22
Test Running
Preparation before Connecting the Power
Operation after Connecting the Power
1. Never power on the unit until all the installation work has been done.
2. All the control circuit and wiring has been connected correctly and is secure. Valves on the
gas and liquid line should be completely open.
3. Check if the unit appearance and piping system has been damaged during installation.
4. Check if the terminals are loose and the phases are correct.
1. If all the above preparations are complete, power on the unit.
2. If the outside temperature is more than 86° F (30° C), heating mode can’t be enabled.
3. Before test operation, make sure unit is power on and compressor has been preheated for
more than 8 hours.
4. Make sure the units can run normally.
Installation
