36
Commissioning
Checklist Before Start Up
All interconnecting pipework has been fully
completed.
Condensate disposal system fully completed
and gravity portions have been tested.
Control cabling installation complete except for
nal connections to outdoor unit.
Required additional refrigerant added - Add
refrigerant before opening service valves.
Outdoor service valves fully open.
Main power supply is available for all outdoor
units and will be activated 24 hours prior to
startup.
Main power supply is available for all indoor
units.
Local controllers installed where necessary.
Site conditions suitable for operating
the equipment. (REAL systems shall not
operate during construction.)
Protective covers removed from all indoor
and outdoor units.
Cassette panels installed.
Commissioning
Step 1: Power on
Power on all indoor units and the outdoor unit.
Step 2: Enter commissioning mode
When the outdoor unit is rst powered on, it displays
“- - - -” which means the unit is not commissioned.
Press and hold the Down and Up buttons
simultaneously for 5 seconds to enter the
commissioning mode.
Step 3: Set the indoor unit type (See ow chart
on next page)
The digital display of the outdoor unit displays “01 _0”,
where 4th digits ashing. The 4th digit represents the
type of indoor unit. The initial value is 0 which means
indoor unit type is VRF indoor unit. Short press the
Down or Up button to change the number.
Once the number of indoor unit type has been set,
short press the OK button to conrm and automatically
proceed to the next step.
Step 4: Set the indoor unit amount
The digital display of the outdoor unit displays “02
__” where 3rd and 4th digits ashing. Short press the
Down or Up button to change the indoor unit amount.
Press OK to conrm. The system will set indoor unit
addresses automatically.
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