TECH
VI. Installation
Caution!
Installation should be performed by a person with
adequate training and certificates. The device
MUST NOT BE LIVE
at the
time of installation (one MUST make sure that the plug is
DISCONNECTED
from the power network).
CAUTION!
Wrong installation of the cabling may damage
the regulator.
The regulator cannot work in the closed system of the central
heating. Safety valves, pressure valves and surge tank that protect the
boiler from boiling of water in the central heating system must be
installed.
VI.a) Diagram of the regulator’s cabling installation
Additional attention has to be paid during installation of the regulator’s
cabling. It is very important to install the earthing wiring in the right
way.
- 17 -
PE
N
L
FUSE 6.3A
~
T
ra
n
sm
it
er
230V AC
Fan
~
T
ra
n
sm
it
er
230V AC
CH Pump
~
T
ra
n
sm
it
er
230V AC
Feeder
~
T
ra
n
sm
it
er
230V AC
CHW Pump
Room
regulator
Thermical
Fuse
Boiler’s
Sensor
Worm’s
Sensor
Boiler’s
Sensor
Feeder
Fan
CH
Pump
CHW
Pump
Network
L
L
L
L
N
N
N
N
N
L
1 2
3
4
5
6
7 8 9 10
11 12
Reed Relay
Summary of Contents for ST-77
Page 1: ...ST 77 Manual Guide...
Page 20: ...Notes...