York MHC-MHH User manual

035T80000-000

MODELS

MHC-MHH/BOC-BOH 07

MHC-MHH/BOC-BOH 09

MHC-MHH/BOC-BOH 12

MHC-MHH/BOC-BOH 18

MHC-MHH/BOC-BOH 25

Installation Manual

MINISPLIT

HIGHWALL

AIR CONDITIONER

Installation Manual

01_MHC/BOH 07-25.p65 18/3/02, 16:181

HIGHWALL

Please read this installation manual

carefully before starting the installation.

It will tell you necessary information.

Quality POLICY

We will continuously strive to satisfy

our customers with consistent reliability

in product, service and support.

CONTENTS

Safety Precautions ......................................4

Part List.........................................................5

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

Installation Diagram ....................................8

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

Test Operation............................................13

Trouble Shooting Guide ............................14

Technical Specification .............................15

02_MHC/BOH 07-25.p65 18/3/02, 16:302

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REQUIRED TOOLS

Screw driver

Hexagonal wrench

Torque wrench

Spanner

Reamer

Hole core drill

Tape measure

Thermometer

Manifold Guage

10.

Gas leak detector

11.

Vaccum pump

12.

Pipe clamp

13.

Pipe Cutter

14.

Flare Tool Set

15.

Electrical Circuit tester

EXTENDED PARTS

Refrigerant Pipe

Models MHC-MHH/BOC-BOH

07-09 12 18-25

Liquid size 1/4 inch 1/4 inch 3/8 inch

Gas size 3/8 inch 1/2 inch 5/8 inch

Pipe Insulation Material (Polyethylene foam

9 mm thick)

Vinyl tape

Putty

02_MHC/BOH 07-25.p65 18/3/02, 16:303

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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

andmaintenanceofthisairconditioningsystemshouldonlybecarried out bytrained

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.

CAUTIONS FOR INSTALLATION

Do not install in a place where flammable gas may

leak.

It may cause fire.

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

to rain or water.

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

shocks or fire.

Do not conduct installation in wet area or in the rain.

It is a high risk to cause the electrical shocks.

This system is designed for domestic or residential

use only.

If used in certain envionments, such as a manufacturing

workplace, the equipment may not function efficiently.

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PART LIST

Part No. Name of part

MHC-MHH/BOC-BOH 07, 09, 12 MHC-MHH/BOC-BOH 18, 25

Mounting Plate and Mounting Template

Indoor Unit

Drain Hose

*Included with indoor unit

Central mounting bracket

4*Not supplied

Screws and Anchor Set

Remote Control and Battaries Set

Installation and Owner’s manual

Quantity

—TEMP—

MODE

—

˚C˚C

˚C

SETCLEAR

TIMER

—

—TEMP —

MODE

—

˚C˚C

˚C

SET CLEAR

TIMER

—

Installation Manual

Owner's Manual

Installation Manual

Owner's Manual

02_MHC/BOH 07-25.p65 18/3/02, 16:315

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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.

Models MHC-MHH/BOC-BOH

07 09 12 18 25

A 60cm 60cm 60cm 60cm 60cm

B 70cm 70cm 70cm 70cm 70cm

C 60cm 60cm 60cm 60cm 60cm

D 10cm 10cm 10cm 10cm 10cm

Models MHC-MHH/BOC-BOH

07 09 12 18 25

A 20cm 20cm 20cm 20cm 20cm

B 60cm 60cm 60cm 60cm 60cm

C 40cm 40cm 40cm 40cm 40cm

D 20cm 20cm 20cm 20cm 20cm

Outdoor

Cautions

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

Indoor

BO 07-12

BO 18

BO 25

497133.5 133.5

248

230

268

429

150 550 150

100100

234

315

287 2424 335

517

144 144

296

260

316

02_MHC/BOH 07-25.p65 18/3/02, 16:316

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Installation of the outdoor unit in a place exposed

regularly to a strong wind.

Installation of the indoor unit in a place where there

is an obstacle near the air inlet or outlet.

Installation of the indoor unit at too low a position

Installation of outdoor units too close or, blowing

discharged air into each other.

Installation of the indoor unit in direct sun light.

Installation in the unit in wrong direction.

INSTALLATION IN THE FOLLOWING PLACES MAY RESULT IN TROUBLE

10 cm

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INSTALLATION DIAGRAM

Auto louver (vertical)

Manual louver (horizontal)

10 cm or more

20 cm or more

60 cm or more

Vinyl tape

Gas side piping

Liquid side piping

Additional drain hose

Connecting cable

Vinyl tape

Apply after carrying out a drainage

test.

* To carry out the drainage test,

remove the air filters and pour

water into the heat exchanger.

60 cm or more

Installation plate

Remove the cover plate screw

to have access to the terminal

board.

70 cm or more

60 cm or more

02_MHC/BOH 07-25.p65 18/3/02, 16:318

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INSTALLATION

PROCEDURE

INDOOR UNIT

■Fixing

•Place the installation guide pattern on the designated

installation place and mark the hole position.

•Drill a hole and mount installation plate.

•After determining the pipe

hole position. Drill the hole

at a slight downward slant

towards the outdoor side.

Note : When installing

the refrigerant pipes from

others side. A hole must

be place to allow fall

towards the outdoor unit.

•Make ø5mm.4-6 holes, in the wall at the four corners

of mouting plate (bracket) then insert appropriate

mouting 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.

Caution

•Be careful when handling the sharp edge of the

mounting plate.

■Wiring

•This indoor unit is ready for connection to the outdoor

unit.

Cautions

•Never modify the unit by removing any of the safety

guards or by bypassing any of the safety interlock

swithces.

•Connect the interconnecting cable correctly and

connect 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.

■Piping

The auxiliary piping can be connected in the diections

shown the above diagram.To connect in the D, E and F

direction, pipes will need to be extended.

Cautions

•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.

Outdoor

Indoor

ø70 mm

ARight

BRight

CRight FLeft

ERear Bottom

DRight

..............

..........

........

...

..............

............

........

......

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■Drain hose

• Drain hose is flexible and can be routed to suit various

pipingarrangements.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.

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

right side.

For left and left rear piping

Verification of condensate water drainage:

Fill the drain pan with water and observe evacuation.

■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.

(MHC-MHH/BOC-BOH 07-25)

• For the model MHC-MHH/BOC-BOH 18 and 25 and

install the central mounting bracket as shown in the

below diagram.

(MHC-MHH/BOC-BOH 18 and 25)

Note:The condensate evacuation line should be taped to

the refrigerant lines with vinyl tape.

Drain hose

Drain cap

Drain hose

Drain cap

Drainage line

Interconnection cable

Condensate

drainage line

Vinyl tape

a) Access plate for the

condensate drainage

pump detection

(condensate pump is

available as an

accessory).

Mounting Plate

Central Mounting Bracket

03_MHC/BOH 07-25.p65 18/3/02, 16:3110

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