2
Air Handling Unit
Installation, Operation, and Maintenance Manual
April 2021
Only qualified personnel should install and service the equipment. Improperly installed, adjusted or altered equipment by
an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the
literature and on the tags, stickers, and labels that are attached to the equipment.
Table of Contents
SECTION DESCRIPTION
PAGE
1.0 ...................General ..............................................................................................................................................................................3
2.0 ...................Receiving ..........................................................................................................................................................................3
3.0 ...................Storage ..............................................................................................................................................................................3
4.0 ...................Roof Curb Installation ...................................................................................................................................................4
5.0 ...................Rigging ..............................................................................................................................................................................5
6.0 ...................Unit Assembly .................................................................................................................................................................7
7.0 ...................Condensate Drain ....................................................................................................................................................... 12
8.0 ...................Filters .............................................................................................................................................................................. 14
9.0 ...................Isolators .......................................................................................................................................................................... 15
10.0 ...................Rainhoods ..................................................................................................................................................................... 16
11.0 ...................Startup ........................................................................................................................................................................... 17
12.0 ...................Maintenance ................................................................................................................................................................. 17
12.1 ...................Belt-Driven Fan Maintenance ................................................................................................................................. 17
12.6 ...................FanMatrix™ Maintenance ......................................................................................................................................... 22
12.7 ...................Door Adjustment ......................................................................................................................................................... 24
12.8 ...................Field Penetration for Electrical Wiring .................................................................................................................. 25
13.0 ...................Troubleshooting Guide .............................................................................................................................................. 27
13.1 ...................Fan Surge ...................................................................................................................................................................... 29
13.2 ...................Dwyer Digihelic DHII Programming ...................................................................................................................... 30
14.0 ...................Useful Equations ......................................................................................................................................................... 32
FCD-0025 ClimateCraft Startup Form 101310 ................................................................................................ 34
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WARNING
