Heating medium side
CONNECTING THE CLIMATE SYSTEM
A climate system is a system that regulates indoor
comfort with the help of the control system in F1355
and for example radiators, underfloor heating/cooling,
fan convectors etc.
• The pipe connections are on the rear of the heat pump.
• Install the necessary safety equipment and shut-off
valves (installed as close to F1355 as possible so that
the flow to individual cooling modules can be shut
off).
• Fit the enclosed filterballs on the incoming pipe.
• The safety valve must have a maximum 0.6 MPa (6.0
bar) opening pressure and be installed on the heating
medium return. The entire length of the overflow
water pipe from the safety valve must be inclined, to
prevent water pockets and must also be frost-free.
• When connecting to a system with thermostats on all
radiators, a relief valve must be fitted, or some of the
thermostats must be removed to ensure sufficient
flow.
• Fit the supplied non-return valves on the outgoing
pipe.
Caution
When necessary you should install vent valves
in the climate system.
Caution
F1355 is designed so that heating production
can be performed using one or two cooling
modules. However, this entails different pipe
or electrical installations.
Water heater
CONNECTING THE HOT WATER HEATER
• Any docked hot water heater must be fitted with ne-
cessary set of valves.
• The mixing valve must be installed if the setting is
changed so that the temperature can exceed 60 °C.
• The setting for hot water is made in menu 5.1.1.
• The safety valve must have a maximum opening
pressure of 1.0 MPa (10.0 bar) and be installed on the
incoming domestic water line as illustrated. The entire
length of the overflow water pipe from the safety valve
must be inclined to prevent water pockets and must
also be frost-free.
Caution
Hot water production is activated in menu 5.2
or in the start guide.
Caution
The heat pump/system is designed so that hot
water production can be carried out with one
or several cooling modules. However, this en-
tails different pipe or electrical installations. Hot
water production takes place via cooling mod-
ule EP14 as standard.
NIBE F1355Chapter 4 | Pipe connections18
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