Carrier 58HDV Final Gas Piping Check, Power Supply Wiring, Junction Box J- Box Relocation

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1.11″ (28.2mm)

Measure from face of ori- fice to the back side of the manifold.

ELECTRICAL WIRING

1.21″ (30.8mm)

A07725

Fig. 39 - Changing Orifices

5.Reinstall manifold. Ensure burners do NOT bind on new orifices.

Final Gas Piping Check

1.The furnace and the equipment shut off valve must be disconnected from the gas supply piping system during any

pressure testing of that system at test pressures in excess of 1/2″ PSIG. Close the manual shut-off valve before testing at such pressures.

2.The furnace must be isolated from the gas supply system by closing the equipment shut off valve during any pressure

testing of the gas supply system at test pressure equal to or less than 1/2″ PSI.

3.When installation is complete, test all pipe connections for leaks with the gas pressure less than 1/2″ PSIG to the gas valve.

4.Apply a commercial soap solution to all joints to test for leaks. Correct any leaks indicated by bubbles.

5.Correct even the smallest leak at once.

6.Check for leaks at gas valve and orifice connections to the burner manifold along with the pilot tube connections to the valve and pilot assembly while the furnace is operating.

!WARNING

FIRE OR EXPLOSION HAZARD

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

Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections. A fire or explosion could result causing property damage, personal injury and/or loss of life.

!AVERTISSEMENT

RISQUE D‘INDENDIE OU D‘EXPLOSION

Le non-respect des avertissements de sécurité pourrait d‘entrainer des blessures graves, la mort ou des dommages matériels.

Ne jamais utiliser une flamme nue por vérifier la présence des fuites de gaz. Pour la vérification de tous les joints, utiliser plutôt une solution savonneuse commerciale fabriquée spécifiquement pur la détection des fuites de gaz. Un incendie ou une explosion peut entrainer des dommages matériels, des blessures ou la mort.

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury or death.

Turn OFF electrical power at fuse box or service panel before making any electrical connections and ensure a proper ground connection is made before connecting line voltage.

Power Supply Wiring

The furnace MUST be electrically wired and grounded in accordance with local codes, or in the absence of local codes with the latest edition of The National Electric Code, ANSI NFPA 70 and/or The Canadian Electric Code CSA C22.1.

Field wiring connections must be made inside the furnace connection box. A suitable strain relief should be used at the point the wires exit the furnace casing.

NOTE: Furnace will not have normal operation is line polarity is reversed. Check ALL field and control connections prior to operation.

Copper conductors shall be used. Line voltage wires should conform to temperature limitation of 35° C rise and be sized for the unit maximum amps stated on the rating plate. Add the full load amps for potential field-installed accessories such as electronic air cleaners and humidifiers that would receive power from the furnace control board. The furnace control board is rated for a maximum of

1.0amps combined for EAC and HUM. Consult NEC or local codes for proper wire and circuit sizing.

Junction Box (J- Box) Relocation

The J-Box is installed on left side of casing. An alternate J-Box location on right side can be used.

1.Remove bag containing two hole plugs and two self tapping screws from loose parts bag in blower compartment.

2.Remove two screws holding J-Box to casing.

3.Install large hole plug from loose furnace accessory bag into the left J-Box location.

4.Clip wire tie holding J-Box wires.

5.Move J-Box to alternate location and attach using two self tapping screws from bag.

6.Apply two hole plugs from bag at left J-Box location.

Thermostat

Heating

The two-stage furnace control board will operate with either a single stage or a two-stage heating thermostat and will provide two-stage heating operation.

For single-stagethermostat installations, the R and W wires from the thermostat connect to the R and W1 connections on the furnace control board. (See Fig. 40and wiring diagram)

NOTE: The TT (Thermostat Type) SW1 DIP switch #3 should be in the OFF position for the furnace to operate properly with a single-stage thermostat. Failure to change DIP switch with single-stage thermostat will result in Low Heat operation ONLY.

During operation, the furnace will operate on Low Heat for up to12 minutes. If the heat request exists for more than 12 minutes, the furnace will automatically shift to the High Heat mode for the remaining duration of the heating cycle.

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Contents Installation Instructions Required Notice for Massachusetts Installations CUT Hazard Furnace Reliability HazardFIRE, EXPLOSION, and Asphyxiation Hazard Winter Shutdown Frozen Water Pipe HazardWater Damage to Property Hazard Installation Requirements Installation PositionsLocation and Clearances Carbon Monoxide Poisoning HazardHorizontal Furnace Installation Furnace Installation ConsiderationsCondensate Trap and Drain Lines LevelingDimensions and Clearances Knock Outs Air Openings and Connecting DuctsOutdoor Combustion Air Method Requirements Confined Space InstallationIndoor Combustion Air Unconfined Space Venting and Combustion Air Check Ventilation AirMake the Following Check Dual Certified Direct or Non- Direct Vent For Two Pipe Installation Direct VentContaminated Combustion Air Sizing Combustion Air and Vent Pipe Combustion Air and Vent Piping Insulation GuidelinesSingle Piping only Vent Termination ClearancesDirect Vent Termination Clearance Other than Direct Vent Termination Clearance Frozen and Burst Water Pipe Hazard Condensate Drain TrapOnly Upflow Installations Top Vent See FigSide View Upflow Installations Vent through Left-Side See FigPVC All Models Vent through Right-Side See FigExhaust Downflow Left-Side Vent and Trap See FigDownflow Right-Side Vent and Trap Downflow Right-Side Vent and Trap See FigExhaust Horizontal Left through Top See FigInlet Horizontal Left-Side Vent See FigHorizontal Right through Top Horizontal Right through Top See FigExhaust Horizontal Right-Side Vent See FigCombustion Air Pipe Connection Direct Vent Connecting Vent and Combustion Air PipingVent Pipe Connection Joining Pipe and Fittings Connecting Vent Pipes and TerminationHorizontal Termination Vertical Termination Using Exterior RisersVent Termination Shielding Multi Vent Termination ClearancesConcentric Vent and Combustion-Air Vertical & Horizontal Termination Concentric Vent TerminationCarbon Monoxide POISONING, Fire and Explosion Hazard 40,000, 50,000, 60,000, & 75,000 Btuh Furnaces Gas Supply Requirements Gas Piping RequirementsFire and Explosion Hazard Fire HazardTypical Gas Piping for Upflow Electrical Operation HazardPropane Conversion High Altitude Air Pressure SwitchGeneral Derating Rules Additional Propane Connection RequirementsElectrical SHOCK, Fire or Explosion Hazard Changing Orifices for High AltitudeFinal Gas Piping Check Power Supply WiringJunction Box J- Box Relocation Thermostat HeatingOptional Equipment CoolingFurnace Control Fuse Tap Select Interface BoardConnections InstallationSizing InsulationFilters Filter Installation using Filter RackAddition Of Air Conditioning Subbase for Combustible Floor Combustible Floor InstallationStartup Manifold Gas Pressure AdjustmentsGas Supply Pressure Natural Gas Input Rating Check Temperature Rise CheckMain Burner Flame Check Continuous- Fan using G Blower AdjustmentsHard Wired Continuous Fan Operation Changing Blower SpeedOn = OFF = High Cooling Y1 & Y/Y2 or Y/Y2 Request Low Cooling Y1 RequestContinuous Circulating Fan G Request Heating Request with Gas Shut Off Furnace Control Board Diagnostic Codes See FigWiring Diagram Thermostat Wiring Guide No Connection SINGLE-STAGE Thermostat TWO-STAGE Catalog No 58HDV---01SI
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