Regulus KPC1-BP, Инструкция по установке и эксплуатации

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10.3 Air bleeding
• with the fi lling pump running, close the bleed valve and increase the pressure up to about 5 bar
• close the feed valve and turn off the fi lling pump, open the regulation screw on the fl owmeter (groove
horizontally), do not disconnect the fi lling-pump hoses!
• set the circulation pump(s) to the highest speed and repeat switching on and off to air-bleed the system (an
air-free pump works almost noiselessly)
• watch the system pressure and when it starts falling, increase it by turning on the fi lling pump and opening the
feed valve to 5 bar
• repeat air bleeding so long until the fl oat in the fl owmeter‘s regulation valve takes a steady position during
pump operation and bubbles stop appearing in the fl owmeter. After that, let the circulation pump run for at least
5 minutes.
• in case an automatic air vent/s is/are used anywhere in the solar system, close this valve after air bleeding.
10.4 Leak test
• examine the whole system at 5 bar pressure (all connections, solar collectors, valves etc.), no visible leaks are
allowed. Leave the system under pressure for at least 2 hours, then examine the system repeatedly.
• consider the test result successful if no leaks appear and/or no noticeable pressure drop appears in the
system
• set the working pressure by point 8.2 Calculation of a system working pressure
• set the pump to a suitable speed and set the fl ow by the fl owmeter and data in Tab. 1 on page 18
• disconnect the hoses of the fi lling device and screw caps on the feed and bleed valves
• open entirely the ball valve above the pump
• after several days of operation, air-bleed the system again
Do not fl ush the system with water.
Since it is impossible to empty it completely, a risk of frost damage appears.
11 Commissioning
• adjust the solar regulator according to the respective instruction manual
• remove collector covers
• place a suf
fi ciently sized vessel (to hold the entire solar fl uid volume) under the outlet of the safety valve
• check if the circulation pump switches when the preset temperature difference between solar collectors and
secondary circuit is reached
12 Operation, Checks and Maintenance
The solar system offers unmanned and almost maintenance-free operation. Despite that, it is important to check
the right functioning of the system within the
fi rst days of operation. First of all the temperature, system pressure
and pump operation shall be checked. Once a year, preferably during a sunny day, it is necessary to check
the working order and tight
fi xing of the collectors, verify the system tightness and pressure (incl. pressure in
the expansion vessel) and the pump operation. At least once in every 2 years the heat carrying fl uid shall be
checked for its antifrost properties. The system shall be always replenished with the same fl uid as the original
fi lling was.
The system must not be replenished with water.