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Element
Kw
Location
400
500
800
1000
1250
1450
2000
2500
Table 9: Immersion allocation
400
Note:
500
The Immersion(s) are not factory fitted.
800
1000
1250
Thermostat/Cut-out
1450
All immersion heaters are fitted with a thermostat which is fitted in the centre of the heater plate
2000
and a cut-out which is fitted to the side of the thermostat. These MUST be wired in series with
2500
the operating coil circuit of the contactor (not supplied). See figures 4 below and figures 5 & 6,
Page 11.
Maximum working temperature is 80°C/176°F. In very hard water areas limit to 60/65°C
(140/150°F)
For optimal working conditions the thermal cut-out should be set to 80°C (factory set, if the seal
is broken it may invalidate your warranty) and the thermostat should be set to 70°C max. If the
thermostat is set above 70°C there could be instances nuisance tripping of the thermal cut-out.
Notes:
The 2 external contactors must be approved components certified for 10,000 cycles of operation
for the contactor controlled by the thermostat and at least 30 for the contactor controlled by the
none self-resetting thermal cut-out.
FIGURE 4: Thermostat and thermal cut-out settings
10
94110301
94110302
94110303
6
9
12
Thermostat
B
94110304
94110305
18
24
Cut-out
Reset
B
DO NOT
BREAK SEAL
FACTORY
SET
A
94110306
94110307
94110308
30
36
45
94110309
54
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