Performance
Temperature control turned fully anti-clockwise
12 litres/minute at 25°C temperature rise
Temperature control turned fully clockwise
6 litres/minute at 55°C temperature rise
Temperature
limiter
Burner
Control
unit
Gas valve
Hot water
(outlet)
4
Supplied By www.heating spares.co Tel. 0161 620 6677
Fan
Cold water
pipe (inlet)
Gas inlet pipe
Water
valve
Differential air
pressure
switch
Fig. 1