CPC Peripherals Installation and Operation - Emerson Climate ...

More documents

Recommendations

Info

Figure 28-Inside Temperature Sensor Mounting Outside (Ambient) Temperature Sensor The outside or ambient temperature sensor should be located on the north side of the building (for locations in the northern hemisphere), preferably under an eave to prevent sun-heated air from affecting the temperature at the sensor. For locations in the southern hemisphere, the temperature sensor should be mounted on the south side of a building in a similar fashion. The temperature sensor may be mounted using a rubber-lined tubing clamp. CPC also offers an aluminum cover and clamp which may be mounted as shown in Figure 29 (fasteners are not provided). Figure 29-Outside Temperature Sensor with Cover and Clamp Temperature Probe for Duct and Walk-In Box The 12-inch insertion temperature probe may be used to monitor temperature in either the supply or return air ducts of the AHU or RTU. The probe may be mounted in any orientation within the duct and should be secured using self-tapping screws. A 0.250” diameter hole is required for the probe. Figure 30 shows the installation of the insertion probe (self-tapping screws are not provided). Figure 30-12-Inch Insertion Probe Mounting Insertion and Immersion Probes The insertion and immersion temperature probes may be used to monitor temperature. Insertion probes are for use in ducts and are not to be used with liquids. The immersion probe is designed to be used in liquids and comes with an extra sheath. Drill a hole to accommodate the insertion or immersion probe’s sheath (tap if necessary). After creating the hole for the probe or sheath, screw the insertion probe or sheath directly into the hole that was created. Figure 31-12-Inch Insertion Probe Mounting After creating the hole for the sheath, screw the sheath into the hole. Be sure that a water tight seal is made for the 40 • Temperature Sensors 026-1701 Rev 0 01-05-98
immersion probe’s sheath. After mounting the immersion probe’s sheath, screw the temperature probe and housing into the sheath. Figure 32-Immersion Probe with Sheath Pipe Mount Sensors Bullet or pipe mount sensors mounted on refrigerant lines should be secured with low temperature cable tie, Panduit number PLT2S-M120, or equivalent. For pipe mount sensors, the curved surface should be placed against the pipe and the tie should be positioned in the groove on the top surface of the sensor. A second tie should be used to secure the lead to the pipe for additional support (leave some slack in the lead between the tie and the sensor block). Sensors located on refrigerant lines should be insulated to eliminate the influence of the surrounding air. A self-adhering insulation that will not absorb moisture is recommended to prevent icing at the sensor location. The sensor should be positioned on the side of a refrigeration line as shown in Figure 33 Figure 33-Sensor Orientation Other Sensors Supply and Return Air Sensors CPC uses the same temperature sensor used for outside and inside temperature to monitor supply and return air temperatures in HVAC applications. When used in this application, the sensors are supplied without enclosure covers. The sensors should be mounted directly in the air stream of the supply or return air duct. The sensors are not supplied with mounting hardware for this application. Refrigeration System Temperature Probes and Sensors CPC supplies several temperature monitoring devices including bullet sensors, pipe mount sensors, immersion probes, insertion probes, and sensors for high temperature applications. Each of these sensors is generally installed on the system by the equipment manufacturer. If a device must be added to the system, refer to the information supplied with the device and consult the refrigeration equipment manufacturer. Wiring Temperature sensors may be wired to any available point on the 16AI board. Temperature sensors are polarity insensitive. Wire one lead to an odd-numbered 16AI terminal, and wire the other lead to an even-numbered terminal. Once wired, the dip switch for the point to which the temperature sensor is wired must be put in the up position, since temperature sensors do not require power. Peripherals Manual Temperature Sensors • 41
Page 1: 026-1701 Rev 0 01-05-98 CPC Periphe
Page 5 and 6: Table of Contents INTRODUCTION.....
Page 7: OVERVIEW ..........................
Page 11 and 12: 485 Alarm Panel For 120/240 VAC-P/N
Page 13 and 14: ID ROCKER POSITION 1 2 3 4 5 1 UP D
Page 15: Operation 8. Release the Time/Date
Page 18 and 19: System Connections The RS232 Bus Am
Page 20 and 21: Figure 8 - System Indicator Lights
Page 23 and 24: Checkit Refrigeration System Monito
Page 25: The Checkit Sensor Setup screen for
Page 28 and 29: +485 0V -485 NET GREEN 1 2 3 4 5 6
Page 30 and 31: +485 0V -485 NET POWER AC1 0V AC2 1
Page 32 and 33: Figure 20 - Relative Humidity Senso
Page 34 and 35: Figure 22 - Relative Humidity Senso
Page 36 and 37: tion. However, it is likely that mu
Page 38 and 39: 3. Attach the white wire to the OUT
Page 40 and 41: Output Definitions ��
Page 42 and 43: The Eclipse ® pressure transducer
Page 45 and 46: Standard Pressure Transducers 0-100
Page 47: Temperature Sensors Overview CPC su
Page 53: Refrigerant Level Transducer Probe
Page 56 and 57: Matching Transformers to Boards Pow
Page 58 and 59: 3. On a 24 V AC line with the groun
Page 61 and 62: Sail Switches S437A-P/N 205-0437 S6

CPC Peripherals Installation and Operation - Emerson Climate ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?