Connect the cable to the indoor unit, Refrigerant pipe connection, Air purging and test operation – Perfect Aire 1PAMSH36-14.5 Installation Manual User Manual
Page 2: Connect the cable to the outdoor unit

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CONNECT THE CABLE TO THE INDOOR UNIT
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Minimum nominal cross-sectional area of conductors:
Rated current
of appliance
(A)
>3 and
6
>6 and
10
>10 and
16
>16 and
25
>25
Nominal cross-sectional
area
(mm2 )
0.75
1
1.5
2.5
4.0
The cable size and the current of the fuse
or switch are determined by the maximum
current indicated on the nameplate which is
located on the side panel of the unit.
Please refer to the nameplate before
selecting the cable, fuse and switch.
Install the outdoor unit on a rig id base to p revent increasing noise level and vibration.
Determine the air o utlet dire ction where the discharged air is not blocked.
In the case that the in stallation place is exposed to strong wind such as a seaside, make
sure the fan operates properly by putting the unit lengthwise along the wall or using a dust
or shield plate.
In windy area, install the unit to prevent the admission of wind. If need suspending
installation, the installation bracket should accord with technique requirement in the
installation bracket diagram. The installation wall should be solid brick, concrete or the same
intensity construction, or actions to reinforce, damping supporting should be taken.
The connection between bracket and wall, bracket and the air conditioner should be firm
,
stable and reliable.
Be sure there is no ob stacle which block radiating air.
Strong
wind
Strong
wind
Barrier
Incorrect
Correct
Seal
Drain joint
Base pan hole
of outdoor unit
(A)
(B)
The drain joint is slightly different according to the
different outdoor unit.
For the drain joint with the seal (Fig.A), first fit the seal onto
the drain joint, then insert the drain joint into the base pan
hole of outdoor unit, rotate 90 to securely assemble them.
To install drain joint as shown in Fig.B, insert the drain
joint into the base pan hole of outdoor unit until it remains
fixed with a clicking sound. Connecting the drain joint with
an extension drain hose (locally purchased), in case of the
water draining off the outdoor unit during the heating mode.
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DRAIN JOINT INSTALLATION
OUTDOOR INSTALLATION PRECAUTION
3
Oblique
O
90
Roughness
Burr
REFRIGERANT PIPE CONNECTION
Outer diam.
(Inch)
A(inch)
Max.
Min.
0.052
0.027
0.063
0.04
0.095
Bar
Copper pipe
Clamp handle
Handle
Bar
"A"
Indoor unit tubing
Flare nut
Pipings
Outer
diam in.
Tightening
torque(N.cm)
Additional tightening
torque(N.cm)
1/4
1/2
5/8
3/4
3/8
1500
(153kgf.cm)
1600
(163kgf.cm)
3500
(357kgf.cm)
4500
(459kgf.cm)
6500
(663kgf.cm)
3600
(367kgf.cm)
4700
(479kgf.cm)
6700
(683kgf.cm)
2500
(255kgf.cm)
2600
(265kgf.cm)
AIR PURGING AND TEST OPERATION
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5
Liquid side: 1/4
6.35mm
9k,12k,18k
R410A: 0.212 oz/ft
Liquid side: 3/8
9.52mm :
22k, 30k, 36k
R410A: 0.423 oz/ft
Connective pipe length
Less than 16.41ft(5m)
More than 16.41ft(5m)
Air purging method
Use vacuum pump
Additional amount of refrigerant to be charged
Open the valve stem until it hits against
the stopper. Do not try to open it further.
Securely tighten the valve stem cap with
a spanner or the like.
Valve stem cap tightening torque. See
Tightening Torque Table.
Flare nut
Stopper
Cap
Valve body
Valve stem
Use vacuum pump
For the R407C refrigerant model, make sure the refrigerant added into air conditioner is liquid
form in any case.
When relocating the unit to another place, use vacuum pump to perform evacuation.
Air and moisture in the refrigerant system have undesirable effects. Therefore, the indoor unit
and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove
any noncondensables and moisture from the system.
Check that each tube (both liquid and gas side tubes) between the indoor and outdoor units have
been properly connected and all wiring for the test run has been completed.
Pipe length and refrigerant amount:
Outdoor
unit
Indoor
unit
Refrigerant
Packed valve
Half union
Gas side
Liquid side
A
C
D
B
1. Completely tighten the flare nuts, A, B, C, D, Connect
the manifold valve charge hose to a charge port of the
packed valve on the gas pipe side.
2. Connect the charge hose connection to the vacuum
pump.
3. Fully open the handle Lo of the manifold valve.
4. Operate the vacuum pump to evacuate. After starting
evacuation, slightly loosen the flare nut of the packed
valve on the gas pipe side and check that the air is
entering. (Operation noise of the vacuum pump changes
and a compound meter indicates 0 instead of minus)
5. After the evacuation is complete, fully close the handle
Lo of the manifold valve and stop the operation of the
vacuum pump.
Make evacuation for 15 minutes and more and check
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that the compound meter indicates -76cmHg(-1.0x10 Pa).
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6. Turn the stem of the packed valve B about 45 counter-
clockwise for 6~7 seconds after the gas coming out, then
tighten the flare nut again. Make sure the pressure display
in the pressure indicator is a little higher than the atmosphere
pressure.
7. Remove the charge hose from the Low pressure charge hose.
8. Fully open the packed valve stems B and A.
9. Securely tighten the cap of the packed valve.
Manifold valve
Compound meter
-76cmHg
Handle Lo
Handle Hi
Charge hose
Charge hose
Vacuum pump
Pressure gauge
Packed valve
Perform test operation after completing gas leak check at the flare nut connections and electrical
safety check.
Check that all tubing and wiring have been properly connected.
Check that the gas and liquid side service valves are fully open.
1. Connect the power ,press the ON/OFF button on the remote control to turn the unit on.
2. Use the MODE button to select COOL, HEAT, AUTO and FAN to check if all the functions work
well.
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3. When the ambient temperature is too low (lower than 62.6
17 C)), the unit cannot be controlled by
the remote control to run at cooling mode, manual operation can be taken. Manual operation is
used only when the remote control is disabled or maintenance necessary.
Hold the panel sides and lift the panel up to an angle until it remains fixed with a clicking sound.
Press the Manual control button to select the AUTO or COOL, the unit will operate under Forced
AUTO or COOL mode (see User Manual for details).
4. The test operation should last about 30 minutes.
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F(
1.Air purging
2. When using the Vacuum Pump
4. Test running
3. Safety and leakage check
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.
CAUTION
1. Soapy water method:
Apply a soapy water or a liquid neutral detergent on the indoor
unit connections and outdoor unit connections by a soft brush
to check for leakage of the connecting points of the piping. If
bubbles come out, it indicates that the pipes have leakage.
2. Leak detector
Use the leak detector to check for leakage.
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CONNECT THE CABLE TO THE OUTDOOR UNIT
CAUTION
1
Indoor unit
check point
D
B
C
A
Outdoor unit
check point
Cover
NOTE:
1. The inside and outside connecting cable can be connected without removing the front grill.
2.The connecting cable required is: 14AWG, 600V, 4-conductor, direct burial, sun resistant.
3. Lift the indoor unit panel up, remove the electrical box cover by loosening the screw.
4. Ensure the color of wires of outdoor unit and the terminal Nos. are the same to the indoor units
respectively.
5. Wrap those cables not connected with terminals with insulation tape, so that they will not touch
any electrical components. Secure the cable onto the control board with the cord clamp.
NOTE:
Panel
Electrical box
cover
Terminal block of indoor unit
Terminal block of outdoor unit
NOTE: The air conditioner can be connected only to a supply with system impedance no
more than 0.0538 ohm. In case necessary, please consult your supply authority for system
impedance information.
Cover
Screw
Manual control
Button
AUTO/COOL
To outdoor unit
G
2(N)
To outdoor unit
Or
To indoor unit
To indoor unit
To power supply
To power supply
L1 L2 S L1 L2
L1 L2 S L1 L2
(1)
(2)
Electrical work
1/4
3/8
1/2
5/8
3/4
0.071
0.087
0.04
0.08
0.08
Tightening connection
Electric safety regulations for the initial Installation
1. If there is any safety concerns with the electrical power supply the technician should consult a
certified electrician and have the problem resolved before installing the unit.
2. Power voltage should be in the range of 90%~110% of rated voltage.
3. The circuit breaker at the electrical panel should be no more than 1.5 times the max current of the
outdoor unit. All the electrical information is located on the reverse side of the electrical cover on the
on the outdoor unit. Follow all local and national electric codes.
4. Each outdoor unit must have its own circuit breaker.
5. Install the proper sized electrical wire from the circuit breaker located at the electrical panel to an
outdoor weather proof disconnect.
6. The outdoor unit must be grounded per code. If the unit is not grounded it will not operate per
system specifications.
7. Install a liquid tight electrical whip from the outdoor disconnect to the outdoor unit.
8. All wiring must comply with local and national codes and be installed by a certified electrician.
Connect the cable to the indoor unit
Before performing any electrical work, turn off the power at the main panel to the unit.
NOTE:
1. Remove the eclectrical control board cover from the outdoor unit by loosening the screw.
2. Attach the electrical whip from the outdoor disconnect to the proper connections shown in
the wiring diagram.
3. Connect the cable from the indoor unit as identified with their respective matching numbers
on the terminal block of the indoor unit.
4. Secure the cables on the control board with the supplied clamp.
5. Do not allow any bare wires to touch any other wires or metal parts.
Flaring
1. Cut the copper tube with a pipe cutter. Clean and
remove any burrs from the end of the pipe.
2. Remove the flare nuts attached to the indoor and
outdoor unit. Slide the nuts on the copper tube.
3. Insert copper tube into a flaring block and use the
table to determine how much tube should be above
the block before flaring the tube. You can also figure
the thickness of a nickel to use as a standard.
Align the tube to the proper connections on
the indoor and outdoor units.
Sufficiently tighten the flare nut with fingers,
and then tighten it with a crescent wrench and
torque wrench as shown.
Excessive torque can break nut depending
on installation conditions.