Checklist Before Commissioning; Checklist During Commissioning; Trial Operation And Testing - Daikin 3MXM40N2V1B9 Installer's Reference Manual

12 | Commissioning

12.3 Checklist before commissioning

12.4 Checklist during commissioning

12.5 Trial operation and testing

Installer reference guide
62
After the installation of the unit, first check the items listed below. Once all checks
are fulfilled, the unit must be closed. Power-up the unit after it is closed.
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~E) on the wiring and piping match for each indoor unit.
Check if the priority room setting is set for 2 or more rooms. Keep in mind that the DHW
generator for Multi or the Hybrid for Multi shall not be selected as the priority room.
To perform a wiring check.
To perform an air purge.
To perform a test run.
For the Hybrid for Multi, certain precautions are required before using this
function. For more information, see the indoor unit installation manual and/or the
indoor installer reference guide.
Before starting the test run, measure the voltage at the primary side of the safety breaker.
The piping and wiring work match.
2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM
R32 Split series
4P600463-1D – 2021.03