21
E
Extension for heating circuit 2 (HC2), ZK03863
F
Extension for heating circuit 3 (HC3), ZK03864
G
Extension for heating circuit 4 (HC4), ZK03865
H
Extension for cooling via HC1, ZK03866
L
Extension for cooling via HC2, ZK03867
M
Extension for cooling via HC3, ZK03868
N
Extension for cooling via HC4, ZK03869
O
Extension for DHW heating, DHW cylinder,
ZK03856
P
Extension for DHW heating, freshwater mod-
ule, ZK03857
R
Extension for DHW heating with oil/gas boiler,
ZK03855
S
Extension for second heat generator (oil/gas
boiler), ZK03854
T
Extension AC/NC (AC/NC parallel and alterna-
tive), ZK03859
U
Extension NC, ZK03858
V
Non-return valve
■
For cascades: For master and slave heat
pump, one each downstream of primary
pump
■
Without 3-way mixer high temperature main-
tenance: Downstream of secondary pump
W
Extension NC parallel to AC, ZK03860
X
Standard unit
Y
External natural cooling
External start command
Note
This diagram is a general example without shut-off
valves or safety equipment. This does not replace the
need for on-site engineering. Determine the type of
heat source, groundwater or geothermal probe during
the engineering process.
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)
4
Primary pump (on-site sizing)
5
Secondary pump (on-site sizing)
6
Outside temperature sensor (on-site sizing)
7
Safety assembly, secondary circuit
8
Expansion vessel (on-site sizing)
9
Geothermal probes (on-site sizing)
qP
Geothermal probe manifold (on-site sizing)
Safety assembly, primary circuit (on-site sizing)
qW
Pressure switch, primary circuit
qR
Separating heat exchanger, groundwater-brine
qT
Primary side flow switch
qZ
Dirt filter (on-site sizing)
Pos. Designation
qU
Circulation pump for well/groundwater (on-site
sizing)
qI
Refrigerant sensor
qO
Flow switch, coolant buffer cylinder
wP
External heat generator (on-site sizing)
wQ
Control of external heat generator (on-site siz-
ing)
wE
Temperature sensor, main flow, heating circuits
wR
3-way mixer, main flow, heating circuits (on-site
sizing)
eP
DHW cylinder (on-site sizing)
eQ
DHW cylinder temperature sensor, bottom
eW
Immersion heater, DHW cylinder (on-site sizing)
eE
Cylinder loading pump, high temperature main-
tenance, DHW heating (on-site sizing)
eR
Freshwater module (on-site sizing)
eT
DHW cylinder temperature sensor, top
eZ
Circulation pump for external heat generator
(on-site sizing)
eU
DHW circulation pump (on-site sizing)
eI
Temperature sensor, high temperature mainte-
nance, DHW heating (component selection ac-
cording to on-site conditions)
eO
Heat exchanger, loading, DHW heating
rP
Flow limiter, DHW heating (on-site sizing)
tP
Heating water buffer cylinder (on-site sizing)
tQ
Buffer temperature sensor, top
tW
Buffer temperature sensor, bottom
uP
2-way motorised damper, primary circuit (on-
site sizing for type BW 352.B027 and 034)
uQ
Heat exchanger, coolant buffer cylinder
uW
Temperature sensor, flow, natural cooling (com-
ponent selection according to on-site condi-
tions)
iP
Coolant buffer cylinder (on-site sizing)
iQ
Circulation pump, coolant buffer cylinder (on-
site sizing)
iW
Buffer temperature sensor, top
iE
Buffer temperature sensor, bottom
iR
Circulation pump NC, loading (on-site sizing)
iT
3-way mixer, low temperature maintenance/
frost protection (on-site sizing)
iZ
Temperature sensor, heat exchanger, residual
heat, brine outlet (on-site sizing)
iU
Heat exchanger, natural cooling
iI
Temperature sensor flow NC/AC (component
selection according to on-site conditions)
q-P
Heating/cooling circuit HC1 (on-site sizing)
q-Q
Flow temperature sensor HC1 (component se-
lection according to on-site conditions)
Preparing for installation
Hydraulic connection requirements
(cont.)
5855865
Installation
Summary of Contents for BW 352.B027
Page 83: ...83 5855865...
