Ferro GPA II Installation And Operation Manual page 57

Suggested pump settings:
• AUTO mode is used to automatically adjust pump performance according to ac-
tual heat demand of the system. Because performance adjustment proceeds
gradually, it is suggested that the pump be set in AUTO mode for at least one
week before you customize the settings.
• GPA-II series motor pump can continue automatic performance adjustment ac-
cording to stored settings with the last settings of AUTO mod (if selected)
• The pump can switch from the optimum settings to other customized settings.
• Heating systems are slow performance systems which will not reach the op-
timum capacity in minutes or hours. If the optimum mode cannot provide the
desired heat distribution for each room, change the pump settings.
• The relationship of the pump settings and performance curve: see Section 10. 1.
8. BYPASS VALVE SYSTEM INSTALLED BETWEEN INLET WATER PIPELINE AND
RETURN WATER PIPELINE
8.1. Application
1
3
BYPASS
BYPASS
BYPASS
BYPASS
Q min
Q min
Q min
Q min
AUTO
AUTO
AUTO
AUTO
2
EN