Carrier Heat Exchanger Replacement

Below is the procedure of Heat exchanger replacement for Carrier Furnace.

Expanded view of Heat System Components

Heating system

STEP 1

Furnace with Faulty Heat Exchanger (Inspection by certified Technician)

Faculty Heat exchanger
Burners
Inducer moter

STEP 2

Removal of all components- Burners, Inducer Motor, Pressure switches, Control board, Harness, Gas valve, Blower motor, Inlet panel, High limit switch, J-box, Drain connections, Flame Sensor, Hot Surface Igniter

Factory burner
Drainer

STEP 3

Empty Shell of Furnace

Empty shells
Empty shells
Empty shells
Primary cells

STEP 4

Pulling out complete Primary Cells & Secondary Heat Exchanger Assembly

Heat exchanger

STEP 5

Dismantling of Primary Cell Inlet panel, Coupling box, Cold spot baffle & Secondary Condensing Heat Exchanger

Primary cells
Coupling box
Cold spot
Secondary Condensing
Heat Exchnager
Outlet Panel

STEP 6

Assembling Primary cells with Inlet and Outlet Panel with new Gasket.

GasKit

STEP 7

Assembling Secondary Heat Exchanger with Inlet panel

Heat Exchnager

STEP 8

Re-Installation of new Cold spot baffle and Coupling box between Primary cells outlet & Secondary Heat exchanger inlet with new Gaskets & Sealant.

Cold Spot
Coupling Box
Primary Cells
Complete Heat Exchanger Facility

STEP 9

Complete Heat exchanger assembly to be placed inside Furnace upper cabinet with proper alignment, secure with screws and sealent

Secure Alignment

STEP 10

Re-installation of all Components previously removed – Burners, Inducer Motor, Pressure switches, Control board, Harness, Gas valve, Blower motor, Inlet panel, High limit switch, J-box, Drain connections, Flame sensor, hot surface igniter

Inducer Moter
Pressure switches

STEP 11

Commissioning and testing of Furnace