37
APPLICATION DIAGRAM 2a: radiating panel heating only - Fan convectors cooling/dehumidifying only
W
at
er Mains
Gas
T
T
T
T
Enabling COOLING f
an c
onv
ect
or heads
and disabling HEA
TING r
adiating heads.
USE THE A
VAILABLE CONT
AC
T ON
THE SUMMER/WINTER SELEC
TOR OF
THE ELEC
TRIC
AL P
ANEL.
T
TA
TA
TA
TA
TA
TA
TA
TA
Sensor NT
C
Cabl
e 2x0.5mm²
Cabl
e 2x0.5 mm²
Open-Therm c
ommunic
ation
HO
T/COLD MODE output dry c
ont
act - c
abl
e 3x1.5mm²
LO
W TEMPERA
TURE CIRCUIT r
eques
t
NO Cont
act - Cabl
e 2x0.5mm²
Cabl
e 13x0.75mm²
minimum rec
ommended
cr
os
s-section
RADIA
TING P
ANEL
SYSTEM PO
WER SUPPL
Y
(heating onl
y)
RADIA
TING P
ANEL
SYSTEM PO
WER SUPPL
Y
(heating onl
y)
F
AN CONVEC
TORS
(onl
y c
ooling
dehumidify)
F
AN CONVEC
TORS
(onl
y c
ooling
dehumidify)
HEA
T
PUMP
SOLAR
COLLEC
TOR
(optional)
SOLAR SENSOR
(optional)
SIME HOME PL
US
EXTERNAL SENSOR
(optional)
Sensor PT1000 Cabl
e 2x0.5mm²
Digit
al input (eg.
Summer/Wint
er sel
ect
or)
as an alt
ernativ
e t
o the
sel
ect
or on the panel
SOLAR
MANA
GEMENT
(optional)
NOTE:
– Radiating panel heating only.
– All the safety limit microswitches are connected in parallel to the LOW TEMPERATURE CIRCUIT REQUEST input (NO dry
contact).
– Fan convectors cooling/dehumidifying only.
– COOL MODE output (dry-contact) must enable the fan convectors head and disable the radiating panel head.
– The head request is always supplied by the TA (ambient thermostats).
