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YHK 20-2 — YHK / YHK–ECM cassette fan coil units

Вид документаКаталожна сторінка
ВиробникJCI
МоделіYHK 20-2, YHK 25-2, YHK 40-2, YHK 50-2, YHK 65-2, YHK 95-2, YHK 110-2, YHK 20-4
Група обладнанняother
Мова документаанглійська
Розмір файлу6.1 МБ

Про документ

Chilled water cassette fan coils for false ceiling installation, available in seven sizes (four fitting 600x600 mm ceiling modules and three at 800x800 mm) in 2-pipe and 4-pipe versions with one or two heat exchanger batteries. The YHK–ECM series replaces the standard 6-speed single-phase motor with a brushless permanent magnet DC motor driven by an integral inverter card, allowing continuous air flow variation via a 1-10 V signal and reducing electric consumption by more than 75 % compared to a traditional motor.

Ключові дані

Air flow range (YHK 20-2 … YHK 110-2)310 … 1820 m3/h
Cooling total emission (2 pipe, 7/12°C)1,27 … 11,10 kW
SupplySingle phase 230V 50Hz
Max. working pressure (water)8 bars
Condensate pump max head650 mm
ECM motor absorptionno greater than 10 Watt in the entire range
Dimensions (600x600 sizes)575 x 575 x 275 mm
Dimensions (800x800 sizes)820 x 820 x 303 mm

Застосування

  • Cooling and heating of commercial rooms via false ceiling cassettes (600x600 or 800x800 mm modules)
  • Fresh air supply mixed with return air inside the unit
  • Air distribution to distant areas via two side air outlets for ducted supply
  • Environments without false ceilings via the OCA exposed-casing version

Особливості

  • Integral quiet condensate pump, maximum head 650 mm
  • Automatic speed selection; multiple units controllable from one control
  • Infra-red remote control option with RS485 serial connection up to 20 units
  • Free wireless control system (radio protocol IEEE802.15.4)
  • Maxinet management system for networks of fan coils (up to 60 units per DRC-DI controller)
  • ECM version: brushless synchronous permanent magnet motor with inverter card, continuous 1-10 V air flow control
  • MD-600 metal diffuser version fits 600x600 false ceiling modules without overlapping parts
  • Electric resistance heating option on YHK-E 2 pipe models (factory mounted only)

Технічні дані

Parameter Value
Sizes 7 (YHK 20 to YHK 110); 4 smaller sizes fit 600x600 mm ceiling modules, 3 bigger sizes 800x800 mm
Air flow (standard models, speeds 1-3) 310/420/610 m³/h (YHK 20) up to 710/1280/1820 m³/h (YHK 110)
Air flow (ECM models, speeds 1-3) 310/380/535 m³/h (YHK 25-2) up to 710/1130/1770 m³/h (YHK 95-2)
Cooling total emission, 2 pipe (7/12°C water, +27°C d.b. +19°C w.b. air) 1,27 … 11,10 kW (standard), 1,84 … 10,75 kW (ECM)
Heating emission, 2 pipe (+50°C water, +20°C air) 1,62 … 14,00 kW (standard), 2,22 … 12,73 kW (ECM)
Sound power Lw 33 … 59 dB(A) depending on model/speed
Standard supply (fan motors, YHK) single phase 230V/50Hz, class B insulation, Klixon thermal protection, 6-speed motor (3 speeds connected)
ECM supply single phase 220 - 240 V, 50 - 60 Hz; BLAC three phase permanent magnet DC brushless motor with inverter board
Condensate pump float switch centrifugal, max head 650 mm, integral
Casing galvanized steel, closed cell polyethylene thermal insulation 10 mm thick, anti-condensate lining
Heat exchanger copper tubes with bonded aluminium fins; 1, 2 or 3 rows (2 pipe), 2+1 rows (4 pipe)
Condensate tray material high density ABS polystyrene foam, fire retardant rating B2 to DIN 4102
Water connections, 2 pipe small/large sizes flow & return 1/2” / 3/4”
Water connections, 4 pipe heating flow/return 1/2”; cooling flow/return 1/2” (small) / 3/4” (large)
Working pressure (water) MAX. 8 bars
Entering water temperature MIN +5°C, MAX +80°C
Entering air temperature MIN 6°C, MAX 40°C
Suitable relative humidity 15 - 75%
Fresh air flow limit 20% of total fan coil air flow at medium speed and 100 m³/h per treated air inlet; 110 x 55 mm rectangular ducts
Valve set (accessory) rated pressure 16 bar; actuator 230 V - 50/60 Hz, 3 VA, IP 43, travel time approx. 3 min.; max water flow temperature 110 °C; max glycol content 50%
Unit dimensions (600x600 sizes) 575 x 575 x 275 mm; weight packed/unpacked e.g. 28/22 kg (YHK 25-2)
Unit dimensions (800x800 sizes) 820 x 820 x 303 mm; weight packed/unpacked 47/39 kg (YHK 95)
Diffuser A dimension MD 599 mm; MDA 625 mm
Electric resistance (YHK-E) 1500 W (YHK 25-2-E, 230V ~); 2500 W (YHK 40-2-E/50-2-E, 230V ~); 3000 W (YHK 65-2-E/95-2-E/110-2-E, 400V ~)

Варіанти замовлення

  • AKPA / AKPB / AKPC / AKPD intake grid and louver colour versions; MD-600 metal diffuser version
  • Accessories (identification codes as printed): fresh air connection FAD 6078005; fresh air kit FAK 600 (9079230) / FAK 800 (9079231); wall controls BR 9060540, TR 9060541, ATR 9060542, TMO-503-SV2 9060172, DTR 9060521; speed switches REC-S 9079110, REC-D 9060139; TME 3021091; CH 15-25 9053049; T2 9079103; ETN +/-3°C 9079106; Free system Free-Com 9060572, Free-Upm 9060571, Free-Ups 9060570, Free-Sen 9060573; CR-T-ECM 9066342, UPM-ECM 9066341, UPS-ECM 9066340, NTC 3021090, ETN/ECM 3021232, RT03/ECM 9079220; DRC-DI 9079102; MaxiNet output card S08R 9079105; MD diffuser IR receiver kit 9060178; OCA casing codes 9079240 and 9079250; OCA valve kits 9079155 and 9079156

Допуски та стандарти

  • EUROVENT certification program for fan coil performance certification (cooling total/sensible emission, heating emission, fan absorption, water pressure drop, sound power)
  • Fire retardant rating B2 to DIN 4102 (condensate tray)
  • TMO-503-SV2 and DTR controls installable in DIN 503 wall box

Текст документа

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              Cod. A4790142 C/01/11
                                      YHK
YHK - 01/11                                   Cassette Fan Coil Units
                                      YHK–ECM                            www.eurovent-certification.com
                                                                             www.certiflash.com
CONTENTS
• YHK
  • Introduction                                           Page 3
  • Main components                                        Page 4
  • EUROVENT Certifications                                Page 5
  • Emissions                                              Page 6
  • Water side pressure drop                               Page 8
  • Working conditions                                     Page 8
  • Dimensions and weights                                 Page 10
  • Air throw                                              Page 12
  • Fresh air supply                                       Page 13
  • Air distribution                                       Page 13
  • Accessories                                            Page 14
  • Wall electronic controls                               Page 16
  • Free wireless control system                           Page 20
  • Unit with infra-red remote control                     Page 22
  • Electric resistance YHK-E                              Page 25

• YHK–ECM
  • Introduction                                           Page 26
  • Main components                                        Page 27
  • EUROVENT Certifications                                Page 28
  • Emissions                                              Page 29
  • Water side pressure drop
  • Working conditions
                                                           Page 31
                                                           Page 31
                                                                             MD-600
  • Dimensions and weights                                 Page 32           Version
  • Air throw                                              Page 34
  • Accessories                                            Page 35
  • YHKY−ECM configuration                                 Page 37
  • Wall electronic control                                Page 38
  • YHKH−ECM configuration                                 Page 40
  • IR remote control with receiver and ETN/ECM control    Page 41

• YHK / YHK–ECM
  • Unit with IR / EC−IR electronic board                Page 43
  • Maxinet management system for a network of fan coils Page 44
  • Accessories Maxinet 7                                Page 46

• YHK Cassette OCA
  • Introduction                                           Page 47
  • Dimensions and weights                                 Page 48
  • Assembly diagram                                       Page 49
  • Components of the casing                               Page 50
  • Valve kit                                              Page 50




                                         Johnson Controls take part to the Eurovent program of fan coil performance certification.
                                         The official figures are published in the web site
                                         www.eurovent-certification.com and in the web site www.certififlash.com.
                                         The tested performances are:

• Cooling total emission at the following conditions:
  - Water temperature               +7°C E.W.T.       +12°C L.W.T.
                                                                             • Cooling sensible emission at the following conditions:
                                                                               - Water temperature             +7°C E.W.T.         +12°C L.W.T.
                                                                                                                                                      The descriptions and illustrations provided in this publication are not binding:
  - Entering air temperature        +27°C dry bulb    +19°C wet bulb           - Entering air temperature      +27°C dry bulb      +19°C wet bulb   Johnson Controls reserve the right, whilst maintaining the essential characteristics
• Heating emission (2 pipe units) at the following conditions:               • Heating emission (4 pipe units) at the following conditions:                    of the types described and illustrated, to make, at any time,
  - Entering water temperature +50°C                                           - Water temperature             +70°C E.W.T.        +60°C L.W.T.            without the requirement to promptly update this piece of literature,
  - Entering air temperature      +20°C                                        - Entering air temperature      +20°C
  - Water flow rate as for the cooling conditions                                                                                                                  any changes that it considers useful for the purpose
              • Fan absorption                                   • Water pressure drop                              • Sound power                      of improvement or for any other manufacturing or commercial requirements.
Introduction

Innovating and beautiful design, seven different sizes, high control flexibility, easy maintenance: the
new YHK chilled water cassette is the result of an extended technical and design development
aimed at achieving the highest level in terms of performance, silent operation and control
possibilities.

The air diffuser has an highly attractive aesthetical appearance, very innovative, and is also able
to offer the best air distribution performance thanks to long computer studies and laboratory tests.
The standard colour is RAL 9003, other colours available on request.

The 4 smaller sizes are designed to fit into 600x600 mm false ceiling standard modules. The 3
bigger sizes have a dimension of 800x800 mm which allows the best outcome in terms of quiet-
ness and of price/performance ratio for these high capacity models.

Every unit can be supplied with
1 battery (2 pipe system) and a
possible electric resistance or
with 2 batteries (4 pipe system).
Each model can have fresh air
intake and a remote air diffuser
can be connected to the unit.

The condensate pump is integral
with the unit, is very quiet and
has a maximum head of 650 mm.

In addition to the temperature
and speed standard controls,
automatic speed selection is
also available. More than one
unit can be connected to a single
control, and the unit control panel
can be installed in a position
that facilitates the maintenance
operation. Every unit can also
be operated by the means of an
infra-red remote control. The YHK
cassettes can also be connected
to the most common automatic
building management systems.

Finally, each unit can be equipped
with a low energy consumption
electric motor that is controlled
by an inverter card that makes
possible continuous air flow
variations.




                                                                                                     3
Main components

INTAKE GRID AND DISTRIBUTION OF THE AIR
Intake grids, frame and adjustable air distribution louvers on each side, made from ABS.
AKPA version : white ABS, RAL 9003
AKPB version : with intake grid, frame and louvers, choice of one colour only
AKPC version : with intake grid and louvers, choice of one colour, plus white ABS frame RAL 9003
AKPD version : with louvers, choice of one colour, while the grid and frame are made from ABS,
		 RAL 9003
MD-600 version : metal diffuser painted in RAL 9003 white colour with 600x600 dimension to perfectly
		 fit into the false ceiling standard modules without overlapping parts (800x800 model
		 is not available).

CASING
Is made from galvanized steel with inside thermal insulation (closed cell polyethelene 10 mm thick) and
outside anti-condensate lining.

CONTROL PANEL
Made of an external box with the control electronic board with an easily accessible terminal board.

FAN ASSEMBLY
The fan assembly, which is mounted on anti-vibrating supports, is extremely silent.
The radial fan has been designed to optimise performance, using wing profile blades with a shape that
reduce turbulence, increasing efficiency and reducing noise.
The single air inlet radial fan is connected to a 6 speed electric motor with single phase 230V/50Hz supply,
class B insulation and integrated Klixon thermal contact for motor protection.
The units are supplied with 3 standard speeds connected and it is possible to change them on site if
necessary.

HEAT EXCHANGER
Made of copper tubes with bonded aluminium fins for maximum transfer contact.
The batteries are with 1, 2 or 3 rows for 2 pipe models and 2+1 rows for 4 pipe models (the heating row
is on the inside part of the battery).
The heat exchanger is not suitable for use in corrosive atmosphere or in environments where aluminium
may be subject to corrosion.

CONDENSATE COLLECTION TRAY
High density ABS polystyrene foam condensate tray, shaped in order to optimize the air diffusion, fire
retardant rating B2 to DIN 4102.

AIR FILTER
Synthetic washable filter, easily removable.

CONDENSATE PUMP
Float switch centrifugal pump with 650 mm of maximum head, integral to the unit and wired to the control
panel on the outside of the casing.

VALVE SET
Two or three way valves for ON/OFF operation, with pipe mounting kit and thermostatic actuator.


4
EUROVENT Certification

Technical features                                                 www.eurovent-certification.com
                                                                       www.certiflash.com

2 pipe units. The following standard rating conditions are used:

COOLING                                                                       HEATING
Entering air temperature: + 27°C d.b., + 19°C w.b.                            Entering air temperature: + 20°C
Water temperature:        + 7/12°C                                            Water temperature:         + 50°C
                                                                              water flow rate as for the cooling conditions

MODEL                           YHK 20-2             YHK 25-2           YHK 40-2            YHK 50-2             YHK 65-2          YHK 95-2 YHK 110-2
Speed                            1       2      3      1      2     3     1     2     3       1     2      3       1      2   3    1     2     3   1     2     3
Air flow                   m3/h 310    420    610    310    420 520 320 500          710    430    610    880    630    820 1140 710 970 1500 710 1280 1820
Cooling total emission     kW 1,27     1,63   1,98   1,84   2,34 2,68 2,25 3,34      4,33   2,94   3,88   5,02   4,21   4,91 6,16 5,31 6,78 9,51 5,31 8,45 11,10
Cooling sensible emission kW 1,01      1,32   1,64   1,35   1,75 2,04 1,57 2,39      3,18   2,08   2,81   3,74   3,03   3,58 4,59 3,46 4,48 6,48 3,71 6,09 8,25
Heating                    kW 1,62     2,12   2,64   2,22   2,90 3,35 2,56 3,93      5,23   3,43   4,63   6,17   5,12   6,03 7,77 5,61 7,34 10,71 6,13 10,30 14,00
Water flow                  l/h 219    280    340    316    402 461 387 574          745    506    667    863    724    845 1060 913 1166 1636 913 1453 1909
∆P Cooling                 kPa 4,5      7,0   10,0    4,9    7,6 9,7 4,6 9,4         15,1    7,5   12,4   19,7   10,9   14,3 21,6 9,4 14,7 26,9 9,4 21,8 35,6
∆P Heating                 kPa 4,0      6,0    9,0    4,1    6,3 8,2 3,5 7,3         11,4    6,7   11,2   17,7    6,7    9,9 15,1 7,9 12,4 23,0 7,9 18,6 30,6
Sound power Lw            dB(A) 33      40     49     33     40    45    33    45     53     41     49     59     33     40   48   34    40   53   34   48    58
Sound pressure Lp         dB(A) 24      31     40     24     31    36    24    36     44     32     40     50     24     31   39   25    31   44   25   39    49
                            W    25     32     57     25     32    44    25    44     68     32     57     90     33     48   77   42    63 120 42      95 170
Fan
                             A  0,11   0,15   0,27   0,11   0,15 0,20 0,11 0,20      0,32   0,15   0,27   0,45   0,15   0,23 0,36 0,18 0,28 0,53 0,18 0,42 0,74
Water content                 l        0,8                  1,4                2,1                 2,1                  3,0             4,0             4,0
Dimensions                 mm                                   575 x 575 x 275                                                   820 x 820 x 303




4 pipe units. The following standard rating conditions are used:

COOLING                                                                       HEATING
Entering air temperature: + 27°C d.b., + 19°C w.b.                            Entering air temperature: + 20°C
Water temperature:        + 7/12°C                                            Water temperature:        + 70/60°C

MODEL                           YHK 20-4             YHK 25-4           YHK 40-4            YHK 50-4             YHK 65-4          YHK 95-4 YHK 110-4
Speed                            1      2      3       1      2     3     1     2     3       1     2      3       1     2    3    1     2     3   1    2     3
Air flow                   m3/h 310    420    610    310    420 520 320 500          710    430    610    880    630    820 1140 710 970 1500 710 1280 1820
Cooling total emission     kW 1,51     1,96   2,33   1,85   2,36 2,70 1,85 2,65      3,34   2,36   3,02   3,81   4,14   5,03 6,34 4,52 5,66 7,71 4,52 6,93 8,89
Cooling sensible emission kW 1,15      1,55   1,90   1,34   1,71 1,98 1,34 1,98      2,56   1,75   2,29   2,97   2,96   3,65 4,69 3,25 4,15 5,83 3,25 5,18 6,84
Water flow                  l/h 260    337    401    318    406 464 318 456          574    406    519    655    712    865 1090 777 974 1326 777 1192 1529
∆P Cooling                 kPa 6,0     10,0   13,5    4,6    6,9 8,8 4,6 8,8         13,4    7,2   11,2   17,0    8,8   12,5 18,9 10,3 15,4 26,9 10,3 22,1 34,7
Heating                    kW 1,96     2,54   3,03   2,43   3,02 3,46 2,43 3,46      4,40   3,10   3,97   4,95   5,91   7,19 9,10 6,45 8,10 11,00 6,45 9,98 12,70
Water flow                  l/h 169    219    261    209    260 298 209 298          378    267    341    426    508    618 783 555 697 946 555 858 1092
∆P Heating                 kPa 6,5     10,5   14,5    5,7   8,5 10,8 5,7 10,8        16,6    8,8   13,8   20,5    9,8   14,0 21,4 11,5 17,4 29,9 11,5 25,3 38,8
Sound power Lw            dB(A) 33      40     49     33     40    45    33    45     53     41     49     59     33     40   48   34    40   53   34   48   58
Sound pressure Lp         dB(A) 24      31     40     24     31    36    24    36     44     32     40     50     24     31   39   25    31   44   25   39   49
                            W    25     32     57     25     32    44    25    44     68     32     57     90     33     48   77   42    63 120 42      95 170
Fan
                             A  0,11   0,15   0,27   0,11   0,15 0,20 0,11 0,20      0,32   0,15   0,27   0,45   0,15   0,23 0,36 0,18 0,28 0,53 0,18 0,42 0,74
Cooling water content         l        1,0                  1,4                1,4                 1,4                  3,0             3,0            3,0
Heating water content         l        0,6                  0,7                0,7                 0,7                  1,4             1,4            1,4
Dimensions                 mm                                   575 x 575 x 275                                                   820 x 820 x 303

The sound pressure levels are 9 dB(A) lower than the sound power levels
and apply to the reverberant field of a 100 m3 room and a reverberation time of 0.5 sec.




                                                                                                                                                                5
Emission

Cooling emission of 1 battery units (2 pipe installation)
Entering air temperature:           +27°C d.b.          +19°C w.b.
                              EWT 5 - LWT 10°C                  EWT 7 - LWT 12°C              EWT 9 - LWT 14°C              EWT 12 - LWT 17°C
                     Air
    Model   Speed           Water      Total Sensible       Water        Total Sensible     Water     Total Sensible        Water     Total Sensible
                    flow
                            flow      emission emission     flow        emission emission   flow     emission emission      flow     emission emission
                    m3/h      l/h       kW         kW           l/h        kW      kW         l/h      kW       kW           l/h       kW       kW
            High     610     421        2,45      1,83       340          1,98     1,64      254       1,47     1,45         199      1,16     1,16
    YHK
            Med      420     346        2,01      1,48       280          1,63     1,32      210       1,22     1,16         160      0,93     0,93
    20-2             310     269        1,57      1,14
            Low                                              219          1,27     1,01      165       0,96     0,89         123      0,71     0,71
            High     520     554        3,22      2,22       462          2,68     2,04      362       2,10     1,75         252      1,47     1,47
    YHK
            Med      420     482        2,80      1,91       403          2,34     1,75      317       1,84     1,50         220      1,28     1,28
    25-2             310     417
            Low                         2,42      1,64       317          1,84     1,35      276       1,61     1,29         188      1,09     1,09
            High     710     926        5,38      3,64       745          4,33     3,18      617       3,59     2,87         420      2,44     2,44
    YHK
            Med      500     715        4,15      2,77       575          3,34     2,39      483       2,81     2,18         319      1,86     1,86
    40-2
            Low      320     508        2,95      1,94       387          2,25     1,57      349       2,03     1,53         225      1,31     1,31
            High     880    1049        6,10      4,17       863          5,02     3,74      694       4,03     3,29         479      2,79     2,79
    YHK
            Med      610     835        4,85      3,26       667          3,88     2,81      559       3,25     2,57         376      2,19     2,19
    50-2
            Low      430     633        3,68      2,44       506          2,94     2,08      430       2,50     1,92         283      1,65     1,65
            High    1140    1264        7,35      5,00      1060          6,16     4,59      840       4,88     3,95         573      3,33     3,33
    YHK
            Med      820    1003        5,83      3,92       845          4,91     3,58      674       3,92     3,09         453      2,63     2,63
    65-2
            Low      630     858        4,99      3,32       722          4,21     3,03      580       3,37     2,62         384      2,23     2,23
            High    1500    1943       11,30      7,59      1635          9,51     6,48     1301       7,57     5,99         880      5,12     5,12
    YHK
            Med      970    1374        7,99      5,27      1166          6,78     4,48      939       5,46     4,15         612      3,56     3,56
    95-2
            Low      710    1070        6,22      4,06       913          5,31     3,46      740       4,30     3,20         434      2,52     2,52
            High    1820    2277       13,24      9,01      1909         11,10     8,25     1511       8,78     7,11        1044      6,07     6,07
YHK
            Med     1280    1722       10,01      6,68      1454          8,45     6,09     1162       6,75     5,27         775      4,51     4,51
110-2
            Low      710    1070        6,22      4,06       913          5,31     3,71      740       4,30     3,20         434      2,52     2,52


Heating emission of 1 battery units (2 pipe installation)
Entering air temperature:           +20°C
                            EWT 45 - LWT 40°C EWT 50 - LWT 40°C EWT 60 - LWT 50°C EWT 70 - LWT 60°C EWT 80 - LWT 70°C
                     Air
    Model   Speed            Water                      Water                    Water                  Water                       Water
                    flow                Emission                      Emission              Emission              Emission                   Emission
                             flow                       flow                     flow                   flow                        flow
                    m3/h      l/h           kW           l/h            kW        l/h         kW         l/h           kW            l/h       kW
            High     610      386         2,24           203            2,37       298        3,46        393       4,56            488        5,67
    YHK
            Med      420      310         1,80           164            1,91       239        2,78        315       3,66            391        4,55
    20-2
            Low      310      237         1,38           126            1,46       183        2,13        240       2,80            298        3,47
            High     520      482         2,80           266            3,10       377        4,39        488       5,68            599        6,97
    YHK
            Med      420      417         2,42           232            2,69       327        3,80        422       4,91            513        5,96
    25-2
            Low      310      356         2,07           198            2,31       279        3,25        360       4,19            441        5,12
            High     710      787         4,57           440            5,12       619        7,19        795       9,25            972       11,30
    YHK
            Med      500      593         3,45           334            3,89       467        5,43        598       6,96            730        8,48
    40-2
            Low      320      412         2,39           235            2,73       326        3,79        415       4,83            505        5,87
            High     880      903         5,25           504            5,86       709        8,25        914      10,63            1118      13,00
    YHK
            Med      610      702         4,08           394            4,58       552        6,42        709       8,25            866       10,07
    50-2
            Low      430      520         3,02           294            3,42       410        4,77        524       6,10            639        7,43
            High    1140     1118         6,50           624            7,26       878       10,21       1130      13,14            1383      16,08
    YHK
            Med      820      865         5,03           486            5,65       681        7,92        874      10,16            1067      12,41
    65-2
            Low      630      734         4,27           415            4,82       578        6,72        741       8,61            903       10,50
            High    1500     1683         9,78           951           11,06      1327       15,43       1699      19,76            2071      24,08
    YHK
            Med      970     1146         6,67           655            7,62       906       10,54       1155      13,43            1403      16,32
    95-2
            Low      710      876         5,09           505            5,87       694        8,07        882      10,25            1068      12,42
            High    1820     2015        11,72          1132           13,17      1586       18,45       2037      23,68            2486      28,91
YHK
            Med     1280     1471         8,55           834            9,70      1161       13,50       1484      17,26            1807      21,01
110-2
            Low      710      876         5,09           505            5,87       694        8,07        882      10,25            1068      12,42

Emission correction factors for different working conditions.
Multiply the factors by the emission figures in the 7-12°C table above.
                  Total emission                                                  Sensible emission                           Note:
 Water (°C)    Air (°C)   25-18 26-18.5          28-20      Water (°C)           Air (°C)  25-18 26-18.5         28-20        the correction
  7/12 °C         K        0,82  0,89             1,11       7/12 °C                K       0,9     0,94          1,06        factors are indicative,
 10/15 °C         K        0,56  0,63             0,82      10/15 °C                K       0,72    0,78          0,9         as they are
 14/18 °C         K        0,35  0,41             0,52      14/18 °C                K       0,5     0,58          0,72        average values.

6
Emission of 4 pipe units
with standard cooling battery
Cooling emission of 2 battery units (4 pipe installation)
Entering air temperature:           +27°C d.b.           +19°C w.b.
                              EWT 5 - LWT 10°C                   EWT 7 - LWT 12°C              EWT 9 - LWT 14°C              EWT 12 - LWT 17°C
                     Air
 Model    Speed             Water      Total Sensible        Water        Total Sensible     Water    Total Sensible         Water     Total Sensible
                    flow
                            flow      emission emission      flow        emission emission   flow    emission emission       flow     emission emission
                    m3/h      l/h       kW          kW           l/h        kW      kW         l/h      kW       kW           l/h       kW       kW
           High      610     490        2,85        2,12     401           2,33     1,90      307       1,78     1,69        239       1,39     1,39
 YHK
           Med       420     410        2,38        1,73     337           1,96     1,55      260       1,51     1,37        196       1,14     1,14
 20-4                        314
           Low       310                1,82        1,29     260           1,51     1,15      201       1,17     1,02        148       0,86     0,86
           High      520     569        3,31        2,26     465           2,70     1,98      374       2,18     1,79        260       1,51     1,51
 YHK
           Med       420     465        2,71        1,83     405           2,36     1,70      309       1,80     1,44        210       1,22     1,22
 25-4
           Low       310     398        2,31        1,55     318           1,85     1,34      267       1,55     1,22        177       1,03     1,03
           High      710     718        4,18        2,91     574           3,34     2,56      467       2,72     2,30        330       1,92     1,92
 YHK
           Med       500     569        3,31        2,26     455           2,65     1,98      374       2,18     1,79        260       1,51     1,51
 40-4
           Low       320     398        2,31        1,55     318           1,85     1,34      267       1,55     1,22        177       1,03     1,03
           High      880     791        4,60        3,23     656           3,81     2,97      512       2,98     2,56        366       2,13     2,13
 YHK
           Med       610     632        3,67        2,53     520           3,02     2,29      413       2,40     2,00        288       1,67     1,67
 50-4
           Low       430     510        2,97        2,01     405           2,36     1,75      337       1,96     1,59        231       1,35     1,35
           High     1140    1299        7,55        5,12     1090          6,34     4,69      864       5,02     4,04        586       3,41     3,41
 YHK
           Med       820    1027        5,97        4,00     866           5,03     3,65      691       4,02     3,15        462       2,68     2,68
 65-4
           Low       630     842        4,89        3,24     713           4,14     2,96      572       3,33     2,56        374       2,17     2,17
           High     1500    1588        9,23        6,35     1327          7,71     5,83     1046       6,08     5,02        7,26      4,22     4,22
 YHK
           Med       970    1158        6,73        4,53     974           5,66     4,15      775       4,50     3,57        524       3,05     3,05
 95-4
           Low       710     920        5,35        3,56     778           4,52     3,25      623       3,62     2,81        411       2,39     2,39
           High     1820    1836       10,67        7,43     1529          8,89     6,84     1199       6,97     5,98        849       4,94     4,94
YHK
           Med      1280    1423        8,27        5,64     1191          6,93     5,18      942       5,48     4,46        646       3,75     3,75
110-4
           Low       710     920        5,35        3,56     778           4,52     3,25      623       3,62     2,81        411       2,39     2,39


Heating emission of 2 battery units (4 pipe installation)
Entering air temperature:           +20°C

                     Air    EWT 45 - LWT 40°C EWT 50 - LWT 40°C EWT 60 - LWT 50°C EWT 70 - LWT 60°C EWT 80 - LWT 70°C
 Model    Speed              Water                       Water                    Water                  Water                       Water
                    flow                Emission                       Emission              Emission              Emission                   Emission
                             flow                        flow                     flow                   flow                        flow
                    m3/h      l/h           kW            l/h            kW        l/h         kW         l/h           kW            l/h       kW
           High      610      256           1,49           134          1,56       197        2,29        261        3,03             325       3,78
 YHK
           Med       420      215           1,25           113          1,31       166        1,93        219        2,54             272       3,17
 20-4
           Low       310      166           0,96            87          1,01       128        1,49        169        1,96             210       2,44
           High      520      283           1,65           149          1,73       218        2,54        298        3,46             358       4,17
 YHK
           Med       420      247           1,44           130          1,51       191        2,22        260        3,02             312       3,63
 25-4
           Low       310      196           1,14           103          1,20       151        1,76        209        2,43             247       2,87
           High      710      351           2,04           184          2,14       270        3,14        378        4,40             444       5,17
 YHK
           Med       500      277           1,61           146          1,69       214        2,48        298        3,46             350       4,07
 40-4
           Low       320      196           1,14           103          1,20       151        1,76        209        2,43             247       2,87
           High      880      402           2,34           211          2,45       310        3,60        426        4,95             510       5,93
 YHK
           Med       610      317           1,84           166          1,94       244        2,84        341        3,97             401       4,67
 50-4
           Low       430      247           1,44           130          1,51       191        2,22        267        3,10             312       3,63
           High     1140      771           4,48           410          4,76       596        6,93        783        9,10             970      11,28
 YHK
           Med       820      609           3,54           324          3,77       471        5,48        618        7,19             766       8,90
 65-4
           Low       630      501           2,91           267          3,11       388        4,51        508        5,91             629       7,31
           High     1500      929           5,40           493          5,73       718        8,34        946       11,00            1170      13,60
 YHK
           Med       970      686           3,99           365          4,25       531        6,17        697        8,10             864      10,04
 95-4
           Low       710      547           3,18           291          3,39       423        4,92        555        6,45             686       7,98
           High     1820     1074           6,24           569          6,61       829        9,64        1092      12,70            1353      15,74
YHK
           Med      1280      845           4,91           449          5,22       653        7,60        858        9,98            1064      12,37
110-4
           Low       710      547           3,18           291          3,39       423        4,92        555        6,45             686       7,98

Emission correction factors for different working conditions.
Multiply the factors by the emission figures in the 7-12°C table above.
                  Total emission                                                   Sensible emission                           Note:
 Water (°C)    Air (°C)   25-18 26-18.5            28-20         Water (°C)       Air (°C)  25-18 26-18.5         28-20        the correction
  7/12 °C         K        0,82  0,89               1,11          7/12 °C            K        0,9    0,94          1,06        factors are indicative,
 10/15 °C         K        0,56  0,63               0,82         10/15 °C            K       0,72    0,78          0,9         as they are
 14/18 °C         K        0,35  0,41               0,52         14/18 °C            K        0,5    0,58          0,72        average values.

                                                                                                                                                       7
Water side pressure drop

                                                                      2 pipe installation




             Pressure drop (kPa)




                                                                                                            Pressure drop
                                                                                                 for mean water temperature of 10°C,
                                                                                     for different temperatures multiply the pressure drop figure
                                                                                                by the K correction factors in the table.

                                                                                       °C 20 30 40 50 60 70 80
                                                                                        K 0,94 0,90 0,86 0,82 0,78 0,74 0,70
                                   Water flow (l/h)




                                                                      4 pipe installation
Pressure drop                                                                        Pressure drop
for cooling battery                                                                  for heating battery




             Pressure drop (kPa)                                                                  Pressure drop (kPa)




                                   Water flow (l/h)                                                                     Water flow (l/h)

                           Pressure drop                                                                    Pressure drop
                for mean water temperature of 10°C,                                              for mean water temperature of 65°C,
    for different temperatures multiply the pressure drop figure                     for different temperatures multiply the pressure drop figure
               by the K correction factors in the table.                                        by the K correction factors in the table.

      °C 20 30 40 50 60 70 80                                                                  °C 40 50 60 70 80
       K 0,94 0,90 0,86 0,82 0,78 0,74 0,70                                                     K 1,14 1,08 1,02 0,96 0,90
Working conditions

Water flow                                       MAX. working pressure                        MIN. entering water temperature: + 5°C
                                                 8 bars                                       MAX. entering water temperature: + 80°C
Air flow                                         Suitable relative humidity                   MIN. entering air temperature: 6°C
                                                 15 - 75%                                     MAX. entering air temperature: 40°C
Supply                                           Single phase 230V 50Hz
Installation                                     MAX. height: See table on page 12

8
NOTES




        9
Dimensions and weights

YHK 20/25/40/50-2
                                  (Version 600 x 600)
YHK 20/25/40/50-4




                                                                                  2 pipe units
                                                                                  - 3. Flow,
                                                                                       heating/cooling 1/2”
                                                                                  - 4. Return,
                                                                                       heating/cooling 1/2”

                                                                                  4 pipe units
                                                                                  - 1. Flow, heating 1/2”
                                                                                  - 2. Return, heating 1/2”
                                                                                  - 3. Flow, cooling 1/2”
                                                                                  - 4. Return, cooling 1/2”




MD-600
METAL DIFFUSER
(receiver kit
for MD diffuser
for infra-red control:
Code 9060178)



                                                                              Model              A (mm)
                                                                               MD                 599
                                                                              MDA                 625


                                       UNIT                       DIFFUSER                   Packed unit
                          Weights           Weights        Weights        Weights            Dimensions
       Model
                         packed unit      unpacked unit   packed unit   unpacked unit       A B C D
                             kg                kg             kg             kg                 mm
YHK 20-2 / 25-2              28                22
YHK 20-4 / 25-4
                                                              6               3           790 350 750 150
YHK 40-2 / 40-4              30                24
YHK 50-2 / 50-4

10
Dimensions and weights

YHK 65/95/110-2
                        (Version 800 x 800)
YHK 65/95/110-4




                                                                             2 pipe units
                                                                             - 3. Flow,
                                                                                  heating/cooling 3/4”
                                                                             - 4. Return,
                                                                                  heating/cooling 3/4”

                                                                             4 pipe units
                                                                             - 1. Flow, heating 1/2”
                                                                             - 2. Return, heating 1/2”
                                                                             - 3. Flow, cooling 3/4”
                                                                             - 4. Return, cooling 3/4”




PACKED UNIT
                                     UNIT                               DIFFUSER




                                  UNIT                       DIFFUSER                   Packed unit
                     Weights           Weights        Weights        Weights            Dimensions
     Model
                    packed unit      unpacked unit   packed unit   unpacked unit       A B C D
                        kg                kg             kg             kg                 mm
YHK 65-2                44                36
YHK 65-4
                                                         10              6           1050 400 1000 200
YHK 95-2 / 95-4         47                  39
YHK 110-2 / 110-4

                                                                                                         11
Air throw

The air throw indicated in the tables must only be considered the maximum value, as it may
change significantly in relation to the dimensions of the room in which the appliance is installed
and the positioning of the furniture in the room.
The useful throw L refers to the distance between the unit and the point where the air speed
is 0.2 m/sec; if the louver has a gradient of 30° (recommended in cooling mode), the so-called
“Coanda” effect will occur, illustrated in the first figure, while at a gradient of 45° (recommended
in heating mode), there will be a downwards throw, as illustrated in the second figure.
With adjustable
air diffusion louvers at 30°




Model              YHK 20/25      YHK 40        YHK 50        YHK 65       YHK 95       YHK 110
Speed            1   2   3   1   2   3   1   2   3   1   2   3   1   2   3   1   2   3
Air throw   L m 3,0 3,5 3,8 3,0 3,8 4,5 3,5 4,2 5,0 3,2 3,7 4,3 3,4 4,0 5,0 3,4 4,6 5,5


With adjustable
air diffusion louvers at 45°




Model              YHK 20/25      YHK 40        YHK 50        YHK 65       YHK 95       YHK 110
Speed            1   2   3   1   2   3   1   2   3   1   2   3   1   2   3   1   2   3
Air throw   L m 3,3 3,9 4,2 3,3 4,2 4,8 3,9 4,5 5,2 3,5 4,1 4,8 3,8 4,6 5,4 3,8 5,1 5,8
Height      H m 2,2 2,6 2,8 2,2 2,8 3,2 2,6 3,0 3,4 2,2 2,6 3,0 2,4 2,8 3,4 2,4 3,1 3,6
Distance    B m 2,5 2,9 3,1 2,5 3,1 3,6 2,9 3,4 3,9 2,7 3,2 3,8 3,0 3,6 4,2 3,0 4,0 4,6


NOTE:
On heating it must be payed attention to rooms where the floor temperature
is particularly low (for example less than 5°C).
In this situation the floor can cool the lower layer of air to a level that stop
the uniform diffusion of the hot air coming from the unit,
decreasing the throw figures shown in the table.

12
Fresh air supply

The cassette is fitted
with inlets for fresh air to be mixed
with return air inside the unit (Fig. 3).

The fresh air flow is limited to 20%
of the total fan coil air flow
at medium speed and 100 m3/h
for each treated air inlet.

The units feature fresh air inlets on three corners (no inlets
on the fourth corner because of the condensate pump inside the unit).

The fresh air inlets are designed for the insertion of standard 110 x 55 mm
rectangular ducts.

The air duct is connected quickly and easily.
After removing the blank and the insulation inside the unit,
the mounting plate is rolled back and the air duct with its V-shaped section
must be pushed into the unit (see Figures below).
The duct is then fixed to the mounting plate.

Note:
the fresh air must be filtered.



  1                                               2                      3                            4




Air distribution

Two air outlets are                                   No. used outlets = 1                        No. used outlets = 2
provided on the side of
the unit for connection
to separate supply air



                             Pressure drop (Pa)                              Pressure drop (Pa)
outlets.
They can be used
to supply air from the
fan coil unit to distant
areas of a room or even
to a different room.
                                                           Air flow (m3/h)                             Air flow (m3/h)
The total air flow
does not change.
The air flow at high



                             Pressure drop (Pa)                              Pressure drop (Pa)
speed depending on the
air duct pressure drop
is shown in the tables
below.
Note: all air ducts must
be insulated in order to
avoid condensation.                                        Air flow (m3/h)                             Air flow (m3/h)


                                                                                                                         13
Accessories

Fresh air connection
See page 13.




  Identification          Code
           FAD           6078005



Fresh air kit
This is used to introduce primary air into the environment directly through the diffuser. The kit includes a flow separator
to be fitted inside the cassette, and a circular fitting for connection to the flexible system ducting. The flow of air is
sent directly to just one of the outlet louvers, without passing through
the coil. The air flow of fresh air introduced into the environment depend
on the inlet static pressure.




     Model       YHK 20/25/40/50          YHK 65/95/110
Identification      FAK 600                 FAK 800
     Code               9079230              9079231



                Correlation between
             flow-rate / static pressure
     YHK 20/25/40/50               YHK 65/95/110
     m3/h          Pa              m3/h          Pa
     80             3              160             3
     120            8              200             8
     160           15              300            15                                   The diameter of the fitting
     200           25              400            25                               is 150 mm for YHK 20/25/40/50
     240           36              500            36                               and 180 mm for YHK 65/95/110.


Units with remote electric board
On request the YHK cassettes are available with electric control panel reachable from below and with the electric
board that can be placed in a remote position. In this case the units are supplied with an electronic connecting control
panel, fitted to the bottom side on the 4 smallest sizes and to the lateral side on the 3 biggest sizes.
The electronic control panel is connected to the fan motor, to the condensate pump and to the condensate level control.
A 6 m wire is also supplied with integral plug-in
connections to connect the unit with the remote
electric board that can be installed in a suitable
and comfortable position, where the power
and system connections can be made easily.
This feature is not available for units with electric
resistance or infra-red remote control.




14
Accessories

ON-OFF valves with thermoelectric actuator
                     Valve with Micrometric Lockshield Valve
  3 ways                                                         2 ways




                                        Valve with Simplified Kit
  3 ways                                                         2 ways




Technical data:                                    Valves characteristics
Rated pressure:             16 bar                                                  2 way valves               3 way valves
                                                    Battery
Max. ambient temperature:   50 °C                                  Model         Kvs ∆pmax Valve ** Kvs ∆pmax Valve **
                                                     type
Max. water flow temperature: 110 °C                                              m3/h kPa * connection m3/h kPa * connection
                                                                20/25/40/50-2
Power:                      230 V - 50/60 Hz                                     2,8    50       3/4"       2,5    50       3/4"
                                                                20/25/40/50-4
Rating:                     3 VA                     Main
                                                                65/95/110-2
Protection:                 IP 43                                                5,2    60        1"        4,5    50         1"
                                                                65/95/110-4
Travel time:                approx. 3 min.                      20/25/40/50-4
                                                    Auxiliary                    2,8    50       3/4"       2,5    50       3/4"
Max. glycol content of water: 50%                               65/95/110-4

             Valves pressure drop                  * maximum pressure difference for valve to close     ** external thread, flat seal

  ∆p - kPa


                                                   Valve set, 2 or 3 ways, ON-OFF, with thermoelectric actuator.
                                                   The set includes connection pipes.

                                                   Note: The main battery lockshield valve connection
                                                         is 1/2” female (Kvs 2) for YHK 20/25/40/50 sizes
                                                         and 3/4” female (Kvs 3,5) for YHK 65/95/110 sizes,
                                                         the auxiliary battery valve connection is 1/2” female (Kvs 2).

                                                   Note: The maximum pressure drop accross
                                                         the fully open valve should not exceed 25 kPa
                                                         for cooling operation and 15 kPa for heating operation.
                                      Water
                                      flow (l/h)




                                                                                                                                   15
Wall electronic controls




                                   If using the YHK Cassette fan coils
                              with electronic controllers, the voltage values
                     at the autotransformer terminals must be kept in consideration
                                       (transformer return voltages).
                                    These values may reach 500 Vac.




 Identification         Code
        BR            9060540




                                • ON-OFF switch and 3 speed switch.
                                • Without thermostatic control.
                                • It can not control the valves.




     Dimensions: 133x93x37 mm



 Identification         Code
        TR            9060541

                                • ON-OFF switch.
                                • Manual 3 speed switch.
                                • Summer/Winter switch.
                                • Electronic room thermostat for fan control (ON-OFF).
                                • Electronic room thermostat for valve(s) control (ON-OFF) (the fan keeps working).
                                • It allows to control the low temperature cut-out thermostat (TME).
                                • It allows to control the chilled water valve (ON-OFF) and the electric heater in the YHK-E version.
                                • It allows to control the Summer/Winter switch centralized and remote, or to control it with an automatic
                                  change-over fitted on the water pipe (for 2 pipe installations only). The latter case needs the adjustment
                                  of the jumper on the control board (see the instruction leaflet supplied with the control).



     Dimensions: 133x93x37 mm



 Identification         Code
       ATR            9060542   • ON-OFF switch.
                                • Manual or automatic 3 speed switch.
                                • Summer/Winter switch.
                                • Electronic room thermostat for fan control (ON-OFF).
                                • Electronic room thermostat for valve(s) control (ON-OFF) (the fan keeps working).
                                • Simultaneus thermostatic control of the valves and fan.
                                • It allows to control the low temperature cut-out thermostat (TME).
                                • It allows to control the chilled water valve (ON-OFF) and the electric heater in the YHK-E version.
                                • It allows to control the Summer/Winter switch centralized and remote, or to control it with an automatic
                                  change-over fitted on the water pipe (for 2 pipe installations only). The latter case needs the adjustment
                                  of the jumper on the control board (see the instruction leaflet supplied with the control).
                                N.B.: with 4 pipe installations and continuous chilled and hot water supply, it allows the automatic summer
                                		    winter change-over in accordance to the room temperature (-1°C = Winter, +1°C = Summer, Neutral
                                		    Zone 2°C).
     Dimensions: 133x93x37 mm


16
Wall electronic controls

  Identification              Code            The TMO-503-SV2 control for fan coils with valves, is designed to be installed in a DIN 503 wall box.
    TMO-503-SV2             9060172           It is easy to use, it has a big and clear display, and a great precision.
                                              The control is supplied integral with the external frame, but it is possible to use frames of the most
                                              known brand on the market (BTicino, Vimar, AVE, Gewiss).
                                              The highest working electric absorbtion is 200 W.
                                              If the fan coil has an higher absorbtion or more units are connected to the same control, the speed
                                              switch REC-S must be installed.

                                              • Manual or automatic speed switch.
                                              • Manual Summer/Winter switch.
                                              • Electronic thermostat for valves control (ON-OFF).
                                              • Simultaneus thermostatic control of the valves and fan.
                                              • It allows to control the low temperature cut-out thermostat, included with the control.
                                              N.B.: with 4 pipe installations and continuous chilled and hot water supply, it allows the automatic summer/
                                              		    winter change-over in accordance to the room temperature (-1°C = Winter, +1°C = Summer, Neutral
                                              		    Zone 2°C).
        Dimensions: 118x87x8 mm



  Identification              Code
          DTR               9060521           To be installed on the wall or in the DIN 503 box.

                                              • Manual or automatic speed switch.
                                              • Manual or centralized Summer/Winter switch.
                                              • Electronic thermostat for fan control (ON-OFF).
                                              • Electronic thermostat for valve(s) control (ON-OFF).
                                              • Simultaneus thermostatic control of the valves and fan.
                                              • It allows to control the low temperature cut-out thermostat (TME) (not to be used with YHK-E models).
                                              • It allows to control the chilled water valve (ON-OFF) and the electric heater in the YHK-E version.
                                              • It allows to control the fan and the electric heater.
                                              • It allows to control up to 10 units with REC-D speed switch.
                                              N.B.: with 4 pipe installations and continuous chilled and hot water supply, it allows the automatic summer/
                                              		    winter change-over in accordance to the room temperature (-1°C = Winter, +1°C = Summer, Neutral
                                              		    Zone 2°C).
   Dimensions on the wall: 133x93x27 mm
Dimensions in the DIN 503 box: 133x93x18 mm




                                                                                                                                                      17
Speed switches

 Identification        Code
      REC-S           9079110




                                   • Speed switch (Slave).
                                   • It allows to control up to 8 units with only one centralized wall control (1 speed switch for each unit).
                                   • For controls TR, ATR, and TMO-503-SV2.




 Identification        Code
      REC-D           9060139




                                   • Speed switch (Slave) for DTR.
                                   • It allows to control up to 10 units with only one DTR centralized wall control.




Wall electronic control accessories

TME low temperature cut-out thermostat
Suitable for wall controls only (not infra-red remote control).
To be fitted between the coil fins; when connecting the control,
the TME probe cable must be separated from the power supply wires.
To be used with the following controls: TR, ATR, DTR.
It stops the fan when the water temperature is lower than 38°C
and it starts the fan when is higher than 42°C.


 Identification        Code
        TME           3021091



Change-Over CH 15-25
Suitable for wall controls only (not infra-red remote control).
Automatic summer/winter switch
to be installed in contact with the water circuit.
For 2-tube installations only.
To be used with the following controls: TR, ATR, DTR.

                                                                                                                                  RED


 Identification        Code                                                                                                        BLACK

     CH 15-25         9053049


18
                 CONTROL                                            CONTROL                             TR
                                                                                              BR                  ATR                     DTR
                OPERATIONS                                       IDENTIFICATION                                             TMO-503-SV2                               

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