Instructions for the installer
15
4.2.2 CASCADE INSTALLATIONS
1 - Wallcon condensing boiler
2 - Room thermostat (QAA55)
3 - Outside probe (QAC34)
4 - Condansate discharge
5 - Air seperator
6 - Plate heat exchanger / Low loss header
7 - Dirt seperator
8 - Expansion vessel
9 - Radiator pump
10 - Heating system(radiator/underfloor)
11 - DHW tank pump
12 - DHW tank sensor (QAZ36)
13 - Hot water
14 - DHW re-circulation pump
15 - DHW tank expansion vessel
16 - DHW tank
17 - Cascade supply sensor (QAD36)
18 - Cascade return sensor (QAD36)
Key
Air Intake
Fume discharge
3
2
1
5
6
7
17
18
8
9
10
Air Intake
Fume discharge
3
2
1
5
6
18
13
17
7
9
10
8
11
14
15
12
16
RESET
RESET
SLAVE
RESET
SLAVE
RESET
SLAVE
RESET
SLAVE