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The manufacturer optimizes the performance of homes and buildings around the world. A business of
Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy efficient environments,
the manufacturer offers a broad portfolio of advanced controls and HVAC systems, comprehensive
building services, and parts. For more information, visit www.IRCO.com.
The manufacturer has a policy of continuous product and product data improvement and reserves the right to change
design and specifications without notice
© 2012 Trane All rights reserved
RT-SVU04F-EN (11 May 2012)
Supersedes RT-SVU04E-EN (10 Nov
2011)
We are committed to using environmentally
conscious print practices that reduce waste.
Heating System
Heating Cycle Operation
A normal heating cycle begins when the air temperature in your home
drops below the selected setting. The control then energizes the heating
electrical circuit that starts and controls the main burners. Shortly after the
main burners ignite, the indoor fan starts and circulates warm air through
your home, or building.
When the air temperature rises to the selected setting, the control de-
energizes the heating electrical circuit which, in turn, extinguishes the main
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 automatic reset safety limit controls to prevent
overheating. When one of these controls open, it shuts down the heating
electrical circuit until it cools down sufficiently. Inadequate airflow (i.e.,
caused by dirty air filters or a defective fan motor) may cause the unit to
cycle on and off as the limit controls trip and automatically reset. If you
suspect that the unit is cycling on its limit controls, immediately contact a
serviceman for instructions.
Operating Instructions
1. Set the temperature control to lowest setting.
2. Turn off all electric power to the appliance.
3. This appliance is equipped with an ignition device which automatically
lights the burner. Do not try to light the burner by hand.
Note:
Depending on heater size, the gas valve control will be a knob, as
shown in
Figure 1
, or a toggle switch.
4. Remove the access panel that contains the following label:
5. Turn the gas control knob clockwise or flip the toggle switch to the “OFF”
position.
Note:
Some valves require the knob to be pushed in slightly before turning.
Do not force.
Figure 1.
Gas valve control knob (toggle switch used in some heater
sizes)
REMOVE THIS PANEL
TO GAIN ACCESS
TO THE GAS VALVE
6. Wait five (5) minutes to clear out any gas. If you then smell gas, STOP!
Follow
“What To Do If You Smell Gas”
in the safety information above
in this manual. If you don’t smell gas, go to the next step.
7. Turn gas control knob counter-clockwise or flip the toggle switch to “ON”.
8. Replace panel removed in
Step 4
.
9. Turn on all electric power to the appliance.
10.Set the temperature control to desired setting.
Note:
If the unit is equipped with modulating gas heat, the discharge air
setpoint will also need to be set before the initial setup is complete.
11. If the appliance does not operate, follow instructions in “To Turn Off Gas
To The Appliance” below and call your service technician or gas supplier.
To Turn Off Gas To The Appliance
1. Set the temperature control to lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Remove the access panel that contains the following label:
4. Turn the gas control knob clockwise or flip the toggle switch to the “OFF”
position.
Note:
Some valves require the knob to be pushed in slightly before turning.
Do not force.
WARNING
Risk of Fire or Explosion!
Use only your hand to push in or turn the gas control knob. Never use
tools. If the knob does not push in or turn by hand, don’t try to repair it; call
a qualified service technician.
Failure to follow instructions could result in death or serious injury.
REMOVE THIS PANEL
TO GAIN ACCESS
TO THE GAS VALVE
5. Replace panel removed in
Step 3
.
