Lennox LDT DUAL FUEL Series - Unit Components and Diagrams; LDT Unit Parts Arrangement; Control Box Component Identification

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LDT078-150 PARTS ARRANGEMENT
UNIT
CONTROLLER
INDOOR
COIL
OUTDOOR FANS
(3 ON 122 & 150)
COMPRESSORS
CONDENSATE
DRAIN
FILTERS
(FOUR - 20 X 25 X 2”)
ECONOMIZER
(OPTIONAL)
BLOWER
(DIRECT DRIVE)
GAS VALVE
BURNERS
COMBUSTION
AIR INDUCER
WIRELESS
BOARD
WIFI
ANTENNA
REVERSING
VALVE
FIGURE 1
LDT078-150 CONTROL BOX
W4
A55
K65
T3
T1
T18
TB13
K1
K2
S117
SHADED AREA IS A HINGED PANEL IN FRONT OF
CONTROLS AREA (OPTIONAL A173 LOCATION)
FIGURE 2