Hardi ZENIT 400, Оригинальная инструкция

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5 - Operation
SB 3002 or SB 3004
The control box for SV ( Solenoid Valves )
The operating unit consist of 2 or 4 sections
The operating unit SV can be equipped with remote/electrical pressure
regulation or not. Most common specification of the operating unit is
with manual pressure regulation.
It is in all cases a non constant pressure operating unit, also expressed
as non pressure equalisation. This affect, when one section is closed
the pressure in the remaining spray line change.
1. Section valves
When up = off
When down = on
2. Pressure up & down - for less pr for higher pressure (an optional function).
SV operating unit
1. Manual pressure regulation, turn left for less pressure, right for
higher pressure.
2. The section valve. No adjustment is needed.
SB 3012 or SB 3014 etc.
Are the control boxes for motorised operating units The operating unit CB2 CB4 etc.
A constant pressure operating unit, allows to turn off one section, and maintain the pressure constant.
1. Section valves
When up = off
When down = on
2. Pressure up & down, - for less pressure and + for higher pressure.
1 1 2
1
2