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5
Pipe Connection
After connecting the refrigerant piping, seal the refrigerant pipes by using the factory supplied insulation material.
Insulation for
Refrigerant Pipe
Binder
(Accessory)
(Accessory)
Refrigerant Pipe
(Field-Supplied)
Unit
Side
Insulation for
Refrigerant Pipe
(Field-Supplied)
Insulation Material
(Factory-Supplied)
6
Checking of drawing drain hose
(1) Connect the separate drain hose to the drain hose that is attached to the indoor unit.
(2) For keeping the smooth fl owing of condensed water the drain hose should be inclined as shown in fi gure below.
Good
Bad
Refrigerating pipes
Drain hose
Drain
hose
Please ensure the smooth fl ow of condensed water of
!
the indoor unit during installation. (Carelessness may
CAUTION
result in water leakage.)
7
Checking procedure after installation
7.1
Confi rm the smooth water fl owing from the drain hose by pouring some water into the evaporator pan.
7.2
Arrange the penetrating part of the wall presentably with the bushing for refrigerating pipes and sealer which is belonging
to the pipe set as shown in Fig. 7-1.
Bushing for refrigerating pipes
Refrigerating pipes
Connecting cord
Sealer
Protection pipe
Drain hose
Fig. 7-1
7.3
Wind the inadhesive vinyl tape which is belonged to the pipe set round the refrigerating pipes and the connecting cord.
7.4
Leakage checking of refrigerant at the coupling by gas leak detector or soapsuds, as shown in Fig. 7-2.
7.5
Checking of evaporator coldness (cooling operation).
7.6
Checking of warm wind from condenser (cooling operation).
8
Installation of wired remote controller (optional)
(a) Connection to the electrical box;
Remove the cover of electric box
Connect the connector of wired remote controller to CN20
Assemble back the cover of electrical box
(b) Wiring installation for wired remote controller (2 methods);
Wired remote controller casing can be opened by pressing the
slots with minus screw driver (see below diagram)
REMARK: Diagram shown is for reference only.
For SPX-URFG please refer specifi c manual.
Remote Controller
Decide the fi xing location of remote controller so that the length of wire shall be within 5 meters.
!
Do not cut the provided wire. Excess wire should be properly wound and fi tted in a safe place.
Do not join the wire with additional wire.
CAUTION
Wiring installation illustrations
Wall recessed wiring installation (Optional)
When connecting the wires via the wall's recessed slot;
1. Fix the bottom casing to the wall with the provided screw.
2. Assemble the top casing to the fi xed bottom casing.
(Refer to the illustration below for a detailed installation)
Location of wall mounting screw
Lead wires connector
Lead wires are inserted through
and fastened via a rib-clip
Wall mounting screws
(2 pieces) (provided)
Wires
<IA2371: A >
CAUTION
!
The rubber strap used for fi xing
the insulator should not be tied
with great force. Otherwise, this
will damage heat insulation and
causes water condensation.
Pipe
Rubber strap tied with great force
Bad
Bad
Bad
Condensed
water pond
Air pocket
Ditch
Condensed
water pond
CAUTION
!
Be sure that the hose is not loosely
connected or bent.
CAUTION
!
Be sure that the wire is not in
contact with any metal in the
wall. Please use the protection
pipe around the wire passing
through the hollow part of
the wall so as to prevent the
possibility of the wire being
damaged by a mouse.
Fig. 7-2
CN20
After unscrew the
band, put the wired
remote control cord
and fi x back with
Wired remote controller
screw.
Bottom casing
5
Inside top wiring installation (Alternative)
When the wires are to be connected from the inside top portion of top casing;
1. Break off a perforated aperture located at the top portion of the bottom
casing by nipper. Smoothen the aperture by cutter.
2. Fix the bottom casing to the wall by provided screw.
3. Connect the wires to the lead wires connector.
4. Mount the wires through the provided slot on top casing.
5. Assemble the top casing to the fi xed bottom casing
(Refer to the illustration below for detail installation)
Location of wall mounting screw
Wires
Lead wires connector
Wires
Wall mounting screws (2 pieces)
9
Installation of wireless remote controller (optional)
The remote controller can be placed in its holder which is then
fi xed on a wall or beam.
To operate the remote controller at its holder, please ensure that
the unit can receive the signal transmitted from the controller
at the place where the holder is
to be fi xed. The unit will beep
when a signal is received from
the remote controller. The signal
transmission is weakened by
the fl uorescent light. Therefore,
during the installation of the
remote control holder, please
switch on the light, even during
day time, to determine the
AAA size
mounting location of the holder.
Battery
Installation of display panel (Optional)
Select an installation position on ceiling or wall where
there is no obstacle to interrupt signal reception.
Loosen screws of panel installation plate so that
bracket can be slightly moved.
Match the display panel to panel installation plate so
the fi xing claws on the panel are securely hooked.
Match brackets to the opening on ceiling or wall and
tighten screws until bracket is fi rmly secured to ceiling
material.
Install the panel cover so inside claws are securely
hooked to the panel installation plate.
Conduct the indoor unit side housing of display panel
cord to the electric box of the indoor unit and connect
it with the housing at the side of the unit.
Please disconnect wired remote
!
controller connector at CN20 if
CAUTION
to use wireless remote controller.
Connection of display panel lead wires (Optional)
Attach the connector of this panel to the
connector CN16 on the control PWB.
After unscrewing the band,
put the display panel cord
and screw it back.
10
Setting of High static pressure
HIGH
: 150pa
MEDIUM : 100pa
NORMAL :
50pa
Detail how to set static pressure shall refer to service manual page "Service setting mode".
If not set to HIGH STATIC-PRESSURE, there will be reduction of cooling and heating capacities.
(At the time of delivery, the setting is set as "NORMAL".)
How To Connect The Optional Parts
11
(RAC / WiFi Adapter, Wired Remote Control)
Wired remote controller
EXTERNAL COMMUNICATION
[For all optional parts, please refer to the catalog for part numbers]
When connecting the Dry contact / External Communication / WiFi (Optional)
To connect to Dry Contact, a separate purchase HA adaptor and Dry Contact Connecting Cord is required.
To connect to External Communication, a separate purchase RAC adaptor is required.
To connect to WiFi, a separate purchase WiFi adaptor is required.
To install the wiring, the electrical box cover must be opened, (As for Dry Contact, connect to CN6 whereas for the WiFi
Adaptor or RAC Adaptor, connect to CN7A/CN7B.
The connection cord and power cables are to be arranged and tied up as the diagram shown above.
Please refer to the respective user manuals of the WiFi adaptor and RAC adaptor for further details.
Please refer to the user manual for instruction on the removal and installation of the electrical box.
For ordering all optional parts, please refer to the catalogue for part number.
For Multi Air Conditioner, please refer to Outdoor Service Manual.
WIRED REMOTE CONTROLLER
[For all optional part, please refer catalog for part number]
To connect to the electrical box:
Remove the cover of electrical box.
Connect the connector of wired remote controller to CN20.
Assemble back the cover of electrical box.
Please refer to the respective user manual of wired remote controller for further details.
Please be careful not to damage lead wires by edge of plate when connecting the optional parts.
12
Protection of lead wire
Wrap aluminum tape around PVC tube between electric box and indoor unit (cord band).
13
Operation test
Please ensure that the air conditioner is in normal operating condition during the operation test.
Explain to your customer the proper operation procedures as described in the user's manual.
If the indoor unit does not operate, check to see that the connections are correct.
CAUTION
Trial run should be conducted on one unit at a time to check for incorrect wiring of connecting cord.
!
The remote controller
Remote
must be able to
4
Controller
slide in the remote
controller holder,
in the direction as
shown in the fi gure,
until it hooks onto
the lower end of the
Remote
5
Controller
remote controller
Holder
Plug
holder.
Screw (2 pieces)
Opening on ceiling or wall
Display panel
Claw
Bracket
Screw
Panel installation plate
Panel cover
CROSS SECTION
Bracket
Display panel
Ceiling or wall
Bracket
Panel cover
(Thickness 7~18mm)
Display panel cord
CN20
RAC Adaptor /
WiFi Adaptor
Connecting Cable
Connection Cord
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