16
Manufacturer reserves the right to alter specifications
Wiring Diagram V90
V90
Connection box
Designated 24VAC Transformer (included on the
unit
commissioned by 24 VAC optional)
When retrofitting a transformer it is connected
as above wiring diagram.
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.
V90 wiring diagram
Eletrical plug (grounded)
230 VAC
Insulated transformer
24VAC 25W
Ani freeze guard
water heater coil
Temperature sensor
Supply air
Valve actuator
Cooling coil
Eletrical heater
Valve actuator
Heating coil
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
