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The units are equipped with
a phase sequence relay which
prevents an operation of the
controller in case of an incor-
rect direction of rotation of the
electrical mains connection.
If the controllers shows the
fault code "APS" during com-
missioning, the rotating field
must be changed.
NOTE
During manual bleeding, any
emerging glycol mixtures must
be disposed of separately.
NOTE
Additional checks
General checks
Check of the minimum clear-
ances for the correct dimen-
sions
Check of the possibility of
dissipating the cooling and/or
heating capacity via the cold
water and/or hot water con-
sumer (indoor unit)
Electrical checks
Check of the electrical con-
nection for the correct phase
sequence
Functional check of the cooling
/ heating mode enable (option-
al)
Functional check of the opera-
tion / standby enable (optional)
Check of the medium circuit
Check of the circulation pump
for free running
Check whether all valves are
open
Check of the medium circuit
Setting of the nominal volume
flow rate of the circulation
pump
Check of the cooling circuit
Check of the cooling circuit for
leaking oil/refrigerant
Check of the cooling circuit for
pressure tightness
Diaphragm expansion vessel
The pre-pressure of the dia-
phragm expansion vessel must
be adapted individually accord-
ing to the system setup, me-
dium volume, and installation
site.
If necessary, the installation
site must be changed. For this
purpose, a manufacturer release
is required.
For cooling and heating sys-
tems, the volume and pre-pres-
sure of the diaphragm expan-
sion vessel must be adapted to
both types of operation and an
additional diaphragm expansion
vessel must be integrated into
the system if necessary.
A minimum volume of 5 litres
per kW cooling or heating ca-
pacity must be planned for the
overall system.
Line regulating valves
The excess pressure at the
individual cold water consumers
determined in the pipe network
design
must be adjusted at the line
regulating valves.
Safety valve
The safety valves and their cor-
rect function must be checked.
The drain line of the valves
must be checked for function
and seal tightness.
If necessary, the installation
site must be changed. For this
purpose, a manufacturer release
is required.
REMKO KWG
36
36


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