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Installation manual

16

250C7Y1B

Split system air conditioner

4PW34720-1G – 07.2010

9.4.

Test operation

Check the stop valves
Make sure to open the gas and liquid line stop valves.

For details on test operation, refer to the indoor unit installation
manual.

Pre-run checks

1

Make sure the liquid and gas shut-off valves are open.

Be sure to close the frontside panel before operation, as not
doing so can cause electric shock.
-

The refrigerant pressure may not rise, even if the shut-off 
valve is opened after an air purge is performed using a 
vacuum pump.
This is because the indoor unit refrigerant piping is closed off
with electric valves inside. This will not create any problems
during operation.

2

To protect the compressor, make sure to turn on the power
supply 6 hours before starting operation.

Test operation from remote controller

1

Be sure to set it to cooling and press the operation switch.

2

Press the inspection/test-run switch on the remote control to put
the machine into test-run mode.

Test operation from outdoor PCB BS4 test button

3

Make sure to set the remote controller to fan mode, press the

 button first and then press the operation switch.

4

Press the 

 button for 5 seconds (or longer when the

unit is at standstill). The test operation starts when the H2P LED
blinks and the remote controller indicates 

 (test operation).

5

Make sure the compressor is not starting and stopping during
the test-run by listening. If it is starting and stopping,
immediately stop the machine using the remote control, and
check the refrigerant level, etc. There may be some sort of
malfunction.

After the test operation (maximum 30 minutes), the unit automatically
stops. Check the operation results by the outdoor unit LED indication.

Defect judgement

Judgement can be done by HAP, H1P on the PCB (A1P) if the
power supply is turned on.

NOTE

After turning on the power supply, the unit cannot be
started until the H2P initialisation LED goes off
(maximum 12 minutes).

Items to check

Electrical wiring
Inter-unit wiring
Ground wire

Is the wiring as mentioned on the wiring
diagram?
Make sure no wiring has been forgotten
and that there are no missing phases or
reverse phases.

Is the unit properly grounded?

Are any of the wiring attachment screws
loose?

Is the insulation resistance at least 2 M

Ω

?

-

Use a 500 V mega-tester when 
measuring insulation.

-

Do not use a mega-tester for circuits 
which are not 230 V.

Refrigerant piping

Is the size of the piping appropriate?

Is the insulation material for the piping
attached securely?
Are both the liquid and gas pipes
insulated?

Are the shut-off 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?

 

Opening direction

A

Liquid side

B

Gas side

Remove the cap and turn 
counterclockwise with a 
hex wrench until it stops

A

B

NOTE

When you want to terminate the test operation,
press the 

 button. The unit will keep

running for 30 seconds and then stops. During
test operation it is impossible to stop the unit with
the remote controller.

The test operation will automatically switch to
cooling mode for 3 minutes. The test opereation
will stop for 3 minutes and then switch to heating
when heating mode was selected (only during first
installation).

HAP

(green)

H1P

(orange)

Content

 

c

 

x

Normal

 

w

Outdoor PCB is defect (see NOTE 1)

 

x

Power supply abnormality or PCB is defect 
(see NOTE 2)

 

c

 

w

Protection equipment is active (see NOTE 3)

NOTE

1

Turn the power off for more than 5 seconds. 
Switch the power back on. If this was realized,
confirm your judgement.

2

Turn the power off for more than 5 seconds.
Disconnect the indoor-outdoor connection wire 3.
Switch the power back on for more than 10
seconds.
If the outdoor PCB HAP LED is blinking the indoor
PCB is not working correct.

3

Indication of a possible negative phase.

The abnormality detection continuously indicates the
past abnormal history untill power supply is shut off.

After the test operation is finished, check the indoor
units via the remote controller.

The LED indication changes during this operation, but
that is not abnormal.

Please attach the front plate of the oudoor unit in
order to prevent incorrect judgement during operation.

BS1  MODE

BS4  TEST

BS3  RETURN

Summary of Contents for RZQ200C7Y1B

Page 1: ...INSTALLATION MANUAL RZQ200C7Y1B RZQ250C7Y1B Split system air conditioner ...

Page 2: ...H1 L1 H1 H2 L3 L1 L2 H1 H2 L4 L1 L3 L2 H1 H2 L7 L1 L6 L5 L4 L3 L2 4 3 1 3 4 2 2 mm 5 3 1 0 0 0 1000 1 50 0 1500 1500 2 1 2 10 14 A 1 3 0 3 0 4 2 3 1 E B C D H A 18 16 17 h1 h2 1500 500 1 2 3 4 5 1 2 3 1 2 3 4 5 4 1 2 4 5 3 5 3 3 1 13 6 9 8 1 2 4 3 5 14 15 16 12 11 10 7 3 2 8 6 4 8 1 3 2 7 8 9 8 10 11 8 8 8 5 9 1 A B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ...

Page 3: ...responsabilidade que os modelos de ar condicionado a que esta declaração se refere 09 u заявляет исключительно под свою ответственность что модели кондиционеров воздуха к которым относится настоящее заявление 10 q erklærer under eneansvar at klimaanlægmodellerne som denne deklaration vedrører 11 s deklarerar i egenskap av huvudansvarig att luftkonditioneringsmodellerna som berörs av denna deklarat...

Page 4: ...atalapainepuolen lämpötila L C TSmax Suurinta sallittua painetta PS vastaava kyllästyslämpötila M C Kylmäaine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi 14 Maximální přípustný tlak PS K bar Minimální maximální přípustná teplota TS TSmin Minimální teplota na nízkotlaké straně L C TSmax Saturovaná teplota odpovídající maximálnímu přípustnému tlaku PS...

Page 5: ...ontside panel is not in place overheat of the terminals electric shocks or a fire may be caused If refrigerant gas leaks during installation work ventilate the area immediately Toxic gas may be produced if refrigerant gas comes into contact with fire After completing the installation work check to make sure that there is no leakage of refrigerant gas Toxic gas may be produced if refrigerant gas leak...

Page 6: ... 4 There is no danger of fire due to leakage of inflammable gas 5 Ensure that water cannot cause any damage to the location in case it drips out the unit e g in case of a blocked drain pipe 6 The piping length between the outdoor unit and the indoor unit may not exceed the allowable piping length 7 Select the location of the unit in such a way that neither the discharged air nor the sound generated ...

Page 7: ...oise generated from radio frequency energy The equipment complies to specifications that are designed to provide reasonable protection against such interference However there is no guarantee that interference will not occur in a particular installation It is therefore recommended to install the equipment and electric wires keeping proper distances away from stereo equipment personal computers etc S...

Page 8: ...rant piping Therefore use the phosphor copper brazing filler metal BCuP which does not require flux Flux has extremely harmful influence on refrigerant piping systems For instance if the chlorine based flux is used it will cause pipe corrosion or in particular if the flux contains fluorine it will damage the refrigerant oil Be sure to perform a nitrogen blow when brazing Brazing without performing nitro...

Page 9: ...g Perform a visual check on quality of residual oil in existing refrigerant piping This check is extremely important because using existing piping with deteriorated oil will cause compressor breakdown Put some residual oil of the pipes you want to reuse on a piece of white paper or on the white surface of an oil checking reference card and compare that oil color with the circled color of the oil c...

Page 10: ...all gas and oil is recovered from the pinched piping disconnect the charge hose and close the service ports 5 In case the pinched piping lower part looks like detail in the illustration follow instructions as per procedure steps 7 8 In case the pinched piping lower part looks like detail in the illustration follow instructions as per procedure steps 6 7 8 6 Cut off the lower part of the smaller pi...

Page 11: ... over a long period of time rainwater may enter the pipe during work After evacuating the system for 2 hours pressurize the system to 0 05 MPa vacuum break with nitrogen gas and evacuate the system again using the vacuum pump for 1 hour to 100 7 kPa vacuum drying If the system cannot be evacuated to 100 7 kPa within 2 hours repeat the operation of vacuum break and vacuum drying Then after leaving ...

Page 12: ...t leaks are present 7 12 Additional refrigerant charge Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not vent gases into the atmosphere Refrigerant type R410A GWP 1 value 1975 1 GWP global warming potential Please fill in with indelible ink the factory refrigerant charge of the product the additional refrigera...

Page 13: ...pipe length of that pipe diameter by multiplying that length by the appropriate calculation coefficient Take note of the calculated weight 6 Repeat step 5 for other pipe diameters in function of other pipe diameter pipe lengths downstream to the indoor units and add up all calculated weights 7 The sum of all calculated weights is the total required additional refrigerant charge for your installatio...

Page 14: ...sible when the power supply is switched off 2 Turn the power supply on and charge only the amount of lacking refrigerant 3 Completely open the gas line stop valve See figure 15 and refer to Airtightness test and vacuum drying on page 7 for nomenclature of the parts in figure 15 Valve A must be left fully closed Make sure the liquid stop valve is totally shut If it is open the refrigerant cannot be c...

Page 15: ... wiring must be carried out in accordance with the wiring diagrams and the instructions given below Be sure to use a dedicated power circuit Never use a power supply shared by another appliance This can lead to electrical shock or fire Insufficient capacity of the power supply circuit or improper electrical construction may lead to electric shocks or fire Do not operate until refrigerant piping work ...

Page 16: ... hard plastic piping is used Telephone ground wires and lightning rods dangerous when struck by lightning due to abnormal rise in electrical potential in the grounding This unit uses an inverter and therefore generates noise which will have to be reduced to avoid interfering with other devices The outer casing of the product may take on an electrical charge due to leaked electrical current which w...

Page 17: ...en routing out the ground wires from the left side 10 Grounding wire 11 When wiring pay attention not to detach the acoustic insulators from the compressor Precautions when installing power wiring Use round pressure terminals for connections to the power terminal block When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block S...

Page 18: ...not pass near each other keeping them at least 50 mm apart Proximity may cause electrical interference malfunctions and breakage Be sure to connect the power wiring to the power wiring terminal block and secure it as described under Field line connection on page 13 Inter unit wiring should be secured as described in Field line connection in chapter 8 5 Examples on page 13 Secure the wiring with th...

Page 19: ...s and buttons Led state Throughout the manual the state of the LEDs is indicated as follows Setting the DIP switches Setting the push button switch BS1 5 Function of the push button switch which is located on the outdoor unit PCB A1P Setting the mode 2 The set mode can be changed by pressing the button for 5 seconds The setting mode will change to setting mode 2 and the H1P LED will be ON w Exitin...

Page 20: ...d wire Is the wiring as mentioned on the wiring diagram Make sure no wiring has been forgotten and that there are no missing phases or reverse phases Is the unit properly grounded Are any of the wiring attachment screws loose Is the insulation resistance at least 2 MΩ Use a 500 V mega tester when measuring insulation Do not use a mega tester for circuits which are not 230 V Refrigerant piping Is t...

Page 21: ...ply and the outdoor unit with the circuit breaker After the power supply to one side is cut off cut off the power supply to the other side within 10 minutes Otherwise the communication between the indoor and outdoor unit may become abnormal and the expansion valves will be completely closed again 3 Recover the refrigerant by a refrigerant reclaimer For details see the operation manual delivered wi...

Page 22: ...d so until the result falls short of the maximum concentration 4 Dealing with the situations where the result exceeds the maximum concentration level Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be necessary to revise the system 5 Please consult your supplier 12 DISPOSAL REQUIREMENTS Dismantling of the unit treatment of t...

Page 23: ...20 22 21 19 1 2 5 3 3 5 4 4 1 2 3 4 5 24 23 5 1 7 10 3 2 9 6 6 7 4 11 8 6 NOTES 3 1 2 3 2 6 4 A 3 2 1 6 5 4 3 L1 L2 L3 N 1 3 4 2 8 9 6 5 7 20 21 22 23 24 19 ...

Page 24: ...4PW34720 1G 07 2010 Copyright 2006 Daikin ...

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