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6

INSTALLATION
Step 1 — Unpack and Inspect Units — 

Units  are

packaged for shipment to avoid damage during normal transit

and handling. It is the receiving party’s responsibility to inspect

the equipment upon arrival. Any obvious damage to the carton

and/or its contents should be reported on the bill of lading and a

claim should be filed with the transportation company and the

factory. The unit should always be stored in a dry place and in

the proper orientation as marked on the carton.

After determining the condition of the carton exterior, carefully

remove each unit from carton and inspect for hidden damage.

Check  to  make  sure  that  items  such  as  thermostats  and

controllers are accounted for whether packaged separately or

shipped at a later date. Any hidden damage should be recorded,

a claim should be filed with the transportation company, and

the factory should be notified. If a claim for shipping damage is

filed, the unit, shipping carton, and all packing must be retained

for physical inspection by the transportation company. All units

should be stored in the factory shipping carton with internal

packaging in place until installation.

PROTECTING UNITS FROM DAMAGE — Do  not  apply

force or pressure to the coil, piping, or drain stub-outs during

handling. All units should be handled by the chassis or as close

as possible to the unit mounting point locations. 

Unit must always be properly supported. Temporary supports

used during installation or service must be adequate to hold

unit  securely.  To  maintain  warranty,  protect  units  against

hostile  environments  (such  as  rain,  snow,  or  extreme

temperature),  theft,  vandalism,  and  debris  on  jobsite.

Equipment covered in this manual is not suitable for outdoor

installations. Do not allow foreign material to fall into drain

pan. Prevent dust/debris from being deposited on motor, fan

wheels, and coils. Failure to do so may have serious adverse

effects  on  unit  operation,  and  in  case  of  motor  and  blower

assembly, this may result in immediate or premature failure.

Failure of any unit caused by deposits of foreign material on

motor or blower wheels will not be covered by manufacturer’s

warranty. Some units and/or job conditions may require some

form of temporary covering during construction.

PREPARING JOBSITE  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 jobsite.

Check  all  critical  dimensions  such  as  pipe,  wire,  and  duct

connections requirements. Refer to job drawings and product

dimension  drawings  as  required.  Instruct  all  trades  in  their

parts of the installation. Units must be installed in compliance

with all applicable local code requirements.

IDENTIFYING AND PREPARING UNITS —  Be sure 

power requirements match available power source. Refer to 

unit nameplate and wiring diagram. In addition:
• Check all tags on unit to determine if shipping screws are

to be removed. Remove screws as directed.

• Rotate  fan  wheel  by  hand  to  ensure  that  fan  is

unrestricted  and  can  rotate  freely.  Check  for  shipping

damage  and  fan  obstructions. Adjust  blower  motor  as

required. 

Step 2 — Position the Unit

Install unit in a location that meets the following requirements:
• Allow adequate space for installation, service clearance,

piping  and  electrical  connections,  and  necessary

ductwork. For specific unit dimensions, refer to Table 1

and  Fig.  2.  Allow  clearance  according  to  local  and

national codes.

• Confirm that the ceiling is able to support the weight of

the unit. See Table for nominal weight.

• There should be enough room within the false ceiling for

installation and maintenance. See Fig. 3 below.

• The false ceiling should be horizontal and leveled.
• Install the unit in a location within the room that allows

uniform air flow in all directions.

Fig. 3 —False Ceiling Installation

Select the unit position with the following points in mind:
• The unit should be installed in a position that is suitable

to support the total weight of the unit, refrigerant piping,

and condensate.

• Proper  access  should  be  provided  for  maintenance  for

refrigerant  piping,  EEV  (electronic  expansion  valve),

electrical box, and condensate pump. A 2-ft clearance is

recommended all around the unit. 

• The  unit  should  be  at  least  3-

1

/

4

  feet  from  a  wall  or

similar obstruction. See Fig. 4 below.

CAUTION

To avoid equipment damage, do not lift unit by the drain

pipe or refrigerant piping. The unit should be lifted using

the mounting brackets.

DANGER

Units must not be installed where they may be exposed to

potentially  explosive  or  flammable  atmosphere.  If  this

instruction is not followed exactly, a fire or explosion may

result, causing property damage, injury, or loss of life.

40VMF UNIT SIZE

DIMENSION (in.)

A

H

009-015

9

10-

1

/

4

018-048

11-

3

/

4

13

>8-1/4 ft.

Connect to the outlet 
of 

drainage pipe

Connection port of 

(Gas side)

   refrigerant pipe

(Liquid side)

Connection port 
of refrigerant pipe

Floor

Ceiling

Panel

Air outlet

Air inlet

2-7/8 ft. (Ceiling hole)

Air outlet

Summary of Contents for 40VMF

Page 1: ...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 injury or p...

Page 2: ...2 shows unit dimensions Table 2 shows components that may or may not be used for a particular installation Fig 1 Model Number Nomenclature CAUTION DO NOT re use compressor oil or any oil that has bee...

Page 3: ...Low 32 1 33 0 37 0 40 2 40 2 42 1 47 3 50 5 Medium 34 0 37 3 41 5 43 1 42 5 45 1 50 4 54 0 High 36 7 41 4 45 6 52 5 44 7 49 5 53 9 55 4 UNIT Unit Dimensions W x H x D in 33 1 8 x 9 x 33 1 8 33 1 8 x 1...

Page 4: ...ulation 1 For covering the condensate drain Clamp 1 For connecting the drain Tie rope 5 For insulation Condensate connection 1 For connecting drain PQE connection wire 2 To connect outdoor unit indoor...

Page 5: ...A 048A Dimensions NOTE All dimensions shown in inches 40VMF UNIT SIZE DIMENSION A 009A 9 012A 015A 018A 11 3 4 024A 030A 036A 048A 37 3 8 30 3 4 37 3 8 26 3 4 33 1 8 4 1 8 2 3 4 33 1 8 5 3 4 1 3 4 34...

Page 6: ...ation in a typical room at jobsite Check all critical dimensions such as pipe wire and duct connections requirements Refer to job drawings and product dimension drawings as required Instruct all trade...

Page 7: ...rod For unit weight see Table 3 Fig 7 Mounting Hole Locations Table 3 Unit Weight Includes grille weight MOUNTING UNIT The unit can now be lifted on to the hanging rods for mounting 1 Use rods and fas...

Page 8: ...ing Panel 5 When the panel is secure insert the grille at a 45 angle and latch it in place Step 4 Connect Piping CONDENSATE PIPING The unit is supplied with a 1 1 4 inch OD drain connection to connect...

Page 9: ...ould be carried out as described in the outdoor unit installation manual Step 5 Complete Electrical Connections Installation of wiring must conform to local building codes In absence of local codes wi...

Page 10: ...ACB Auxiliary Control Board AUXH Output For Auxiliary Heat CS Condensate Switch CTON Output for Cooling Operation EEV Electronic Expansion Valve FAN Output for Fan Operation FM Indoor Fan Motor GM Lou...

Page 11: ...Fig 17 below Fig 17 Stripping the Wire 3 Use a suitable screwdriver to fix the communication wire on the outdoor unit communication terminal as shown in Fig 18 below Fig 18 Connecting Communication Wi...

Page 12: ...r unit 2 HA HB Indoor unit 3 HA HB Indoor unit 4 HA HB Indoor unit 5 HA HB Indoor unit 6 HA HB HA HB Touch screen NOTE 24 v DC Power wired controller Field Supplied wired controller HA HB NOTE Power f...

Page 13: ...oor unit 6 HA HB P Q Network Resistor HA HB Touch screen NOTE 24 v DC Power wired controller Field Supplied wired controller HA HB NOTE Power from IDU MAXIMUM WIRING LENGTH L1 L3 3937 ft 18 AWG 2 Core...

Page 14: ...th maintenance schedule In addition Clean condensate tray with suitable cleaning agent Clean the grille and panel EVERY 12 MONTHS Follow 6 month maintenance schedule In addition Be sure all electrical...

Page 15: ...26 Press OK to confirm and exit the setting interface Fig 26 Non Programmable Controller Setting IDU Address Programmable Controller When setting an address connect only one wired controller to an in...

Page 16: ...u want to set See Fig 28 Press MENU OK to send this address to the IDU Fig 28 Programmable Controller Setting IDU Address 4 Press BACK twice or wait 30 seconds to automatically exit the parameter sett...

Page 17: ...ing Mode Conflict Error E1 Communication Error Between Indoor and Outdoor Unit E2 Check Indoor Temperature Sensor T1 E4 Check Evaporator Outlet Temperature Sensor T2B E5 Check Evaporator Temperature S...

Page 18: ...t and Controller Signal wires are short circuited or disconnected Check or reconnect signal wires Signal wires close to electromagnetic source Distance signal wires from electromagnetic source PC boar...

Page 19: ...ETTINGS Fig B SW8 SETTINGS OFF Auto Addressing Mode Default ON Factory Test Mode OFF Normal Mode Default ON Factory Self Checking Mode OFF Standard Indoor Unit Default ON Mode Priority Indoor Unit HP...

Page 20: ...20...

Page 21: ...ht to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 20 40VMF002 01 Printed in U S A Form 40VMF 4SI Pg 21 07 20 Replaces 40VMF...

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