Carrier 58MCB User's Information Manual

Also see for 58MCB: Service and maintenance instructions Owner's manual Service and maintenance instruction Nstallation, start-up, and operating instructions Installation, start-up, and operating instructions

Contents

Carrier 58MCB User's Information Manual Manual pdf 3 page image

3FURNACE COMPONENTSCombustion-air intake connection to ensure contami-nant-free air (right or left side).Burner sight glass for viewing burner flame.Burner assembly (inside). Operates with energy-savinginshot burners and hot surface igniter for safe,dependable heating.Redundant gas valve. Safe and efficient. Features 1 gascontrol with 2 internal shutoff valves. Valve appearancevaries with furnace model.Vent outlet. Uses PVC pipe to carry flue gas from the fur-nace’s combustion system (right or left side).Inducer motor. Pulls hot flue gases through the heat ex-changers, maintaining negative pressure for added safety.Blower access panel safety interlock switch.Air filter and retainer (location in furnace may vary).Condensate drain connection. Collects moisture con-densed from burned gases for disposal into home drainsystem. (Location in furnace varies.)123456789need art3MODELS 58MCB, 58MXB, AND 58MTBFURNACES (UPFLOW POSITION)Heavy-duty blower. Circulates air across the heat ex-changers to transfer heat into the home.Secondary condensing heat exchanger (inside). Wringsout more heat through condensation. Constructed withpolypropylene-laminated steel to ensure durability.Primary serpentine heat exchanger (inside). Stretches fueldollars with the S-shaped heat-flow design. Solid con-struction of corrosion-resistant aluminized steel means re-liability.Furnace control board.3-amp fuse provides electrical and component protection.Light emitting diode (LED) on furnace control board.Status code light is for diagnosing furnace operation andservice requirements.Pressure switch(es) ensure adequate flow of flue gasthrough furnace and out vent system.Rollout switch (manual reset) to prevent overtemperature.Junction box for 115-v electrical power supply. (May belocated on right or left side)Transformer (24v) behind furnace control board pro-vides low-voltage power to furnace control board andthermostat.10111213141516171819810516961154 182 1731271141513198 1051514131691152 17341218617194MODEL 58MVBFURNACE (UPFLOW POSITION)