AGAGC9PNS01D Gas Conversion Kit, Propane to Natural: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
12
Two-Stage Gas Valve
A200178
Representative drawing only, some models may vary in appearance.
L14F003
Representative drawing only, some models may vary in appearance.
A221035A
Representative drawing only, some models may vary in appearance.
Fig. 21 – Example of Two-Stage Speed Furnace Control for VCA or
VCT Blower Motor
1. Enable two-stage thermostat on control board by:
a. For boards with DIP switches, turn SW1-2 on furnace control
ON, see
b. For boards with 3 digit display, navigate to (
Htt
) and select
(
2st
. See furnace installation manual for additional
instructions.
2. Jumper R-W/W1 and R-W2 thermostat connections on control.
3. When main burners ignite, confirm inlet gas pressure is between
4.5-in. w.c. and 13.6-in. w.c.
4. Remove jumper across R-W/W1 and R-W2 thermostat connections
to terminate call for heat.
5. Turn furnace gas valve switch to OFF position.
6. Turn gas supply manual shutoff valve to OFF position.
7. Turn off furnace power supply.
8. Remove manometer and on some models remove pressure tap
fitting.
9. On some models, apply pipe dope sparingly to the end of inlet gas
pipe plug and install into unused end of 1/8-in. (3 mm) tee. Use a
small back-up wrench on tee when tightening gas inlet pipe plug.
Or, on some models, tighten set screw on inlet tower pressure tap
with a 3/32-in. hex wrench, see
.
Fixed Speed Blower (FCT), Two-Stage Gas Valve
A200177
Representative drawing only, some models may vary in appearance.
A200176
Representative drawing only, some models may vary in appearance.
Fig. 22 – Example of PSC or Discrete Tap Two-Stage Furnace
Control
24-V THERMOSTAT
TERMINALS
PL2
–
HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
115-VAC (L2) NEUTRAL
CONNECTIONS
115-VAC (L1) LINE
VOLTAGE CONNECTIONS
EAC-1 TERMINAL
(115-VAC 1.0 AMP MAX.)
PL1
–
LOW VOLTAGE MAIN
HARNESS CONNECTOR
AND ECM BLOWER
HARNESS CONNECTOR
TRANSFORMER 24-VAC
CONNECTIONS
3-AMP FUSE
STATUS AND COMM
LED LIGHTS
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
MODEL PLUG
CONNECTOR
AIR CONDITIONING
(A/C) AIRFLOW
SETUP SWITCHES
COMMUNICATION
CONNECTOR
CONTINUOUS FAN
(CF) AIRFLOW
SETUP SWITCHES
OUTDOOR
AIR TEMP
CONNECTOR
HUMIDIFIER
TERMINAL (24-VAC
0.5 AMP MAX.
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
SW4 SETUP
SWITCHES
SOFTWARE
VERSION
PART NUMBER AND
DATE CODE WWYY
24-V THERMOSTAT
TERMINALS
PL2 – HOT SURFACE
IGNITER & INDUCER
MOTOR CONNECTOR
115-VAC (L2) NEUTRAL
CONNECTIONS
115-VAC (L1) LINE
VOLTAGE CONNECTIONS
EAC-1 TERMINAL
(115-VAC 1.0 AMP MAX.)
PL1 – LOW VOLTAGE MAIN
HARNESS CONNECTOR
TRANSFORMER 24-VAC
CONNECTIONS
3-AMP FUSE
STATUS AND COMM
LED LIGHTS
SW1 SETUP
SWITCHES AND
BLOWER OFF-
DELAY
MODEL PLUG
CONNECTOR
COMMUNICATION
CONNECTOR
AIR CONDITIONING (A/C) &
CONTINUOUS FAN (CF)
AIRFLOW SETUP SWITCHES
OUTDOOR
AIR TEMP
CONNECTOR
HUMIDIFIER
TERMINAL (24-VAC
0.5 AMP MAX.)
ACRDJ – AIR
CONDITIONING
RELAY DISABLE
JUMPER
FLASH
UPGRADE
CONNECTOR
(FACTORY
ONLY)
SOFTWARE
VERSION
TEST / TWIN
HUM
PL
T
PL
1
W
2
Y1
D
H
U
M
G
C
O
M
W
/W
1
Y/
Y2
R
24V
FUSE 3-- AMP
EAC-- 2
EAC-- 1
L1
BL--1 XFMR
L2
COM
HI HT
COOL
LO H T
SPARE 1
2
4
V
M
TR
TA
P
S
BLOWER SPEED
TERMINALS
115--VAC (L2)
NEUTRAL
CONNECTIONS
LED OPERATION
& DIAGNOSTIC LIGHT
3--AMP FUSE
24--V THERMOS TAT
TERMINALS
SET UP SWITCHES
THERMOSTAT TYPE (TT)
AND HEAT OFF--DELAY
TWINNING AND/OR
COMPONENT TEST
TERMINAL
HUMIDIFIER TERMINAL
(24 VAC 0.5 AMPS MAX)
TRANSFORMER
24 VAC CONNECTIONS
P--1 LOW VOLTAGE
P2 -- HOT SURFACE
IGNITER/INDUCE R
MOTOR CONNECTION
115 VA C
BLOWER POWER (BL1)
CONNECTION
115 VAC LINE (L1)
TT
OFF
DLY
ON
OF
F
123
ID
R
HS
IR
ID
M
IH
I/L
O
R
PL
2
1
HSI
HI
LO
1
EAC TERMINAL
115 VAC 1.0 AMP
MAX
115 VA C
TRANSFORMER
PRIMARY
SPARE 2
HUM
115 VAC HUM
COM/BLUE 24VAC/RED
CO
M
24V
24VAC
TEST / TWIN
HUM
PL
T
SEC-2
SEC-1
COM
24VAC
PL1
W2 Y
DHUM G COM W/W1 Y/Y2 R
24V
FUSE 3-AMP
EAC-2
EAC-1
L1
BL-1
PR-1
L2
COM
HI HT
COOL
LO HT
SPARE 2
R
T
M
V
4
2
T
APS
BLOWER SPEED
TERMINALS
115-VAC (L2)
NEUTRAL
CONNECTIONS
LED OPERATION
& DIAGNOSTIC LIGHT
3-AMP FUSE
24-V THERMOSTAT
TERMINALS
SET UP SWITCHES
LOW HEAT ONLY
AND BLOWER
OFF-DELAY
TWINNING AND/OR
COMPONENT TEST
TERMINAL
ACRDJ - AIR CONDITIONING
RELAY DISABLE JUMPER
HUMIDIFIER TERMINAL
(24 VAC 0.5 AMPS MAX)
TRANSFORMER
24 VAC CONNECTIONS
PL1-LOW VO LTAGE
MAIN HARNESS CONNEC TOR
PL2 - HOT SURFACE
IGNITER/INDUCE R
MOTOR CONNECTION
115 VAC
BLOWER POWER (BL1)
CONNECTION
115 VAC LINE (L1)
INPUT
LHT
OFF
DLY
ON
OFF
1 2 3
IDR
HSIR
IDM
IHI/L
OR
PL2
1
HSI HI LO
1
EAC TERMINAL
115 VAC 1.0 AMP MAX
115 VAC
TRANSFORMER
PRIMARY
SPARE 1