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6. The gas-valve actuator slowly modulates open or closed in response to the heat load required
7. Complete the start-up checklist and send a copy as directed to Trane to validate the warranty.
Normal Shutdown
When the system no longer requires heat, the temperature control system opens the heat start
contacts. The pilot valve (3:1, 10:1 turndown burners), modulating gas valve (20:1 turndown
burners), automatic gas valve/regulator, redundant automatic gas valve, and combustion blower
motor immediately de-energize, shutting down the heating system.
The air-handling unit fan should run for a minimum of three to ten minutes after heater shutdown
to cool the heat exchanger.
Seasonal Startup/Shutdown
Important: This procedure should be performed by a qualified technician who is experienced in
Note: The following recommended procedures for seasonal shutdown and startup are important
Recommendations for Seasonal Shutdown
When heating system is to be shut down for extended period of time:
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Recommendations for Seasonal Startup
When heating system is to be started for first time in the season:
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CLCH-SVX08A-EN
in the building.
the servicing of gas heating equipment.
to maintaining your equipment in proper working order.
Disconnect the main power to the heating module/section.
Open the manual disconnect switch in the control panel.
Close all manual valves in the gas line.
Disconnect electrical power.
If the heat exchanger does not have a p-trap and condensate drain line, connect a hose to the
drain valve and drain any accumulated condensate.
Check all electrical terminals for tight connections.
Open all manual gas valves and ensure that these valves operate freely.
Check the air shutter and modulating gas valve linkages for tightness.
Clean dust, dirt, and debris from the air shutters on the combustion fan and the air inlet louver.
Check the exhaust flue for debris and clean as necessary.
Re-connect the power and initiate the startup sequence.
Operation
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