9
5
Order, delivery and assembly
5.1
Order
In the order the following is needed to be specified:
1.
Boiler design
- VIADRUS U 22 C boiler
- VIADRUS U 22 D boiler
2.
Boiler size.
3.
Demands on optional accessories.
5.2
Delivery and accessories
The boiler is delivered according to the order in a manner that a complete boiler drum is located on the palette and a covered boiler jacket is
fixed on the side. The accessories are stored inside the boiler drum and is available after opening the stoker hole. The boiler is covered in the
transfer packing and must not be turned over during the transit, only a declination into sides for taking down of the boiler drum packing is
allowed.
Standard accessories for the boiler:
•
cleaning tools (hook, brush with shaft, point, hanger)
•
control box
1 piece
•
thermomanometer
1 piece
•
impregnating and clearing plug Js 1/2“
1 piece
•
draught regulator complete
1 piece
•
closure Js 6/4“
2 pieces
•
rod with a control handle of the
smoky flap
1 piece
•
control label of the smoky flap
1 piece
•
stifling screw
1 piece
•
connecting pin of the jacket
4 pieces
•
fan-shaped washer 5
4 pieces
•
nut M5
4 pieces
•
washer 10,5
8 pieces
•
nut M10
8 pieces
•
flexible pins 3 x 26
1 piece
•
split pin 2,5 x 32
1 piece
•
washer 10,5
3 pieces
•
bushings HEYCO
2 pieces
•
blind flanges
6 pieces
•
screws into metal C 4,8 x 13
4 pieces
•
flange of heat water DN 50
1 piece
•
flange of returnable water DN 50 with a socket Js 1/2“ for impregnating and clearing plug
1 piece
•
well of thermostat
1 piece
•
sealing
φ
90 x 60 x 3
2 pieces
•
operating key
1 piece
•
hook
2 pieces
•
socket 8 mm
2 pieces
•
boiler operation and installation manual
5.3
Assembly techniques
Every heat source in an open heat system must be connected with an open expansion tank positioned at the highest point of the heat system.
The expansion tanks must be rated in the way that they can contain the changes in water volume resulting from heating and cooling.
The open expansion tanks must be equipped with non-closable bleeder and a overflow pipes. The overflow pipe must be designed in the way
that it safely drains off the maximum flow volume entering the system. This can be achieved by rating the overflow pipes by one DN higher than
that of the filling piping. The expansion tanks and their connecting pipes must be designed and positioned in the way that freezing is reliably
inhibited.
Fig.
№
. 6
The examples of open expansion tanks connection
1 Heat source
2 Expansion tank
3 Safety piping
4 Expansion piping
5 Overflow piping
6 Filling piping
7 Water level limiter
8 Reverse piping
