Hi there, I have a client in a council flat with a 'heat with rent' agreement, they pay a fixed amount for all their heat and hot water and pay for their own domestic supply (plug in's lights etc) These flats normaly have in our area a tariff or times to suit called 'Total heating total control' which supplies 3 off peak periods controlled by the supplier via a teleswitch.
Now upon taking her meter readings to help her set up her domestic account I noticed she had a new meter with lines in and out marked 1,2,3,4. 1 & 2 seem to come from the main fuse (supply into house) the third which is blue goes to another point and splits into 2 and returns to the consumer unit the fourth goes to another point then to a mechanical time switch then back to the consumer unit (times set are 11.30pm - 7.30am) this would suit E7 times, there is also a red (dark) wire that comes from the meter to the time switch. I can't figure out what this timer is controlling as the heating and hot water consumer unit is a 24hr one designed for THTC with a seperate consumer unit for the domestic supply. There is a E7 control device in the kitchen which will switch when the 3 off peak times are available. I'm not an electrician but I'm employed as an enegy advisor helping people with 'energy problems' and I having trouble getting the local authority to check this out.
Any advice would be appreciated, thanks in advance
