Operating instructions

Inst.241a Viron Series Pool & Spa Heater V08.11
7
MAINTENANCE
It is recommended that you check the following at least every six months and at the beginning of every swimming
season.
1. Examine the flue outlet and panel louvers for blockages. Make sure there are no obstructions to the flow
of air to or from the appliance.
2. Keep the heater area clear and free of combustibles and flammable liquids. Chlorine should not be stored
in the vicinity of the heater. Chlorine and acid vapours, when drawn through a heater, can rapidly cause
corrosion of the heat exchanger.
3. Keep the heater area free from garden refuse and debris. This will help prevent insects nesting in the unit
and ensure extended life and reliability of your heater.
4. Have your heater professionally inspected at least every 2 years.
WINTER OPERATION
If the pool won’t be used for a month or more, turn the heater off at the main gas isolation valve. For areas where
there is no danger of freezing, water should circulate through your heater all year long even though you are not
heating your pool.
Where freezing is possible, it is necessary to drain the water from the heater. This may be done by loosening the
inlet or outlet barrel union. If the heater is below water level, isolate it from the pool first by closing shut off valves
before and after the heater.
CAUTION: If the heater has been drained for freezing conditions, do not turn on until the system is circulating
water.
INSTALLATION
THIS APPLIANCE MUST BE INSTALLED BY AN AUTHORISED PERSON. Refer to heater data plate for
specifications of gas type, gas consumption, burner pressure and water pressure.
This appliance must be installed in accordance with local regulations and Australian Standard Installation Code
AS5601.
The installer must test the operation of the appliance before leaving.
FLOW RATES
The Viron Pool Heater requires a minimum of 200 litres per minute flow for 250 models, 250 litres per minute flow
for 350 models, 300 litres per minute flow for 450 models and350 litres per minute for 550 models and the
maximum permissible flow rate is 500 litres per minute. For flow rates in excess of 500 litres per minute, an
external by-pass valve must be fitted.
WATER CONNECTIONS
The heater should always be installed after the pump and filter. The water connections are located on the right
hand side of the heater. The inlet and outlet are clearly marked. Water connections require 50 mm PVC glue in
plumbing.
All automatic sanitising devices must be installed after the heater and in such a way that the sanitiser cannot enter
the heater without first mixing with the water in the pool or spa. Sanitisers that are connected prior to the heater
will void heater warranty.
A non return valve is not required to be fitted between the filter and the heater.