Specifications - City of Montpelier, Vermont

Title:Montpelier District HeatingCity of Montpelier, VT15990 – Testing, Adjusting, and BalancingIssue Date:September 28, 2012Page #:10 of 11C. Heating Terminal Units: Review and document the installation of heating andcooling terminal units. Note that units are installed level, drain pan has properslope, and fan operation is unrestricted.3.7 CONTROLS COMMISSIONINGA. General: The testing and balancing subcontractor or other entity independent ofthe controls installer must perform this work. Coordination with the controlsinstaller is required. The general intent is to take field measurements and makeother observations to verify that the control system is calibrated and operatingproperly.B. Air Handling Units: Provide a field measurement to confirm the control systemcalibration of all temperature sensors, humidity (including enthalpy) sensors,pressure sensors, and flow sensors. Include sensors mounted beyond the AHUsuch as outside air temperature sensors, duct static pressure sensors, etc. Performthis work in the presence of the controls installer. Record the measured value andobserve and record the value sensed by the control system.C. Hydronic Heat Exchangers: Provide a field measurement to confirm the controlsystem calibration of all temperature sensors, pressure sensors, and flow sensors(where included). Perform this work in the presence of the controls installer.Record the measured value and observe and record the value sensed by thecontrol system.D. Heating Terminal Units: On all heating/cooling terminal units, manually operatethermostat and observe that control valve and fan (where included) reacts in aproper manner to a call for heating or cooling. Where room sensors do not havemanual control, use a hair dryer or other means to force a control system reaction.1. On all heating/cooling terminal units, provide a field measurement toconfirm the control system calibration of room temperature sensors.Perform this work in the presence of the controls installer. Record themeasured value and observe and record the value sensed by the controlsystem.3.8 RECORD AND REPORT DATAA. Record all data obtained during testing, adjusting, and balancing in accordancewith, and on the forms recommended by the referenced standards, and asapproved on the sample report forms.TESTING, ADJUSTING, AND BALANCING1599010