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Installation and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DIMENSIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FAN CURVE CHARACTERISTICS. . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 1 - Unpack and Inspect Units . . . . . . . . . . . 10
Step 2 - Position the Unit . . . . . . . . . . . . . . . . . . 11
Step 3 - Mount the Unit . . . . . . . . . . . . . . . . . . . . . 11
Step 4 - Connect Piping . . . . . . . . . . . . . . . . . . . . . 12
Step 6 - Installing the LED Display Panel . . . . . 16
Step 7 - Position and Connect Controller . . . . . 16
ACB INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . 20
START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Pre-Start Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
System Operation Check. . . . . . . . . . . . . . . . . . . . 20
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fan Assembly Maintenance . . . . . . . . . . . . . . . . . 21
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 29
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
APPENDIX A - DIP SWITCH SETTINGS . . . . . . . . . . 32
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock,
or other conditions; which 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 the 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 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
(
). When this symbol is displayed on unit and in instruc-
tions or manuals, be alert to potential for personal
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No.20-40VMH001-01
Page
symbol
injury.
Printed in U.S.A.
Form 40VMH-2SI
High Static Ducted Indoor Unit for
Variable Refrigerant Flow (VRF) Systems
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.
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.
DO NOT USE TORCH to remove any component. The
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 the
system using both the 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 the component connection tubing with a tubing
cutter and remove the 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.
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.
Pg 1
40VMH024-096
WARNING
WARNING
WARNING
WARNING
2-20
Replaces: 40VMH-1SI
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Summary of Contents for Carrier 40VMH024
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Page 1: Table Of Contents
40VMH024-096 High Static Ducted Indoor Unit for Variable Refrigerant Flow (VRF) Systems Installation and Maintenance Instructions CONTENTS Page WARNING SAFETY CONSIDERATIONS ....1 GENERAL . -
Page 2: General
GENERAL This manual should be fully reviewed in advance before initial installation, start-up, and any maintenance. Contact your local The 40VMH high static ducted indoor fan coil unit offers sales representative or the factory with any questions BEFORE simple operation and long service with proper installation, proceeding. - Page 3 Table 2 — 40VMH Physical Data UNIT 40VMH 208/230-1-60 POWER SUPPLY (V-Ph-Hz) 24,000 30,000 36,000 48,000 53,500 72,000 96,000 COOLING CAPACITY (Btuh) 27,000 34,000 40,000 54,000 60,000 81,000 108,000 HEATING CAPACITY (Btuh) INDOOR FAN MOTOR Type 245*2 395*2 Input (W) INDOOR COIL Number of Rows Fin Spacing (fins/in.)
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Page 4: Dimensions
DRAIN PIPE REFRIGERANT-PIPE FLARED REFRIGERANT-PIPE FLARED AIR OUTLET DUCT FLANGE SAFETY DRAIN CONNECTING PIPE 1-5/16 AIR OUTLET 37-1/2 33-11/16 3-3/8 8-7/16 16-7/8 PLASTIC COVER ELECTRICAL CONTROL 2-9/16 28-7/16 2-9/16 NOTE: All dimensions are shown in inches. Fig. 2 —40VMH024-036 Dimensions... - Page 5 DIMENSIONS (Cont.) NOTE: All dimensions are shown in inches. Fig. 3 —40VMH048 and 054 Dimensions...
- Page 6 DIMENSIONS (Cont.) NOTE: All dimensions are shown in inches. Fig. 4 —40VMH072 and 096...
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Page 7: Fan Curve Characteristics
FAN CURVE CHARACTERISTICS Fig. 6 —Size 030 Fig. 5 —Size 024 Range of Available Airflow Rate in H-Speed Range of Available Airflow Rate in H-Speed Max Point Rating Point Min Point Max Point Rating Point Min Point Speed Speed (in.) (in.) (in.) (in.) - Page 8 Fig. 7 —Size 036 Fig. 8 —Size 048 Range of Available Airflow Rate in H-Speed Range of Available Airflow Rate in H-Speed Max Point Rating Point Min Point Max Point Rating Point Min Point Speed Speed (in.) (in.) (in.) (in.) (in.) (in.) 0.20...
- Page 9 Fig. 9 —Size 054 Fig. 10 —Size 072 Range of Available Airflow Rate in H-Speed Range of Available Airflow Rate in H-Speed Max Point Rating Point Min Point Max Point Rating Point Min Point Speed Speed (in.) (in.) (in.) (in.) (in.) (in.) 0.20...
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Page 10: Installation
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. -
Page 11: Step 2 - Position The Unit
PREPARING JOB SITE FOR UNIT INSTALLATION — To save time and to reduce possible costly errors, set up a complete sample installation in a typical room at the job site. Check all critical dimensions such as pipe, wire, and duct Maintenance clearance connections requirements. -
Page 12: Step 4 - Connect Piping
Step 4 — Connect Piping — CONDENSATE PIPING — The unit is supplied with a one- inch OD drain connection to connect copper or PVC drain piping. See Fig. 14 and 15. Units of capacity size 2454 kBtu/h come with a factory-installed condensate pump. The maximum pump lift is 27-1/2 inches. -
Page 13: Step 5 - Complete The Electrical Connections
REFRIGERANT PIPING — CAUTION WARNING When connecting from an indoor unit to an outdoor unit, All units must be wired strictly in accordance with the the isolation valve at outdoor unit should be in closed wiring diagram furnished with the unit. Any wiring position throughout the refrigerant piping process. - Page 14 CN3 CN18 CN20 CN4{N_IN} ALARM PUMP L1 L2 POWER IN Fig. 19 —40VMH024 - 054 Typical Wiring Diagram LEGEND: NOTE: Field wiring must use copper conductors only. — Auxiliary Control Board ALARM — Warning Lamp AUXH — Output for Auxiliary Heat —...
- Page 15 To outdoor/indoor/MDC units comm. bus ACB interface CN50 BLUE CN13 CN13 BLACK WHITE To wired controller ON/OFF comm. bus SWITCH CN51 CN51 BLUE FAN CTON HTON AUXH ( Current range: 0-1A) Occupancy sensor/ON-OFF ( Voltage range: 0-24V AC/DC) (Dry contact) “...
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Page 16: Step 6 - Installing The Led Display Panel
Step 6 — Installing the LED Display Panel — Step 7 — Position and Connect Controller — 1. The display panel has buckles on the bottom that are used Wired controllers should be installed in a position that to secure it to the control box. See Fig. 21. maintains good temperature control: •... - Page 17 Fig. 27 Fig. 28 —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 Fig.
- Page 18 outdoor unit Centralized controller wired controller Indoor unit 1# Indoor unit 2# Main MDC unit Indoor unit 3# Indoor unit 4# wired controller MDC unit Indoor unit 5# Maximum wiring length Indoor unit 6# Fig. 30 —Typical Heat Recovery System Communication Wiring...
- Page 19 wired controller t i n i l a l l o Indoor unit 1# Indoor unit 2# Indoor unit 3# Indoor unit 4# • • • • wired controller Indoor unit 5# Matched resistance (network matchded Indoor unit 6# wire group) Maximum wiring length NOTE: Network resistor is shipped with the outdoor unit for field installation on heat pump systems.
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Page 20: Acb Interface
Use the connection wire included in the accessory IMPORTANT: The system can connect 64 indoor units with package to connect the field supplies occupancy sensor. different system addresses. If two indoor units in the same system have identical addresses, abnormal operation will occur. -
Page 21: Maintenance
2. Before dismounting the fan assembly, disconnect all wires between the fan and the controller. 3. The Fan sub-assembly is very heavy so be careful while handling. Otherwise physical injury can occur. 40VMH024 - 036 — Fig. 35 —Fan Disassembly (024-036) Position A Water Tray... - Page 22 Fig. 35 provides an example of the unit. 1. Remove the 11 screws from the Safety Drain Tray and remove the tray along the direction of the arrows in Fig. 36. 2. Clean the tray and evaporator. 3. Use step 1 (in reverse order) to re-assemble the unit. 4 Bolts For fixing the fan assembly FIiler...
- Page 23 Front view of fan assembly Side view of fan assembly installation state Scroll Pothook Move 18mm Push the fan assembly horizontally to the end (about 71in), and Move then take off it. After the fan assembly is taken off Fig. 38 —Fan Disassembly (024-036) 40VMH048 - 054 —...
- Page 24 Position A Water Tray Position B 12 Screw For fixing the safety drain tray Safety Drain Tray Fig. 40 —Fan Disassembly (048-054) Fig. 39 provides an example of the unit. 1. Remove the 12 screws from the fixed Safety Drain Tray, and then take off the tray. See Fig. 40. 2.
- Page 25 Front view of fan assembly installation Side view of fan assembly installation state Pothook Scroll Move 18mm Push fan assembly horizontally to the end (about 71in), and then take off it. Move Fan assembly is taken off Fig. 42 —Fan Disassembly (048-054) 1.
- Page 26 40VMH072 - 096 — bolt motor assembly bottom cover plate screw pothook scroll Fig. 43 —Fan disassembly (072-096) 1. Remove the bottom cover plate. See Fig. 43. 2. Remove the 6 bolts from the front plate. 3. Support the fan sub-assembly from the bottom, then lift up and remove the fan sub-assembly. 4.
- Page 27 Wireless Remote Controller (40VM900001) — Indoor unit addressing can be performed using the wireless remote controller. When using the wireless controller, the user must maintain a line of sight with the receiver on the indoor unit. See Fig. 44 for a description of the buttons on the wireless remote.
- Page 28 Programmable Controller (40VM900003) — When 2. Press TEMP. UP or TEMP. DOWN to move cursor, and setting an address, connect only one wired controller to an select IDU ADDRESSING. Select MENU/OK to access indoor unit. this setting. 3. Press TEMP. UP or TEMP. DOWN to choose the 1.
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Page 29: Troubleshooting
TROUBLESHOOTING Figure 49 shows the LED display panel on the indoor unit. Table 5 provides a summary of display indicators. Table 6 lists problems, possible causes, and possible solutions. MANUAL OPERATION TIMER DEF./FAN ALARM Fig. 49 —LED Display Panel Table 5 —LED Display Indicators ERROR CODE LED DISPLAY MODE/STATUS... - Page 30 Table 6 —Troubleshooting ERROR DESCRIPTION POSSIBLE CAUSES POSSIBLE SOLUTIONS System is in cooling or fan only mode, and All units should be in cooling mode for Heating / Cooling Mode Conflict heating signal is received from a unit on the system to stay in cooling mode system System is in heating mode, and...
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Page 31: Replacement Parts
CERTIFIED TO CSA STD. C22. 2 No. 236 ELECTRIC CHARACTERISTICS ARE ONLY FOR INDOOR UNIT. HIGH STATIC PRESSURE DUCT TYPE AIR CONDITIONER INDOOR UNIT MODEL 40VMH024---3 POWER SUPPLY 208/230V-1Ph-60Hz MINIMUM CIRCUIT AMPACITY 5.7 A MAX FUSE OR HACR BREAKER 15 A 4.5 A... -
Page 32: Appendix A - Dip Switch Settings
Fig. B —SW8 Settings Fig. A — SW1 Settings © Carrier Corporation 2020 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No.20-40VMH001-01 Printed in U.S.A.