Commissioning Instructions

Step 7 – Default values

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A6V12035398

Supply air VAV

If the area being served by the DXR is required to provide Demand Control Ventilation

(DCV), then the following Supply Air VAV default values MUST be modified.

Step 1: Check the Supply air VAV max.air vol.flow f.vent for “Avail. on AS”. The

value for DCV should be based on the maximum ventilation airflow rate of 15

CFM/person x number of people in room (e.g., 12 people x 15 CFM/person =180

CFM).

Step 2: Make sure Supply air VAV min. air vol.flow f.vent has the default value set

to 0. (This allows the min setpoints for each occupancy mode, as set in the ventilation

section above, to be in effect.)

Extract air VAV

If the area being served by the DXR is required to have the extract air track the supply

air volume or supply air setpoint (as above), then the following Extract air VAV default

values MUST be modified.

Step 1: Check the box for Extract air VAV max.air vol.flow f.vent for "Available on

AS".

Step 2: Make sure the Extract air VAV min. air vol.flow f.vent has the default value

set to 0.

Step 3: Check the box for Room pressurization mode for “Avail. on AS”.

Step 4: Check the box for Supply air VAV Air volume flow relief for “Avail. on AS”.

Step 5: Set Nominal air volume flow to 0 to allow the percent flow calculations to be

based on the values entered for Max flow setpoints (Max cooling, Max heating, Max

vent).