Greenheck DGK (468695) - Manual (Page 3)

3
REMOVING FROM STORAGE
As units are removed from storage to be installed
in their final location, they should be protected and
maintained in a similar fashion, until the equipment goes
into operation.
Prior to installing the unit and system components,
inspect the unit assembly to make sure it is in working
order.
1. Check all fasteners, set screws on the fan, wheel,
bearings, drive, motor base, and accessories for
tightness.
2. Rotate the fan wheel(s) by hand and assure no parts
are rubbing.
Clearance to Combustibles
Clearance to combustibles is defined as the minimum distance
required between the heater and adjacent combustible
surfaces to ensure the adjacent surface’s temperature does
not exceed 90° above the ambient temperature.
Floor Top Sides Ends
Insulated Units 0 inches 0 inches 0 inches 0 inches
Service Clearances
Recommended Minimum Service Clearances
Housing 32 and less
42 inches on the
controls side of the unit
Clearances for component removal may be greater than the
service clearances listed
.
Table of Contents
Installation
Clearance to Combustibles/Service Clearances . . 3
Unit Arrangement DB / HZ . . . . . . . . . . . . . . . . . . . 4
Hinged Weatherhood - DGK-H25 . . . . . . . . . . . . . 5
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Direct Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Start-Up
Start-Up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . 7
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Direct Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Troubleshooting
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heater, General . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heater DGK-H15 . . . . . . . . . . . . . . . . . . . . . . . . . 13
Heater DGK-H25 . . . . . . . . . . . . . . . . . . . . . . .14-15
Excessive Noise or Vibration . . . . . . . . . . . . . . . . 16
Maintenance
Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reference
Gas Train Layout DGK-H15 - <400 MBH . . . . . . 18
Control Center Layout DGK-H15 . . . . . . . . . . . . . 18
Gas Train Layout DGK-H25 - <800 MBH . . . . . . 19
Control Center Layout DGK-H25 . . . . . . . . . . . . . 19
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . Backcover
Model DGK Make-Up Air
®