Heating System Shutdown - Trane Precedent YSJ072 Installation, Operation And Maintenance Manual

Gas Heat Operation and Maintenance
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious
injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by
Trane or others, refer to the appropriate
manufacturer's literature for allowable waiting periods
for discharge of capacitors. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
1. Set the thermostat heating adjustment lever to the
lowest setting.
2. Flip the selector switch OFF.
3. Turn off all electric power to the unit.
WARNING
Risk of Burn!
Failure to follow instructions could result in serious
injury.
NEVER attempt to manually light the burner.
4. This unit is equipped with an ignition device which
automatically lights the burners.
5. Remove the access panel that contains the following
label:
Figure 78. Label
6. Flip the ON/OFF switch OFF.
Note: Some valves require the knob to be pushed in
slightly before turning.
70
WARNING
Hazard of Explosion or Fire!
Failure to follow instructions could result in death or
serious injury and equipment or property damage.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
IF YOU SMELL GAS, follow instructions below:
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Open windows and doors.
• Alert others and evacuate building immediately.
• From a phone outside of the building,
immediately call your gas supplier. Follow the
gas supplier's instructions. If you cannot reach
your gas supplier, call the fire department.
7. Wait (five) minutes to clear out any gas. If you then
smell gas, STOP and proceed with the instructions as
per above Warning. If you do not smell gas, go to the
next step.
8. Change the ON/OFF switch ON.
9. Replace panel removed in
10. Turn on all electric power to unit.
11. Set thermostat to desired temperature and flip the
selector switch ON. The unit will operate automatically.
12. If the unit will not operate, follow the instructions in
"Turning Off Gas to Unit," p. 71
technician or gas supplier.
Important: The unit should be adjusted to obtain an air rise
specified on the nameplate.

Heating System Shutdown

To shut down the heating system for brief periods of time
slip the thermostat selector switch to the OFF.
NOTICE
Property Damage!
Furnace failure could cause property damage, such
as frozen water pipes.
If the unit is shut down during the cold weather
months, provisions must be taken to prevent freeze-
up of all water pipes and water receptacles. Whenever
your house or building is to be vacant, arrange to
have someone inspect your structure for proper
temperature. This is very important in below-freezing
weather.
Step 5.
and call the service
RT-SVX071D-EN