Solar Heating System; Electrical Connection - A.O. Smith SGE Installation And Operation Manual

is

3.10 Solar heating system

3.11 Electrical
connection
3.11.1
Instruction manual SGE
Note
For the solar heating system connections, refer to the electrical
diagram (17.4 "Electrical diagram, solar heating system")
table. ( "Electrical connector block")
1. Connect the supply from the solar collector to the inlet (F) of the heat
exchanger (55).
2. Connect the return pipe to the solar collector to the outlet (G) of the heat
exchanger (55).
3. Connect the lead from the solar heating system controller to sensor S2, see:
- electrical diagram (17.3 "Electrical diagram for the appliance")
- connections table (3.11.2
4. Connect the communication cable between the solar heating system
controller and the appliance, see:
- electrical diagram (17.4 "Electrical diagram, solar heating system")
and
- connections table (3.11.2
Warning
The installation diagram shows a non-return valve in the pump station. This
non-return valve may be used solely in closed (pressure) systems. In systems
with a drain-back tank, it is prohibited to fit a non-return valve in the solar
heating system.
Warning
The installation should be carried out by an authorised installation engineer,
in compliance with general and local regulations
Introduction
Topics covered in this paragraph:
• Preparation
• Connecting the mains voltage
Optionally, it is possible to connect an isolating transformer, a continuous pump,
a program-controlled pump, an extra ON mode switch and an extra alarm signal
to the appliance. For these options, see:
• Isolating transformer
• Connecting continuous pump
• Connecting a program-controlled pump
• Connecting an extra ON mode switch ("Tank ON")
• Connecting an extra error signal ('Alarm OUT' )
Connecting the solar heating system is also described:
• Connecting communication cable to solar heating system
Note
The optional components are not included in the rating for electrical power
consumption stated in the table
and the
"Preparation").
"Preparation").
(1.3 "Regulations").
(3.4.2 "General and electrical
and
specifications").
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