Heat Controller REG-71A, REG-123A User Manual

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SERVICE MANUAL

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5EG-123A

CAUTION

• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

Air Conditioner Service Manual

TABLE OF CONTENTS

Safety Precautions..........................................................................................................................................3

Dimensions .....................................................................................................................................................5

Symbols Used in this Manual......................................................................................................................5

Outside Dimensions...................................................................................................................................5

Product Specifications ..................................................................................................................................6

Installation.......................................................................................................................................................7

Select the Best Location ...........................................................................................................................7

Installation Check.......................................................................................................................................7

How to Secure the Drain Pipe(When using drain pipe)..............................................................................7

How to Install(Models without Installation Kit)............................................................................................8

How to Install(Models with Installation Kit).................................................................................................9

Suggested Tool Requirements .................................................................................................................11

Operation ......................................................................................................................................................14

Features...................................................................................................................................................14

Control Locations Function of Controls....................................................................................................14

Disassembly..................................................................................................................................................15

Mechanical Parts......................................................................................................................................15

Air Handling Parts ....................................................................................................................................16

Electrical Parts .........................................................................................................................................17

Refrigerating Cycle...................................................................................................................................19

Schematic Diagram.......................................................................................................................................22

Wiring Diagram.........................................................................................................................................22

Troubleshooting Guide.................................................................................................................................23

Piping System ..........................................................................................................................................23

Troubleshooting Guide .............................................................................................................................24

Room Air Conditioner Voltage Limits........................................................................................................26

2 Room Air Conditioner

Service Manual 3

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must
be followed.

■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.

■ Meanings of symbols used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property only.

WARNING

■ Installation

Do not use damaged power cord plugs, or a
loose socket.

• There is risk of fire or electric shock.

Always use the power plug and socket with
the ground terminal.

• There is risk of electric shock.

Be sure not to do.

Be sure to follow the instruction.

4 Room Air Conditioner

Safety Precautions

Do not modify or extend the power cord.

• There is risk or fire or electric shock.

Do not install, remove, or re-install the unit by
yourself(customer).

• There is risk of fire, electric shock, explosion, or injury.

Be cautious when unpacking and installing
the product.

• Sharp edges could cause injury. Be especially careful

of the case edges and the fins on the condenser and
evaporator.

Do not store or use flammable gas or com­bustibles near the air conditioner.

• There is risk of fire or failure of product.

Be sure the installation area does not deterio­rate with age.

• If the base collapses, the air conditioner could fall with

it, causing property damage, product failure, and per­sonal injury.

Gasolin

Sharp edges

Dimensions

Dimensions

H

W

D

Outside Dimensions

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the
air conditioner.

This symbol indicates special notes.

NOTICE

Symbols Used in this Manual

Service Manual 5

Model

Dimension

W mm(inch) 471(189/16

H mm(inch) 352(13 7/8) 380(14 31/22)

Dmm(inch)525(20 11/16)576(22 1/16)

REG-71A REG-123A

) 600(23

Heat

5

/8)

6 Room Air Conditioner

Specfications

Product Specifications

MODELS

ITEMS

OPERATING

CONDITION

COOLING

HEATING

* DB:Dry Bulb
**

WB:Wet Bulb

NOTE: Please refer to Label Quality on the produst since this specification may be changed for improving performance.

POWER SUPPLY

COOLING CAPACITY (Btu/h)

INPUT (W)

RUNNING CURRENT (A)

E.E.R (BTU/W.h)

HEATING CAPACITY (Btu/h)

INPUT (W)

RUNNING CURRENT (A)

REFRIGERANT (R-22) CHARGE

EVAPORATOR

CONDENSER

FAN, INDOOR

FAN, OUTDOOR

FAN SPEEDS, FAN/COOLING/HEATING

FAN MOTOR

OPERATION CONTROL

ROOM TEMP. CONTROL

AIR DIRECTION CONTROL

CONSTRUCTION

ELECTRIC HEATER

PROTECTOR FAN MOTOR

POWER CORD

DRAIN SYSTEM

NET WEIGHT (lbs/kg)

OUTSIDE DIMENSION (inch)

(W x H x D) (mm)

COMPRESSOR

ELECTRIC HEATER

INDOOR(°C)

OUTDOOR(°C)

INDOOR(°C)

OUTDOOR(°C)

REG-71A REG-123A

1Ø,115V, 60Hz 1Ø, 208/230V, 60Hz

6,900 11,500/12,000

710 1,170/1,220

6.6 5.5/5.8

9.7 9.8/9.8

3850 9,200/11,200

1,260 2,900/3,500

11.0 14.0/15.3

26.7 (DB)* 19.4 (WB)**

35 (DB)* 23.9 (WB)**

21.1 (DB)* 15.6 (DB)**

8.3 (DB)* 6.1 (DB)**

385(13.6 oz) 605(21.3 oz)

2ROW 14STACKS 2ROW 13STACKS

2ROW 16STACKS 2ROW 17STACKS

BLOWER

PROPELLER TYPE FAN WITH SLINGER-RING

1 / 2 / 2

6 POLES

TOUCH PANEL

THERMISTOR

VERTICAL LOUVER(RIGHT&LEFT)

HORIZONTAL LOUVER(UP&DOWN)

SLIDE IN-OUT CHASSIS

1.2KW, 115V 3.5KW, 230V

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

FUSE LINK, BIMETAL THERMOSTAT

1.6m(3 WIRE WITH GROUNDING)

ATTACHMENT PLUG(CORD-CONNECTED TYPE)

DRAIN PIPE OR SPLASHED BY FAN SLINGER

60/27 87/39

18 X 13 7/8 X 20 11/16 235/8 X 14 31/22 X 22 5/16

470 X 353 X 525 600 X 380 X 525

Service Manual 7

Installation

Installation

Select the Best Location

Installation Check

How to Secure the Drain Pipe(When using drain pipe)

1.To prevent vibration and noise, make sure the unit is
installed securely and firmly.

2.Install the unit where the sunlight does not shine directly
on the unit.

3.The outside of the cabinet must extend outward for at
least 12" and there should be no obstacles, such as a
fence or wall, within 20" from the back of the cabinet
because it will prevent heat radiation of the condenser.
Restriction of outside air will greatly reduce the cooling
efficiency of the air conditioner.

CAUTION: All side louvers of the cabinet

must remain exposed to the outside of
the structure.

4.Install the unit a little slanted so the back is slightly lower

than the front (about 1/2"). This will help force condensed
water to the outside.

5.Install the unit from the bottom about 30"~60" above the

floor level.

The setting conditions must be checked prior to initial starting.
The following items are especially important checking points when the installation is finished.

1. Grounding wire (Green or Green and Yellow) is provided in the power cord. The green wire must be grounded.

2. Connect to a single-outlet 15A circuit.

(or 20A circuit for Electric Heater Model)

3. To avoid vibration or noise, make sure the air conditioner is installed securely.

4 Avoid placing furniture or draperies in front of the air inlet and outlet.

In humid weather, excess water may cause the BASE PAN to overflow. To drain
the water, remove the DRAIN CAP and secure the DRAIN PIPE to the rear hole of
the BASE PAN. Press the drain pipe into the hole by pushing down and away from
the fins to avoid injury.

Optional

1. Install the drain pan over the corner of the cabinet where you removed the
plug with 4 (or 2) screws.

2. Connect the drain hose to the outlet located at the bottom of the drain pan.
You can purchase the drain hose or tubing locally to satisfy your particular
needs. (Drain hose is not supplied).

3. Select the most appropriate connection from among the following figures (by
considering the hole of the unit) to fit drain pan to your own unit.

AWNING

COOLED AIR

HEAT

RADIATION

30"~60"

ABOUT 1/2"

Over 20"

FENCE

Drain pipe

Drain cap

Fig. 4

Fig. 3

Fig. 2

DRAIN
PAN

DRAIN HOSE

Fig. 1

CABINET

SCREW

Figure 1

8 Room Air Conditioner

Installation

How to Install(Models without Installation Kit)

1. Remove the screws that fasten the cabinet
at both sides and at the back.

2. Slide the unit from the cabinet by gripping
the base pan handle and pulling forward
while bracing the cabinet.

3. Remove EPS Material.

4. Slide the unit into the cabinet.

CAUTION: For security pur­pose, reinstall screw at cabi­net's sides.

5. Attach the front grille to the cabinet by
inserting the tabs on the grille into the tabs
on the fornt of the cabinet. Push the grille in
until it snaps into place.

6. Lift the inlet grille and secure it with a screw
through the front grille.

Shipping screws

T

IM
E

R

ENERGY
SAVER

M
O

D
E

On/Off

On/Off

Fan Cool

Heat

TIMER

E
N

E
R
G

Y
S
A

V
E
R

MODE

On/Off

On/Off

Fan

Cool
Heat

EPS Material

TIMER

E
N
E

R
G

Y
S
A
V

E

R

MODE

O
n

/O

ff

O
n
/O

ff

F
a

n
C
o

o

l
H
e

a

t

Power cord

Screw

Screw

TIMER

E
N
E

R
G

Y
S
A

V

E

R

MODE

O

n

/O

ff

O
n

/O
f
f

F
a
n

C
o
o
l
H
e
a
t

T

IM

E

R

ENERGY
SAVER

M

O

D

E

O

n

/

O

f

f
O

n

/

O

f

f

F

a

n

C

o

o

l

H

e

a

t

Service Manual 9

Installation

How to Install(Models with Installaion Kit)

When Using Gasket

When Using Installation Kits

1. Window Requirements

This unit is designed for installation in
standard double hung windows with actual opening
widths from 27" to 39".
The top and bottom window sash must open suffi­ciently to allow a clear vertical opening of 16" from the
bottom of the upper sash to the window stool.

2. Installation Kits Contents

A

B

DE

F

H

2

3

I

4

2

1

A

RIGHT SIDE

HORIZONTAL
LINE

B

1. WINDOW (WIDTH-A, HEIGHT-B)

2. GASKET

3. WALL

4. DETAILS 5.1 x 30 ROUND HEAD WOOD
SCREWS

ABCDE F HI

625mm 392mm 280mm 30mm 0~25mm OVER 420mm 5~10mm -5~5mm

(245/

8") (15

7

/

16") (11

1

/

32") (1

1

/

16") (0~1") (OVER 16

17

/

32") (

3

/

16"~

3

/

8") (-

3

/

16"~

3

/

16")

27" to 39"

16" min

Stool

Interior wall

235

/8" min

(Without frame curtain)

Offset

1

/2" to 11/4"

Sill

Exterior

■ Top retainer bar is in
the product package.

NO. NAME OF PARTS Q'TY

1 FRAME CURTAIN 2
2 SILL SUPPORT 2
3 BOLT 2
4 NUT 2
5

SCREW(TYPE A) (10mm(

2

/

5"))

16

6

SCREW(TYPE B)

3

7

SCREW(TYPE C)

5
8 FOAM-STRIP 1
9

FOAM-PE (920mm x 30mm x 2mm)

1

10

UPPER GUIDE

1

11

FOAM-PE

(600mm x 25mm x 2mm)

1

12 FRAME GUIDE 2
13

WINDOW LOCKING BRACKET

1

14 DRAIN PIPE 1

D5.1mm(0.2")/16mm(0.63")

D4.1mm(0.17")/16mm(0.63")

REG-123A

1

5

13

14

12

2 3 4

76

8 9

11

10