Heating System - Trane DCY060F1 User's Information Manual

GENERAL INFORMATION
When the selector switch is positioned at Off your unit will not
operate in either heat or cool modes. If the selector switch is
set at heat, the unit will automatically cycle on and off to
maintain the desired temperature settings. The unit will also
operate automatically when the selector switch is positioned
at Cool.
The fan selector switch can be used to operate the indoor fan
continuously by positioning it at On. When set at Auto, the
fan will only operate when required during the heating or
cooling cycles.
To ensure that the thermostat operates properly, it must be
level and positioned to avoid the influence of such external
heat sources as lamps, televisions or other heat-producing
appliances.
HEATING SYSTEM
HEATING CYCLE OPERATION
Your unit's heating system has a solid-state electronic
ignition control that lights the furnace burners each time the
thermostat calls for heat. At the end of each heating cycle,
the furnace burners are extinguished. This type of system is
called Direct Spark Ignition (DSI).
A normal heating cycle begins when the air temperature in
your home drops below the thermostat setting. The thermo-
stat than energizes the heating electrical circuit that starts
and controls the furnace burners. Shortly after the burners
ignite, the indoor fan starts and circulates warm air through
your home.
When the air temperature rises to the thermostat setting, the
thermostat de-energizes the heating electrical circuit, which
in turn, extinguishes the furnace burners. The indoor fan
continues to circulate warm air until most of the heat is
removed from the unit's combustion chamber.
SAFETY CONTROLS
Your unit is equipped with an automatic reset safety limit
Controlto prevent overheating. When this control opens, it
shuts down the heating electrical circuit until the unit cools
down sufficiently. Inadequate airflow (i.e. caused by dirty air
filters or defective fan motor), may cause the unit to cycle on
and off as the limit control trips and automatically resets. If
you suspect that the unit is cycling on its limit control,
immediately contact a serviceman for instructions.
If flames from the burner are not properly drawn into the heat
exchanger, a Flame Rollout Protection Control will open
causing the furnace to shut off. The cause must be investi-
gated by a qualified serviceman.
HEATING SYSTEM START-UP
Since your unit has an automatic ignition system, it is easy
to start the heating cycle at the beginning of the heating
season.
In order for this unit to operate properly and safely, the
furnace needs air for both combustion and ventilation.
Accordingly, observe the area in which the furnace is in-
stalled. Check to make sure that all the air openings are
unobstructed. Likewise, insure that the spacing around the
furnace it self is not blocked or obstructed.
1. Set the thermostat's heating adjustment lever at its
lowest setting; then move the selector switch to the Off
position.
2. Turn off all electric power to the unit.
3. This unit is equipped with an ignition device which
automatically lights the burners.
CAUTION: Never attempt to manually light the burner.
4. Remove the access panel that contains the following
label:
I REMOVE THIS PANEL TO GAIN I
ACCESS TO THE GAS VALVE
5. Turn gas control knob clockwise
_n to the "OFF"
position. See Figure 2.
NOTE: Some valves require the knob to be pushed in slightly
before turning.
DO NOT FORCE!
,
.
8.
9.
10.
11.
Wait (5) five minutes to clear any gas. If you then smell
gas, STOP! Follow "For Your Safety;' "What To Do If
You Smell Gas" instructions on the front page. If you do
not smell gas, go to next step.
Turn gas knob counterclockwise _ to "ON" position.
Replace panel remove in Step 4.
Turn on all electrical power to the unit.
Set thermostat to desired temperature and move the
selector switch to the "ON" position. The unit will now
operate automatically.
If the unit will not operate, follow the instructions 'q'O
TURN OFF GAS TO UNIT" (under HEATING SYSTEM
SHUTDOWN) and call your service technician or gas
supplier.
Important Note: The unit is to be adjusted to obtain an air
rise that is specified on the nameplate.
Owg. No.21X660305 P02 3