Johnson Controls MS2 Installation Bulletin page 5

F
ault/Alarm Codes
Table 4: Status Codes (steady on display)
Status Code
On
OF
Table 5: Fault/Alarm Codes
Error Code (Flashing on Display)
EE Program failure; control must be replaced.
FI
Indicates an open or shorted temperature sensor.
AI
Binary input (IF) Option 1 selected and binary input open
for longer than time delay (id).
DF Binary input (IF) Option 3 is selected and binary input open.
HI Temperature has reached or exceeded (setpoint + AH).
LO Temperature has reached or fallen below (setpoint - AL).
O
rdering Information
Table 6: Specifications
Power Requirements
Ambient Conditions
Accuracy
Agency Listings
Table 7: Ordering Information
Item Code
MS2DR24T-11C
MS2PM24T-11C
A99BB-200C
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
Milwaukee, WI 53201
Indicates
Binary Input is closed.
Binary Input is open.
3.7 VA @ 24 VAC, 50/60 Hz, Class 2 (20-30 VAC)
Operating: +14 to +140°F (-10 to +60°C); 0 to 95% RH (non-condensing)
Storage: -22 to +176°F (-30 to +80°C); 0 to 95% RH (non-condensing)
+1.8 F° (+1C°)
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
Description
MS2 DIN Rail Mount Control; A99BB-200C sensor included
MS2 Panel Mount Control; A99BB-200C sensor included
A99B Temperature Sensor; Cable length 6-1/2 ft (2 m)
A—MS2 Two Stage Electronic Temperature Control Installation Bulletin
System Status
Alarm message displays, other outputs off.
Alarm message displays. Correct problem and cycle
power to reset.
Control output is switched off; alarm message displays.
Correct condition to reset.
Control output is switched off. Close binary input to reset.
Alarm message displays. Correct condition to reset.
Alarm message displays. Correct condition to reset.
Printed in U.S.A
www.johnsoncontrols.com
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