Hardware Installation Guide

Transcription

1 Hardware Installation Guide Toll-free: Tel. International: Allure EC-Sensor Series: Space temperature sensors. Product Description. General Installation Requirements The Allure EC-Sensor series of analog wall sensors is designed to interface with controllers of fan coil, heat pump, roof top and terminal heating / cooling units. These sensors provide precision local temperature measurement with the capability of local setpoint adjustment, fan speed setting, and occupancy override. Each sensor in this series has internal communications terminals to connect it to a LON or BACnet network. In addition, a built-in communications jack exists, allowing a user to connect a computer to the communication network without having to open the sensor s cover. In addition, through this communication jack, an EC-Smart- Sensor-VAV can be used as a hand-held balancing tool to perform VAV airflow calibration. The EC-Sensor s modern, alluring profile enclosure is suitable for classrooms, hotels, executive areas, office spaces and other commercial areas. Mounting hardware with a separate sub-base is provided with the device for installation on a dry wall or on an electrical junction box. This document describes the hardware installation procedures for the following device models: EC-Sensor, EC-Sensor-O, EC-Sensor- S, EC-Sensor-SO, and EC-Sensor-SOF. Unless otherwise indicated, the term EC-Sensor will be used in this document to represent all the models of the Allure EC-Sensor Series. For proper installation and subsequent operation of the EC-Sensor, pay special attention to the following recommendations: - Upon unpacking the product, inspect the contents of the carton for shipping damages. Do not install damaged sensors. - Allow for proper clearance of device enclosure and wiring terminals for easy access, hardware configuration and maintenance. - The device is designed to operate under the following environmental conditions: Ambient temperature from F to F (0 C to 0 C) Relative humidity from 0% to 90%, non-condensing. - Ensure proper ventilation of device and avoid areas where corroding, deteriorating or explosive vapors, fumes or gases may be present. The device must be oriented with the ventilation slots towards the top to permit proper heat dissipation. Any type of modification to any Distech Controls product will void the product s warranty. Take reasonable precautions to prevent electrostatic discharges to the device when installing, servicing or operating it. Discharge accumulated static electricity by touching one s hand to a securely grounded object before working with the device.. General Wiring Recommendations Turn off power before any kind of servicing. - All wiring must comply with electrical wiring diagrams as well as national and local electrical codes. - To connect the wiring to the device, use the terminal connectors which are located inside the device s enclosure. Use a small flat screwdriver to tighten the terminal connector screws once the wires have been inserted. - The board connectors accept wires or flat cables ranging from to AWG ( mm diameter) per pole. - It is recommended that all terminals be wired by 8AWG wire except for network communications. Figure -: EC-Sensor-SOF Distech Controls quality management system is ISO 900:000 certified

2 . Mounting Instructions. Device Components The EC-Sensor has been specially designed for easy installation. However, certain conditions apply when choosing a suitable location for the device: - Install the device in a location of average temperature approximately ft (. m) above the floor - The device should not be installed on an exterior wall. - The device should not be installed near a heat source. - The device should not be installed near an air discharge grill. - The device should not be installed in a place where it can be affected by the sun. - Install the device in an area that provides proper device ventilation. Nothing must restrain air circulation to the device. The EC-Sensor has not been designed for outdoor use. Wall Mounting Installation Procedure The EC-Sensor can be mounted on a dry wall using supplied screws. Remove the security screw from the device (Figure -).. Open the device by pressing in the two () tabs on the bottom of the device and pulling the bottom side of the front plate out.. Pull all cables 6 out of the wall, and insert them through the central hole of the back plate.. Align the back plate with the wall and mark the location of the mounting holes on the wall. Make sure to orient the proper side of the back plate facing upwards.. Remove the back plate and drill holes in the wall if necessary. 6. Install anchors in the wall if necessary. 7. Make sure that the mounting surface is flat and clean. 8. Screw the back plate onto the wall. Do not over tighten. 9. Strip each wire ¼ and insert each one according to the wiring diagrams shown in this document. 0. Gently push excess wiring back into the wall.. Reattach the front plate and make sure it clips tightly into place.. Install security screw. Electrical Junction box Installation Procedure The EC-Sensor can be mounted most American, European and Asian style electrical junction box using screws.. Remove the security screw from the device (Figure -).. Open the device by pressing in the two () tabs on the bottom of the device and pulling the bottom side of the front plate out.. Pull all cables 6 out of the wall, and insert them through the central hole of the back plate.. Screw the back plate onto the electrical junction box.. Strip each wire ¼ and insert each one according to the wiring diagrams shown in this document. 6. Gently push excess wiring back into the electrical junction box. 7. Reattach the front plate and make sure it clips tightly into place. 8. Install security screw. Figure -: Mounting a Smart-Sensor 6. Device Dimensions Unit Legend: mm (inches) Figure 6-: From top left to bottom: Front view, back plate, side view Toll-free: Tel. International:

3 WIRELESS HIGH 6 7. Device Wiring The EC-Sensor has physical connections for up to four () different features depending on the model. These features include the following: Thermistor Setpoint potentiometer Status indicator Fan speed rotary switch Wiring the 0kΩ Thermistor Terminals and MON are used for the 0kΩ type NTC thermistor, as well as for the override button (not available on EC-Sensor and EC-Sensor-S models). These two terminals are present on every EC-Sensor model. Input MON Figure 7-: 0kΩ NTC Thermistor input NTC Thermistor 0kΩ Override Button The override button creates a short circuit on the controller input, which is interpreted as an override signal. Wiring the 0kΩ Thermistor and the Setpoint Potentiometer Terminals and MON are used for the 0kΩ setpoint potentiometer. These terminals are present on the EC-Sensor-S, EC-Sensor-SO, and EC-Sensor-SOF models. Inputs MON NTC Thermistor 0kΩ Potentiometer 0kΩ Override Button Figure 7-: 0kΩ NTC Thermistor and setpoint potentiometer inputs Wiring a Status indicator Terminals and MON are used to connect a controller output to the status indicator. These terminals are present on the EC-Sensor-O, EC-Sensor-SO, and EC- Sensor-SOF. Vdc Output UO MON Figure 7-: Status indicator output Wiring a Five-Position Fan Speed Rotary Switch Terminals and MON are used to connect the five internal preset resistance values of the fan speed rotary switch to a controller input. These terminals are present on the EC-Sensor-SOF model. The following table shows the five fan speed settings and their corresponding resistance values. MON -position rotary switch Figure 7-: Five-position fan speed input resistors.kω.0kω 7.kΩ 0.0kΩ Wiring a EC-Smart-Sensor to a VAV for Air Flow Balancing (LON controllers only) The communications terminals ( and ) within the EC-Sensor can be connected to the and SMRTinputs of a VAV and facilitate VAV balancing with an EC- Smart-Sensor-VAV. In such a case, the EC-Sensor s communications jack would have to be used. To wire an EC-Smart-Sensor-VAV to a VAV via an EC- Sensor do the following:. Remove the front plate of the EC-. Connect the communications terminals ( and ) to the and SMRT- terminals of the VAV controller.. Remove the back plate of the EC-Smart-Sensor-VAV.. Connect the two () wires that terminate with the ⅛" audio cable to the and SMRT terminals of the EC-Smart-Sensor- VAV.. Insert the ⅛" audio cable into the communications jack of the EC- ECC-VAV LONWORKS LON LON SMRT- UO DO C- DO DO C- DO VAC V MON /8" SMRT Figure 7-: Wiring EC-Smart-Sensor to a VAV for airflow balancing The communications jack for both the EC-Smart-Sensor and EC-Sensor support mono and stereo audio cables. LON LON /8" Fan Speed Setting Auto Off Fan speed Fan speed Fan speed Corresponding Resistance Value 0Ω.kΩ.0kΩ 7.kΩ 0.0kΩ Toll-free: Tel. International:

4 WIRELESS HIGH 6 WIRELESS HIGH 6 Wiring an EC-Sensor to a LON network for Technician Use The communications terminals (, ) within the EC- Sensor can be optionally wired to a controller in a LON network To access the LON, a laptop can be connected to the EC-Sensor s communications jack by means of a ⅛" audio cable. If the distance between the EC-Sensor and the controller (Ttap length) is greater than 0ft (m), a bus topology must be used. The following figure shows how the EC-Sensor in bus topology LON network: AWG (0.6mm) unshielded twisted pair network cable The recommended cable type for LON communications is AWG (0.6mm), twisted pair, unshielded. The following figure shows how the EC-Sensor is connected in LON network with less than 0ft (m) T-tap length: Bus-topology network EC-Sensor AWG (0.6mm) unshielded twisted pair network cable <0ft (m) Bus-topology network Figure 7-6: LONWORKS Network Bus Topology with T-tap To wire a laptop to the LONWORKS network with T-tap via an EC-Sensor, do the following:. Remove the front plate of the EC-. Connect all three () LON cables coming from the previous device, going to the next device and going to the EC-Sensor to the LON and LON input terminals on the controller. If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors.. Connect the LON network cable coming from the controller to the and terminals on the EC-. Connect the two () wires that terminate with the ⅛" audio cable to the output terminals of the LonTalk adapter of the laptop.. Insert the ⅛" audio cable into the communications jack of the EC- ECC-VAV LONWORKS LON LON SMRT- UO DO C- DO DO C- DO VAC V From Previous To Next MON EC-Sensor Figure 7-8: LONWORKS Network Bus Topology To wire a laptop to a bus topology LONWORKS network via an EC-Sensor, do the following:. Remove the front plate of the EC-. Connect the LON cables coming from the previous device and going to the EC-Sensor to the LON and LON input terminals on the controller. If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors.. Connect the LON cables going to the next device and coming from the controller to the and input terminals on the EC- If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors.. Connect the two () wires that terminate with the ⅛" audio cable to the output terminals of the LonTalk adapter of the laptop.. Insert the ⅛" audio cable into the communications jack of the EC- ECC-VAV LONWORKS LON LON SMRT- UO DO C- DO DO C- DO VAC V From Previous To Next MON /8" /8" Figure 7-9: Wiring EC-Sensor to a LONWORKS Network Bus Topology Figure 7-7: Wiring EC-Sensor to a LONWORKS Network Bus Topology with T-tap For information and detailed explanations on network topology and wire length restrictions, please refer to the Junction Box and Wiring Guideline for Twisted Pair LONWORKS Networks, published by Echelon. Toll-free: Tel. International:

5 HIGH Wiring an EC-Sensor to a BACnet network for Technician Use The communications terminals (,, and ) within the EC-Sensor can be optionally wired to a controller in BACnet network. To access the BACnet networks, a laptop can be connected to the EC-Sensor s communications jack by means of a ⅛" audio cable. The recommended cable type for BACnet communication is AWG (0.mm), twisted pair, shielded. The following figure shows how the EC-Sensor is connected in BACnet network: ECB-VAV SUBNET VDC UO DO C- DO DO C- DO VAC V From Previous To Next MON /8" AWG (0.mm) shielded twisted pair network cable Bus-topology network EC-Sensor Figure 7-0: Wiring EC-Sensor to a BACnet network To wire a laptop to the BACnet network via an EC-Sensor, do the following: Figure 7-: Wiring EC-Sensor to a BACnet Network Bus Topology For information on best practices, specifications, and wiring rules, please refer to the BACnet Network Guide.. Remove the front plate of the EC-. Connect the BACnet cables coming from the previous device and going to the EC-Sensor to the and input terminals on the controller. Maintain consistent wire polarity. If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors. Also, connect the shield of the two () cables together while keeping it as short as possible.. Connect the BACnet cables going to the next device and coming from the controller to the and input terminals on the EC- If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them in the terminal connectors. Also, connect the shield of the two () cables to the input terminal on the EC-. Connect the three () wires that terminate with the ⅛" audio cable to the output terminals of the BACnet/IP to MS/TP Adapter.. Insert the ⅛" audio cable into the communications jack of the EC- Toll-free: Tel. International:

6 Hardware Installation Guide - 0DI-HIECSEN-0 EC-Sensor, EC-Sensor-O, EC-Sensor-S, EC-Sensor-SO, EC-Sensor-SOF Copyright Distech Controls Inc. First printed July 00 While all efforts have been made to verify the accuracy of information in this manual, Distech Controls is not responsible for damages or claims arising from the use of this manual. Persons using this manual are assumed to be trained HVAC specialist / installers and are responsible for using the correct wiring procedures and maintaining safe working conditions with fail-safe environments. Distech Controls reserves the right to change, delete or add to the information in this manual at any time without notice. Distech Controls and the Distech Controls logo are trademarks of Distech Controls Inc. Echelon, LON, LonTalk, LONMARK and LONWORKS are registered trademarks of Echelon Corporation registered in the United States and other countries. BACnet is a registered trademark of ASHRAE. *0DI-HIECSEN-0* 0DI-HIECSEN-0 Toll-free: Tel. International: