
(Vers. 10.26.2017)
Page 21 of 24
Series (E) Refractory Walled Air Curtain Burner (Electric Motor & VFD)
OPERATING MANUAL
MAINTENANCE AND CARE
A. Daily Check List:
1.
Ensure that the ground wire is properly connected to
the FireBox grounding lug and the grounding rod.
2.
Ensure that the VFD cooling fan intake air filter is
clean (lower left small grey access door. Remove
thumbscrews to open door (Position and type may
vary).
3.
Insure that the external power grid from the power
company is providing proper power to the pole (480V
balanced three
-
phase). Brown
-
outs (voltage deficien-
cy or under voltage) or excessive voltage spikes can
cause default shut
-
downs by the VFD protective cir-
cuitry to prevent overload conditions on the motor
side. Such default shut down requires the powering
off of the VFD to initiate an automatic reset of the
unit. As the air fan would not be supplying air to the
manifold for the reset period of time, such shut down should be absolutely avoid-
ed, once there is a fire in the FireBox to prevent warping of the manifold. Do not
operate the FireBox S
-
Series (E), if weather conditions may indicate a possible
interruption of power during the work day.
4.
Do not wash down the NEMA IV enclosure with a water hose, as water may en-
ter through the cooling fan vents.
B. Periodic Maintenance
Grease the electric motor bearings (very sparingly, consult electric motor book
-
let/manual);
ALWAYS INSURE THAT THE FIREBOX UNIT IS PROPERLY
GROUNDED. CHECK GROUND CONNECTION AT GROUND-
ING LUG AND GROUNDING ROD. CHECK GROUND WIRE.
Intake (filter) of VFD cooling
fan located at lower left side
of control box housing
(Position, type or cover may vary)