Greenheck DG / DGX with Pilot Ignition (463555 IOM) (Pre-2008) - Manual (Page 2)

2
TABLE OF CONTENTS
General
Installation
Clearance to Combustibles &
Service Clearances . . . . . . . . . . . . . . . .3
Unit - Indoor . . . . . . . . . . . . . . . . . . . . . . .3
Unit - Arrangement DB/HZ . . . . . . . . . . . .4
Unit - Arrangement DBC . . . . . . . . . . . .5-6
Evaporative Module . . . . . . . . . . . . . . . . . .7
Electrical Wiring . . . . . . . . . . . . . . . . . . .8-9
Direct Gas Piping . . . . . . . . . . . . . . . .10-11
Evaporative Cooler Piping . . . . . . . . .12-13
Water Wizard™ . . . . . . . . . . . . . . . . . . . .14
Direct Expansion (DX) Coil Piping . . .15-16
Chilled Water Coil Piping . . . . . . . . . . . .17
Building Pressure Control . . . . . . . . . . . .18
I
Start-Up
Blower . . . . . . . . . . . . . . . . . . . . . . . . .19-20
Direct Gas . . . . . . . . . . . . . . . . . . . . . .20-26
Evaporative Cooling . . . . . . . . . . . . . . . .27
Water Wizard™ . . . . . . . . . . . . . . . . .28-29
S
Operation
VAV and Recirculating Units . . . . . . .30-31
Electrical . . . . . . . . . . . . . . . . . . . . . . . . .32
Water Wizard™ . . . . . . . . . . . . . . . . . . . .33
O
Troubleshooting
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Heater . . . . . . . . . . . . . . . . . . . . . . . . .35-37
Evaporative Cooling . . . . . . . . . . . . . . . .38
Water Wizard™ . . . . . . . . . . . . . . . . . . . .39
Vibration . . . . . . . . . . . . . . . . . . . . . . . . . .40
T
Reference
Gas Train Layout . . . . . . . . . . . . . . . . . . .46
Control Center Layout . . . . . . . . . . . . . . .47
Dirty Filter Switch . . . . . . . . . . . . . . . . . .47
Start-Up Checklist . . . . . . . . . . . . . . . . . .48
Maintenance Log . . . . . . . . . . . . . . . .49-51
Warranty . . . . . . . . . . . . . . . . . . .Backcover
Maintenance
Routine . . . . . . . . . . . . . . . . . . . . . . . .41-43
Fall
. . . . . . . . . . . . . . . . . . . . . . . . .44-45
M
R
STORAGE
When a unit is not going to be in service for an extended amount of time, certain procedures should be followed
to keep the unit in proper operating condition:
• Plug all piping
• Rotate fan wheel monthly and purge bearings once every one to three months (depending on environment).
• Energize fan motor once every three months
• Store belts flat to keep them from warping and stretching
• Store unit in location without vibration
• Cover unit with tarp to protect from dirt and moisture
• After storage period, purge grease before putting fan into service
NOTE!
Do not cover unit with a black tarp, this would
promote condensation.
NOTE!
Improper storage which results in damage to the
unit will void the warranty.