Greenheck DGX User Manual

2
TABLE OF CONTENTS
Installation
Unit - Indoor . . . . . . . . . . . . . . . . . . . . . . .3
Unit - Arrangement DB/HZ . . . . . . . . . . . .4
Unit - Arrangement DBC . . . . . . . . . . . .5-6
Evaporative Cooler . . . . . . . . . . . . . . . . . .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 . . . . . . . . . . . . . . . . . . . . . .21-25
Evaporative Cooling . . . . . . . . . . . . . . . .26
Water Wizard™ . . . . . . . . . . . . . . . . .27-28
S
Operation
Recirculating/VAV Units . . . . . . . . . . . . .29
Electrical . . . . . . . . . . . . . . . . . . . . . . . . .30
Water Wizard™ . . . . . . . . . . . . . . . . . . . .31
O
Troubleshooting
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Heater . . . . . . . . . . . . . . . . . . . . . . . . .33-34
Evaporative Cooling . . . . . . . . . . . . . . . .35
Vibration . . . . . . . . . . . . . . . . . . . . . . . . . .36
Water Wizard™ . . . . . . . . . . . . . . . . . . . .37
T
Reference
Gas Train Layout . . . . . . . . . . . . . . . . . . .46
Control Center Layout . . . . . . . . . . . . . . .47
Maintenance
Routine . . . . . . . . . . . . . . . . . . . . . . . .38-40
Fall . . . . . . . . . . . . . . . . . . . . . . . . .41-42
Log . . . . . . . . . . . . . . . . . . . . . . . . .43-45
M
R
STORAGE
When a unit is not going to be in service for an extended period 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.

Greenheck DGX Specifications

General

Brand	Greenheck
Model	DGX
Category	Fan
Language	English