Blue Ridge BM18M23C Manual de usuario

Multi Zone Outdoor

Installation Manual

IMPORTANT NOTE:

• Read this manual carefully before installing

or operating your new air conditioning unit.

Make sure to save this manual for future

reference.

• This manual only describes the installation

of outdoor unit. When installing the indoor

unit, refer to the installation manual of

indoor unit.

Table of Contents

Installation Manual

Safety Precautions.................................04

Accessories..................................................05

Installation Overview...........................06

Specications ............................................07

Outdoor Unit Installation ........................... 08

MC MC

Refrigerant Piping Connection.........................11

Test Run .................................................................. 22

Using the Automatic Wiring/Piping

Correction Function....................................... 23

Wiring.................................................. 14

Wiring Diagrams.............................. 16

Refrigerant Handling.....................................19

Procedure.................................................................19

Refrigerant chart ...................................................21

Adding refrigerant ................................................21

Revised 5/14/2020

WARNING

Page 4 

Safety Precautions

Read Safety Precautions Before Installation

Incorrect installation due to ignoring instructions can cause serious damage or injury.

The seriousness of potential damage or injuries is classied as either a WARNING or CAUTION.

Failure to observe a warning may result in death. The appliance must be installed in

accordance with national regulations.

Failure to observe a caution may result in injury or equipment damage.

This symbol indicates that you must never perform the action indicated.

1. Carefully read the Safety Precautions before installation.

2. For commercial applications, such as restaurant kitchens, server rooms, etc., the use of

specially designed air-conditioning units is highly recommended.

3. Only trained and certied technicians should install, repair and service this air conditioning

unit.

4. Improper installation may result in electrical shock, short circuit, leaks, re or other damage

to the equipment and personal property.

5. Strictly follow the installation instructions set forth in this manual.

6. Before you install the unit, consider strong winds, typhoons and earthquakes that might

aect your unit and locate it accordingly.

7. Do not use means to accelerate the defrosting process or to clean, other than those

recommended by the manufacturer.

8. This appliance is not intended for use by persons (including children) with reduced physical,

sensory or mental capabilities or lack of experience and knowledge, unless they have been

given supervision or instruction concerning use of the appliance by a person responsible for

their safety.

9. Children should be supervised to ensure that they do not play with the appliance.

10. An all-pole disconnect device must be incorporated in the high voltage wiring in accordance

with local and national electrical codes.

11. Any person who is involved with working on a refrigerant circuit should hold a current valid

certicate from an industry-accredited assessment authority.

12. Servicing shall only be performed as recommended by the equipment manufacturer.

13. Maintenance and repair should be carried out by qualied personnel.

14. Keep ventilation openings clear of obstruction.

15. Do not turn on the power until all work has been completed.

16. When moving or relocating the air conditioner, consult experienced service technicians for

disconnection and reinstallation of the unit.

CAUTION

Revised 5/14/2020

Optional Accessories

Page 5 

Accessories

The air conditioning system comes with the following accessories. Use all of the installation parts and

accessories to install the air conditioner. Improper installation may result in water leakage, electrical

shock and re, or equipment failure.

There are two types of remote controls: wired and wireless.

Select a remote controller based on customer preferences and requirements and install in an

appropriate place.

Refer to catalogues and technical literature for guidance on selecting a suitable remote

controller.

Name Shape Quantity

Installation plate 1

Plastic expansion sheath 5-8

(depending on models)

Self-Tapping Screw A ST 3.9X25 5-8

(depending on models)

Drain joint (some models) 1

Seal ring (some models) 1

Insulated copper

refrigerant lines

Liquid side

1/4”

Parts you must purchase.

Consult a technician for

the proper size.

3/8”

Gas side

3/8”

1/2”

5/8”

Owner’s manual 1

Installation manual 1

Refrigerant line adapter (packed with the indoor

or outdoor unit, depending on models)

NOTE: Pipe size may dier from appliance to

appliance. To meet dierent pipe size

requirements, sometimes the pipe connections

need an adapter installed on the outdoor unit .

Optional part

(1-5 pieces for outdoor

unit, depending on

models)

Revised 5/14/2020

1 2 3

456

Installation Overview

Installation

Overview

INSTALLATION ORDER

MC MC

Install the indoor unit

(separate manual)

Install the outdoor unit

(Page 09)

Connect the refrigerant

pipes (Page 12)

Connect the wires

(Page 14)

Perform a test run

(Page 24)

Evacuate the

refrigeration system

(Page 21)

Page 6 

Revised 5/14/2020

Specications

Table 5.1

Number of units that can be used

together Connected units 1-5 units depending on model

Compressor stop/start frequency Stop time 3 min or more

Power source voltage

voltage uctuation within ±10% of rated voltage

voltage drop during start within ±15% of rated voltage

interval unbalance within ±3% of rated voltage

Table 5.2 Unit: feet.

2 Zone 3 Zone 4 Zone 5 Zone

Max. length for all rooms 131’ 197’ 262’ 262’

Max. length for one indoor unit 82’ 98’ 115’ 115’

Max. height dierent between indoor and outdoor unit 49’ 49’ 49’ 49’

Max. height dierent between indoor units 33’ 33’ 33’ 33’

Min. length 10’ per

zone

10’ per

zone

10’ per

zone

10’ per

zone

Page 7 

When installing multiple indoor units with a single outdoor unit, ensure that the length of the

refrigerant pipe and the drop height between the indoor and outdoor units meet the requirements

illustrated in the following diagram:

Indoor unit

Outdoor unit

Revised 5/14/2020

Outdoor Unit Installation

Outdoor Unit Installation Instructions

Outdoor Unit

Installation

Page 8 

Step 1: Select installation location.

The outdoor unit should be installed in the

location that meets the following requirements:

Place the outdoor unit as close to the indoor

unit as possible.

Ensure that there is enough room for

installation and maintenance.

The air inlet and outlet must not be

obstructed or exposed to strong wind.

Ensure the location of the unit will not be

subject to snowdrifts, accumulation of

leaves or other seasonal debris. If possible,

provide an awning for the unit that does not

obstruct airow or maintenance access.

The installation area must be dry and well

ventilated.

There must be enough room to install the

connecting pipes and cables and to access

them for maintenance.

Step 2: Install outdoor unit.

Fix the outdoor unit with anchor bolts (M10)

The area must be free of combustible gases

and chemicals.

The pipe length between the outdoor and

indoor unit may not exceed the maximum

allowable pipe length.

If possible, avoid installing the unit where

it is exposed to direct sunlight.

If possible, make sure the unit is located far

away from your neighbors’ property so that

the noise from the unit will not disturb them.

If the location is exposed to strong winds

(for example: near a seaside), the unit must

be placed against the wall to shelter it from

the wind. If necessary, use an awning with at

least 18” of clearance.

(See Fig. 6.1 & 6.2)

Install the indoor and outdoor units, cables

and wires at least 3 feet from televisions or

radios to prevent static or image distortion.

Depending on the radio waves, 3 feet may

not be enough to eliminate all interference.

Strong wind

>24”

Fix with bolts

CAUTION

• Be sure to remove any obstacles

that may block air circulation.

• Make sure you refer to Length

Specications (Table 5.2) to

ensure there is enough room for

installation and maintenance.

Fig 6.3

Fig 6.1

Fig 6.2

Revised 5/14/2020

Outdoor Unit

Installation

Page 9 

Outdoor Units Table 6.1:

BM18M23C, BM27M23C, BM36M23C,

BMHH18M22C, BMHH27M22C

BMHH36M22C, BM48M22C, BMHH48M22C

Multiple Outdoor Unit

installation clearance requirements

Top View All Condensers

(A, B = mount point dimensions)

10 feet or more

2 feet or more

5 feet

or more

10 inches or more

Model W D H A B

BM18M23C 33.27" 14.29" 27.64" 21.3" 13.8"

BM27M23C 37.2" 16.5" 31.9" 26.5" 15.9"

BM36M23C 37.2" 16.5" 31.9" 26.5" 15.9"

BM48M22C 37.5" 16.3" 52.5" 25" 15.9"

BMHH18M22C 37.2" 16.5" 31.9" 26.5" 15.9"

BMHH27M22C 37.2" 16.5" 31.9" 26.5" 15.9"

BMHH36M22C 37.5" 16.3" 52.5" 25" 15.9"

BMHH48M22C 37.5" 16.3" 52.5" 25" 15.9"

Revised 5/14/2020

NOTE: Be sure to maintain minimum clearanc-

es for optimum operation as shown below.

NOTE: Heat insulating tape should be used

on the drain joint to prevent freezing in colder

climates.

Drain Joint Installation (optional)

” from back wall

” on right

above

” on left

78” in front

Note: Drain joint will require additional clearance beneath the unit.

Condensation drains under the unit without installing the drain joint.

Outdoor Unit

Installation

Page 10 

1. Fit the rubber seal on the end of the drain joint

that will connect to the outdoor unit.

2. Insert the drain joint into the hole in the bas

pan of the unit.

3. Rotate the drain joint 90° until it clicks in place

facing the front of the unit.

4. Connect a drain hose extension (not included

to the drain joint to redirect water from the

unit during heating mode.

If the drain joint doesn’t come with a rubber seal

(see Fig. 6 .9 - B ), do the following:

1. Insert the drain joint into the hole in the bas

pan of the unit. The drain joint will click in

place.

2. Connect a drain hose extension (not included)

to the drain joint to redirect water from the

unit during heating mode.

You must drill a hole in the wall for the refriger-

ant piping, and the signal cable that will connect

the indoor and outdoor units.

1. Determine the location of the wall hole based

on the location of the outdoor unit.

2. Using a 2.5” hole bit, drill a hole in the wall.

3. Place the protective wall cu in the hole. This

protects the edges of the hole and helps seal

it when you nish the installation process.

The 24K indoor unit can only be connected with

a 36k or 48k condenser due to refrigerant pipe

diameter. Use connection A on the 36k and

connections A&B on the 48k. (See Fig. 6.10)

Fig 6.8

Fig 6.9 Fig 6.10

Seal

Drain joint

(A) (B)

Base pan hole of

outdoor unit

Seal

Notes On Drilling Hole In Wall

Note: 24K Indoor Units Only

NOTE: When drilling the wall hole, make sure

to avoid wires, plumbing, and other sensitive

components.

Table 6.3: Refrigerant line size multizone

air handlers (unit: inch)

Indoor Unit capacity

(Btu/h) Liquid Gas

9K 1/4" 3/8"

12K/18K 1/4" 1/2"

24K 3/8" 5/8"

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