W
ATER
Q
UALITY
The water quality
must
be within the following limits:
PH 7.0 - 7.6
Chloride Content MAX: 150-mg/litre
Free Chlorine: 2.0-mg/litre
Total Bromine: 2.0 - 4.0-mg/litre (2 - 4 ppm)
Total Dissolved Solids (TDS): 1,000 - 2,000 ppm
Stainless Steel heaters are
NOT
suitable for use on saline (salt) water pools.
O
PERATING
I
NSTRUCTIONS
Upon completion of the installation, run the water-circulating pump to purge the system & heater of air (i.e.
Remove any trapped air in the system & heater).
When the water circulating pump is operational and delivering in excess of 1,000-litres per hour of flow
(220 UK gallons), and the temperature set point dial is set to a value higher than that of the water tempera-
ture the control circuit will provide the external contact (not supplied) with the signal to switch on, if wired
correctly the red indicator light will illuminate. In this mode the heater is on and heating.
Q = How long will it take to heat my pool?
A =
Assuming no heat losses
, and a heater sized in the ratio 1.5-kW per 1,000-
UK gallons of water (4,545-litres): it will take 2 days of continuous running to raise the temperature of a
pool from tap temperature to swimming temperature. Heat loss will slow the heating process, particularly
during periods of cold weather, hence the higher the water temperature is to be maintained above average
ambient air temperature, the slower the heating process will become. The only influencing factors are the
level of insulation and the location of the pool with regard to wind shelter.
Useful advice: To reduce running costs and speed up the heating process; Insulate the pool wherever
possible. A floating solar cover is an essential minimum to retain heat.
T
ROUBLE
S
HOOTING
Heater will not switch to heater on mode (red light illuminated)
In most cases this will be as a result of one of the following not being met.
Possible Cause 1.) The set point temperature has been achieved.
To confirm if the set point has been achieved increase the set point by rotating the temperature dial to a
higher temperature. If the heater then switches on the pool had reached the previously selected set point
temperature.
Possible Cause 2.) The high limiting thermostat has tripped.
Remedy; Remove the black button cover and press the red button to re-set (See diagram on following
page). If a positive click is felt the cause of the tripping
must
be investigated and could be caused by a de-
bris / mineral build up or an air pocket trapped inside the flow tube of the heater.
Possible Cause 3.) Insufficient Flow.
A.) Firstly check that the flow switch is located in the correct orientation. An arrow moulded into the top of
the flow switch shows the direction that the water should be passing through the heater. If you are passing
water through in the opposite direction refer to the Flow Requirement section earlier in this manual to ad-
just the flow direction.
