Step 8 — Remove lockout tag and turn on the electrical supply to unit.

Step 9 — Open the external gas pipings manual shut off valve located outside the unit.

Step 10 — Set room thermostat temperature selector slightly above room temperature and set system switch to HEAT position to start the unit. The induced-draft combustion air fan will start. Main burners light within 30 seconds. Indoor blower will start within a few seconds of main gas ignition.

Step 11 — Set the temperature selector on room thermostat to desired setting.

 

COMBUSTION

 

FAN HOUSING

HEAT

INDUCED

EXCHANGER

DRAFT

SECTION

MOTOR

 

IGC BOARD

MAIN GAS

VALVE

(HIDDEN)

 

 

MAIN BURNER

 

SECTION

C07259

Fig. 1 - Typical Gas Heating Section

!WARNING

FIRE, EXPLOSION HAZARD

Failure to follow this warning could result in personal injury, death, and/or property damage.

If the main burners fail to light, or the blower fails to come on, shut down gas heating section and call your dealer for service.

TO LIGHT UNIT

(UNITS WITH COMFORTLINK

CONTROL)

!DANGER

FIRE, EXPLOSION HAZARD

Failure to follow this warning could result in personal injury, death, and/or property damage.

1.Do not turn off the electrical power to unit without first turning off the gas supply and apply lockout tags.

2.Before attempting to start the gas heating section, familiarize yourself with all the procedures that must be followed.

3.Never attempt to manually light the burners on the unit with a match, lighter, or any other flame. If the electric sparking device fails to light the burners, refer to the shutdown procedures, then call your dealer as soon as possible.

3

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Carrier 48HG14---28, 48PM16---28, 48PG20---28 To Light Unit Units with Comfortlink Control, Typical Gas Heating Section

48HG14---28, 48HJ20---28, 48PG20---28, 48PM16---28 specifications

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