11
Secondary circuit arrangement
Fig 5
1
MAINS COLD WATER SUPPLY
2
STOP COCK (NOT SUPPLIED)
3
PRESSURE REDUCING VALVE – SET 3 BAR
4
CHECK VALVE
5
EXPANSION RELIEF VALVE - SET 6 BAR
6
DISCHARGE PIPE 22mm DIA (SEE SECTION 7)
7
DRAIN COCK
8
IMMERSION HEATER 230v – 3 Kw – 50 Hz
9
COLD WATER INLET CONNECTION – 22mm DIA
10
PRIMARY FLOW CONNECTION – 22mm DIA
11
CONTROL THERMOSTAT SENSOR POCKET
12
PRIMARY RETURN CONNECTION – 22mm DIA
13
TUNDISH 15 TO 22mm
14
TEMPERATURE AND PRESSURE RELIEF VALVE. SET 7 BAR / 90
C
15
HOT WATER OUTLET – 22mm DIA