McQuay MDS 30 - Default Chapter; Table of Contents

ii Installation Manual IM-MDS_(i)
1.0 Safety Precautions...……………………………………………………………………………....1
1.1 Precautions before installation………………………………………………..………..1
1.2 Safety reminder on installation process...……………………………………………..1
1.3 Precautions on commissioning..………………………………………………………….1
1.4 Precautions for devices that use R410A refrigerant……………………………….....1
1.5 Other precautions……...…………………………………………………………………..2
2.0 Electrical Parameter……………………………………………………………………………..2
3.0 Installation Instruction……………………………………………………………….…………..4
4.0 Outdoor Unit Installation...………………………………………………………………………...4
4.1 Location and space of installation….…………………………………………………….4
4.2 Unit handling…………….………………………………………………………………….6
4.3 Unit installation…………..…………………………………………………………………6
4.4 Installation of master and slave unit……………………………………………………..6
5.0 Indoor Unit Installation…………………………………………………………………………7
5.1 Location and space of installation...……………………………………………………..7
5.2 Installation of MEX box………………………………….………………………………...7
5.3 Installation of MCCD series indoor unit………………………………………………….8
5.4 Installation of MCKD series indoor unit …………………………...…………………….8
5.5 Installation of MCMD series indoor unit ……………………………………………….10
5.6 Installation of MWMD series indoor unit ………………………………………………12
6.0 Piping Installation…………………………………………………………………………………13
6.1 Precautions for piping installation……………………………………………………....13
6.2 Refrigerant piping system………..………………………………………………..........14
6.3 Piping size, refnet and distributor selection….………………………………………15
6.4 Installation of refrigerant piping…………………………………………………...........18
6.5 Ball valve installation and operation.…………………………………………………19
7.0 Wiring Connection……………………………………………………………………………..…20
7.1 General wiring precautions……………………………………………………………20
7.2 Wire specification…………………………………………………………………………21
7.3 Electrical wiring connection……………………………………………………………21
7.4 Communication wiring connection……………………………………………………22
7.5 Dip switch setting……………………….………………………………………………..23
7.6 Auto restart setting……………………………………….............................................24
8.0 Air Leakage Test, Vacuum and Refrigerant Charge….…………………………………..….25
8.1 Air leakage test………………………...…………………………………………………25
8.2 Vacuum……………………………………………………………………………………25
8.3 Refrigerant charge…………..……………………………………………………………25
9.0 Commissioning………………………………………...….…………………………………..….25
9.1 Checking list before commissioning....…………………………………………………25
9.2 Commissioning record table.……………………………………………………………25
9.3 Common problems during commissioning.……………………………………………25
10.0 Unit Outlines and Dimensions….…………………………………..…………………………27
Table of Content