Laserfiche WebLink
<br />]. <br /> <br />1. <br />1 <br />] <br /> <br />J <br /> <br />] <br /> <br />] <br /> <br />] <br /> <br />J <br />J. <br /> <br />J <br /> <br />] <br />[J <br /> <br />IJ <br /> <br />u <br /> <br />u <br /> <br />u. <br />u <br /> <br />3. Device Calibration Checks. The actuators or devices listed below checked for calibration. This is a spot <br />check on a sample of the calibrations done during field verification checklist and startup. <br />"In calibration" means observing readout in the BAS and going to theaetuator or controlled.device and veriJYing thai the BAS <br />reading is correct. For items out of calibration or adjustment, fix now ifeasy, via an offset in the BAS. or a mecbanicallix. <br /> <br />Device or Actuator & Location 1st Site Final BAS Pass <br /> Procedure I State BAS Value Observation Reading YIN <br />D.X. cooling stages control <br />Stage I I. Off Off Off Off y <br /> 2. On On Note 2 Note 2 <br />Stage 2 I. Off . Off " " " " <br /> 2. On On " " " " <br />Heating coil valve I. Closed 0"10 0% 0% Y <br />Position or command and 2. intennediate oosition 50% 50% 50% Y <br />Stroke. 3. Full onen 100% 100% 100"/0 Y <br />Relief damper position .. . I. Closed 0% Note 12 Note 12 N <br /> 2. Intermediate oosition 50% " " " " N <br /> 3. Full ooen 100"/0 " " " " N <br />Return air damper position .. 1. Closed 0"/0 0% 0% y <br /> 2. Intennediate """ition 50% 50% 50"/0 Y <br /> 3. Full ODen 100% 100% 100% Y <br />Outside air damper position.. I. Closed . . 0"/0 0% 0"/0 y <br /> 2. Intermediate OOsition 50% 50"/0 50% Y <br /> 3. Full onen 100% 100% 100"/0 Y <br /> <br />Set bealmg p\lU\pS to nonna! operating mode. Procedure 1. Command valve to a few positions. Verity thai readings in BAS reasonably <br />.correspond to the actual positions. For D.X. coolin2 control: Procedure 2. Lower dischatge air sel point to 20F below discharge air <br />temperaltrre. Verity BAS reading says DX cooling is staged on. Visually verity cooling relays are being called on. For bealin. coil <br />valves (NO): Procedure 2. Raise dischatge set point to 20F above<lischarge temperature. Verity BAS reading says heating coil control <br />valve is 100% open. Visually verity valve is 100% open. ForD.X. coolin. coil control Procedure 3. Set discharge air sel poinl to 20F <br />above dischatge air temperature. Verity BAS reading says D.X. cooling is staged off. Visually verity cooling relays are being called off. <br />For heatin. coil valves (NCl: Procedure 3. Sel discharge air gel point 10 20F below discharge air temperature. Verity BAS reading says <br />heating control valve is closed_ Visually verify valve is closed. <br />". Command damper closed and verity thai damper is shul and BAS reads shut. 2. Do the same; conunanding damper fully open. <br />"'VFD: Procedure 1. Verity that the minimum and maxim\lU\ speeds of the variable frequency drives match the building automation <br />system reading. <br /> <br />Notes:" Testing 01 AHU 112 was performed using HVACPm. <br />1. Main computer is not setup for alarms. U.N.T. c0ntr0lier is not programmed properly, pressure win always read O. <br />2. Unable to lest because of outside air temperature. <br />3. Supply fan status does not work. Slatus conIInually shows 00. <br />4. Return fan. (IF.2) has no points on controller. <br />5. Uni continues 10 operate K either fan fails. <br />6. Controller is not programmed for wann up mode. <br />7. Economizer mode is looked out 00 outside air temperature set point. <br />8. OX cooling is never locked out. outside air temperature is not being written to controller and set point lor lockout is at 20". <br />9. Low 11m. protection device is wired to the supply fan -.. point. No'- is generated. <br />10. Opening conlacts dIdn",hlll _ unit. No alarm is generated. <br />11. Main computer is not setup lor '-s. U.N,T. controller is not programmed ptoperIy, pressure will always read O.Filter status is <br />not on computer. <br />12 Reliel damper actuator is not 1nsIa11ed. Damper is installed and in the open position. <br /> <br />File: AHU2_FinaIReport.doc <br /> <br />Page 3 of 6 <br />