Sequence Of Operation - Trane GECA -006 Installation Owner Diagnostics

Initial Unit Start-up
Note:
Start-up for the Tracer
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 compres-
sor should NOT run.
3.Reduce the thermostat setting until the compressor, reversing valve, solenoid valve,
and loop pump 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 refriger-
ant circuit.
4.Check the cooling refrigerant pressures against values in Table 1. (Page 31).
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 Table 1. (Page 31)
11.Set the thermostat to maintain the desired space temperature.
12.Instruct the owner on system operation.
30
Sequence of
Operation
ZN510 Controller may be found in WSHP-IOP-2.
TM
GECA-SVX01B-EN