Fig 1 b
Page 05
1:7 OPERATING FEATURES AND INSTRUCTION
1:7.1 How does your Boiler work?
Hot Water
If the Programme is set for Hot Water only or Summer/Winter switch is set to Summer: -
a) The Boiler will operate until the hot water tank reaches the temperature you have set on the Hot Water
Tank Thermostat. From cold, this will take approximately 18 minutes. To obtain the maximum temperature
and quantity of hot water (i.e. for a bath) set this to maximum.
b) When any hot water tap is turned ON to give a flow rate in excess of 2.5 litres/minute, the Boiler will
operate during the draw of hot water. When the tap is turned OFF the Boiler will continue to operate until the
hot water tank reaches the temperature set on the Hot Water Tank Thermostat. The period of operation to
replenish the energy used depends on the quantity of hot water drawn.
c) As the rate of water is increased by opening the hot water tap, the water temperature reduces and the tap
should be adjusted to give the desired temperature.
d) If the Programme is OFF (i.e. during the night period) hot water may be drawn but is limited to the energy
stored in the tank. During the period of draw of the circulating water pump will operate but not the Boiler.
Providing the tank has not discharged just prior to the Programme switching off these is normally adequate
hot water for occasional use of wash basins.
e) For daytime use of hot water, set the Programme (if fitted) to give Hot Water ON at least 18 minutes prior to
Page 9 of 57
Installation & maintenance manual for Camray 5 Combi External Boilers
14/04/2005
file://D:\PL61500\PL61500.htm
