
1111
Thermann Owner's Manual
Thermann X Split Heat Pump
1110
SYSTEM MAINTENANCE
Regular servicing will help to extend the life
of the water heater, and keep it operating
safely and eciently. Your water heater
warranty is not conditional on completing
the regular servicing recommended in this
manual.
Six Month Service:
This service may be carried out by the
owner.
1. Stand clear of the Pressure &
Temperature Relief (PTR) Valve drain
pipe outlet.
2. Open the PTR Valve for approximately
10 seconds by lifting the easing lever
on the valve. Confirm water discharges
to waste through the drain pipe.
3. Lower the easing lever gently and
check it closes correctly.
Other than this, personally inspecting or
servicing any part of your water heater is
not recommended
Five Year Service (All Water Heaters):
This service should only be carried out
by a licensed tradesperson. In locations
where the water has Total Dissolved Solids
(TDS) exceeding 600 mg/L, this service is
recommended every 3 years.
The service should include the following:
• Replace the PTR Valve.
• Replace the anode
• Drain and flush the water heater
CONSIDERING A SERVICE CALL?
It is recommended that the following points
be reviewed before making a service call:
No Hot Water:
• If you have a heat pump water heater,
ensure that the power supply circuit
breaker has not “tripped”. If your water
heater is on a timed tari such as o-
peak, ensure this is operating correctly.
High Electricity Bills or Insucient Hot
Water:
• Often the hot water usage of showers,
washing machines and dishwashers
can be under estimated. Review these
appliances to determine if your daily
usage is greater than the capability of
your water heater.
• If necessary check the shower flow
rates with a bucket, measuring the
amount of water used over that period
of time. If it is not possible to adjust
water usage patterns, an inexpensive
flow control valve can easily be fitted
to the shower outlet.
• Do you have the correct size water
heater for your requirements? Sizing
details are available from your local
Reece branch.
• Is there a leaking hot water pipe or
dripping hot water tap? A small leak
can waste a large quantity of hot
water. Replace faulty tap washers and
have your plumber rectify any leaking
pipe work.
• Is the Pressure & Temperature Relief
Valve discharging too much water? See
below.
Continuous Trickle of Water from Pressure
& Temperature Relief (PTR) Valve:
This is most likely due to a build up of
foreign matter. In this case, try gently
raising the easing lever on the PTR Valve
for a few seconds, then release gently. This
may dislodge a small particle of foreign
matter and rectify the fault.
Water Discharge from PTR Valve:
It is not unusual for a small quantity of
water to discharge during the heating of
water in your storage tank. The amount of
discharge will depend on hot water usage
and size of the storage tank. As a guide, it
will discharge about 2% of the volume of
the water heated. Continuous leakage of
water from the PTR Valve may indicate a
problem with the water heater. Turn o or
shut down the water heater and contact
Customer Service.