Trane GECK006 - Start-Up; Initial Unit Start-Up; Start-Up Checklist and Log; Operating Pressures

WSHP-SVX022A-EN
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Start-Up
Initial Unit Start-up
Note: Start-up for wall-mounted thermostats found in
thermostat manufacturer literature.
Start-up with the conventional thermostat is included
below:
1. Set the thermostat to the highest position.
2. Set the thermostat system switch to COOL with the fan
control to AUTO. The compressor should NOT run.
3. Reduce the thermostat setting until the compressor,
reversing valve and isolation valve (if used) are
energized.
Adjust water flow utilizing pressure/temperature plugs
and comparing to tables contained in specification
sheet data. Water leaving the heat exchanger should
be warmer than the entering water temperature
(approximately 9-12°F); blower operation should be
smooth; compressor and blower amps should be within
data plate ratings; the suction line should be cool with
no frost observed in the refrigerant circuit.
4. Check the cooling refrigerant pressures against values
in .
5. Turn the thermostat system switch to the OFF position.
Unit should stop running and the reversing valve should
de-energize.
6. Leave unit off for approximately FIVE minutes to allow
for pressure equalization.
7. Turn the thermostat to the lowest setting.
8. Set the thermostat system switch to the HEAT position.
9. Adjust the temperature setting upward until the unit is
energized. Warm air should blow from the register. A
water temperature decrease of approximately 5-9°F
leaving the heat exchanger should be noted. The
blower and compressor operation should be smooth
with no frost observed in the refrigeration circuit.
10. Check the heating refrigerant pressures against values
in .
11. Set the thermostat to maintain the desired space
temperature.
12. Instruct the owner on system operation.
In order to minimize troubleshooting and costly system
failures, complete the following checks and data entries
before the system is put into full operation.
MODE Heat Cool
Entering fluid temperature
Leaving fluid temperature
MODE Heat Cool
Temperature differential
Return-air temperature DB/WB
Supply-air temperature DB/WB
Temperature differential
Water coil heat exchanger (Water
Pressure IN)
Water coil heat exchanger (Water
Pressure OUT)
Pressure Differential
COMPRESSOR
Amps
Volts
Discharge line temperature (after 10
minutes)
Start-up Checklist and Log
Installing Contractor: Use this checklist to thoroughly
checkout the system and units before and during start-up.
(This form need not be returned to the factory unless
requested during technical service support).
Job Number: _______________________
Model Number: ____________________
Date: ______________________________
Serial Number: _____________________
In order to minimize troubleshooting and costly system
failures, complete the following checks and data entries
before the system is put into full operation.
Operating Pressures
There are many variables (airflow, air temperatures) in an
air conditioning system that will affect operating refrigerant
pressures and temperatures. The charts below shows
approximate conditions and is based on air flow at the
rated SCFM, entering air at 80.6°F(DB), 66.2°F(WB) in
cooling, 68°F(DB) in heating. (+)Heating data with 35°F
EWT is based on the use of an anti-freeze solution having
a freezing point 20°F lower than the minimum expected
entering temperature.