Installation guide

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w u J1 RED I
Y TBB=NI I ......
R _ HUM _I I _.........
FuIr_ _ - BLU _BLK
_TE#6 r_
_ _ _ RED _ WriT
SEC-2 SEC-1 _, _ d
_ _ PRS _ _ ILGPS I I
........ ; .......... il
OTE_11/ >d II
_--_-- BLK PL3 GRN/YEL
B-- .... WHT B ,N)---- i WHT
WHT _' -r _2-_"
RED I F I L
I i .......,¢___,"-"
"--L BHT/CLR BLOWER MOTOR SPEED CHANGE RELAY, SPDT LSI, 2 LIMIT SWITCH, AUTO-RESET, SPST (N.C.)
E BLWR SLOWER MOTOR RELAY, SPST - {NO.) OL AUTO-RESET INTERNAL MOTOR OVERLOAD
BLWM BLOWER MOTOR, PERMANENT - SPLIT - CAPACITOR TEMPERATURE SWITCH (N.Cg
C BUSS BLOCKED VENT SHUTOFF SWITCH, MANUAL- RESET SPST-(N C.) PCB PRINTED CIRCUIT BOARD CONTROL
CAP CAPACITOR PL 11-CIRCUIT PCB CONNECTOR
CPU MICROPROCESSOR AND CIRCUITRY 2-CIRCUIT CONNECTOR
E .................... l................ T_NC) _23 2_IRCUIT HSl ..........
__ EAC-1 ELECTRONIC AIR CLEANER CONNECTION (115 VAC 1.0 AMP MAX) PRS PRESSURE SWITCH SPST-(N.O.)
SAC-2 ELECTRONIC AIR CLEANER CONNECTION (COMMON) TEST/TWIN COMPONENT TEST & TWIN TERMINAL
FRS 12 FLAME ROLLOUT SW-MANUAL RESET SPST-(N C,)
FSE FLAME-PROVING ELECTRODE TRAN TRANSFORMER-If EVAC/24VAC
FU 1 FUSE, 3 AMP, AUTOMOTIVE BLADE TYPE, FACTORY INSTALLED --0-- JUNCTION
FU 2 FUSE OR CIRCUIT BREAKER CURRENT INTERRUPT DEVICE O UNMARKED TERMINAL
(FIELD INSTALLED & SUPPLIED)
GND EQUIPMENT GROUND _ PCB CONTROL TERMINAL
GV GAS VALVE-REDUNDANT _ FACTORY WIRING (t 15VAC)
GVR GAS VALVE RELAY, SPST-(N O ) FACTORY WIRING (24VAC)
HSI HOT SURFACE IGNITER (115 VAC)
HSIR HOT SURFACE IGNITER RE Ay, SPST-(N O.) _- FIELD WIRING (lfl 5VAC)
HUM 24 MAC HUMIDIFIER CONNECTION (05 AMP MAX) .... FIELD WIRING (24VAC)
IDM INDUCED DRAFT MOTOR, SHADED-POLE CONDUC fOR ON CON [ROL PCB
IOR INDUCED DRAFT MOTOR R Eb_,y, SPST-(N.O) _ FIELD WIRING SCREW TERMINAL
ILK DOWER ACCESS PANEL INTERLOCK SWITCH, SPSI-(N.O.) .j_.
J1 BLOWER - OFF DELAY JUMPER SELECTOR - HEATING _ FIELD EARTH GROUND
J2 BLOWER - OFF OELAY JUMPER - COOLING _ EQUIPMENT GROUND
JB JUNCTION BOX
LED LIGHT-EMI_ING DIODE FOR STATUS CODES - RED _ FIELD SPLICE
LOPS LOW GAS PRESSURE SWITCH SPST-{N O.) _ )---_ PLUG RECEPTACLE
(NATURAL & PROPANE GASES)
2 i NEUTRAL _ EQUIPMENT GROUND
m
SPARE-1 _ MEDLO CAP
HEAT MED HI -
NOTE #5 START L2
L COOL BLWM EAC-2
IbR HSI
...... -- •
)-- -- BVSS
I | FRS1 BSS (WHEN USED)
F U1 { NO PL14 - -_
FRS2 LS1 NOTE #10
w@ :P:_1 (WHEN USED}
II _.,_ (WHEN USED) _q_
/ PL1-5 _#3
--_::=> FL-_
C 4v PCB NOTE#5 I_PL-7
NOTES:
1. If any of the odginal equsment wre is replaced use wire rated for 105"C.
2. Use only copper wire between file disconnect switch ahd the furnace iWlction box (JB).
3. This wre must be connected to furnace sheet mefal for control to prove flame.
4. Symbols are eleetdcal representat on only.
5. Solid lines inside PCB are pdn_ed c_mtBt board conductors and are not included n legend.
6. Replace only with a 3 amp fuse.
7. Inducer (IDM) and blower (BLWM) motors contqin internal auto-reset thermal overload switches (eL).
B. Neutral connections are intemhangeable within the NEUTRAL connector block.
9. Blower motor speed selections are for average conditions, see installaton instructions for details on
optimum speed selection.
10. Factory connected when BUSS (Chimney Adaptel Accessory Kt) is not installed.
11. Factory connected when LOPS is not used.
12. Ignition-lockout will occur after fo_r consecutive unsuccessful tdals-for-ignition. ConBol will
auto-reset after three hours.
13. Blower-on delay: gas heating 25 seconds, cool ng or heat pump 2 seconds.
14. Blower-off delay: gas heating selections are 90,120,150 or 180 seconds, cooling or
heat pump 90 seconds or 5 seconds when J2 is out.
_,. 15. Low Speed Tap on 4 speed motor only. 339937-201 REV, A_
A13111
Fig. 41 - Wiring Diagram
35