Removing Air from the System
The following steps must be taken to ensure all air is removed from the system. Incorrect removal
of air may cause the water temperature to vary.
Plumb pipes to the tank unit and the heat pump unit.
Push the lever up on PTR valve to open and fill the tank unit with water.
Confirm that the water comes out of the relief valve and then close the lever.
Open the hot water taps in the home to remove air.
Close the hot water taps in the home after no air is confirmed in the water.
Figure 5: Air removing process
PTR Technical parameters:
PTR valve pressure:850kPa
PTR valve power capacity: 10kW
PTR valve joint:G1/2"
Pressure relief temperature of PTR valve:99
◦
C
Electrical Connections
PTR valve lever
Plumb pipes to storage tank unit and heat pump
unit.
Push lever on the PTR valve to open and fill in
the tank with water.
Confirm that water is coming out of the relief
valve and then close the lever.
Relief valve leading gear should be operated at
least once every six months. If water does not
discharge freely when the lever is operated, the
valve should be checked by an authorised
agent.
Electrical installation should be done by a licenced electrician who carries out the work according
to the relevant regulations for electrical safety and wiring.
Follow the wiring rules for the breaker rating and the thickness of the electrical wiring.
Verify that the tank unit is full of water and the water stop valves are open before turning on the
power.
System Operation Outline Continuous Power
The system runs its water heating cycle once a day to fill up the storage tank unit with heated
water.
If the block out time function selected (setting covered on page 17 of installation manual) the unit
will not operate during block out times. This function is typically used on installations that have time
of use electricity tariffs.
The water heating cycle operation starts automatically when the temperature of the residual hot
water in the tank unit is 5
◦
C lower than the set temperature.
The system will not run if the electrical power supply is cut off (i.e. if it is connected to off-peak
power). However, the system will automatically start operation once the electricity becomes
available.
To Next Page
Loading...