Installation & Servicing instructions
AT
AG XL
16
6
Hydraulic and gas pipe line system
6.1 Heating system
Install the CH-system in accordance with present legislation.
The pipe work headers are available in 2 dimensions, i.e. DN65 and DN100 and are
connected to one another by the flange couplings and gaskets, M12 or M16x55 bolts,
spring washers and nuts. The low velocity header and the complete installation can then
be connected to it.
Low velocity header
There are 3 low velocity headers available:
AX00470U Low velocity header for 1 or 2 XL boilers to max. 200kW (fig. 6.1.a)
supplied with automatic air vent, drain valve and pocket for temperature sensor T10
Boiler connections are 4x 1 ½”, installation connections are 2x 2”. The low velocity
header MUST be connected between the boiler[s] and the system pumps.
AX00120U Low velocity headers DN65 to 452kW (fig. 6.1.b)
AX00130U Low velocity headers DN100 to 960kW
The low velocity headers comes standard with adjustable feet, automatic air vent,
drain valve, pocket for temperature sensor T10, M12 or M16x55 bolts, spring washers
and nuts. The low velocity header can be positioned on either the left or right hand
side of the pipe work headers.
AX00630U Flow temperature sensor T10 (fig. 6.1.c)
Every system with 1 or more XL-boilers must be provided with a flow tempera
-
ture sensor T10 and must be connected on the master boiler (address 01) to
terminal 3, position 5 and 6. The flow sensor must be placed in the pocket of the
low velocity header.
Set of bends
The low velocity header can be positioned at a 90° angle. A set of bends may be used
for that purpose.
AX00300U Bends set DN65 flow/return (fig. 6.1.d)
AX00310U Bends set DN100 flow/return
Blanking flanges
The ends of the pipe work headers have to be fitted with blanking flanges. The blanking
flanges come standard with a fully configured delivery, including bolts, spring washers
and gaskets.
AX00320U Blanking flange set DN65 flow/return 2 items (fig. 6.1.e)
AX00330U Blanking flange set DN100 flow/return 2 items
Welded-on flanges
Upon request, welded-on flanges are available to connect CH-pipe lines to the secondary
side of the low velocity header and to connect the gas line.
AX00680U Welded-on flange set DN65 flow/return 2 items + DN50 gas 1 item (fig. 6.1.f)
AX00690U Welded-on flange set DN100 flow/return 2 items + DN65 gas 1 item
Figure 6.1.b
Figure 6.1.d
Figure 6.1.e
Figure 6.1.f
Figure 6.1.c
Figure 6.1.a
