IM RXG Quaternity
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
01_EN_3P226011-1.fm Page 1 Thursday, September 18, 2008 3:22 PM
3P226011-1 M07B242
Outdoor Unit Installation (2)
Safety Precautions (2)
DAIKIN AIR CONDITIONER
5.
WARNING
Outdoor Unit Installation (3)
6.
Purging air and checking gas leakage.
• When piping work is completed, it is necessary to purge the air and check for gas leakage.
• During pump-down, stop the compressor before removing the refrigerant piping.
Two-dimensional bar code
is a code for manufacturing.
If the compressor is still running and the stop valve is open during
pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is
open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury.
• Be sure to install a ground fault circuit interrupter breaker.
Safety Precautions (1)
Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury.
CAUTION
• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
• Do not install the air conditioner where gas leakage would be exposed to open flames.
• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.
• Tighten the flare nut according to the specified torque. A torque wrench should be used.
If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.
WARNING Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• Do not touch the heat exchanger fins.
CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences.
• Be very careful about product transportation.
Improper handling may result in injury.
Compound
Pressure
pressure gauge meter
Low-pressure
valve
Never attempt.
Vacuum pump
adapter
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur leading to serious injury or death.
• If the refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce a toxic gas if it
Vacuum pump
7-2
comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
Service port
Liquid stop valve
apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
WARNING
• Installation should be left to the authorized dealer or another trained professional.
Improper installation may cause water leakage, electrical shock, fire, or equipment damage.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.
• Be sure to use the supplied or exact specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.
Precautions for Selecting the Location
1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the unit noise.
2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance to the neighbors.
3) Avoid noise sensitive locations such as bedrooms to avoid future problems.
4) There must be sufficient clearance for carrying the unit into and out of the site.
5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.
6) The surrounding area must be free from the possibility of flammable gas leakage.
7) Install units, power cords and inter-connecting cables at least 10 feet (3m) away from television and radio
sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more
than 10 feet (3m) away depending on radio wave conditions.)
8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner.
9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.
An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.
• Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.
Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.
• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible.
Do not use an extension cord. Do not put other loads on the power supply. Use a only a separate dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or equipment damage.
• After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.
• When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)
When operating the air conditioner in a outdoor temperature
below, be sure to follow the instructions described below.
1) To prevent exposure to wind, install the outdoor unit with its
suction side facing the wall.
2) Never install the outdoor unit at a site where the suction side
may be exposed directly to wind.
3) To prevent exposure to wind, it is recommended to install a
baffle plate on the air discharge side of the outdoor unit.
4) In heavy snowfall areas, select an installation site where the
snow will not affect the unit.
• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare
four sets of 3/8 inch (M10) or 7/16 inch (M12) foundation bolts, nuts and washers each which are available
on the market.)
• It is best to screw in the foundation bolts until their length are 3/4 inch (20mm) from the foundation surface.
1.
2.
Max. allowable height
26ft (8m)
3.
Gas pipe
O.D. 3/8 inch (9.5mm)
Liquid pipe
O.D. 1/4 inch (6.4mm)
Drain work (heat pump-models).
(Cut exactly at
right angles.)
Drain-water hole
Bottom frame
(B) Drain plug
Hose (available commercially,
inner dia. 5/8 inch (16mm))
Remove burrs
Flaring
Set exactly at the position shown below.
A
Clutch-type
Die
Conventional flare tool
Flare tool for R410A
A
Check
Flare’s inner
surface must
be flaw-free.
The pipe end must
be evenly flared in
a perfect circle.
Make sure that the
flare nut is fitted.
from wall
In sites with poor drainage, use
block bases for outdoor unit.
Adjust foot height until the unit
is leveled. Otherwise, water
leakage or pooling of water may
occur.
How to attach the stop valve cover.
Insert the upper part of the
stop valve cover into the
outdoor unit to install.
Tighten the screws.
1) Do not use mineral oil on flared part.
2) Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
3) Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
4) Do never install a drier to this R410A unit in order to guarantee its lifetime.
5) The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
4.
3
4 ( bolt-h
ot s)
(Fo nter
ce
-1/
12
22-5/8
(574)
(Foot b
olt-hole
centers
)
4-1/8 (1
(From
Where there is a danger of the unit
falling, use foot bolts, or wires.
05.5)
unit’s
side)
Do not apply refrigeration
Wall facing one side
More than 3-15/16 (100)
More
than
3-15/16
(100)
47-3/16
(1200)
or less
More
than
5-7/8
(150)
More than
1-15/16 (50)
Side view
More than
5-7/8 (150)
More than
1-15/16 (50)
Top view
More than
1-15/16 (50)
More than
11-13/16 (300)
Top view
Unit: inch (mm)
In case using stranded wires is unavoidable for some reason,
make sure to install the round crimp-style terminals on the tip.
Round
crimp-style
terminal
Screw
<Ground terminal installation>
1) Use the following method when installing a single core wire.
2) Use the following method when installing the round crimp-style terminal.
Flat washer
<Method of mounting conduit>
1) Pass wires through the conduit and secure them with a lock nut.
2) By removing the 2 screws to remove the conduit mounting plate, you can work without the plate.
3) Secure the wire with a binding band to the conduit mounting plate.
2
Screw
Screw
Round crimpstyle terminal
Flat washer
Round crimpstyle terminal
Flat washer
Round
crimp-style
terminal
Good
Wrong
Arrow view
CAUTION (2)
After completing the work, reattach the conduit mounting plate to its original position.
1
Flat washer
A single core wire
Screw
Power supply
terminal block
Stranded
wire
Place the round crimp-style terminals on the wires up to the
covered part and secure in place.
Arrow view
<Work before wiring>
A protection plate is fixed for protection from the high-voltage section.
Before starting wiring work, remove the 2 screws and the protection plate.
When connecting the connection wires to the terminal
board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Protection plate
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
3
Use the specified wires
and connect them
securely.
Shape the wires so that
there is no lifting of the
stop valve cover or
other structural parts.
WARNING
Spanner
When the protection plate is removed,
do not turn ON the safety breaker.
Piping union
Do not apply refrigeration oil to the flare
nut avoid tightening with over torque.
Lock nut
Flare nut
Flare nut tightening torque
1.
Secure the wires
firmly using the
binding band, as
(C) Binding shown in the figure.
Secure firmly,
band
making sure no
outside pressure is
exerted on the
terminals.
Conduit
mounting
plate
Torque wrench
inner surface of the flare.
Flare nut
Walls facing three sides
Walls facing two sides
Valve cap
Liquid stop valve
CAUTION (1)
1) Do not use spliced wires, stranded wires, extension cords, or starburst connections, as they may cause
overheating, electrical shock, or fire. Follow all Local, and State electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding
drain pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.
3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling
harmonics in order to prevent malfunctioning of the earth leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8 inch (3mm) between the contact point gaps.
5) The earth leakage circuit breaker must operate at 30mA or lower.
6) When carrying out wiring connection, take care not to pull at the conduit.
[Tighten]
Apply refrigeration oil to the
oil to the outer surface.
• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the
installation guidelines below.
• For any of the below installation patterns, the wall height on the exhaust side should be 47-3/16 inch
(1200mm) or less.
Hexagonal
wrench
Wiring (2)
Screw
[Apply oil]
Installation Guidelines
Close
Test Run and Final Check
Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully
with the torque wrenches.
Unit: inch (mm)
Gas stop valve
How to force cooling operation mode
Using the indoor unit operation/stop button
Press the indoor unit operation/stop button for at least 5 seconds. (Operation will start.)
• Forced cooling operation will stop automatically after around 15 minutes.
To force a test run to stop, press the indoor unit operation/stop button.
Refrigerant piping.
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil
for R410A.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
ole
Liquid pipe
CAUTION
CAUTION
)
11
More than 1-15/16 (50)
*1. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe
joint may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
WARNING
Stop valve cover
How to remove the stop valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
9-7/8” (250mm)
8) Tighten valve caps and service port cap for the liquid and gas stop valves with a torque wrench at the specified
torques.
Clutch-type (Rigid-type) Wing-nut type (Imperial-type)
0-0.020 inch (0-0.5mm) 0.039-0.059 inch (1.0-1.5mm) 0.059-0.079 inch (1.5-2.0mm)
exceed the maximum length.
Allow 11-13/16 inch
(300mm) of work space
below the ceiling surface.
2) Carry out forced cooling operation.
3) After 5 to 10 minutes, close the liquid stop valve with a
hexagonal wrench.
4) After 2 to 3 minutes, close the gas stop valve and stop
forced cooling operation.
Flaring the pipe end.
* No refrigerant needs to be added if the piping does not
Allow space for piping
and electrical servicing.
Liquid pipe insulation
In order to protect the environment, be sure to pump down when relocating or disposing of the unit.
1) Remove the valve caps from liquid stop valve and gas stop valve.
WARNING
Installing outdoor unit.
1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface
facing downward so that the chips do
not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring is properly made.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Liquid pipe
thermal insulation
Pump Down Operation
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.
After the check is complete, wipe all soapy water off.
Wiring (1)
1) Use drain plug for drainage.
2) If the drain port is covered by a mounting base or floor surface, place additional
foot bases of at least 1-1/4 inch (30mm) height under the outdoor unit’s feet.
3) In cold areas, do not use a drain hose with the outdoor unit.
(Otherwise, drain water may freeze, impairing heating performance.)
Outdoor Unit Installation Drawings
Gas pipe
insulation
After closing the liquid stop valve, close the gas stop valve within 3 minutes, then stop the forced operation.
1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor
Unit Installation Drawings”.
2) If drain work is necessary, follow the procedures below.
3/4” (20mm)
32ft (10m)
Install the unit high enough off the
ground to prevent burying in snow.
Gas pipe thermal
insulation
Drain hose
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
5) Remove valve caps from liquid stop valve and gas stop valve.
Outdoor Unit Installation (1)
Precautions on Installation
Max. allowable length
Construct a large canopy.
Construct a pedestal.
Liquid side
Inter-unit wiring
Gas pipe
O.D. 3/8inch (9.5mm) O.D. 1/4inch (6.4mm) I.D. 0.472-0.590inch (12-15mm) I.D. 0.315-0.393inch (8-10mm)
Minimum bend radius
1-3/16inch (30mm) or more
Thickness 0.393inch (10mm) Min.
Thickness 0.031inch (0.8mm) (C1220T-O)
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.
(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*1.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
CAUTION
Finishing tape
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 29.9inHg (–0.1MPa).
(The vacuum pump should run for at least 10 min.)
Gas side
NOTE: Do not install unit by hanging from a ceiling or stacking units.
• Install the air conditioner on a solid base that is level and can support the weight of the unit.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or
water out.
Seal the edge of the insulation if
there is a possibility that the
condensation from the shut-off
valve might drip onto the indoor
unit through the gap between the
insulation and the pipe.
if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas could cause severe injury or death.
• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• Do not ground units to telephone wires or lightning rods because lightning strikes 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.
Rain
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.024-0.030Btu/fth˚F (0.035-0.045kcal/mh˚C))
Refrigerant gas pipe’s surface temperature reaches 230˚F (110˚C) max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
1
• After completing the installation work, check that the refrigerant gas does not leak. Refrigerant gas may produce a toxic gas
• Do not ground units to water pipes, telephone wires or lightning 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.
• Safely dispose of the packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear
Wall
Be sure to
place a cap.
Selection of copper and heat insulation materials.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
There is on the
bottom packing case.
1
(C) Binding band
There is a siphon pipe
inside, so the cylinder
need not be upsidedown to fill with liquid.
Piping bundle diagram
(B) Drain plug (Heat pump-Models)
1
(A) Installation manual
Turn the cylinder
upside-down when filling.
Refrigerant piping work.
Valve caps
Accessories
Accessories supplied
with the outdoor unit:
Stand the cylinder upright
when filling.
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions
concerning the use and cleaning of the unit according to the Operation Manual.
DANGER
Highpressure
valve
Filling other cylinders
7-1 Cautions on pipe handling.
Charging
hoses
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Be sure to establish an earth connection.
Gas stop
valve
Filling a cylinder with an
attached siphon
• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.
7.
Gauge
manifold
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.
Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants
may damage the vacuum pump or the unit.
• If using additional refrigerant, perform air purging from the refrigerant
pipes and indoor unit using a vacuum pump, then charge additional
refrigerant.
• Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at
the specified tightening torque.
If the gas leaks and builds up around the unit, it may catch fire.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
1)
2)
3)
4)
Refilling the refrigerant.
Check the type of refrigerant to be used on the machine nameplate.
Precautions when adding R410A
Fill from the liquid pipe in liquid form.
It is a mixed refrigerant, so adding it in gas form may cause the
refrigerant composition to change, preventing normal operation.
1) Before filling, check whether the cylinder has a siphon attached or not.
(It should have something like “liquid filling siphon attached” displayed on it.)
Valve cap tightening torque
Gas side
Liquid side
Gas side
Liquid side
3/8 inch (9.5mm)
1/4 inch (6.4mm)
3/8 inch (9.5mm)
1/4 inch (6.4mm)
24.1-29.4ft • lbf (32.7-39.9N • m)
10.4-12.7ft • lbf (14.2-17.2N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
15.9-20.2ft • lbf (21.6-27.4N • m)
Service port cap tightening torque
7.9-10.8ft • lbf (10.8-14.7N • m)
Conduit
• Do not turn ON the safety breaker until all work is completed.
When wire length exceeds
<Wiring procedure>
32ft (10m), use AWG14 wires.
1) Strip the insulation from the wire (3/4 inch (20mm)).
1
Indoor 2
2) Connect the connection wires between the
3
unit
indoor and outdoor units so that the terminal
numbers match.
Outdoor unit
1 23
Use AWG16 or AWG14
wire for the power supply
and interconnecting wires.
3) After completing wiring, fix the protection plate to its original position.
L1 L2
Safety
breaker
15A
Earth
Earth leakage
circuit breaker
Power supply
60Hz 208-230V
Trial operation and testing.
• Measure the supply voltage and make sure that it falls in the specified range.
• See “Test Run and Final Check” in the installation manual that came with the indoor unit for details on how to
perform the test run and what to check for.
2.
Test items.
Test items
Symptom
(diagnostic display on RC)
Outdoor unit is installed properly on a solid base.
Fall, vibration, noise
No refrigerant gas leaks.
Incomplete cooling/heating function
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Water leakage
Draining line is properly installed.
Water leakage
Contact and check with the user whether the
outdoor unit requires drainage work.
Drainage instillation from the bottom
hole of the outdoor unit.
System is properly ground to earth.
Electrical leakage
The specified wires are used for interconnecting
wire connections.
Inoperative or burn damage
Outdoor unit’s air intake or exhaust has clear path of air.
Stop valves are opened.
Incomplete cooling/heating function
Check
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