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Heating & Hot Water Installation
Run Signal to
Heat Pump
B20
B22
As many heating zone valves as you like can be connected to the system.
When commissioning this system, you need to follow the procedure below don't skip this, if you do the unit won't work properly
Fill in the warranty card on page 5 and 6.
Hand the end user pages 7-11.
Start-up Procedure
Filling and flushing, when installing any Heat pump, we insist on a thorough system flush prior to connection in line with the Building
Regulations for England and Wales, Part L, 2006. Using the power flusher fill the system with water and 25% Propylene Glycol, there is no
pressure sensor in the unit so we can operate from open vented to 3 bar maximum.
Setting up the cylinder immersion heater
To avoid the immersion heater cutting out before the legionella function is complete
you have to set the stat in the immersion heater to 70°C minimum, on a Telford
cylinder set it to 5.
Check the tank sensor
The blue tank sensor MUST be installed above the immersion heater and it must be
securely fixed in the tank right into the back of the pocket, I would use heat paste and
cable ties to do this.
Powering Up
Makes sure all your room thermostats are off and all underfloor run signals are off.
Apply power to outdoor and indoor unit, you should see red lights on the PCBs of both units. IIf there are no lights you will need the
electrician to check for power.
The remote controller will be dead for about 4 minutes; after that it will come to life. You will see 00 first then 01 on the remote controller
screen for 90 seconds. If 00 continues to show the outdoor unit is not powered up or its not connected. Get the sparky to check this.
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Installation Manual.indd 22
Valve Z1
Valve Z2
Power In
Power In
31/08/2018 19:01:34
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