THERMAFLOW LTD | THERMAFLOW® ELECTRIC COMBINATION BOILER |
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2.6.6 Electrical Test
Carry out preliminary electrical system checks as below.
1) Test insulation resistance to earth of mains cables.
2) Test earth continuity and short circuit of all cables.
3 Test the polarity of the mains.
4 Refit the enclosure cover.
2.6.7 Supply cable connection [Interrupted off peak supply]
Open the enclosure situated at the top of the boiler.
Using 16mm² twin and earth cable of a suitable length route the mains interrupted supply cable through a
piece of suitably sized flexible conduit into the 100amp isolator shown in diagram 5.
Standard colours are Brown- Live, Blue- Neutral and the earth should be sleeved with a suitably sized
green and yellow earth sleeve.
Make the earth cable of a greater length so that if the cable is strained the earth would be the last to
become disconnected.
CAUTION: IT IS ESSENTIAL TO MAKE SURE THE POLARITY IS CORRECT.
2.6.8 Electrical Test
Carry out preliminary electrical system check as below:
1) Test insulation resistance to earth, of mains cables.
2 Test earth continuity and short circuit of all cables
3 Test the polarity of the mains.
4 Refit the enclosure cover.
2.6.9
IMPORTANT:
Electricity tariffs
The Thermaflow will operate on any ~230-240V, 50Hz supply.
The most economical option is a peak
avoidance tariff as described previously.
Scottish Power, Guernsey Electric Ltd, all have an 18 hour tariff.
Scottish & Southern Energy has an E10 wet electric heating tariff
Other areas offer their own tariffs, which may be viable for economic operation.
It is advisable to use the Thermaflow off-peak control when using off-peak tariffs other than the
