Commissioning; Operation; Maintenance - meibes UK Instructions De Montage Et De Fonctionnement

2.5 Commissioning

1. Check the leak tightness of the system
2. Flush, fill and bleed the pipework (with filling water in accordance with VDI 2035).
Warning!
Once the boiler or tank has been filled and has undergone a pressure and leak-tightness test, the heating circuit may only be operated by
opening the ball valve in the supply line, because the overpressure (test pressure) in the boiler/tank could damage the backflow preventer
in the backflow ball valve.
3. Select the appropriate recirculation pump setting.
4. Check the functions

2.6 Operation

Please note the application limits:
• Permissible media: Heating water (in accordance with VDI 2035, non-corrosive), max. glycol
• content: 50%
• Permissible pressure rating: PN6
• Permissible temperature of the medium: 0-110°C
Room temperature 5°C to 70°C for UK(-Z) and separation system (non-condensing)
Room temperature 5°C to 50°C for MK(-Z) and constant heat regulation set (non-condensing)
Prevent oxygen from entering the medium.

2.7 Maintenance

The pump groups are maintenance-free. We recommend performing regular leak-tightness tests.
Thermometer
The thermometers are simply inserted and can be removed easily.
It should be ensured that any thermometer that is removed is replaced with a similar one.
Please observe the colour coding. (Red lettering = SL; blue lettering = RL)
The thermometers are not suitable for taking exact measurements. The display can
be adjusted by rotating the groove on the measurement element.
Pumps
Pumps can be exchanged without having to drain the entire heating system. Close the pump ball valve and mixer. In the case of the mixer,
the bypass must be closed and the shaft rotated so that the flat face points in the direction of the closed side.
Note
The closed mixer is not 100% leak-tight. Any drops can be caught by an absorbent cloth or bucket.
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