Component Glossary
7. Ignition Plugs : Unlike a “standing pilot” ignition system, the Combi
utilizes a Direct Spark Ignitor (DSI) ignition system, which contains (2)
metal rods that create a spark when voltage is applied. A third metal
rod is the Flame Rectifier, which confirms the presence of flame when
a flame is created. The Ignitors and Rectifier are attached to the Gas
Burner.
8. Combustion Chamber : The Combustion Chamber is where the (3)
ingredients for combustion (air, fuel, and spark) are introduced to
each other to create a flame at the Gas Burner.
9. Flame Tube with Baffle Plate : A tube that surrounds the flame
created by the Gas Burner. The Baffle Plate assists with redirecting
exhaust air back into the Exhaust Outlet.
5. Combustion Air Motor : A variable speed fan motor tasked with providing
one of the key ingredients for combustion: Air. The Combustion Air Motor pulls
in fresh combustion air from outside through the Wall Cowl and Combustion
Air Inlet tube and pushes exhaust air out of the Exhaust Outlet tube and Wall
Cowl. It will change speeds to match the combustion needs of the Combi.
6. Gas Burner : Part of the Flame Tube, located in the Combustion Chamber in
the center of the Combi and surrounded by the Air Heat Exchanger and Water
Container, the Gas Burner is where flame is created when heating in Gas
mode. The Gas Burner heats both air for warming the indoor living space as
well as domestic water.
5
10. Circulation Air Fan : A 10 speed fan
motor that draws air from within the
living space into the Air Heat
Exchanger where it absorbs heat from
the flame of the Gas Burner before
being distributed throughout the
indoor living space via duct work. The
Circulation Air Fan typically won’t run
when the Combi’s primary focus is to
just heat water and not air to warm the
living space. However, it also operates
as a cooling device in the event of
excessive air and/or water
temperatures.
11
12
7
6
10
11. Air Heat Exchanger : Surrounding the Combustion Chamber and housing the Electric Heating Elements (Plus models
only), the Air Heat Exchanger is where heat from the Gas Burner or Electric Heating Elements is absorbed by the passing
air being moved by the Circulation Air Fan before entering the duct system for distribution within the living space.
12. 120VAC Electric Heating Elements (Plus models only) : Imbedded in the Air Heat Exchanger are (2) 120VAC 850W
Electric Heating Elements. Whether in EL1/MIX1 (850W) or EL2/MIX2 (1700W), both Electric Heating Elements are
energized. In addition to 120VAC Electric Heating Elements, Combi Plus models will also feature a 120VAC PCB and a
NEMA 5-20P outlet plug.
13. Warm Air Outlets : Duct work (65mm) connections to the Combi. (4) Warm Air Outlets altogether, though Combi Eco
models may only utilize (3), with one of the bottom outlets blocked off with a blank cover (34310-02).
To Next Page
Loading...
Need help?
General
