User Manual

Technical Specification Sheet
Document No. 149-200
April 23, 2015
RDY2000 Commercial
Room Thermostat
Description
The Siemens Series RDY2000 Commercial Room Thermostat
is designed for light commercial HVAC systems that utilize 24
Vac control circuitry. It is compatible with forced air, hydronic, or
steam systems fired by gas, oil or electricity. The thermostat can
control up to three stages of heating and three stages of cooling
in a conventional system and heat pumps systems with up to
two compressors and two stages of auxiliary heat. The
RDY2000 can interface with remote sensors and devices to
completely manage all aspects of room comfort, including
temperature, humidity, and air quality.
Hardware Features
• Compatible with conventional and heat pump applications
• Controls conventional systems with up to three stages of
heating and three stages of cooling
• Controls heat pump systems with one or two compressors
and up to two stages of auxiliary heat
• On-board temperature and humidity sensors
• Standard HVAC relay outputs:
- Compressor 1 (Y1)
- Compressor 2 (Y2)
- Fan (G)
- Heating 1 (W1)
- Heating 2 (W2)
- Reversing Valve (O/B)
• Additional relay outputs can be configured to manage up to
three of the following:
- Humidification
- De-humidification
- Economizer Enable
- Occupancy Notification
- Ventilation
• Four Configurable inputs*:
- Remote temperature sensor
• Outdoor temperature
• Supply/return temperature(s)
• Indoor temperature (remote or averaging)
- Remote humidity sensor
- CO2 sensor
- Occupancy sensor
*Requires purchase of external sensor(s).
Control Features
• Set-up Wizard enables rapid system configuration
• Fully programmable scheduling function:
- 5+2 / 5+1+1 / 7-day capability
- Two or four periods per day
• Real time clock retains time and date for up to 48 hours
upon loss of input power
• System configuration data is stored indefinitely upon loss of
input power
• Interlocks and timers specifically designed for equipment
protection
• Password protected installer set-up menu deters
unauthorized changes
• Programmable fan enables fresh air circulation when not in
heating/cooling mode
• Selectable lockout levels to minimize tampering with
setpoints and schedule.
• Programmable service reminders for humidifier pad, UV
lamp, and air filter
General Features
• Sleek design with backlit 5” LCD touch screen
• Separable back plate with wiring terminals and mounting
holes configured to match most conduit box configurations
(screws and anchors included for drywall mounting).
• Thermostat secures to mounting base with screws to deter
theft and vandalism.
• Designed for horizontal layout
- 5-1/2” W × 4-1/3” H × 1-1/6” D
- 11.5 oz.