Carrier 38MVQ009, 38MVQ012, 38MVQ018, 38MVQ024, 38MVC009 Installation Instructions Manual

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Installation Instructions

TABLE OF CONTENTS

PARTS LIST ....................................... 2

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

GENERAL ......................................... 3

SYSTEM REQUIREMENTS .......................... 3

DIMENSIONS ...................................... 4

SERVICE VALVE LOCATIONS ........................ 4

CLEARANCES ..................................... 5

INSTALLATION TIPS ............................... 6

INDOOR UNIT INSTALLATION ....................... 6

OUTDOOR UNIT INSTALLATION ..................... 7

INSTALL ALL POWER AND INTERCONNECTING WIRING

TO OUTDOOR UNIT .............................. 8-9

INSTALL ALL POWER, INTERCONNECTING WIRING,

AND PIPING TO INDOOR UNIT ..................... 10

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

SYSTEM VACUUM AND CHARGE ................... 11

START-UP ........................................ 12

TROUBLESHOOTING .............................. 13

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PAGE

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

Part
No.

Name of Part

1 Mounting Plate
2 Mounting Screw ST3.9x25-C-H
3 Anchor
4 Remote Control

5 Remote Control Holder
6 Mounting Screw B ST2.0xlO-C-H

PARTS LIST

Qty No.

1 1
8 2

8 3
1 4

1 5
2 6

Part

Name of Part Qty

Mounting Plate 1
Mounting Screw A ST3.9x25-C-H 8

Anchor 8

Remote Control 1
Remote Control Holder 1
Mounting Screw B ST2.0xlO-C-H 2

Remote Control

Mounting screw B

ST2.9X10-C-H

Remote control holder

Remote control

Remote control holder

Air Inlet

__ Air Inlet

Air outlet

f

Loop the

connecting Loop the connectinc Removethewater receiverfirst

cab e. cable, beforeconnectngthe pipes.

A07334a

Fig. 1 - 40MVC,MVQ/38MVC,MVQ009-012

Parts List

Fig. 2 - 40MVC, MVQ/38MVC,MVQ018-024

Parts List

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 before it enters the wall to the indoor unit. This will ensure that rain will drip from the connection pipe before it enters the wall.

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

A07335a

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 flmctions 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 !_X. When you see this symbol on the unit and
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 nfinor personal

injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or

operation.

ELECTRICALSHOCK 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 ram) of refrigerant pipe

in the ground. If any section of pipe is buried, there nmst be

a 6 in. (152 ram) vertical rise to the valve connections on

the outdoor units. If more than the recommended length is
buried, refrigerant may nfigrate to the cooler buried section
during extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start-up.

GENERAL

These instructions cover the installation, start-up and servicing of
38MVC,MVQ outdoor and 40MVC, MVQ indoor units duct free
systems.

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.

IMPORTANT: Both refrigerant lines must be insulated

separately.

• Minimum refrigerant line length between the indoor and outdoor

units is 10 ft. (3 m).
The following n_axinmm lengths are allowed:

REFRIGERANT LINELENGTHSR. (m)

Unit Size Max Line Length (ID over OD) (ODover ID)

9K 65 (20) 35 (11) 35 (11)
12K 65 (20) 35 (11) 35 (11)
18K 100(30) 50 (15) 50 (15)

24K 100(30) 60 (18) 60 (18)

The following are the piping sizes.

Unit Size

9K

12K
18K

24K

Refrigerant Charge

REFRIGERANT CHARGE lb. (kg)

Unit Size Air Conditioner Heat Pump

9K 2.3 (1.0) 2.4 (1.1)

12K 2.9 (1.3) 3.0 (1.4)
18K 4.4 (2.0) 4.5 (2.0)
24K 5.3 (2.4) 5.3 (2.4)

Above charge is for piping runs up to 25 ft. (7.6 m).

• For piping runs greater than 25 ft. (7.6 m), add 0.1 oz. of

refrigerant per foot of extra piping up to the allowable
length.

• Capillary tubes in outdoor unit are used as metering devices.
Connecting (Power and Control Cable)

• The main power is supplied to the outdoor unit. The field
supplied connecting cable from the outdoor unit to indoor unit

consists of four wires and provides the power for the indoor unit
as well as the communication signal between the outdoor and

indoor unit.
For 9K and 12K units, all four wires are low voltage DC.

For 18K and 24K, two wires are high voltage AC power, one is
pulse DC and one is a ground wire.

• Consult local building codes, NEC (National Electrical Code) or
CEC (Canadian Electrical Code) for special requirements.

Model Size MAX FUSE/CB

9k
12k
12k
18k
24k

Connecting Cable: Voltage drop on the connecting cable

should be kept to a nfininmm. Do not use thermostat wire. Use
cable size and max length below:

18AWG 50 Feet (16m)
16AWG 100Feet (33m)

MaxElevation Max Elevation

PIPE SIZES

Mix Phase

1/4"
1/4"

1/4"

3/8"

Power Source

115-1-60

208/230-1-60

Vapor

3/8"

1/2"
1/2"

5/8"

MIN CKTAMP

AMP

12/20
15/25

9/15

11/20
14/25

DIMENSIONS - INDOOR

Model Size in. (mm) in. (mm) in. (mm) Operating Weight Ib (kg)

9K 32.09 (815) 11.02 (280) 7.68 (195) 17.6 (8)

12K 35.67 (906) 11.26 (286) 9.25 (235) 25.3 (11.5)
18K 49.21 (1250) 12.80 (325) 9.06 (230) 39.6 (18)

24K 49.21 (1250) 12.80 (325) 9.06 (230) 39.6 (18)

DIMENSIONS - OUTDOOR

D

A07336

W H D

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I IH==

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W

L1

I r========4._| _ m

4-

_k

solb L.

Model Size in. (mm) in. (mm) in. (mm) in. (mm) in. (mm) Ib (kg)

9K 30.71 (780) 21.26 (540) 21.61 (549) 11.81 (300) 10.87 (276) 70.4 (32)

12K 29.92 (760) 23.23 (590) 20.87 (530) 12.40 (315) 11.42 (290) 79.2 (36)
18K 33.07 (840) 27.36 (695) 22.05 (560) 14.17 (360) 13.19 (335) 116.6 (53)

24K 35.00 (889) 33.50 (851) 23.11 (588) 13.98 (355) 13.11 (333) 149.6 (68)

SERVICE VALVE LOCATIONS

W H L1 L2 L3 Operating Weight

9K 12K 18K

24K

Cooling Only

A07337

Operating Weight

Ib (kg)

Heat Pumps

72.6 (33)

83.6 (38)

117.7 (53.5)
151 (68.5)

Service Valve Locations in. (mm) in. (mm) in. (mm) in. (mm)

J 3.46 (88) 3.19 (81) 3.46 (88) 4.02 (102)
K 3.46 (88) 5.63 (143) 3.62 (92) 6.57 (167)

..... I1_tl .....

IK IIIt_]j K

A07376a

9K 12K 18K 24K

CLEARANCES - INDOOR

CLEARANCES - OUTDOOR

CEILING

J-6"(0.15m!._mi n.

/

6' (i8m)

FLOOR

A07891

Fig. 3 - Indoor unit clearance

IA

C

Air-outle

UNIT 9k and 12k in. (mm) 18k and 24k in. (mm)

A 24 (610) 24 (610)

B 24 (610) 36 (914)

C 24 (610) 24 (610)
D 6 (152) 6 (152)

E 12 (305) 12 (305)

Fig. 4 - Outdoor Unit Clearance

Air-inlet

A07894