Start Up/System Performance - Suburban DynaPack S Series Architects And Engineers' Manual

START UP/SYSTEM PERFORMANCE

Suburban DynaPack A&E Manual 07/2019 Rev.6
UNIT START - UP
CAUTION: This furnace is equipped with a direct ignition control. Do not
attempt to manually light the burners.
BEFORE OPERATING, smell all around the appliance area for gas. Be sure to
smell next to the floor because gas is heavier than air and will settle on the
floor. If you smell gas STOP. Open the windows and doors to clear out any gas.
Recheck all gas piping and connections for leaks.
To check the unit operation:
1. Make sure the gas valve is switched ON. Remove the gas compartment
door. Turn the gas valve knob or move the switch to the ON position.
. Do not use any tools to turn the knob. If you are unable to
See Figure 20
push in and turn the knob by hand then call a qualified service
technician for assistance. Replace the gas compartment door.
2. Turn on electrical power to the unit.
3. Switch the room thermostat to heat.
4. Raise the set point to above the room temperature.
5. The thermostat will call for heat and the combustion blower will begin
to operate.
6. The combustion blower will operate for 15 to 20 seconds before the
ignition controls begin sparking, then the gas valve will open and the
burners will light. The burners can be viewed through the sight glass in
the door panel.
7. The room air blower starts 30 seconds after the burners light.
8. Once the room reaches the set temperature, the burners turn off and the
room air blower turns off 90 seconds later.
9. Switch the room thermostat over to cooling.
10. Lower the set point to below the room temperature.
11. After a slight delay the room air blower will begin to run and the
compressor will start. NOTE: There will be a 5 minute delay in the
compressor starting if the thermostat set point was raised and then
lowered again.
12. Once the room reaches the set temperature, the compressor will turn
off and the room air blower will turn off 30 seconds later.
30
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