Greenheck ERCH-20 Installation, Operation And Maintenance Manual page 33

Heating System / Electric Heat
Pre-Heater L1-L2
Post-Heater L1-L2
Cooling System
Outdoor Air Temperature
Return Air Temperature
A. Discharge Pressure
B. Discharge Pressure Converted to
Temperature
C. Liquid Line Temperature
D. Subcooling (B-C)
Should be between 12º and 17ºF
E. Suction Line Pressure
F. Suction Line Temperature
G. Suction Pressure Converted to
Temperature
H. Superheat (F-G)
Should be between 8º and 12ºF
Water In
Water Out
Hot Gas Bypass Operational
(Not present on digital scroll compressors)
Suction Pressure Set Point
Compressor Sight Glass
Oil Level
Oil Foaming
®
Volts
L1 Amps
Temp. Rise
Volts
L1 Amps
Temp. Rise
Deg F
Deg F
Condensing Fan 1
L1 ____________ Amps
L2 ____________ Amps
L3 ____________ Amps
Compressor 1
Hot gas reheat valve
closed
L1 ____________ Amps
L2 ____________ Amps
L3 ____________ Amps
Crankcase
heater _________ Amps
Cooling HP Heating
Yes / No
Yes / No
L2-L3
L2
L2-L3
L2
Outdoor Air Relative Humidity
Return Air Relative Humidity
Condensing Fan 2
L1 ____________ Amps
L2 ____________ Amps
L3 ____________ Amps
Compressor 1
Hot gas reheat valve
open
L1 ____________ Amps
L2 ____________ Amps
L3 ____________ Amps
Crankcase
heater _________ Amps
Cooling
Yes / No Yes / No
Yes / No Yes / No
Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
Volts L1-L3
Amps L3
Volts L1-L3
Amps L3
Condensing Fan 3
L1 ____________ Amps
L2 ____________ Amps
L3 ____________ Amps
Compressor 2
L1 ____________ Amps
L2 ____________ Amps
L3 ____________ Amps
Crankcase
heater _________ Amps
Cooling
Yes / No
Yes / No
Volts
Amps
Volts
Amps
% RH
% RH
HP Heating
Yes / No
Yes / No
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