Carrier 62X Series - Electric Heat; Fig. 94 - Two-Stage, 3-Element Electric Heat

62
Electric Heat
The 62X units may be equipped with electric heat. The electric
heat control may be staged or SCR control. Staged electric heat
units with nominal heater capacity of 10 to 25 kW are two stages,
30 kW and larger staged heaters are four stage. SCR control is
available on all heater sizes. See Fig. 94-98 for electric heater wir-
ing diagrams.
Fig. 94 — Two-Stage, 3-Element Electric Heat
24V CONTROL
CIRCUIT
BLACK
WHITE
C
W1
W2
WHITE/
BLACK
TERMINAL BLOCK
AIR PRESSURE
SWITCH
HEATER
RELAY
1
2
HEATER
ELEMENT
POWER TO UNIT
LIMIT
SWITCH
(AUTO)
MANUAL
RESET
LIMIT
TERMINAL
BLOCK
GROUND
GROUND
MANUAL
RESET
LIMIT
MAIN
TERMINAL
BLOCK
L1
L2
L3
3 PHASE 60 CPS
SUPPLY