MS1 One Stage Electronic Temperature Control

Вид документа	Інструкція з монтажу
Виробник	JCI
Код документа	ms1-one-stage-electronic-temperature-control
Група обладнання	MS1 Single-Stage Temperature Control
Сторінок	4
Мова документа	англійська
Розмір файлу	0.2 МБ

Текст документа

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

INSTALLATION BULLETIN

MS1 One Stage Electronic Temperature Control

W iring
IMPORTANT: All MS1 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,
supervisory systems) that protect Follow these wiring guidelines:
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
Refer to the MS Series Multi-Stage Electronic
copper conductors only. Connectors are rated for
Temperature Controls Product Bulletin, LIT-125198, for
14-22 AWG wiring.
necessary information on operation and performance
specifications for this product. Alarm
+
Process Sensor -
Sensor Common

M ounting S1 SC A+ A-

Terminal Not Used
The MS1 control is not position-sensitive but should be
Internal to
mounted for convenient wiring and adjustment. To Control
mount the MR1 DIN Rail Mount, install the DIN rail V1 V2 C1 ➀
where appropriate. Snap the control onto the rail in Refer to Rating Table
position. Power Stage ➀ for more information.
Supply

Figure 1: MS1 DIN Rail Mount Wiring

© 1999 Johnson Controls, Inc. 1
Part No. 24-7664-1733, Rev. A www.johnsoncontrols.com
Code No. LIT-125211
S etting Up the Stage Control
Use this table, with function So, to compensate for long To lock/unlock the unit for programming
sensor leads.
Press the Enter, Up, and Down buttons in
sequence and hold until “- - -” is displayed. Hold
Table 1: Sensor Wire Size and Length for about 10 seconds until the current
Wire Size and Length temperature is displayed. This toggles the
Offset keypad between locked and unlocked.
18 AWG 20 AWG 22 AWG
To run the self test procedure
300-599 ft 190-374 ft 120 -239 ft 1F°
91-183 m 58-114 m 36-73 m 1C° IMPORTANT: Disconnect loads before beginning self-test
procedure. Cycle power to resume normal
600-899 ft 375-564 ft 240-349 ft 2F° operation.
183-274 m 114-172 m 73-107 m 2C°
900+ ft 565+ ft 350+ ft 3F° Press the Up and Down buttons in sequence,
274+ m 172+ m 107+ m 3C° and hold for 5 seconds.

To select the mode of operation
Table 2: Rating Table 1. Press and hold the Enter and Down buttons
Rating Category 120 240 24 simultaneously for approximately 7 seconds.
VAC VAC VDC
2. Press the Up or Down button until the
Horsepower 1/4 1/2 - desired setting is shown.
Full Load Amperes 5.8 4.9 - 1d = Direct (cool), 1r = Reverse (heat)
Locked Rotor Amperes 34.8 29.4 - 3. Press the Enter button to save the new mode
of operation.
Inductive (non-motor) 8 8 8
Amperes
Pilot Duty VA 275 450 - To change the setpoint
1. Hold the Enter button down for 3 seconds.
Alarm circuit rated at 40 VDC, 100 mA maximum. The display will change to show the setpoint.
Power supply is 24 VAC.
2. Press the Up or Down button until you reach
Alarm requires separate power source. the new setpoint.

3. Press the Enter button to save the new
setpoint.
Note: If you do not press the Enter button after selecting the new
setpoint, it is not saved. The control reverts to old setpoint.

To program other values
1. Hold the Enter button down for about
10 seconds. The display will change to HY.

2. Press the Up or Down button until the
desired setting is shown.

3. Press the Enter button. The setting’s current
value is displayed.

4. Press the Up or Down button until the
desired value is shown.

5. Press the Enter button to save the new
value. After 10 seconds of inactivity, the
display will return to its normal function.
Note: If you do not press the Enter button after selecting the new
value, it is not saved. The control reverts to the old value.

2 A—MS1 One Stage Electronic Temperature Control Installation Bulletin
Table 3: Functions and Settings
Mode 1d = Direct (Cool) 1r = Reverse (Heat) d

Setting Description Setting Range Default
SI Setpoint Relay cut-off point -40 to 99°F —
(-40 to 70°C)
HI Differential (Hysteresis) Temperature difference relative to setpoint at 1 to 9F° (1 to 9C°) 5
which the load is switched On
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 0 to 9 minutes 2
Cool cooling stages
CH Anti-short Cycle Timer, Time delay between equipment On cycles for 0 to 9 minutes 0
Heat heating stages
rt Soft Start Rate at which the process temperature 0 to 99 minutes/degrees 10
approaches the setpoint
AH High Temperature Alarm High temperature alarm setpoint relative to 0 to 50F° (0 to 50C°) 15
main setpoint above setpoint
AL Low Temperature Alarm Low temperature alarm setpoint relative to -50 to 0F° (-50 to 0C°) -15
main setpoint below setpoint
Ad Alarm Differential Temperature difference relative to high and low 1 to 9F° (1 to 9C°) 5
alarms at 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 -20 to +20F° (-20 to +20C°) 0
location
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

R epair and Replacement F CC Compliance
Field repair must not be made. In case of defective This equipment has been tested and found to
or improperly functioning control, contact your comply with the limits for a Class A digital device
nearest authorized Johnson Controls/PENN pursuant to Part 15 of the FCC Rules. These limits
distributor. When requesting a replacement, refer to are designed to provide reasonable protection
the model number found on the data plate of the against harmful interference when the equipment is
control. operated in a commercial environment. This
equipment generates, uses, and can radiate radio
C anadian DOC Compliance frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
This digital apparatus does not exceed the Class A harmful interference to radio communications.
limits for radio noise emissions from digital Operation of this equipment in a residential area is
apparatus set out in the Radio Interference likely to cause harmful interference, in which case
Regulations of the Canadian Department of the user will be required to correct the interference at
Communications. his/her own expense.

A—MS1 One Stage Electronic Temperature Control Installation Bulletin 3
F ault/Alarm Codes
Table 4: Fault/Alarm Codes
Error Code (Flashing on Display) System Status

EE Program failure; control must be replaced. Alarm message displays, other outputs off.
FI Indicates an open or shorted process temperature Alarm message displays. Correct problem and cycle power to
sensor. reset.
HI Temperature has reached or exceeded Alarm message displays. Correct condition to reset.
(setpoint + AH).
LO Temperature has reached or fallen below Alarm message displays. Correct condition to reset.
(setpoint - AL).

O rdering Information
Table 5: Specifications
Power Requirements 3.7 VA @ 24 VAC, 50/60 Hz, Class 2 (20-30 VAC)
o o
Ambient Conditions Operating: +14 to +140 F (-10 to +60 C); 0 to 95% RH (non-condensing)
o o
Storage: -22 to +176 F (-30 to +80 C); 0 to 95% RH (non-condensing)
o o
Accuracy +1.8 F (+ 1C )

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 6: Ordering Information
Item Code Description
MS1DR24T-11C MS1 DIN Rail 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—MS1 One Stage Electronic Temperature Control Installation Bulletin

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