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MODINE CONTROLS SYSTEM MANUAL
ClassMate and SchoolMate Models
AIR74-525.1
Service Sub Menu (continued)
Main Status Screen = Service = Service Settings= Control Settings
( requires password PW1)
The following table describes the menu parameters (NOTE: change in shading indicates change to next screen by using
the UP or DOWN buttons):
Control Settings (continued)
SCREEN NAME PARAMETER DESCRIPTION FACTORY VALUE RANGE UNITS
Manual Control Reset
(If Enable is on, the unit will revert to Full
Auto control afar the time period has elapsed)
Enable: Yes Yes or No -
Time: 30 mins 0m-500m Minutes
Compressor Delays
Minimum ON Time: 10s 10s-999s Seconds
Minimum OFF Time: 10s 10s-999s Seconds
Stage Delay: 10s 10s-999s Seconds
Compressor Lockouts
(“Low Heating” and “Off Diff” settings are
enabled with Classmate Units with Heatpump)
Low Cooling: 50.0°F 50.0-99.9°F °F / °C
Off Diff: 5.0°F 0.0-9.9°F °F / °C
Low Heating: 28.0°F 17.0-99.9°F °F / °C
Off Diff: 2.0°F 0.0-9.9°F °F / °C
Dehum Control
Dehum Delays
Minimum ON Time: 5m 0m-30m Minutes
C.F. Low Speed: 300s 0s-300s Seconds
Dehum Control Outside Air Temperature For
High Speed Compressor
Enable: 85.0°F 0-999.9 °F / °C
Disable: 84.0°F 0-999.9 °F / °C
Dehum Control Return Air Temperature For
High Speed Compressor
Enable: 72.0°F 0-999.9 °F / °C
Disable: 71.0°F 0-999.9 °F / °C
Dehum Control Return Air Humidity For High
Speed Compressor
Enable: 60% 0-100% %
Disable: 55% 0-100% %
Defrost
(Screen Visible on Classmate Units with
Heatpump.
Note :Screen will display “Defrost:
Defrosting…” if unit is in Defrost, otherwise
just “Defrost:”)
Start Temp: 28.0°F 20.0°F-35.0°F °F / °C
End Temp: 50.0°F 40°F-99.9°F °F / °C
Max Time: 10m 0m-999m Minutes
Cycle: 45m 30m-90m Minutes
Defrost Count: Actual Value - Minutes
Manual: No Yes or No -
OD Fan: Condenser Fan
(Screen visible with Classmate Models CMD
and CMP. “Med speed HT” and “High Speed
HT” Visible on Heatpump Units.)
Low Speed: 37%-47% (Varries on unit) 0.0%-100.0% %
Med Speed: 46%-80% (Varries on unit) 0.0%-100.0% %
Med Speed HT (Heat): 48%-63% (Varries on unit) 0.0%-100.0% %
High Speed: 58%-90% (Varries on unit) 0.0%-100.0% %
High Speed HT (Heat): 52%-75% (Varries on unit) 0.0%-100.0% %
OD Fan: “Condenser Fan”
(Screen Visible only on Classmate Units with
a Condenser Fan)
Pressure Set 310psig 0-999psig psig
Min Speed: 5.0% 0.0%-100.0% %
OA Fan Start Percentage: 100% 0%-999% %
OA Fan Start Time: 15s 0s-99s seconds
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