6
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Operation
Instructions
(Continued)
3. Adjusting the louvers to the desired
position (see Figure 8).
NOTE:
The louvers are designed so
they cannot be completely closed.
Do not attempt to defeat this feature,
damage to the unit can result.
ADJUSTING HEAT OUTPUT
Increase or decrease heat output by
switching wires at the wattage change
terminal board. The heaters are factory
wired to deliver a heat output of 17,065
BTU per hour. Should your particular
application require less heat output,
refer to Table 1 and change the wires at
the wattage change terminal board as
shown in Wiring Diagram (see Figure 9).
To prevent possible
electric shock,
disconnect power to the heater at the
main service panel before attempting
to adjust the heat output of this unit.
It is important to keep this heater
clean. Your heater will give you years of
service and comfort with only minimum
care. To assure efficient operation
follow the simple instructions below.
All servicing beyond
simple cleaning
that requires disassembly should be
performed by qualified service
personnel.
To reduce the risk
of fire and electric
shock or injury, disconnect all power
coming to heater at main service panel
and check that the element is cool
before servicing or performing
maintenance.
USER CLEANING INSTRUCTIONS
1. After the heater has cooled, a vacuum
cleaner with brush attachment may
be used to remove dust and lint from
exterior surfaces of the heater
including the grille openings.
2. With a damp cloth, wipe dust and lint
from grille and exterior surfaces.
3. Return power to heater and check to
make sure it is operating properly.
MAINTENANCE CLEANING
INSTRUCTIONS
(To be performed only by
Qualified Service Personnel)
At least annually, the heater should
be cleaned and serviced by a qualified
service person to assure safe and
efficient operation. After completing
the cleaning and servicing, the heater
should be fully reassembled and
checked for proper operation.
Maintenance
Instructions
It is important to keep this heater
clean. Your heater will give you years of
service and comfort with only minimum
care. To assure efficient operation
follow the simple instructions below.
All servicing beyond
simple cleaning
that requires disassembly should be
performed by qualified service
personnel.
To reduce the risk
of fire and electric
shock or injury, disconnect all power
coming to heater at main service panel
and check that the element is cool
before servicing or performing
maintenance.
USER CLEANING INSTRUCTIONS
1. After the heater has cooled, a vacuum
cleaner with brush attachment may
be used to remove dust and lint from
exterior surfaces of the heater
including the grille openings.
2. With a damp cloth, wipe dust and lint
from grille and exterior surfaces.
3. Return power to heater and check to
make sure it is operating properly.
MAINTENANCE CLEANING
INSTRUCTIONS
(To be performed only by
Qualified Service Personnel)
At least annually, the heater should
be cleaned and serviced by a qualified
service person to assure safe and
efficient operation. After completing
the cleaning and servicing, the heater
should be fully reassembled and
checked for proper operation.
Dayton
®
Electric Utility Heaters
3UG73E and 3UG74E
Dayton Operating Instructions and Parts Manual
