The (-)GRC and (-)GTC series
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.
6
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
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