25
Required components
Pos.
Designation
1
Heat pump
2
Heat pump control unit
3
2-way motorised damper, heating water buffer
cylinder outlet (on-site sizing for type BW
352.B027, 034 and 056)
5
Secondary pump (on-site sizing)
6
Outside temperature sensor (on-site sizing)
7
Safety assembly, secondary circuit
8
Expansion vessel (on-site sizing)
qI
Refrigerant sensor
tP
Heating water buffer cylinder (on-site sizing)
tQ
Buffer temperature sensor, top
tW
Buffer temperature sensor, bottom
rYI
Immersion heater, heating water buffer cylinder
(on-site sizing)
z-P
3-way mixer, secondary high temperature
maintenance (on-site sizing)
Hydraulic connection AC/NC (alternative operation) with coolant buffer cylinder
MASTER
P
M
P
M
M
S
Fig. 18
Required components
Pos. Designation
1
Heat pump
2
Heat pump control unit
4
Primary pump (on-site sizing)
6
Outside temperature sensor (on-site sizing)
8
Expansion vessel (on-site sizing)
Safety assembly, primary circuit (on-site sizing)
qW
Pressure switch, primary circuit
qI
Refrigerant sensor
qO
Flow switch, coolant buffer cylinder
uP
2-way motorised damper, primary circuit (on-site
sizing for type BW 352.B027 and 034)
uQ
Heat exchanger, coolant buffer cylinder
iP
Coolant buffer cylinder (on-site sizing)
Pos. Designation
iQ
Circulation pump, coolant buffer cylinder (on-site
sizing)
iW
Buffer temperature sensor, top
iE
Buffer temperature sensor, bottom
iT
3-way mixer, low temperature maintenance/frost
protection (on-site sizing)
iI
Temperature sensor flow NC/AC (component
selection according to on-site conditions)
t-P
2-way motorised damper, primary circuit, cooling
(on-site sizing for type BW 352.B027 and 034)
t-W
2-way motorised damper, well/groundwater, ge-
othermal probes (on-site sizing for type BW
352.B027 and 034)
Preparing for installation
Hydraulic connection requirements
(cont.)
5855865
Installation
Summary of Contents for BW 352.B027
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