Bananza UHD 125, Installation, Operation & Service Manual

Page: 31 / 60

SECTION 10: W
IRING
23 of 47
10.3 UHD[X][S] Series Internal Wirin g Dia g ram
IMPORTANT:
For field w iring into service j u nction box, or if any of the original w ire s u pplied w ith the heater
m u st be replaced, it m u st be replaced w ith w iring material having a temperat u re rating of at least 105° C
(221° F) and 600 V . For s u pply connections, u se No. 14 AWG or larger w ires.
BLUE
BLACK
ORANGE
ORANGE
YELLOW
BROWN
WHITE
WHITE
L2 L1
ORANGE
ORANGE
BLACK
BLACK
GREEN
WHITE
BLUE
BLACK
GREEN
BLUE
GREEN
YELLOW
24 V
AC
HOT
GROUND
FLAME
BLACK
BLACK
6
3
4
2 1
4 5
3 1
SENSE
ELECTRODE
LIMIT SWITCH
PRESSURE SWITCH
GAS VALVE
IGNITION MODULE
TRANSFORMER
LIMIT SWITCH (UHD 300, 350, 400 ONLY)
MANUAL RESET LIMIT SWITCH (UHD 75 ONLY)
THERMOSTAT INPUT: FIELD SUPPLIED
R = 24 VAC TO THERMOSTAT (RED)
G = MANUAL FAN INPUT FROM THERMOSTAT (GREEN)
W = HEAT DEMAND INPUT FROM THERMOSTAT (WHITE)
C = COMMON GROUND TO THERMOSTAT
FLUE
BLOWER
R
G
W
C
ACC
L1
CMB BLOWER
5