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MS4 Multi-Stage Electronic Temperature Control

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ВиробникJCI
Код документаms4-multi-stage-electronic-temperature-control
Група обладнанняMS4 Multi‐Stage Temperature Controller
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Мова документаанглійська
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Текст документа

FANs 125, 121
                                                                                        Temperature Controls Section           A
                                                                                                 Installation Bulletin
                                                                                                           Issue Date          1199

                                              INSTALLATION BULLETIN

           MS4 Multi-Stage Electronic Temperature Control

                                                               W iring
 IMPORTANT:            All MS4 controls are designed for
                       use only as operating controls.             ! WARNING: Risk of Electrical Shock.
                       Where an operating control                                       Disconnect power supply before
                       failure would result in personal                                 making electrical connections to
                       injury or loss of property, it is the                            avoid possible electrical shock or
                       responsibility of the installer to                               equipment damage.
                       add devices (safety, limit
                       controls) or systems (alarm,            Follow these wiring guidelines:
                       supervisory systems) that protect
                       against, or warn of, control            •    All wiring must conform to the National Electric
                       failure.                                     Code and local regulations.
                                                               •    Make all wiring connections using adequate gauge
                                                                    copper conductors only. Connectors are rated for
Refer to the MS Series Multi-Stage Electronic                       14-22 AWG wiring.
Temperature Controls Product Bulletin, LIT-125198, for                    Refer to Rating Table for more information.
necessary information on operation and performance
specifications for this product.
                                                                                                    Internal to Control

                                                                             ➀ ➁ ➂ ➃              V1 V2 D S2 SC S1
M
                                                                         C
     ounting the MS4 Control
                                                                           Stage    Stage
                                                                             ➀                    Power
The MS4 control is not position-sensitive but should be                                ➂          Supply
                                                                                Stage                         Process
mounted for convenient wiring and adjustment.                                      ➁            Binary         Sensor
                                                                       Common                    Input Binary / Sensor
To mount the DIN Rail Mount version, install the DIN
                                                                         Auxiliary Temperature Sensor     Common
rail where appropriate. Snap the control onto the rail in
position.
                                                                         Figure 1: MS4 Panel Mount Wiring
To mount the Panel Mount version, ensure that there is
at least 2-3/4 inches (70 mm) space behind the panel.                           Binary Input
Make a cutout 1-3/16 by 2-13/16 inches                                Sensor Common Binary and Sensor Common
(29 by 71 mm). Remove retaining clip from control.                    Process                       Auxiliary
Insert the control into the hole. Install retaining clip and          Sensor                        Temperature Stage ➁
adjust for tightness.                                                                                Sensor
                                                                                   SC D CD S2                     C2      ➁

C anadian DOC Compliance
                                                                         Internal to Control

                                                                         V1 V2          C1   ➀       C4           C3 ➂
This digital apparatus does not exceed the Class A
limits for radio noise emissions from digital apparatus                                 Stage ➀     Stage ➃       Stage ➂
                                                                       Power Supply
set out in the Radio Interference Regulations of the
                                                                                                       See Rating Table
Canadian Department of Communications.                                       Terminal Not Used         for more information.

                                                                       Figure 2: MS4 DIN Rail Mount Wiring
© 1999 Johnson Controls, Inc.                                                                                                         1
  Part No. 24-7664-1717, Rev. A                                                                            www.johnsoncontrols.com
  Code No. LIT-125207
                                                             S etting Up the Stage Control
Use this table, with function So, to compensate for long
sensor wire.                                                 To lock/unlock the unit for programming
                                                                               Press the Enter, Up, and Down buttons in
Table 1: Sensor Wire Size and Length                                           sequence and hold until “- - -” is displayed. Hold
                                                                               for about 10 seconds until the current
 18 AWG        20 AWG        22 AWG              Offset                        temperature is displayed. This toggles the
 300-599 ft    190-374 ft    120 -239 ft         1F°                           keypad between locked and unlocked.
 91-183 m      58-114 m      36-73 m             1C°
 600-899 ft    375-564 ft    240-349 ft          2F°         To run the self test procedure
 183-274 m     114-172 m     73-107 m            2C°
                                                              IMPORTANT: Disconnect loads before beginning self-test
 900+ ft       565+ ft       350+ ft             3F°                     procedure. Cycle power to resume normal
 274+ m        172+ m        107+ m              3C°                     operation.

                                                                               Press the Up and Down buttons in sequence,
Table 2: Rating Table                                                          and hold for 5 seconds.
 Rating Category              120          240         24
                              VAC          VAC         VDC
 Horsepower                   1/4          1/2         -     To select the mode of operation
 Full Load Amperes            5.8          4.9         -                       1. Press and hold the Enter and Down buttons
                                                                                  simultaneously for approximately 7 seconds.
 Locked Rotor Amperes         34.8         29.4        -
 Inductive (non-motor)        8            8           8
 Amperes                                                                       2. Press the Up or Down button until the
                                                                                  desired setting is shown.
 Pilot Duty VA                275          450         -
                                                                                   4d =   Direct (cool),
Relay outputs must not exceed 20 amperes total connected                           4r =   Reverse (heat)
load. Power supply is 24 VAC.                                                      4b =   Deadband,
                                                                                   4i =   Independent Setpoint

F CC Compliance                                                                3. Press the Enter button to save the new
                                                                                  mode of operation.
This equipment has been tested and found to comply
with the limits for a Class A digital device pursuant to     To change the setpoint (modes b, d, and r only)
Part 15 of the FCC Rules. These limits are designed to                         1. Hold the Enter button down for 3 seconds.
provide reasonable protection against harmful                                     The display will change to show the setpoint.
interference when the equipment is operated in a                               2. Press the Up or Down button until you reach
commercial environment. This equipment generates,                                 the new setpoint.
uses, and can radiate radio frequency energy and, if                           3. Press the Enter button to save the new
not installed and used in accordance with the                                     setpoint.
instruction manual, may cause harmful interference to        Note: If you do not press the Enter button after selecting the new
radio communications. Operation of this equipment in               setpoint, it is not saved. The control reverts to old setpoint.
a residential area is likely to cause harmful
interference, in which case the user will be required to     To program other settings (modes b, d, r only) or
correct the interference at his/her own expense.             to program setpoints and settings (mode i only)
                                                                               1. Hold the Enter button down for about

R epair and Replacement                                                           10 seconds. The display will change to HY.
                                                                                  (The display shows S1 if in Mode i.)
Field repair must not be made. In case of defective or                         2. Press the Up or Down button until the
improperly functioning control, contact your nearest                              desired setting is shown.
Johnson Controls/PENN distributor. When requesting                             3. Press the Enter button. The setting’s current
a replacement, refer to the model number found on the                             value is displayed.
data plate of the control.
                                                                               4. Press the Up or Down button until the

D isplay                                                                          desired value is shown.

                                                                               5. Press the Enter button to save the new
Press Up and Down buttons to scroll through process                               value. After 10 seconds of inactivity, the
temperature, Auxiliary Temperature Sensor (ATS)                                   display will return to its normal function.
status, and auxiliary temperature sensor reading.            Note: If you do not press the Enter button after selecting the new
See Table 4. After 15 seconds of inactivity, the display           value, it is not saved. The control reverts to the old value.
shows the process temperature.
2   A—MS4 Multi-Stage Electronic Temperature Control Installation Bulletin
Table 3: Functions and Settings
Mode                                 4d = Direct      4r = Reverse         4b = Deadband         4i = Independent Setpoint                  d
Setting                                                      Description                                   Setting Range              Default
SI Setpoint                          Modes d, r, b: relay cut-off point                                 -40 to 99°F                   —
                                     Mode i I:      heating independent setpoint                        (-40 to 70°C)
HI   Differential (Hysteresis)       Temperature difference relative to setpoint or offset at which     1 to 9F° (1 to 9C°)           5
                                     the load is switched On or Off
S2 Setpoint 2 (Offset)               Modes d, r:   difference between setpoint and Stage 2              d, r: 1 to 40F° (1 to 40C°)   5
                                     Mode b:       deadband (centered on setpoint)                      b:    2 to 40F° (2 to 40C°)
                                     Mode I:       cooling independent setpoint                         I:    LL to HL
H2 Differential (Hysteresis) 2 See Differential (hysteresis)                                            1 to 9F° (1 to 9C°)           5
S3 Setpoint 3 (Offset)               Modes d, r, I: difference between setpoint and Stage 3             1 to 40F° (1 to 40C°)         5
                                     Mode b:        difference between deadband and Stage 3
H3 Differential (Hysteresis) 3 See Differential (hysteresis)                                            1 to 9F° (1 to 9C°)           5
S4 Setpoint 4 (Offset)               Modes d, r:   difference between setpoint and Stage 4              1 to 40F° (1 to 40C°)         5
                                     Mode b:       difference between deadband and Stage 4
                                     Mode i:       difference between Setpoint 2 and Stage 4
H4 Differential (Hysteresis) 4 See Differential (hysteresis)                                            1 to 9F° (1 to 9C°)           5
LL Low Setpoint Stop                 Lower limit of end-user setpoint adjustment                        -40F° (-40C°) to HL           32
HL High Setpoint Stop                Upper limit of end-user setpoint adjustment                        LL to 99°F (70°C)             90
Cc Anti-short Cycle Timer,           Time delay between equipment On cycles for cooling stages          0 to 9 minutes                2
   Cool
CH Anti-short Cycle Timer,           Time delay between equipment On cycles for heating stages          0 to 9 minutes                0
   Heat
rt   Soft Start                      Rate at which the process temperature approaches the               0 to 99 minutes/degrees       10
                                     setpoint
AH High Temperature Alarm High temperature alarm setpoint relative to main setpoint                     0 to 50F° (0 to 50C°)         15
                                                                                                        above setpoint
AL Low Temperature Alarm             Low temperature alarm setpoint relative to main setpoint           -50 to 0F° (-50 to 0C°)       -15
                                                                                                        below setpoint
Ad Alarm Differential                Temperature difference relative to high and low alarms at          1 to 9F° (1 to 9C°)           5
                                     which alarm output is switched Off
At Alarm Time Delay                  Delay between alarm detection and activation                       0 to 99 minutes               15
So Sensor Offset                     Compensate for long sensor leads or sensor location                -20 to +20F°(-20 to +20C°)    0
Un Units Used                        Temperature units used                                             0 = °C     1 = °F             1
PU Display Refresh Rate              Time delay between display refreshes                               1 to 99 seconds               1
IF   Binary Input Function           Configuration for normally closed binary input                     0 = No binary input           0
                                                                                                        1 = Shutoff/alarm
                                                                                                            signaling
                                                                                                        2 = Setback
                                                                                                        3 = Remote shutoff
Sb Setback                           Value of setpoint shift when binary input is open and IF=2         0 to 20F° (0 to 20C°)         10
Id   Binary Input Time Delay         Time between binary input detection and enabling of IF             0 to 99 minutes               0

iS   Interstage Time Delay           Minimum amount of time between two successive stages               3 to 90 seconds               3

Lc Heating Reset                     Setpoint is lowered when Auxiliary Temperature Sensor (ATS)        0 to 6F° (0 to 6C°)           4
                                     reading is higher than the setpoint and the difference exceeds
Note:   Function is available only
                                     the Non-compensated Band (NCB)
        when ATS is connected.
                                     Degrees of reset = [ATS– (setpoint + NCB)]/Lc
Uc Cooling Reset                     Setpoint is lowered when Auxiliary Temperature Sensor (ATS)        0 to 6F° (0 to 6C°)           4
Note:   Function is available only   reading is lower than the setpoint and the difference exceeds
        when ATS is connected.       the Non-compensated Band (NCB)
                                     Degrees of reset = [ATS– (setpoint – NCB)]/Uc
NC Non-compensated Band Temperature range over which reset does not take place.                         0 to 20 F°(C°)                8
                                     This should be the same as Setpoint 2 in deadband mode.
Note:   Function is available only
        when ATS is connected.

                                               A—MS4 Multi-Stage Electronic Temperature Control Installation Bulletin                           3
A larm and Status Codes
Table 4: Status Codes (steady on display)
 Status Code                   Indicates
 F2                            Auxiliary Temperature Sensor is not connected.
 On                            Binary Input is closed.
 OF                            Binary Input is open.

Table 5: Fault/Alarm Codes (flashing on display)
 Error Code                                                            System Status
 EE Program failure; control must be replaced.                         Alarm message displays, other outputs off.
 FI    Indicates an open or shorted process temperature sensor.        Alarm message displays. Correct problem and cycle power to reset.
 AI    Binary input (IF) Option 1 selected and binary input open for   Control output is switched off; alarm message displays. Correct
       longer than time delay (id).                                    condition to reset. Uses Soft Start option.
 DF Binary input (IF) Option 3 selected and binary input open.         Control output is switched off. Close binary input to reset. Does
                                                                       not use Soft Start option.
 HI    Temperature has reached or exceeded (setpoint + AH).            Alarm message displays. Correct condition to reset.
 LO Temperature has reached or fallen below (setpoint - AL).           Alarm message displays. Correct condition to reset.

O rdering Information
Table 6: Specifications
 Power Requirements                3.7 VA @ 24 VAC, 50/60 Hz, Class 2 (20-30 VAC)
 Ambient Conditions                Operating: +14 to +140oF (-10 to +60oC); 0 to 95% RH (non-condensing)
                                   Storage: -22 to +176oF (-30 to +80oC); 0 to 95% RH (non-condensing)
 Accuracy                          + 1.8 Fo (+ 1Co )
 Agency Listings                   UL Recognized: File E194024, CCN XAPX2
                                   Canadian UL Recognized: File E194024, CCN XAPX8
                                   FCC Compliant per Class A Digital Device, Part 15
                                   Canadian DOC Compliant per Class A, Radio Interference Regulations

Table 7: Ordering Information
 Item Code                         Description
 MS4DR24T-11C                      MS4 DIN Rail Mount Control; A99BB-200C sensor included
 MS4PM24T-11C                      MS4 Panel Mount Control; A99BB-200C sensor included
 A99BB-200C                        A99B Temperature Sensor, cable length: 6-1/2 ft (2 m)

The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult Johnson Controls/Penn Refrigeration Application Engineering at (414) 274-5535. Johnson Controls, Inc. shall not be
liable for damages resulting from misapplication or misuse of its products.

Controls Group
507 E. Michigan Street
P.O. Box 423                                                                                                              Printed in U.S.A.
Milwaukee, WI 53201                                                                                               www.johnsoncontrols.com

4     A—MS4 Multi-Stage Electronic Temperature Control Installation Bulletin

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