Ok, this is how the Pulsacoil A Class works:
The two switches on the wall:
1 turns the boiler on (this must be kept on or the boiler doesn't work) - one on the left
1 turns the timer clock on (this must be kept on or the timer doesn't work) - one above timer/clock
BOTH MUST BE KEPT SWITCHED ON - Do not turn off.
The Green switch on the Pulsacoil must always be switched on
KEEP SWITCHED ON - Do not turn off.
The Timer Clock is now set on timed and comes on during off peak hours (12 midnight to 7am) it comes on when the thermostat thinks the water is getting cold. So water is heated during the night. Do not turn this off.
THE ONLY BUTTON YOU NEED TO PRESS NOW IS JUST THE BOOSTER BUTTON IF THE WATER ISN'T HOT ENOUGH. LEAVE IT ON FOR 1HR THEN PRESS BOOSTER BUTTON AGAIN TO SWITCH OFF. (do not touch the other switches or turn the green button off as they are all set properly)
Going forward now, when you wake up in the morning the water should be hot enough for a bath or shower, but if not:
Press the BOOSTER button and leave on for 1hr max whilst you take your bath/shower and then PRESS BOOSTER BUTTON TO SWITCH OFF.
Do not turn off any other switches incl the green switch on Pulsacoil.
How it works..
The Pulsacoil has two immersion heaters inside, a bottom one which is heated during off-peak hours between 12 midnight and 7am and its thermostat controlled.
The top immersion is the on-peak booster button which heats the top of the water and is controlled when you hit the booster button on the Pulsacoil.
The timer is set so that water is heated during the night when the thermostat kicks in and then if more water is needed during the day, you press the booster button which kick starts the top immersion heater.
You will have warm water at the bottom of the tank which has been heated during off peak hours and then when you hit the booster it heats the top of the water.
Nicola, January 2009