Return Air Temperature; Return Air Relative Humidity - Bosch FHP RT-20 Installation, Operation And Maintenance Manual

14. At this time, verify that both compressors are
running and record intake and discharge water
temperatures. Record the results on the Start-Up
Checklist.
If only the lead compressor is running, force the
second compressor into operation by temporarily
installing jumpers on the terminal strip from R to
Y1 and R to Y2. Record intake and discharge
temperatures after five minutes of operation with
both compressors running.
15. Verify correct operation of optionally installed
accessories such as motorized dampers, electric
heaters, hot water coils, etc. It may not be
possible to test all options (e.g. electric preheater
may not function till ambient temperatures drop).
Make note on the Startup Checklist of any tests
that could not be completed.
Instruct owner on unit and thermostat / controller
operation.
WARNING
All motor(s) / compressor(s) have been checked for
rotation. If blower rotation is incorrect, wiring must
be changed at the disconnect to ensure all motor(s) /
compressors are corrected.
Operation of scroll compressor(s) in this unit are
directional and will be damaged if run with the wrong
direction.
• Allow the unit to run until the refrigerant system
stabilizes. Approximately 1-2 minutes.
• Take the following measurements while the unit is
running to ensure proper operation.
Start-Up Checklist
Check line voltage at unit disconnect
_______ L1-L2 volts
_______ L2-L3 volts
_______ L1-L3 volts
Fan RPM
_______ Supply Fan
Correct fan rotation direction
Supply Fan
Exhaust Fan
Motor Amp Draw
• Energy Wheel
_______ L1 amps
_______ L2 amps
_______ L3 amps
• Compressor
_______ L1 amps
_______ L2 amps
_______ L3 amps
_______ Crankcase Heater
38 Model RT Energy Recovery Unit
______ Exhaust Fan
Yes / No
Yes / No
• Compressor
_______ L1 amps
_______ L2 amps
_______ L3 amps
_______ Crankcase Heater
Outdoor Air Temperature
_______ Deg F
Return Air Temperature
_______ Deg F
Outdoor Air Relative Humidity
_______ % RH
Return Air Relative Humidity
_______ % RH
Superheat
_______ Deg F
Should be between 8° and 12°F
Subcooling
_______ Deg F
Should be between 12° and 17°F
Discharge Pressure
_______ PSIG
Should be between 300 and 500 PSIG
for R-410A
Suction Line Pressure
_______ PSIG
Should be between 100 and 135 PSIG
for R-410A
Liquid Line Temperature
_______ Deg F
Suction Line Temperature
_______ Deg F
Hot Gas Bypass Operational
_______ Yes / No
Intake water temperature
_______ Deg F
Discharge water temperature after five (5) minutes
operation (choose one)
_______ Heat Mode ______ Cooling Mode