Electrically Connecting The Solar Heating System Controller - A.O. Smith SGE Installation And Operation Manual

3
3.11.6
3.11.7
3.11.8
3.11.9
3.12 Electrically
connecting the solar
heating system
controller
38
Installation
Connecting a program-controlled pump
1. Connect phase (L), neutral (N) and earth ( ) to terminals 10, 11 and 12 as
stated in the table (3.11.2
2. Fit the cable in the strain relief.
3. If you have no more connections to make:
- Fit the cap on the electrical terminal block.
- Fit the plastic covers onto the appliance.
Connecting an extra ON mode switch ("Tank ON")
Tank ON is a facility for connecting an external ON/OFF switch. In the OFF
position, the programmed operating mode is active. In the ON position, the
programmed operating mode is overruled, and the "ON mode" is active.
1. Connect cables (X and X
3
table (3.11.2 "Preparation").
2. Fit the cable in the strain relief.
3. If you have no more connections to make:
- Fit the cap on the electrical terminal block.
- Fit the plastic covers onto the appliance.
Connecting an extra error signal ('Alarm OUT' )
Alarm OUT is a potential free terminal that is switched when an error is
detected. This can be used to signal errors, for example with a lamp. A 230 V
circuit can be directly powered. Other voltages require a relay prescribed by
the manufacturer.
1. Connect the phase cables (X
the table (3.11.2 "Preparation"). If required, connect earth ( ) to terminal 15.
2. Fit the cable in the strain relief.
3. If you have no more connections to make:
- Fit the cap on the electrical terminal block.
- Fit the plastic covers onto the appliance.
Connecting communication cable to solar heating system
You must connect a communication cable between the controllers of the
appliance and the solar heating system.
1. Connect the cables (X5 and X6) to terminals 1 and 2 as indicated in the
table (3.11.2 "Preparation").
2. Fit the cable in the strain relief.
3. If you have no more connections to make:
- Fit the cap on the electrical terminal block.
- Fit the plastic covers onto the appliance.
Topics covered in this paragraph
• Preparation
• Connecting the mains power
• Connecting pump station - modulating pump
• Connecting solar collector
• Connecting tank sensor
• Connecting communication cable
Optionally you can connect an extra head pump and Q/T sensor:
• Connecting extra head pump
• Connecting Q/T sensor
"Preparation").
) to terminals 5 and 6 as indicated in the
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and X ) to terminals 13 and 14 according to
1 2
Instruction manual SGE
is