RT520
Digital programmable thermostat with OpenTherm communication
FEATURES:
- OpenTherm communication (OT+ 4.0) gives you two-way communication between boiler and thermostat.
Thermostat modulates boiler power to achieve maximum efficiency and comfort, has automatic detection of OT+ protocol, boiler error codes displaying and DHW temperature regulation - You can choose histeresis or built-in TPI algorithm (for Underfloor systems, radiator systems or electrical systems)
- Optimal start & stop function available to maintain a setpoint temperature precisely
- Clear and big backlighted LCD display – very ease to read, perfect for seniors
- Heating / cooling mode
- Surface mounting
Perfect solution for lanlords of real estate:
- Service mode secured by PIN code
- You decide what maxiumum/ minimum temperature can be set by the user
Technical specification:
| Supply | 2 x AA alkaline batteries |
|---|---|
| Rating max | 3 (1) A |
| Outputs | NO/COM/NC or OpenTherm |
| Temperature range | 5 - 33.5ºC |
| Temperature accurancy | 0.5 or 0.1ºC |
| Hysteresis |
±0.25ºC or ±0.5ºC |
| Dimension [mm] | W-118 x H-95 x D-26 |
OpenTherm compatible boilers:
| Brand | Model |
|---|---|
| Alpha Heating | E-Tec S E-tec Plus E-tec Evoke Intec GS |
| Atag | iC iC Economiser iS |
| Baxi | 100 Combi 200 Combi 400 Combi 600 Combi |
| Daikin | D2CND 24Kw D2CND 28kw D2CND 35kw |
| Ferroli | i25 Condensing Combination Boiler i29 Condensing Combination Boiler |
| Ideal | Independent + Combi Independent Combi Independent System Logic Combi+ Combi C Logic Combi C24, C30, C35 (via seperate harness kit) Logic Code Combi (via separate harness kit) I-mini C24, c30 (via separated harness kit) Vogue Combi C26,C32, C40 Logic + System Logic + Heat |
| Intergas | Intergas Rapid Intergas Rapid Plus Combi Compact, Compact Range ECO RF Xtreme Xclusive |
| Main | Eco Compact Combi 25-30 |
| Navien | Navien NCB |
| Ravenheat | Avanta, Quinta Ace Quinta Pro Gas 110 Eco |
| Vokera | Evolve C Evolve S Linea One (via OpenTherm Kit Part_1221179) Vision Combi (requires control interface 294501430 Compact A (requires control interface 29450143) Verve (heating only mode) Mynute i (heating only mode) Vision System (heating only mode) Unica i Vibe Vision C Linea HE Mynute A Mynute HE Unica HE |
| Viessmann | Vitodens 100W Type WB1A (Connection: X3.3 and X3.4) Vitodens 100W Type WB1B (Connection: X21.1 and X21.2) Vitodens 100W Type WB1C (Connection: X21.1 and X21.2) Vitodens 200-W WB2B 26+ 35 kW (via Expansion Module OT and OT-A8 + _Terminal -10 and +10 are on expansion A8 boiler) Vitodens 200-W WB2C, B2HA,B2JA, B2LA (via icm Expander OpenTherm) |
| Vaillant (via Vaillant VR33 module) |
Ecotec Pro Ecotec Plus Ecotec Exclusive Ecofit Pure |
| Worcester Bosch (via Nefit EMS-OT OpenTherm converter) |
EMS capable boilers Greenstar i Greenstar i Junior (Manufactured after July 2013) Greenstar Si Compact Greenstar CDi Compact Greenstar CDi Classic (Manufactured after 16th January 2007 with software version CF12.10 onwards) Greenstar Highflow CDi Greenstar 12i System - 24i System (Provided optional integral diverter valve is installed, manufactured after February 2011) Greenstar 27i System - 30i System (Provided optional integral diverter valve is installed) Greenstar CDi Classic System (Provided optional integral diverter valve is installed, manufactured after 16th January 2007 with software version CF12.10 onwards) |
Note: Worcester Bosch OpenTherm information is very limited, please accept this list as capable, but not yet confirmed. There is also no confirmation of hot water working with OpenTherm.