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Description of wiring diagram
Item
Description
A
Motor valve
B
Combi Port E controller
C
Plate heat exchanger
D
Hot water meter distance piece
E
Cold water meter distance piece
F
Distance piece for return temperature limiter (RTB) or
differential pressure regulator
G
Strainer
H
Venting screw
I
Pump
J
Bypass valve
K
Heat meter distance piece
L
Draining and filling valve
M
Connection, ball valve
N
Circulation pump (optional)
O
Backflow preventer
P
Insert strainer
Q
Flow sensor
R
Contact sensor
S
Sensor pocket heat meter
T
Safety temperature monitor
U
Room thermostat RTA
V
EPP cover
W
Uponor Base flexiboard controller
X
Zone valve for limiting heating flow to apartment
Y
Potential free heat circuit distributor cable (optional)
Description of connection symbols
For description of the connection symbols, see
Flow sensors
Contact
Description
Colour cable
tie
X21
Heating return (primary)
Blue
X22
Cold water from riser (CW)
Green
X25
(optional)
X26
(optional)
Temperature sensors
Contact
Description
Colour cable
tie
T1
Domestic hot water
Red
T2
Heating supply (primary)
Orange
T3
Heating supply (secondary)
Yellow
T4
Heating return (secondary)
Black
T7
Cold water from riser (CW)
Green
T8
Heating return (primary)
Blue
T9
Room temperature sensor
(optional)
T10
Outdoor temperature sensor
Combi Port E
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Installation and operation manual
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