FORM QCC3-EG1 (517)
QUANTECH
7
Control Center (Cont'd)
ENTRY
section to:
•
Enter
SETPOINTS
or modify
SYSTEM VALUES
SETPOINTS
updating can be per-
formed to:
•
Suction pressure setting
•
Suction pressure control zone
•
Remote reset temperature range
•
Set daily schedule/holiday for start/stop
•
Manual override for servicing
•
Low and high ambient cutouts
•
Number of compressors
•
Low suction pressure cutout
•
High discharge pressure cutout
•
Anti-recycle timer (compressor start cycle time)
•
Anti-coincident timer (delay compressor starts)
UNIT
section to:
•
Set clock
•
Set options
•
Set unit option
Set unit control for Discharge Air Temperature Control or for Suction Pressure Control
(requires Suction Pres sure Transducers – standard.
UNIT ON/OFF
switch
The microprocessor control center is capable of display ing the following:
•
Suction temperatures (optional)
•
Low ambient temperature cutout setting
•
Outdoor air temperature
•
English or Metric data
•
Suction pressure cutout setting
•
Each system suction pressure
•
System discharge pressure
•
Discharge Air Temperature Reset via a Quantech ISN DDC or Building Automation
System (by oth
ers) via:
•
- a pulse width modulated (PWM) input as standard
•
- a 4-20 milliamp or 0 -10 VDC input, or contact closure with the optional B.A.S.
interface option
Summary of Contents for QCC3
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