Automation, Inc. Model EAC1100 /A QUICK INSTALL GUIDE Advanced Outdoor Airflow Control, DCV Control and Alarm Solution Enhancer QUICK INSTALL GUIDE for ENHANCER Advanced Outdoor Airflow Control, DCV Control and Alarm Solution for OA Applications Document Name: QG_EAC1100_A_R3A QG_EAC1100A_R3A Part Number: 960-0412 GreenTrolAutom ation,inc. 156 Holly View Lane Loris, SC 29569 Toll Free: 877-4GN-TROL (877.446.8765) Website: GreenTrol.com
Automation, Inc. INTRODUCTION This Quick Install guide provides only the information necessary to install the Enhancer Transmitter, Probes and related wiring. Refer to the Enhancer Installation Guide IG_EAC1100 /A under separate cover for information on initial Set up and normal operation. For application or installation questions, contact the GreenTrol Applications team Toll Free at 877-4GN-TROL (877.446.8765). 1. ENHANCER UNPACKING Unpack the EAC1100 /A and verify that all components have been supplied as shown in the List of Items Supplied below. Inspect for damage. If damage is noted, immediately notify carrier. LIST OF ITEMS SUPPLIED Qty Description Part Number 1 Enhancer EAC1100 Transmitter 410-3200 2 S111 probes and integral mounting brackets 610-5010 1 Wiring bulkhead, flanged black SLP x SLP bulkhead threaded 280-1770 2 Wiring bulkhead gasket 280-1765 1 Wiring bulkhead nut 280-1115 1 QG_EAC1100_A Quick Install Guide (this document) 960-0412 1 IG_EAC1100_A Installation Guide 960-0410 1 EAC1100 Mounting Template 960-0411 LIST OF ITEMS REQUIRED (NOT SUPPLIED) Qty Description 1 1.5-inch (38.1mm) sheet metal hole saw 6 #8 Hardware for mounting transmitter (#6 can be substituted if #8 is unavailable) 1 Drill A/R Drill bit suitably sized for hardware selected A/R Screw driver suitable for hardware selected NOTE: The 1.5-inch (38.1mm) hole size is critical to ensure a weather-tight seal at the rear of the Transmitter 2
2. AIRFLOW PROBE INSTALLATION Installation Overview and Probe Placement Recommendations: Probes are equipped with universal mounting brackets (Figure 1) that permit installation in a wide variety of field applications. Study Figure 2 for the recommended placement of probes for your application. The objective is to have the airflow probes mounted within the economizer hood on each side (left and right) such that each probe sensor center is positioned at the following location: A minimum distance of 2.5 (63.5 mm) upstream of the OA damper blade edge when at 100% open; and: Universal Mounting Bracket provides complete installation flexibility at a distance of ¼ of the unobstructed probe mounting width (X) from the left and right edges; and: at a distance of ½ of the unobstructed probe mounting height (Y). (continued) Figure 1. Universal Mounting Bracket LEFT SENSOR CENTER LOCATION Probe Sensor Center Location Detail PLANE OF THE EDGE OF OA DAMPER BLADES AT 100% OPEN RIGHT SENSOR CENTER LOCATION 2 ½ UPSTREAM OF OA DAMPER BLADE EDGE AT 100% OPEN Y UNOBSTRUCTED PROBE MOUNTING HEIGHT ½ Y ¼ X ½ Y 2 ½ UPSTREAM OF OA DAMPER BLADE EDGE AT 100% OPEN AIRFLOW ¼ X ¼ X X UNOBSTRUCTED PROBE MOUNTING WIDTH Note: Left probe installation detail is shown in all illustrations. Mirror for right probe detail. Figure 2. Enhancer Probe Sensor Center Location and Placement Detail 3
Automation, Inc. 2. AIRFLOW PROBE INSTALLATION (continued) CAUTION: Handle probes carefully. The glass bead thermistor sensors within the airflow openings of the probe are fragile and can be damaged by impact. 1. Examine the planned probe installation location on the left and right sides of the economizer hood opening to ensure that there will be no interference with damper blade operation. In addition, confirm that the planned routing of the probe cables will not interfere with damper linkage. 2. Position and mark the left (PRB1) and right (PRB2) bracket locations for each probe to ensure that the sensor center locations will meet the probe Placement Recommendations detailed in Figure 2. 3. Drill suitable pilot holes for the hardware to be used for each bracket. NOTE: Steps 4 and 5 may be reversed to permit probe installation and adjustment. 4. Adjust the position of the probe within the bracket to meet the recommended installation requirements as described in step 2 and Figure 2. Verify that the airflow direction sticker on each probe is in the direction of actual airflow. Tighten the probe to bracket hardware to secure the probes in this position. 5. Secure each probe bracket and probe through each bracket in two places using suitable mounting hardware. 6. Probes are factory marked PRB1 and PRB2 on the probe cables. Note the positions on the economizer panel where they have been mounted to facilitate diagnostics in the event of a problem later on. Their location will not be apparent once the equipment is assembled and placed into operation. 7. Route each sensor probe cable to the planned EAC1100 /A Transmitter site and install transmitter as outlined in the EAC1100 /A Transmitter Installation procedure that follows. CAUTION: If cable routing holes are required, the recommended minimum diameter is 1". When preparing any cable routing holes and when routing cables, prevent damage to the cables from sharp edges of the prepared holes. 4
3. TRANSMITTER INSTALLATION 1. Confirm that the planned mounting location for the Enhancer transmitter (typically on the outside of the air handler unit) will not interfere with any internal air handler unit components directly behind the mounting location. Ensure that the location allows for easy access and installation of the flanged weather tight wiring bulkhead, gaskets and routing of probe cables to transmitter location. 2. Use the supplied Enhancer Enclosure Drill Template (P/N 960-0411) to mark the locations of the six transmitter mounting holes (maximum size: #8 screws) and the 1.5 inch (38.1 mm) wiring access hole. 3. If necessary, drill six mounting holes suitable for the transmitter mounting hardware at the six marked transmitter mounting locations (maximum size: #8 screws). 4. Prepare a 1.5 inch (38.1 mm) wiring access hole at the marked wiring access hole location. 5. Remove the Transmitter cover and gasket as shown in the detail of Figure 3. Then, gently squeeze the two board retainers to release the main board and allow it to hinge open to the left as shown in the detail of Figure 3. (continued) Mark these mounting hole locations 1 4 1. Remove gasket 2. Squeeze retainers and lift right edge of board to access wiring port and terminals Board retainer 2 5 3 6 Board retainer Mark these mounting hole locations Mounting hole locations and Cover retaining screws (1 to 6) 2. Squeeze retainers and lift right edge of board to access wiring port and terminals Main board retainers, gasket removal and hinge-to-open procedure detail Figure 3. Transmitter cover removal and access to wiring terminals detail 5
Automation, Inc. 3. TRANSMITTER INSTALLATION (continued) 6. Refer to Figure 4 and insert the wiring bulkhead with gasket through the EAC1100 wiring access port so that the gasket is seated on the enclosure, and the flange is inside of the enclosure as shown. 7. Insert the flanged wiring bulkhead into the hole prepared in step 4 as shown in Figure 4. 8. Insert remaining flexible gasket seal from the inside of the prepared mounting hole, and secure the wiring bulkhead and transmitter using the wiring bulkhead nut. Line up enclosure to the six mounting holes prepared in step 3, and then tighten the wiring bulkhead nut securely to ensure a weathertight seal and prevent loosening. 9. Secure transmitter at six transmitter mounting holes with suitable hardware. 10. Route cables to transmitter and proceed to 24VAC Wiring in the following steps. Figure 4. Transmitter flanged wiring bulkhead installation detail 6
4. 24VAC WIRING 24VAC WIRING PRECAUTIONS: Deactivate 24 VAC power source until all connections are complete. Refer to IG_EAC1100 for additional ESD and wiring precautions. The Enhancer 24 VAC input ground (GND) connection is shared with the Analog I/O signal grounds. If isolated output is required, a dedicated isolation transformer must be provided to power the EAC1100 /A. When other devices are powered by a common 24VAC transformer output, proper phasing of 24V PWR and GND MUST BE OBSERVED. It is recommended that analog input and output interface be connected using separate twisted shielded pairs to eliminate potential voltage drop on the common. 1. Deactivate 24VAC power. 2. Connect 24VAC input power and optional alarm output cables at the ALRM and PWR Terminal Barrier strip as shown in Figure 5. 5. Economizer Control, CO2 Sensor, Damper Actuator and Other Component Wiring Refer to Figure 5 for typical complete Enhancer wiring diagram and detail of external Economizer Control, CO2 Sensor, Damper Actuator and other component wiring. 6. Initial Power Up and Completing the Enhancer Start-Up Wizard 1. Apply power to the Enhancer. The LCD will display a series of dashes followed by the model number and product firmware version. The LCD will then display: START UP WIZARD - Press Enter 2. Press the ENT enter push button key to begin the Start Up Wizard. The Start Up Wizard will guide you through the steps required to properly set up the Enhancer for proper operation in the intended application. The Start Up Wizard must be completed in order to place the Enhancer into normal operation, or to change any of the factory default values. 3. Measure and verify that the Economizer Controller minimum damper actuator voltage when in occupied mode is greater than the factory default Enhancer occupancy trigger set point of 2.2VDC. (If it is NOT greater than 2.2VDC, this value (OCC TRIG= ) can be changed in the Set Up Menu only AFTER completion of the START UP WIZARD). 4. Replace gasket and cover, and secure with the six cover mounting screws (Fig. 3). 5. For additional information on operation and set up of the Enhancer refer to the complete Enhancer Installation Guide IG_EAC1100 /A under separate cover. 7
24VAC POWER TRANSFORMER LINE IN 24 VAC OUT 24 VAC / 50-60 HZ (SEE NOTES 1, 2 AND 3) ENHANCER EAC1100 /A TRANSMITTER 24 VAC GND N.O. COM REAR WIRING SIDE OF MAIN BOARD LED JUMPER (ON FRONT SIDE OF BOARD) SEE NOTE 7 24 VAC IN ALARM OUT PRB1 PRB1 OA S111 AIR FLOW PROBES MOLEX CONNECTORS PRB2 PRB2 OA ENHANCER ALARM STATUS DRY RELAY CONTACTS OR FIELD SUPPLIED ALARM LED INDICATOR ALARM MENU SELECT N.O./N.C. DRY CONTACTS RATED AT 30VDC/ 24VAC @ 3A MAX OR EXTERNAL ALARM LED ANODE (15 ma) FROM N.O./N.C. TO GND; LED IS ACTIVE ON ALARM RS-485 BAS NETWORK INTERFACE NETWORK COMMON* (FROM NET COM) NET (FROM NET ) TERM JUMPER (ON FRONT SIDE OF BOARD) SEE NOTE 6 RS-485 ANALOG IN/OUT NET COM NET - NET + GND GND GND AOUT1 AOUT2 AIN1 15VDC AIN2 15VDC FOR FACTORY USE ONLY PRB1 PRB2 NET + (FROM NET +) *FOR NET COMMON CONNECTIONS SEE NOTES 2, 3 OA DAMPER ACTUATOR INTERFACE 24VAC* GROUND* DAMPER CONTROL 2-10VDC ANALOG *FOR POWER AND SEPARATE ANALOG COMMON CONNECTIONS, SEE NOTES 1, 2 AND 4 *FOR ANALOG GROUND CONNECTIONS SEE NOTES 1, 2, 3 AND 4 AOUT2 OPTIONAL OA FLOW OUTPUT (SEE SETUP MENU ITEM AOUT2 = 0-10/2-10/0-5VDC) OPTIONAL ANALOG CO2 SENSOR CO2 DCV SENSOR OUTPUT 2-10VDC, 0-10VDC, 0-5VDC OR 4-20 ma 24VAC* GROUND* *FOR POWER AND SEPARATE ANALOG COMMON CONNECTIONS, SEE NOTES 1, 2 AND 4 ECONOMIZER CONTROLLER INTERFACE OPTIONAL BACNET CO2 SENSOR 24VAC* GROUND* V OUT DAMPER CONTROL OUTPUT 2-10VDC ANALOG *FOR POWER AND SEPARATE ANALOG COMMON CONNECTIONS, SEE NOTES 1, 2 AND 4 TO RS-485 BAS NETWORK INTERFACE 24VAC* GROUND* NET COMMON* NET NET + *FOR POWER AND NET COMMON CONNECTIONS, SEE NOTES 1, 2, 3 AND 5 NOTES: 1. THE EAC1100 IS A NON-ISOLATED DEVICE USING A HALF-WAVE RECTIFIER ON THE 24VAC POWER INPUT. IN ADDITION, THE POWER GND AND ANALOG GND TERMINALS ARE INTERNALLY CONNECTED. 2. THE ECONOMIZER CONTROLLER, ACTUATOR, AND EAC1100 SHOULD ALL BE POWERED FROM A COMMON POWER 24VAC SOURCE AND THEY MUST BE WIRED IN-PHASE TO THE SAME TERMINALS (e.g.: 24VAC to 24VAC, and power GND to power GND). 3. NET COM IS ELECTRICALLY ISOLATED FROM GND TERMINALS. 4. RECOMMENDED WIRING IS SHOWN. WHEN WIRING ANALOG DEVICES EQUIPPED WITH SEPARATE ANALOG SIGNAL AND ANALOG COMMON, USE SHIELDED TWISTED PAIR (STP) WIRING WITH ANALOG COMMONS CONNECTED AT AN ANALOG GROUND TERMINAL GND. 5. CONNECT TWISTED PAIR SIGNAL CABLE DRAINS TO EARTH GROUND AT ONE END OF CABLE ONLY. 6. SET TERM JUMPER (FRONT SIDE OF BOARD) TO ON FOR RS-485 END OF LINE TERMINATION, OR OFF FOR ALL OTHER CONNECTIONS (SEE INSTALLATION GUIDE). 7. SET LED PWR JUMPER (FRONT SIDE OF BOARD) TO ON FOR EXTERNAL ALARM LED, OR OFF FOR RELAY ALARM CONNECCTIONS (SEE INSTALLATION GUIDE). 8. DASHED LINES INDICATE ALTERNATE CONNECTIONS. Figure 5. Typical Enhancer Complete Wiring Diagram Detail 8