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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.
Cooling
A
∗
115
95
∗
<a>
B
23
50
57
67
77
82
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).)
Model
RZQ24MVJU RZQ30MVJU RZQ36MVJU RZQ42MVJU
Refrigerant
Power
Cooling capacity
(MBh)
24
Heating capacity
(MBh)
27
Dimensions
(inch)
52 15/16 × 35 7/16 × 12 5/8
H × W × D
Weight
(lb.)
Connections
Gas
(inch)
Liquid
(inch)
2-3 Electrical specifications
(∗<c> in the table indicate the operating condition (shown in the
figure bottom left).)
Model
RZQ24MVJU RZQ30MVJU RZQ36MVJU RZQ42MVJU Precaution
Power
Phase
Frequency
(Hz)
Voltage
(V)
Voltage
(%)
torerance
Rated current
(A)
of fuse
Compressor
Phase
Frequency
(Hz)
Voltage
(V)
Min. Circuit Amps.
(A)
Heating
C
<c>
60
∗
<b>
50
43
41
5
D
– 4
50
59
70
81
R410A
Precaution
208-230V 60Hz
∗<a>
30
36
42
33
38
45
∗<b>
310
5/8
3/8
~
60
208-230
±10
30
3~
60
208-230
∗<c>
27.0
3
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