Indoor Unit Temperature Sensing Strategy / Air Balance - LG Multi V water mini Series Installation Operation & Maintenance

PRE-COMMISSIONING

Indoor Unit Temperature Sensing Strategy / Air Balance

Indoor Unit Temperature Sensing Location Selection
For each indoor unit connected to a wired zone controller, select a zone temperature sensing option. Assign one of three methods for the
indoor unit to sense the zone temperature. Skip this step for indoor units controlled from a handheld (wireless) controller. Record the sensing
for each indoor unit on the Pre-commissioning Device Configuration Worksheet. There are three possible strategies:
1. Use the unit-mounted return air sensor (or the optional remote wall-mounted sensor).
2. Use the sensor mounted in the zone controller.
3. Sense the temperature at the unit-mounted return air sensor (or the optional remote wall-mounted sensor) and sensor mounted in the
zone controller, then control based on the temperature reading using the sensor that is farthest from set-point.
Conduct an Air Balance for Ducted Indoor Units
For each ducted model indoor unit, confirm that the Test and Balance contractor adjusted the fan speed setting values. Recorded the actual
fan setting value used to deliver cataloged CFMs at the jobsite static pressure conditions in the appropriate column on the Pre-Commission-
ing Device Configuration Worksheet. If the fan setting value was left at the factory default insert "00" in the blank.
Note:
It is always best if the air balance is completed prior to a request for a commissioning agent. If the air balancing contractor has not completed
the work before commissioning, the Commissioning Agent is not responsible for setting the indoor unit air flow rates, fan speed, or insure
the air volume delivered at each indoor unit is per project specifications, only to spot check. Excessive or restricted airflow may impact the
ability of the Commissioning Agent to successfully complete system commissioning. If problem exists, request verification from the Test and
Balance contractor. If necessary, provide instruction to the air balance technician on how to adjust the indoor unit fan setting value.
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Due to our policy of continuous product innovation, some specifications may change without notification.
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