Daikin AZQS140B8V1B, Installer'S Reference Manual

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8 Hand-over to the user
Installer reference guide
21
AZQS100~14 AZQS100~140B7Y1B
Split system air conditioners
4P385529-1B – 2016.10
7.4 To perform a test run
NOTICE
Do not interrupt the test run.
INFORMATION
In case you have to redo the test run, see the service
manual.
1 Perform introductory steps.
# Action
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 B
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 On the user interface, turn ON the unit.
Result: The test run starts automatically. During the test run,
the H2P test LED is ON. When the test run is done, the LED
turns OFF.
7.5 Error codes when performing a
test run
If the installation of the outdoor unit has NOT been done correctly,
the following error codes may be displayed on the user interface:
Error code Possible cause
Nothing displayed
(the currently set
temperature is not
displayed)
▪ The wiring is disconnected or there is a
wiring error (between power supply and
outdoor unit, between outdoor unit and
indoor units, between indoor unit and
user interface).
▪ The fuse on the outdoor unit PCB has
blown out.
E3, E4 or L8 ▪ The stop valves are closed.
▪ The air inlet or air outlet is blocked.
E7 There is a missing phase in case of three-
phase power supply units.
Note: Operation will be impossible. Turn
OFF the power, recheck the wiring, and
switch two of the three electrical wires.
L4 The air inlet or air outlet is blocked.
U0 The stop valves are closed.
U2 ▪ There is a voltage imbalance.
▪ There is a missing phase in case of
three-phase power supply units. Note:
Operation will be impossible. Turn OFF
the power, recheck the wiring, and switch
two of the three electrical wires.
U4 or UF The inter-unit branch wiring is not correct.
UA The outdoor and indoor unit are
incompatible.
NOTICE
▪ The reversed phase protection detector of this product
only functions when the product starts up.
Consequently reversed phase detection is not
performed during normal operation of the product.
▪ The reversed phase protection detector is designed to
stop the product in the event of an abnormality when
the product is started up.
▪ Replace two of the three phases (L1, L2, and L3)
during reverse-phase protection abnormality.
8 Hand-over to the user
Once the test run is finished and the unit operates properly, please
make sure the following is clear for the user:
▪ Make sure that the user has the printed documentation and ask
him/her to keep it for future reference. Inform the user that he can
find the complete documentation on the url as earlier described in
this manual.
▪ Explain the user how to properly operate the system and what to
do in case of problems.
▪ Show the user what to do in relation to maintaining the unit.
9 Maintenance and service
NOTICE
Maintenance must be done by an authorised installer or
service agent.
We recommend to do maintenance at least once a year.
However, applicable legislation might require shorter
maintenance intervals.
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO
2
-equivalent) is used to determine the maintenance
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
9.1 Overview: Maintenance and
service
This chapter contains information about:
▪ The yearly maintenance of the outdoor unit
9.2 Maintenance safety precautions
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
NOTICE: Risk of electrostatic discharge
Before performing any maintenance or service work, touch
a metal part of the unit in order to eliminate static electricity
and to protect the PCB.