Daikin 2MXL18QMVJU Installation Manual

17 ■English
Trial Operation and Testing
• Before starting the trial operation, measure the voltage at the primary side of the circuit breaker.
• Check that all liquid and gas stop valves are fully open.
• Check that piping and wiring all match. The wiring error check can be conveniently used for underground wiring and other wiring
that cannot be directly checked. However, if the outside air temperature is
41°F(5°C)orless , the wiring error check function
will not operate.
1. Wiring error check
This product is capable of automatic correction of wiring errors.
Press the wiring error check switch on the outdoor unit service PC-board for about
3seconds.However,thewiringerrorcheckswitchwillnotfunctionfor3minutesafterthe
safety breaker is turned on. About 15-20 minutes after the switch is pressed, the errors in
the connection wiring will be corrected.
TheservicemonitorLEDsindicatewhetherornotcorrectionispossible,as
showninthetablebelow.FordetailsonhowtoreadtheLEDdisplay,referto
the collective indications label on the reverse side of the top plate or the service
manual.
If self-correction is not possible, check the indoor unit wiring and piping in the usual
manner.
Service PC-board
A
1
2
3
4
5
Wiring error
check switch
(SW3)
LED
Status
1 2 3 4
All Flashing
Automatic correction impossible
Automatic correction completed
Abnormal stop [Note. 3]
Message
Flashing One after another
(One or more of LEDs 1 to 4 are ON)
Terminal block
Wiring error check
LED lighting sequence after a wiring correction.
Order of LED flashing: 2
1 3 4
From Room C
to the “kitchen”
From Room B
to the “living room”
From Room D
to the “children’s room”
From Room A
to the “bedroom”
Wiring correct example
The figure at left shows branch wiring.
NOTE
1) Fortworooms,LED3,4and5arenotdisplayed,andforthreerooms,LED4and5isnotdisplayed,andforfourrooms,
LED5isnotdisplayed.
2) Afterwiringerrorcheckoperationiscompleted,LEDindicationwillcontinueuntilordinaryoperationstarts.Thisisnormal.
3) Follow the product diagnosis procedures. (Details of product error diagnosis are listed on the reverse side of the top plate.)
01_EN_3P379970-8B.indd 17 11/17/2015 9:11:18

Daikin 2MXL18QMVJU Specifications

General

Brand	Daikin
Model	2MXL18QMVJU
Category	Air Conditioner
Language	English