Service manual

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Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 2.0
Section 6 • Compressor Control
Figure 6-11. Compressor Control Screen - Misc. 2 (Economizer & Hot Gas Bypass Control)
Capacity Slide Triggered Outputs
The Vission 20/20 offers two digital outputs that can be
triggered at a specifi ed capacity slide position. By de-
fault, the outputs are preselected for economizer and
hot gas bypass. However, these preselected outputs are
customizable by the operator, see Figure 6-11.
Slide Valve Setpoint:
• Operator editable labels for the each output. Only
Economizer Port 2 Label is non-editable.
Slide %:
• Indicates the capacity slide position where the digital
output is triggered.
State Below Setpoint:
• Defi nes the state of the digital output when the slide
position is below the “Slide %” setpoint. The operator
can choose between “N.O.” or “N.C.”. This setpoint
is not available for Economizer Port 2, so Economizer
Port 2 follows the setpoint of Economizer Port 1.
Active:
• Check box to enable the digital output. There is no
check box for enabling Economizer Port 2 digital
output. Economizer Port 2 digital output is enabled
when Compressor type selected from confi guration
screen is “VSM7” and Economizer Port 1 digital out-
put is enabled.