48
1.9
Operations to close flow and return taps
To close the flow-return circuit between collectors and boiler, proceed as follows:
• Reach the control panel of the ‘Master’ boiler of the cascade.
•
Set the system to ‘OFF’ to turn off the boiler burner.
• Close the gas tap.
• Wait the end of the post-circulation step of the pumps.
• With pumps stopped, turn the tap with blue knob on the return collector - boiler return section clockwise.
•
With pumps stopped, turn the tap with red knob on the flow collector - boiler flow section clockwise.
•
The knobs must be fully rotated
.
• Now the system between collectors and boiler can be considered as disconnected.
Blue knob
Red knob
1.10 Pump matching
-
Generator model
-
45
60
85
120
150
Yonos para RS 25/7.5 PWM - 7.5 m
X
-
-
-
-
Stratos para 25-1 / 8 T10 PWM - 8 m
ok
X
-
-
-
Stratos para 25 1-11 PWM - 11 m
ok
ok
X
-
-
Yonos para HF 25 - 12 AUTO - 12 m
ok
ok
ok
X
X
Tab. 1 Pump matching
X
=
minimum recommended matching (standard supply with the hydraulic unit)
ok = possible matching