B
J
1
9
E
A
T
A
A
A
A
A
A
W
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2 pipes/2 wires right, low pressure (PTC 2 wired stages)
2 pipes/2 wires left, low pressure (PTC 2 wired stages)
2 pipes/2 wires right, high pressure (PTC 5 wired stages)
2 pipes/2 wires left, high pressure (PTC 5 wired stages)
2 pipes/2 wires right, high pressure (PTC 4 wired stages)
2 pipes/2 wires left, high pressure (PTC 4 wired stages)
Fresh air
Digit 15
None
A
125 mm ø fresh air spigot only
B
8.3 l/s (30 m3/h)
16.6-44.4 l/s (21/28/36)
C
60-160 m3/h (75/100/130)
Motorised fresh air valve adapter ø
E
125 mm
X
SPECIAL
Digit 11
0
None
A
230 V on/off
C 3 points 230 V
Digit 12
None
A
NTC
D
NTC + IAQ board
K
NTC + fuse holder
L
NTC + IAQ board + fuse holder
AIR TREATMENT
Control
Digit 10
None
C 2-way valve
D 3-way valve
J 2-way valve + flexible piping
K 3-way valve + flexible piping
Digit 8
A 2 pipes right
B 2 pipes left
C 4 pipes right
D 4 pipes left
672
Valves
* Fixed values
Digits 5/6
1
9
2
9
4
9
E
F
G
H
J
K
Motor wiring*
2
1
Filter and access
Supply and return
air plenum*
Product reference
Digit
Size
Sensors
Coils
4
Product type*
Valve motors
Modification code*
Codification
Digit 14
F
F5 access from below
G F5 side access
H F5 access from above
K
F6 access from below
L
F6 side access
M F6 access from above
S
Activated carbon filters + UVPCO (access from below)
T
Activated carbon filters + UVPCO (side access)
U Activated carbon filters + UVPCO (access from above)
Digit 13
None
A
Return air sensor
B
Supply air sensor
C
Changeover sensor
D
A+B
E
A+B+C
F
A+C
G
B+C
H
CO2 sensor
J
A + CO2
K
B + CO2
L
C + CO2
M A + B + CO2
N
A + C + CO2
P
B + C + CO2
Q
A + B + C + CO2
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7