2
Specifications subject to change without notice.
440 02 7000 02
TABLE OF CONTENTS
WELCOME TO A NEW GENERATION OF COMFORT
2
. . . .
FURNACE COMPONENTS
2
. . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL FURNACE SAFETY
2
. . . . . . . . . . . . . . . . . . . . . . .
IMPORTANT FACTS
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
3
. . . . . . . . . . . . . . . . . . . . . . . . .
BEFORE STARTING YOUR FURNACE
4
. . . . . . . . . . . . . . . . .
STARTING YOUR FURNACE
5
. . . . . . . . . . . . . . . . . . . . . . . . .
Steps for Starting Your Furnace
5
. . . . . . . . . . . . . . . . . . . . . . . .
SHUTTING DOWN YOUR FURNACE
6
. . . . . . . . . . . . . . . . . .
PERFORMING ROUTINE MAINTENANCE
7
. . . . . . . . . . . . .
Filtering Out Trouble
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMBUSTION AREA AND VENT SYSTEM
9
. . . . . . . . . . . .
INSTALLATION DATA
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BEFORE YOU REQUEST A SERVICE CALL
11
. . . . . . . . . . .
REGULAR DEALER MAINTENANCE
11
. . . . . . . . . . . . . . . .
WELCOME TO TODAY’S GENERATION
OF COMFORT
Congratulations! In light of rising energy costs, the WFHR
Multipoise, Fixed
−
Capacity, Direct/Non
−
Direct Vent, Condensing
Gas Furnaces are among the soundest investments today’s
homeowner can make.
Your new furnace is truly a triumph of technology in home
heating. A revolutionary design employs two (2) heat exchangers
to “squeeze” out the maximum amount of heat from the fuel
consumed. In fact, your new furnace is so efficient, over 90%* of
the heat generated during combustion is captured and delivered
inside your home. That is more than a 30%* increase in heating
efficiency over conventional furnaces.
This furnace is among the most energy
−
efficient furnaces you can
buy today. The WFHR is also among the safest and most
dependable. We are proud of the technological advances
incorporated into the design of this furnace. With only minimal
care, your new furnace will deliver many years of money
−
saving
home comfort and enjoyment. Spend just a few minutes with this
manual to learn the operation of your new furnace and the small
amount of maintenance it takes to help keep it operating at peak
efficiency year after year.
* The output capacity and any representations of efficiency for this furnace are based on standard U.S.
Department of Energy test procedures.
GENERAL FURNACE SAFETY
1. Combustible Materials, Gasoline Warning. . . . . . . . . . . . . 1
2. Furnace Must be Kept Free and Clear of Insulating Material
Warning. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Furnace Needs Air for Combustion and Ventilation
Warning . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . 4
4. Starting (Lighting) and Shutting Down the
Furnace Warning .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5, 6
5. Proper Furnace Shutdown Procedures . . . . . . . . . . . . . . . . 6
6. Flood Damage Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 1
7. Fire or Explosion Hazard Warning. . . . . . . . . . . . . . . . . . . 1
8. Carbon Monoxide Warning . . . . . . . . . . . . . . . . . . . . . . . . 1
9. Service and Maintenance Electrical Hazard Warning . . . . . 7
10. Sharp Edges Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
11. No Filter Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
12. Dirt, Rust, or Accumulation Caution . . . . . . . . . . . . . . . . . 9
FURNACE COMPONENTS
(Furnace shown in upflow position; may be used in downflow or
horizontal orientation or applications.)
Figure 1
Furnace shown in upflow position
Air filter and retainer. (Location in furnace may vary.)
Rollout switch (manual reset) to prevent
over temperature.
1
Burner sight glass for viewing burner flame.
2
Burner assembly (inside), operates with en-
ergy
−
saving, inshot burners and hot surface ig-
niter for safe, dependable heating.
3
Combustion
−
air intake connection (right or left
side).
4
Redundant gas valve. Safe and efficient. Features
1 gas control with 2 internal shutoff valves.
5
Junction box for 115
−
v electrical power supply.
6
Vent outlet, uses PVC pipe to carry flue gas from
the furnace’s combustion system (right or left
side).
7
Secondary condensing heat exchanger (inside).
Wrings out more heat through condensation. Con-
structed with polypropylene
−
laminated steel to
ensure durability.
8
Pressure switch ensures adequate flow of flue gas
through furnace and out vent system.
9
Inducer motor. Pulls hot flue gases through the
heat exchangers, maintaining negative pressure for
added safety.
10
Condensate drain connection, collects moisture
condensed from burned gases for disposal into
home drain system. (location in furnace varies)
11
Heavy
−
duty blower, circulates air across the heat
exchangers to transfer heat into the home.
