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Chapter 4: E2 Controller
4.5.2.10 CW Valve Status
This screen displays “Req,” the value of the analog output signal (0 to 100%)
that controls the position of the CW valve and it displays “Act,” the
approximate position (0 to 100%) of the valve. The bar gauge provides a
visual representation of the output signal and the valve position. The CW
valve “Act” position is estimated based upon the amount of time the valve is
signalled to actuate toward the open or the closed position. A status message
appears in the field to the right of the gauge indicating the various states of
valve operation. In the example shown, “Ramping” indicates the valve is
moving toward the position requested by the analog output signal. When the
valve % position matches the analog signal % value, the status changes to
“OK.”
4.5.2.11 Fan Status
The Fan Status screen displays symbols indicating the operating status of the
upper, middle, and lower fans. The symbols are animated when the fans are
running. If a fan is not running, the symbol will appear instead. The value of
the proportional output signal (0 to 100%) that controls each fan appears in
the field to the right of each symbol.
The message "Var from Avg" or "Temp Prop" appears indicating the system
is in a zone cooling control configuration (see Section 4.4.4.1) and the unit is
in the cooling mode. The message in the field is replaced with “Dehum”
when the system is in the dehumidification mode. In the dehumidification
mode the animated icons are linked together indicating the three fans are
being controlled to the same fan speed setting. The controller also displays
the temperature value for the sensor from each fan zone.
If the system is configured for static pressure control (see Section 4.4.4.2), the
Fan Status screen displays the current operating static pressure in m.i.w.g. in
the first field. The message fields say "Static Pres" indicating the system is
configured for static pressure fan speed control. The animated icons are linked
together indicating the three fans are being controlled to the same fan speed
setting for static pressure control.
4.5.2.12 Group Information Menu Screens
The Group Information menu screens only appear if the controller is set up to
operate multiple A/C unit work groups. See Section 4.6.2.8 for a more
detailed description of these screens.
Confinued from previous page
Figure 4-21 (Continued). Information menu loop.