Carrier 38MVQ, 40MVC, 40MVQ, 38MVC User Manual

40MVC / 38MVC 40MVQ / 38MVQ

High---Wall Duct Free Split System Sizes 009 to 024

Installation Instructions

TABLE OF CONTENTS

PAGE

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

the environmentally sound refrigerant

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

38/40MVC, MVQ

PARTS LIST

	Part	Name of Part	Qty
	No.
	1	Mounting Plate	1
	2	Mounting Screw ST3.9x25---C---H	8
	3	Anchor	8
	4	Remote Control	1
	5	Remote Control Holder	1
	6	Mounting Screw B ST2.0x10---C---H	2
		3

1

2

3

Air	filter

4

Remote control

6

5

Remote control holder

Air Inlet

Air Inlet

Air outlet

Loop the connecting cable.

A07334a

	Part	Name of Part	Qty
	No.
	1	Mounting Plate	1
	2	Mounting Screw A ST3.9x25---C---H	8
	3	Anchor	8
	4	Remote Control	1
	5	Remote Control Holder	1
	6	Mounting Screw B ST2.0x10---C---H	2

2	3
	1

Air filter

4

Remote Control

Mounting screw B

ST2.9X10-C-H

Remote control holder

6

5

Loop the connecting
		Remove the water receiver first
cable.		before connecting the pipes.

A07335a

Fig. 1 --- 40MVC,MVQ/38MVC,MVQ009-012	Fig. 2 --- 40MVC, MVQ/38MVC,MVQ018-024
Parts List	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.

2

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

!WARNING

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.

!CAUTION

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.

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.

Piping

IMPORTANT: Both refrigerant lines must be insulated separately.

SMinimum refrigerant line length between the indoor and outdoor units is 10 ft. (3 m).

S The following maximum lengths are allowed:

REFRIGERANT LINE LENGTHS ft. (m)

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

S The following are the piping sizes.

	PIPE SIZES
Unit Size	Mix Phase	Vapor
9K	1/4”	3/8”
12K	1/4”	1/2”
18K	1/4”	1/2”
24K	3/8”	5/8”
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)

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

S Capillary tubes in outdoor unit are used as metering devices.

Connecting (Power and Control Cable)

SThe 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.

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

	Model Size	Power Source	MIN CKT AMP
			MAX FUSE/CB
			AMP
	9k	115---1---60	12/20
	12k		15/25
	12k		9/15
	18k	208/230---1---60	11/20
	24k		14/25

SConnecting Cable: Voltage drop on the connecting cable should be kept to a minimum. Do not use thermostat wire. Use cable size and max length below:

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

38/40MVC, MVQ

3

DIMENSIONS - INDOOR

38/40MVC, MVQ

							A07336
	Model Size	W	H	D	Operating Weight lb (kg)
		in. (mm)	in. (mm)	in. (mm)
	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

Air Flow

H

																	L1				W
				L2
					D
											35
																																							A07337
Model Size	W	H								L1									L2			L3						Operating Weight											Operating Weight
																																			lb (kg)				lb (kg)
	in. (mm)	in. (mm)							in. (mm)								in. (mm)				in. (mm)
																													Cooling Only										Heat Pumps
9K	30.71 (780)	21.26 (540)			21.61 (549)										11.81 (300)						10.87 (276)							70.4 (32)											72.6 (33)
12K	29.92 (760)	23.23 (590)			20.87 (530)										12.40 (315)						11.42 (290)							79.2 (36)											83.6 (38)
18K	33.07 (840)	27.36 (695)			22.05 (560)										14.17 (360)						13.19 (335)							116.6										(53)	117.7 (53.5)
24K	35.00 (889)	33.50 (851)			23.11 (588)										13.98 (355)						13.11 (333)							149.6 (68)											151 (68.5)

SERVICE VALVE LOCATIONS

9K		12K	18K
			K
J	K	J	J

	24K
K	K
	J

					A07376a
	Service Valve Locations	9K	12K	18K	24K
		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)

4

CLEARANCES - INDOOR

CEILING

6" (0.15m) min.

5"	5"
(0.13m)	(0.13m)
min.	min.
6'	(1.8m)

FLOOR

A07891

Fig. 3 --- Indoor unit clearance

CLEARANCES - OUTDOOR

A

Air-inlet

E

D	B	C
		Air-outlet
		A07894
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

38/40MVC, MVQ

5