Instruction d'utilisation Carrier COMFORTLINK P3

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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.
DANGER
1. Do not turn off the electrical power to unit without
WARNING: If the information in this
first turning off the gas supply.
manual is not followed exactly, a fire or
2. Before attempting to start the gas heating section,
explosion may result causing property
familiarize yourself with all the pro

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LIMIT SWITCH NO. 2 LIMIT FLUE SWITCH OUTLET NO. 1 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 NOTE: High heat consists of sections 1-3. Low heat consists of of section 1 only. sections 1 and 2 only. 030-050 SIZES 055-100 SIZES LOW HEAT Fig. 1 — Heat Section Details a48-8445b a48-8445a 10. Using the scrolling marquee, enable

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MAIN MODE ON Run Status Service Test Temperature Pressures Setpoints Inputs Alarm Status Outputs Configuration ESCAPE ENTER Time Clock Operating Modes Alarms OFF STEP 1 STEP 2 STEP 3 a48-8297 STEP 5 STEP 4 a48-8298 STEP 6 STEP 7 MODE Run Status Service Test Temperature Pressures Setpoints Alarm Status Inputs Outputs Configuration ESCAPE ENTER Time Clock Operating Modes Alarms STEP 8 STEP 9 STEP 10 Fig. 2 — To Light Unit 3 LOCK-OUT TAG

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For your safety, keep the gas heating area clear and free of TO SHUT UNIT OFF combustible materials, gasoline, and other flammable liquids and vapors. WARNING To ensure proper functioning of the unit, flow of combus- 1. Do not turn off the electrical power to unit without tion and ventilating air must not be obstructed from reaching first turning off the gas supply. the gas heating area. Clearance of at least 4 ft on all sides is 2. Never attempt to manually light the main burners on required. u

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When replacing your unit filters, always use the same size Heat Exchanger — To ensure dependable and efficient and type of filter that was originally supplied by the installer. heating operation, the heat exchanger should be checked by a qualified maintenance person before each heating season, and Units with outdoor air capability have a cleanable filter for cleaned when necessary. This checkout should not be attempt- the outdoor air. This filter should be checked annually and ed by anyone not h

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POWER EXHAUST GAS SECTION ACCESS CONTROL ACCESS DOOR ACCESS DOOR DOORS BOX (TYP BOTH SIDES) GAS POWER AIR FILTER BURNERS EXHAUST HOODS ACCESS OPTION DOOR a48-8447 48P2,P3,P4,P5030,035 (SIZE 030 SHOWN) ACCESS CONTROL POWER EXHAUST GAS SECTION DOORS ACCESS DOOR BOX ACCESS DOOR (TYP BOTH SIDES) FILTER POWER GAS AIR ACCESS EXHAUST HOODS BURNERS a48-8448 DOOR OPTION 48P2,P3,P4,P5040-070 (SIZE 060 SHOWN) ACCESS DOORS POWER EXHAUST GAS SECTION CONTROL ACCESS DOOR ACCESS DOOR BOX (TYP BOTH SIDES) FILTER

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normal time sequence. This delayed ignition is characterized Fan and Belts — Periodically check the condition of fan by an especially loud sound. wheels and housings and belt tension. When service is neces- sary, 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 recommended. Bearings will not require lubrication for at least during heating, shut down the heating section and ca

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REGULAR DEALER MAINTENANCE BEFORE YOU CALL FOR SERVICE, CHECK FOR SEVERAL EASILY SOLVED PROBLEMS In addition to the type of routine maintenance you might be willing to perform, your unit should be inspected regularly by a If insufficient heat or cooling is suspected: properly trained service technician. An inspection (preferably ( ) Check for sufficient airflow. Check the air filters for dirt. each year, but at least every other year) should include the Check for blocked return-air or supply-air