Gas Heater User Manual

ManualsBrandsCarrier ManualsGas HeaterCOMFORTLINK P5030-100

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53480054-01 Printed in U.S.A. Form 48P-1SO Pg 1 4-09 Replaces: New

User’s Information Manual

NOTE TO INSTALLER:

This manual should be left with the equipment owner.

Your combination heating/cooling rooftop unit is equipped

with an automatic direct spark ignition system and induced-

draft power combustion blower.

TO LIGHT UNIT

See Fig. 1 for location of gas valve(s). Refer to Fig. 2 while

proceeding with the following steps.

1. Turn off the unit demand for cooling or heating by using

the scrolling marquee. The scrolling marquee is located in

the control box at the compressor end of the unit.

a. Push the key unit a blank display screen

is shown.

b. Push the key until the SERVICE TEST LED is

lit.

c. Push the key. The display will show

STOP.

d. Push the key again. The NO/YES display

will flash.

e. Push the or key to toggle the display to

YES and then push . The unit will be

locked off from heating, cooling or any operation.

The controls will still function and the display will

still operate.

2. Close the field-installed manual gas shutoff valve.

3. Turn off the electrical power to the unit using the optional

disconnect or the field-installed disconnect and lock off

using proper lockout and tag-out procedures.

4. Open the burner section hinged access door.

5. Move the switch on the gas valves to the OFF position

and wait 5 minutes.

NOTE: If this is the first installation of the unit, the gas

flue hoods must be installed before operating unit. These

must be installed for the unit to run properly.

6. Move the switch on the gas valves to the ON position.

7. Close the burner section hinged access door.

8. Turn on the electrical supply to the units.

9. Open the field-installed manual gas valve.

WARNING: If the information in this

manual is not followed exactly, a fire or

explosion may result causing property

damage, personal injury or loss of life.

— Do not store or use gasoline or other

flammable vapors and liquids in the

vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch;

do not use any phone in your

building.

• Immediately call your gas supplier

from a neighbor’s phone. Follow the

gas supplier’s instructions.

• If you cannot reach your gas sup-

plier, call the fire department.

— Installation and service must be per-

formed by a qualified installer, service

agency or the gas supplier.

WARNING

Improper installation, adjustment, alteration, ser-

vice or maintenance can cause injury or property

damage. Refer to this manual. For assistance or

additional information consult a qualified installer,

service agency, or the gas supplier.

WARNING

Before performing recommended maintenance, be sure

main power switch to unit is turned off and lockout tag is

installed. Electrical shock could cause personal injury.

WARNING

Burners will light automatically. Do not attempt to light by

hand; personal injury may result.

DANGER

1. Do not turn off the electrical power to unit without

first turning off the gas supply.

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.

If you do not follow these instructions exactly, a fire or

explosion may result, causing property damage, injury, or

loss of life.

ESCAPE

ENTER

48P2,P3,P4,P5030-100

Gas Heating/Electric Cooling Units

with COMFORTLINK™ Controls

Summary of content (8 pages)

PAGE 1
48P2,P3,P4,P5030-100 Gas Heating/Electric Cooling Units with COMFORTLINK™ Controls User’s Information Manual NOTE TO INSTALLER: TO LIGHT UNIT This manual should be left with the equipment owner. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
PAGE 2
LIMIT SWITCH NO. 2 LIMIT SWITCH NO. 1 FLUE OUTLET SECTION 2 FLUE OUTLET FLUE OUTLET SECTION 2 SECTION 1 GAS VALVE GAS VALVE GAS VALVE FLUE OUTLET SECTION 1 LIMIT SWITCH NO. 2 GAS VALVE LIMIT SWITCH NO. 1 NOTE: High heat consists of sections 1 and 2. Low heat consists of section 1 only. NOTE: High heat consists of sections 1-3. Low heat consists of sections 1 and 2 only. 030-050 SIZES 055-100 SIZES LOW HEAT Fig. 1 — Heat Section Details a48-8445b a48-8445a 10.
PAGE 3
MAIN MODE ON Run Status Service Test Temperature Pressures Setpoints Alarm Status Inputs Outputs Configuration Time Clock ESCAPE ENTER Operating Modes Alarms OFF STEP 1 STEP 2 LOCK-OUT TAG STEP 3 a48-8297 STEP 5 STEP 4 a48-8298 STEP 6 STEP 7 MODE Run Status Service Test Temperature Pressures Setpoints Inputs Alarm Status Outputs Configuration Time Clock ESCAPE ENTER Operating Modes Alarms STEP 8 STEP 9 STEP 10 Fig.
PAGE 4
For your safety, keep the gas heating area clear and free of combustible materials, gasoline, and other flammable liquids and vapors. To ensure proper functioning of the unit, flow of combustion and ventilating air must not be obstructed from reaching the gas heating area. Clearance of at least 4 ft on all sides is required. TO SHUT UNIT OFF WARNING 1. Do not turn off the electrical power to unit without first turning off the gas supply. 2.
PAGE 5
When replacing your unit filters, always use the same size and type of filter that was originally supplied by the installer. Units with outdoor air capability have a cleanable filter for the outdoor air. This filter should be checked annually and cleaned as necessary. Remove by removing screws in outdoorair filter retainer and sliding filters out of the unit.
PAGE 6
POWER EXHAUST ACCESS DOOR (TYP BOTH SIDES) POWER EXHAUST OPTION GAS SECTION ACCESS DOOR ACCESS DOORS AIR HOODS FILTER ACCESS DOOR CONTROL BOX GAS BURNERS a48-8447 48P2,P3,P4,P5030,035 (SIZE 030 SHOWN) ACCESS DOORS POWER EXHAUST ACCESS DOOR (TYP BOTH SIDES) POWER EXHAUST OPTION FILTER ACCESS DOOR GAS SECTION ACCESS DOOR AIR HOODS GAS BURNERS CONTROL BOX a48-8448 48P2,P3,P4,P5040-070 (SIZE 060 SHOWN) ACCESS DOORS POWER EXHAUST ACCESS DOOR (TYP BOTH SIDES) POWER EXHAUST OPTION FILTER ACCE
PAGE 7
normal time sequence. This delayed ignition is characterized by an especially loud sound. Fan and Belts — Periodically check the condition of fan wheels and housings and belt tension. When service is necessary, call your dealer. CAUTION Evaporator-Fan Motor, Condenser-Fan Motor and Combustion-Fan Motor — Lubrication is not If your unit makes any unusual or especially loud noises during heating, shut down the heating section and call your dealer. recommended.
PAGE 8
REGULAR DEALER MAINTENANCE In addition to the type of routine maintenance you might be willing to perform, your unit should be inspected regularly by a properly trained service technician. An inspection (preferably each year, but at least every other year) should include the following: 1. Inspection of all flue product passages — including the burners, heat exchanger, flue collector box, and vent pipe. 2. Inspection of all combustion-air and ventilation-air passages and openings. 3.