Setting Units - Johnson Controls LX-HPUL-1 User Manual

For these reasons, network variables that change infrequently (such as
nviSetPoint) are better candidates for persistence than others.

Setting Units

Measurement units are shown at the bottom of the Heat Pump Unit Controller
configuration wizard menu. Select the measurement units before you perform any
other tasks. When you change the measurement units, all unsaved information you
have entered into the HPU Controller configuration wizard is lost.
If you are using Imperial units of measure (such as degrees Fahrenheit, inches of
water, or Btu) please see the Units in L
Note: If you change your measurement system, all the SNVT format types also
change. The measurement unit you select in the wizard, either SI or
Imperial, affects the nvoHwInputx SNVT format type. Once you configure
an input through the wizard and select an SNVT Type, the format type is
written in the database and a change of the measurement system unit no
longer affects that network variable.
Input Configuration
When you configure inputs you set the signal type, signal interpretation, and the
SNVT that transmits the information over the network.
Inputs are configured from the sensor configuration wizard. Launch the wizard
from either the Heat Pump Unit Controller configuration wizard or the Hardware
Input L m object in the LX-HPUL Wizard view of the device.
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Figure 27: Inputs Configuration Window
LX Series Heat Pump Unit Controller User's Guide
W Networks section.
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