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GENERAL

The 40VMU under ceiling/floor unit can be installed ex-

posed 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 manufactur-

er’s standard warranty; however, the warranty is provided un-
der the condition that the steps outlined in this manual for ini-
tial inspection, proper installation, regular periodic mainte-
nance, 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 1  lists physical data for each unit size. See Fig. 1 for

the model number nomenclature. Figures 2 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

                        LEGEND

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 proce-
dures may result in damage to equipment. For information
about replacement oil type and viscosity, see the Installa-
tion, 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 (AWG)

Power Wiring

Sized per NEC and Local Codes Based on Nameplate Electrical Data

Signal Wiring

2-Core Stranded Shielded Twisted Pair Cable 20 AWG-16 AWG

DRAINAGE WATER PIPE DIAMETER, OD (in.)

5

/

8

AWG

American Wire Gage

EEV

Electronic Expansion Valve

NEC

National Electrical Code

Summary of Contents for 40VMU012 Series

Page 1: ...he Canadian Electrical Code CSA Ca nadian Standards Association C22 1 Understand the signal words DANGER WARNING and CAUTION DANGER identifies the most serious hazards which will result in severe pers...

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

Page 3: ...d sub MDC Connecting wire 1 Occupancy sensor connecting wire Gas side copper pipe For 012 024 only 1 For routing refrigerant pipes to the side of the unit Liquid side copper pipe For 012 024 only 1 Ga...

Page 4: ...A B C D Fig 2 40VMU012 030 Dimensions 40VMU UNIT SIZE DIMENSION in A B C D 012 024 39 26 8 19 7 8 030 50 1 2 26 8 31 1 4 66 27 10 42 a40 1857 1 8 Fig 3 40VMU036 048 Dimensions NOTE All dimensions show...

Page 5: ...INSTALLATION To save time and to reduce the possibility of costly errors set up a complete sample installation in a typical room at jobsite Check all critical dimensions such as pipe wire and duct co...

Page 6: ...otrude more than 1 in below the mounting hole on the hanging bracket as shown in Fig 7 3 Remove the side board and grille from the unit as shown in Fig 8 does not apply to unit size 048 4 Slide the un...

Page 7: ...indoor unit Refrigerant piping connection between indoor and out door units should be performed once the units are secured at their respective installation locations The refrigeration piping starts a...

Page 8: ...might cause disturbance on the controls side See Fig 15 for wiring diagram OUTSIDE DIAMETER in RECOMMENDED TORQUE ft lb 1 4 15 3 8 26 1 2 41 5 8 48 40VMU SIZE DIMENSIONS in a b c d 012 2 1 4 2 1 4 4 4...

Page 9: ...Board 1 CN1 CN3 CN18 CN27 CN24 CN11 CN5 CN52 CN54 CN12 CN15 CN9 CN8 CN22 vertical CN2 3 Level CN2 1 vertical EARTH POWER IN U E L B R E D L1 L2 G Y GM GM GM T2B UE L B T2A WHITE T1 T0 D E R Display b...

Page 10: ...ion wiring of the heat pump and heat recovery sys tems Fig 16 Communication Wire Connection To outdoor indoor MDC units comm bus To wired controller comm bus XT2 3 4 3 4 3 4 LEGEND ACB Auxiliary Contr...

Page 11: ...HB Touch screen wired controller NOTE Power from IDU Maximum wiring length L1 L3 3937 ft 16 AWG 2 Core Stranded Shield L5 3937 ft 16 AWG 2 Core Stranded Shield L6 L7 L8 L9 820 ft 16 20 AWG 2 Core Stra...

Page 12: ...1 L Indoor unit 1 Indoor unit 2 HA HB HA HB HA HB HA HB HA HB HA HB Indoor unit 3 Indoor unit 4 Indoor unit 5 Indoor unit 6 Maximum wire length L1 L2 3937 ft 16 AWG 2 Core Stranded Shield L3 3937 ft 1...

Page 13: ...y with suitable cleaning agent Clean the grille and panel if applicable EVERY 12 MONTHS Follow 6 month maintenance schedule In addition Be sure all electrical connections are secure Check condensate p...

Page 14: ...indoor unit the display shows FE 00 see Fig 26 Otherwise the display shows the current address of the indoor unit Click TEMP UP or TEMP DOWN to change 00 to the desired address as shown in Fig 27 The...

Page 15: ...3 Press TEMP UP or TEMP DOWN to choose the ad dress see Fig 29 Press MENU OK to send this address to the IDU 4 Press BACK twice or wait 30 sec to automatically exit the parameter settings menu Fig 28...

Page 16: ...ror 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 DC Fan Motor...

Page 17: ...r Data Storage Chip or PC board fault Replace PC board E9 Communication Error Between Indoor Unit and Controller Signal wires are short circuited or discon nected Check or reconnect signal wires Signa...

Page 18: ...display board The de fault display is Fahrenheit To change from Fahrenheit to Cel sius press the button and hold for 5 seconds ON OFF 1 2 3 4 a40 1923 POSITION 1 START UP OFF Auto Addressing Mode Def...

Page 19: ......

Page 20: ...right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53400035 01 Printed in U S A Form 40VMU 1SI Pg 20 8 16 Replaces New...

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