Servomotor; Pump - Riello RLS 28 Installation, Use And Maintenance Manual

ORANGE CAM
BLUE CAM
RED CAM
RESET
(A)

PUMP

SUNTEC AL 65
AL 65
A GPH 21.5
B PSI 58 - 261
C PSI
D cSt 2 - 12
E °F - °C 140 - 60
F PSI
G PSI
H inch 0.006
(B)
D2522
6.5
29
174
SERVOMOTOR (A)
The servomotor adjusts the air damper.
The servomotor rotates through 90° in 25 seconds.
Do not alter (for the time-being) the factory setting.
Blue cam
Sets the position of the air damper during low fire opera-
tion.
Red cam
Sets the position of the air damper during high fire oper-
ation.
Orange cam
Establishes when the high fire gas or fuel oil valve opens.
It must always operate (just) before the red cam and after
the blue cam.
PUMP (B)
1 - Suction
2 - Return
3 - Pressure gauge attachment
4 - Vacuum gauge attachment
5 - Pressure regulator
A - Min. delivery rate at 174 PSI pressure
B - Delivery pressure range
C - Max. suction pressure
D - Viscosity range
E - Max fuel oil temperature
F - Max. suction and return pressure
G - Pressure calibration in the factory
H - Filter mesh width
D2542
8
1/4" NPT
1/4" NPT
G 1/8"
G 1/8"