Unit Start-Up
RT-SVX21P-EN 55
Electromechanical Control. Using the ServiceTest
Guide perform the proper test mode connections.
When starting the unit for the first time or servicing the
heaters, it is a good practice to start the heater with the
main gas supply turned “Off”.
Once the ignition system and components have been
checked, open the main power disconnect switch to reset
the unit.
Final System Setup
After completing all of the pre-start and start-up
procedures outlined in the previous sections (i.e.,
operating the unit in each of its Modes through all
available stages of cooling & heating), perform these final
checks before leaving the unit:
• Program the Night Setback (NSB) panel (if applicable)
for proper unoccupied operation. Refer to the
programming instructions for the specific panel.
• Verify that the Remote panel “System” selection
switch, “Fan” selection switch, and “Zone
Temperature” settings for automatic operation are
correct.
• Inspect the unit for misplaced tools, hardware, and
debris.
• Verify that all exterior panels including the control
panel doors and condenser grilles are secured in place.
• Close the main disconnect switch or circuit protector
switch that provides the supply power to the unit’s
terminal block or the unit mounted disconnect switch.
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