Test Operation; Pre-Run Checks; Remote Controller Confirmation; Test Run - Daikin RZQG71L7V1B Installation Manual

15. Test operation

DANGER
Never leave the unit unattended during installation or
servicing. When the service panel is removed live parts
can be easily touched by accident.
INFORMATION
Note that during the first running period of the unit,
required power input may be higher than stated on the
nameplate of the unit. This phenomenon originates from
the compressor that needs elapse of a 50 hours run in
period before reaching smooth operation and stable power
consumption.

15.1. Pre-run checks

Items to check
Electrical wiring  Is the wiring as mentioned on the wiring
Inter-unit wiring
diagram?
Ground wire
Make sure no wiring has been forgotten and
that there are no missing phases or reverse
phases.
Is the unit properly grounded?

Is the wiring between units connected in

series correct?
Are any of the wiring attachment screws

loose?
Is the insulation resistance at least 1 MΩ?

- Use a 500 V mega-tester when
measuring insulation.
- Do not use a mega-tester for low-voltage
circuits.
Is the size of the piping appropriate?
Refrigerant 
piping
Is the insulation material for the piping

attached securely?
Are both the liquid and gas pipes insulated?
Are the stop valves for both the liquid side

and the gas side open?
Extra refrigerant Did you write down the extra refrigerant and

the refrigerant piping length?
Be sure to perform a test run.

Be sure to fully open the liquid-side and gas-side stop valves. If

you operate the unit with stop valves closed, the compressor will
break down.
Be sure to execute the first test run of the installation in cooling

mode operation.
Never leave the unit unattended with an open front panel during


test run.

15.2. Remote controller confirmation

The settings of the remote controller for the BRC1E52 series

should be made in accordance with procedure
The settings of the remote controller for the BRC1E51 series

should be made in accordance with the procedure mentioned in
the remote controller installation manual.
The settings of the remote controller for the BRC1D series

should be made in accordance with the procedure mentioned in
the service manual.
RZQG71~140L + RZQSG100~140L7V1+Y1B(9)
Split system air conditioners
4P327537-1 – 2012.08
15.3. Test run
1 Be sure to turn power on at least 6 hours before starting
operation in order to protect the compressor.
2 Make sure the liquid and gas stop valves are open.
3 Be sure to close the frontside panel before operation, as not
doing so can cause electric shock.
4 Be sure to set the unit to cooling operation mode.
5 Press and hold the Cancel button for 4 seconds or longer.
<Basic screen>
The Service Setting menu is displayed
6 Select Test operation in the Service Settings menu, and press
the Menu/Enter button.
<Service Settings menu screen>
The Basic screen returns and Test operation is displayed.
7 Press the ON/OFF button within ±10 seconds.
The test operation starts.
Check operation condition for 3 minutes.
15.3.
NOTICE
Do not interrupt the test run.
Opening direction
B
A
NOTICE
The backlight will be lit for approximately 30 seconds

by pressing any operation button.
Operate the buttons when the backlight is lit.

However, On/Off can be operated directly when the
backlight is not lit.
Cool
Set to
Cool 28
°C
Press and hold the Cancel button for
4 seconds or longer during backlight lit.
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
Press the Menu/Enter button.
Return Setting
Cool
Press the ON/OFF button within
±10 seconds.
Test Operation Return Setting
INFORMATION
In case the above mentioned procedures 5 and 6 are
performed in reverse order, test operation can start as
well.
A Liquid side
B Gas side
Remove the cap and turn
counterclockwise with a
hex wrench until it stops
Installation manual
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