Pipework; Collector Couplings - Ariston SOLARcomfort Installation Instructions Manual

5.11 P
IPEWORK
5.12 C C
OLLECTOR OUPLINGS
16
The installation of pipework must be made in accordance with good
plumbing practice, the following points should be considered when installing

pipework.

1. Pipe runs should be chosen to give the shortest most direct route to
the storage cylinder, with minimum bends. Tight bends should be
avoided.
2. The falls of pipes should be arranged to allow the system to be drained
and vented.
Low points, when unavoidable, should be fitted with a drain.
High points, when unavoidable, should be fitted with a vent.
3. Where possible, all pipe runs should have a continuous slight incline
up to the highest point in the system to allow for natural venting of air
from the system.
4. The automatic air vent supplied with the system should be fitted to
the highest point i.e. near the flow connection of the collectors.
5. Adequate support and fixing should be provided for all pipework to
ensure that inclines are maintained and sagging is prevented.
6. Owing to the high temperature differentials within the solar circuit
consideration should be given to the expansion of the pipework, expect
up to 12mm on a 5 metre run. Pipes should be fitted with brackets
and devices that allow for expansion and contraction, rigid fixings
should be avoided.
7. A drain point must be fitted at the lowest point of the solar circuit. It
must be positioned at the down side of the non-return valve to ensure
the system can be fully drained.
Collectors are jointed together and connected to the pipework by 22mm
compression fittings.
These fittings connect to the 22mm spigots projecting each side of the
collector. The spigots are not fixed and can move in and out in relation to
the side panel of the collector to allow for alignment of the collectors. Owing
to this movement it is important to ensure each spigot penetrates the fitting
fully so that a correct join is made.
It is advised to make a pencil mark on each spigot 22mm from the end.
When the fittings are in position, these marks will show that the spigots
have fully penetrated the fitting - see fig. 5.12A.
This also applies to the two stop ends fitted to the collectors.
F . 5.12 C
IG A OLLECTOR
C
OUPLINGS