507391-01 Page 3 of 4Issue 2120
Temperature Control
To put the system into operation, set the thermostat to either
“HEAT” or “COOL” mode. After you have chosen the type
of operation you desire, adjust the thermostat to select the
temperature you would like the system to maintain.
Fan Operation
You may wish to increase your comfort by setting your
system for continuous air circulation of the indoor air. The
fan setting on the thermostat permits you to do this.
With the fan setting in the “ON” position, the fan will operate
continuously. “AUTO” position provides fan operation only
when the unit is in either heating or cooling.
Thermostat Operation
There are many types and styles of thermostats. However,
almost all thermostats perform the same basic functions
described in the following section.
There are routine maintenance steps you should take to
keep your unit operating eciently. This will assure longer
life, lower operating costs and fewer service calls. Certain
service and maintenance procedures require the skill of a
trained service person who utilizes special tools and training.
Personal injury can result if unqualied personnel attempt
those procedures.
Your unit should be inspected and serviced at least once
per year by a qualied service technician.
Periodic Inspections
Your HWC8/HWC9 Model Vintage™ unit is designed to
give many years of ecient, satisfactory service. However,
the varied air pollutants commonly found in most areas can
aect longevity and safety. Chemicals contained in everyday
household items such as laundry detergents, cleaning
sprays, hair sprays, deodorizers and other products which
produce airborne residuals may have an adverse aect upon
the metals used to construct your appliance.
Periodic inspection of your unit is important. All ue product
carrying areas of the furnace, the vent-air intake system,
main gas burners and heat exchanger should be visually
inspected. Removal of access panels is necessary for
inspection. One inspection should be made prior to the
beginning of the heating season and another half way
through the heating season. If unusual amounts of rust,
akes or other deposits, coatings or corrosion are
observed, it is important that an authorized dealer or a
qualied service person perform an evaluation and any
required maintenance.
Maintenance Of Your Unit
Always shut o all power to the unit before attempting
any of the following maintenance procedures. Failure
to do so may result in personal injury.
WARNING
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