Manual 2100-451E
Page
12 of 24
NOTE: The voltage should be measured at the field
power connection point in the unit and while
the unit is operating at full load (maximum
amperage operating condition).
Eight (8) wires should be run from thermostat subbase to the
24V terminal board in the unit. An eight conductor, 18 gauge
copper, color-coded thermostat cable is recommended. The
connection points are shown in Figure 7.
WIRING — LOW VOLTAGE WIRING
230/208V, 1 phase and 3 phase equipment dual primary
voltage transformers. All equipment leaves the factory
wired on 240V tap. For 208V operation, reconnect from
240V to 208V tap. The acceptable operating voltage range
for the 240 and 208V taps are shown in Table 4 below.
TABLE 6
WALL THERMOSTATS
TABLE 5
THERMOSTAT WIRE SIZE
r
e
m
r
o
f
s
n
a
r
T
A
V
A
L
F
e
g
u
a
G
e
r
i
W
m
u
m
i
x
a
M
e
c
n
a
t
s
i
D
t
e
e
F
n
i
0
5
1
.
2
e
g
u
a
g
0
2
e
g
u
a
g
8
1
e
g
u
a
g
6
1
e
g
u
a
g
4
1
e
g
u
a
g
2
1
5
4
0
6
0
0
1
0
6
1
0
5
2
t
a
t
s
o
m
r
e
h
T
s
e
r
u
t
a
e
F
t
n
a
n
i
m
o
d
e
r
P
0
6
0
-
3
0
4
8
)
5
4
4
-
0
2
1
1
(
t
a
e
H
e
g
a
t
s
3
;
l
o
o
C
e
g
a
t
s
3
c
i
n
o
r
t
c
e
l
E
e
l
b
a
m
m
a
r
g
o
r
P
-
n
o
N
/
e
l
b
a
m
m
a
r
g
o
r
P
l
a
n
o
i
t
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n
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P
H
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o
e
g
n
a
h
c
l
a
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n
a
M
r
o
o
t
u
A
8
5
0
-
3
0
4
8
)
1
5
1
1
D
0
2
2
5
H
T
(
t
a
e
H
e
g
a
t
s
2
;
l
o
o
C
e
g
a
t
s
2
e
l
b
a
m
m
a
r
g
o
r
P
-
n
o
N
c
i
n
o
r
t
c
e
l
E
r
e
v
o
e
g
n
a
h
c
l
a
u
n
a
M
r
o
o
t
u
A
THERMOSTATIC CONTROL
FOR DUAL UNIT APPLICATION
t
a
t
s
o
m
r
e
h
T
s
e
r
u
t
a
e
F
e
t
a
n
i
m
o
d
e
r
P
s
n
o
i
t
a
c
i
f
i
c
e
p
S
d
r
a
B
0
4
C
E
T
l
o
o
C
e
g
a
t
S
-
2
/
t
a
e
H
e
g
a
t
S
-
2
/
t
i
n
U
-
2
r
e
ll
o
r
t
n
o
C
3
5
3
3
S
t
e
e
h
S
.
c
e
p
S
e
e
S
0
0
0
3
C
M
l
o
o
C
e
g
a
t
S
-
2
/
t
a
e
H
e
g
a
t
S
-
2
/
t
i
n
U
-
2
s
m
r
a
l
A
n
o
i
t
p
O
h
t
i
w
r
e
ll
o
r
t
n
o
C
9
7
3
3
S
t
e
e
h
S
.
c
e
p
S
e
e
S
TABLE 4
OPERATING VOLTAGE RANGE
P
A
T
E
G
N
A
R
V
0
4
2
6
1
2
-
3
5
2
V
8
0
2
7
8
1
-
0
2
2
FIGURE 6
ELECTRIC HEAT CLEARANCE
Side section view of supply air duct for
wall mounted unit showing 1/4 inch
clearance to combustible surfaces.
WARNING
•
A minimum of 1/4 inch clearance must be
maintained between the supply air duct and
combustible materials. This is required for the
first 3 feet of ducting.
•
It is important to insure that the 1/4 inch
minimum spacing is maintained at all points.
•
Failure to do this could result in overheating the
combustible material and may result in fire.
