Commissioning; Operation - Rheem RTHP009 Installation Maintenance And Service Manual

SECTION 2
The Rheem Thermal heat pump is fully charged with refrigerant. The following checks should be
carried out:
1. Installation and operation instructions should be read prior to commissioning.
2. The unit should have unrestricted supply of fresh air to the coil and exhaust air removed from
closed in areas.
3. The unit should stand on a firm level base but noting that it should have a small incline towards
the condensate drainage inbuilt to the case (plumbing end).
4. Noise should be directed away from living areas.
5. Water connected correctly as indicated.
6. Any chemicals are introduced downstream of unit.
7. Condensate drain runs to waste.
8. Unit is wired correctly.
9. Unit is not to be started without flow of water.
10. The thermostat is set to the required parameters.
11. Three phase fans and scroll compressors are running in correct rotation.
SECTION 3
1. The Heat Pump unit has an internal thermostat, located at the control panel, which maintains the
outlet water at the selected temperature. The normal operating temperature range is 25C to
40C.
2. Select a suitable temperature about 38C for spa and 28C for pools.
3. The unit is fully automatic and after commissioning, the operation of the unit will be triggered by
water flow and the set temperature parameters.
4. In low ambient temperature ice may form on the evaporator coil. If this occurs the machine will
automatically go into defrost operation.
5. The unit can be controlled via time-clock through water pump. The unit has in-built water
flow/pressure switch and will sense water flow to start unit.
6. Running Time ~ The Heat Pump is controlled by a thermostat which will switch the unit off when
the set temperature is reached. The running time will vary with the weather, amount of wind,
length of time the pool cover is off and the pool usage. As this is an automatic operation, manual
switching is not necessary, i.e. allow the Heat Pump to monitor the pool temperature. Long
periods of being switched off will make the unit's job more difficult, especially when a constant
temperature is desired.
7. Backwashing – Always isolate the unit electrically prior to backwashing.
8. Valve Setting – Do not adjust any valves whilst the pump is running.
Note that the initial temperature rise for swimming pool heating may seem slow but the unit is
probably working. Heat pumps have a much lower KW/MJ per hour heat output capacity than gas
and will need to operate for more time to deliver the same heat transfer.

COMMISSIONING

OPERATION

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