The maximum flow rates are only recommended flow rates to minimize scale formation and to reduce
wear on the elements. The heater is fitted with a pressure relief valve set to lift at 2 Bar (29 psi). Maximum
flow rates throughout your system will depend on your system configuration.
Flow Rate
3 kW
4 kW
6kW
7.5 kW
Hard water maximum
- use bypass above this rate
- minimise scale formation
2000 gal/hr
152 l/min
2000 gal/hr
152 l/min
2000 gal/hr
152 l/min
2000 gal/hr
152 l/min
Soft water maximum
- use bypass above this rate
- improves element life
1000 gal/hr
76 l/min
1000 gal/hr
76 l/min
1000 gal/hr
76 l/min
1000 gal/hr
76 l/min
Minimum
60 gal/hr
4.5 l/min
80 gal/hr
6 l/min
120 gal/hr
9 l/min
150 gal/hr
11 l/min
Flow Rate
9 kW
10 kW
12 kW
Hard water maximum
- use bypass above this rate
- minimise scale formation
2000 gal/hr
152 l/min
2000 gal/hr
152 l/min
2000 gal/hr
152 l/min
Soft water maximum
- use bypass above this rate
- improves element life
1000 gal/hr
76 l/min
1000 gal/hr
76 l/min
1000 gal/hr
76 l/min
Minimum
180 gal/hr
15 l/min
200 gal/hr
16 l/min
240 gal/hr
20 l/min
Fig 2.
DRAINAGE: A method of draining water away from the heater and other equipment is provided. The
heater should be flushed at the end of each swimming season. During flushing or servicing, water may be
spilled and could cause damage to the floor or other equipment. A drain valve has been fitted to the
vessel to aid you.
Flow direction through the heater is left to right, allowing the temperature controller to sense the
temperature coming from the pool. The direction may be changed by reversing the probes of the control
thermostat and the safety thermostat, as follows:
a)
Switch heater circuit breakers to OFF;
b)
Switch main power supply and pump interlock supply to OFF;
c)
Remove main cover;
