Table of Contents
Advertisement
Quick Links
Installation and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Step 1 - Unpack and Inspect Units . . . . . . . . . . . . 4
Step 2 - Position the Unit . . . . . . . . . . . . . . . . . . . . 4
Step 3 - Mount the Unit . . . . . . . . . . . . . . . . . . . . . . 4
Step 4 - Connect Piping . . . . . . . . . . . . . . . . . . . . . . 5
ELECTRICAL REQUIREMENTS . . . . . . . . . . . . 14-17
Opening the Electrical Control Box . . . . . . . . . . . . 14
Complete Electrical Connections. . . . . . . . . . . . . 15
MDC UNIT ADDRESSING . . . . . . . . . . . . . . . . . . . 18
Setting the Unit Address . . . . . . . . . . . . . . . . . . . . 18
Merged Port Setting. . . . . . . . . . . . . . . . . . . . . . . . 18
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . 18, 18
LED Indication Lamp Instructions . . . . . . . . . . . . 18
Error Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SW8/SW9 Query Instruction . . . . . . . . . . . . . . . . . 19
TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
APPENDIX A - DIP SWITCH SETTINGS. . . . . . . . 20
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 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.
For 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
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 18-40VMD001-01
Page
Printed in U.S.A.
Form 40VMD-3SI
Multiport Distribution Controller for
Variable Refrigerant Flow (VRF) Systems
injury or death. CAUTION is used to identify unsafe practices,
which could 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 for the potential of personal
injury. Installing, starting up, and servicing the equipment can
be hazardous due to system pressure, electrical components,
and equipment location.
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.
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.
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.
Pg 1
40VMD006-016
WARNING
WARNING
WARNING
3-18
Replaces: 40VMD-2SI
Advertisement
Table of Contents
Related Manuals for Carrier 40VMD 006
Summary of Contents for Carrier 40VMD 006
-
Page 1: Table Of Contents
40VMD006-016 Multiport Distribution Controller for Variable Refrigerant Flow (VRF) Systems Installation and Maintenance Instructions CONTENTS injury or death. CAUTION is used to identify unsafe practices, which could result in minor personal injury or product and Page property damage. SAFETY CONSIDERATIONS ....1,2 Recognize safety information. -
Page 2: General
GENERAL CAUTION The 40VMD multiport distribution controller (MDC) is a distribution box for refrigerant to multiple indoor fan coil units DO NOT re-use compressor oil or any oil that has been installed in a given heat recovery system. exposed to the atmosphere. Dispose of oil per local codes equipment initially protected... - Page 3 1 -5/8 9/16 13/16 DIMENSIONS (in.) 40VMD MODEL SIZE 016/016L NOTE: All dimensions shown in inches. Fig. 2 —40VMD Dimensional Drawing Table 2 — Components Shipped With Unit NAME SHAPE QUANTITY FUNCTION Same as MDC Adapter pipe for liquid line ports Use for indoor unit (capacity 05~15Btu/h) Same as MDC...
-
Page 4: Installation
INSTALLATION dimensions, refer to Table 1 and Fig. 2. Allow clearance according to local and national codes. Step 1 — Unpack and Inspect Units — Units are • Confirm that the ceiling is able to support the weight of packaged for shipment to avoid damage during normal transit the unit. -
Page 5: Step 4 - Connect Piping
When connecting refrigerant piping follow these procedures: • The refrigerant piping should be dry and free of dust and other impurities. • The number of bends in the refrigeration piping must be fewer than 15. • The bending angle of the refrigerant pipe should not exceed 90 degrees and the bending radius should be as large as possible to prevent any breakage in piping. - Page 6 • Before connecting piping between the indoor units and Table 5 — Connecting Gas Pipes to the Indoor Unit the MDC remove the brazed cap as shown in Fig. 8. INDOOR Depending on the size of the connecting pipe the brazed UNIT cap may be left on or removed.
- Page 7 Nitrogen Purge for MDC Brazing — • Expansion Valves (EXVA~C) in MDC units are shipped from factory opened to 120 pulses. • Expansion valves for indoor units also have an initial opening from the factory. • During brazing, purge with high-purity nitrogen from ODU high and low pressure service valves. Recommended nitrogen flow rate is approximately 1.76 ft /h*.
-
Page 8: Twinning Mdc Ports
TWINNING MDC PORTS PIPING BETWEEN MDC AND SUB MDC — 3 pipes are used to connect the main MDC and the sub MDC. Selection of the Sub MDC should follow the requirements of Table 9. For CAUTION connecting the sub MDC to main MDC, use the high pressure, low pressure and liquid pipes as shown in Fig. - Page 9 Gas pipe Gas pipe High pressure High pressure pipe pipe Liquid pipe Liquid pipe Low pressure Main MDC Low pressure Sub MDC pipe pipe Indoor unit Liquid pipe Liquid pipe Drain pipe Drain pipe Low pressure High pressure Indoor Outdoor unit unit Fig.
- Page 10 Table 12 — Connecting Low Pressure Pipes Table 13 — Connecting High Pressure Pipes Between Main MDC and Sub MDC Between Main MDC and Sub MDC INDOOR INDOOR UNIT UNIT CONNECTION DIAGRAM CONNECTION DIAGRAM CAPACITY CAPACITY (kBtu/h) (kbtu/h) 73~108 73~126 109~168 127~168 LEGEND...
- Page 11 Check valves ODU Side SV1B-1 IDU Side Gas/Liquid separator SV1A-1 HEX1 HEX2 SVmB-n EXVA SVME SVmA-n Check valves SV1B-1 SV1A-1 HEX2 SVmB-n EXVA SVmA-n LEGEND EXV* Expansion Valve — Heat Exchanger — Pressure Sensor — SV*A-*, SV*B-*, Solenoid Valve — SVM*, SVP Temperature Sensor —...
- Page 12 Outdoor Unit NO.2 Sub MDC Unit MDC-Indoor MDC-Main MDC or Sub MDC Indoor Indoor Indoor Indoor Indoor NO.2 Sub MDC Unit Main MDC Sub MDC NO.1 NO.2 NO.3 NO.4 NO.5 5 4 3 NO.1 Sub MDC Unit NO.1 Sub MDC Unit MDC-Indoor MDC-Main MDC or Sub MDC Indoor...
-
Page 13: Piping Between Mdc And Outdoor Unit
PIPING BETWEEN MDC AND OUTDOOR UNIT Table 15 — Connecting High Pressure Pipes with the Outdoor Unit CAUTION OUTDOOR UNIT When connecting from an indoor unit to an outdoor unit, CONNECTION DIAGRAM CAPACITY the isolation valve at the outdoor unit should be in the (kBtu/h) closed position throughout the refrigerant piping process. -
Page 14: Electrical Requirements
Table 16 — Connecting Low Pressure Pipes with the Outdoor Unit CAUTION OUTDOOR UNIT Any original factory wiring that requires replacement must CAPACITY CONNECTION DIAGRAM be replaced with wiring material having a temperature (kBtu/h) rating of at least 105 C. 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. -
Page 15: Complete Electrical Connections
2. Lift up the top cover about 1 in. and then push it Completing Electrical Connections — After the following the direction shown in Fig. 17. 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 terminals. - Page 16 Note:24v AC Power Touch Screen Outdoor Unit Centralized Controller Wired Controller HA HB Indoor unit 1# Indoor unit 2# To No.1 indoor Main MDC unit To outdoor To No.2 Indoor unit 3# indoor To No.3 indoor To Sub MDC Indoor unit 4# wired controller Note:Power from IDU HA HB...
- Page 17 Green CN55 CN22 CN44 CN41 CN44 CN17 CN24 CN26 CN43 CN42 CN33 CN34 CN35 CN36 CN37 CN38 CN39 CN40 CN43 CN29 CN27 CN21 CN53 DSP1 DSP2 CN19 CN29 SW8 SW9 CN51 CN28 CN13 CN57 CN58 CN59 CN60 CN10 CN12 CN16 1(M-I) 2(M-I) 1(M-I) 2(M-I) 3(M-I) 4(M-I)
-
Page 18: Mdc Unit Addressing
Green CN22 CN22 CN17 CN24 CN26 CN44 CN41 CN17 CN24 CN26 CN44 CN41 CN43 CN42 CN33 CN34 CN35 CN36 CN37 CN38 CN39 CN40 CN43 CN42 CN33 CN34 CN35 CN36 CN37 CN38 CN39 CN40 CN21 CN21 DSP1 DSP2 DSP1 DSP2 CN19 CN19 CN29 CN29... -
Page 19: Sw8/Sw9 Query Instruction
Table 20 — Display Code Definitions TEST RUN Before commencing a test run please check the following: DISPLAY DSP1 AND DSP2 DISPLAY DEFINITION S E0 Communication error with outdoor unit 1. Ensure the MDC unit, indoor unit and outdoor unit are installed correctly. -
Page 20: Appendix A - Dip Switch Settings
— 2 Ports Twinned Together Fig. A — S1, S3, S5, and S7 Settings © Carrier Corporation 2018 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 18-40VMD001-01 Printed in U.S.A.