a.Pneumatic signals:
b.Electric signals: 4 to 20 mA
2.Span (calibration) and start point shall be fully adjustable.
E.Indicating Gauges and Test Ports:
1.
2.Test ports on the air lines connected to a differential air pressure sensor shall consist of a tee in the line with a removable cap on the branch port. Test ports on water lines connected to a differential pressure sensor shall consist of a 1/4” size,
3.Permanent indicating gauges shall be furnished for all pneumatic transducer, EP, controllers and relay outputs used to position actuators, valves or PE switches. Gauges shall be in local control panels when applicable. One main (supply) air pressure gauge shall be installed in each local control panel.
F.VAV Box Controls:
[Note to Consultant: Include this information in the VAV equipment specification. It is the intent that the VAV box supplier provide a complete controls package utilizing the controller listed below. In general, the Temperature Controls Contractor should not have to provide any additional hardware, but should be required to set them up and troubleshoot problems with them if necessary.]
1.Electric VAV box controls shall be configured to meet the specified sequence of operation. All hardware necessary to meet the sequence of operation shall be pro- vided. Coordinate with supplier of VAV box. (No pneumatic)
2.The Controls Contractor shall check, calibrate and setup all VAV box controllers, and be responsible for their operation. This applies whether the controls are provided by the Mechanical Contractor as part of the VAV box or the Temperature Controls Contractor.
3.Provide assistance to the Test and Balance Contractor in making adjustments to the controls.
4.See VAV box specifications for controller information.
2.09CONTROL DEVICES - ELECTRIC A. Room Thermostats:
1.All
JANUARY 2008 | UCCS STANDARDS |
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