Unigas HTP90A, Installation, User'S, And Maintenance Manual, Page: 18 / 60

C.I.B. UNIGAS - M039219CA
18
NOTE: in plants where gravity or ring feed systems are provided, install an automatic interception device (see n. 4).
Installation diagram of light oil pipes
PLEASE READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNING OF THIS MANUAL.
Fig. 12 - Ring circuit
Fig. 13 - Suction circuit
Key
1 Manual valve
2 Light oil filter
3 Light oil feeding pump
4 One way valve
5 Flexible hoses
6 Relief valve
Fig. 14 - Double-pipe system
The burner is supplied with filter and flexible hoses, all the parts upstream the filter must be installed by the customer. As far as
the hoses connection, see the related paragraph.
.
Key
1 Burner
2 Flexible hoses (fitted)
3 Light oil filter (fitted)
4 Automatic interceptor (*)
5 One-way valve (*)
6 Gate valve
7 Quick-closing gate-valve (outside the tank or boiler rooms)
(*) Only for installations with gravity, siphon or for-
ced circulation feed systems. If the device installed
is a solenoid valve, a timer must be installed to
delay the valve closing.
The direct connection of the device without a timer
may cause pump breaks.
From tank
To tank