7.9 Options for AlfaSolar S/SR
™
models
7.
Plug and connector
8.
Clamp/drill screw
Caution:
Limey water may block up the nozzles and it can also form an isolating layer on the
surface of the heat transfer section.
A wrong pH value of water may damage the heat transfer section. The pH value varies between 7...8.
Caution:
Freezing water may break the water tubing. Always drain the tubing after use by opening
the end plug (no. 7).
7.9.2 Connection box options of EC-fans
WARNING:
EC-fans
: Electrical load (>50 μC) between mains wire and protective earth
connection after switching of the supply when switching multiple devices in parallel.
Electric shock, risk of injury. Ensure that you have sufficient protection against
accidental contact.
Before working on the electrical connection, short the connections to the mains
supply and PE.
EC-fans
: Terminals and connections have voltage even in a unit that is shut off.
Electric shock. Wait for five minutes after disconnecting the voltage at all poles before
opening the device.
WARNING:
Ensure free space in front of the electrical cabinet according to local regulations.
Electrical options for EC-fans
Code
Service Switch:
• Optional in S
™
models
• Standard in SR
™
models
SW
Fan power supply and control signal cables are wired to the unit
end.
CBP
Fan power supply and control signal cables are wired to the unit
end. The electrical panel is equipped with circuit breakers and unit
power switch. Control signal 0 V … 10 VDC
ECCB
Fan power supply and control signal cables are wired to the unit
end. The electrical panel is equipped with circuit breakers and unit
power switch. Control signal 4 mA … 20 mA
ECCBI
Control box
Fan power supply and control signal cables are wired to the unit
end. The electrical panel is equipped with circuit breakers and unit
power switch. Control with temperature probe.
ECCBT
©
Alfa LU-VE, Rev-04
55
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
