Cold start up with Fan convectors and air source
heat pumps
An air source heat pump requires the buffer tank to be
above 14 degrees centigrade in order to perform a defrost
of the evaporator. If the outside weather conditions are
cold it is essential that the buffer tank must be bought up
to temperature before gradually opening up the heating
circuits. If the heating circuits are opened too soon there is a
risk that the buffer tank temperature will be depleted too low
and the heat pump will be unable to perform a defrost.
Troubleshooting
Insuffi cient heat output from the heat exchanger may be
caused by:
Airlock in the heat exchanger – Isolate from electrical
–
supply, remove the front cover, and bleed the appliance
as per the Water Connection section.
Water temperature too low – the boiler or heat pump
–
thermostat may need increasing.
Insuffi cient fl ow of the hot water circulating through
–
the radiators – rebalance by closing back lockshield
valves on radiators to increase water fl ow through the
appliance.
Dirty heat exchanger.
–
Cleaning and User Maintenance
WARNING: DISCONNECT POWER SUPPLY before
carrying out any cleaning or maintenance.
General cleaning
External appearance can be maintained by wiping
occasionally with a damp cloth; for stain removal, weak
soap solution can be applied, then wipe dry.
Internal cleaning and maintenance
From time to time it may be necessary to remove the front
from the unit so that the interior of the heater and the
heater compartment can be cleared of any dust or fl uff.
To remove, unscrew the two fi xing screws and withdraw
the front andgently remove dust with a soft brush and/or a
vacuum cleaner, taking care not to damage the fan or heat
exchanger.
After Sales Service
Your product is guaranteed for one year from the date of
purchase. Within this period, we undertake to repair or
exchange this product free of charge provided it has been
installed and operated in accordance with these instructions.
Should you require after sales service or should you need to
purchase any spares, please contact the retailer from whom
the appliance was purchased or contact the service number
relevant to your country on the warranty card. Please do
not return a faulty product to us in the fi rst instance as this
may result in the loss or damage and delay in providing you
with a satisfactory service.
Please retain your receipt as proof of purchase.
