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Domestic Heating Controls > Siemens

Siemens - A45105

Siemens are the largest engineering company in Europe, and in addition to products for healthcare, automation and industry, also manufacture a range of heating control products for residential and commercial buildings.

Although today their products carry the Siemens brand, in previous years they have been known as Landis and Gyr heating controls. In the 1970s Landis & Gyr pioneered the RWB range of timeswitches, which, we at PHC supply direct replacements for. We supply a comprehensive range of Siemens mechanical and electronic timeswitches and programmers, room stats, cylinder stats and RF thermostats, and motorised valves.

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TN1235 Digital Room Stat (Programmable), Siemens RDJ100 (Hard Wired) <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>Siemens RDJ100 Programmable Digital Room Stat</title> </head> <body> <div class=\"product-description\"> <h1>Siemens RDJ100 Programmable Digital Room Stat (Hard Wired)</h1> <ul> <li>Programmable daily/weekly schedule for efficient heating control</li> <li>Hard-wired connection for reliable operation</li> <li>Large, easy-to-read LCD display for effortless temperature monitoring</li> <li>Energy-saving features for cost-effective heating management</li> <li>User-friendly interface with simple button controls</li> <li>Manual override function for immediate temperature adjustment</li> <li>Advanced settings for holiday mode, ensuring energy-saving while away</li> <li>Precise temperature control with a range of 5°C to 30°C</li> <li>Compatible with most contemporary heating systems</li> <li>Modern design that blends well with various interior decors</li> </ul> </div> </body> </html>

Digital Room Stat (Programmable), Siemens RDJ100 (Hard Wired) (TN1235)
Distribution Centre Stock:
More than 5
£50.16
£41.80
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TN1275 RF Programmable Room Stat, Siemens RDJ100RF <ul> <li>Large, easy to read LCD display</li> <li>TPI (PID) control</li> <li>Double insulated (no earth required)</li> <li>Large dial for settings</li> <li>Manual override</li> <li>Daily programming</li> <li>Battery powered</li> <li>Volt free contacts</li> <li>Range 20 metres line of sight between transmitter and receiver</li> </ul>

RF Programmable Room Stat, Siemens RDJ100RF (TN1275)
Distribution Centre Stock:
More than 5
£106.02
£88.35
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TN1270 RF Room Stat, Siemens RDH100RF, Volt Free Contacts, 5-30 DegC <div class=\"nts-comp nts-rte container\" data-ste-component=\"copy\"> <div class=\"row\"> <div class=\"col-lg-9\"> <div class=\"P\"> <ul> <li>Large, easy to read LCD display</li> <li>TPI (PID) control</li> <li>Double insulated (no earth required)</li> <li>Large dial for settings</li> <li>Manual override</li> <li>Battery powered</li> <li>Volt free contacts</li> <li>Range 20 metres line of sight between transmitter and receiver</li> </ul> </div> </div> </div> </div>

RF Room Stat, Siemens RDH100RF, Volt Free Contacts, 5-30 DegC (TN1270)
Distribution Centre Stock:
More than 5
£90.06
£75.05
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VF4065 OBSOLETE - Actuator Assy (Metal) Siemens DVA2/5, for CZV 22mm Valves <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>Product Description</title> </head> <body> <div> <h1>Actuator Assy (Metal) Siemens DVA2/5</h1> <p>Enhance your valve performance with the reliable Siemens DVA2/5 Actuator Assembly, meticulously designed for CZV 22mm valves.</p> <ul> <li>Compatible with CZV 22mm valves</li> <li>Metal construction for durability</li> <li>Manufacturer: Siemens</li> <li>Model: DVA2/5</li> <li>High precision control</li> <li>Easy installation and maintenance</li> </ul> </div> </body> </html>

OBSOLETE - Actuator Assy (Metal) Siemens DVA2/5, for CZV 22mm Valves (VF4065)
This Product is Obsolete
Contact Us for an Alternative
£106.02
£88.35
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TN1225 NOW TN1235 - Digital Room Stat (Programmable) Siemens RDJ10, 24-250v <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>NOW TN1235 Digital Room Stat Product Description</title> </head> <body> <h1>NOW TN1235 - Digital Room Stat (Programmable) Siemens RDJ10</h1> <ul> <li>Programmable functionality for automated temperature control</li> <li>Compatible with systems ranging from 24-250 volts</li> <li>User-friendly interface for easy settings adjustments</li> <li>Large LCD display for clear readouts</li> <li>Battery-powered design for convenient placement</li> <li>Energy-saving features for cost-effective operation</li> </ul> </body> </html>

NOW TN1235 - Digital Room Stat (Programmable) Siemens RDJ10, 24-250v (TN1225)
This Product is Obsolete
Contact Us for an Alternative
£86.64
£72.20
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TM1245 Programmer, Siemens RWB29Si Service Interval, 24Hr, 5/2 or 7 <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>Siemens RWB29Si Programmer Product Description</title> </head> <body> <h1>Siemens RWB29Si Programmer</h1> <p>The Siemens RWB29Si is a highly reliable and user-friendly service interval programmer, designed to provide efficient heating control for your home or office.</p> <ul> <li>Easy-to-use interface with clear backlit display</li> <li>Flexible scheduling with 24-hour, 5/2 day, or 7-day programming</li> <li>Service interval function to remind you of boiler maintenance</li> <li>Manual override option for instant control</li> <li>Up to three on/off settings per day for precise temperature regulation</li> <li>Battery backup to maintain settings during power failures</li> <li>Compatible with most domestic heating systems</li> </ul> </body> </html>

Programmer, Siemens RWB29Si Service Interval, 24Hr, 5/2 or 7 (TM1245)
Distribution Centre Stock:
Up to 5
£86.64
£72.20
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VF4010 2 Port Zone Valve, Siemens CZV222, 22mm <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <title>Siemens CZV222 2 Port Zone Valve</title> </head> <body> <div id=\"product-description\"> <h1>Siemens CZV222 2 Port Zone Valve - 22mm</h1> <ul> <li><strong>Valve Type:</strong> 2 Port Zone Valve</li> <li><strong>Brand:</strong> Siemens</li> <li><strong>Model:</strong> CZV222</li> <li><strong>Connection Size:</strong> 22mm</li> <li><strong>Voltage:</strong> 230V</li> <li><strong>Manual Lever:</strong> For filling & draining the system</li> <li><strong>Energy Efficient:</strong> Designed for low energy consumption</li> <li><strong>Easy Installation:</strong> Simplified wiring and quick to fit</li> <li><strong>Durability:</strong> High-performance engineering for a long life span</li> <li><strong>Compatibility:</strong> Suitable for use with Siemens controllers and thermostats</li> </ul> </div> </body> </html>

2 Port Zone Valve, Siemens CZV222, 22mm (VF4010)
This Product is Obsolete
Contact Us for an Alternative
£144.78
£120.65
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VF4013 2 Port Zone Valve, Siemens CZV228, 28mm <!DOCTYPE html> <html> <head> <title>Siemens CZV228 2 Port Zone Valve - 28mm</title> </head> <body> <h1>Siemens CZV228 2 Port Zone Valve</h1> <!-- Product Description --> <p>The Siemens CZV228 is a reliable 2 port zone valve designed for controlling the flow of water in heating and cooling systems. Its 28mm size ensures compatibility with standard piping, making installation and servicing straightforward.</p> <!-- Product Features --> <h2>Features:</h2> <ul> <li>Size: 28mm connections for easy integration into existing systems</li> <li>Motorized two-port control for precise flow regulation</li> <li>Spring-return functionality ensures fail-safe operation</li> <li>Energy-efficient design for optimized system performance</li> <li>Quiet operation, suitable for residential installations</li> <li>Durable build quality for long service life</li> <li>Manual lever for filling & draining during maintenance</li> </ul> </body> </html>

2 Port Zone Valve, Siemens CZV228, 28mm (VF4013)
Distribution Centre Stock:
Up to 5
£161.88
£134.90
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VF4055 OBSOLETE - Actuator Assy (Metal) Siemens DVA3, for CMV Valves <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>Product Description - Actuator Assy (Metal) Siemens DVA3</title> </head> <body> <h1>Actuator Assy (Metal) for Siemens DVA3, CMV Valves</h1> <ul> <li>Durable metal construction for longevity and reliability</li> <li>Compatible with Siemens CMV series valves</li> <li>Smooth and precise actuation for optimal valve control</li> <li>Easy to install with minimal maintenance required</li> <li>High-performance motor ensures consistent operation under varying conditions</li> <li>Designed for use in HVAC systems for proper flow regulation</li> </ul> </body> </html>

OBSOLETE - Actuator Assy (Metal) Siemens DVA3, for CMV Valves (VF4055)
This Product is Obsolete
Contact Us for an Alternative
£121.98
£101.65
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TN1205 Room Stat, Siemens RAA21, Volt-Free SPDT <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>Siemens RAA21 Room Stat</title> </head> <body> <section id=\"product-description\"> <h1>Siemens RAA21 Room Stat</h1> <p>The Siemens RAA21 is a simple and reliable room thermostat designed for controlling the temperature in your living spaces.</p> <ul> <li>Volt-Free SPDT contacts compatible with most heating systems</li> <li>Easy to operate temperature dial</li> <li>Temperature setting range from 8°C to 30°C</li> <li>Bi-metal temperature sensor for accurate readings</li> <li>Slim and compact design for discreet installation</li> <li>No power supply required for operation</li> <li>Wall-mounted for optimal room temperature sensing</li> </ul> </section> </body> </html>

Room Stat, Siemens RAA21, Volt-Free SPDT (TN1205)
Distribution Centre Stock:
From 01/05
£15.96
£13.30
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TN1227 Digital Programmable Room Stat, Siemens RDE100.1 <!DOCTYPE html> <html lang=\"en\"> <head> <meta charset=\"UTF-8\"> <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\"> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"> <title>Siemens RDE100.1 Digital Programmable Room Stat</title> </head> <body> <h1>Product Description</h1> <p>The Siemens RDE100.1 is a digital programmable room thermostat designed for precise temperature control and energy savings in residential or commercial settings.</p> <h2>Key Features:</h2> <ul> <li>Easy-to-read digital display with intuitive user interface</li> <li>Programmable daily and weekly schedules for efficient energy usage</li> <li>Automatic heating and cooling changeover for year-round comfort</li> <li>Optimum start/stop control to reach desired temperature at the set time</li> <li>Battery-powered for convenient placement without the need for wiring</li> <li>Compatible with most heating and cooling systems</li> <li>Compact and sleek design to blend into any interior decor</li> </ul> </body> </html>

Digital Programmable Room Stat, Siemens RDE100.1 (TN1227)
Distribution Centre Stock:
From 01/05
£52.44
£43.70
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VF4050 OBSOLETE - Actuator Assy (Black Plastic) Siemens MAV322 & ZAV222

OBSOLETE - Actuator Assy (Black Plastic) Siemens MAV322 & ZAV222 (VF4050)
This Product is Obsolete
Contact Us for an Alternative
£56.23
£46.86
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