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7. Change the water temperature set point lower/higher than 27°C. This should cause the unit to change to
air heating mode.
8. If the unit is equipped with an auxiliary air-cooled air conditioning condenser, change the air temperature
set point lower/higher than current air temperature. The unit should change from air heating mode to air
cooling mode. Check to be sure that the remote air cooled condenser fan.
9. Add the calculated additional refrigerant and oil charge. The temperature of the supply air from the unit
should drop after a minute or two. Allow the unit to run for at least ten minutes in this mode. Record the
performance data of Air Cooling.
10. If the unit is equipped with an auxiliary air conditioning condenser, change the water temperature set
point lower/higher than current air temperature. This should cause the unit to change to air cooling and
water heating mode. Allow the unit to run in this mode for at least ten minutes. Record the performance
data of Air Cooling and Water Heating.
11. Adjust the air temperature, relative humidity, and water temperature (with pool heating) set points to
the design values.
12. The start-up procedure is now complete and the unit is fully operational.
7
Operation
7.1 How to Control
After application of power to the control system, image will appear for approximately 10 seconds followed
by an initial startup screen as shown below:
Touch the screen will lead to password enter: The initial user password is 111111
