Gas heating section startup and shutdown – Bryant PAYNE 579C User Manual

Page 3

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Gas Heating Section Startup and Shutdown

You may be required to, or want to, turn off your gas heating
section for one of two reasons: a suspected malfunction has
occurred, or the heating season has ended.

Proceed as follows to shut down the gas heating section:

Step 1— Set your conditioned space thermostat to the lowest

temperature setting and set SYSTEM switch to
OFF.

Step 2— Remove lower heating section access panel to your

unit. See Figure 1.

Step3— Turn manual gas shutoff to OFF position by

placing shut-off lever at right angle to gas line. See
Figure 3.

Step 4

Step 5

Step 6

Step 7

Step 4— Turn OFF the electrical power to your unit.
Step 5— Replace lower heating section access panel.
Step 6— If the unit is being shut down because of a mal

function, call your dealer for service as soon as
possible.

Step 7— If your unit is being shut down because the heating

season has ended, restore electrical power to the
unit to ensure operation of the cooling system
during the cooling season.

The gas heating section of your combination heating/cooling
unit is equipped with automatic intermittent ignition
devices that do not have continuously burning pilot flames.
The pilots are automatically lit by electric sparking devices
each time your conditioned space thermostat “calls for heat.”

See Figure 3.

fflIPiG: i. liever attempt to manually light the

qilots on this unit with a match or any

ather open flame. If the electric
^sparking devices fail to light the

refer to the following shut-

|pwn_ procedures, and calf your

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the instructions on the unit :

bating plate when starting the heat-
_ stion. See Figure 1.

ilfja_suspected malfunction occurs,

PSfeT^hrthe following shutdown pro-

EgBduEe, then caH your dealer for ’
i^ervic~rhrs~s~cr(nras possibleT

Shutting Down Your Gas Heating Section

step 2-

Starting Your Gas Heating Section

NOTE: Be sure air filters are clean and in place. (See

Figure 2 and maintenance section of this manual.)

before attempting to start the gas

agrsfiCtionTiamnianze yourself with all the pro-

it mq^t be followed.

Step 3

Proceed as follows to start your gas heating section:

Step 1— Set your conditioned space thermostat to the lowest

temperature setting and set SYSTEM switch to
HEAT.
Remove lower heating section access panel. See
Figure 1.
Turn manual gas shutoff to OFF position and wait
5 minutes. See Figure 3.

Step 3-

step 4

Step 4— Turn OFF the electrical supply to your unit.
Step 5— After waiting 5 minutes, turn the manual gas shut

off to the ON position.

Step 6— Replace the lower heating section access panel.

Step 7

Step 7— Turn ON the electrical supply to your unit.
Step 8— Set the conditioned space thermostat slightly above

the space temperature to start your unit. The pilot
ignition systems now begin sparking and light the
pilots. After a 40- to 70-second time-delay, the
secondary gas valve and main gas valve-regulator
open. Gas now flows to the burners at a regulated
rate and the ignited pilots light the burners. After
approximately 2 minutes, the blower motor starts.

Step 9— Set the temperature selector on your conditioned

space thermostat to the desired temperature
setting.

__ TNG: ^Г The plots faiFto ignite, the main
meStiirto light, or the blower failsTb come on. shut

yas heating section ]seeTMbbedure_in this

tMd call your dealer for gerviee. .................... .