Blower - Greenheck DGX Installation, Operation And Maintenance Manual

4. Pipe the Optional Vent Line
If an optional vent line is located between the safety
shutoff valves it must be piped to the outdoors.
WARNING
Reference the National Fuel Gas Code for additional
vent line requirements.
Vent Line Solenoid
to burner
Safety Shut-Off Valves
Optional Vent Line
5. Test the System for Leaks
Check both the supply lines and the factory piping for
leaks. Apply a soap and water solution to all piping and
watch for bubbling which indicates a leak.
WARNING
NEVER test for a gas leak with an open flame.
NOTE
The factory piping has been checked for leaks, but
should be rechecked due to shipping and installation.
®
Start-Up - Blower
Refer to the Start-Up Checklist in the Reference
section before proceeding further!
Pre Start-Up Check
Rotate the fan wheel by hand and make sure no parts are
rubbing. Check the V-belt drive for proper alignment and
tension (a guide for proper belt tension and alignment
is provided in the Maintenance, V-Belt Drives section).
to outdoors Check fasteners, set screws and locking collars on the
fan, bearings, drive, motor base, and accessories for
tightness.
Disconnect and lock-out all power and gas before
performing any maintenance or service to the unit.
from supply
Failure to due so could result in serious injury or death
and damage to equipment.
• Voltage Meter (with wire probes)
• Amperage Meter
• Micro Amp Meter
• Tachometer
• Thermometer
• Incline manometer or equivalent
Check the housing, blower, and ductwork for any
foreign objects before running the blower.
1. Check the Voltage
Before starting the unit, compare the supplied voltage,
hertz, and phase with the unit and motor's nameplate
information.
WARNING
SPECIAL TOOLS REQUIRED
WARNING
Voltage, Hertz, Phase
VOLTS HZ
SUP HP
MCA
Unit's Total MCA
Electrical Nameplate
DGX Industrial Space Heating
PH
MOP
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