Filling Solar Heating System - A.O. Smith SGS - 100 Installation & Service Manual

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5.4 Filling solar heating
system
5.4.1
Instruction manual SGS
6. Completely fill the appliance. When a full water jet flows from the nearest
draw-off point, the appliance is full.
7. Bleed the entire installation of air, for example by opening all draw-off points.
8. The appliance is now under water supply pressure. There should be no
water coming out of the P-valve (23). If this does happen, the P-valve might
be defective or incorrectly fitted.
Filling solar heating system with glycol
Note
No special safety measures are required when working with the diluted
glycol solution specified by the manufacturer. For more information about the
fluid, please contact the manufacturer.
Warning
Before filling the solar heating system to replenish the heating fluid, make
certain that:
- The appliance is switched off
("OFF mode")").
- The solar heating system is switched off. Refer to the documentation of the
solar heating system.
- The appliance has cooled down sufficiently to prevent personal injury (burns).
Note
The filling procedure described in this manual is intended for the pump
system supplied by the supplier of the appliance. For any other system, you
should follow the procedure for that system.
Warning
To avoid contaminating the glycol, you should flush the solar heating system
through with water before filling.
Flushing with water
1. Connect a water supply to the filling point of the pump station.
2. Connect a drain hose to the drain point.
3. Open the taps of both supply and drain point.
4. Open the water supply tap.
5. Allow the system to spool through until no further contamination comes out
of the drain hose.
6. Then shut off the water supply.
7. Drain all remaining water from the system.
8. Now you can fill the system with glycol.
Filling with glycol
1. Insert the hose of the glycol pump into the jerry can containing the glycol.
2. Tighten the pump onto the jerry can using the swivel.
3. Connect the hose of the glycol pump to the inlet combination of the pump
station.
4. Open the valve of the inlet combination.
5. Plug the glycol pump into a mains socket.
6. Start the glycol pump using the ON/OFF switch on the glycol pump.
(10.2 "Shut the appliance down for a brief period
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