WARNINGS AND CAUTIONS
The RC-2000 is a precision digital thermostat designed for 24 VAC heating and cooling systems. The RC-2000 will support the following systems:
The RC-2000 has the capability of being controlled both locally and by remote control. It offers programmability, stand-alone operation, and robust, optically isolated communications with automation systems, utility control systems, and personal computers.
The following requirements must be observed for installation in Europe: CE
POWER UP
Before installing this thermostat:
Location
When replacing an existing thermostat, install the RC-2000 in the same location. If the existing location doesn’t meet the following criteria, choose a new location to mount the RC-2000. When choosing a location for the thermostat:
Removing an existing thermostat
MOUNTING
When mounting the RC-2000, grasp the thermostat by the sides, avoiding the keys, and unsnap the base from the face. Holding the base to the wall so that the word “UP” is upright and facing you:
CONFIGURATION
POWER UP
About Heat Pump Systems
About Dual Fuel Heat Pump Systems
A dual fuel heat pump typically has a gas furnace combined with a heat pump. The gas furnace is used as auxiliary heat unless the outdoor temperature is very low, in which case it is used as the primary heat source.
Balance Setpoint Limits:
Important Notes:
POWER UP
Figure 5 – Connections for heat and cool transformers – applies to all systems
POWER UP
From the factory, the RC-2000 is configured as a single stage conventional heat/cool thermostat. In the default configuration, this thermostat does not turn the fan on with a call for heat. If the furnace does not turn the fan on with a call for heat, the thermostat must be configured to do so under “System Options”. POWER UP
However, if the RC-2000 “resets” when calling for heat or cool, or if the heat, cool, or fan relay cannot supply 15mA to power the thermostat without the relay activating, the transformer common wire or the Leviton Thermostat Power Supply Module (Part Number: 30A00-1) is required.
REMOTE SYSTEM WIRING DIAGRAMS
This thermostat has been preprogrammed with energy saving program schedules. When used with a remote system, it is recommended that the Program Mode be configured as “None” or “Occupancy”. This will disable the internal program schedules.
SETTING THE COMMUNICATIONS JUMPER
This thermostat comes from the factory with the communications jumper (J8) labeled “COMM JUMPER” on the thermostat printed circuit board installed – See Figure 11.
Leviton HOME CONTROL SYSTEMS
The thermostat can be connected to an Leviton Home Control system. The controller can send commands to the thermostat to change mode, cool setting, heat setting, status of fan and hold, and other items. Run a 3 (or 4) conductor wire from the Leviton system to the thermostat location. All thermostats on an Leviton Home Control system are connected to Ground, Zone +16, and Output 8 –
Notes:
Heat Minimum On | The number of minutes the thermostat forces the heat to remain on before turning off. Raising this number will increase the total time the heating system is on (saving energy), but may allow the temperature to drift farther from the setpoint (decreasing comfort). When combined with Heat Minimum Off, cycles per hours can be obtained by using the following calculation: 60 / (Heat Minimum On + Heat Minimum off). The default time is 6 minutes. |
Heat Minimum Off | The number of minutes the thermostat forces the heat to remain off before starting again. Raising this number will increase the total time that the heating system is off (saving energy), but may allow the temperature to drift farther from the setpoint (decreasing comfort). When combined with Heat Minimum On, cycles per hours can be obtained by using the following calculation: 60 / (Heat Minimum On + Heat Minimum off). The default time is 6 minutes. |
Cool Stages | The number of cool stages the HVAC system can support. The default setting is 1. |
Heat Stages | The number of heat stages the HVAC system can support. Auxiliary heat is included in this number for heat pumps. The default setting is 1. |
The EEC Settings are used to configure Energy Efficient Control, 2nd Stage Differential, and Auxiliary Heat Differential. Not all of these features apply to all thermostat configurations. Only the features that apply to the current configuration (based on the System Type and Stage Settings) of the thermostat will be available when this menu is selected. This thermostat is equipped with Energy Efficient Control (EEC) that continually monitors the performance of the HVAC system and uses Stage 2 (heat or cool) and Stage 3 (auxiliary heat) only when necessary. If the thermostat determines that Stage 1 is able to heat or cool at a rate of 5 degrees per hour or better, Stage 2 will not be used. If Stage 1 is unable to heat or cool at this rate, the thermostat will use Stage 2 as needed. Under these conditions, Stage 1 will run continuously and Stage 2 will cycle on and off as needed. In extremely cold conditions, the auxiliary heating will be used when Stage 1 and/or Stage 2 is not heating at a sufficient rate.
EEC: This item configures Energy Efficient Control (EEC). EEC continually monitors the performance of the HVAC system and uses a PID algorithm and auto balance routine to achieve comfort while saving energy. A setting of 0 will disable EEC. When EEC is disabled, the RC-2000 will attempt to maintain the temperature within 0.5 degrees F of the setpoint. A lower setting of 2-3 can be used for slow reacting sources (e.g. radiant heat) and higher setting of 7-8 for fast reacting sources (e.g. forced air). The default setting is 5.
REMOTE SETBACK SWITCH
The thermostat can be connected to a remote switch to toggle the desired heat and cool temperature settings between preset setpoints. A signal can be sent from the remote switch location to change the thermostat temperature settings from the Occupancy Day temperature settings to the Occupancy Night temperature settings. To use this mode, the “Program Options” setting must be set to “Occupancy” – See Program Options. Run a two-conductor wire from the remote switch to the thermostat location. Make the connections to the Black and Green terminals under the section marked “Comm” on the right terminal strip –
Notes:
For connections to personal computers, utility management systems, and other automation systems, refer to connection diagrams provided with personal computer software package or other system.
EEC Settings | Conventional (1 Cool / 1 Heat) Zone Control (1 Cool / 1 Heat) | Conventional (2 Cool / 2 Heat) | ||||
Heat EEC | *5 | 0 – 10 | Heat EEC | *5 | 0 – 10 | |
Cool EEC | *5 | 0 – 10 | EEC | *5 | 0 – 10 | |
2nd Stage Differential | *2 | 1 – 10 | ||||
Start Delay (Minutes) | *10 | 0 – 4hr:15min | ||||
Heat Pump and Dual Fuel Heat Pump (1 Cool / 2 Heat) | Geothermal Heat Pump and Geothermal Dual Fuel Heat Pump (1 Cool / 2 Heat) | |||||
Heat EEC | *5 | 0 – 10 | Heat EEC | *5 | 0 – 10 | |
Cool EEC | *5 | 0 – 10 | Cool EEC | *5 | 0 – 10 | |
Aux Heat Differential | *2 | 1 – 10 | Aux Heat Differential | *2 | 1 – 10 | |
Start Delay (Minutes) | *5 | 0 – 4hr:15min | Start Delay (Minutes) | *45 | 0 – 4hr:15min | |
Heat Pump and Dual Fuel Heat Pump (2 Cool / 3 Heat) | Geothermal Heat Pump and Geothermal Dual Fuel Heat Pump (2 Cool / 3 Heat) | |||||
Heat EEC | *5 | 0 – 10 | Heat EEC | *5 | 0 – 10 | |
Cool EEC | *5 | 0 – 10 | Cool EEC | *5 | 0 – 10 | |
2nd Stage Differential | *1 | 1 – 10 | 2nd Stage Differential | *1 | 1 – 10 | |
Start Delay (Minutes) | *5 | 0 – 4hr:15min | Start Delay (Minutes) | *45 | 0 – 4hr:15min | |
Aux Heat Differential | *5 | 1 – 10 | Aux Heat Differential | *2 | 1 – 10 | |
Start Delay (Minutes) | *10 | 0 – 4hr:15min | Start Delay (Minutes) | *3hr | 0 – 4hr:15min |
REMOTE TEMPERATURE SENSOR
A remote temperature sensor can be installed to monitor the temperature from a remote location or can be combined with the onboard temperature sensor for the average temperature of two locations. Run a twisted pair, shielded cable from the RC-2000 to the remote temperature sensor location. For distances up to 100 feet, typical twisted pair, PVC-insulated, shielded cable may be used. For distances from 100-150 feet, twisted pair with polypropylene insulated conductors, shielded must be used. For distances from 150-250 feet, twisted pair with foam-polyethylene insulated conductors, shielded must be used. Wire runs must not exceed 250 feet. Make the connections to the Green and Black terminals under the section marked “Remote Temp Sensor” on the right terminal strip
Notes:
The Anticipator Control settings are used to “anticipate” the need to turn the system on or off before the temperature is actually at the setting. As humans, we perceive temperature as a combination of heat in the air and heat radiated from the walls and surroundings. The thermostat also measures a combination of air and wall temperature. When heating, the air temperature rises faster than the wall temperature. The thermostat will turn the heat off briefly to prevent overheating the air while the wall temperature catches up. When cooling, the thermostat will periodically run the cooling system to circulate the air and remove humidity when the temperature is close to, but not above the desired cool setting. Because of the PID algorithm and auto balance routine which monitors the performance of the HVAC system, the anticipator settings are automatic by default. However, the anticipator settings may be adjusted if desired.
Heat Anticipator: This adjusts the tendency of the thermostat to turn the heating unit off before the desired heat setting is reached. This is done to avoid overheating the air while the walls and furniture catch up. A setting of 0-4 is intended for fast-reacting heating systems, such as forced air. A setting of 6-10 is intended for slow-reacting heating systems, such as radiant heat. A setting of 5 is used for automatic anticipation. A lower setting will decrease the tendency to turn off the heating system before the desired heat setting is reached. If the heating system response time is slower, as are most radiant heating systems, a higher number will help maintain an even space temperature.
Cool Anticipator: This adjusts the tendency of the HVAC to run the cooling system to refresh and dehumidify the air before the temperature rises to the desired cool settings. A setting of 0-4 is intended for more humid climates and will increase the tendency for the cooling system to turn on to refresh and dehumidify the air. A setting of 6-10 is intended for dry climates and will decrease the tendency to run the cooling system below the cooling setting. A setting of 5 is used for automatic anticipation.
2nd/3rd Stage Extended On: When enabled and if any 2nd or 3rd stage turns on, it will remain on until the heat/cool is satisfied, regardless of the settings for any stage differentials. The default setting is off.
Cool Anticipator | *5 |
Heat Anticipator | *5 |
2nd/3rd Stage Extended On | *Off |
DISABLE LOCAL CONTROL
The Task Buttons and Scroll Wheel on the thermostat can be disabled to prevent anyone from controlling the thermostat locally. To disable the Task Buttons and Scroll
Wheel
SETUP AND CONFIGURATION
Note: For proper operation of the features of this thermostat, the Time and Date must be set. Even when connected to an HAI controller which sets the time and day, the Date must be manually set in the thermostat under the “Settings” menu.
This section describes the items that the installer must setup as part of the thermostat installation. The Installation Settings menu is used to configure the operating parameters of the thermostat.
To access the Installation Settings mode:
The Temperature Sensor settings are used to configure the internal temperature sensor and optional remote temperature sensors that are connected to the thermostat. Any temperature sensors that are set as the same type (i.e. indoor or outdoor) will display the average temperature reading among the sensors.
The Humidity Options are used to configure the dehumidifier and/or humidifier output on the thermostat.
Dehumidifier Output | Humidifier Output |
*Not Used | *Not Used |
Dehumidifier | Humidifier |
Fan Speed Control | EM Heat |
EM Heat |
Notes:
Thermostat Address
If you are using remote communications and you are installing more than one thermostat, each must be set to a unique address. The default address setting is 1. An address from 1- 127 may be selected.
Communications Mode
The thermostat can communicate with remote systems in different modes.
Communications | *Serial: RS-232 mode for use with personal computers and automation systems. | ||||
Day/Night: The thermostat remotely communicates with a remote setback switch. | |||||
System Baud | *100 | 300 | 1200 | 2400 | 9600 |
Expansion Baud | 100 | 300 | *1200 | 2400 | 9600 |
The following modes are available:
System Type | *Conventional ———————————-
Zone Control | Dual Fuel Heat Pump1 ————————— Geothermal Dual Fuel Heat Pump1 | Heat Pump ———————– Geothermal Heat Pump | |||||||||
System Mode | *Auto Changeover | Auto Changeover | Auto Changeover | |||||||||
Manual Changeover | Manual Changeover | Manual Changeover | ||||||||||
Heat Only | ||||||||||||
Cool Only | ||||||||||||
Fan On with Heat Stage | *None | 1 | 2 | 3 | *1, 2, and 3 | 1 | 2 | 3 | *1, 2, and 3 | 1 | 2 | 3 |
1 and 2 | 1 and 3 | 2 and 3 | 1, 2, and 3 | 1 and 2 | 1 and 3 | 2 and 3 | 1 and 2 | 1 and 3 | 2 and 3 |
Note: Before operating the thermostat, the “System Type” and “System Mode” must be configured. The thermostat can be configured with the following system options
Emergency Heat Options
The Emergency Heat Options are used to reconfigure the H (Humidifier) or D (Dehumidifier) outputs on the RC-2000 to activate when the thermostat is in Emergency Heat mode. The default address setting is “None”.
Note: The H (Humidifier) and D (Dehumidifier) output will operate as described under Humidity Options.
Balance Setpoints (Dual Fuel Heat Pump)
The Balance Setpoints are used to determine when the auxiliary heat is used in a dual fuel heat pump system
Installer Lockout
When this option is set to [Yes], the “Installation Settings” menu option is removed from the “Setup” menu to prevent access to these settings. To access the “Installation Settings” menu, from “Setup” menu, simultaneously press Task Buttons 1 (left), 2 (center), and the Scroll Wheel; “Installation Settings” will appear.
Factory Default
This option will restore all system settings and programming to factory fresh configuration. Read the warning and then press [Yes] to proceed or [Cancel] to return to Installation Settings.
Program Options
This thermostat has been preprogrammed with energy saving program schedules. When used with a remote system, it is recommended that the Program Mode be configured as “None” or “Occupancy”. This will disable the internal program schedules. The program options setting sets the method for scheduling temperature change commands.
Program Mode | *Schedule: Program setpoints are based on time of day and day of week. |
None: The internal program schedule is disabled Us.e this when connected to a remote system for temperature change commands. | |
Occupancy: Program setpoints are based on the occupancy status of a remote system. Status options are Day, Night, Away, and Vacation. This mode is also used with a remote setback switch. Note: A remote system or switch is required. |
Calibration Offset
This item is used to raise or lower the current temperature reading from the onboard temperature sensor by .5 degree Fahrenheit or .25 degree Celsius. The default setting is 0.00.
Cool/Heat Limit
These items are used to limit the desired temperature settings in cool and heat mode. The desired cool setting can never be set below the “Cool Setpoint Min” setting and the desired heat setting can never be set above the “Heat Setpoint Max” setting. The default setting for cool is 51°F. The default setting for heat is 91°F.
Cool/Heat Min On/Off
These items are used to limit the on and off times of the cooling and heating system (in minutes).
Cool Minimum On | The number of minutes the thermostat forces the cooling system to remain on before turning off. Raising this number will increase the total time the cooling system is on (saving energy), but may allow the temperature to drift farther from setpoint (decreasing comfort). When combined with Cool Minimum Off, cycles per hours can be obtained by using the following calculation: 60 / (Cool Minimum On + Cool Minimum Off). The default time is 6 minutes. |
Cool Minimum Off | The number of minutes the thermostat forces the cooling system to remain off before starting again. Raising this number will increase the total time that the cooling system is off (saving energy), but may allow the temperature to drift farther from the setpoint (decreasing comfort). When combined with Cool Minimum On, cycles per hours can be obtained by using the following calculation: 60 / (Cool Minimum On + Cool Minimum Off). The default time is 6 minutes. |
LEVITON LIMITED WARRANTY
Leviton warrants to the original consumer purchaser and not for the benefit of anyone else that products manufactured by Leviton under the Leviton brand name (“Product”) will be free from defects in material and workmanship for the time periods indicated below, whichever is shorter:
Note: Primary (non-rechargeable) batteries shipped in products are not warranted. Products with Windows® Operating Systems: During the warranty period, Leviton will restore corrupted operating systems to factory default at no charge, provided that the product has been used as originally intended. Installation of non-Leviton software or modification of the operating system voids this warranty. Leviton’s obligation under this Limited Warranty is limited to the repair or replacement, at Leviton’s option, of Product that fails due to defect in material or workmanship. Leviton reserves the right to replace product under this Limited Warranty with new or remanufactured product. Leviton will not be responsible for labor costs of removal or reinstallation of Product. The repaired or replaced product is then warranted under the terms of this Limited Warranty for the remainder of the Limited Warranty time period or ninety (90) days, whichever is longer. This Limited Warranty does not cover PC-based software products. Leviton is not responsible for conditions or applications beyond Leviton’s control. Leviton is not responsible for issues related to improper installation, including failure to follow written Installation and operation instructions, normal wear and tear, catastrophe, fault or negligence of the user or other problems external to the Product. To view complete warranty and instructions for returning product, please visit us at www.leviton.com
COPYRIGHT AND TRADEMARK INFORMATION
This document and all its contents herein are subject to and protected by international copyright and other intellectual property rights and are the property of Leviton Manufacturing Co., Inc, its subsidiaries, affiliates and/or licensors. © 2013 Leviton Manufacturing Co., Inc. All rights reserved. Use herein of third party trademarks, service marks, trade names, brand names and/or product names are for informational purposes only, are/may be the trademarks of their respective owners; such use is not meant to imply affiliation, sponsorship, or endorsement. No part of this document may be reproduced, transmitted or transcribed without the express written permission of Leviton Manufacturing Co., Inc.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
FOR CANADA ONLY
For warranty information and/or product returns, residents of Canada should contact Leviton in writing at Leviton Manufacturing of Canada Ltd to the attention of the Quality Assurance Department, 165 Hymus Blvd, Pointe-Claire (Quebec), Canada H9R 1E9 or by telephone at 1 800 405-5320.
DOWNLOAD MANUALS:
Leviton RC-2000 Digital Wireless Thermostat User Guide
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Leviton RC-2000 Digital Wireless Thermostat Product Data Sheet
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