Nordyne E3 Series - Manual (Page 26)

26
!
W
ARNING:
Switc
h cir
cuit breaker
s to
the OFF position bef
ore
ser
vicing the furnace
.
Leg
end:
CB – Circuit Break
er
E – Heater Element IFR
– F
an Rela
y
Cont – Contactor LS – Limit Switch
– F
an Plug
IFM
– F
an Motor
60A
ON
OFF
GRD
Single Suppl
y
(optional)
OR Cir
cuit A
Cir
cuit B
GRD
GRD
Gr
ound
Dual
Suppl
y
60A 60A
ON ON
OFF OFF
Gr
ound
Line
V
olta
g
e
Gr
ound Line
V
olta
g
e
60A
ON
OFF
CIRCUIT
BREAKERS
TRANSFORMER
240V
24V
CONT
A
C
T
O
R
ELEMENTS
LIMITS
T
O
P ELEMENTS,
10.0/11.6/7.6 KW
BLA
CK
ELEMENTS
BO
TT
OM ELEMENT
, 10.0/7.6 KW
H MH
ML
L
C
ORANGE
BLACK
BLACK
BLACK
GREY
GREY
BLUE
WHITE
BLACK
BLACK
GREEN
1
5
2
BLO
WER
RELA
Y
3
6
4
GREY
WHITE
4
2
3
1
4
2
3
1
1
2
3
4
56
123 4
56
BLA
CK
FUSE
VIOLET
RED
WHITE
COM
CONT
A
C
T
O
R
RED RED RED RED
BLA
CK
GREY
BLUE
YELLOW
RED
RED
YELLOW
RED
GREY
RED RED
BLA
CK
BLA
CK
RED
RED
ORANGE
BLA
CK
Figure 29. E3EB 020H, 023H, and 023H - 5 Ton, E2EB-015HBR Wiring Diagrams
NO
TES:
1)
See unit data label f
or recommended supply wire
siz
es
.
2)
Ther
mostat anticipator setting:
0.40 Amps
.
3)
T
o
change b
lo
w
er speed on units without a rela
y
bo
x ref
er to installation instr
uctions
.
4)
Ref
er to fur
nace and/or rela
y bo
x installation f
or
ther
mostat connections
.
5)
If an
y wire in this unit is to be replaced it m
ust be
replaced with 105°C ther
moplastic copper wire of
the same gauge
.
6)
Not suitab
le f
or use on systems e
xceeding 120V to
g
round.
7)
This wire is used with some accessor
ies
. See
accessor
y Installation Instr
uctions f
or fur
ther de-
240V
Cont 2
C
H L
IFM
CB-A
CB-A
CB-B
CB-B
Transformer
LS
Top -
10.0/11.6/7.6 Btm - 10.0/7.6
ML MH
1 2 3 4 5
IFR
Red
Yellow Blue
E E
Cont 2
IFR
Cont 2 Cont 2
LS
Cont
2
Cont
1
24V
Red Pig-Tail
White Pig-Tail
IFR
Green Pig-Tail
Grey Pig-Tail
6
Black Grey
Org.
White Jumper Wire
(See note 7)
Fuse