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Installation Manual VMH SerieS Heat Controller, Inc.
Test running
Perform test operation after completing gas leak check at the flare nut connections and
electrical safety check.
Check that all tubing and wiring have been properly connected.
Check that the gas and liquid side service valves are fully open.
1. Connect the power, press the ON/OFF button on the remote controller to turn the unit on.
2. Use the MODE button to select COOL, HEAT, AUTO and FAN to check if all the functions
works well.
3. When the amient temperature is too low(lower than 17 C), the unit cannot be controlled by
the remote controller to run at cooling mode, manual operation can be taken. Manual
operation is used only when the remote controller is disable or maintenance necessary.
Press the Manual control button to select the AUTO or COOL, the unit will operate under
Forced AUTO or COOL mode(see User Manual for details).
4. The test operation should last about 30 minutes.
Hold the panel sides and lift the panel up to an angle until it remains fixed with a clicking
sound.
Manual control
Button
31
TEST RUNNING
Fig.65
Manual control
button
AUTO/COOL
Testing the System
2. Use the MODE button to select COOL, HEAT, AUTO and FAN to check if all the functions work
well.
3. When the ambient temperature is too low(lower than 62.2°F (17°C)), the unit cannot be controlled
by the remote controller to run in cooling mode, manual operation can be used. Manual opera-
tion is used only when the remote controller is disable or maintenance necessary.