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MVCU-2009 Application Information
Refrigerant Piping
Piping Length and Elevation
When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases,
system piping resistance to the refrigerant fl ow increases, thus lowering the cooling capacity, and as the result
the compressor may become defective. Always choose the shortest path and follow the recommendation as
tabulated below:
Data
Model
MVCU 025A MVCU 030A
MVCU 035A /
040A
MVCU 050A MVCU 060A
Max. Length, L 15m 35m 35m 35m 35m
Max. Elevation, H 8m 10m 10m 10m 20m
Max. No. of bends 10 10 10 10 10
* Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance
Remark: The refrigerant pre-charged in the outdoor unit is for piping length up to 7.6m/25ft.
Piping Works
Do not use contaminated or damaged copper tubing. Do not remove plastic, rubber plugs and brass nuts
from the valves, fi ttings, tubings and coils until you are ready to connect suction or liquid line into valves or
fi ttings.
If any brazing work is required, ensure that the nitrogen gas is passed through coil and joints while the
brazing work is being done. This will eliminate soot formation on the inside walls of the copper tubings.
Cut the connection pipe with a pipe cutter.
Cutting copper tube
1/4t
Remove burrs from cut edges of the pipes with remover. Hold the end of the pipe downwards to prevent
metal chips from entering the pipe.
Remove burr
Insert the fl are nuts, mounted on the connection parts of both the indoor unit and outdoor unit onto the
copper pipes.
Flare the pipe with extra length above the fl aring tool as shown in the table.
The fl ared edge must be even and not cracked or scratched.
Ø Tube,
D (mm / in)
A (mm)
Imperial Die Rigid Die
6.35 / 1/4 1.3 0.7
9.52 / 3/8 1.6 1.0
12.70 / 1/2 1.9 1.3
15.88 / 5/8 2.2 1.7
19.05 / 3/4 2.5 2.0
Swaging block
Copper tube
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05_Application Information.indd 1605_Application Information.indd 16 4/28/2009 11:12:33 AM4/28/2009 11:12:33 AM
- Vertical Condensing Unit 1
- Table of Contents 2
- Nomenclature 3
- Outdoor Unit 4
- M VCU 025 A 4
- Product Line-Up 5
- Indoor Unit 5
- Features 10
- Application Information 11
- MCC060C – MVCU060A 13
- Controller 14
- Operation Guide 14
- Operating Instruction 15
- WARNING 16
- CAUTION 16
- Installation of Outdoor Unit 17
- Installation Clearance 17
- Remove burr 18
- Swaging block 18
- Copper tube 18
- Filter Dryer 19
- (Mclecular-Sieve Type 19
- Note : R22 - Nil 19
- R410A - Nil 19
- Sound Data 21
- Sound Pressure Level 22
- Microphone 23
- Sound Power Level 25
- MWM025G 26
- NC CURVES 26
- MWM030F 26
- MCM025D 27
- MCM030D 27
- MCM040D 28
- MCM050D 28
- MCM062C 29
- MCK025A 29
- MCK030A 30
- MCK040A 30
- MCK050A 31
- MCC025C 31
- MCC030C 32
- MCC040C 32
- MCC050C 33
- MCC060C 33
- Component Data (R22) 44
- Safety Devices 54
- Performance Data 57
- MVCU-2009 Performance Data 58
- Performance Data MVCU-2009 59
- ⇒ x = 5.826kW 60
- ⇒ y = 4.343kW 60
- Performance Table 61
- Cooling Only (R22) 62
- Outline and Dimension 71
- Model: MCM025/030/040/050D 72
- Model: MCM062C 73
- Model: MCK025/030/040/050A 73
- Model: MCC025C 74
- Model: MCC030/040/050/060C 74
- Note: Dimension in mm 75
- Model A B C D E F G 75
- Electrical Data 77
- Wiring Diagram 82
- Cooling Only 83
- Indoor Unit Outdoor Unit 83
- MCM050D MVCU050A 87
- MCK050A MVCU050A 92
- MCC050C MVCU050A 96
- Service and Maintenance 98
- Pre Start Up Maintenance 99
- Troubleshooting 100
- MWM-G Series 101
- COOL DRY FAN 102
- MCK-A Series 103
- MCC-C Series 104
- Fault Condition 105
- MVCU -2009 Troubleshooting 106
- Exploded View and Part List 110
- INDOOR UNIT 111
- MODEL: MWM030F 111
- MODEL: MCM025D 112
- MODEL: MCM030D 113
- MODEL: MCM040/050D 114
- MODEL: MCM062C 116
- MODEL: MCK025/030/040/050A 117
- MODEL: MCK-A PANEL 119
- MODEL: MCC025C 120
- MODEL: MCC030/040C 121
- MODEL: MCC050/060C 123
- MODEL: MVCU025A 125
- MODEL: MVCU030/035A 126
- MODEL: MVCU040/050/060A 128
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