Nordyne E3 Series - Manual (Page 25)

25
TRANSFORMER
240V
24V
CONT
A
C
T
O
R
LIMITS
TO
P
ELEMENTS,
10.0/10.8 KW
ELEMENTS BO
TT
OM ELEMENT
, 5.0/5.4 KW
H MH
ML
L
C
BLAC K
RED
BLACK
GREY
ORANGE
GREY
BLA
CK
BLUE
BLA
CK
RED
1
5
2
BLO
WER
RELA
Y
3
6
4
GREEN
GREY
GREY WHITE
4
2
3
1
1
2
3
4
5
6
12
3
45
6
RED
FUSE
VIOLET
BLA
CK
COM
CONT
A
C
T
O
R
BLA
CK
BLA
CK
RED RED RED
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
Vo
lt
a
g
e
Gr
ound Line Vo
lt
a
g
e
60A
ON
OFF
CIRCUIT
BREAKERS
WHITE
RED
BLA
CK
BLA
CK
RED
WHITE
GREY
RED
YELLOW
BLAC K
ORANGE
BLUE
YELLOW
RED
W
ARNING:
Switc
h cir
cuit breaker
s to
the OFF position bef
ore
ser
vicing the furnace
.
Figure 28. E3EB 015H, E3EB 017H 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-
Leg
end:
CB – Circuit Break
er
E – Heater Element IFR – F
an Rela
y
Cont – Contactor
LS – Limit Switch IFM – F
an Motor
– F
an Plug
240V
Cont 1
C
H L
IFM
CB-A
CB-A
CB-B
CB-B
Transformer
LS
Btm -
5.0/5.4
Top -
10.0/10.8
ML MH
1 2 3 4 5
IFR
Red
Yellow Blue
E
Cont 1
IFR
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)
E
Fuse