16
MODINE CONTROLS SYSTEM MANUAL
ClassMate and SchoolMate Models
AIR74-525.1
Input/Output Sub Menu
The following table describes the menu parameters (NOTE: changes in shading indicates change to next screen by using
the UP or DOWN buttons):
Main Status Screen = Input/Output
SCREEN NAME PARAMETER DESCRIPTION INPUT FACTORY VALUE RANGE
UNITS
a. Analog Inputs
Return Air U1 Actual Value - °F / °C
Indoor coil U2 Actual Value - °F / °C
Outside coil U3 Actual Value - °F / °C
Coax Water out (Schoolmate units) U3 Actual Value - °F / °C
Supply Air U4 Actual Value - °F / °C
CO2 (optional) U5 Actual Value 0-2000 ppm
OA Humidity (Optional) U6 Actual Value 0-100 %RH
Inside Humidity (Optional) U7 Actual Value 0-100 %RH
OA Temperatures (Optional) U8 Actual Value - °F / °C
Temp. adjust (Optional) U10 Actual Value - °F / °C
LL Pressure (Optional) U11 Actual Value 0-650 PSI
Faceless Wall Stat
Serial Probe 128 Actual Value - -
Temperature - Actual Value - °F / °C
Humidity - Actual Value 0-100 %
Dew Point - Actual Value - °F / °C
b. Digital Inputs
Condensate Float DI1 Actual Value Closed or Open -
Freeze Stat DI2 Actual Value Closed or Open -
Supply Fan DI3 Actual Value Closed or Open -
Outdoor fan DI4 Actual Value Closed or Open -
Filter DI5 Actual Value Closed or Open -
Occupied (Optional) DI6 Actual Value Closed or Open -
Low pressure DI7 Actual Value Closed or Open -
High Pressure DI8 Actual Value Closed or Open -
c. Relay Outputs
Supply Fan High NO1 Actual Value ON/OFF -
Hot Gas Re-Heat (Optional) OUT 2 Actual Value ON/OFF -
Reversing Valve (Heatpump) OUT 3 Actual Value ON/OFF -
Compressor OUT 4 Actual Value ON/OFF -
Compressor CCS OUT 5 Actual Value ON/OFF -
Supply Fan NO6 Actual Value ON/OFF -
Electric Heat 1 (Optional) NO7 Actual Value ON/OFF -
Electric Heat 2 (Optional) NO8 Actual Value ON/OFF -
Outside Air damper NO9 Actual Value ON/OFF -
Exhaust Fan (Optional) NO10 Actual Value ON/OFF -
ERM Wheel (Optional) NO11 Actual Value ON/OFF -
Exhaust Vent Fan NO12 Actual Value ON/OFF -
Outside Air Vent Fan NO13 Actual Value ON/OFF -
d. Analog Output
Economizer (Optional) Y1 Actual Value 0-10 VDC
Hotwater (Optional) Y2 Actual Value 0-10 VDC
Outdoor Fan (ClassMate Units) Y3 Actual Value 0-10 VDC
ERM Fans (Optional) Y4 Actual Value 0-10 VDC
Baseboard Heat (Optional) Y5 Actual Value 0-10 VDC
Coax Water Valve (Schoolmate Units) Y5 Actual Value 0-10 VDC
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