McQuay M5MSY18BR, M5MSY20BR, M5MSY30BR, M5MSY25BR User Manual

Inverter-Y Multi Split

Models: M5MSY18BR M5MSY20BR M5MSY25BR M5MSY30BR

Catalog

M5MSY_(i)

Supercedes:

M5MSY-B-2011

M5MSY_(i) Table of Contents

Table of Contents

Nomenclature......................................................................................................................1

Indoor ............................................................................................................................1

Outdoor ..........................................................................................................................1

Product Line-Up .............................................................................................................2

Application Information .....................................................................................................5

Operating Range ...........................................................................................................5

Refrigerant Circuit Diagrams .........................................................................................6

Installation Guideline .....................................................................................................7

Engineering & Physical Data ...........................................................................................20

Performance Data .............................................................................................................26

Outline and Dimension ....................................................................................................29

Wiring Diagram .................................................................................................................34

Service and Maintenance.................................................................................................40

Troubleshooting ...............................................................................................................42

Exploded View and Part List ...........................................................................................50

Bulletin illustrations cover the general appearance of McQuay International products at the time of publication.

We reserve the right to change design and construction speciﬁ cations at any time without notice.

Nomenclature M5MSY_(i)

Nomenclature

Indoor

M 5 WM Y 10 L R – A C B D D

Brand

M: McQuay

Refrigerant

5: R410A

Product Specification

Variation

D: Fourth Issue

Grille

D: Grille D

Product Type

WM: Wall Mounted CK : Ceiling Cassette CC: Ceiling Concealed CM: Ceiling Mounted

Inverter System Type

Y: Y Series

Size

10 :

10,000 Btu/h

15,000 Btu/h

15 :

20,000 Btu/h

20 :

25 :

20,000 Btu/h

Product series

L: L series J: J series C: C Series E: E series

Outdoor

Brand

M: McQuay

M 5 MS Y 18 B R – A C D O A

Type of Air Filte

B: Bio Filter

Market Region

C: Export with CE Markin

Electrical Characteristics

A : 50Hz / 1Ph / 220-240V

F : 50Hz / 3Ph / 380-415V

Model

“ ”: Cooling Only

Product Specification

R: Heat Pump

Variation

A: First Issue

Refrigerant

5: R410A

Product Type

MS: Multi Split Condensing Unit

Inverter System Type

Y: Y Series

Size

18 :

18,000 Btu/h

20 :

20,000 Btu/h

25,000 Btu/h

25 :

30 :

30,000 Btu/h

Product series

B: B Series

Specifications Variation

O: Standard Unit

Compresso

D: Daikin Compresso

Market Region

C: Export with CE Markin

Electrical Characteristics

A : 50Hz / 1Ph / 220-240V F : 50Hz / 3Ph / 380-415V

Model

“ ”: Cooling Only

R: Heat Pump

M5MSY_(i) Nomenclature

Product Line-Up

Indoor Unit M5WMY-L Series/J Series

Classiﬁ cation

M5WMY

10LR ACBDD X X X X X X X

15LR ACBDD X X X X X X X

10JR ACLAD X X X X X

15JR ACLAD X X X X X

HEATPUMP

20JR ACLTC X X X X X

Indoor Unit M5CKY-C Series

Nomenclature

GS01

Handset

PCB

W_2_03A

Air

Puriﬁ cation

Saranet Filter

Bio Antibody Filter

Classiﬁ cation

Marking

Titanium Apatite

Filter

Others

Auto Restart

Handset

M5CKY

Nomenclature

GS01

10CR ACOA X X X

15CR ACOA X X X

20CR ACOA X X X

HEATPUMP

PLCKYCR NGS01 X X X

PCB

C_2_01A_M

Air

Puriﬁ cation

Saranet Filter

Negative Ionizer

Nano Technology Air

Filtration

Marking

Others

Auto Restart

Nomenclature M5MSY_(i)

Indoor Unit M5CCY-C Series

Classiﬁ cation

M5CCY

10CR ACPA X X X X X

15CR ACPA X X X X X

HEAT-

PUMP

20CR ACPA X X X X X

Indoor Unit M5CMY-E Series

Nomenclature

Netware 3C

Handset

PCB

C_2_01A_M

PCB

Air

Puriﬁ cation

Saranet Filter

Negative Ionizer

Classiﬁ cation

Air

Puriﬁ cation

Nano Technology Air

Filtration

Marking

Others

Auto Restart

Others

M5CMY

Nomenclature

GS01

15ER ACAA X X X X X

20ER ACAA X X X X X

HEAT-

PUMP

C_2_01A_M

Saranet Filter

Negative Ionizer

Nano Technology Air

Filtration

Auto Restart

M5MSY_(i) Nomenclature

Outdoor Unit M5MSY-BR

Classiﬁ cation

Refrigerant

M5MSY

18BR ACDOA

20BR ACDOA

25BR ACDOA

30BR ACDOA

HEATPUMP

Nomenclature

Cap Tube

Control

EXV

XX XXX

Fin

Gold coated

Blue coated

Bare

ContactorHPLP

Safety

Devices

Compressor

DC Inverter SwingCEDrain Elbow

Marking

Others

* Remark : M5MSY18BR is not recommended to couple with M5WMY10/15 JR (for Wall Mounted series). M5MSY18BR is recommended to couple with M5WMY10/15 LR (for Wall Mounted series).

Application Information M5MSY_(i)

Application Information

Operating Range

Ensure the operating temperature is in allowable range.

Heatpump - M5MSY20/25/30BR

Heating

Outdoor temp. (°CWB)

-16

15 20

Indoor temp. (°CDB)

Heatpump - M5MSY18BR

Heating

Standard

point

Cooling

46 43

Outdoor temp. (°CDB)

12 2319

Indoor temp. (°CWB)

Cooling

Outdoor temp. (°CWB)

-16

15 20

Indoor temp. (°CDB)

Indoor temp. (°CWB)

Caution :

The use of your air conditioner outside the range of working temperature and humidity can result in serious failure

M5MSY_(i) Application Information

Refrigerant Circuit Diagrams

Model: M5MSY18BR M5MSY20BR

Model: M5MSY25BR M5MSY30BR

Application Information M5MSY_(i)

Installation Guideline

Installation of Outdoor Unit

• The outdoor unit must be installed in such a way, so as to prevent short circuit of the hot discharged air or

obstruction to the smooth air ﬂ ow. Please follow the installation clearance shown in the ﬁ gures below. Select the coolest possible place where intake air temperature is not greater than the outside air temperature (maximum 45°C/113°F)

• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airﬂ ow, follow the installation

guidelines below.

• For any of the below installation patterns, the wall height on the exhaust side should be 1200mm or less.

Wall facing two sidesWall facing one side

More than 100

Side View

More than 350

1200

or less

More than 50

More than 100

More than 350

More than 50

Top Vie w

Wall facing three sides

More than 100

More than 50

More than 350

Top View

Unit : mm

• Before installing the piping and connecting cord, please remove the access panel and plastic valve cover for

easy access. Refer to ﬁ gures shown below.

PLEASE REMOVE ACCESS PANEL & PLASTIC VALVE COVER WHEN CONNECTING THE PIPING AND CONNECTING CORD.

PUSH & PULL UP

• There are 2 holes on the base of Outdoor Unit for

condensed water to ﬂ ow out. Insert the drain elbow to one of the holes.

• To install the drain elbow, ﬁ rst insert one portion

of the hook to the base (portion A), then pull the drain elbow in the direction shown by the arrow while inserting the other portion to the base. After installation, check to ensure that the drain elbow clings to base ﬁ rmly.

• If the unit is installed in a snowy and chilly area, condensed water may freeze in the base. In such case, please remove plug at the bottom of unit to smooth the drainage.

BASE

Plug

DRAIN ELBOW

M5MSY_(i) Application Information

Installation Diagram

Wall Mounted

Indoor Unit

Cut thermal insulation pipe to an appropriate length and wrap it with tape, making sure that no gap is left in the insulation pipe's cut line.

Wrap the insulation pipe with the finishing tape from bottom to top.

Front panel

50mm or more from walls (on both sides)

30mm or more from ceiling

Caulk pipe hole gap with putty.

Air filter

Air-Purifying Filter with bacteriostatic virustatic function (2)

Air-Purifying Filter with bacteriostatic virustatic function

Filter frame

Tab

Air filter

Outdoor Unit

M4 x 12L

Opening service lid

Service lid

Service lid is opening/closing type.

Opening method

1) Remove the service lid screws.

2) Pull out the service lid diagonally down in the direction of the arrow.

1) Pull down.

250mm from wall

Caution

Before installing the unit, ensure that the power supply matches the power requirement of the air conditioner.s

Installation of Indoor Unit

Service Space

Install the indoor unit at a location with the following requirements

• Location is suitable for wiring, piping and drainage.

• No obstruction of air ﬂ ow into and out of unit where cooler air can be evenly distributed.

• Ensure that air discharge is not short circuited with air intake.

• Ensure that wall is sufﬁ ciently strong, rigid, ﬂ at, perpendicular and vibration free.

• Where air ﬁ lter cassette can be slided in or out easily.

• Where there is no danger of ﬂ ammable gases.

• Where there is no direct sunlight on unit.

Air flow (Indoor)

min. 50

(Space for maintenance)

Required space

min. 50

(Space for maintenance)

rofecapS(

03.nim

)ecnamrofrep

Application Information M5MSY_(i)

Ceiling Cassette

Front Panel

Air Filter

(behind the grille)

Air Discharge Louver

Drain Piping

Thermal Insulation

Wrap the insulated pipe with the finishing tape from bottom to top

Air Intake Grille

Preliminary Site Survey

• Electrical supply and installation is to conﬁ rm to local authority’s (e.g. National Electrical Board) codes and

regulations.

• Voltage supply ﬂ uctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply ﬂ uctuation.

• Ensure that the location is convenient for wiring, piping and drainage.

• The indoor unit must be installed in such that free from any obstacles in path of cool air discharge and warm air return, and must allow spreading or air throughout the room (near the centre of the room).

• Clearance must be provided for the indoor unit from the wall and obstacles as shown in the ﬁ gure.

Beam

Min 0.5 m Min 0.5 m

Min 1.0 m

Obstacles

Max 3.0 m

Floor

• The installation place must be strong enough to support a load of 4 times the indoor unit weight to avoid

amplifying noise and vibration.

• The installation place (handling ceiling surface) must be level and the height in the ceiling is 350mm or

more.

Min 0.5 m

Max 3.0 m

M5MSY_(i) Application Information

Unit Installation

15.0

38.0

505.0

32.0

580.0 ~ 610mm (CEILING OPENING MEASUREMENT)

538.0

18.0

)TNEMERUSAEMGNINEPOGNILIEC(mm016~0.085

88.0448.0

19.0529.0

M5CKY-C

• The indoor unit must be away from heat and steam sources (avoid installing it near an entrance).

• Measure and mark the position for the hanging rod. Drill the hole for the angle nut on the ceiling and ﬁ x

the hanging rod.

• The installation template is extended according to temperature and humidity. Check on dimensions in

using.

• The dimensions of the installation template are same as those of the ceiling opening dimensions.

• Before ceiling laminating work is completed, be sure to ﬁ t the installation template to the indoor unit.

Note: Be sure to discuss the ceiling drilling work with the installers concerned.

Unit Hanging

Indo or U nit

Ceiling Bo

ard

30.0mm

M5CKY-C/E

• Conﬁ rm the pitch of the hanging rod is 770mm x 622mm sharp (M5CKY-E)

• Hold the unit and hand it on the hanging rod with the nut and washer.

• Adjust the unit height to 35.0mm between the indoor unit bottom surface and the ceiling surface.

• Conﬁ rm with a level gauge that the unit is installed horizontally and tighten the nut and bol to prevent unit falling and vibration. Open the ceiling board along the outer edge of the paper installation template.

•

Application Information M5MSY_(i)

Ceiling Concealed

Hanger

Return duct

Supply duct

Wrap the insulated pipe with the finishing tape from bottom to top

Ceiling

Drain piping

Thermal insulation

Preliminary Survey

• Electrical supply and installation is to conﬁ rm to local authority’s (e.g. National Electrical Board) codes and

regulations.

• Voltage supply ﬂ uctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply ﬂ uctuation.

• Ensure that the location is convenient for wiring, piping and drainage.

• Clearance must be provided for the indoor unit from the wall and obstacles as shown in the ﬁ gure.

• Use the hanger supplied with the unit.

• Ensure the support is strong enough to withstand the weight of the unit.

• Use the supplied drain socket to connect the drain pipe

Install the unit in such a way that

the condensate water can flow out smoothly.

M5MSY_(i) Application Information

The diagrams below show the screws position for duct work connection.

Application Information M5MSY_(i)

Ceiling Convertible

Preliminary Site Survey

• Electrical supply and installation is to conﬁ rm to local authority’s (e.g. National Electrical Board) codes and

regulations.

• Voltage supply ﬂ uctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply ﬂ uctuation.

• Ensure that the location is convenient for wiring, piping and drainage.

Standard Mounting

Ensure that the overhead supports are strong enough to hold the weight of the unit. Position the hanger rods (wall mounting bracket for ﬂ oor standing), and check for its alignment with the unit as shown in Fig. below. Also,check that the hangers are secured and the base of the fan coil unit is leveled in both horizontal directions, taking into account the gradient for drainage ﬂ ow as recommended under section Piping and Drain Hose Installation.

M5MSY_(i) Application Information

Please ensure that the following steps are taken:

• Check the gradient for drainage ﬂ ow as recommended in Figure A.

• Provide clearance for easy servicing and optimal air ﬂ ow as shown in Figure B.

• The indoor unit must be installed such that there is no short circuit of the cool discharge air with the warm return air.

• Do not install the indoor unit where there is direct sunlight shining on the unit. The location should be suitable for piping and drainage installation. The unit must be a large distance away from the door.

Fig.A

Under ceiling type

Floor standing type

Fig.B

Application Information M5MSY_(i)

Under Ceiling Installation

Install the Suspension Bolts

1. Install the suspension bolts so that it can support the indoor unit.

2. Adjust the distance to ceiling before installation.

3. Refer to the dimension given to install the unit.

Install the Indoor Unit

1. Insert the suspension bolts into the ﬁ ttings of the hanger bracket.

2. Set the nuts and washer on the both side of the metal ﬁ ttings.

3. Secure it with nuts.

4. Attach the hanger cover (4 pcs) to the units.

M5MSY_(i) Application Information

Floor Standing Installation

1. Refer to the dimension as illustrated when installing the mounting bracket.

2. Determine the pipe hose position using the rear piping hole. Drill the pipe hole at the slight downward

slant to the outdoor side.

MOUNTING BRACKET

HOCK THE UNIT ON THE MOUNTING BRACKET

WALL

Application Information M5MSY_(i)

REFRIGERANT PIPING Piping Length & Elevation

If the pipe is too long, both capacity and reliability of the unit will drop. As the number of bends increases, resistance to the ﬂ ow of refrigerant system increases, thus lowering cooling capacity. As a result, the compressor may become defective. Always choose the shortest path and not exceed the maximum piping length as tabulated below.

Single Indoor

Maximum

Piping

Length(m)

Maximum

height

Difference(m)

Pre-charged

Total Piping

length (m)

Outdoor Unit Pre-charged

(kg)

1.2 20

L ≤ 25 H ≤ 15 30 2.6 20

Amount of

Additional

Charge (g/m)

Model

M5MSY18BR (2 Ports)

M5MSY20BR (2 Ports)

M5MSY25BR (3 Ports)

M5MSY30BR (4 Ports)

Maximum

Total Piping

Length (m)

+ L2 ≤ 30 L ≤ 20 H ≤ 15 15

L1+ L2 ≤ 50 L ≤ 25 H ≤ 15 30 2.0 20

+ L2+ L3 ≤

+ L2+ L3+ L

≤ 60

VERTICAL HEIGHT DIFFERENCE MAX. H

INDOOR UNIT

OUTDOOR UNIT

* Remark : Applicable for Wall Mounted, Ceiling Cassette, Ceiling Concealed, Ceiling Convertible unit.

M5MSY_(i) Application Information

Piping Connection To The Units

• The outdoor unit is equipped with two to four sets of ﬂ are joints depending on O/D unit model. Refer to the

table below for ﬂ are joint size and location.

Model Pipe A B C D

M5MSY18BR

M5MSY20BR

M5MSY25BR

M5MSY30BR

ELECTRICAL WIRING CONNECTION IMPORTANT: The ﬁ gures shown in the table are for information purpose only. They should be checked and

selected to comply with the local/national codes of regulations. This is also to the type of installation and conductors used.

Liquid 1/4” 1/4” - -

Gas 3/8” 3/8” - -

Liquid 1/4” 1/4” - -

Gas 1/2” 1/2” - -

Liquid 1/4” 1/4” 1/4” -

Gas 3/8” 1/2” 1/2” -

Liquid 1/4” 1/4” 1/4” 1/4”

Gas 3/8” 3/8” 1/2” 1/2”

Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D

1 2 SIG N L

SIGNLNLNLNLNL

There must be a double pole switch with a minimum 3 mm contact gap and fuse/ circuit breaker as

SIG

1 2 SIG N L1 2 SIG N L

SIG SIG

1 2 SIG N L

DCBA

Power

Supply

Power Supply

recommended in the ﬁ xed installation circuit.

• All wiring must be connected accordingly to the diagram above, with reference to the piping connection. Mismatch any wiring with different piping will cause severe damage to the system.

• All wires must be ﬁ rmly connected.

• All wires must not touch the refrigerant piping, compressor or any moving parts of the fan motor.

• The connecting wires between the indoor unit and the outdoor unit must be clamped on the wire clamps and the cable tie (push releasable) at the indoor unit and outdoor unit respectively as shown in the ﬁ gures.

• The power supply cord must be equivalent to H07RN-F (245IEC57) or higher.

• Remove the detachable part of the access cover to allow wire routing.

• All wires must not be clamped by the access panel cover.

Detachable part

Wires mustn't be clamped

Wire Clamp

Interconnection

Cable

+ 46 hidden pages

McQuay M5MSY18BR, M5MSY20BR, M5MSY30BR, M5MSY25BR User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual