Carrier MAQB09B1 Installation manual

40MAQ / 38MAQ 619PB / 538PR High---Wall D uctless Split System Sizes 09 to 30

Installation Instructions

TABLE OF CONTENTS

PAGE

PARTS L IS T 2.......................................

SAFETY CONSIDERATIONS 3.........................

SYSTEM REQUIREMENTS 4...........................

DIMENSIONS 5......................................

CLEARANCES 6.....................................

INSTALLATION TIPS 7................................

INDOOR UNIT INSTALLATION 7.......................

OUTDOOR UNIT INSTALLATION 8.....................

INSTALL ALL POWER AND INTERCONNECTING WIRING

TO OUTDOOR UNITS 8...............................

ELECTRICAL DATA 9................................

CONNECTION DIAGRAMS 9..........................

INSTALL ALL POWER, INTERCONNECTING WIRING,

AND PIPING TO INDOOR UNIT 9......................

REMOTE CONTROL INSTALLATION 10.................

SYSTEM VACUUM AND CHARGE 10...................

START--UP 11........................................

TROUBLESHOOTING 12..............................

NOTE: Read the entire instruction manual before starting the installation.

PARTS LIST

Part

No.

1 Indoor Unit 1 2 Mounting Plate 1 3 M o u n t ing S c r e w A S T 3 . 9 x 2 5 --- C --- H 5 4 Anchor 5 5 Air Filter 1 6 Remote Control 1 7 Remote Control Holder 1 8 M o u n t ing S c r e w B S T 2 . 0 x 1 0 --- C --- H 2 9 Outdoor Unit 1

Name of Part Qty

■ Indoor

I o n

■ Outdoor

A U T

O O

L R Y

H E

A T

F A

N H I G

d e

O n/

i n

F a

n S e

l f C

l e

ol l o

w z er

t E

T u

F.P.

b o

i l e n

c e

Air Outlet

Note:

--- If the outdoor unit is higher than the indoor unit, prevent rain from flowing into the indoor unit along the connection pipe by making a downward arc in the connection pipe bef ore i t enters the wall to the indoor unit. This will ensure that rain will drip from the connection pipe before it enters the wall.

--- Piping and the interconnecting wiring are field supplied.

--- The illustration above is only a sketch. Different models may be slightly different.

A14342

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air--conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start--up, and service this equipment.

Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained service personnel.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.

Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment.

Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the

safety--alert symbol in instructions or manuals, be alert to the potential for personal injury.Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

. When you see this symbol on the unit and

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Do not bury more than 36 in. (914 mm) of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. (152 mm) vertical rise to the valve connections on the outdoor units. If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start--up.

WARNING

EXPLOSION HAZARD

Failure to follow this warning could result in death, serious personal injury, and/or property damage.

Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion.

CAUTION

SYSTEM REQUIREMENTS

Allow sufficient space for airflow and servicing unit. See Fig. 3 and 4 for minimum required distances between unit and walls or ceilings.

Piping

IMPORTANT: Both refrigerant lines must be insulated separately.

S Minimum refrigerant line length between the indoor and outdoor units is 10 ft. (3 m). S Table 1 lists the maximum lengths:

Table 1—Piping Lengths

9K 12K 9K 12K 18K 24K 30K

(115V) (115V) (208 ---230V) (208 --- 230 V) (208 --- 230 V) (208 --- 230 V) (208 --- 230 V)

164 (50)

0.16 (15) 0.16 (15) 0.16 (15) 0.16 (15) 0.16 (15) 0.32 (30) 0.32 (30)

3/8 (9.52) 1/2 (12.7) 3/8 (9.52) 1/2 (12.7)

2.76

(1.25)

2.76

(1.25)

2.76

(1.25)

2.76

(1.25)

1/2

(12.7)

4.19

(1.90)

5/8

(16)

5.18

(2.35)

5/8 (16)

6.62

(3.00)

Piping

Refrigerant

SYSTEM SIZE

Min. Piping Length ft (m) 10 (3) 10 (3) 10 (3) 10 (3) 10 (3) 10 (3) 10 (3) Standard Piping Length ft (m) 25 (7.5) 25 (7.5) 25 (7.5) 25 (7.5) 25 (7.5) 25 (7.5) 25 (7.5) Max. outdoor ---indoor

height difference Max. Piping Length with

no additional refrigerant charge

Max. Piping Length ft (m) 82 (25) 82(25) 82(25) 82(25) 98(30) 98(30)

Additional refrigerant charge (between Standard – Max piping length)

G a s P i p e ( s i z e --connection type)

Liquid Pipe (size --connection type)

Refrigerant Type R410A R410A R410A R410A R410A R410A R410A Heat Pump Models

Charge Amount

ft (m) 32 (10) 32 (10) 32(10) 32(10) 65(20) 65(20) 82(25)

ft (m) 26 (8) 26(8) 26(8) 26(8) 26(8) 26(8) 26(8)

Oz/ft

(g/m)

(mm)

in 1/4 in 1/4 in 1/4 in 1/4 in 1/4 in 3/8 in 3/8 in

(mm) 6.35 6.35 6.35 6.35 6.35 9.52 9.52

Lbs (kg)

S Above charge is for piping runs up to 25 ft. (7.6 m). S For piping runs greater than 25 ft. (7.6 m), add refrigerant up to the allowable length as specified in Table 2.

Table 2—Additional Charge Table

TOTAL LINE LENGTH ft ADDITIONAL CHARGE, oz/ft. ft (m)

UNIT SIZE

18 24 30 164

Min Max

10 --- 25

( 3 --- 8 )

None

> 2 5 --- 8 2

( 8 --- 2 5 )

0.1612

0.32 0.32

> 8 2 --- 1 6 4

( 2 5 --- 5 0 )

The outdoor unit (Sizes 09 -- 18) has an electronic expansion valve to manage the refrigerant flow of the fan coil connected. Sizes 24 and 30 have capillary tube metering devices in the outdoor unit.

WIRING

All wires must be sized per NEC (National Electrical Code) or CEC (Canadian Electrical Code) and local codes. Use Electrical Data table MCA (minimum circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively. Per the caution note, only stranded copper conductors with a 600 volt rating and double insulated copper wire must be used.

The use of BX cable is not recommended.

Recommended Connection Method for Power Communication Wiring -- Power and Communication W

and

iring:

The main power is supplied to the outdoor unit. The field supplied

PowerW

The main power is supplied to the outdoor unit. The field supplied power wiring from the outdoor unit to indoor unit consists of three (3) wires and provides the power for the indoor unit. Two wires are high voltage AC power and one is a ground wire. To minimize voltage drop, the factory recommended wire size is 14/2 stranded with a ground.

Communication W

A separate shielded Stranded copper conductor only, with a 600 volt rating and double insulated copper wire, must be used as the communication wire from the outdoor unit to the indoor unit. Please use a separate shielded 16GA stranded control wire.

iring:

14/3 power/communication wiring from the outdoor unit to indoor unit consists of four (4) wires and provides the power for the

CAUTION

indoor unit. Two wires are high voltage AC power, one is communication wiring and the other is a ground wire.

Recommended Connection Method for Power

and Communication Wiring (To minimize communication interfer

ence)

wiring

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

S Wires should be sized based on NEC and local codes.

S Use copper conductors only with a 600 volt rating and

double insulated copper wire.

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