64
Fig. 96 — Four-Stage, Nine-Element Electric Heat
Fig. 97 — SCR Power Control
A
A
A
A
A
A
A
A
A
TERMINAL
BLOCK
WHITE / RED
WHITE / BLUE
WHITE / BLACK
WHITE
BLACK
C
W1
W2
W3
W4
FUSE
BLOCK
NOTE: REPLACEMENT FUSES MUST BE CLASS “K”
AND OF THE SAME AMPERAGE AS SHOWN.
GROUND
TERMINAL
BLOCK
L1
L2
L3
HEATER
RELAY
HEATER
RELAY
LIMIT
SWITCH
TERMINAL
BLOCK
HEATER
RELAY
MANUAL
RESET
LIMIT
LIMIT
SWITCH
HEATER
RELAY
MANUAL
RESET
LIMIT
AIR PRESSURE SWITCH
HEATING
ELEMENTS
LIMIT
SWITCH
TO
UNIT
GROUND
DIP
SWITCH