12
|
Commissioning
Installer reference guide
59
4MWXM-A
R32 Split series
4P678385-1A – 2022.02
12.3 Checklist before commissioning
1
After the installation of the unit, check the items listed below.
2
Close the unit.
3
Power up the unit.
The
indoor unit
is properly mounted.
The
outdoor unit
is properly mounted.
The system is properly
earthed
and the earth terminals are tightened.
The
power supply voltage
matches the voltage on the identification label of the unit.
There are NO
loose connections
or damaged electrical components in the switch box.
There are NO
damaged components
or
squeezed pipes
on the inside of the indoor and
outdoor units.
There are NO
refrigerant leaks
.
The
refrigerant pipes
(gas and liquid) are thermally insulated.
The correct pipe size is installed and the
pipes
are properly insulated.
The
stop valves
(gas and liquid) on the outdoor unit are fully open.
Drainage
Make sure drainage flows smoothly.
Possible consequence:
Condensate water might drip.
The indoor unit receives the signals of the
user interface
.
The specified wires are used for the
interconnection cable
.
The
fuses, circuit breakers,
or locally installed protection devices are installed according to
this document, and have NOT been bypassed.
Check if marks (room A~C and TO TANK) on the wiring and piping match for each
connected unit.
Check if the priority room setting is NOT set for 2 or more rooms. Keep in mind that the
DHW tank for Multi shall NOT be selected as the priority room.
12.4 Checklist during commissioning
To perform a
wiring
check.
To perform an
air purge
.
To perform a
test run
.
12.5 Trial operation and testing
Before starting the test run, measure the voltage at the primary side of the
safety breaker
.
The
piping and wiring work
match.
Summary of Contents for 4MWXM52A2V1B
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