Carrier 58CTA Installation And Service Instructions Manual

Also see for 58CTA: Product data Installation, start-up, operating and service and maintenance instructions

Carrier 58CTA Installation And Service Instructions Manual Manual pdf 35 page image

the preferred method is to use a hammer and screwdriver to strikea sharp blow (See Fig. 50.) directly to the knockout tie points oruse a hammer in the upper left corner of the desired knockout. (SeeFig. 51.) Remove all burrs and sharp edges.BURN HAZARDVent pipe is HOT and may cause personal injury. Hot ventpipe is within reach of small children when installed indownflow position.See the following instruction.An accessory Vent Guard Kit, KGAVG0101DFG is REQUIREDfor downflow applications for use where the vent exits through thelower portion of the furnace casing door. Refer to the Vent GuardKit Instructions for complete details.The horizontal portion of the venting system shall slope upwardsnot less than 1/4-in. per linear ft (21 mm/m) from the furnace to thevent and shall be rigidly supported every 5 ft or less with metalhangers or straps to ensure there is no movement after installation.SIDEWALL VENTINGThis furnace is not approved for direct sidewall horizontal venting.In the U.S.: Per section 10.3.4 of the NFGC, any listed mechanicalventer may be used, when approved by the authority havingjurisdiction.In Canada: Per section 7.24.2 of the NSCNGPIC, any listedmechanical venter may be used, when approved by the authorityhaving jurisdiction.Select the listed mechanical venter to match the Btuh input of thefurnace being vented. Follow all manufacturer’s installation re-quirements for venting and termination included with the listedmechanical venter.START-UP, ADJUSTMENT, AND SAFETY CHECKStep 1—GeneralFIRE HAZARDFailure to follow this warning could result in a fire and leadto property damage, personal injury or death.This furnace is equipped with manual reset limit switches inthe gas control area. The switches open and shut off power tothe gas valve if a flame rollout or overheating conditionoccurs in the gas control area. DO NOT bypass the switches.Correct problem before resetting the switches.1. Maintain 115-v wiring and ground. Improper polarity willresult in rapid flashing LED and no furnace operation.2. Make thermostat wire connections at the 24-v terminal blockon the furnace control. Failure to make proper connectionswill result in improper operation. (See Fig. 22.)3. Gas supply pressure to the furnace must be greater than 4.5-in.wc (0.16 psig ) but not exceed 14-in. wc (0.5 psig ).CUT HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care andwear appropriate protective clothing, safety glasses andgloves when handling parts and servicing furnaces.4. Check all manual-reset switches for continuity.5. Install blower compartment door. Door must be in place tooperate furnace.6. Setup switch descriptionsThe 2 stage furnace has DIP switches used to select thermostatstaging and blower off delay timings.For switch locations on Furnace control board, See Fig. 32 and56.7. Setup switch descriptions - See Table 8.Step 2—Start-Up ProceduresFIRE AND EXPLOSION HAZARDFailure to follow this warning could cause property damage,personal injury, or death.Never purge a gas line into a combustion chamber. Never usematches, candles, flame, or other sources of ignition for thepurpose of checking leakage. Use a soap-and-water solutionto check for leakage.1. Purge gas lines after all connections have been made.→ Fig. 50—Hammer and Screwdriver Used forKnockoutA04130→ Fig. 51—Remove Knockout with HammerA0413133→→→