"A" (BOTTOM)
FUSE
CONTACTOR
240V COM
24V
ELEMENTS LIMIT
ELEMENTS LIMIT
T1
T2
T3
T4
T5
G
N
L
C
X13
"B" (TOP)
TOP BOTTO M
BOTTOMTOP
123
456
123
456
152
463
BLOWER
RELAY
RED
BLUE
RED
ORANGE
WHITE
BLACK
RED
RED
RED
BLACK
BLACK
RED
RED
RED
BLACK
GREY
GREY
WHITE
GREY
BLACK
WHITE
ORANGE
VIOLET RED
GREEN
WHITE
GREY
BLACK
RED
BLACK
BLACK
WHITE
BLACK
BLACK
RED
RED
BLUE
BLUE
RED
BLACK
GREEN
7107400
(Replaces 7106550)
WIRING DIAGRAM
Models: E3EX - 020H
NOTES:
1. See unit data label for recommended supply wire sizes.
2. Thermostat anticipator setting : 0.40 Amps
3. To change blower speed on units without a relay box installed refer to installation instructions.
4. Refer to furnace and/or relay box installation instructions for thermostat connections.
5. If any wire in this unit is to be replaced it must be replaced with 105° C thermoplastic copper wire
of the same gauge.
6. Not suitable for use on systems exceeding 120V to ground.
7. Refer to Installation Instructions for complete wiring diagram.
8. Heating and cooling may be wired on the same speed using the provided jumper wire.
WARNING
Switch circuit breakers to the “off”
position before servicing the furnace.
!
¢710740u¤
