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Bees ton ACER wall-hung c ondens ing boiler 60-180kW
D ESIGN MANUAL
8.3 Example 3
ACER boilers serving two heating circuits. A variable temperature fully compensating circuit, a constant
heating circuit and a domestic hot water calorifier using the Beeston Helix control package.
HXMC
HXRS
HXRS
HXOS
HXFS
HXFS
HXFS
HXDHWS
NRV
SV
TPRV
AAV
P1
P2
P3
MV1
Helix main controller
Helix remote room sensor, heating zone 1
Helix remote room sensor, heating zone 2
Outside sensor
Helix flow sensor
Helix flow sensor, heating zone 1
Helix flow sensor, heating zone 2
Helix domestic hot water sensor
Non return valve
Safety relief valve
Temperature & pressure relief valve
Air vent
Heating zone 1 pump
Heating zone 2 pump
Calorifier primary pump
Heating zone 1, 3 way mixing valve
P a g e 1 8
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