CentraLite EMS Operations, Maintenance & Service Manual Energy Management Control System CentraLite Systems, Inc.
CentraLite EMS Operations, Maintenance & Service Manual Contents Introduction .................................................................................................................................................... 3 System Operation ........................................................................................................................................ 3 In-Room Components ...........................................................................................................
CentraLite EMS Operations, Maintenance & Service Manual Introduction The CentraLite Energy Management System (EMS) has been installed to reduce energy costs by minimizing HVAC usage when a guest room is Unrented or Vacant. The EMS system allows continuous monitoring of all online devices within the property. System Operation The highest priority EMS design criterion was to maintain guest comfort while minimizing HVAC energy usage in every hotel room.
CentraLite EMS Operations, Maintenance & Service Manual the same way as guest rooms, or can be manually controlled through the online EMS. In-Room Components The in-room components of the EMS include a Zigbee motion sensor, a Zigbee door sensor, and a Zigbee thermostat. The door and motion sensors are battery powered using a CR-2 type lithium battery. The typical battery life is 2 years for each sensor. Thermostat The CentraLite thermostat is used to control the HVAC equipment in the guest rooms.
CentraLite EMS Operations, Maintenance & Service Manual Network Infrastructure The door and motion sensors are associated with the thermostat through the Room Area Network(RAN). The room thermostats are associated with one Ethernet Coordinator(EC) which is connected to the EMS server through the hotel’s Ethernet network. Energy Management System (EMS) The core of the EMS system is the EMS Server. The EMS Server receives room information through its connection to the Ethernet Coordinators(ECs).
CentraLite EMS Operations, Maintenance & Service Manual When a guest is checked-out the room SETPOINT temperature is automatically reset to the Unrented Default SETPOINT setting and the temperature is allowed to change (up or down) by the Deep Setback Variance. The Energy Control System will automatically ensure that the temperature in a room will not go outside of the Upper or Lower Limit Safety Range settings.
CentraLite EMS Operations, Maintenance & Service Manual Default Thermostat Settings Room Conditions System Pre Sets Change Requirement Guest checked-in /Room Occupied or Guest not checked-in/Room Occupied Settings RENTED DEFAULT TEMP 72 Standard Differential +/- 2 Occupant Override Limits Occupant Setting Upper Limit Occupant Setting Lower Limit 80 60 Guest checked-in / Room not Occupied for at least 15 minutes SETBACK +/- 3 Guest not checked-in/Room not occupied Settings – Vacant(Deep Setback) UNRE
CentraLite EMS Operations, Maintenance & Service Manual EMS Client Installation The EMS Client is installed locally on the windows PC you wish to view the system on. To download the latest version of the software go to: www.centralite.com/emsmanager then click in Install. The EMS Client software requires Microsoft .NET 3.5 so the installer may have to load this first if it is not currently installed on your machine.
CentraLite EMS Operations, Maintenance & Service Manual The IT source at the property will provide you with the following Datasource information: Server Name: SQL Server Initial Catalog: User ID: (This will not be the same as your login username to the EMS Client) Password: (This will not be the same as your login password to the EMS Client) After entering the information press Test to make sure the connection is being made.
CentraLite EMS Operations, Maintenance & Service Manual You can now enter your EMS username and password. If the username or password entered are not valid you will receives an Invalid Login message. If the login is successful you will see the floor layout for the property. This is the floor layout screen. You can view the layout for each floor and the color coded status for each room on the floor.
CentraLite EMS Operations, Maintenance & Service Manual The rooms screen shows all rooms on the selected floor arrayed in the cover flow cards.
CentraLite EMS Operations, Maintenance & Service Manual If you click on the Heating and Cooling Pie chart it will expand to fill the entire screen. This graph shows the percentage of Heating, Cooling, or Idle time for the selected thermostat for the time period that can be selected at the top of the screen.
CentraLite EMS Operations, Maintenance & Service Manual The Temperature Over Time chart shows a rich selection of data presented graphically. The data shown includes the following for the time period selected at the top of the screen.
CentraLite EMS Operations, Maintenance & Service Manual Extra data are available when hovering the mouse pointer over a piece of data.
CentraLite EMS Operations, Maintenance & Service Manual This shows the Temperature Over Time graph with all data visible.
CentraLite EMS Operations, Maintenance & Service Manual The graph is capable of zooming in on data. Just hover the mouse pointer over the first part of the data to be zoomed and left click and drag over the desired zoom period. The graph will take a few seconds to load this zoomed view.
CentraLite EMS Operations, Maintenance & Service Manual The dashboard presents several graphical reports for the entire property.
CentraLite EMS Operations, Maintenance & Service Manual The scheduler allows commands to be sent to one or more Thermostats at one scheduled time or at recurring times. To add a new scheduled event just double click on the day for the event to occur.
CentraLite EMS Operations, Maintenance & Service Manual Rooms for which the event will occur can be selected individually or as a group.
CentraLite EMS Operations, Maintenance & Service Manual Page 20 of 31
CentraLite EMS Operations, Maintenance & Service Manual Operation of the Thermostat Buttons: AUTO/OFF Toggles thermostat mode between AUTO mode and OFF: AUTO Thermostat controls the HVAC Unit automatically switching between Heating and Cooling. OFF Thermostat does not control the HVAC Unit. FAN MODE(OPTIONAL) ON The fan runs constantly. AUTO The thermostat will run the fan only when heating or cooling.
CentraLite EMS Operations, Maintenance & Service Manual Replacement of the Thermostat: Figure 4 shows the backplate for the Thermostat, with the terminals labeled: Figure 4 - Thermostat Backplate and Terminal Labels Standard Universal Connection R C Y1 G G3 W2 G2 W1 B/0 Y2 G1 24VAC Common Cool / First Stage Cool Fan / High Speed Fan Second Stage Heat / Medium Speed Fan Page 22 of 31 Second Stage Cool / Low Speed Fan Heat / Reversing Valve
CentraLite EMS Operations, Maintenance & Service Manual Standare 1 Cool, 1 Heat, 1 Fan Generic Heat Pump R C Y G W B O 24VAC Common Energize to cool (used for reversing valve on heat pumps) Cool Fan Heat Energize to Heat (used for reversing valve on heat pumps) Page 23 of 31
CentraLite EMS Operations, Maintenance & Service Manual Make the connections as shown in Table 2 below: Thermost Function at Terminal R 24V AC Hot C 24 V AC Common Y1 G G3 First stage cooling Fan (1-speed fan only) or Hi speed fan (2- or 3-speed fan) Second stage heat or Medium Fan (3-speed fan only) First stage heat or Heat pump reversing valve Second stage cooling or Low speed fan (2- or 3-speed fan) W2 G2 W1 B/O Y2 G1 Page 24 of 31
CentraLite EMS Operations, Maintenance & Service Manual Thermostat Settings All thermostats should be set as follows from the factory. Factory settings are used to establish a baseline for thermostat operations. These settings will be overridden by the EMS during automatic energy management processes. Newly replaced thermostats should be set to a SETPOINT temperature of 71 degrees F.
Online Energy Management Control System Infrastructure Components Ethernet Coordinator Each Ethernet Coordinator can support up to 100 Thermostats. The number of Ethernet Coordinators is dependent on the layout and construction of property. Ethernet Backbone The successful communication with Ethernet Coordinators is heavily dependent on the network they are attached to. Server The EMS Server receives temperature, door events, motion events, and other data from the rooms.
CentraLite EMS Operations, Maintenance & Service Manual Service Information Troubleshooting Guide DO NOT MOVE THERMOSTATS – All thermostats are uniquely addressed Thermostat Problems The following trouble shooting techniques assume that the wiring between the HVAC and the Thermostat is correct and that the Thermostat has been controlling the HVAC properly in the past. If this is not the case, correct any wiring problems before presuming that the Thermostat is not working properly.
CentraLite EMS Operations, Maintenance & Service Manual Preferred Procedure for Replacing Thermostat BE SURE THE THERMOSTAT IS ACTUALLY AT FAULT. VERIFY THAT THERE IS 24VOLT POWER BETWEEN THE R AND C CONNECTIONS. REMOVE FAULTY THERMOSTAT FROM THE BACKPLATE. CAREFULLY REMOVE EACH ZIGBEE RADIO WHILE NOTING THEIR POSITION. INSERT THE RADIOS INTO THE REPLACEMENT THERMOSTAT AGAIN NOTING THEIR POSITION AND MAKING SURE THEY ARE ORIENTED CORRECLTY AND ALL PINS MAKE CONTACT.
CentraLite EMS Operations, Maintenance & Service Manual The thermostat RAN will now be open for joining. This allows us to join the door and motion sensor(s) to the thermostat. Door sensors: remove the door sensor from the base. Be sure to default the sensor according to the procedure on the next page. Then press the button three times. The LED on the door sensor should begin to blink slowly. If it is successfully joined to the thermostat, then a message will appear on the stat that says “Device Joined”.
CentraLite EMS Operations, Maintenance & Service Manual Glossary SETPOINT The temperature at which a room thermostat has been set. This is done either automatically by the EMS or manually by a guest. Global Settings Parameters established by a hotel to guide the automatic functions of the EMS. Setback A global setting for the number of degrees that the thermostat will be allowed to drift either up or down from the SETPOINT temperature while the room is Unoccupied and Rented.
CentraLite EMS Operations, Maintenance & Service Manual Thermostat Notes: FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This device complies with Part 15 of the FCC Rules.
