Siemens Landys Gyr (Staefa) REV22 RF Thermostat manual PDF
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TheSiemens REV22 RF Thermostat is supplied with an active self-learning mode, which enables it to automatically adapt to the controlled system (type of building construction, type of radiators,size of rooms, etc.). After a certain learning period, the controller optimizes its parameters and then operates in the mode it has learned.
Table of Contents
- The Display of REV22 RF Thermostat
- Useful Tips
- Mechanical design of controller / transmitter REV22RF
- Frequently Asked Questions about REV22 RF Thermostat
- Technical Specifications of REV22 RF Thermostat
- Additional Notes
- Manuals
The Display of REV22 RF Thermostat
Useful Tips
- Change the REV22 RF Thermostat's battery every 2 years
- Do not use rechargeable batteries
- Suggested Temperatures
- Set Economy temperature to 16°C
- Set Comfort temperature to 18°C +/- 2°C
Mechanical design of controller / transmitter REV22RF
Plastic housing with easy-to-read display, easily accessible operating elements and aremovable cover. The removable battery compartment allows straightforward replacement of the two 1.5 V alkaline batteries. Using the support supplied with the unit, theREV22 RF Thermostat'scontroller / transmitter (including the baseplate) can be placed anywhere in the room.
The baseplate can be fitted to all commercially available recessed conduit boxes ordirectly on the wall before fitting the unit to it.
The base carries the transmitter with theantenna and the housing accommodates the electronics with the 3 DIP switches.
DIP Switch Settings and Their Functions
The REV22 RF Thermostat's controller/transmitter incorporates three DIP switches, each of which serves a distinct purpose in customising the device's operation.
- DIP Switch No. 1 is used foroptimising the start control in the morning (P.1). The switch has four possible settings: OFF, 1/4h/°C, 1/2h/°C and 1h/°C. The 'OFF' setting disables the optimisation feature, whilst the other settings adjust the switch-on point depending on the system’s characteristics: 1/4h/°C is for fast-controlled systems, 1/2h/°C is for medium-controlled systems and 1h/°C is for slow-controlled systems. These settings advance the switch-on time so the set temperature is reached at the desired time.
- DIP Switch No. 2 has multiple functions: it is used forminimum limitation of the setpoint, switching to cooling mode, and setting frost protection. When the minimum setpoint limitation is enabled, the setpoint is limited to 16°C to prevent heat transfer to neighbouring zones. The switch can also be set to activate cooling mode for cooling applications. Furthermore, this switch also allows the user to adjust the frost protection to 3°C, 5°C, or 10°C.
- DIP Switch No. 3 is used forcontrol mode selection. In most cases theself-learning mode is used, this allows the controller to adapt automatically to the system in use. However, in exceptional cases, the user can choose between other control modes.PID 12 mode is a 12-minute switching cycle for slow control systems,PID 6 mode is a 6-minute switching cycle for fast control systems and the2-Pt mode is a pure two-position control with a 0.5°C switching differential.
Frequently Asked Questions about REV22 RF Thermostat
What is the purpose of the REV22RF Thermostat and REV-R.01/1 system?
The REV22RF is aself-learning room temperature controller with an integrated radio transmitter, and the REV-R.01/1 is its corresponding receiver. Together, they form awireless system for controlling room temperature in various settings, especially where wiring is difficult.
What type of control does the REV22RF use?
The controller uses a2-position controller withPID control(Proportional-Integral-Derivative), and it also has a self-learning mode to automatically adjust to the heating system.
What are the power requirements for each unit?
The controller (REV22RF) isbattery-powered , using two 1.5V AA alkaline batteries, while the receiver (REV-R.01/1) ismains-powered with a 230V AC supply.
What is the typical battery life of the REV22 RF Thermostat controller?
The battery life of the controller is approximately2 years.
What are the different operating modes available on the REV22 RF Thermostat?
The REV22RF offers a7-day mode with up to three heating periods per day, as well asthree 24-hour modes with one, two or three heating periods. It also has modes for continuous normal temperature, continuous economy temperature, and a standby mode with frost protection.
How do the DIP switches affect the controller's operation?
There are three DIP switches:DIP switch 1 adjusts theoptimised start control ,DIP switch 2 is for setting theminimum setpoint, cooling mode, and frost protection , andDIP switch 3 selects thecontrol mode(self-learning, PID 12, PID 6, or 2-Pt).
What is the range of the wireless signal between the controller and receiver?
The distance between the transmitter and receiver should not exceed20 meters or 2 floors.
What happens if the receiver loses the signal from the controller?
If the receiver does not receive a signal from the controller for60 minutes , the relay will de-energise and switch off the controlled device. Also, the transmitter will repeat the ON or OFF signal at20-minute intervals to save battery life.
What types of devices can the receiver control?
The receiver is suitable for controlling devices such assolenoid valves, gas burners, forced draught burners, thermic actuators, circulating pumps, electric direct heating, fans of electric storage heaters, zone valves and cooling equipment.
How is the controller calibrated if the displayed temperature is incorrect?
The temperature sensor can berecalibrated if the displayed room temperature does not match the measured room temperature.
Technical Specifications of REV22 RF Thermostat
Here are the technical specifications of the REV22RF controller/transmitter and the REV-R.01/1 receiver:
| Feature | Controller/Transmitter REV22RF | Receiver REV-R.01/1 |
|---|---|---|
| Operating Voltage | DC 3V (2 x 1.5V AA alkaline batteries) | AC 230V +10/-15% |
| Battery Life | Approximately 2 years | N/A |
| Battery Backup | Max 1 minute for battery change | N/A |
| Sensing Element | NTC 68 kΩ at 25 °C | N/A |
| Measurement Range | 0...31 °C | N/A |
| Time Constant | max. 2 minutes | N/A |
| Setpoint Setting Range | 3...29°C (Normal and Economy) | N/A |
| Frost Protection | Adjustable 3/5/10°C, Factory setting 5°C | N/A |
| Setpoint Resolution | 0.2 °C | N/A |
| Switching Time Resolution | 10 minutes | N/A |
| Actual Value Measurement Resolution | 0.1 °C | N/A |
| Actual Value Display Resolution | 0.2 °C | N/A |
| Time of Day Display Resolution | 1 minute | N/A |
| Transmitting Frequency | 868.7 to 869.2 MHz (868.95 MHz factory setting) | N/A |
| Max. Transmitting Power | <10mW / typically 4mW | N/A |
| Data Throughput | 19,200 symbols/s = 38,400 Bit/s | N/A |
| Modulation | Binary frequency changeover BFSK | N/A |
| Frequency Stability | < ±20 ppm (±17 kHz) | N/A |
| Address Range | 16 Bit (0...65535) | N/A |
| Operating Temperature | 0...+35°C | 0...+50°C |
| Operating Humidity | <95% r.h. | <95% r.h. |
| Transport Temperature | -25...+70°C | -25...+70°C |
| Transport Humidity | <95% r.h. | <95% r.h. |
| Storage Temperature | -25...+70°C | -25...+70°C |
| Storage Humidity | <95% r.h. | <95% r.h. |
| Weight | 0.24 kg | 0.16 kg |
| Colour | Signal-white RAL 9003 | Signal-white RAL 9003 |
| Safety Class | III | II |
| Pollution Degree | Normal | Normal |
| Power Consumption | N/A | < 10 VA |
| Frequency | N/A | 50 Hz |
| Relay Switching Capacity | N/A | 230 V AC, 6 (2.5) A |
Additional Notes
- The controller usesPID control and has a self-learning mode to adapt to the controlled system.
- It offers a7-day time switch with up to three heating periods per day and preselected 24-hour operating modes.
- The controller hasoverride, reset, and holiday mode functions.
- The controller can be used forcooling applications, and has a frost protection function.
- The receiver has arelay with a potential-free changeover contact.
- The receiver's relay is de-energized in case of power failure, and the transmitter repeats the signal at 20-minute intervals.
- If the receiver does not receive a signal from the controller for 60 minutes, the relay will be de-energized, switching off the controlled device.
- Both units are designed to be mounted on walls or in commercially available recessed conduit boxes.
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