Bard WA611 Installation Instructions Manual - page 11
Manual 2100-425B
Page
11 of 21
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).
Five (5) wires should be run from thermostat subbase to
the 24V terminal board in the unit. A five conductor, 18
gauge copper, color-coded thermostat cable is
recommended. The connection points are shown in
Figure 8.
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 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
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
5
5
3
.
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
TABLE 6
WALL THERMOSTAT
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
7
5
0
-
3
0
4
8
3
5
1
1
D
0
2
2
5
H
T
t
a
e
H
e
g
a
t
s
1
,
l
o
o
C
e
g
a
t
s
1
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
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
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
n
e
v
n
o
C
r
o
P
H
r
e
v
o
e
g
n
a
h
c
l
a
u
n
a
M
r
o
o
t
u
A
LOW VOLTAGE CONNECTIONS
These units use a grounded 24 volt AC low voltage
circuit.
The
"R"
terminal is the
hot
terminal and the
"C"
terminal is
grounded
.
"G"
terminal is the
fan input
.
"Y"
terminal is the
compressor input for cooling
.
"W1"
terminal is the
1st stage electric heat
. The
reversing valve must be energized for heating mode.
"W2"
terminal is
second stage heat
(if equipped).
"F"
terminal is the
ventilation input
. This terminal
energizes any factory installed ventilation option.
LOW VOLTAGE CONNECTIONS
FOR DDC CONTROL
Fan Only
Energize G
Cooling Mode
Energize Y, G
1st Stage Heating
Energize W1
2nd Stage Heating
Energize W1, W2
(if employed)
Ventilation
Energize G, F