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UVC’s:
8/15/96
Subject: UVC Airflow alarm.
If the UVC
airflow alarm is programmed as active,
the alarm will occur if the input is open 1 minute after the fan
turns on. Once the airflow is
confirmed, it must open for 30 seconds for the airflow alarm to occur. Once the alarm occurs, it will attempt
to call out the alarm immediately.
If choice #49 (force outputs to emergency states) is set for Yes,
the outputs will respond. The
airflow alarm needs to be manually reset.
8/15/96
Subject: Using the FTS-3 or
FTS-3A without timed override.
If you do not
need to use the timed override function of a UVC or ETC, you can eliminate
the wires that go to terminals 5 and 6 of a Futura sensor, but you must put
a jumper wire between terminals 5 and 3 at the sensor for proper
temperature sensing.
8/15/96
Subject: Max discharge air
temp. reading of a UVC.
The discharge
air sensor of a UVC will read up to 144 degrees. Above that point, it will continue to display 144 degrees.
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Specifications/Installation
Instructions for the UVC/ETC Supply Air Temperature Sensor (RTS-UVC)
1/23/96
The Novar
UVC/ETC Supply Air Temperature Sensor is a precision electronic sensor
designed for use with the LOGIC ONE
Unit Ventilator Controller (UVC) and Electronic Thermostat Controller
(ETC). The sensor gets mounted in
the supply air stream of the controlled heating and/or cooling
equipment. It uses a two wire
signal cable to send its temperature signal to the UVC or ETC.
Specifications:
·
Wire Length: 6 feet, with sensing
element at the tip of the wire.
·
Sensor tip diameter: 1/4 inch
·
Range: 20 to 144 degrees F.
·
The sensor is permanently
calibrated at the factory and cannot be adjusted in the field.
Installation:
The sensing tip
and at least 6 inches of the wire leading to the tip are to be mounted in
the supply air stream of the controlled equipment. You may use tie-wraps or other suitable
mounting hardware to secure the sensor.
Choose a location where the outside and return air streams are well
mixed, to prevent a “stratified” temperature reading.
Wiring:
The RTS-UVC is a
two wire device. Connect the red
wire to terminal #5 and the black wire to terminal #4, of the UVC or ETC
terminal strip. The wire length may
be extended up to 100 feet if necessary, using a minimum of 22 gauge wire.
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9/10/96
Subject: UVC Dirty Filter Alarm.
The dirty filter
alarm of a UVC will occur 1 minute after the filter input closes. It will automatically clear at the next
schedule transition from Off to On.
This is to prevent repeated alarms as the fan cycles on and off
throughout the day, and should cause the dirty filter alarm to re-occur
only once per day (if it schedules on and off once per day).
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