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3

CAUTION

While following the instructions in this installation manual, 
install drain piping in order to ensure proper drainage and insu-
late piping in order to prevent condensation.

Improper drain piping may result in water leakage and property dam-
age.

Be very careful about product transportation.

Do not touch the refrigerant pipes during and immediately after 
operation.

During and immediately after operation, the refrigerant pipes may be 
hot and may be cold, depending on the condition of the refrigerant 
flowing through the refrigerant piping, compressor, and other refrig-
erant cycle parts. Your hands may suffer burns or frostbite if you 
touch the refrigerant pipes.

Do not turn off the power immediately after stopping operation. 

Always wait at least five minutes before turning off the power. Other-
wise, water leakage and trouble may occur.

Do not use a charging cylinder.

Using a charging cylinder may cause the refrigerant to deteriorate.

The refrigerant R410A requires strict cautions for keeping the 
system clean, dry and tight.

A.Clean and dry

Foreign materials (including mineral oils such as SUNISO oil or
moisture) should be prevented from getting mixed into the system.

B.Tight

R410A does not contain any chlorine, does not destroy the ozone
layer, and does not reduce the earth’s protection against harmful
ultraviolet radiation.
R410A can contribute slightly to the greenhouse effect if it is released.
Therefore we should take special attention to check the tightness of
the installation.
Read the chapter “Refrigerant piping work” carefully and follow
these procedures correctly.

Since R410A is a mixed refrigerant, the required additional 
refrigerant must be charged in its liquid state. (If the refrigerant 
is charged in a state of gas, its composition changes and the 
system will not work properly.)

The indoor unit is for R410A. See the catalog for indoor unit models
which can be connected.
(Normal operation is not possible when connected to other units.)

For installation of the indoor units, refer to the installation man-
ual supplied together with each indoor unit.

Never operate the air conditioner with the discharge pipe ther-
mister (R3T), suction pipe thermister (R2T) and pressure sen-
sors (S1NPH, S1NPL) removed. 

 

Such operation may burn out the compressor.

Make sure to provide for adequate measures in order to prevent 
that the outdoor unit be used as a shelter by small animals.

Small animals making contact with electrical parts can cause mal-
functions, smoke or fire. Please instruct the customer to keep the 
area around the unit clean.

NOTE

Install the indoor and outdoor units, power supply wiring and 
transmission wiring at least 3.5ft. away from televisions or 
radios in order to prevent image interference or noise.

(Depending on the radio waves, a distance of 3.5ft. may not be 
enough to eliminate the noise.)

Dismantling of the unit, treatment of the refrigerant, oil and 
eventual other parts, should be done in accordance with the rel-
evant local and national regulations.

Do not use the following tools that are used with conventional 
refrigerants. (Gauge manifold, charge hose, gas leak detector, 
reverse flow check valve, refrigerant charge base, vacuum 
gauge, refrigerant recovery equipment.)

If the conventional refrigerant and refrigerator oil are mixed in the 
R410A, the refrigerant may deteriorated.

Never perform outdoor unit piping connection work when it is 
raining.

〈〈〈〈

Safety Precaution

〉〉〉〉

The PCI Data Station is a class A product. In a domestic environment 
this product may cause radio interference in which case the user may 
be required to take adequate measures.

2. INTRODUCTION

2-1 Standard operation limit

The figures below assume following operating conditions for indoor and 

outdoor units:

Equivalent pipe length...................... 25 ft.

Level difference................................ 0 ft.

A

Outdoor temperature (°FDB)

B

Indoor temperature (°FWB)

C

Outdoor temperature (°FWB)

D

Indoor temperature (°FDB)
Range for continuous operation
Range for pull down operation
Range for warming up operation
Range for operation

2-2 Technical specifications

(

<a> and 

<b>  in the table indicate the operating condition (shown in 

the figure bottom left).)

2-3 Electrical specifications

(

<c> in the table indicate the operating condition (shown in the 

figure bottom left).)

Model

RZQ24MVJU RZQ30MVJU RZQ36MVJU RZQ42MVJU

Precaution

Refrigerant

R410A

Power

208-230V 60Hz 

Cooling capacity

(MBh)

24

30

36

42

<a>

Heating capacity

(MBh)

27

33

38

45

<b>

Dimensions

(inch)

52 15/16 × 35 7/16 × 12 5/8

H × W × D
Weight

(lb.)

310

Connections

Gas

(inch)

5/8

Liquid

(inch)

3/8

Model

RZQ24MVJU RZQ30MVJU RZQ36MVJU RZQ42MVJU

Precaution

Power

Phase

~

Frequency

(Hz)

60

Voltage

(V)

208-230

Voltage 
torerance

(%)

±10

Rated current
 of fuse

(A)

30

Compressor

Phase

3~

Frequency

(Hz)

60

Voltage

(V)

208-230

Min. Circuit Amps.

(A)

27.0

<c>

Cooling

Heating

<b>

B

<c>

A

C

D

<a>

– 4

5

59

115

41

50

50

43

70

95

81

50

23

77

60

67

82

57

01_EN_3PN05597-5R.fm  Page 3  Wednesday, September 14, 2005  8:35 PM

Summary of Contents for RZQ24MVJU

Page 1: ...instructions carefully before installation Keep this manual in a handy place for future reference This manual should be left with the equipment owner SPLIT SYSTEM Air Conditioners INSTALLATION MANUAL 00_CV_3PN05597 5R fm Page 1 Friday September 2 2005 4 06 PM ...

Page 2: ...h by suffocation WARNING Ask your dealer or qualified personnel to carry out installation work Do not try to install the machine by yourself Improper installation may result in water leakage electric shocks or fire Perform installation work in accordance with this installation manual Improper installation may result in water leakage electric shocks or fire Be sure to use only the specified accesso...

Page 3: ...revent that the outdoor unit be used as a shelter by small animals Small animals making contact with electrical parts can cause mal functions smoke or fire Please instruct the customer to keep the area around the unit clean NOTE Install the indoor and outdoor units power supply wiring and transmission wiring at least 3 5ft away from televisions or radios in order to prevent image interference or n...

Page 4: ... is deteriorated The adhered frost increases during heating operation The operation is stopped by pressure rise If excessive strong wind continuously blows from the air outlet side of the outdoor unit the fan may rotate in the reverse direction at high speed and lead to damage Install the outdoor unit in ref erence to the following figures Position the air outlet side toward the building wall fenc...

Page 5: ...ruction is present on the both sides 2 When two or more outdoor units are installed side by side When an obstruction is present on the both sides When an obstruction is present also in the upward area 1 When one outdoor unit is installed individually When an obstruction is present also on the air inlet side When an obstruction is present also on the air inlet side and both sides 2 When two or more...

Page 6: ... L and A is as shown in the table below NOTE 1 Close the area under the frame so that the outlet air does not bypass there 2 Only two outdoor units can be installed side by side Pattern 2 When an obstruction on the air outlet side is lower than the outdoor unit There is no restriction in the height of obstruction on the air inlet side When the upward area is open 1 When one outdoor unit is install...

Page 7: ...unit so that the outlet air does not bypass there 2 When an obstruction is present on the air inlet side NOTE 1 Only two outdoor units can be stacked 2 About 4 in is required as the drain piping size for the upper out door unit 3 Close the area Z gap between the upper outdoor unit and the lower outdoor unit so that the outlet air does not bypass there E When outdoor units are installed in rows on ...

Page 8: ...ion Flux containing fluorine will damage refrigerant oil NOTE Maximum piping length between the outdoor and indoor unit is 230ft Installation tools Make sure to use installation tools gauge manifold charge hose etc that are exclusively used for R410A installations to withstand the pressure and to prevent foreign materials e g mineral oils such as SUNISO and moisture from mixing into the system The...

Page 9: ...gure below When connecting the pipings downward remove the knockout by making four holes in the middle on the each side of the knockout with a drill Then cut out the corner of the bottom frame along the slits in two positions by using a hacksaw After removing the parts it is recommended to apply repair paint on the edges to prevent rusting Make sure that the field pipings do not touch the terminal...

Page 10: ...ump for 1 hour to achieve 14 6 psi or less vacuum drying If the vacuum pressure does not reach 14 6 psi or less even after evacuation for 2 hours or more repeat vacuum break and vacuum dry ing Leave the air conditioner in the vacuum status for 1 hour or more and confirm that the vacuum pressuree indicated by the vacuum gauge does not increase 6 7 Additional refrigerant charge WARNING To avoid inju...

Page 11: ...g rods because incomplete grounding could cause a severe shock hazard resulting in severe injury or death and to gas pipes because a gas leak could result in an explosion which could lead to severe injury or death WARNING Disconnect all power to unit to avoid possible electric shock during installation Use only specified wire and connect wires to terminals tightly Be careful that wires do not plac...

Page 12: ...al noise and malfunction or fail Be sure to connect the power supply wiring to the terminal block and secure it as described in 7 3 Power supply wiring connection procedure Fix the wiring between the units in accordance with 7 4 Transmission wiring connection procedure Secure the wirings with the clamps accessory so that do not touch the piping Make sure the wirings will not be pinched by the fron...

Page 13: ...tions below If they are not observed transmission error may occur Maximum wiring length 3280 ft Never connect 208 230V to the terminal block for the transmission wiring Doing so will break the entire system The transmission wiring from the indoor unit must be connected to the F1 F2 TO IN D UNIT terminals on the PC board in the outdoor unit Make sure to use sheathed two core cables of AWG18 16 in t...

Page 14: ...ck operation the status of the outdoor unit is checked and incorrect wiring is checked for Make sure to turn on the power 6 hours before starting operation for supplying the power to the crankcase heater Caution One outdoor unit installed H1P H5P H4P H6P H7P H2P H3P HAP Blinking ON OFF LED display LED display Default status before delivery Donotleaveanyshutoff valveclosed Otherwisethecompressor wi...

Page 15: ...lled a malfunction code U3 is displayed In this case perform the check operation by referring to 9 1 Power on and check operation Check a malfunction code in the remote controller connected to the indoor unit When a malfunction code is displayed in the remote controller Malfunction code Cause Solution E3 The stop valves in the outdoor unit remain closed Open the stop valve on both the gas and liqu...

Page 16: ... lb of the refrigerant gas in 1ft 3 volume of the occupied space Compliance to the local applicable regulations and standards for the maximum allowable concentration level is required Pay a special attention to the place such as a basement etc where refrigerant can stay since refrigerant is heavier than air Procedure for checking maximum concentration Check the maximum concentration level in accor...

Page 17: ...1645 Wallace Drive Suite 110 Carrollton TX 75006 info daikinac com www daikinac com 0510 HT 3PN05597 5R EM04A040B 00_CV_3PN05597 5R fm Page 2 Friday September 2 2005 4 06 PM ...

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