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EN • 17
ENFRRU PL DE IT ES NL
Delta Pro S / Delta Pro Pack : 664Y4900 • E
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HEATING CONNECTION
EXAMPLE OF A BASIC CIRCUIT CONNECTION
1. Four-way motorisable mixer valve
(as standard on Pro Pack)
2. Circulator (as standard on Pro Pack)
3. Heating isolating valve
4. System filling valve
5. 3 bar heating safety valve
(as standard)
6. Primary expansion tank (as standard on Pro Pack)
7. Control unit (optional)
8. Drain down valve (as standard)
INSTALLATION
DRAIN VALVE
The safety valves must be connected to the drain.
DELTA PRO PACK HYDRAULIC KIT
This hydraulic kit is factory assembled on Delta Pro Pack 25 and Delta Pro
Pack 45 models comprising:
A circulator with automatic air eliminator built in.
A four-way manual motorisable valve (servomotor available as an option).
A primary 12 litres expansion tank.
A hot water 2 litres expansion tank.
OIL SUPPLY FOR ACV BURNERS
Supply construction and installation must be in accordance with current
regulations.
For further information regarding the oil supply, please
consult the technical manual supplied with the burner.
If a different burner is installed, please refer to the
manufacturers technical manual.
GAS SUPPLY FOR ACV BG 2000S BURNERS
- The Delta Pro S & Pro Pack boilers combined with an ACV BG 2000-S
burner have a Ø 3/4” [F] gas connection for connection of a gas supply valve.
- The gas connections must comply with all applicable standards (in Belgium:
NBN D51-003).
- If there is a risk of dirt stemming from the gas network, place a gas filter
upstream of the connection.
- Purge the gas pipe and carefully check that there are no leaks on the boiler’s
internal and external pipes.
- Check the system’s gas pressure. Please refer to the technical data table.
- Check the gas pressure and consumption when commissioning the
appliance.
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