REMKO KWL 130 H - Manual (Page 35)

Additional checks
General checks
■
Checking that minimum clear-
ances are correct.
■ Check the outlet possibility of
cooling and heating capac-
ity over the cold or hot water
outlet (indoor unit).
Electrical checks
■
Checking electrical connections
for correct phase sequencing.
■
Function check of the cooling
mode/heating mode enable
(option).
Valves for hydronic balancing
■
The calculated excess pressure
in the pipe network layout at
the individual cold water outlets
must be adjusted in the pipe leg
regulating valves.
Safety valve
■
The safety valves and their cor-
rect function must be checked.
■
The drain line for the valves are
to be checked for function and
leak tightness.
■
If necessary, change the in-
stallation site. For this, the
manufacturer's authorisation is
required.
■
If necessary, change the installa-
tion site. For this, the manufac-
turer's authorisation is required.
■
For cooling and heating sys-
tems, the volume and the
preliminary pressure for the dia-
phragm expansion vessel must
be adjusted to both operating
modes; integrate an additional
diaphragm expansion vessel in
the system if necessary.
■
Function check of the enable
mode / Stand-By (option).
Checking the medium cycle
■
Check the circulating pump for
free flow.
■
Check that all valves are open.
■
Check the medium cycle.
■
Set the circulation pump’s flow
volume.
Checking the cooling cycle
■
Checking the cooling cycle for
adequate oil/coolant.
■
Check the cooling cycle for
leaks.
■
Observe the manuals for the
unit and all other components
when commissioning the entire
system.
Commissioning
The systems are equipped
with a phase sequence relay
which prevents the operation
of the controller if the phrase
sequence for the electric mains
connection is wrong.
The phrase sequence must be
corrected if the controller is
not activated during
commissioning.
NOTE
During manual bleeding, es-
caped glycol mixtures must be
disposed of separately.
NOTE
Commissioning should only be
Carried out by trained person-
nel and after certification to be
documented.
NOTE
Working test for cooling
mode
1. Switch the power supply on.
2. Open all shut-off valves if
necessary.
3. Switch the system and the cor-
responding circulating pump on
to the highest stage.
The outlet temperature must lie
between +4 and +18°C.
4. Switch the unit on and select
the cooling operating mode.
If the return temperature is
warmer than the setting, the
compressor display will blink
and the compressor will begin
to work after approx. 3 to 5
minutes.
5. Please note that the supply
temperature at the nominal
medium flow lies approx. 5 K
below the return temperature.
- If the supply temperature falls
below the factory setting of
4°C, a fault signal is triggers. If
this is the case, a higher target
temperature must be selected.
If the spread is too great or too
small, the medium flow must
be checked.
6. Measure and record all the
required values in the commis-
sioning report and check the
safety functions.
7. Check the system control using
the functions described in the
“Operation” chapter.
35