9
3. OPERATING INSTRUCTIONS
3.1 Flow requirements
The flow rate of water into the heater must not exceed 17,000 litres per hour (17m
3
/hour/3,740 UK gallons
per hour). A higher flow rate will require the installation of a bypass to prevent damage to the heater
elements.
NOTE: The heater will not operate unless the following minimum flow rates are achieved:
1,000 litres/hour (1m
3
/hour/220 UK gallons/hour)
3.2 Water quality
The water quality
MUST
be within the following limits:
•
PH: 6.8
– 8.0
•
Total Alkalinity (TA): 80
– 140 ppm (parts per million)
•
Chloride Content MAX: 150 mg/litre
•
Free Chlorine: 2.0 mg/litre
•
Total Bromine: Max 4.5 mg/litre
•
Total Dissolved Solids (TDS)/Calcium hardness: 200
– 1,000 ppm
Stainless Steel heaters are
NOT
suitable for use on saline (salt) water pools.
ONLY
heaters with titanium
heating elements are suitable for use on saline (salt) water pools.
WARNING:
Failure to meet the water quality limits will void the warranty.
Upon completion of the installation, run the water-circulating pump to purge the system and heater of air
(i.e. remove any trapped air in the system and heater).
•
Switch on the power supply to the heater. This will be indicated by the illuminated Amber light on
the panel.
•
Turn the thermostat to the desired temperature.
•
The heater will only start heating (red light indicator illuminated) when the following criteria are met:
➢
Water circulating pump is ‘On’ delivering more than the minimum flow rate of water (see 3.1
flow requirement).
➢
The required water temperature point is set to a higher value than that of the water.
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.
3.3 Selector knob operation
To aid navigation through the controller options, the digital heater is fitted with a selector knob for easy
and user-friendly navigation.
To adjust or select any option simply turn the knob clockwise or anti-clockwise (see Fig. 10).
To confirm selected option, press the knob button (OK).
The display should show message ‘SAVED’
confirm the changes (see Fig. 11).