Fujitsu UTW-SCBYA Installation And Operating Manual page 32

Control Box
Configuration 5 :
Boiler connection and 1 heating circuit
Overall hydraulic layout
Ex : boiler unit
D
CCI
CAT
M
VDI BD
CC
Overview of all the electrical connections
SE
1
2
CC
Legend
BD - Disconnection bottle
CAT - Anti-gravity feed valve
CCI - Heating system circulation pump built into the boiler
CC - Heating circulation pump
- 32 -
Ex : boiler unit
A
CCI
M
VDI
SDR
TA
16
4
15
M
VDI
17
SDR
CR - Regulation Control Box
R - Radiators (or fan convectors)
CA - Room control unit
or Room thermostat (option)
" See detailed
SP
CR
20
SP
SE - Outdoor sensor
SDR - Boiler connection valve flow sensor
SP - Heated floor thermal safety fuse
TA - Boiler supply of boiler unit
VDI - Distribution valve (deviation boiler)
Installation and operating manual "1395 - EN"
instructions on page 28
CA
R
5
CA
R