Carrier 40VMU Installation And Maintenance Instructions Manual Download Page 2

2

GENERAL

The 40VMU under ceiling/floor unit can be installed exposed

at the ceiling or mounted on the wall close to the floor. It is

ideal for corner or low-ceiling areas where soffit space is not

available for furred-in units.

The equipment is initially protected under the manufacturer’s

standard warranty; however, the warranty is provided under the

condition  that  the  steps  outlined  in  this  manual  for  initial

inspection,  proper  installation,  regular  periodic  maintenance,

and everyday operation of the unit be followed in detail. This

manual  should  be  fully  reviewed  in  advance  before  initial

installation, start-up and any maintenance. Contact your local

sales representative or the factory with any questions BEFORE

proceeding.

Table lists physical data for each unit size. See Fig. for the

model number nomenclature. Figures and 3 show the unit

dimensions. Table 2 shows components that may or may not be

used for a particular installation.

Table 1 — 40VMU Physical Data

CAUTION

DO NOT re-use compressor oil or any oil that has been

exposed to the atmosphere. Dispose of oil per local codes

and regulations. DO NOT leave refrigerant system open to

air any longer than the actual time required to service the

equipment.  Seal  circuits  being  serviced  and  charge  with

dry  nitrogen  to  prevent  oil  contamination  when  timely

repairs  cannot  be  completed.  Failure  to  follow  these

procedures  may  result  in  damage  to  equipment.  For

information about replacement oil type and viscosity, see

the Installation, Start-Up, and Service Instructions for the

38VMAH and 38VMAR outdoor units.

UNIT 40VMU

012

015

018

024

030

036

048

POWER SUPPLY (V-Ph-Hz)

208/230-1-60

COOLING CAPACITY (Btuh)

12,000

15,000

18,000

24,000

30,000

36,000

48,000

HEATING CAPACITY (Btuh)

13,500

17,000

21,000

27,000

34,000

40,000

54,000

INDOOR FAN MOTOR

Type

DC Motor

Input (W)

24

47

53

80

107

67*2

115*2

INDOOR COIL

Number of Rows

2

3

Fin Spacing (fins/in.)

15

14

Fin Type

Aluminum with Hydrophilic Coating

Tube Diameter, OD (in.)

3

/

8

Tube Type

Copper Tube with Inner Groove

Number of Circuits

3

5

7

INDOOR AIRFLOW (cfm)

Low

259

359

394

494

624

906

929

Medium

294

412

424

529

676

976

1000

High

335

441

471

571

729

1094

1353

INDOOR NOISE LEVEL (dBA)

Low

35.8

41.7

44.1

50.2

50.4

48.4

50.6

Medium

37.7

45.4

46.5

52.0

52.1

50.3

52.3

High

40.5

47.2

48.5

53.8

53.9

53.0

59.8

UNIT

Unit Dimensions, W x H x D (in.)

39 x 26 x 8

50-

1

/

2

 x 26 

x 8

66 x 27 x 10

Packing Dimensions, W x H x D (in.)

43 x 29-

1

/

2

 x 12

55 x 29-

1

/

2

 

x 12

75-

1

/

2

 x 30 x 13

Net/Gross Weight (lb)

57/71

62/75

77/90

106/128

REFRIGERANT TYPE

R-410A

EXPANSION DEVICE

EEV (Built-In)

DESIGN PRESSURE, High/Low (psig)

580/320

REFRIGERANT PIPING (in.)

Liquid Side, OD

1

/

4

3

/

8

Suction Side, OD

1

/

2

5

/

8

CONNECTING WIRING

Power Wiring

Sized per NEC and Local Codes Based on Nameplate Electrical Data

Signal Wiring

2-Core Stranded Shielded Cable 18 AWG

CONDENSATE DRAIN PIPE DIAMETER, OD (in.)

5

/

8

LEGEND

AWG — American Wire Gage

EEV

— Electronic Expansion Valve

NEC

— National Electrical Code

Summary of Contents for 40VMU

Page 1: ...ll result in severe personal injury or death WARNING signifies hazards that could result in personal injury or death CAUTION is used to identify unsafe practices which would result in minor personal i...

Page 2: ...ures may result in damage to equipment For information about replacement oil type and viscosity see the Installation Start Up and Service Instructions for the 38VMAH and 38VMAR outdoor units UNIT 40VM...

Page 3: ...Connect the drain hose to condensate connec tion Flexible conduit and connectors 1 Routing power lines Hanging bracket 4 Used for hanging the unit Installation guide for metallic flexible pipe 1 Mount...

Page 4: ...ns shown in inches Fig 2 40VMU012 030 Dimensions NOTE All dimensions shown in inches Fig 3 40VMU036 048 Dimensions 40VMU UNIT SIZE DIMENSION in A B C D 012 024 39 26 8 19 7 8 30 50 1 2 26 8 31 1 4 A B...

Page 5: ...SITE FOR UNIT INSTALLATION To save time and to reduce the possibility of costly errors set up a complete sample installation in a typical room at the job site Check all critical dimensions such as pip...

Page 6: ...h locknuts and washers on both sides Ensure the threaded rod does not protrude more than 1 in below the mounting hole on the hanging bracket as shown in Fig 7 Fig 7 Mounting the Hanging Bracket 3 Remo...

Page 7: ...the indoor and outdoor units If the difference between them is more than 33 ft consider mounting the outdoor unit above indoor unit Refrigerant piping connection between indoor and outdoor units shou...

Page 8: ...d cables to the unit s power terminal Be sure the power wiring and control wiring do not cross This might cause disturbance on the controls side See Fig 15 for wiring diagrams OUTSIDE DIAMETER IN RECO...

Page 9: ...iliary Heat CS Condensate Switch Optional CTON Output for Cooling Operation EEV Electronic Expansion Valve FAN Output for Fan Operation FM Indoor Fan Motor HTON Output for Heating Operation PUMP Pump...

Page 10: ...r to fix the communication wire on the outdoor unit communication terminal as shown in Fig 19 Fig 19 Connecting Communication Wire to Outdoor Unit Communication Terminal If communication wires are use...

Page 11: ...or To No 1 indoor To No 2 indoor To Sub MDC Main MDC unit To outdoor To outdoor L1 L2 L3 L3 L3 L3 L4 L4 L5 L6 L7 L8 L9 L10 L11 Indoor unit 1 HA HB Indoor unit 2 Indoor unit 3 Indoor unit 4 Indoor unit...

Page 12: ...L5 L6 L7 L8 L9 L10 L11 L3 L3 L3 L3 Indoor unit 1 Indoor unit 2 Indoor unit 4 Indoor unit 5 Indoor unit 6 Indoor unit 3 P Q HA HB HA HB HA HB HA HB HA HB HA HB P Q Network Resistor wired controller To...

Page 13: ...hedule In addition Clean condensate tray with suitable cleaning agent Clean the grille and panel if applicable EVERY 12 MONTHS Follow the 6 month maintenance schedule In addition Be sure all electrica...

Page 14: ...confirm and exit the setting interface Fig 27 Non Programmable Controller Setting IDU Address Programmable Controller When setting an address connect only one wired controller to an indoor unit 1 Pre...

Page 15: ...mmunication Error Between Indoor and Outdoor Unit E2 Check Indoor Ambient Temperature Sensor T1 T0 E4 Check Evaporator Temperature Sensor T2B E5 Check Evaporator Outlet Temperature Sensor T2A E6 Check...

Page 16: ...E9 Communication Error Between Indoor Unit and Controller Signal wires are short circuited or disconnected Check or reconnect signal wires Signal wires close to electromagnetic source Distance signal...

Page 17: ...o Addressing Mode Default ON Factory Test Mode POSITION 2 MODE OFF Normal Mode default ON Factory Self Checking Mode POSITION 3 NOT USED POSITION 4 INDOOR UNIT IDENTIFICATION OFF Standard Indoor Unit...

Page 18: ...ht to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 20 40VMU001 02 Printed in U S A Form 40VMU 2SI Pg 18 02 20 Replaces 40VMU...

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