DAYLIFF ULTRASUN UFD320DL Installations- und Betriebshandbuch - Seite 9
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5. INSTALLATION
Ultrasun UFD solar heaters are provided with drilled frames incorporating a support cross
bar. On roofs the preferable mounting arrangement is by means of hooks affixed to the
cross bar and secured to an appropriate mounting point on the roof beams. Suspension
from the hooks is generally sufficient and fixed location is not necessary.
For ground installation rear support legs are available which should be mounted on small
concrete feet as shown below:-
TRUSS
ROOF INSTALLATION
The units can be installed using a gravity system or pressurised supply. Pressurised systems
are preferable as they give higher line pressures up to a maximum of 3.5 Bar. Note that in
the case of pressurised supply hot and cold lines must be pressurised at the same pressure
to ensure even temperature control. The systems are easy to plumb being provided with two
piping connections only, the inlet and outlet. It is important to fit a non-return valve and
isolating valve on the inlet line. Suggested installation layout arrangements are shown
below:-
Cold In
PUMPED SUPPLY
FROM TANK
Hot
Cold In
Water
Supply
Cold
Water
Supply
DIRECT PUMPED SUPPLY
WITH COLD WATER STANDBY
HEADER TANK
GROUND INSTALLATION
Hot
Water
Supply
Cold In
Cold
Water
Supply
6
Cold
Hot
In
Water
Supply
Cold
Water
Supply
GRAVITY SUPPLY