Johnson Controls MS2 Installation Bulletin page 4

Table 3: Functions and Settings
Mode
Setting
SI
Setpoint
HI Differential (Hysteresis)
S2 Setpoint 2 (Offset)
H2 Differential (Hysteresis) 2 See Differential (hysteresis)
LL Low Setpoint Stop
HL High Setpoint Stop
Cc Anti-short Cycle Timer,
Cool
CH Anti-short Cycle Timer,
Heat
rt
Soft Start
AH High Temperature Alarm
AL Low Temperature Alarm
Ad Alarm Differential
At Alarm Time Delay
So Sensor Offset
Un Units Used
PU Display Refresh Rate
IF
Binary Input Function
Sb Setback
Id
Binary Input Time Delay
iS
Interstage Time Delay
R
epair and Replacement
Field repair must not be made. In case of defective or
improperly functioning control, contact your nearest
authorized Johnson Controls/PENN distributor.
4 A—MS2 Two Stage Electronic Temperature Control Installation Bulletin
2d = Direct 2r = Reverse 2b = Deadband 2i = Independent Setpoint
Description
Modes d, r, b: relay cut-off point
Mode i: heating independent setpoint
Temperature difference relative to setpoint or offset at
which the load is switched On or Off
Modes d, r: difference between setpoint and Stage 2
Mode b: deadband (centered on setpoint)
Mode I: cooling independent setpoint
Lower limit of end-user setpoint adjustment
Upper limit of end-user setpoint adjustment
Time delay between equipment On cycles for cooling
stages
Time delay between equipment On cycles for heating
stages
Rate at which process temperature approaches setpoint
High temperature alarm setpoint relative to main setpoint
Low temperature alarm setpoint relative to main setpoint
Temperature difference relative to high and low alarms at
which alarm output is switched Off
Delay between alarm detection and activation
Compensates for long sensor leads or sensor location
Temperature units used
Time delay between display refreshes
Configuration for normally closed binary input
Value of setpoint shift when binary input is open and IF=2 0 to 20F° (0 to 20C°)
Time between binary input detection and enabling of IF
Minimum amount of time between two successive stages
When requesting a replacement, reference the model
number found on the data plate of the control.
d
Setting Range Default
—
-40 to 99°F
(-40 to 70°C)
1 to 9F° (1 to 9C°) 5
d, r: 1 to 40F° 5
(1 to 40C°)
b: 2 to 40F°
(2 to 40C°)
LL to HL
I:
1 to 9F° (1 to 9C°) 5
-40F° (-40C°) to HL
32
LL to 99°F (70°C)
90
0 to 9 minutes 2
0 to 9 minutes 0
0 to 99 10
minutes/degrees
0 to 50F° (0 to 50C°) 15
above setpoint
-50 to 0F° (-50 to 0C°) -15
below setpoint
1 to 9F° (1 to 9C°) 5
0 to 99 minutes 15
-20 to +20F° 0
(-20 to +20C°)
0 = °C 1 = °F 1
1 to 99 seconds 1
0 = No binary input 0
1 = Shutoff/alarm
signaling
2 = Setback
3 = Remote shutoff
10
0 to 99 minutes 0
3 to 90 seconds 3