38
APPLICATION DIAGRAM 2b: radiating panel heating only - Fan convectors cooling/dehumidifying only
W
at
er Mains
Gas
T
T
T
T
T
TA
TA
TA
TA
TA
Sensor NT
C
Cabl
e 2x0.5mm²
LO
W TEMPERA
TURE CIRCUIT r
eques
t
NO Cont
act - Cabl
e 2x0.5mm²
RADIA
TING P
ANEL
SYSTEM PO
WER SUPPL
Y
(heating onl
y)
FAN CONVEC
TORS
(onl
y c
ooling
dehumidify)
FAN CONVEC
TORS
(onl
y c
ooling
dehumidify)
FAN CONVEC
TORS
(onl
y c
ooling
dehumidify)
AB
B
A
DIVERTER V
AL
VE
COOLING-HEA
TING
(not supplied)
COLD MODE output dry c
ont
act
cabl
e 2x1.5mm²
Use the c
ont
act
av
ailabl
e on the sel
ect
or
El
ectric
al panel
Summer/Wint
er
HEA
T
PUMP
SOLAR
COLLEC
TOR
(optional)
SOLAR SENSOR
(optional)
SIME HOME PL
US
Cabl
e 2x0.5 mm²
Open-Therm c
ommunic
ation
EXTERNAL SENSOR
(optional)
Cabl
e 13x0.75mm²
min. r
ec
ommended
cr
os
s-section
Digit
al input (eg.
Summer/Wint
er sel
ect
or)
as an alt
ernativ
e t
o the
sel
ect
or on the panel
Sensor PT1000 Cabl
e 2x0.5mm²
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.
– The COOL MODE (dry-contact) output must switch the HEATING/COOLING DIVERTER VALVE.
– The head request is always supplied by the TA (ambient thermostats).
