CAUTION
For Indoor Unit
INSTALLATION INSTRUCTIONS
– Inverter Split System Air Conditioner –
This air conditioner uses the new refrigerant R410A.
Contents
Page
IMPORTANT!
Please Read Before Starting .................................. 2
1. GENERAL .......................................................... 3
1-1. Tools Required for Installation (not supplied)
1-2. Accessories Supplied with Unit
1-3. Optional Copper Tubing Kit
1-4. Type of Copper Tube and Insulation Material
1-5. Additional Materials Required for Installation
2. INSTALLATION SITE SELECTION ................... 4
2-1. Indoor Unit
2-2. Embedding the Tubing and Wiring
3. HOW TO INSTALL THE INDOOR UNIT .............. 6
3-1. Remove the Rear Panel from the Unit
3-2. Make a Hole
3-3. Install the Rear Panel on the Wall
3-4. Remove the Grille to Install the Indoor Unit
3-5. Shape the Indoor Side Tubing
3-6. Wiring Instructions
3-7. Wiring Instructions for Inter-unit Connections
3-8. Mounting
3-9. Drain Hose
COOL/ DRY/HEAT Model
Model Combinations
Combine indoor and outdoor units only as listed
below.
Indoor Unit Outdoor Unit
KMHS0772 CMH1972
KMHS0972 CMH2472
KMHS1272 CMH3172
KMHS1872
KMHS2472
Power Source:
60 Hz, single-phase, 230 / 208 VAC
Combinations of indoor and outdoor units
Connect indoor and outdoor units only in the combinations listed in the catalog or installation manual.
Connecting any other model may result in
operation failure and system damage.
4. HOW TO TEST RUN THE AIR CONDITIONER .... 16
5. REMOTE CONTROL UNIT INSTALLATION
POSITION ......................................................... 17
5-1. Mounting on a Wall
6. ADDRESS SWITCH .......................................... 18
6-1. Address Setting of the Remote
Control Unit
7. CONNECTING A HOME AUTOMATION
DEVICE.............................................................. 19
8. INSTALLATION CHECK SHEET ...................... 19
SANYO FISHER COMPANY SANYO Canada Inc.
A DIVISION OF SANYO NORTH AMERICA CORPORATION 300 Applewood Crescent, Concord
21605 Plummer Street Ontario, L4K 5C7, Canada
85264189998000 © SANYO 2006
Chatsworth, CA 91311 U.S.A.
Be sure to read the yellow instruction sheet
attached to the outdoor unit for models using the
new refrigerant R410A.
NOTE
The illustrations are based on the typical appearance of
a standard model. Consequently, the shape may differ
from that of the air conditioner that you are installing.
In Canada
IMPORTANT!
Please Read Before Starting
This air conditioning system meets strict safety and operating
standards. As the installer or service person, it is an important
part of your job to install or service the system so it operates
safely and efficiently.
For safe installation and trouble-free operation, you
must:
G
Carefully read this instruction booklet before beginning.
G
Follow each installation or repair step exactly as shown.
G
Observe all local, state, and national electrical codes.
G
Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard
WARNING
CAUTION
or unsafe practice which can
result in severe personal injury
or death.
This symbol refers to a hazard
or unsafe practice which can
result in personal injury or product or property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to
follow the instructions in this document.
SPECIAL PRECAUTIONS
WARNING
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and
inadequate grounding can cause accidental injury or
death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when
lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.
When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN
SHOULD ATTEMPT TO WIRE THIS SYSTEM.
When Installing…
…In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the
unit’s weight. It may be necessary to construct a strong
wood or metal frame to provide added support.
…In a Room
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to
walls and floors.
When Connecting Refrigerant Tubing
• Do not add any refrigerant, air, or substance into the
refrigeration circuit other than the designated refrigerant
(R410A). Adding anything other than the specified refrigerant may cause the pressure to rise excessively in the
refrigeration circuit, rupturing the circuit and causing injury
or damage.
• Use all-new tubing and flare nuts to make the tubing connections. Using any previous parts (from R22-based systems) may result in damage to the equipment, and may
lead to the refrigeration circuit rupturing, causing a serious accident.
• Apply refrigerant lubricant to the matching surfaces of
the flare and union tubes before connecting them, then
tighten the nut with a torque wrench for a leak-free
connection.
• Check carefully for leaks before starting the test run.
When Servicing
• Turn the power OFF at the main power box (mains) before
opening the unit to check or repair electrical parts and
wiring.
• Keep your fingers and clothing away from any moving
parts.
• Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
Others
CAUTION
• Ventilate any enclosed areas when installing or testing
the refrigeration system. Escaped refrigerant gas, on
contact with fire or heat, can produce dangerously
toxic gas.
• Confirm upon completing installation that no refrigerant
gas is leaking. If escaped gas comes in contact with a
stove, gas water heater, electric room heater or other heat
source, it can produce dangerously toxic gas.
2
1. General
This booklet briefly outlines where and how to install the
air conditioning system. Please read over the entire set
of instructions for the indoor and outdoor units and make
sure all accessory parts listed are with the system before
beginning.
1-1. Tools Required for Installation (not supplied)
1. Standard screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Carpenter’s level
1-2. Accessories Supplied with Unit
Table 1
Parts Figure Qʼty Parts Figure Qʼty
Remote
control unit
Remote control
unit holder
AAA alkaline
battery
1
1
2
Tapping screw
Rawl plug
Drain hose
adapter
Truss-head
Phillips
5
/325/8" (4 16 mm)
6. Sabre saw or key hole saw
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
Parts Figure Qʼty
8
1
Clamp
Air clean filter
10
1
2
Packed in the indoor unit.
1-3. Optional Copper Tubing Kit
Copper tubing for connecting the outdoor unit to the
indoor unit is available in kits which contain the narrow
and wide tubing, fittings and insulation. Consult your
nearest sales outlet or A/C workshop.
1-4. Type of Copper Tube and Insulation Material
2. Foamed polyethylene insulation for the specified
copper tubes as required to precise length of tubing.
Wall thickness of the insulation should be not less
than 5/16" (8 mm).
3. Use insulated copper wire for field wiring. Wire size
varies with the total length of wiring. Refer to 3-6.
Wiring Instructions for details.
If you wish to purchase these materials separately from
a local source, you will need:
1. Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2.
Cut each tube to the appropriate lengths 1' to 1'4"
(30 cm to 40 cm) to dampen vibration between units.
Table 2
Model
KMHS0772 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMHS0972 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMHS1272 1/4" (6.35 mm) 0.0314" (0.8 mm) 3/8" (9.52 mm) 0.0314" (0.8 mm)
KMHS1872 1/4" (6.35 mm) 0.0314" (0.8 mm) 1/2" (12.70 mm) 0.0314" (0.8 mm)
KMHS2472 1/4" (6.35 mm) 0.0314" (0.8 mm) 5/8" (15.88 mm) 0.0393" (1.0 mm)
Outer Dia. Thickness Outer Dia. Thickness
Narrow Tube Wide Tube
CAUTION
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions or
limitations.
3
1-5. Additional Materials Required for Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See local codes)
3. Putty
4. Refrigeration lubricant
5. Clamps or saddles to secure refrigerant tubing
2. Installation Site Selection
2-1. Indoor Unit
Indoor unit
WARNING
To prevent abnormal heat generation
and the possibility of fire, do not
place obstacles, enclosures and
grilles in front of or surrounding the
air conditioner in a way that may
block air flow.
AVOID:
G direct sunlight.
G nearby heat sources that may affect performance of the
unit.
G areas where leakage of flammable gas may be expected.
G placing or allowing any obstructions near the A/C inlet or
outlet.
G installing in rooms that contain instant-on (rapid-start)
fluorescent lamps. (These may prevent the A/C from
receiving signals.)
G places where large amounts of oil mist exist.
G installing in locations where there are devices that
generate high-frequency emissions.
DO:
G select an appropriate position from which every corner of
the room can be uniformly cooled. (High on a wall is best.)
2" (5 cm)
min.
INDOOR
UNIT (1)
Elevation
difference (H1)
H4
INDOOR
UNIT (4)
Outside drainage
Fig. 1
6" (15 cm)
min.
Front View
Fig. 2
Tubing length (L1)
OUTDOOR
UNIT
L4
Drain hose
INDOOR
UNIT (2)
L2
L3
INDOOR
UNIT (3)
2" (5 cm)
min.
H2
H3
G select a location that will hold the weight of the unit.
G select a location where tubing and drain hose have the
shortest run to the outside. (Fig. 1)
G allow room for operation and maintenance as well as
unrestricted air flow around the unit. (Fig. 2)
G install the unit within the maximum elevation difference
(H1, H2, H3, H4) above or below the outdoor unit and
within a total tubing length (L1+L2+L3, L1+L2+L3+L4)
from the outdoor unit as detailed in Table 3 and Fig. 3a.
CAUTION
For stable operation of the
air conditioner, do not
install wall-mounted type
indoor units less than 5'
(1.5 m) from floor level.
4
Fig. 3a
Fig. 3b
Indoor unit
Minimum height
from floor level
5' (1.5 m)
Floor level
Wall
G Install the indoor unit more than 3.3' (1 m) away from any
antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom.
Electrical noise from any of these sources may affect
operation.
G install in a sturdy manner to avoid increased operating
noise.
Table 3
Max. Max. Allowable Total Limit of Limit of Elevation Required Amount
Allowable Tubing Length Total Tubing Length Difference of Additional
Model Tubing Length at shipment (L1+L2+L3) or (H1, H2, H3, H4) Refrigerant
per unit (L1+L2+L3) or (L1+L2+L3+L4) (ft.) (oz./ft.)*
(ft.) (L1+L2+L3+L4) (ft.)
(ft.)
CMH1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 —
CMH2472 82 150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4) 50 0.22
CMH3172 100 150 (L1+L2+L3+L4) 230 (L1+L2+L3+L4) 50 0.22
* If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft.
No additional charge of compressor oil is necessary.
2-2. Embedding the Tubing and Wiring
G Before beginning embedding installation work, consult
fully with agencies or offices related to the building’s
foundation, construction, electricity, and water.
G Wait to make connections to the embedded portion.
Each connection step is described later in this
manual.
G Securely cover the end of the embedded tubing to
prevent intrusion of dirt or moisture.
G If an embedded tube is to be left for a long time, fill
the tube with nitrogen and seal both ends securely.
If a tube is left open for an extended time, moisture in
the air inside the tubing may condense into water
droplets, and lead to water contamination of the refrigerant circuit.
G In order to prevent insulation breakdown and ground
faults, do not allow wiring ends to come in contact with
rainwater, or be subjected to condensation or dew.
G Apply sufficient thermal insulation to the refrigerant
tubing and drain pipes.
5
3. How to Install the Indoor Unit
3-1. Remove the Rear Panel from the Unit
(1) Remove and discard the set screw on the rear
panel. (Fig. 6)
(2) Press the 2 LL marks on the frame cover and disen-
gage the stationary tabs from the frame. (Fig. 7)
(3) Remove the rear panel.
Set screw only for transportation
NOTE
Tubing can be extended in 5 directions as shown in Fig.
8. Select the direction you need providing the shortest
run to the outside unit.
G When left tubing is to be done, switch the drain hose
and drain cap. (For details, refer to “Switching drain
hose and drain cap” on page 14.)
3-2. Make a Hole
(1) Place the rear panel from the indoor unit on the wall
at the location selected. Make sure the panel is horizontal, using a carpenter’s level or tape measure to
measure down from the ceiling. Wait until after cutting the hole before attaching the rear panel to the
wall.
(2) Determine which side of the unit you should make
the hole for tubing and wiring. (Fig. 9a or 9b)
NOTE
In the case of left-rear tubing, use the measurement
points from the edge of the rear panel for precise placement of the hose outlet. (Fig. 9a or 9b)
(3) Before making the hole, check carefully that no
studs or pipes are directly run behind the spot to be
cut.
Left
tubing
Left-rear
tubing
2-3/4" (70 mm)
Fig. 6
Rear panel
marks
Fig. 7
Right-rear
tubing
(recommended)
Right tubing
Downward tubing
Fig. 8
(KMHS0772, KMHS0972, KMHS1272)
CAUTION
Also avoid areas where electrical wiring or conduits are
located.
The above precautions are also applicable if tubing
goes through the wall in any other location.
6
2-3/8" (60 mm)
Fig. 9a
(KMHS1872, KMHS2472)
Fig. 9b
Indoor
side
Outdoor
side
g
(4) Using a sabre saw, key hole saw or hole-cutting drill
attachment, cut a hole in the wall. See Table 4 and
Fig. 10.
Table 4
Hole Dia.
KMHS0772/0972/1272 KMHS1872/2472
2-9/16" (65 mm) 3-5/32" (80 mm)
NOTE
Hole should be made at a slight downward slant to the
outdoor side.
(5) Measure the thickness of the wall from the inside
edge to the outside edge and cut PVC pipe at a
slight angle 1/4" (6 mm) shorter than the thickness of
the wall. (Fig. 11)
(6) Place the plastic cover over the end of the pipe (for
indoor side only) and insert the pipe in the wall.
(Fig. 12)
3-3. Install the Rear Panel on the Wall
Be sure to confirm that the wall is strong enough to suspend the unit.
See either Item a) or b) below depending on the wall type.
a) If Wooden Wall
(1) Attach the rear panel to the wall with the 8 screws
provided. (Fig. 13a or 13b)
If you are not able to line up the holes in the rear
panel with the beam locations marked on the wall,
use rawl plugs or toggle bolts to go through the
holes on the panel or drill 3/16" (5 mm) dia. holes in
the panel over the stud locations and then mount the
rear panel.
Fig. 10
PVC pipe (Locally purchased)
Cut at sli
Fig. 11
INSIDE OUTSIDE
Wall
Plastic cover
(Locally purchased)
Fig. 12
(KMHS0772, KMHS0972, KMHS1272)
ht angle
PVC pipe
Slight
angle
(2) Double check with a carpenter’s level or tape mea-
sure that the panel is level.This is important to install
the unit properly. (Fig. 14)
(3) Make sure the panel is flush against the wall. Any
space between the wall and unit will cause noise
and vibration.
b) If Block, Brick, Concrete or Similar Type Wall
Make 3/16" (4.8 mm) dia. holes in the wall. Insert rawl
plugs for appropriate mounting screws. (Fig. 15)
3/16"
(4.8 mm) dia. hole
Rawl plug
Fig. 15
Fig. 13a
(KMHS1872, KMHS2472)
Fig. 13b
Fig. 14
7
3-4. Remove the Grille to Install the Indoor Unit
3-4-1. Indoor unit types
(KMHS0772, KMHS0972, KMHS1272)
Basically, these models can be installed and wired without
removing the grille. If access to any internal part is needed,
follow the steps as given below.
Air intake grille
Grille
CAUTION
Be sure to wear work gloves
during installation to avoid being
cut by the sharp aluminum fins
of the heat exchanger.
How to remove the grille
(1) Grasp both ends of the air intake grille, and remove it by
opening towards the front and pulling towards you. (Fig.
16a)
(2) Remove the 2 screws. (Fig. 16b)
(3) Remove the screw on the right side cover plate and
open the cover. (Fig. 17a)
(4) Take out the thermistor from the grille. (Fig. 17b)
(5) Pull the lower part of the grille toward you to remove.
(Fig. 18a)
(6) Use a standard screwdriver to push on the tabs to
remove the grille.
How to replace the grille
(1) Reinstall the grille into the lower part while aligning
its tabs on the upper part. (Fig. 18b) Insert the tabs
in the slots and push the lower part of the grille back
into position.
Screw cover
Thermistor
Fig. 17a
Ta b
*
Fig. 16a
Fig. 16b
Cover
Thermistor
Fig. 17b
*
Grille
Frame
Ta b
(2) Make sure that the grille and frame are firmly fitted
together by engaging the tabs.
(3) Attach the thermistor on the grille. (Fig. 17a)
(4) Close the cover and replace the screw. (Fig. 17a)
(5) Affix the grille with the 2 previously removed screws.
(Fig. 16b)
(6) Install the air intake grille.
(a) Allow the edge of the air intake grille to slide into
the top of the indoor unit, and then insert it all
the way inside. (Fig. 19a)
(b) Press the bottom right and left corners of the air
intake grille to attach it to the indoor unit. (Fig. 19b)
NOTE
Attach so that the round pins at the top right and left corners
of the air intake grille are inserted into the grooves at the top
right and left of the
indoor unit.
Fig. 18a
*
*
Fig. 18b
Groove
Pin
Fig. 19b
8
Fig. 19a
3-4-2. Indoor unit types
(KMHS1872, KMHS2472)
Basically, these models can be installed and wired without removing the grille. If access to any internal part is
needed, follow the steps as given below.
How to remove the grille
(1) Grasp both ends of the air intake grille, and remove
it by opening towards the front and pulling towards
you. (Fig. 16a-1)
(2) Remove the 3 screws. (Fig. 16b-1)
(3) Remove the screw on the right side cover plate and
open the cover. (Fig. 17a-1)
(4) Take out the thermistor from the grille. (Fig. 17b-1)
(5) Press the 3 tabs at the top of the grille and the 3
tabs on the front face to separate the grille from the
frame. (Fig. 18a-1)
(6) Pull the grill toward you to remove it.
How to replace the grille
Thermistor
Air intake grille
Fig. 16a-1
Fig. 16b-1
Cover
Grille
Thermistor
(1) When installing the grille, place the bottom of the
grille into the frame first. (Fig. 18b-1)
Then insert the tabs on the top of the grille and on
the front face into the frame.
(2) Make sure that the grille and frame are firmly fitted
together by engaging the tabs.
(3) Attach the thermistor on the grille. (Fig. 17a-1)
(4) Close the cover and replace the screw. (Fig. 17a-1)
(5) Affix the grille with the 3 previously removed screws.
(Fig. 16b-1)
(6) Install the air intake grille.
(a) Allow the edge of the air intake grille to slide into
the top of the indoor unit, and then insert it all the
way inside. (Fig. 19a-1)
(b) Press the bottom right and left corners and center
of the air intake grille to attach it to the indoor
unit. (Fig. 19b-1)
NOTE
Ta b
Fig. 17a-1
Fig. 17b-1
Ta b
Fig. 18a-1
Fig. 18b-1
Groove
Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves
at the top right and left of the indoor unit.
Fig. 19b-1
Pin
Fig. 19a-1
9
3-5. Shape the Indoor Side Tubing
(1) Arrangement of tubing by directions
a) Right or left tubing
Cut out the corner of the right/left frame with a
hacksaw or the like. (Figs. 20 and 21)
b) Right-rear or left-rear tubing
In this case, the corner of the frame need not be
cut.
(2) To mount the indoor unit on the rear panel:
Hang the 2 mounting slots of the unit on the
upper tabs of the rear panel. (Fig. 22)
3-6. Wiring Instructions
General precautions on wiring
(1) Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring
closely following the wiring diagram.
(2) Provide a power outlet to be used exclusively for
each unit, with a power supply disconnect and circuit breaker for overcurrent protection provided in
the exclusive line.
Frame
Left tubing
outlet
Fig. 20
Frame
Right tubing
outlet
Fig. 21
(3) To prevent possible hazard due to insulation failure,
the unit must be grounded.
(4) Each wiring connection must be done tightly and in
accordance with the wiring system diagram. Wrong
wiring may cause the unit to misoperate or become
damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be
very dangerous. The manufacturer will accept no
responsibility for any damage or misoperation that
occurs as a result of such unauthorized changes.
Fig. 22
10
3-7. Wiring Instructions for Inter-unit Connections
(1) Insert the inter-unit wiring (according to local codes)
into the through-the-wall PVC pipe. Run the wiring
toward the indoor side allowing approx. 10" (25 cm)
to extend from the wall face. (Fig. 24)
Rear
panel
Wall
Plastic
cover
(2) Grasp both ends of the air intake grille, and remove
it by opening towards the front and pulling towards
you.
(3) Remove the screw on the right side cover plate and
open the cover. (Fig. 25)
(4) Route the inter-unit wiring from the back of the
indoor unit and pull it toward the front for connection. (Figs. 26a and 26b)
(5) Connect the inter-unit wiring to the corresponding
terminals on the terminal plate (Figs. 26a and 26b)
while referring to the wiring diagram.
(6) Be sure to secure the wiring with the provided
clamp.
NOTE
When closing the air intake grille, press the bottom right
and left corners and center. (Fig. 27)
Please refer to “How to replace the grille” on page 8 or 9
for installing the air intake grille.
Wiring
10"
(25 cm)
Fig. 24
Cover
Fig. 25
Te r mi nal
plate
Fig. 27
Fig. 26a
Inter-unit
wiring
Earth
plate
Lock nut
Top of conduit
connector
Fig. 26b
11
e
WARNING
Loose wiring may cause the
terminal to overheat or result
in unit malfunction. A fire
hazard may also exist.Therefore, be sure all wiring is
tightly connected.
When connecting each power wire to the corresponding
terminal, follow the instructions “How to connect wiring
to the terminal” and fasten the wire securely tight with
the fixing screw of the terminal plate.
How to connect wiring to the terminal
a) For Indoor Unit
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the wire about 9/32" (7 mm).
See the label (Fig. 28) near the terminal plate.
(2) Using a screwdriver, loosen the terminal screw on
the terminal plate.
(3) Insert the wire and tighten the terminal screw com-
pletely using a screwdriver.
b) For Outdoor Unit
I For solid core wiring (or F-cable)
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the solid wire about 15/16" (25
mm). (Fig. 29)
(2) Using a screwdriver, remove the terminal screw(s)
on the terminal plate.
9/32"
STRIP
SIZE
(7 mm)
Fig. 28
Solid wire
Strip 15/16" (25 mm)
Insulation
Fig. 29
Stranded wire
Strip 3/8" (10 mm)
(ACTUAL
SIZE)
Loop
Ring
connector
(3) Using the pliers, bend the solid wire to form a loop
suitable for the terminal screw.
(4) Shape the loop wire properly, place it on the termi-
nal plate and fix it securely with the removed terminal screw using a screwdriver.
I For stranded wiring
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the stranded wiring about 3/8"
(10 mm) and tightly twist the wire ends. (Figs. 30
and 31)
(2) Using a screwdriver, remove the terminal screw(s)
on the terminal plate.
(3) Using a ring connector fastener or pliers, securely
clamp each stripped wire end with a ring connector.
(Fig. 30)
(4) Place the ring connector wire, and replace and
tighten the removed terminal screw using a screwdriver. (Fig. 32)
Wire
Special
washer
Fig. 30
Twist wire ends
Fig. 31
Screw
Ring connector
Terminal plat
Fig. 32
Screw and
special washer
Ring
connector
Wire
12
3-8. Mounting
(1) To install the indoor unit, mount the indoor unit onto
the 2 tabs on the upper part of the rear plate.
(2) Hold down the air discharge outlet and press the
lower part of the indoor unit until it clicks to securely
fasten to the 2 tabs on the lower part of the rear
plate. (Fig. 33)
NOTE
For tubing, choose either the right or left tubing direction
and follow the steps below. This work can be made easier by placing padding material (such as styrofoam) at the
rear right side of the indoor unit. (Fig. 34)
I Right-side tubing
(1) Shape the refrigerant tubing so that it can easily go
into the wall hole. (Fig. 35)
Push
Fig. 33
(2) Push the wiring, refrigerant tubing, and drain hose
through the hole in the wall. Adjust the indoor unit so
it is securely seated on the rear panel. (Fig. 36)
(3) Carefully bend the tubing (if necessary) to run along
the wall in the direction of the outdoor unit and then
tape as far as the fittings. (See Caution on page 15
in the outdoor unit installation manual.) The drain
hose should come straight down the wall to a point
where water runoff won’t stain the wall.
(4) Connect the refrigerant tubing to the outdoor unit.
(After performing a leak test on the connecting part,
insulate it with the tubing insulation. (Fig. 37a))
Also, refer to Section 3-6. Tubing connections in the
outdoor unit installation manual.
(5) Assemble the refrigerant tubing, drain hose, and
conduit (including inter-unit wiring) as shown in
Fig. 37b.
Refrigerant tubing
Padding material
Fig. 34
Rear panel
Cover
Refrigerant
tubing
Inter-unit
wiring
Drain hose
Fig. 35
Fig. 37a
Insulation
Conduit
Inter-unit wiring
Fig. 37b
Drain hose
13
Fig. 36
I Left-side tubing
(1) Lead the tubing and drain hose through the wall,
allowing sufficient length for connection. Then bend
the tubing using a tube bender to make the attachment. (Fig. 38)
(2) Switch the drain hose and drain cap.
Hole in wall
Bent part
Rear panel
Wide tube
Narrow tube
Switching drain hose and drain cap
(a) Locate the drain hose and the drain cap. (Fig.
39)
(b) Remove the screws fastening the drain hose on
the right side, and pull out the drain hose to
remove it. (Fig. 39)
(c) Apply moderate force to pull off the drain cap
on the left side. (If you cannot pull it off by hand,
use a long-nose pliers.)
(d) Reattach the drain hose to the left side and the
drain cap to the right side. (Fig. 40a)
Drain hose
Slide the drain hose fully onto the drain pan outlet
until the drain hose edge is pushed into the insulation. Check that the screw holes in the drain bracket
and the drain pan outlet are aligned and securely in
contact, then fasten them with the screw. (After
attaching the drain hose, check that it is attached
securely.) (Fig. 40c)
Fig. 38
Drain cap
Drain hose
Fig. 39
Drain hose
Clamp
Drain cap
Drain cap
Use a Phillips screwdriver to push the drain cap in
firmly. (If it is difficult to push in, wet the cap with
water first.)
(3) Install the indoor unit on the rear panel.
(4) Connect the tubing and wiring led inside from out-
doors.
(5) After completing a leak test, bundle the tubing
together with armoring tape and store it inside the
tubing storage area at the back of the indoor unit
and hold it with clamps. (Figs. 40a and 41)
Insulation
Drain bracket
Drain hose
Fig. 40c
Fig. 40a
Screw hole
Drain bracket
Conduit
Drain pan outlet
Drain hose
Screw
Fig. 40b
Refrigerant tubing
Inter-unit wiring
14
Fig. 41
To unmount indoor unit
WARNING
Risk of Electric Shock
Press the 2 LL marks on the lower part of the indoor unit
and unlatch the tabs. Then lift the indoor unit and
unmount. (Fig. 42)
3-9. Drain Hose
a) The drain hose should be slanted downward to the
outdoors. (Fig. 43)
b) Never form a trap in the course of the hose.
c) If the drain hose will run in the room, insulate the
hose with insulation* so that chilled condensation
will not damage furniture or floors. (Fig. 44)
* Foamed polyethylene or its equivalent is recom-
mended.
Do not supply power to the
unit or operate it until all
tubing and wiring to the outside unit are completed.
Indoor
unit
Push
Fig. 42
Slant
Drain
hose
Insulation material
(Locally purchased)
must be used.
Fig. 43
Condensation
Fig. 44
15
4. How to Test Run the Air Conditioner
IMPORTANT
After turning on power to the air conditioner, use the remote
controller and follow the steps below to conduct the test run.
(1) Set the remote controller in Test Run mode.
(Fig. 59a)
a) Press and hold the ION button.
b) Then press and hold the 1HR TIMER button.
c) At the same time, press the ACL (reset) button once.
Use a pointed object such as the tip of a pen to press
the ACL button.
• After a few seconds, “ ” appears and “oP-1” blinks in
the remote controller display area.
(Fig. 59b)
d) Release the 1HR TIMER button.
e) Release the ION button.
(2) Start Cooling mode test run by pressing the ON/OFF
operation button of the remote controller. (Fig. 59a)
• This starts the fan producing uncooled forced air with
the 4 indicator lamps (OPERATION lamp, TIMER
lamp, QUIET lamp, and ION lamp) on the main unit
blinking. (Fig. 59c)
• After 3 minutes, the system shifts into cooling operation, and cool air will start to be felt. Cool mode test
run is unaffected by the room temperature.
(3) Press the ON/OFF operation button of the remote con-
troller again to stop the test run. (Fig. 59a)
(4) Finally press the ACL (reset) button of the remote con-
troller to release it from Test Run mode to return to normal mode. (Fig. 59a)
• “ ” and “oP-1” will disappear from the remote controller display area.
ION
button
A
Fig. 59a
ON/OFF
operation
button
1HR.
TIMER
button
ACL
(Reset)
button
After the test run is completed, be sure to press the ACL
(reset) button to return to normal mode. The air conditioner
will not operate correctly if this is not done.
Fig. 59b
OPERATION lamp
TIMER lamp
QUIET lamp
ION lamp
Fig. 59c
16
5. Remote Control Unit Installation Position
The remote control unit can be operated from either a
non-fixed position or a wall-mounted position.
To ensure that the air conditioner operates correctly, do
not install the remote control unit in the following places:
G In direct sunlight
G Behind a curtain or other place where it is covered
G More than 26' (8 m) away from the air conditioner
G In the path of the air conditioner’s airstream
G Where it may become extremely hot or cold
G Where it may be subject to electrical or magnetic
interference
G Where there is an obstacle between the remote con-
trol unit and the air conditioner (since a check signal
is sent from the remote control unit every 5 minutes)
5-1. Mounting on a Wall
Before mounting the remote control unit, press the
ON/OFF operation button at the mounting location to
make sure that the air conditioner operates from that
location. The indoor unit should make a beeping sound
to indicate that it has received the signal.
Remote control unit mount
Mounting screws
5/32 × 5/8" (4 × 16 mm)
(Included)
Rear side
Press
Set in
place
Hole
To prevent loss of the remote control
unit, you can connect the remote
control unit to the mount by passing
a string through the remote control
unit and attachment hole.
To take out the remote control unit, pull it forward.
Fig. 61
17
6. Address Switch
6-1. Address Setting of the Remote Control Unit
The address can be set in order to prevent interference
between remote controllers when two Sanyo indoor units
are installed near each other.The address is normally
set to “A.” To set a different address, it is necessary to
change the address on the second remote controller.
Ta b
NOTE
Once changed, you cannot restore the original address
setting of the air conditioner.
(1) Switch on the power source.
(2) Break the address-setting tab marked “A” on the
second remote controller to change the address
(Fig. 62).When the tab is removed, the address is
automatically set to B (Fig. 63).
(3) Press and hold the remote controller ION button and
1 HR TIMER button. At the same time, press the
ACL(reset) button. Use a thin object such as the tip
of a pen to press the ACL button. When this has
been done, “oP-1” (test run) appears, blinking, in the
remote controller clock display area.
(4) Each time the 1 HR TIMER button is pressed, the
display changes as shown below. Press this button
2 times to change the display to “oP-7” (address
setting). (Fig. 64)
Te st run mode
Fig. 62
ACL button
Fig. 63
Selfdiagnostic mode
Adress setting mode
(5) “oP-7” has now been selected for address setting.
(6) Press the ON/OFF operation button on the remote
controller. (Fig. 64) Check that the “beep”signalreceived sound is heard from the second indoor unit
(approximately 5 times). The sound you hear is the
signal that the remote controller address has been
changed.
(7) Finally press the remote controller ACL (reset) but-
ton to cancel the blinking “oP-7” display.
(Fig. 64)
Changing of the second remote controller address is
now completed.
ION
button
A
Fig. 64
ON/OFF
operation
button
1HR.
TIMER
button
ACL
(Reset)
button
18
7. Connecting a Home Automation device
The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will
be used, connect it to this terminal.
8. Installation Check Sheet
The strength of the installation location is sufficient to support the A/C weight.
The indoor and outdoor units are installed level and vertically.
The power and voltage are as specified.
Inter-unit cables are securely inserted into the
terminal block.
Inter-unit cables are securely fixed.
The power cord and inter-unit cables are not connected anywhere along their
paths.
The ground wire is securely connected.
Thermal insulation has been applied to the tubing connections.
Drain connections are secure and water drains properly.
Putty has been used to close the hole in the wall.
Remote controller signals are being positively received.
19
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