Carrier 62E Installation, Start-Up And Service Instructions Manual page 26

HVAC Supply Fan On
or ERV Timer Option Active
or Stand Alone Short
Pins 31 to 30 and 29 to 28
TRUE
Low Temp
Lock Out
FALSE
Option 51
Lockout
Activated
FALSE
CO2 Level
Not High
Enough in
Space
FALSE
Economizer
Full Open
End Switch
FALSE
Frost Option
Wheel Iced
FALSE
Frost Option
Wheel Iced
VFD
FALSE
ERV Power
Exhaust
Mode
FALSE
Free Cooling
Dry Bulb Enthalpy
Option and W1
and G are Off
FALSE
ERV Wheel On
Supply Blower On
Exhaust Blower On
2-Pos Motor Open
FALSE
TRUE
ERV Wheel Off
Supply Blower Off
Exhaust Blower Off
TRUE
2-Pos Motor Closed
TRUE
TRUE
ERV Wheel On
Supply Blower Off
Exhaust Blower On
2-Pos Motor Open
TRUE
ERV Wheel Modulating
TRUE
Supply Blower On
Exhaust Blower On
2-Pos Motor Open
ERV Wheel Stop/Jog
TRUE
Supply Blower Off
Exhaust Blower On
2-Pos Motor Open
ERV Wheel Stop/Jog
TRUE
Supply Blower On
Exhaust Blower On
2-Pos Motor Open
Wheel Maintenance Indicator On
Supply Blower Maintenance Indicator On
Exhaust Blower Maintenance Indicator On
Fig. 24 — ERV Sequence of Operation
Wheel Maintenance Indicator Off
Supply Blower Maintenance Indicator Off
Exhaust Blower Maintenance Indicator Off
Wheel Maintenance Indicator On
Supply Blower Maintenance Indicator Off
Exhaust Blower Maintenance Indicator On
Wheel Maintenance Indicator On
Supply Blower Maintenance Indicator On
Exhaust Blower Maintenance Indicator On
Wheel Maintenance Indicator On
Supply Blower Maintenance Indicator Off
Exhaust Blower Maintenance Indicator On
Wheel Maintenance Indicator On
Supply Blower Maintenance Indicator On
Exhaust Blower Maintenance Indicator On
26
Preheat available if
pressure or temperature
are correct for usage
a62-540