OMEGA-VSHPe.F-IOM-2205
10
___All cutting, sanding, drywalling, patching work is
complete.
___Unit blower spins freely.
___Thermostat is in the OFF position.
___Room temperature is above 60
o
F.
INITIAL UNIT START
-
UP
1.
Close disconnect switch.
2.
Set thermostat to a high setting (above current room
temperature), set system to COOL with fan on AU-
TO. The compressor should not run.
3.
Lower the thermostat temperature setting until the
fan and compressor energize. Verify the following
results:
•
Leaving water temperature (LWT) in the heat ex-
changer water coil is warmer than the entering wa-
ter temperature (EWT) by approximately 9
o
F—
12
o
F.
•
Blower is running smoothly.
•
ERV fans are running on a low speed.
•
Compressor and blower amps are within nameplate
data.
•
Suction line is cool and no frosting is forming in the
refrigeration circuit.
4.
Set thermostat to the OFF position. Unit compressor
and fan should stop running.
5.
Allow the system to equalize for approximately 5
minutes.
6.
Set thermostat to the lowest setting and switch to
the HEAT position.
7.
Adjust thermostat temperature higher until the fan
and compressor energize. The following should
occur:
•
Warm air will flow from the supply register.
•
Leaving water temperature (LWT) in the heat ex-
changer water coil is cooler than the entering water
temperature (EWT) by approximately 5
o
F—
9
o
F.
•
Blower and compressor operation is smooth and no
frost development is visible in the refrigeration cir-
cuit.
8.
Set the thermostat to the desired temperature.
9.
Turn on bathroom exhaust fan. Verify unit ERV fans
are running on high speed.
10.
Turn off bathroom exhaust fan and verify unit ERV
fans are operating on low fan speed.
11.
Check for any water leaks at the hose connections.
