Hot water timer

Please see below the procedure for altering the timer you have below. No change in connections is needed. However it would be wise to safely isolate the thermostat supply before attempting to alter it. “Adjusting The Off-Peak Time Period After removing the mechanism from its pack, removing the fixing screws, check the Off-Peak time period. (The Off-peak switching times are available from the supplying Regional Electricity Company.) If necessary this can be adjusted as detailed below. Ensure that the Timeswitch is not connected to the mains supply. The adjustable dial has been designed so that the ON and OFF time cams can be set between11:30pm and 9:00am in steps of 15 minutes. The cams can be set between the minimum setting of 4½ hours to maximum of 7 hours. The cams will have been pre-set on production, if a different time setting is required the cams should be adjusted before installation. All adjustments are made from the back of the front cover. First, rotate the dial until the Orange ON cam is visible (See diagram). Locate a screwdriver in the slot and press cam away from the underside of dial. Because of the stops the Blue OFF cam may have to be re-positioned before the ON cam can be set. The cam can now be positioned at the desired time, by sliding it clock-wise or anticlockwise on the dial. Through the clear panel located on the face of the dial you can observe the position of the cam. Removing the screwdriver will automatically lock the cam in position. Both the Blue and Orange cams are set with a similar operation. Where the 2-Rate electricity meter is controlled by a Radio Teleswitch or other equipment which control tariffs remotely or seasonally, before setting the cams you must find out from the Customer Services Centre of your Electricity Supplier whether the Off-Peak times are switched on GMT throughout the year or altered by one hour during BST. (This department can also provide information regarding off-peak electricity timings). If they are switched according to GMT the dial can be set as above. If they change according to BST ensure the dial is adjusted so that the OFF time is set one hour before the end of the Off-Peak period.”