026-1707 Rev 1 07-25-05 MultiFlex RCB Rooftop Controller Installation and Operation Manual 1640 Airport Road, Suite 104 Kennesaw, GA 31044 Phone: (770) 425-2724 Fax: (770) 425-9319 ALL RIGHTS RESERVED. The information contained in this manual has been carefully checked and is believed to be accurate. However, Com- puter Process Controls, Inc. assumes no responsibility for any inaccuracies that may be contained herein. In no event will Computer Process Controls, Inc. be liable for any direct, indirect, special, incidental, or consequential damages resulting from any defect or omission in this manual, even if advised of the possibility of such damages. In the interest of continued product development, Computer Process Controls, Inc. reserves the right to make improvements to this manual, and the products described herein, at any time without notice or obligation. Computer Process Controls, Inc. products may be covered by one or more of the following Computer Process Controls U.S. patents: 6360553, 6449968, 6378315, 6502409, 6779918; and Computer Process Controls Australian patent No. 775,199 November 4, 2004. READ ALL INSTRUCTIONS CAREFULLY If the equipment is not used in the manner specified by the manufacturer, the protection provided by the equipment may be impaired. SAVE THIS INSTRUCTION MANUAL This instruction manual contains important operating instructions for the MultiFlex RCB rooftop control board. Table of Contents 1 OVERVIEW OF THE MULTIFLEX RCB ................................................................................................................ 1 1.1. DIFFERENCES BETWEEN THE MULTIFLEX RCB AND THE MULTIFLEX RTU............................................................... 1 1.2. THE RCB’S I/O POINTS................................................................................................................................................ 1 1.3. INDEPENDENT SYSTEM CONTROL ................................................................................................................................ 1 2 MOUNTING AND POWERING ................................................................................................................................. 3 2.1. SNAP-TRACK INSTALLATION........................................................................................................................................ 3 2.2. THE PLUG-IN OUTPUT BOARD ..................................................................................................................................... 4 2.3. POWERING THE MULTIFLEX RCB BOARD ................................................................................................................... 4 2.3.1. Choosing Transformer Sizes ................................................................................................................................. 5 2.3.2. MultiFlex RCB Power Wiring............................................................................................................................... 5 2.3.3. Wire Types and Maximum Distances.................................................................................................................... 6 2.4. THE MULTIFLEX RCB BATTERY AND BATTERY ENABLE JUMPER ............................................................................. 7 3 THE I/O NETWORK .................................................................................................................................................... 8 3.1. WIRING TYPES.............................................................................................................................................................. 8 3.1.1. Daisy Chains......................................................................................................................................................... 8 3.1.2. Network ID Numbers ............................................................................................................................................ 8 3.1.2.1. Numbering the MultiFlex RCB .......................................................................................................................................... 9 3.1.3. Setting the Baud Rate............................................................................................................................................ 9 3.1.4. Setting the Terminating Resistance Jumpers ........................................................................................................ 9 4 RCB INPUT AND OUTPUT SETUP......................................................................................................................... 10 4.1. THE MULTIFLEX RCB INPUTS ................................................................................................................................... 10 4.1.1. Wiring Sensors to the MultiFlex RCB................................................................................................................. 11 4.1.1.1. Wiring ............................................................................................................................................................................... 11 4.1.1.2. Sensor Wiring Types ........................................................................................................................................................ 11 4.1.1.3. Input Type Dip Switches .................................................................................................................................................. 11 4.1.2. On-Board Power Connection.............................................................................................................................. 12 4.1.2.1. Current Ratings for On-Board Power Sources ................................................................................................................. 12 4.1.2.2. Powering Sensors Requiring 24VAC Off the Power Transformer................................................................................... 12 4.2. THE MULTIFLEX RCB OUTPUTS................................................................................................................................ 12 4.2.1. Wiring Outputs to Points..................................................................................................................................... 13 4.2.2. Output Fail-Safe Dip Switches............................................................................................................................ 13 4.2.3. Relay Output Ratings and Fuse Protection......................................................................................................... 14 4.3. ANALOG OUTPUTS...................................................................................................................................................... 15 4.3.1. Wiring the RCB Analog Output Points ............................................................................................................... 15 5 BOARD STATUS LEDS ............................................................................................................................................. 16 5.1. STATUS LED .............................................................................................................................................................. 16 5.2. TX AND RX LEDS ...................................................................................................................................................... 16 5.3. THE CODE A LED ...................................................................................................................................................... 16 5.4. THE CODE B LED ...................................................................................................................................................... 17 5.5. RELAY OUTPUT LEDS................................................................................................................................................ 17 6 SOFTWARE OVERVIEW ......................................................................................................................................... 18 6.1. INTRODUCTION TO ZONE CONTROL ........................................................................................................................... 18 6.2. TEMPERATURE CONTROL ........................................................................................................................................... 19 6.2.1. Setpoints.............................................................................................................................................................. 19 Table of Contents MultiFlex RCB Operator’s Guide • v 6.2.1.1. Staged Heating and Cooling ............................................................................................................................................. 19 6.2.1.2. Occupied/Unoccupied Setpoints and Summer/Winter Setpoints ..................................................................................... 20 6.2.2. Low Supply Temp ................................................................................................................................................ 20 6.3. FAN CONTROL ............................................................................................................................................................ 20 6.3.1. Two-Speed Air Fan Strategy ..............................................................................................................................