Installation & Servicing instructions
AT
AG XL
21
Final discharge options.
The condensate pipe can only terminate into any one of the five areas as shown in the
diagrams on this page.
Draining of the condensation water to the external rain guttering is not
permitted in view of the danger of freezing.
Before putting the boiler into operation fill the siphon with 600 ml of water.
A -Condensate from boiler siphon/trap
B -Sink with internal overflow
C -25mm dia. Plastic condensate pipe
D -External drain or gully
E -Internal soil and vent stack.
F -Serviceable condensate trap (75mm min.)
G -300mm x 100mm dia. sealed plastic tube.
H -Ground level
J -Drainage holes facing away from the building
K -Lime stone chippings
L -Weather resistant insulation
Drain requirements
figure 6.4.c
