Viconics VT8600 Series, User Interface Manual

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Viconics Technologies Inc. www.viconics.com | sales@viconics.com | Tel: (514) 321-5660 | Fax: (514) 321-4150
028-0427-11 October 2018
4/11 Configuration
Frost protec.
Heating CPH
Cooling CPH
Off
4
4
BO1 aux. config
NO
Anti short cycle
2 min
64 °F Min sup. heat
CONFIGURATION 4/11
PARAMETER DETAILS
Configuration Parameters Default Value Significance and Adjustments
Cooling CPH
Default value: 4 CPH
Cooling Output Cycles Per Hour
CPH is used to “modulate” On/Off outputs controlling equipment such as
compressors. When the Room Temperature is within the Proportional Band, the
output performs 3 or 4 CPH. A higher CPH represents a higher accuracy of control at
the expense of wearing mechanical components faster.
Note : The CPH does not limit the number of Cycles Per Hour. It is limited by the “Anti
short cycle” parameter. 4 CPH is typical for Rooftop applications.
Range : 3 to 4 CPH
Heating CPH
Default value: 4 CPH
Heating Stages Cycles per Hour
CPH is used to “modulate” On/Off outputs controlling equipment such as
compressors. When the Room Temperature is within the Proportional Band, the
output performs 3 to 8 CPH. A higher CPH represents a higher accuracy of control at
the expense of wearing mechanical components faster.
For multi-stage models, heat cph applies to W1 & W2. A CPH value between 6 - 8 is
recommended for applications with electric heating. For gas applications set CPH to 4
and for oil applications set CPH to 3.
Range : 3 to 8 CPH