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7
User Instructions
7.1 TEMPERATURE CONTROL
IMMERSION HEATER(S)
A combined thermostat and thermal cut-out is provided for each immersion heater. The thermostat is
factory set to give a water storage temperature of approx. 60
between 10
be made by opening the terminal cover(s), DO NOT remove the cover(s) without first switching
off the electrical supply. The temperature adjustment is made by inserting a flat bladed screwdriver
in the slot in the disc on top of the thermostat and rotating (see Diagram 3).
If in any doubt consult a competent electrician.
INDIRECT UNITS
Indirect units are fitted with an Indirect Thermostat which will control either a 2 or 3 Port motorised
valve and hence the temperature of the water in the MegaLife unit. The thermostat is factory set to
give a water storage temperature of approx. 60
and 70
C, this will usually have been done during installation. Adjustments can only be made by
o
opening the terminal cover. DO NOT remove the cover without first switching off the electrical
supply. Temperature adjustment is made by roating the adjustment knob located on the front of the
thermostat mounting bracket (see Diagram 4).
If in any doubt consult a competent electrician.
DO NOT bypass the thermal cut-out in any circumstances.
7.2 FLOW PERFORMANCE
As with any cistern fed vented system the pressure obtained at the outlet points is due to the height
(head) of the cold water feed cistern above the outlet. Outlet points with a low head may give lower
flow rates than those located at a lower level within the property. When several hot outlets are opened
simultaneously some loss of flow from outlets with a low head or located some distance from the
MegaLife may occur. This is a function of the system design and does not necessarily indicate a fault
with the water heater.
If in doubt consult a competent plumbing installation engineer.
C and 70
C. This will usually have been done during installation. Adjustments can only
o
o
C, however it can be set to control
o
C, however it can be set to control between 10
o
C
o
15
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