5 ELECTRICAL DIAGRAM
X23 temperature to dwelling
X20 temperature from dwelling
X22 temperature from outside
X21 temperature to the outside
CONNECTOR FUNCTION
X5 (BLACK)
= EXHAUST FAN CONTROL X6
(WHITE)
= SUPPLY FAN CONTROL
X8
=FAULT RELAY (NO), CLOSES WHEN FAULT OCCURS
X9
= WIRED 3 POSITION SWITCH CONNECTION
X13 (BLACK) = EXHAUST FAN POWER SUPPLY
X14 (WHITE)
= SUPPLY FAN POWER
X15
= BYPASS MOTOR CONTROL
X17
= ELECTRIC PRE-HEATING ELEMENT CONNECTION
X20 (BLACK) = TEMPERATURE SENSOR OF THE HOUSE
X21 (BLACK) = TEMPERATURE SENSOR TO OUTSIDE
X22 (WHITE) = TEMPERATURE SENSOR FROM OUTSIDE
X23 (WHITE)= TEMPERATURE SENSOR TO THE HOUSE
X25= DECORATIVE FIREPLACE CONNECTION (POTENTIAL-
FREE CONTACT NO)
X26= CONNECTION 0-10V CONTROL (HOME AUTOMATION)
X27= POWER SUPPLY 230 VAC / 50HZ
ELECTRIC DIAGRAM 19
EXHAUST FA
N
M
SUPPLY FAN
A
n
te
n
n
a
X
1
3
M
X
1
4
X
2
7
E
V
V
E
(o
p
ti
o
n
a
l
fo
r
T3
5
0
/
T
5
0
0
)
X
1
7
2
3
0
V
A
C
/5
0
H
z
N
u
tr
it
io
n
X9
3
p
o
s
it
io
n
s
w
it
c
h
(o
p
ti
o
n
a
l)
F
a
u
lt
r
e
la
y
(
N
O
)
X
8
-
X
2
5
P
o
te
n
ti
a
l-
fr
e
e
c
o
n
ta
c
t
(N
O
)
D
e
c
o
ra
tiv
e
f
ir
e
p
la
c
e
X
5
X6
X
2
6
G
N
D
0
-10V
0
-1
0
V
c
o
n
tr
o
l
(h
o
m
e
a
u
to
m
a
ti
o
n
)
BYPASSMOTO
R
M
X
1
5
