York RMHC 18-30 Operating instructions

Installation & Owner’s Manual

MODELS

RMHC 18-30

MINISPLIT

HIGH WALL

AIR CONDITIONER

EN 035M80159-000The units comply with one or more of the following marks - see unit for details.

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CONTENTS

Please read this installation

manual carefully before starting

the installation. It will tell you

necessary information.

Quality POLICY

We will continuously strive to sat-

isfy our customers with consistent

reliability in product, service and

support through superior qual-

ity, service culture and distinctive

technology.

R410A

Outdoor RMJCxxFA-GAA

Indoor RMKCxxFA-JAR

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

Part Names................................................................4

Manual Operation .....................................................5

How the Air Conditioner Works...............................5

Optimal Operation ....................................................6

Preparation Before Installation ...............................6

Installation Procedure..............................................9

Maintenance............................................................15

Operation Tips ........................................................16

Trouble Shooting Guide.........................................17

Technical Speciﬁcation..........................................18

Declaration of Conformity .....................................19

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ENGLISH

EXTENDED PARTS

1. Refrigerant Pipe

Models 18 21 27 30

Liquid size (inch) 1/4 1/4 1/4 1/4

Gas size (inch) 3/8

3/8 and 1/2

3/8

3/8 and 1/2

Pipe Insulation Material (Polyethylene foam 9 mm thick)

3. Vinyl tape

4. Putty

REQUIRED TOOLS

1. Screw driver 9. Manifold Guage

2. Hexagonal wrench 10. Gas leak detector

3. Torque wrench 11. Vacuum pump

4. Spanner 12. Pipe clamp

5. Reamer 13. Pipe Cutter

6. Hole core drill 14. Flare Tool Set

7. Tape measure 15. Electrical Circuit tester

8. Thermometer

SAFETY PRECAUTIONS

•Please read this installation manual carefully before starting installation of the unit.

•This air conditioning system contains refrigerant under pressure, rotating parts and electrical connection which

may be dangerous and can cause injury. Installation and maintenance of this air conditioning system should only

be carried out by trained and qualiﬁed personnel.

•After unpacking, please check the unit carefully for possible damage.

•Before undertaking any work on the unit, make sure that the power supply has been disconnected.

WARNING & CAUTIONS

Do not store or unpack the unit in a wet area or expose

to rain or water.

Do not install in a place where ﬂammable gas may

leak.

Do not conduct installation in wet area or in the rain. This system is designed for domestic or residential

use only.

It may cause the unit to short circuit and may result electric

shocks or ﬁre.

It may cause ﬁre.

It is a high risk to cause the electrical shocks. If used in certain environments, such as a manufacturing

workplace, the equipment may not function efﬁciently.

INSTALLATION

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ENGLISH

PART NAMES

CAUTIONS

1. If air conditioner is used outside of the above conditions,

certain safety protection features may come into

operation cause the unit to function abnormally.

2. Room relative humidity less than 80%. If the air

conditioner operates in excess of this ﬁgure, the surface of

the air conditioner may attract condensation. Please sets

the vertical air ﬂow louver to its maximum angle (Vertically

to the ﬂoor), and set HIGH fan mode.

3. Optimum performance will be achieved within these

operating temperature.

INDOOR UNIT

OUTDOOR UNIT

■INDOOR & OUTDOOR UNIT

■DISPLAY PANEL

1AUTO indicator

This indicator illuminates when the air conditioner is in AUTO

operation.

DEFROST indicator (For Cooling & Heating models only)

This indicator illuminates when the air conditioner starts

defrosting automatically or when the warm air control

feature is activated in heating operation.

3TEMPERATURE indicator

Displays the temperature settings when the air conditioner

is operational.

4OPERATION indicator

This indicator ﬂashes after power is on and illuminates when

the unit is in operation.

5TIMER indicator

This indicator illuminates when TIMER is set ON/OFF.

NOTE

All the pictures in this manual are for explanation purpose

only. They may be slightly different from the air conditioner

your purchased. The actual shape shall prevail.

OPERATING TEMPERATURE

DISPLAY PANEL

Signal receptor

8Remote controller signal

receiver

9Remote controller

0Manual control button

Connecting pipe, drain hose

=Air inlet (side and rear)

~Air outlet

1Front panel

2Air inlet

3Air ﬁlter

4Air outlet

5Horizontal air ﬂow grille

6Vertical air ﬂow louver

7Display panel

Mode

Temperature

Cooling

operation

Heating

operation

Drying

operation

Room temperature 17°C-32°C 17°C-30°C 17°C-32°C

Outdoor

temperature 18°C-43°C -7°C-24°C 18°C-43°C

122 345

DEFROSTDEFROST TIMERTIMER

AUTOAUTO OPERATIONOPERATION

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ENGLISH

MANUAL OPERATION

1Open and lift the front panel up to an angle at which it

remains ﬁxed with a clicking sound.

2Press the button until the AUTO indicator is lit, the unit

will work in forced AUTO mode.

3Close the panel ﬁrmly to its original position.

Manual operation can be used temporarily in case you can not ﬁnd the remote controller or its batteries are

exhausted.

HOW THE AIR CONDITIONER WORKS

■AUTOMATIC OPERATION

•When you set the air conditioner in AUTO mode, it will

automatically select cooling, heating (cooling/heating

models only), or fan only operation depending on

what temperature you have selected and the room

temperature.

•The air conditioner will control room temperature

automatically around the temperature point set by you.

•If the AUTO mode is uncomfortable, you can select desired

conditions manually.

■SLEEP OPERATION

•When you push SLEEP button during cooling, heating

(cooling only type without), or AUTO operation, the

air conditioner will automatically increase (cooling) or

decrease (heating) 1°C per hour. The set temperature

will be steady 2 hours later.

•The fan speed will be automatically controlled.

■DRYING OPERATION

•The dry mode will automatically select the drying

operation based on the difference between the set

temperature and the actual room temperature.

•The temperature is regulated while dehumidifying by

repeating turning on and off of the cooling operation or fan

only. The fan is low.

Manual control button

Panel CAUTIONS

Press Sleep button

Set

Temperature

1 hour 1 hour

Cooling

Press Sleep button

Set

Temperature

1 hour 1 hour

Heating

DRYING operation

Room

temperature

Time

set temperature

Cooling

Fan only

Cooling

Fan only

Cooling

•Once you push the manual button, the operation mode

is shifted in an order as: AUTO, COOL, OFF.

•Push the button twice, the unit will operate in forced

COOL mode. This is used for testing purposes only.

•Third press will stop the operation and turn off the air

conditioner operation.

•To restore the remote controller operation, use the remote

controller directly.

AUTO / COOL

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OPTIMAL OPERATION

To achieve optimal performance, please note the following:

•Adjust the air ﬂow direction correctly so that it is not directed on people.

•Adjust the temperature to achieve the highest comfort level. Do not adjust the unit to excessive temperature

levels.

•Close doors and windows on COOL or HEAT modes, or performance may be reduced.

•Use TIMER ON button on the remote controller to select a time you want to start your air conditioner.

•Do not put any object near air inlet or air outlet, as the efﬁciency of the air conditioner may be reduced and the air

conditioner may stop running.

•Clean the air ﬁlter periodically, otherwise cooling or heating performance may be reduced.

•Do not operate unit with horizontal louver in closed position.

PREPARATION BEFORE INSTALLATION

•Before doing any work, check the interior power supply cord and the main breaker capacity are sufﬁcient and the

installation area is sufﬁcient and complies with the requirements.

•Check that the power supply available agrees with nameplate voltage.

•Electrical work, wiring and cables must be performed in compliance with national and local wiring codes and

standard.

•Do not use the extension cables. In the case extended cables are needed, use the terminal block.

SELECTION OF THE LOCATION

•Select a place which provides the space around the units as shown in the diagram below.

INDOOR OUTDOOR

Models 18 21 27 30

A 12cm 12cm 12cm 12cm

B 70cm 70cm 70cm 70cm

C 12cm 12cm 12cm 12cm

D 15cm 15cm 15cm 15cm

•Do not install in a place that cannot bear the weight of the unit.

CAUTIONS

Models 18 21 27 30

A 10cm 10cm 10cm 10cm

B 100cm 100cm 100cm 100cm

C 60cm 60cm 60cm 60cm

D 45cm 45cm 45cm 45cm

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OUTDOOR UNIT PICTURES

PARTS INSTALLATION

Number

Name of part Q’ty

1 Installation plate 2x1

2 Self-tapping screw ST3.9x25 2x8

3 Plastic Expansion Pipe 2x8

Connection

Pipe Ass.

Liquid side ø 6.35

Parts you must

purchase

Gas side

ø 9.53 / ø 12.7

5 Remote controller 2x1

6 Mounting screw ST2.9x10 2x2

7 Remote controller holder 2x1

8 Seal 2x1

9 Drain elbow 1x1

370

680

895

345

655

625

Model 18-21 Model 27-30

330

350

920

583

355

320

820

830

Loop a connective

cable

Model 18-21Model 18-21

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A1 Unit

INDOOR UNIT

B Unit

Mounting screw A

ST3.9x25-C-H

Clip anchor 4.3cm

Installtion plate

>12cm

>17cm

Air filter

Mounting screw B

ST2.9x10-C-H

Remote controller

holder

Remote

controller

Installtion plate

4.3cm

Mounting screw A

ST3.9x25-C-H

Clip anchor

>12cm or more

>17cm

Air filter

Remote

controller

Remote controller

holder

Mounting screw B

ST2.9x10-C-H

ST3.9x25-C-H

Clip anchor

Installtion plate

4.3cm

>12cm

>17cm

Air filter

Mounting screw B

ST2.9x10-C-H

Remote

controller

Remote controller

holder

OUTDOOR UNIT

>60cm

>20cm

>100cm

>60cm

Mounting screw C

ST3.9x10-C-H

Water tray

>20cm

Loop the connective

cable (about 300mm

long)

A2 Unit

Note:

Connect the auxiliary pipe

of the three indoor units to

the stop valves as identiﬁed

with their respective matched

numbers A1, A2, and B on the

outdoor unit. After ﬁnishing

connection, the indoor units

must be marked relative

number A1, A2 and B.

Model 27-30

NOTE: At least two of A, B, C aspect are free from

blocking.

The air conditioner can be connected only to a supply

with system impedance no more than 0.26 ohm. In case

necessary please consult your supply authority for system

impedance information.

■

Cautions on remote controller installation

•Before installation, operate the remote controller to

determine its location in a reception range.

•Keep the remote controller at least 1 m apart from the

nearest TV set or stereo equipment.

•Do not install the remote controller in a place exposed

to direct sunlight or close to a heating source, such as a

stove.

•Note that the positive and negative poles are right

positions when loading batteries.

Model 27-30

Number Name of part Q’ty

1 Installation plate 3x1

2 Mounting screw A. 3x8

3 ST3.9x25-C-H Clip anchor 3x8

4 Remote controller 3x1

5 Mounting screw B. 3x2

ST2.9x10-C-H Remote controller holder

3x1

7 Seal 3x1

8 Drain elbow 1x1

9 Mounting screw C ST3.9x10-C-H 1x2

10 Water tray 1x1

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.....

....

...

....

...

......

.....

...

INDOOR UNIT

INSTALLATION PROCEDURE

■Fixing

•Place the installation guide pattern on the designated

installation place and mark the hole position.

•Drill a hole and mount installation plate.

ø 65 mm

•

Make 6 mm 4-6 holes, in the wall at the four corners of

mounting plate (bracket) then insert appropriate mounting

devices.

•

Install the mounting plate using 4-6 pieces of mounting

screw securely at four corners and tighten the screw

completely. Do not over tighten the screws and deform

the back plate.

Outdoor

Indoor

Note: When installing

the refrigerant pipes from

others side. A hole must be

place to allow fall

towards the outdoor unit.

•Be careful when handling the sharp edge of the

mounting plate.

•After determining the pipe

hole position drill the hole

at a slight downward slant

towards the outdoor side.

■Piping

The auxiliary piping can be connected in the directions

shown the above diagram. To connect in the D, Eand

Fdirection, pipes will need to be extended.

•Bend pipes carefully to avoid ﬂattening or obstructing

them if the pipes are bent incorrectly, the indoor unit

may be unstable on the wall.

•Carefully arrange pipes so that pipes do not stick out

of the rear plate of the indoor unit.

•Never modify the unit by removing any of the safety

guards or by passing any of the safety interlock

switches.

•Connect the interconnecting cable correctly and con-

nect the connecting cable to terminal as identiﬁed with

their respective marking.

•Do not damage the conductor core or inner insulation

of power supply cables and do not deform or crush

the cables.

CAUTIONS

■Wiring

•This indoor unit is ready for connection to the outdoor

unit.

Right

Right Left

Rear Bottom

CAUTIONS

750

052

MODEL 18-30

Indoor unit outline 15 cm or more to

ceiling Installation plate

12 cm or more

to wall

12 cm or more

to wall

Left

refrigerant

pipe hole

ø65 mm

Right

refrigerant

pipe hole

ø65 mm

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ENGLISH

•The drain hose can be connected to the left or the

right side.

Veriﬁcation of condensate water drainage:

Fill the drain pan with water and observe evacuation.

Drain hose

For left and left rear piping (Factory standard)

Drain cap

■Indoor Unit Fixing

•Thread the indoor unit piping and cable through the hole.

•Hang the top of the unit onto the upper ridge of them in mounting plate.

•Make sure that the unit is correctly hung in place by sliding it to the left, then to the right.

•Press the bottom left and bottom right hand corners of the unit against the mounting plate until the ﬁxing prongs

click into place in the retainers provided to that effect.

Drainage line

Interconnection cable

Note: The condensate evacuation line should be taped to the

refrigerant lines with vinyl tape.

a) Access plate for the

condensate drainage

pump detection

(condensate pump is

available as an

accessory).

Condensate

drainage line

Vinyl tape

■Drain hose

•Drain hose is ﬂexible and can be routed to suit vari-

ous piping arrangements. The drain line must include

elbow trap (U bend). Connect a plastic condensate

pipe with an internal diameter of 12 mm.

Note: Do not put the drain hose end into water.

Drain hose

For right connection

Drain cap

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