Rheem 310 - Commissioning

22
COMMISSIONING
TO FILL AND TURN ON THE WATER HEATER
The power supply to the water heater must not be switched on until the
water heater is filled with water and a satisfactory megger reading is
obtained.
Open all of the hot water taps in the house (don‟t forget the shower).
Open the cold water isolation valve fully to the water heater.
Air will be forced out of the taps.
Close each tap as water flows freely from it.
Check the pipe work for leaks.
Switch on the electrical supply at the isolating switches to the water
heater.
Set the timer if one is installed.
The heat pump may take up to 30 seconds to commence operating when the
power supply is switched on. The heat pump will only operate when the water
in the storage tank requires heating, the heat pump compressor is cool and
power is available at the water heater.
When the heat pump is operating, the system may switch to the booster
heating unit if it detects that the ambient air temperature is below the minimum
operating temperature of 5°C (41°F). It may also switch back to heat pump
operation from the booster heating unit if it detects the ambient air temperature
has moved back to within the heat pump‟s operating temperature range. If the
ambient air temperature is below 0°C (solid red LED), the heat pump will not
operate and the booster heating unit will operate instead.
Note: The heat pump may not turn on after having just completed a heating
cycle and more hot water is drawn from the water heater, or if power was
switched off whilst the heat pump was operating. The heat pump will wait at
least five (5) minutes, and until the compressor has cooled down and the
conditions for start up are favourable, in order to protect the compressor from
damage. This may take up to twenty (20) minutes from the last heating cycle.
It is important to wait for five (5) minutes after the heat pump has activated to
ensure it continues to operate and is functioning correctly.
Explain to the householder or a responsible officer the functions and operation
of the heat pump water heater. Upon completion of the installation and
commissioning of the water heating system, leave this guide with the
householder or a responsible officer.