Lennox International Inc. G50UH-36A-070 Furnace User Manual


 
G5OUH(X) Schematic Wiring Diagram
120V ADO /_ SIS BLOWER SPEED CHART L_
OR SlO COMBUSTION AIR FACTORY CONNECTED SPEED TAPS MOTOR SECONDARY
PROVING SWITCH SREE_
K43 ECON PRIMARY GAS UNIT COOL HEAT FAN PARK PARK AVAIL, L_DTS
(IF USED) LIMIT COMBUSTION AIR _ 24A-045 fELLOW RED ........ 3 N/A
INDUCER MOTOR 2¢A-070 fELLOW RED 3 2
"-L£P./
36A-070 fELLOW RED .... BROWN 4 2
36B-090 _ BROWN RED .... YELLOt 4 {(RIGHT)
(ALTERNATE) _ < BROWN RED .... YELLO_ I(RISHT)
o o° o....,ELLo,,
GVf 6V I 4BC- 135 BROWN RED .... t'ELLO£t 4- _
60C-t JO fELLOW RED .... BROWN 4 I(R=eHT}
60D- 135 fELLOW RED .... BROWN 4- 2
WHITE-RODGER9 HONEYWELL 6DO° 155 fELLOW RED .... BROWN 4 2
/_ GAS VALVE GAS VALVE HXBLOWER_ - SPEED SELECTION
LO
0 _ SPEED BLACK Y_LI.QW RED 3
BURNERS TAPS BLACK BROWN YELLOW RED 4-
0[] 0 0 0 T.ERMOOTAT.EATANTICIPATIONSETTINES
PLANENOLLDUT\FLAMEI_NITER"_L_SAT
SWITCH SENSOR JI59 FLAME ROLLOU'[
JACKPLU6 CHART
P159 E_ SWITCH IJ.P5B IJACK/PLUG-GURNER CONTROL
DOOR TRANSFORMER IJ.PIB9 IJACK/PLUD-IONITION
INTERLOCI WARN INO-
OR DEATH.UNIT MUST BE GROUNDED IN ACCORDANCE
A92 _ ELECTRIC SHOCK HAZARD,CAN CAUSE INJURY
BLO_R
IGNITION COB c $21 WITH NATIONAL AND LOCAL CODES.
CONTROLpIs6 CIROOI SECONDARY IF ANY WIRE IN THIS APPLIANCE IS RSPLACED,IT
6REANEf GAS LIMIT MUST 6E REPLACED WITH WIRE OF LIKE SIZE,
(EA-) RATING,INSULATION THICKNESS AND TERMINATION,
PIJS
JI35_ _ IMPORTANT-
TO PREVENT MOTORDURMDUT,REVER CONNECT MORE
SI P50 THAN ONE MOTOR LEAD TO ANY ONE CONNECTION.
ROOM THERMOSTAT
(El)
Z_ PARK TERMINALS ARE UNPOWEREDTERMINALS. ALL
i®®.o®ol UNOREDMOTORLEAOOMUST6EWIREDTOA
" " " 9ZI PARK TERMINAL.
I I I I I l_(_I SECONDARY i:& FOR CORRECT NUM6ER OF SECONDARY
I
•--If-" " " ' _k GAS LIMIT _ LIMITS USED,SEE SECONDARY LIMIT SI
I I i I L .... j I I I I II A SECTION OF BLOWER SPEED CHART. ROOM THERMOSTAT
l i ,- .-, ,,I , "= .. /Ax FOR G5DUH-3OO-90 AND ._ _ _ _..
= I. ..... "1 .I I I i Do OODUH-4-BC-135 ONLY,DO NOT USE LJ'-c>P_R \
l IL ...... i= = ,,I I INDOOR RED (LOW SPEED) MOTOR LEAD -T- IIv .L _ nN.-L,I
[ ........ II I J I C4- 6LO_R MOTOR FOR HEATING SPEED. LEAVE ON ,_ I I _') N _ ,_-"%'tI
........... =.... ' CAPACITOR _ PARK OR USE FOR OONTINOOUS AIR _o'l I I /"_-_]C ..I.I'-_FANI
OUTDO(._ I I F-------I / \ CIRCULATION(FAN), T_'II _0 C) r(3 I )-,'"1
UNI<"r...... " ' I I ( ; _FIELOSH_LIEOAOO.WIRE._?_&ll..do-t_E___.YI
F-T-l, r ........... " _ _ ,_ USECOPPERCONDUCTORSONLY. Y '1I"°_L_ _oo%L /
....... A zAv,uMISA,,4-"FEMALEOOICKL I\ _ Lp L_J
J CONNECT TERMINAL
$51 _ LINE VOLTAGE FIELD INSTALLED
- 0O0R,NTERL K_---CLASSii VOLTAREFIELD,IRINO....
L, _-0_ _ DENOTES OPTIONAL COMPONENTS .u. _ _._ _ _
I-@ .... -_CK I,Z_ I I ,KS II
x_ . 24-_T I 1 Ilk- = I
IZOVAC ' VAC o -- N -- _ I
K,€ -_K; I ._I/---_V P98 "-./"4/ "-./_ _ "_L...--",P96 S_. _I/
_L I /'z, 9 _ ,_" J962 _ 4- "y" _ _'JSD '_"'_" '_-
._-JISS r- r- r_
I"''T II ,o;,. 0v,
PI59_/ I I I / _,_ O=_
R35 _ SPE_FEDCHART YELLOW
JI59, sot
PI59_
A9Z J I
EQUIPMENT
WHITE
FIGURE 26
Page 24