9
These 90% Condensing Gas
Furnaces are design-certified by CSA
for use with natural and propane
gases as follows:
1. As non-direct vent central forced
air furnaces taking combustion
air from the installation area or
using air ducted from the outside.
2. As direct vent central forced air
furnaces with all combustion air
supplied directly to the furnace
burners through a special air
intake system outlined in these
instructions.
Install this furnace in accordance with
the American National Standard
Z223.1 – latest edition entitled
“National Fuel Gas Code” (NFPA54)
and requirements or codes of the
local utilities or other authorities
having jurisdiction. This is available
from the following:
National Fire Protection
Association, Inc.
Batterymarch Park
Quincy, MA 02269
CSA-INTERNATIONAL
8501 East Pleasant Valley Road
Cleveland, Ohio 44131-5575
Install units in Canada in accordance
with CSA-B149, local installation
codes and authorities having
jurisdiction. CSA-B149 is available
from:
CSA-INTERNATIONAL
178 Rexdale Blvd.
Toronto, Ontario
Canada M9W, 1R3
GENERAL INFORMATION
FIGURE 1
UPFLOW FURNACE
FIGURE 2
DOWNFLOW/HORIZONTAL FURNACE
ITEM
ITEM
NO.
PART NAME
NO.
PART NAME
1
INDUCED DRAFT BLOWER
14
LOW VOLTAGE TERMINAL (THERMOSTAT)
2
CAPACITOR
15
TRANSFORMER
3
INLET AIR CHASE
16
PRESSURE SWITCH
4
DOOR SWITCH
17
OUTLET AIR PIPE
5
JUNCTION BOX
18
GAS VALVE
6
INLET PIPE CONNECTOR
19
CONNECTOR
7
TOP PLATE
20
EXHAUST TRANSITION
8
CONTROL MOUNTING PLATE
21
CONDENSATE TRAP
9
AUXILIARY LIMIT
22
IGNITER (HSI)
10
SHIPPING PLUG
23
MANIFOLD
11
EXHAUST CONNECTION
24
OVERTEMPERATURE SWITCH
12
BLOWER
25
ROLLOUT SWITCH
13
EXHAUST PIPE EXTENSION
26
FLAME SENSOR
27
BURNER
ITEM
ITEM
NO.
PART NAME
NO.
PART NAME
1
CONDENSATE TRAP
13
TOP PLATE
2
DOOR SWITCH
14
BURNER
3
JUNCTION BOX
15
IGNITER (HSI ONLY)
4
TRANSFORMER
16
COMBUSTION AIR INLET
5
BLOCKED DRAIN PRESSURE SWITCH
17
GAS VALVE
6
MAIN PRESSURE SWITCH
18
INDUCED DRAFT BLOWER
7
EXHAUST TRANSITION
19
CAPACITOR
8
CONNECTOR
20
LOW VOLTAGE (THERMOSTAT)
9
OUTLET AIR PIPE
TERMINAL
10
SHIPPING PLUG
21
CONTROL MOUNTING PLATE
11
FLAME SENSOR
22
BLOWER
12
OVERTEMPERATURE SWITCH
I409
I409