Unigas K890A, Руководство по установке, использованию и обслуживанию

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PART II: INSTALLATION
21
ctions preferred. Junction threads, elbow joints and couplings should be sealed with removable sg component. The number of jun-
ctions should be kept to a minimum as they are a possible source of leakage.

Do not use PTFE tape on the suction and return line pipes to avoid the possibility that particles enter circulation. These could depo-
sit on the pump filter or the nozzle, reducing efficiency. Always use O-Rings or mechanical seal (copper or aluminium gaskets) jun-
ctions if possible.

An external filter should always be installed in the suction line upstream the fuel unit.
1. Inlet G1/2
2. To the nozzle G1/2
3. Return G1/2
4. Pressure gauge port G1/4
5. Vacuum gauge port G1/4
6. Pressure governor
Connecting the oil flexible hoses to the pump
To connect the flexible oil hoses to the pump, proceed as follows, according to the pump provided:
1
remove the closing nuts A and R on the inlet and return connections of the pump;
2 screw the rotating nut of the two flexible hoses on the pump being careful to avoid exchanging the lines : see the arrows marked
on the pump.
For further information, refer to the technical documentation of the pump.
.
Diesel filters
ATTENTION : before the burner first start, it is mandatory to fill the adduction pipes with diesel fuel and bleed out residual
air bubbles. Prior to switching on the burner, check direction of rotation of the pump motor by briefly pressing the starter
switch; ensure there are no anomalous sounds during equipment operation, and only then turn on the burner. Neglect to
comply with this requirement will invalidate the burner warranty.
Suntec TA..
Oil viscosity 3 ÷ 75 cSt
Oil temperature 0 ÷ 150°C
Min. suction pressure - 0.45 bar to avoid gasing
Max. suction pressure 5 bar
Max. return pressure 5 bar
Rotation speed 3600 rpm max.
Suntec T+TV HP Technik UHE-A Suntec TA
Item Note Connection Max. operating
pressure
Max. operating
temperature
Filtering
degree
Protec-
tion
5 20151PE (*)
-
3/8” 1 bar -20, 60 °C 100
μ
-
6 20201PL (*)
-
3/8” 1 bar -20, 60 °C
100
μ
-
7 GA70501
-
1” 4 bar 90 °C 100
μ
IP65
(*) Supplied per pilot diesel fuel if present
R
A R
A
R A