Carrier 40VMW005 User manual
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No.20-40VMW005-030-01 Printed in U.S.A. Form 40VMW-6SI Pg 1 2-20 Replaces: 40VMW-5SI
Installation and Maintenance Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 1 — Unpack and Inspect Units . . . . . . . . . . . . 5
Step 2 — Position the Unit . . . . . . . . . . . . . . . . . . . . 5
Step 3 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . 5
Step 4 — Connect Piping . . . . . . . . . . . . . . . . . . . . . . 6
Step 5 — Complete Electrical Connections . . . . . . 7
Step 6 — Position and Connect Controller . . . . . . 9
ACB (Auxiliary Control Board) Interface . . . . . . . 13
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pre-Start Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System Operation Check . . . . . . . . . . . . . . . . . . . . 13
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
INDOOR UNIT ADDRESSING. . . . . . . . . . . . . . . . . 13
Wireless Remote Controller (40VM900001) . . . . . 13
Non-Programmable Controller (40VM900002). . . 14
Programmable Controller (40VM900003). . . . . . . 14
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 16
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 17
APPENDIX A — DIP SWITCH SETTINGS . . . . . . . . . 18
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock,
or other conditions that may cause death, personal injury or
property damage. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this
product.
Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing
operations. Have fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. Consult local
building codes and the current editions of the National
Electrical Code (NEC) ANSI/NFPA (American National
Standards Institute/National Fire Protection Association) 70. In
Canada, refer to the current editions of the Canadian Electrical
Code CSA (Canadian Standards Association) C22.1.
Understand the signal words — DANGER, WARNING, and
CAUTION. DANGER identifies the most serious hazards,
which will 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 injury or product and property
damage.
Recognize safety information. This is the safety-alert
symbol ( ). When this symbol is displayed on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all
disconnect locations to alert others not to restore power
until work is completed.
WARNING
When installing the equipment in a small space, provide
adequate measures to avoid refrigerant concentration
exceeding safety limits due to refrigerant leak. In case of
refrigerant leak during installation, ventilate the space
immediately. Failure to follow this procedure may lead to
personal injury.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and
goggles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from
system using both high-pressure and low-pressure
ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated.
Refrigerant in contact with an open flame produces
toxic gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when
necessary. Oil can ignite when exposed to torch
flame.
Failure to follow these procedures may result in personal
injury or death.
40VMW005-030
High Wall Indoor Unit for
Variable Refrigerant Flow (VRF) Systems
2
GENERAL
The 40VMW high wall mount unit provides an efficient way to
heat or cool a space and an attractive appearance. The
equipment is initially protected under manufacturer’s standard
warranty; however, 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 1 lists physical data for each unit size. See Fig. 1 for
model number nomenclature. Figures 2 and 3 show unit
dimensions. Table 2 shows components that may or may not be
used for a particular installation.
Table 1 — 40VMW 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 40VMW 005 007 009 012 015 018 024 030
POWER SUPPLY (V-Ph-Hz) 208/230-1-60
TOTAL COOLING CAPACITY (Btuh) 5,000 7,500 9,500 12,000 15,000 18,000 24,000 30,000
SENSIBLE COOLING CAPACITY (Btuh) 4,060 5,640 6,520 7,930 10,140 12,040 15,330 18,950
HEATING CAPACITY (Btuh) 6,000 8,500 10,900 13,500 17,000 21,000 27,000 34,000
INDOOR FAN MOTOR
Type DC Motor
Input (W) 11 25 25 30 35 45 75 85
INDOOR COIL
Number of Rows 2
Fin Spacing (fins/in.) 17 20
Fin Type Hydrophilic Aluminum
Tube Diameter, OD (in.) 0.276
Tube Type Inner Groove
Number of Circuits 3 4 5
INDOOR AIRFLOW (cfm)
Low 245 245 250 380 440 460 480
Medium 245 270 280 420 470 530 600
High 245 320 360 480 560 650 770
INDOOR NOISE LEVEL (dBA)
Low 31.7 31.2 31.8 32.8 38.4 38.9 36.8 38.1
Medium 31.7 32.2 32.6 34.6 39.6 40.2 42.0 43.6
High 31.7 34.0 34.5 36.4 41.7 41.8 43.2 48.3
UNIT
Unit Dimensions W x H x D (in.) 36 x 11-3/8 x 9 42-1/4 x 12-3/8 x 9 47 x 13-1/2 x 10-1/8
Packing Dimensions W x H x D (in.) 40-1/8 x 15-3/8 x 12-3/8 46-1/2 x 17-1/8 x 12-7/8 50-3/4 x 15-1/8 x 18-1/8
Net/Gross Weight (lb) 28/35 32/40.5 38/50.5
REFRIGERANT TYPE R-410A
EXPANSION DEVICE EEV
DESIGN PRESSURE, H/L (psig) 580/320
REFRIGERANT PIPING (in.)
Liquid Side, OD 1/43/8
Suction Side, OD 1/25/8
CONNECTING WIRING
Power Wiring Sized per NEC and Local Codes Based on Nameplate Electrical Data
Signal Wiring 2-Core Stranded Shielded Cable 18 AWG
DRAINAGE WATER PIPE DIAMETER, OD (in.) 3/4 NPT
LEGEND
AWG — American Wire Gage
EEV — Electronic Expansion Valve
NEC — National Electrical Code
3
Fig. 1 —Model Number Nomenclature
Table 2 — Components Shipped With Unit
NAME SHAPE QUANTITY FUNCTION
Screw ST3.9x25 for installation board 8 Secure the mounting plate
Plastic screw anchor 8 Anchoring screw
Wrapping tape 1 For routing condensate from right to left
Condensate connection 1 For connecting drain
Sleeve cap 1 Exterior wall opening
Piping sleeve 1 Routing refrigerant pipes
Copper nut 1 Connect piping
Flexible conduit and connectors 1 Routing power lines
PQE connection wire 2 To connect outdoor unit, indoor unit, and sub MDC
Connecting wire 1 For occupancy sensor
No Beep Harness 1 Prevent beeping noise
LEGEND
MDC —Multiport Distribution Controller
40 VM W 005 --- 3
Product Type
Equipment Type
40—Indoor Unit
VM — VRF
Blank
Voltage (V-Ph-Hz)
3— 208/230-1-60
Model Type
Capacity (Btuh)
007
— 7,000
009 — 9,000
W— High Wall
005
— 5,000
012 — 12,000
015 — 15,000
018 — 18,000
024 — 24,000
030 — 30,000
LEGEND
VRF —Variable Refrigerant Flow
4
NOTE: All dimensions shown in inches.
Fig. 2 —40VMW005-018 Dimensions
Fig. 3 —40VMW024, 030 Dimensions
40VMW UNIT SIZE DIMENSION
A B C D
005-012 36 11 3/89 28 3/4
015-018 42 1/412 3/89 35 1/8
40VMW UNIT SIZE DIMENSION
A B C D
024, 030 47 13 1/210 1/842 3/8
C
D
A
B
D
A
B
C
5
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. Unit should always be stored in a dry place, and in the
proper orientation as marked on the carton.
After determining the condition of carton exterior, carefully
remove each unit from the 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. In the event 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 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.
The unit must always be properly supported. Temporary
supports used during installation or service must be adequate to
hold the 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
and debris from being deposited on motor, fan wheels, and
coils. Failure to do so may have serious adverse effects on unit
operation, and in the case of motor and blower assembly, may
result in immediate or premature failure. Failure of any unit
caused by deposits of foreign material on the motor or blower
wheels will not be covered by the 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
Select the unit position with the following points in mind:
• The unit should be installed on wall studs that are strong
enough to support the total weight of the unit, refrigerant
piping, and condensate.
• The unit should be mounted eight feet or more from the
floor, and if possible, centrally located on the wall from
both ends.
• Proper clearance should be provided on the side and top
as shown in Fig. 4.
Fig. 4 —Required Clearances
• The unit should not be positioned directly above any
obstruction.
• The unit must be installed square and level.
• The condensate drain should have sufficient downward
slope in the condensate flow direction.
Step 3 — Mount the Unit
CAUTION
To avoid equipment damage, do not lift unit by the drain
pipe or refrigerant piping. 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.
CAUTION
When determining the unit mounting location, make sure
that there are no water, plumbing, or electrical lines
running through the wall. Failure to follow this instruction
may result in property damage.
6 in. MIN.
5 in.
MIN.
5 in.
MIN.
6
1. Detach the mounting plate from the unit.
2. Place mounting plate on wall where unit will be installed
and mark the mounting holes. See Fig. 5. Be sure the
mounting hole marks are positioned over the wall studs.
NOTE: All dimensions in inches.
Fig. 5 —Mounting Plate
3. Mark the condensate and refrigerant piping route. If
necessary, cut a hole in the wall to route the piping.
4. Secure the mounting plate with screws that can support
the weight of the unit. For nominal weight of the unit, see
Table 1.
5. Make sure mounting plate is level and flush with the wall.
6. Secure the unit in position by lifting the unit over the
mounting plate. Make sure the hook on the mounting
plate aligns with the slot on the back of the unit. To ensure
proper fit, slide the unit sideways. If the unit is locked in
the correct position, it should not move.
Step 4 — Connect Piping
GENERAL —
1. For condensate and refrigerant piping, lift the unit from
the bottom making sure the unit is still attached to the
mounting plate at the top. See Fig. 6.
2. Introduce temporary cushioning material to maintain the
space needed to connect the piping and to avoid damage
to the unit and wall. See Fig. 6.
Fig. 6 —Piping Connection
3. When the piping connections are completed, remove the
cushioning material and make sure the unit is flush with
the wall.
CONDENSATE PIPING — The unit is supplied with a
3/4-in OD drain connection to connect copper or PVC drain
piping. When installing condensate piping, follow these
recommendations:
• Condensate drain should slope downward in the
direction of condensate flow.
• DO NOT install any U bends or dump condensate
line in a sump filled with water. See Fig. 7.
Fig. 7 — Condensate Piping, Poor Installation
• When multiple units are connected to a common
condensate drain, ensure that drain is large enough
to accommodate the volume of condensate from all
units. It is also recommended to have an air vent in
the condensate piping to prevent any air locks.
• Condensate piping must not be installed where it
may be exposed to freezing temperatures.
• Condensate piping can be routed in one of the four
directions shown in Fig. 8.
Fig. 8 — Condensate Pipe Routes
• While routing the condensate from right to left,
behind the unit, make sure all the piping is wrapped
and placed in the piping chase as shown in Fig. 9.
18-1/4
2-1/4
28
MOUNTING
PLATE
UNIT SIZES 005-012
31-3/8
28-3/4
2-5/8
MOUNTING
PLATE
UNIT SIZE 024-030
1222
2-1/10
13-1/2
47
MOUNTING
PLATE
UNIT SIZES 015-018
CUSHIONING
MATERIAL
HOOK
LEFT PIPING
LEFT BACK PIPING
RIGHT BACK PIPING RIGHT PIPING
Cable
pipe
Refrigerant
Pipe chase
Wrapping tape
Indoor unit
.
.
...
.
.
.
..
..
.
..
.
.
...
..
.
.
.
.
.
.
.
.
. .
Condensate pipe
Fig. 9 —Condensate Pipe Ordering
7
REFRIGERANT PIPING —
When connecting from an indoor unit to an outdoor unit,
follow these procedures:
• Check maximum height drop and length of refrigerant
piping between the indoor and outdoor unit. If the
difference between them is more than 33 feet, consider
mounting the outdoor unit above indoor unit.
• Refrigerant piping connection between indoor and
outdoor units should be performed once the units are
secured at their respective installation locations.
• The refrigeration piping starts at the indoor unit and ends
at the outdoor unit.
• There should be less than 15 bends in the refrigeration
piping.
• The refrigerant piping should be dry and free of dust and
other impurities.
• The bending angle of the refrigerant pipe should not
exceed 90 and the bending radius should be as large as
possible to prevent any breakage in piping.
• Use proper cutting and flaring tools to avoid leakage.
• Use a torque wrench for flare nuts. Refer to Table 3 for
flare nut torque recommendations.
Table 3 — Flare Nut Torque Recommendations
• Before insulating the suction and liquid refrigeration
pipes, perform pressure and leak tests. For details, see
the outdoor unit installation manual. Insulating both
suction and liquid refrigerant pipes is recommended.
• Vacuuming and charging of the system should 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 and
with National Electric Code ANSI/NFPA 70, latest editions.
Units must be electrically grounded in conformance with the
code. In Canada, wiring must comply with CSA C22.1,
Electrical Code.
This equipment in its standard form is designed for an
electrical supply of 208/230-1-60. Any damage to or failure of
units caused by incorrect wiring or voltage is not covered by
warranty.
Electric wiring must be sized to carry the full load amp draw of
the motor, starter, and any other controls that are used with the
unit. Refer to Table 4 for electrical data.
Table 4 — 40VMW Electrical Data
After the pipe work is complete, the electrical supply can be
connected by routing the cable through the appropriate casing
holes or knockouts and connecting the supply and ground
cables to the unit’s power terminal.
Be sure the power wiring and control wiring do not cross, as
this might cause disturbance on the controls side. See Fig. 10
for wiring diagram.
CAUTION
When connecting from an indoor unit to an outdoor unit,
the isolation valve at the outdoor unit should be in closed
position throughout the refrigerant piping process. Failure
to follow this procedure may result in equipment damage.
OUTSIDE DIAMETER (in.) RECOMMENDED TORQUE (ft-lb)
1/4 15
3/8 26
1/2 41
5/8 48
WARNING
Electrical shock can cause personal injury and death.
Disconnect the power supply before making wiring
connections. There may be more than one disconnect
switch. Tag all disconnect locations to alert others not to
restore power until work is completed.
WARNING
All units must be wired strictly in accordance with the
wiring diagram furnished with the unit. Any wiring
different from the wiring diagram could result in personal
injury and property damage.
CAUTION
Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature
rating of at least 105C.
Ensure supply voltage to the unit, as indicated on the serial
plate, is not more than 10% over the rated voltage or 10%
under the rated voltage.
Failure to follow these recommendations may result in
equipment damage.
UNIT POWER SUPPLY
MCA MOPD
40VMW005 0.29 15
40VMW007 0.45 15
40VMW009 0.45 15
40VMW012 0.45 15
40VMW015 0.45 15
40VMW018 0.45 15
40VMW024 0.86 15
40VMW030 0.86 15
LEGEND
MCA — Minimum Circuit
Amps
MOPD — Maximum Overcurrent
Protective Device
8
POWER AND CONTROL WIRING —
1. Lift up the front panel and look for the control box cover
as shown in Fig. 11.
Fig. 11 —Accessing Control Box Cover
2. Remove the control box cover plate and look for the
power and control wire holders to route the wires to the
proper terminals as shown in Fig. 12.
Fig. 12 —Removing Control Box Cover
LEGEND
ACB — Auxiliary Control Board
ALARM — Warning Lamp (Optional)
CS — Condensate Switch (Optional)
EEV — Electronic Expansion Valve
FM — Indoor Fan Motor
GM — Swing Motor
MDC — Multiport Distribution Controller
PUMP — Pump Motor (Optional)
T1 — Room Temp. Sensor
T2A — Inlet Pipe Temp. Sensor
T2B — Outlet Pipe Temp. Sensor
XP1-4/XS1-6 — Connectors
XT1 — Terminal
SW8
ENC1
POWER_S
CN15
XT1
RED
BLUE
TMC
EEV
To Wired Controller Bus
ON/OFF
SWITCH
T2B
T1
T2A
Display board
main control Board
CN1 CN6 CN5
CN2 CN16
Y/G
GM
XS4
XP4 XS3 XP3
WHITE
XS2
CN18
CN24
CN8
ENC2
CN7 CN14CN54
CN3
GM
CN53 CN4 CN10 CN30 CN19
XS1 XP1
RED
HA
HB
ABC interface
To outdoor / indoor
MDC comm. bus
CN1
CN3
CN2
AUXH
HTON
CTON
FAN
L1 L2
XS5
XS6
BLUE
P
Q
P
Q
POWER IN
Occupancy sensor/
ON-OFF (Dry contact)
XS4 XP4
Fig. 10 — 40VMW005-030 Typical Wiring Diagram
9
Step 6 — Position and Connect Controller
NOTE: Controllers are ordered separately.
Wired controllers should be installed in a position that
maintains good temperature control:
• Position the thermostat approximately 48 inches above
floor level.
• Do not position thermostat where it can be directly
affected by the unit’s discharge airstream.
• Avoid external walls and drafts from window and doors.
• Avoid positioning near shelves and curtains as these
restrict air movement.
• Avoid heat sources such as direct sunlight, heaters,
dimmer switches, and other electrical devices.
See Fig. 13 and Fig. 14.
CONTROL WIRING —
1. The communication wire should be 2-core stranded
shielded wire.
2. For indoor and outdoor unit communication, use P, Q
terminals. Shielded core should be used for ground.
3. Wiring should be done according to wiring diagram.
4. Communication wire must not form a closed loop.
5. Use separate conduit for power and control wiring.
Fig. 13 —Communication Wire Connection
OPTION/EXTENSIONS OF COMMUNICATION
WIRING — To extend control wiring or make terminal
connections, use the PQE connection wire supplied in the
accessory kit and follow the steps below.
1. Cut the connector on the outdoor unit side as shown in
Fig. 15.
Fig. 15 —Shearing Outdoor Connector
2. Strip a suitable length of the insulation layer as shown in
Fig. 16.
Fig. 16 —Stripping the Wire
3. Use a suitable screwdriver to fix the communication wire
on the outdoor unit communication terminal as shown in
Fig. 17.
Fig. 17 —Connecting Communication Wire to
Outdoor Unit Communication Terminal
If communication wires are used to connect between indoor
units, find the corresponding port and plug it in directly as
shown in Fig. 18.
Fig. 18 —Connecting the Communication Wires
If it is not possible to buy communication wires from Carrier,
connect the indoor unit side of the communication wires using
the connector provided with the accessories as shown in Figs.
19-21.
P Q
P Q
P Q
To outdoor / indoor/
MDC unit comm.bus
Fig. 14 — ACB Interface Wiring
LEGEND
ACB — Auxiliary Control Board
CN2
ACB interface
HA HB
To wired controller
comm.bus
CN1
HA HB
10
CAUTION
Failure to follow these procedures may result in personal
injury or damage to equipment.
NEVER CONNECT the main power source to the control
or communication terminal block.
USE AN APPROPRIATE SCREWDRIVER for
tightening the terminal screws. Do not over tighten the
terminal screws.
IMPORTANT: Wiring for communication shall be two
inches or more apart from power source wiring to avoid elec-
tric noise. Do not insert control/communication and power
source wire in the same conduit.
IMPORTANT: Pay attention to the polarity of the commu-
nication wire.
Connector in accessory kitConnector on indoor unit Communication cable
in field
Fig. 19 — Connecting the Communication Cable to Indoor Unit to Outdoor Unit Using the Supplied Connector
11
P Q X Y
X Y
Main MDC
MDC
outdoor unit Centralized controller
HA HB
P Q
P Q
P Q
P Q
P Q
P Q
wired controller
HA HB
To No.1
indoor
To No.2
indoor
To No.3
indoor
To No.4
indoor
To No.1
indoor
To No.2
indoor
To outdoor
To Sub.MDC
To outdoor
Indoor unit 1#
L1
L2
L3
L3
L3
L3
L4
L4
L5
L6
L7
L8
L9
L10
L11
Indoor unit 2#
Indoor unit 3#
Indoor unit 4#
Indoor unit 5#
Indoor unit 6#
Touch screen
wired controller
Note: 24v DC Power
Note: Power from IDU
Maximum wiring length
L1+L2 < 3937 ft. 18 AWG, 2-Core Stranded Shield
L3 < 3937 ft. 18 AWG, 2-Core Stranded Shield
L4 < 3937 ft. 18 AWG, 2-Core Stranded Shield
L5 < 3937 ft. 18 AWG, 2-Core Stranded Shield
L6+L7+L8+L9 < 820 ft. 18 AWG, 2-Core Stranded Shield
L10+L11 < 820 ft. 18 AWG, 2-Core Stranded Shield
HA HB HA HB HA HB HA HB HA HB HA HB
LEGEND
AWG —American Wire Gage
IDU —Indoor Unit
MDC —Multiport Distribution Controller
Fig. 20 — Typical Communication Wiring of Heat Recovery System
12
Fig. 21 —Typical Communication Wiring of Heat Pump System
P Q X Y
X Y
Centralized controller
HA HB
P Q
P Q
P Q
P Q
P Q
P Q
wired controller
HA HB
L1
L3
L5
L6
L7
L8
L9
L10
L11
L3
L3
L3
L3
Outdoor unit
Indoor unit 5#
Indoor unit 6#
Indoor unit 3#
Indoor unit 4#
Indoor unit 2#
Indoor unit 1#
P
Q
Note: Power from IDU
Maximum wiring length
L1+L3 < 3937 ft. 18 AWG, 2-Core Stranded Shield
L5< 3937 ft. 18 AWG, 2-Core Stranded Shield
L6+L7+L8+L9< 820 ft. 18 AWG, 2-Core Stranded Shield
L10+L11 < 820 ft. 18 AWG, 2-Core Stranded Shield
Note: 24v DC Power
Touch screen
wired controller
HA HB HA HB HA HB HA HB HA HB HA HB
Network
Resistor
NOTE: Network resistor is shipped with the outdoor unit for
installation on heat pump systems.
LEGEND
AWG —America Wire Gage
IDU —Indoor Unit
13
ACB (Auxiliary Control Board) Interface — The
ACB interface is a dry contact board that can output up to four
signals controlling devices. Refer to Fig. 22 for connecting
devices to the ACB interface board.
Fig. 22 —ACB Interface
START-UP
Pre-Start Check — Once installation is complete, make
the following pre-start checks:
1. All indoor and outdoor units are properly installed.
2. All piping and insulation is complete.
3. All electrical connections (both power and control) are
properly terminated.
4. All condensate drains are installed correctly.
5. The power supply is of the right voltage and frequency.
6. The units are properly grounded in accordance with
current electrical codes.
7. Suction and liquid line service valves are in open
position.
System Operation Check — Once the installation
and pre-start checks are completed, follow these steps:
1. Using remote controller, select cooling or heating mode
to check the operation of the system.
2. While the system is in operation, check the following on
the indoor unit:
a. Switches or buttons on the remote controller are easy to
push.
b. Indicator light is showing normal operation and no
error is indicated.
c. Swing mode of air louvers is working (if applicable to
unit).
d. Drain pump operation is normal (if applicable).
e. No abnormal vibration or noise is noticed.
3. While the system is in operation, check the following on
outdoor unit:
a. No abnormal vibration or noise is noticed.
b. Condenser fan is in operation.
c. Indicator light is showing normal operation and no
error is indicated.
NOTE: If the unit is turned off or restarted, there is a time delay
of three minutes for the compressor to start from the time the
power is restored.
MAINTENANCE
Every 3 Months:
• Check the air filter condition. Clean or replace if
necessary.
Every 6 Months:
Follow 3-month 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 connections are secure.
• Check condensate pump operation.
• Check the heating and cooling action to confirm proper
operation.
INDOOR UNIT ADDRESSING
For proper system operation, each indoor unit must have a
unique address set from 0 to 63. When setting an address by
remote controller; the outdoor units, indoor units, and MDC
must be powered on. If FE is displayed on the LED screen or
display board, this unit has no address. After setting all indoor
unit addresses, turn off the power supply to all indoor units to
clear errors.
Indoor unit addressing can be distributed automatically in the
heat pump system. When dip switch S6 on the outdoor unit’s
main PCB board is set to 00 (default set in factory), indoor
units are set for auto-addressing. When powering on for the
first time, it takes six minutes or more to finish auto-addressing
each indoor unit. The heat recovery system cannot accomplish
this function at this time.
Wireless Remote Controller (40VM900001) —
Indoor unit addressing can be performed using wireless remote
controller. When using wireless controller, user must maintain
a line of sight with the receiver on indoor unit. See Fig. 23 for a
description of the buttons on the wireless remote.
LEGEND
ACB —Auxiliary control board
AUXH —Output for auxiliary heat
CTON —Output for cooling operation
FAN —Output for fan operation
HTON —Output for heating operation
ACB interface
CN3
NC1
AUXH HTON CTON FAN
( current range: 0-1A)
( voltage range: 0-24V AC/DC)
Example:
Humidifier
Auxiliary Heat
Example: Example:
Economizer
Example:
Damper Exhaust
New Fan
Alternative Heat
CN2
CAUTION
When servicing or repairing this unit, use only factory-
approved service replacement parts. Refer to the rating
plate on the unit for complete unit model number, serial
number, and company address. Any substitution of parts or
controls not approved by the factory will be at the owner’s
risk and may result in equipment damage.
CAUTION
To avoid equipment damage, do not attempt to reuse any
mechanical or electrical controllers that have been wet.
Replace defective controller.
MAX AMPS - 1A
MAX VOLTAGE - 24V
14
Fig. 23 —Wireless Remote Controller
(40VM900001)
Use a tool to press and hold the LOCK button for at least ten
seconds, and press to activate. Click or to select an
address and press to send the setting.
To display an indoor unit address, use a tool to press and hold
the LOCK button for at least ten seconds, and press
to query the addresses.
Non-Programmable Controller —
When setting an address, connect only one wired controller to
an indoor unit.
Press ROOM TEMP and SWING simultaneously for three
seconds. If there is no address for this indoor unit, the display
shows FE# 00. See Fig. 24. 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. 25. Press OK to confirm and
exit the setting interface.
Fig. 25 —Non-Programmable Controller Setting
IDU Address
Programmable Controller —
When setting an address, connect only one wired controller to
an indoor unit.
1. Press FAN and BACK simultaneously for five seconds to
access parameter settings as shown in Fig. 26.
Fig. 26 —Programmable Controller IDU
Addressing Menu
2. Press TEMP.UP or TEMP.DOWN to move the cursor
down, choose IDU ADDRESSING and MENU/OK to
enter this setting.
RESET
TIMER ON
TIMER OFF
SWING
AIR DIRECTION
CLOCK
OK
SWING
MODE FAN
AUTO
COOL
DRY
HEAT
FAN
TEMP
SET
CLOCK
SET
HOUR
FAN SPEED
LOCK
C/H
6 – AIR DIRECTION
4 – ADJUST UP
2 – FAN SPEED SETTING
9 – CLOCK SETTING
14 – OK (CONFIRM)
10 – TIMER ON
11 – TIMER OFF
1 – MODE SETTING
3 – ADJUST DOWN
12 – RESET
13 – LOCK
15 – COOL/HEAT
5 – ON/OFF
7 – AIR VERT. SWING
8 – AIR HORIZ. SWING
34
MODE
FAN TEMP. DOWN
OK
TEMP. UP ON/OFF
TIMER
ROOM TEMP. SWING
#
Fig. 24 — Non-Programmable Controller IDU
Addressing Menu
16
TROUBLESHOOTING
Figure 28 shows the display panels for 40VMW005-018 and 40VMW024-30 units. See Table 5 for a summary of display indicators.
Table 6 lists problems, possible causes, and possible solutions.
Fig. 28 —40VMW Display Panel
Table 5 — Display Indicators
TYPE DIGITAL DISPLAY MODE/STATUS
[NO ERROR]
Setting Temperature Starting
“--” Shutdown
“--” Standby
“--” Timing ON
“--” Timing OFF
Setting Temperature System Defrost ON
Setting Temperature System Defrost OFF
Room Temperature Only Fan
ERROR
dd Heating / Cooling 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 Sensor (T2A)
E6 Check DC Fan
E7 EEPROM Error (Data Storage)
E9 Communication Error Between Indoor Unit and Wired Controller.
Eb EEV Error
Ed Outdoor Unit Error
EE Condensate Overflow
FE No Address When Powered ON For First Time
UU MDC In Auto System-Check Mode.
LEGEND
ACB — Auxiliary Control Board
EEPROM — Electronically Erasable Programmable Read-only Memory
EEV — Electronic Expansion Valve
MDC — Multi-port Distribution Controller
40VMW005-018
LEGEND
DEF. — Defrost
40VMW024-030
17
Table 6 — Troubleshooting
Replacement Parts — Quote the unit model number
and unit serial number when ordering replacement parts or
contacting the factory about the unit. This information can be
found on the serial plate attached to the unit. See Fig. 29.
DIGITAL DISPLAY DESCRIPTION POSSIBLE CAUSES POSSIBLE SOLUTIONS
dd Heating/Cooling Mode Conflict
System is in cooling or fan mode only and
heating signal is received from a unit in
the system.
All units should be in cooling mode for system to stay
in cooling mode.
System is in heating mode and cooling
signal is received from a unit in the
system.
All units should be in heating mode.
E1 Communication Error Between Indoor
and Outdoor Unit
Signal wires are short-circuited or
disconnected.
Check or reconnect signal wire.
Signal wires close to electromagnetic
source.
Distance signal wires from electromagnetic source.
PC board fault. Replace PC board.
E2, E4, E5 Check Temperature Sensor
Loose connection at port on PC board. Tighten the connection at port on PC board.
Sensor is short-circuited. Using multi-meter, measure resistance of the sensor.
If the resistance is ≤ 100 ohms, change the sensor.
PC board fault. Replace PC board.
E6 Check DC Fan Motor
Operating beyond limits. Check and correct external static pressure on the
unit.
DC motor fault. Replace DC motor.
PC board fault. Replace PC board.
E7 EEPROM Error (Data Storage) Chip or PC board fault. Replace PC board.
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 wires from electromagnetic source.
PC board fault. Replace PC board.
Eb EEV Error
EEV wires are short-circuited or
disconnected.
Check or reconnect signal wire.
EEV stop. Replace EEV.
PC board fault. Replace PC board.
Ed Outdoor Unit Error Outdoor unit fault. Refer to outdoor unit troubleshooting guide.
EE Condensate Overflow
Loose connection or disconnected at port
on PC board.
Tighten the connection or reconnect at port on PC
board.
Condensate switch float is stuck. Inspect the float.
Trap slope is too steep. Adjust the trap slope.
Drain pipe is too long. Adjust the length of the drain pipe.
Drain pump faulty. Replace the drain pump.
FE No Address When Powered ON For
First Time Indoor unit without address.
Run automatic addressing option at the outdoor unit.
Use remote wireless or wired controller to readdress
the indoor unit.
UU MDC In Auto System-Check Mode MDC Fault. Refer to MDC troubleshooting guide.
LEGEND
EEPROM —Electronically Erasable Programmable Read-only Memory
EEV —Electronic Expansion Valve
MDC —Multiport Distribution Controller
PC —Process Controller
Fig. 29 — Unit Serial Plate (Example)
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No.20-40VMW005-030-01 Printed in U.S.A. Form 40VMW-6SI Pg 18 2-20 Replaces: 40VMW-5SI
© Carrier Corporation 2020
APPENDIX A — DIP DWITCH SETTINGS
There are two DIP switches on the main board. Figures A and B show the settings for each parameter controlled by a switch. Switches are
shown in the default settings.
POSITION 1 — START-UP
POSITION 2
POSITION 3 — NOT USED
POSITION 4 — INDOOR UNIT IDENTIFICATION
Fig. A — SW1 SETTINGS
POSITION 1, 2 — NOT USED
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 Only)
(IDU address must be 63)
ON
OFF
1234
a40-1923
POSITION 1 — START-UP
ON
OFF
1234
a40-1923
ON
OFF
1234
ON
OFF
1234
a40-1923
ON
OFF
12
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