17
Manufacturer reserves the right to alter specifications
Wiring Diagram V90EL
Hazard
Ensure that power is disconnected before maintenance and electrical work.
Work with electrical connections and maintenance may only be performed by a qualified person accor-
ding to local rules and regulations.
V90EL
Connection box
Pulser PCB for electric heaters EB2
When retrofitting, connect as above wiring dia-
gram.
When supplementing with 24VAC transformer,
the transformer are placed in a separate casing.
V90EL wiring diagram
Eletrical plug (grounded)
230 VAC
(Optional with separate
casing)
Insulated transformer
24VAC 25W
Valve actuator cooling coil
Temperature sensor
Supply air
Pulser PCB EB2
Eletrical heater
Damper #1
Damper #2
Circulation pump
Water heater coil
Circulation pump
Water cooling coil
D
igit
al
in
pu
ts
O
nly p
ote
nti
al f
re
e s
w
itc
h
D
I 2
E
xter
na
l em
er
gen
cy
s
to
p
D
I 4
Fir
e p
la
ce a
ctiv
ate
d
D
I 3
E
xte
rn
al n
orm
al s
tp
o
DI
5
For
ced
v
en
tila
tion
mo
de
a
ctiv
ated
D
I 6
A
w
ay v
en
tila
tio
n m
od
e a
ctiv
ate
d
D
igit
al
O
U
T
D
O 1
U
nit i
n o
pe
ra
tio
n m
od
e
