External Frost Protection - Biasi RIVA COMPACT M90E.24S User Manual And Installation Instructions

Installation
To fused spur
isolation switch
3 2 1
M
Fig. 6.14
8 Connect the room thermostat between ter-
minals 1 and 3 as shown in Fig. 6.15.
Do not connect live wires to terminals to
which the room thermostat must be con-
nected.
Room thermostat
T
3 2 1
Fig. 6.15
9 Route the electrical supply flexible cord and
the external control flexible cord as illustrated
in Fig. 6.16.
Lock the flexible cords in place with the flexible
cord clamps
L N
Power supply
terminal block
External controls
terminal block
Power supply
terminal block
L N
External controls
terminal block
To the external
control device
Fig. 6.16
6.11

External frost protection

10 Connect the frost thermostat between ter-
minals 1 and 2 as shown in Fig. 6.17.
Do not connect live wires to terminals to
which the room thermostat must be con-
nected.
Frost thermostat Room thermostat
T
3
Fig. 6.17
To the fused spur
isolation switch
L N
T
Power supply
terminal block
2 1
External controls
terminal block
27