To Check The Insulation Resistance Of The Compressor; Commissioning; Checklist Before Commissioning; To Perform A Test Run - Daikin RZAG71M7V1B Installation Manual

5 Commissioning

4.6.2 To check the insulation resistance of the
compressor
NOTICE
If, after installation, refrigerant accumulates in the
compressor, the insulation resistance over the poles can
drop, but if it is at least 1 MΩ, then the unit will not break
down.
▪ Use a 500 V mega-tester when measuring insulation.
▪ Do not use a mega-tester for low-voltage circuits.
1 Measure the insulation resistance over the poles.
If
≥1 MΩ Insulation resistance is OK. This procedure
is finished.
<1 MΩ Insulation resistance is not OK. Go to the
next step.
2 Turn ON the power and leave it on for 6 hours.
Result: The compressor will heat up and evaporate any
refrigerant in the compressor.
3 Measure the insulation resistance again.
5 Commissioning
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
5.1

Checklist before commissioning

Do NOT operate the system before the following checks are OK:
You read the complete installation instructions, as
described in the installer reference guide.
The indoor units are properly mounted.
In case a wireless user interface is used: The indoor unit
decoration panel with infrared receiver is installed.
The outdoor unit is properly mounted.
The following field wiring has been carried out according
to this document and the applicable legislation:
▪ Between the local supply panel and the outdoor unit
▪ Between the outdoor unit and the indoor unit (master)
▪ Between the indoor units
There are NO missing phases or reversed phases.
The system is properly earthed and the earth terminals
are tightened.
The fuses or locally installed protection devices are
installed according to this document, and have not been
bypassed.
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.
The insulation resistance of the compressor is OK.
There are NO damaged components or squeezed
pipes on the inside of the indoor and outdoor units.
Installation manual
14
5.2
This task is only applicable when using the BRC1E52 user interface.
▪ When using BRC1E51, see the installation manual of the user
Then
▪ When using BRC1D, see the service manual of the user interface.
There are NO refrigerant leaks.
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.

To perform a test run

interface.
NOTICE
Do not interrupt the test run.
INFORMATION
Backlight. To perform an ON/OFF action on the user
interface, the backlight does not need to be lit. For any
other action, it needs to be lit first. The backlight is lit for
±30 seconds when you press a button.
1 Perform introductory steps.
#
1 Open the liquid stop valve (A) and gas stop valve (B)
by removing the stem cap and turning
counterclockwise with a hex wrench until it stops.
A
2 Close the service cover to prevent electric shocks.
3 Turn ON power for at least 6 hours before starting
operation to protect the compressor.
4 On the user interface, set the unit to cooling operation
mode.
2 Start the test run.
# Action
1 Go to the home menu.
2 Press at least 4 seconds.
3 Select Test Operation.
Action
B
Result
Cool
Set to
28
°C
The Service Settings menu
is displayed.
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Return Setting
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1 – 2017.04