Indoor unit
terminal strip
Outdoor unit
terminal strip
4C
(NOT INCLUDED)
16 AWG
2
30K unit: 12 AWG 3C
36K unit: 10 AWG 3C
(NOT INCLUDED)
208/230 VAC
LINE
IN
1
S
2
1
S
G
L1
L2
G
L1
L2
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ELECTRICAL WIRING - INDOOR UNIT
4
Electrical safety regulation
1. Supply voltage should be in the range of 90% to 110% of rated voltage.
2. Check specification label on outdoor unit for the breaker size.
3. Ensure the system is properly grounded.
4. Connections must be as the wiring diagram.
5. All wiring must be in compliance with all local and national electrical codes.
6. Installer to be certified in accordance with local codes.
The cable size and the current of the
fuse or switch are determined by the
maximum current indicated on the
product label which located on the
side panel of the unit.
Please refer to the product label before
selecting the cable, fuse and switch.
Install the outdoor unit on a rigid base.
Confirm the discharge air outlet direction is not blocked.
If the outdoor unit is exposed to strong wind such as a seaside, make sure the fan can operate
properly by placing the unit lengthwise along the wall or install a wind shield.
See example of wind protection below.
Be sure there is no obstacle which may block exhaust air.
Strong
wind
Strong
wind
Barrier
Incorrect
Correct
Seal
Drain joint
Base pan hole
of outdoor unit
(A)
(B)
The drain joint may vary with different models.
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 degrees to securely assemble.
To install drain joint as shown in Fig.B, insert the drain
joint into the base pan hole of outdoor unit until it clicks into
position.
Connecting the drain joint with an extension drain hose (not supplied).
6
DRAIN JOINT INSTALLATION
OUTDOOR UNIT INSTALLATION
7
Oblique
O
90
Roughness
Burr
REFRIGERANT PIPE CONNECTION
1. Cut the copper tubing with a sharp tubing cutter.
2. Remove flare nuts attached to indoor and
outdoor unit and place them on the copper tubing
after removing all burrs and flare
the copper tubing.
3. Firmly hold copper pipe in a die in the
dimension shown in the table below.
.
Align pipes to be connected.
Tighten the flare nut with fingers,
and then tighten it with a spanner and torque
wrench as shown.
Excessive torque can break nut depending
on installation conditions.
Outer diam.
(inch)
A(inch)
Max.
Min.
3/8"
0.063"
0.039"
5/8"
0.087"
0.079"
Bar
Copper pipe
Clamp handle
Handle
Bar
"A"
Indoor unit tubing
Flare nut
Pipings
.
Outer
diam.
Tightening
torque(lbs.ft)
Additional tightening
torque(lbs.ft)
φ
5/8"
φ
3/8"
33.2
(459kgf.cm)
34.7
(479kgf.cm)
18.4
(255kgf.cm)
19.2
(265kgf.cm)
AIR PURGING AND TEST OPERATION
8
9
1. Remove the electrical cover from the outdoor unit by removing the mounting screws.
2. Connect the cables to the terminals as identified with their respective matched numbers
on the terminal block of indoor and outdoor units.
3. Secure the cable to the terminal strip with the cord clamp.
4. To prevent the ingress of water, form a loop of the connective cable as illustrated in the installation
diagram of indoor and outdoor units.
5. Insulate unused cords (conductors) with PVC-tape. Process them so they do not touch any electrical
or metal parts.
Liquid side:
φ
3/8"
R410A: (Design length - 16.4 ft) x 0.43 oz./ft.
Connective pipe length
Less than 16.4 ft.
More than 16.4 ft.
Air purging method
Use vacuum pump
Additional amount of refrigerant to be charged
Open the valve stem until it fully opens to
the stop. 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
DO NOT EXCEED THE SPECIFIED MAXIMUM LINE LENGTH - SEE PRODUCT LABEL.
The service ports have a 5/16" connection to gauges.
When relocating the system to another location, using vacuum pump to perform evacuation
and leak testing..
.
.
.
Air and moisture in the refrigerant system will damage the operation of the system and reduce the life
of the compressor. Therefore, the indoor unit and tubing between the indoor and outdoor unit must be
leak tested and evacuated to remove any non-condensables 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 loose 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.
Evacuate for 15 minutes or more and check the
indicating gauge is -76cmHg(-14.7 psi).
O
6. Turn the stem of the packed valve B about 45 counter-
clockwise for 6~7 seconds after the gas exits, 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. Replace the valve caps of the service ports.
Manifold valve
Compound meter
-76cmHg
Handle Lo
Handle Hi
Charge hose
Charge hose
Vacuum pump
Pressure gauge
Packed valve
Perform test operation after completing refrigerant leak check at the flare
nut connections and electrical safety check.
Check that all tubing and wiring have been properly connected and tight.
Check that the gas and liquid side service valves are fully open.
1. Connect the power, press the ON/OFF button on the remote
controller to turn the unit on.
2. Use the remote to select COOL, HEAT, AUTO and FAN and
confirm all the functions operate properly..
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3. When the room ambient temperature is too low (lower than 62 F),
the unit cannot be controlled by the remote controller in the cooling
mode, manual operation must be used. Manual operation is used only when the remote controller is
disable or maintenance is necessary.
Hold the panel sides and lift the panel up to an angle until it remains open (clicking sound).
Press the Manual control button to select the AUTO or COOL, the unit will operate under
AUTO or COOL mode (see User Manual for details).
4. Test should last about 30 minutes.
Electrical wor k
Connect the cable to the indoor unit
Flaring
Tightening connection
1. Air purging
2. W hen using the Vacuum Pump
4. Operation Testing
3. Safety and leak test
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.
CAUTION
1. Soap water method:
Apply a soap/water solution or a liquid detergent to the indoor line set
connections and outdoor service port connections with a soft brush
to check for leakage of the connecting points of the tubing. If bubbles
are observed, it indicates leakage and must be immediately corrected.
2. Leak detector
Use the leak detector to check for leakage.
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ELECTRICAL WIRING - OUTDOOR UNIT
CAUTION
5
Indoor unit
check point
D
B
C
A
Outdoor unit
check point
Cover
NOTE:
Before performing any electrical work, turn the systems main power off.
1. The inside and outside connecting cable can be connected without removing the front grille.
2. The indoor power cord type is H05VV-F or H05V2V2-F, the outdoor power cord and
interconnected cord type is H07RN-F.
3. Lift the indoor unit panel up, remove the electrical box cover by removing the screw.
4. Ensure the color of wires of outdoor unit and the terminal identifications. are the same to the
indoor unit respectively.
5. Wrap those cables not connected with terminals with insulation tapes, so that they will not touch
any electrical components.
6. Secure the cable with the cord clamp.
NOTE:
NOTE:
Panel
Electrical box
cover
Terminal block of indoor unit
Terminal block of outdoor unit
Cover
Screw
Manual control
Button
AUTO/COOL
1 2 S
To outdoor unit
To indoor unit
To power supply
1 2 S L1 L2
950-0182revC
November 27, 2013
Exceeding the tightening torque will damage the flare surface.
NOTE:
NOTE:
1. Use a small screwdriver
for terminals.
2. Breaker size and wiring
must be sized per the rating
plate amperage. If smaller
than required breaker is used
there is a possibility of damage
and safety issues.
3. Use breaker as specified in
product label on the unit.
***
DO NOT CROSS WIRES BETWEEN TERMINALS. ***
***DO NOT INSTALL A LIQUID LINE SIGHT GLASS OR FILTER DRIER IN THE SYSTEM. ***
..
International Refrigeration Products warrants the accompanying split air conditioner or heat pump system
to be free of defects in material and workmanship for the applications specified in the operation manual
and installation manual for a period of one (1) year on parts and five (5) years on compressor, valid from the
date of original retail purchase in the United States or Canada. Labor or shipping is not covered under this
warranty.
Warranty card must be completed and sent in to activate the warranty for the accompanying unit. Warranty
may also be activated via the website www.irproducts.biz
WARRANTY
TECHNICAL SUPPORT
If you need technical support please call (215) 750-9876 M-F 8:00 am to 4:30 pm.
International Refrigeration Products
1035 Wheeler Way, Langhorne, PA 19047
.
