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S
XT I
, O
ERIES
NSTALLATION
PERATION AND
SECTION 19: DIRECT FIRED PROCESS AIR HEATERS
Electrical Shock Hazard
Disconnect electric before service.
More than one disconnect switch may be
required to disconnect electric from
equipment.
Equipment must be properly grounded.
Failure to follow these instructions can result in death, electrical shock or injury.
Explosion Hazard
Leak test all compo-
nents of equipment
gas piping before
operation.
Gas can leak if
piping is not
installed properly.
Do not high pressure
test gas piping with
equipment
connected.
Failure to follow these instructions can result in death, injury or property damage.
This section applies to direct gas-fired process air
heaters of the recirculating or non-recirculating type.
During the process heating cycle (bake or cure)
excess Carbon Monoxide is produced and all entry
into the controlled space is prohibited. Exhaust
systems must be provided for proper operation and
no entry is allowed into the space during the high
58
S
M
ERVICE
ANUAL
DANGER
WARNING
Carbon Monoxide
Hazard
Do not recirculate air
from the heated
space over burner.
Air supply to burner
must be from outside.
Severe Injury Hazard
Do not enter equipment while in operation.
Equipment may start automatically.
Do not operate with door open.
Installation, operation and service must be
done by a trained technician only.
Falling Hazard
Use proper safety
equipment and
practices to avoid
falling.
Do not use any part
of equipment as
support.
temperature or baking cycle. This equipment is to
provide process heating to non-occupied spaces and
may also include operation as a non-recirculating
ventilation air heater. This heater may or may not be
used in a paint booth application.
The intent of this section is to supply the required
information concerning installation and operation of
Burn Hazard
Allow equipment to
cool before service.
Internal components
of equipment may
still be hot after
operation.
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