McQuay MDS080BR Installation Guide Page 70
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Design & installation Guide For McQuay MDS Multi System
Balance pipe connection
Balance pipe must be installed. Balance pipe shall be connected through the hole of side panel
or base panel or the position with the other outdoor unit.
Balance pipe shall be installed horizontally and orderly, and shall be lower than the access
valve for balance pipe.
Protect the balance pipe carefully and avoid touching any other parts, especially need to keep
the pipe from touching the wall of hole.
Balance pipe connection with the unit is shown in below drawing.
4.2 Indoor Unit Installation
To choose the position of installation
Improper installation position will affect the cooling and heating performance, or even cause
malfunction or accident. Follow the below instructions:
Ensure air flow everywhere of room.
No barrier for air flow.
Ensure enough maintenance space for installation. Otherwise, it will cause difficulties to
maintain the unit in future.
Insulation and protection for connceting pipe
All connceting pipe shall be well insulated.
All piping shall be well protected to avoid any bumping, trampling and rubbing with the
surround when vibrating. Otherwise the piping may be damaged, and affect the unit perfor-
mance and safety, further more other safety problems may occur.
Balance pipe
Screw
joint
Access valve for
balance pipe( 9.52)
Base panel hole
Side panel hole
- CONTENTS 3
- Overview 4
- MDS080BR MDS100BR MDS120BR 7
- MDS150BR 7
- MDS200BR MDS220BR MDS240BR 8
- MDS180BR 8
- MDS280BR MDS300BR 9
- MDS260BR 9
- 1.3 Main Features 10
- Nominal capacity 11
- 100% operating 11
- 1.4 Nomenclature 12
- 1.5 Products Series 14
- 1.6 Performance Parameter 15
- 1.6.3 Ceiling Cassette 16
- 1.7 Operating Range 19
- 1.8 Refnet 19
- 1.8.2 C Type 20
- 1.9 Outline of Indoor Units 21
- 1.9.2 MDB050T 22
- 1.9.3 MDB060T 22
- 1.9.5 MCM020T MCM030T MCM050T 23
- 1.9.6 Auxiliary Heating Coil 24
- 1.10 Outline of Outdoor Units 25
- Unit Control 27
- Te m perature 28
- 2.3.3 Wire Control Panel 31
- 2.3.4 Outline and Dimension 31
- 2.3.5 Installation Type 31
- concealed installation 31
- 2.5 Network Central Control 34
- 2.6 Wiring Diagram 35
- Model MCK025/030/040/050T 36
- MCM020/030T 36
- Model MCM050T 37
- Model MDB050/060T 37
- Model MDS030A 38
- Model MDS030AR 38
- Model MDS040AR 39
- Model MDS040A 39
- Model MDS050A 40
- Model MDS050AR(220V~/50Hz) 40
- Model MDS060A 41
- Model MDS060AR(220V~/50Hz) 42
- Model MDS080/100/120B 43
- Model MDS080/100/120BR 43
- Model MDS150B 44
- Model MDS150BR 44
- Model MDS180B 45
- Model MDS180BR 45
- Model MDS200/220/240B 46
- Model MDS200/220/240BR 46
- Model MDS260BR(Master Unit) 47
- Connecting the master unit 48
- 2.7 Electric Connection 49
- 2.7.3 MDS080 240B/BR 50
- 2.7.4 MDS260 300B/BR 50
- 2.8 Electric Data 51
- Selection 52
- 3.2 Selection of Indoor Units 54
- Correction factor 57
- 3.4 Design of Air System 58
- 3.5 Slection of Refnet Joint 63
- For MDS-A series 64
- For MDS-B series 64
- Y type 65
- Type: MDS-Y5 65
- 3.6 Selection of E-EXV Box 66
- Installation 67
- Suspension ropes 68
- Protective pads 68
- (2 ropes) 68
- 4.2 Indoor Unit Installation 70
- (machine dimension) 820mm 73
- PULL PULL PULL PULL 76
- Height between indoor 78
- Refnet joint 80
- Outdoor unit 80
- Distributor kit 80
- Controller 81
- Indoor unit 81
- To indoor unit 82
- To outdoor unit 82
- Moisture 83
- Blind plug(copper) 84
- Flare fitting 84
- Avoid wielding too often 85
- Work flow 86
- NO.1 NO.2 87
- 6.4mm~25.4mm 10mm or more 88
- 28.6mm~38.1mm 15mm or more 88
- Unit: mm 89
- Absolute pressure 91
- Surface pressure (kg/cm 91
- Ordinary vacuum drying 92
- Special vacuum drying 93
- 30 or more 96
- Pipe mouth facing downward 96
- Air vent pipe 96
- Air vent device 97
- 5.1.1 MDS Series Indoor Units 98
- Model 1 setting (SW1.1 SW1.6) 98
- Address settings (SW2.1 99
- Model 2 setting 100
- SW3.5 SW3.8 100
- Power setting SW3.1 SW3.4 100
- Reserve 100
- Digital control 102
- 5.2 Trial Run 105
- Servicing and Maintenance 106
- 6.2 Servicing and Maintenance 107
- For example: 112
- WWW.MCQUAY.COM 116
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