Sanyo PW-UMR184EXH56, SPW-UMR94EXH56, SPW-UMR74EXH56, SPW-UMR224EXH56, SPW-UMR124EXH56 User Manual

– ECO-i System Air Conditioner –

INSTALLATION AND OPERATION MANUAL

■ R410A Models

Indoor Units

Outdoor Units

SPW-UMR74EXH56
SPW-UMR94EXH56
SPW-UMR124EXH56
SPW-UMR164EXH56
SPW-UMR184EXH56
SPW-UMR224EXH56

* Refrigerant R410A is used in the outdoor units.

C

DC Inverter Main Unit SPW-CR604GDXH8, SPW-CR704GDXH8, SPW-CR904GDXH8, SPW-CR1154GDXH8

Constant Speed (Sub) Unit SPW-CR704GDCH8, SPW-CR904GDCH8, SPW-CR1154GDCH8

Optional Controllers

Remote Controller RCS-SH80AG

RC Wireless Remote Controller RCS-BH80AG.WL

Simplified Remote Controller RCS-KR1AG

for Refrigerant R410A

SANYO Airconditioners Europe S.r.l.

Via Bisceglie, No. 76

20152 Milano, Italy

37.4196.054.0 ©SANYO 2005

2

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:

●

Carefully read this instruction booklet before beginning.

●

Follow each installation or repair step exactly as shown.

●

Observe all local, state, and national electrical codes.

●

This product is intended for professional use.
Permission from the power supplier is required when
installing an outdoor unit that is connected to a 16 A
distribution network.

●

Pay close attention to all warning and caution notices
given in this manual.

This symbol refers to a hazard 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

When Wiring

ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.

• 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 Installing…

…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.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.

…In an area with High Winds

Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.

…In a Snowy Area (for Heat Pump-type Systems)

Install the outdoor unit on a raised platform that is higher
than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

• Ventilate the room well, in the event that is refrigerant
gas leaks during the installation. Be careful not to allow
contact of the refrigerant gas with a flame as this will
cause the generation of poisonous gas.

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• 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.

Depending on the system type, liquid and gas lines may
be either narrow or wide. Therefore, to avoid confusion
the refrigerant tubing for your particular model is speci­fied as either “narrow” or “wide” than as “liquid” or “gas.”

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.

• 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 after installation that no refrigerant gas is leak­ing. If the gas comes in contact with a burning stove, gas
water heater, electric room heater or other heat source, it
can cause the generation of poisonous gas.

NOTE

WARNING

CAUTION

WARNING

CAUTION

3

2. The standards for minimum room volume are as
follows.

(1) No partition (shaded portion)

(2) When there is an effective opening with the adja-

cent room for ventilation of leaking refrigerant gas
(opening without a door, or an opening 0.15% or
larger than the respective floor spaces at the top
or bottom of the door).

(3) If an indoor unit is installed in each partitioned

room and the refrigerant tubing is interconnected,
the smallest room of course becomes the object.
But when mechanical ventilation is installed inter­locked with a gas leakage detector in the smallest
room where the density limit is exceeded, the vol­ume of the next smallest room becomes the object.

3. The minimum indoor floor space compared with the
amount of refrigerant is roughly as follows: (When
the ceiling is 2.7 m high)

Check of Density Limit

The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its density will not
exceed a set limit.

The refrigerant (R410A), which is used in the air condi­tioner, is safe, without the toxicity or combustibility of
ammonia, and is not restricted by laws imposed to pro­tect the ozone layer. However, since it contains more
than air, it poses the risk of suffocation if its density
should rise excessively. Suffocation from leakage of
refrigerant is almost non-existent. With the recent
increase in the number of high density buildings, how­ever, the installation of multi air conditioner systems is
on the increase because of the need for effective use
of floor space, individual control, energy conservation
by curtailing heat and carrying power, etc.
Most importantly, the multi air conditioner system is
able to replenish a large amount of refrigerant com­pared to conventional individual air conditioners. If a
single unit of the multi air conditioner system is to be
installed in a small room, select a suitable model and
installation procedure so that if the refrigerant acci­dentally leaks out, its density does not reach the limit
(and in the event of an emergency, measures can be
made before injury can occur).
In a room where the density may exceed the limit,
create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device. The density is as given below.

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m3)

≤ Density limit (kg/m

3

)

The density limit of refrigerant which is used in multi air con­ditioners is 0.3 kg/m

3

(ISO 5149).

1. If there are 2 or more refrigerating systems in a sin­gle refrigerating device, the amount of refrigerant
should be as charged in each independent device.

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in rooms
A, B and C is 10 kg.
The possible amount of leaked refrigerant gas in rooms
D, E and F is 15 kg.

Outdoor unit

Refrigerant tubing

Indoor unit

Refrigerant tubing

NOTE

e.g., charged
amount (10 kg)

Indoor unit

Room A Room B Room C Room D Room E Room F

Outdoor unit

e.g., charged
amount (15 kg)

Outdoor unit

Very
small
room

Small
room

Mechanical ventilation device – Gas leak detector

Medium
room

Large room

Indoor unit

40

Range below the

2

35

m

density limit
of 0.3 kg/m

30

(countermeasures
not needed)

25

20

15

10

5

Min. indoor floor space

0

3

10 20 30

Total amount of refrigerant

Range above
the density limit
of 0.3 kg/m
(countermeasures
needed)

3

kg

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 unit and make sure all accessory parts listed are with the system before beginning.

1-2. Type of Copper Tube and Insulation Material

If you wish to purchase these materials separately

from a local source, you will need:

1. Deoxidized annealed copper tube for refrigerant

tubing.

2. Foamed polyethylene insulation for copper tubes as

required to precise length of tubing. Wall thickness

of the insulation should be not less than 8 mm.

3. Use insulated copper wire for field wiring. Wire

size varies with the total length of wiring. Refer to

4. Electrical Wiring for details.

1-3. Additional Materials Required for Installation

1. Refrigeration (armored) tape

2. Insulated staples or clamps for connecting wire
(See your local codes.)

3. Putty

4. Refrigeration tubing lubricant

5. Clamps or saddles to secure refrigerant tubing

6. Scale for weighing

Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions
or limitations.

4

IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Please Read Before Starting

Check of Density Limit

1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-1. Tools Required for Installation (not supplied)
1-2. Type of Copper Tube and Insulation Material
1-3. Additional Materials Required for Installation

2. HOW TO INSTALL THE UNIT . . . . . . . . . . . . . .5

2-1. Duct for fresh air

3. TEST OF THE SYSTEM AND CONTROL OF THE

AIR VOLUME TO THE OUTLET GRILLES . . . .7

CONTENTS

Page

Page

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

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)

4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . .8

4-1. General Precautions on Wiring
4-2. Recommended Wire Length and Wire Diame-

ter for Power Supply System

4-3. Wiring System Diagrams

5. HOW TO PROCESS TUBING . . . . . . . . . . . . . .12

5-1. Connecting the Refrigerant Tubing
5-2. Connecting Tubing between Indoor and Out-

door Units
5-3. Insulating the Refrigerant Tubing
5-4. Taping the Tubes
5-5. Finishing the Installation

6 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

CAUTION

5

2. HOW TO INSTALL THE UNIT

Fig. 2-1

Minimum operation and maintenance area. (fig. 2-1)

Fig. 2-2

Fig. 2-4

Find the space for the installation of the return air grille and
mark the opening to do. Cut the falseceiling. (fig. 2-2)

Use rawl plug suitable to the ceiling consistence and four
M10 threaded bars of suitable length (not supplied). (fig. 2-

3)

Mark on the ceiling the holes for the hanging rods, verify the
distance of the centres. The value included in the brackets
is referred to the model X18. (fig. 2-4)
Drill a 80 mm diameter hole, for the passage of refrigeration

pipework, condensate pipework and electrical cable. Insert
a PVC pipe in the wall. (fig. 2-5)

Secure the unit in position with locknuts and washers, level
the unit, keeping the right distance from the falseceiling for
the installation of return air grille. (fig. 2-6)

Foresee a removable panel of the falseceiling for servicing.
(fig. 2-7)

The unit is supplied with PVC hose from the condensate
pump. Maximum pump lift is 250 mm over the unit. Convoy
the condensate with a positive slope (min. 1:100) to the out­side. The highest point in the condensate pipework should
be as close to the unit as possible. This prevents a large
volume of water draining back into the unit when it is
switched off. (fig. 2-8)

Convoy the condensate to the outside with a positive slope,
from a trap at the end if necessary. (fig. 2-9)

300

Fig. 2-3

Fig. 2-5

Fig. 2-6

Fig. 2-7

Fig. 2-8

Fig. 2-9

7/9/12 1500 1100
16/18/22 1700 1100

AB

6

Intake coduct

False ceiling

Air intake

Outlet conduct

On the front and rear side of the unit a rectangular port
(with flange) helps during duct mounting. (fig. 2-10)

Rear and front flange for the air intake. The value included
in the brackets is referred to the model X18. (fig. 2-11)

Discarge air duct (optional accessory).
Contact the After Sale Service. (fig. 2-12)

Remove the filter and pour, inside the condensate drain
pan, 0.5 liter of water. Start the unit checking for proper
drain pump operation. (fig. 2-13)

Fig. 2-10

Fig. 2-11

Fig. 2-12

Fig. 2-13

2

1

There is a duct connection port  for drawing in fresh air.
The supplementary fan motor for outside air intake has to be supplied separately and controlled by a bipolar ON-OFF switch
with safety fuses.
Fresh air flow must be about 10% of the total air flow to avoid operating problems and noise.

•

Open the knock-out hole  , fix a  120 mm flange on the unit and connect the thermically insulated duct.

•

Install an outside grille with filter inspection port to prevent dust and leaves from entering and fouling the indoor unit heat
exchanger.

2-1 Duct for fresh air

7

3. TEST OF THE SYSTEM AND CONTROL OF THE AIR VOLUME TO THE OUTLET GRILLES

The unit is prearranged to supply an external static pressure
of about 5 mm. Too high resistances in the air distribution
system can cause an exceedingly small air volume to the
outlet grilles.
This trouble can be solved by increasing the fan speed as
follows:

Open the cover of the electrical junction box. Take out the
booster cable clamped in the box. (fig. 3-1)

Disconnect the fan motor plug in the electrical box and insert
the booster cable as a cable extension between the motor
plug and the socket from the PCB. The external static pres­sure will increase to 7 mm w.g. Check static pressure and air
flow rate on the fan performance graph. (fig. 3-2)

Fan motor

Fan motor

Booster cable

Booster cable

Connector motor cable (at the supply)

Fig. 3-1

Fig. 3-2

0

2

4

6

8

10

200 400 600 800 1000

H

HH

M

L

7/9/12

16/18/22

m3/h

m

3

/h

EXTERNAL STATIC PRESSURE (mmW.G.)

EXTERNAL STATIC PRESSURE (mmW.G.)

H = High fan speed
L = Low fan speed
HH = Very high fan speed
M = Middle fan speed

H: Standard supplied unit. Available fan speeds: Low-Midd-

le-High (L - M - H). Max. static pressure: about 5 mm

HH: Unit with cable extension of the fan motor (booster

cable). Available fan speeds: Middle-High-Very high (M ­H - HH). Max. static pressure: about 7 mm



10

8

6

4

2

0

300 500 700 900 1100 1300 1500

M

L

HH

H

8

4. ELECTRICAL WIRING

4-1. 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, and a power supply disconnect and cir­cuit breaker for overcurrent protection should be
provided in the exclusive line.

(3) To prevent possible hazards from insulation fail-

ure, the unit must be grounded.

(4) Each wiring connection must be done in accor-

dance 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.

(7) Regulations on wire diameters differ from locality

to locality. For field wiring rules, please refer to
your LOCAL ELECTRICAL CODES before begin­ning.

You must ensure that installation complies with all
relevant rules and regulations.

(8) To prevent malfunction of the air conditioner

caused by electrical noise, care must be taken
when wiring as follows:

● The remote control wiring and the inter-unit control

wiring should be wired apart from the inter-unit
power wiring.

● Use shielded wires for inter-unit control wiring

between units and ground the shield on both sides.

(9) If the power supply cord of this appliance is dam-

aged, it must be replaced by a repair shop
appointed by the manufacture, because special
purpose tools are required.

4-2. Recommended Wire Length and Wire Diameter for Power Supply System

* With ring-type wire terminal.

Outdoor unit

(A) Power supply

Wire size Max. length

2

SPW-CR604GDXH8 113 m 15 A
SPW-CR704GDXH8 74 m 30 A
SPW-CR904GDXH8 60 m 35 A
SPW-CR1154GDXH8 55 m 40 A
SPW-CR704GDCH8 47 m 35 A
SPW-CR904GDCH8 46 m 40 A
SPW-CR1154GDCH8

4 mm
6 mm
6 mm
6 mm
6 mm
6 mm
6 mm

2

2

2

2

2

2

39 m 50 A

Time delay fuse or
circuit capacity

Indoor unit

(B) Power supply

2.5 mm

Max. 130 m

Time delay fuse or

2

circuit capacity

10 ~ 16A

Control wiring

(C) Inter-unit (between outdoor and

(D) Remote control wiring (E) Control wiring for group control

indoor units) control wiring

0.75 mm

2

(AWG #18)

0.75 mm

2

(AWG #18)

Use shielded wiring* Use shielded wiring Use shielded wiring

Max. 1,000 m

Max. 500 m

or

(A) Power supply

Wire size Max. length

2.5 mm
6 mm
6 mm

10 mm

6 mm

10 mm
10 mm

2

70 m

2

74 m

2

60 m

2

91 m

2

47 m

2

77 m

2

65 m

0.75 mm

2

(AWG #18)

Max. 500 m (Total)

Time delay fuse or
circuit capacity

16A
35A
35A
50A
35A
50A
50A

NOTE

(F) Inter-outdoor unit control wiring

2

0.75 mm

(AWG #18)

Use shielded wiring

Max. 500 m

9

4-3. Wiring System Diagrams

(1) Refer to Section 5-2. “Recommended Wire Length

and Wire Diameter for Power Supply System” for
the explanation of “A,” “B,” “C,” “D,” and “E,” in the
above diagrams.

(2) The basic connection diagram of the indoor unit

shows the 7P terminal board, so the terminal
boards in your equipment may differ from the dia­gram.

(3) Refrigerant Circuit (R.C.) address should be set

before turning the power on.

7P terminal board

1(L)
power
supply

2(N) U1 U2

Inter-unit

control

wiring

R1 R2

Remote

controller

Power supply
220-240V 50Hz

Remote
controller

WHT
BLK

Power supply
220-240V 50Hz

Remote
controller

WHT
BLK

Group control:

Power supply
220-240V 50Hz

L
N

Ground

B

D

1

1

2

2

L
N

Ground

B

D

1

1

2

2

L
N

Ground

B

E

Indoor
unit (No. 1)

1

2

U1

U2

R1

R2

Indoor
unit (No. 2)

1

2

U1

U2

R1

R2

Indoor
unit (No. 3)

1

2

U1

U2

R1

R2

Outdoor unit

C

Ground

Ground

C

U1

U2

3

4

INV unit

A

1

2

3

4

5

L1
L2
L3
N

Ground

Power supply
380-415V-3N 50Hz

Ground

F

Inter-outdoor-unit control wiring

Outdoor unit
CS unit

Ground

C

3

4

A

1

2

3

4

5

L1
L2
L3
N

Ground

Power supply
380-415V-3N 50Hz

Ground

C

Indoor

Power supply
220-240V 50Hz

Remote
controller

1

WHT
BLK

1

2

2

L
N

Ground

D

unit (No. n)

B

1

2

U1

U2

R1

R2

Ground

NOTE

10

(1) When linking outdoor units in a network (S-net link system), disconnect the terminal extended from the

short plug (CN003, 2P Black, location: right bottom on the outdoor main control PCB) from all outdoor
units except any one of the outdoor units.
(When shipping: In shorted condition.)

Otherwise the communication of S-net link system is not performed. For a system without link (no con­nection wiring between outdoor units), do not remove the short plug.

(2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 4-1)

Fig. 4-1

Fig. 4-2

Fig. 4-3

CAUTION

(3) Do not install inter-unit control wiring such as star

branch wiring. Star branch wiring causes mis-address
setting.

(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.

(Branches less than 1 m are not included in the total branch number.) (Fig. 4-3)

Outdoor unit Outdoor unit Outdoor unit

Prohibited

Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit

NO

Outdoor unit Indoor unit Indoor unit Indoor unit

NO

Indoor unit Indoor unit Indoor unit

Branch point

Prohibited

Outdoor unit

Indoor unit

Branch
point

16 or fewer

Outdoor unit Outdoor unit Outdoor unit

Indoor unit Indoor unit Indoor unit Indoor unit

more than 1 m

Indoor unit

more than 1 m

Indoor unit

less than 1 m

Indoor unit

Indoor unit Indoor unit Indoor unit

11

Fig. 4-4

Fig. 4-5

Fig. 4-6

(5) Use shielded wires for inter-unit control wiring

(c) and ground the shield on both sides, other­wise misoperation from noise may occur.
(Fig. 4-4)
Connect wiring as shown in Section “4-3.
Wiring System Diagrams.”

Loose wiring may cause
the terminal to overheat or
result in unit malfunction.
A fire hazard may also
exist. Therefore, ensure
that all wiring is tightly
connected.

When connecting each power wire to the terminal, fol­low the instructions on “How to connect wiring to the
terminal” and fasten the wire securely with the fixing
screw of the terminal plate.

How to connect wiring to the terminal

■ For stranded wiring

(1) Cut the wire end with cutting pliers, then strip the

insulation to expose the stranded wiring about 10
mm and tightly twist the wire ends. (Fig. 4-5)

(2) Using a Phillips head screwdriver, remove the ter-

minal screw(s) on the terminal plate.

(3) Using a ring connector fastener or pliers, securely

clamp each stripped wire end with a ring pressure
terminal.

(4) Place the ring pressure terminal, and replace and

tighten the removed terminal screw using a screw­driver. (Fig. 4-6)

WARNING

Special
washer

Wire

Ground

Strip 10 mm

Screw

Ring pressure
terminal

Terminal plate

Shielded wire

Ground

Stranded wire

Ring
pressure
terminal

Screw and
Special washer

Ring
pressure
terminal

Wire