13
M
Power cable, compressor/fan (3/N/
PE 400 V/50 Hz, on site)
Recommended cable: 5 x 2.5 mm
2
,
flexible
N
2 connecting cables inside DN 100
KG conduit (on site), fully wired (5,
15 or 30 m):
■
Control cable
230 V~
■
LV lead
< 42 V
Note
The maximum cable length is
30 m. Extensions are not permis-
sible.
O
Hydraulic connection lines (heating
water flow and heating water return)
P
Underground channel
Q
Wall duct with expanding mortar (on
site) for hydraulic connection line
R
Moisture-proof and waterproof wall
ducts (on site)
S
Drain & fill facility with shut-off valve
(for draining with compressed air)
T
Expansion vessel with safety
assembly (accessories)
U
Clearance, house wall — founda-
tions:
■ Maximum clearance depends on
length of the connecting cables
and hydraulic connection lines:
Max. 23 m
■ Maintain the minimum clearance
to other objects (> 1.5 m) when
siting.
Heating water connection (hydraulic
connection lines
O
)
Use the hydraulic connection set (acces-
sory). The connection set is fully pre-
pared in different lengths. The flow and
return lines are flexible and have 2 adap-
tors each. The lines are located inside a
common thermal insulation.
■ Flow/return line: 2 x DN 32
■ Adaptor fittings: DN 32 to R 1¼
■ Lines are fed into building
Q
through
a wall duct with expanding mortar (on
site).
■ Provide a drain & fill facility
S
for
heating water flow and return in the
building near an external wall and
0.8 m below ground level.
Note
In buildings at ground level, provide a
thermally insulated duct or enable
draining of the heat pump with com-
pressed air.
Frost protection
If the heat pump control unit and heating
circuit pump are ready for operation, the
frost protection function of the heat pump
control unit is enabled. Drain the system
via the drain & fill facility
S
when the
heat pump is taken out of use or if the
power fails for a long period.
In heat pump systems where a power
failure would not be detected (holiday
home), the heating circuits can be oper-
ated with suitable antifreeze. Ensure that
the system components used are com-
patible with the antifreeze.
Preparing for installation
Siting requirements
(cont.)
5516 436 GB
Installation
