Table Of Contents - Lennox INNOV DM R Series Application Manual

Index
1 - General Description ........................................................................................................... 3
1.1 Structure ................................................................................................................................................ 4
1.2 Application limits ................................................................................................................................... 4
1.3 DX units cooling circuit ......................................................................................................................... 5
1.4 "CW" units hydraulic section ............................................................................................................... 6
1.5 Installation general rules ...................................................................................................................... 8
2 - Inspection / Transport / Positioning .................................................................................. 8
2.1 Inspection on receipt ............................................................................................................................ 8
2.2 Lifting and transport.............................................................................................................................. 8
2.3 Unpacking ............................................................................................................................................. 8
2.4 Positioning............................................................................................................................................. 8
3 - Installation .......................................................................................................................... 9
4 - Evacuation and Charging Operations for DX-Type Units ............................................... 10
4.1 Introduction ......................................................................................................................................... 10
4.2 Full vacuum and charge of the unit ................................................................................................... 11
4.3 Evacuating a circuit "contaminated" with refrigerant ....................................................................... 11
4.4 Charging positions (single point) ...................................................................................................... 12
5 - Electrical Connections ..................................................................................................... 12
5.1 Generalities ......................................................................................................................................... 12
6 - Operating Diagrams ......................................................................................................... 13
7 - Start-Up ............................................................................................................................ 14
7.1 Preliminary checks.............................................................................................................................. 14
8 - Operating Parameters Setting ......................................................................................... 14
8.1 Generalities ......................................................................................................................................... 14
8.2 Maximum pressure switch.................................................................................................................. 15
8.3 Minimum pressure switch .................................................................................................................. 15
9 - Maintenance ..................................................................................................................... 15
9.1 Warnings ............................................................................................................................................. 15
9.2 Periodical checks ................................................................................................................................ 16
9.3 Set the right fan speed ....................................................................................................................... 17
9.4 EC fans ................................................................................................................................................ 18
9.5 Repairing the cooling circuit .............................................................................................................. 19
9.6 Tightness test ...................................................................................................................................... 19
9.7 Hard vacuum and drying of cooling circuit ....................................................................................... 19
9.8 Recharging with refrigerant R407C.................................................................................................... 19
9.9 Environmental protection ................................................................................................................... 20
10 - Starting-Up Instructions for INNOV@DM-R Air-Conditioning Units ............................. 20
10.1 Starting operation ............................................................................................................................... 20
10.2 Checks during operation .................................................................................................................... 20
10.3 Checking the refrigerant level (DX version)....................................................................................... 21
11 - Troubleshooting ............................................................................................................. 22
12 - Technical Data ............................................................................................................... 23
INNOV@ ECFAN DMR -AGU-0912-E • 1 •