ST-A1220-16-00
1.) DOOR SWITCH
2.) TRANSFORMER
3.) JUNCTION BOX
4.) LOW VOLTAGE TERMINAL
5.)HEAT ASSISTED LIMIT CONTROL (HALC)
6.) SOLID METAL BASE PAN
7.) FURNACE CONTROL
8.) CONTROL MOUNTING PLATE
9.) CAPACITOR
10.) BLOWER
11.) IGNITER
12.) GAS VALVE
13.) INDUCED DRAFT BLOWER
14.) 4” FLUE ADAPTER (OPTIONAL)
15.) COMBUSTION AIR INLET
16.) MAIN LIMIT
17.) COMBUSTION AIR DIFFUSER
18.) PRESSURE SWITCHES,
HIGH AND LOW STAGE
19.) OVER TEMPERATURE SWITCH
20.) BURNER
21.) FLAME SENSOR
1
15
16
17
18
19
20
21
2
3
4
5
6
7
8
9
10
11
12
13
14
3
Ge
ne
ral
Inf
orm
atio
n
GENERAL INFORMATION
NOTE:
A heat loss calculation should be performed to properly
determine the required furnace BTU size for the structure. Also,
the duct must be properly designed and installed for proper air-
flow. Existing ductwork must be inspected for proper size and to
make sure that it is properly sealed. Proper airflow is necessary
for both user comfort and equipment performance.
Before opening the furnace carton, verify that the data tags on
the carton specify the furnace model number that was ordered
from the distributor and are correct for the installation. If not,
return the unit without opening the carton. If the model number
is correct, open the carton and verify that the furnace rating
label specifies the same furnace model number that is speci-
fied on the carton label. If the model numbers do not match, re-
turn the furnace to the distributor.
IMPORTANT:
Proper application, installation and maintenance of
this furnace and system is a must if consumers are to receive the full
benefits for which they have paid.
The (-)802P/(-)(-)80MDP series furnaces are design certified by
CSA for use with natural and propane gases as follows:
As a Category I furnace, it may be vented vertically with type B-
1 vent pipe and also may be common vented as described in
these instructions.
This furnace should be installed in accordance with the American
National Standard Z223.1 - latest edition booklet entitled “National
Fuel Gas Code” (NFPA 54), and the requirements or codes of the
local utility or other authority having jurisdiction including local
plumbing or waste water codes.
With the introduction of higher efficiency furnaces, special attention
must be paid to the venting system. Only listed venting systems
may be used as stated in the installation instructions and the
Na-
tional Fuel Gas Code, ANSI Z223.1 (NFPA 54),.
Since furnace
technology and venting requirements are changing, awareness of
local, state, and federal codes and industry changes is imperative.
ST-A1220-16
FIGURE 1
FURNACE COMPONENTS
