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4
CONNECTING THE DRAIN HOSE
Indoor unit
Notes:
(1) Connect a drain hose.
• Be sure to lay the drain hose downward for smooth drainfl ow.
(2) Tape over the connecting
• Be careful not to allow the drain hose to rise, form a trap or leave its end in water, as shown below.
part.
• Coil thermal insulation around a drain hose extension, if running in the room.
• It is recommended to add an "intermediate air vent" when the drain hose is extended horizontally, or an
"anti-back-fl ow air vent" when the hose is exposed to high winds on a high-rise building, for example. For
this purpose, employ a "T tube joint" (PVC-made, commercially available) halfway in the hose.
ø18mm
Drain hose
No trap allowed.
5
CONNECTING THE REFRIGERANT PIPES
• Use pipes with thickness 0.8mm.
Flaring the pipe end
• Connect the pipes for the indoor unit fi rst
(1) Cutting with a pipe cutter
and then for the outdoor unit.
Cut at a right angle.
• Bend the pipes carefully as not to damage
(2) Deburring
them.
Allow no cuttings in the pipe.
• Do not over tighten the tubes; it may be
deformed or damaged.
(3) Putting in the fl are nut
Use a torque wrench, when possible. See
the table below for the fl are nut tightening
(4) Flaring
torque.
Flare processing dimensions(:A)
differ according to the type of fl are
Flare nut tightening torque
tool.
R410A tool: 0-0.5mm
Tube size
Torque
Conventional tool: 1.0-1.5mm
Liquid side
1/4"
16±2N·m (1.6±0.2kgf·m)
(5) Checking
Gas side
38±4N·m (3.8±0.4kgf·m)
3/8"
To be fl ared perfectly circular.
Flare nut not missing.
6
AIR REMOVAL
Use an adapter for preventing vacuum pump oil from fl owing back to the
gauge manifold hose. ON/OFF operation of the vacuum pump should be
made by the adapter switch.
( 1 ) Remove both valve shaft caps of the 2 and 3-way valves.
( 2 ) Remove the service port cap of the 3-way valve.
( 3 ) Connect the gauge manifold hose to the service port and the
vacuum pump.
Be sure that the hose end to be connected to the service port has a
valve core pusher.
( 4 ) Open the gauge manifold valve and operate the vacuum pump for
10-15 minutes.
Make sure the compound gauge reads -76cmHg.
( 5 ) Close the gauge manifold valve.
( 6 ) Turn off the vacuum pump.
( 7 ) Fully open the 2-way valve with hexagon socket screw key. (diago-
nally 4 mm)
Turn all the way up to contact.
( 8 ) Fully open the 3-way valve with hexagon socket screw key. Turn all
the way up to contact.
( 9 ) Disconnect the gauge manifold hose from the service port.
(10) Replace the service port cap and both valve shaft caps tightly.
Notes:
• Use a gauge manifold and hoses exclusive for R410A.
• After air removal, check the tube connections for gas leak using a
leakage detector or soapy water. Regarding leakage detector, use
high-sensitivity type designed specially for R410A.
Pump down
Pump down is adopted in the case of unit removal for re-installation,
abandonment, repair etc.
Pump down is to collect the refrigerant into the outdoor unit by control of
the 2 and 3-way valves and the compressor.
( 1 ) Stop the air conditioner operation.
( 2 ) Remove both valve shaft caps of the 2 and 3-way valves.
( 3 ) Run the air conditioner at cooling test run mode (Refer to 10 TEST
RUN). If pump down is performed at normal cooling operation, the
protection system may engage and stop the operation.
O R C E S T E R . i n d d 2
Not running wavy.
AIR VENT
No trap allowed.
(T TUBE JOINT)
Not left in water.
Not to rise.
To drainage pit
Connecting the pipes
(1) Tighten the flare nuts by hand
for the fi rst 3-4 turns.
(2) Use two wrenches to tighten up
the pipes.
(3) Wind coating tape around refrig-
erant pipes together with drain
hose and electrical cable for
general.
GAS
• Lay the drain hose below the
pipes.
A
Electrical
• The thermal insulation should
cable
cover both the GAS and LIQUID
pipes as shown below. As insula-
tion, use polyethylene foam 6 mm
or thicker.
Drain hose
YES
NO
NO
GAS
GAS LIQUID
LIQUID
Insulation
Insulation
Insulation
Insulation
INDOOR UNIT
GAUGE MANIFOLD
COMPOUND
3-WAY VALVE
2-WAY VALVE
GAUGE
HEXAGON
8 Fully Open
SOCKET SCREW
4 Open
KEY
7 Fully Open
5 Close
3 Connect
VALVE SHAFT CAP
9 Disconnect
1 Remove
1 Remove
10 Replace
VALVE SHAFT
10 Replace
CAP
SERVICE PORT
CAP
VACUUM PUMP
2 Remove
10 Replace
Valve shaft cap tightening torque
Pipe size
Torque
Width
Liquid side
22mm
1/4"
24±3N·m (2.4±0.3kgf·m)
Gas side
3/8"
22mm
24±3N·m (2.4±0.3kgf·m)
Service port cap tighting torque
Torque
11±1N·m (1.1±0.1kgf·m)
( 4 ) After 5~10 minutes, fully close the 2-way valve by turning the hexagon
socket screw key clockwise.
( 5 ) After 2~3 minutes, immediately close the 3-way valve fully.
( 6 ) Stop the test run operation.
( 7 ) Replace both valve shaft caps tightly.
( 8 ) Disconnect both refrigerant pipes.
Note:
• Do not perform the pump down when at heating mode. The refrigerant
will not be collected.
7
CONNECTING THE ELECTRICAL CABLE TO THE OUTDOOR UNIT
(1) Process the end of the electrical cable for the outdoor unit.
40mm
8mm
(2) Remove the control box cover.
(3) Remove the cable holder and connect the cable.
Be sure that the terminal connections are as specifi ed.
(4) Fix the electrical cable sheath with the cable holder and the screw.
(5) Double-check that the cable is securely in place.
(6) Place the control box cover back in the reverse order.
Caution:
• Use the specifi ed electrical cable. Make sure the cable is secured in place and that
the terminals are free of any excess force from the cable. Otherwise overheating or
fi re may result.
• Dress the cable so that the control box cover, the cord holder and cable holder are
not loose. Double-check that the cover is tight in position. Otherwise overheating, fi re
or electric shock may result.
• Be sure to put the cable leads deep into the terminal board and tighten up the screws.
Poor contact can cause overheating or fi re, or malfunction.
Flare body
Flare nut
8
POWER CABLING
Coating tape
Prepare a dedicated power supply circuit.
For the connections, see below.
Supply power
220-240V, single-phase
Circuit breaker
10A
Insulation
POWER SUPPLY CABLE
LIQUID
Blue
Brown
Green/yellow-striped
9
HANGING THE REMOTE CONTROL
LIQUID
GAS
(1) Fit the special screw to the
wall with the wall plug.
(2) Hang the remote control to the
screw head.
WALL PLUG 2
Lo
Hi
10
TEST RUN
VACUUM PUMP
ADAPTER
(1) Open the open panel to see the control section.
(2) Start the operation with the remote control.
(3) Press the "AUX" button on the unit for 5 seconds or
4 Operate
more. A beep sound is heard and the OPERATION
6 Turn off
lamp starts fl ashing. Now the system is in the cool-
ing test run mode.
(4) To put the system in the heating test run mode, start
the cooling operation and select the heating mode on
the remote control.
(5) Make sure the system runs well, and press the AUX
button again to stop the operation.
DETACHING THE FRONT PANEL
For servicing, for example, detach the front panel in the
following steps. Be sure to disconnect the power cord
from the wall outlet or turn off the circuit breaker.
(1) Remove the air fi lter.
(2) Unscrew the 2 screws of the front panel.
(3) Open the vertical adjustment louvre by hand.
(4) Remove the front panel.
• Slightly open the lower part of the front panel, and extract
the 5 hooks along the upper surface for disassembly.
(5) To set the panel back into position, press-fi t it at the bottom
fi rst and then press its top.
• The appliance shall be installed in
accordance with national wiring regu-
lations. Wrong connection can cause
overheating or fi re.
• Fit a disconnect switch, having a contact
separation of at least 3mm in all poles,
to the electricity power line.
POWER SUPPLY
Neutral
Live
Ground
Loading the batteries
Slide the cover in the direction of the ar-
row.
(1) Open the cover.
(2) Insert the batteries.
(3) Close the cover.
• If after battery replacement the control
SPECIAL
fails to function, take out the batteries.
SCREW 6
Wait for more than 30 seconds and put
Remote control rear
them in again.
side
11
EXPLANATION TO CUSTOMER
• Explain to the customer how to use and maintain the system,
referring to the operation manual.
• Ask the customer to carefully read the operation manual.
• When the system has been set up, hand the installation manual
to the customer.
IMPORTANT POINTS TO EXPLAIN
Whipping sound :
• The system adjusts itself, by expansion or shrinkage,
according to great temperature fl uctuations.
Running liquid sound :
• The refrigerant runs in the system, generating such sound.
(For details, refer to the accompanying operation manual.)
Air fi lter
(1)
(2)
Screw
Installation Manual Greensource air to air 2008/07 en 8 716 115 358
N 1
2
Earth wire
Terminal board
Cable holder
Screw
Electrical cable
Control box cover
Earth leakage breaker
• Provide an earth leakage breaker in
order to protect against electric shock
in case of leak.
• Use the current-activated, high-sen-
sitivity, high-speed type breaker with
a rated sensitivity current of below 30
mA and an operating time of below 0.1
second.
(4)
(3)
Vertical adjustment louvre
TINS-B166JBRZ
8 . 6 . 1 8 1 1 : 4 : 2 8 A M
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