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Factory-Installed Options (if equipped)
For units with manual damper, the outdoor air damper maximum position has been set.
For units with economizer, the outdoor air hood and hood screens have been installed and are clean.
For units with economizer, the outdoor air damper and return air dampers move freely without binding.
For units with power exhaust or barometric relief and vertical return, the relief hoods have been folded out, the damper/
exhaust system has been tipped up, and the barometric dampers are free to open.
For units with modulating power exhaust, pneumatic tubing with a space pressure pickup is installed on the high side port of
the building pressure transducer.
The pressure pickup pneumatic tubing is free from obstruction or kinks.
The exhaust fan(s) are free from obstruction and rotate properly.
Sensors/Controls
OAT and RAT sensors' locations have been reviewed and are reading accurately (relocate if necessary for accurate readings).
For units configured for space temperature control (SPT), a space temperature sensor is installed.
For units requiring thermostat control (TSTAT), a two-stage heat/cool thermostat has been installed.
The SAT sensor location has been reviewed and is reading accurately (relocate if necessary for accurate readings). For air-
side linkage applications with heating, the SAT sensor has been relocated to the supply duct downstream of the heat.
Air Balance
An air balance has been performed and the supply fan is operating at design airflow.
The minimum and maximum airflow limits (SP.MN, SP.MX) and heating min airflow (HT.V.M) have been programmed in
ComfortLink based on the system air balance results.
For VAV units, the supply duct static pressure set point has been programmed in ComfortLink.
For units with exhaust fan, an air balance has been performed
For units where air balance has been completed, include a copy of the air balance with the pre-start-up checklist.
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Troubleshooting
