Johnson Controls DHMW24NKB21S, Owner'S Manual

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1 Additional Usage Information ..................................................................... ..... .1
2 Installation of Cassette Type Indoor Unit ............................................... ...... ....2
2.1 Schematic Diagram of Installation Spaces ............................................................ 2
2.2 Installation Location of the Indoor Unit ................................................................... 2
2.3 Important Notice . .................................................................................................... 3
2.4 Dimension s of Ceiling Opening and Location of Threaded Mounting Rod ........... . 3
2.5 Installation of Cassette Chassis ............ ............................................................... 4
2.6 Refrigerant Piping Connections . ....... ....................................................................... 4
2.7 Condensate Hose................................................................................................... 5
2.8 Electrical wiring ...................................................................................................... 7
2.9 Grille Installation ..................................................................................................... 9
3 Nomenclature of Cassette Type Indoor Unit ................................. ............... 12
4 Working Temperature Range .........................................................................13
5 Trouble s hooting Malfunctions. ........................................................................14
6 Maintenance Method s .....................................................................................16
16 6.1 Cleaning Air Filter............................................................................................... .
6.2 Clean ing Air Inlet Grille .....................................
6.3 Install ing and Chang ing Air Purifier ...............................................
6.4 Clean ing of Surfaces and Louvers .....................
6.5 Seasonal Maintenance ................................................. ..................................
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Table of Contents
Introduction and Safety Information............................................................. ...... ..i
Support Contact Information.............................................................................1 9
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