SRT322 is a Z-Wave electronic room thermostat, supplied with a boiler actuator receiver featuring TPI energy saving software. Wireless communications and battery operation make installation quick and simple, by removing the need for disruptive and time consuming wiring. SRT322 has been designed to use the latest energy saving control technology, combined with Secure’s established design and manufacturing expertise, making it suitable for use in most types of heating system.

Proven Z-Wave wireless technology is used for communications between the thermostat and the receiver. The standard operating frequency is 868.42 MHz, but other country-specific frequencies are available. The battery powered thermostat unit displays RF status, while the receiver is mains powered and features volt-free contacts.

SRT322 has additional functionality that can be utilised when integrated within a larger Z-wave system. For example, it can receive set point temperature messages from another controller, and can be used as a temperature sensor.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Application

  • Domestic gas or oil-fired central heating and hot water systems

    A 3-ampere wireless relay is included in the box, making SRT322 ideal for controlling gas or oil-fired central heating systems. TPI software significantly improves the efficiency of the boiler by preventing short-cycling, while maintaining consistent comfort.

    Combi boiler control

    The single-channel relay supplied with the SRT322 enables it to control a combi boiler directly, while the TPI software ensures the most efficient operation. It requires only minimal wiring between the boiler and the relay.

    Zone control

    SRT322 is ideal for controlling individual heating zones and is very easy to install. The thermostat is battery powered and communicates using mesh radio, so it only needs control wiring. This gives maximum flexibility in choosing the best location to mount the device.

    New systems

    SRT322 is powered by batteries and has wireless communications. This makes it a flexible and easy to install thermostat for both new installations and retro-fit ones.  

    Replacement of conventional room thermostats

    SRT322 fits on to the industry standard 6-pin back plate, so it can be fitted as a drop-in replacement for most other existing thermostats. 

  • Key Feature

    • SRT322 uses Z-Wave® mesh radio for communications between the thermostat and the receiver
      • No wires
      • Quick to install
    • Sophisticated time proportional integral (TPI) algorithm
      • Improves economy
      • Tight and accurate control while minimising temperature overshoot
    • Compatible with most heating systems
      • Drop-in replacement for many existing thermostats
    • LCD with current ambient temperature and set point display modes
      • Easy to read and user friendly
    • Volt-free contacts
    • Uses 2 x AAA batteries in thermostat
    • Specification
    • Customer testimonials
    • Thermostat 

      Electrical

      Purpose of control

      Electronic room thermostat RF (independently mounted)

      Supply

      3 V DC (2 x AAA alkaline batteries)

      Software Class

      Class A

      Radio

      Mesh radio type

      Z-Wave

      Operating frequency

      868.42MHz (EU)

      Receiver Category

      Category 3

      Power Class

      Class B

      RF range

      ≈100 m, line of sight

      Mechanical

      Dimensions (W x H x D)

      86 mm x 86 mm x 36 mm

      Case material

      Flame-retardant thermoplastic

      Ball pressure test temperature

      75˚C

      Mounting

      Industry standard 6-pin back plate

      Environmental

      Impulse voltage rating

      Cat II 2500V

      Enclosure protection

      IP30

      Pollution degree

      Degree 2

      Operating temperature range

      0 ˚C to +40˚C

      Compliance

      Design standards

      EN 60730-2-9

      R&TTE

      ETSI EN 300 220-2

      ETSI EN 301 489-3

      Receiver

      Electrical

      Purpose of control

      Electronic multi-purpose control (independently mounted)

      Contact rating

      3(1)A 230V AC

      Contact type

      Micro-interruption

      Supply

      230V AC 50Hz only

      Control action

      Type 1B

      Operating time limitation

      Intermittent

      Software Class

      Class A

      Radio

      Mesh radio type

      Z-Wave

      Operating frequency

      868.42 MHz (EU)

      Receiver Category

      Category 3

      Power Class

      Class B

      RF Range

      ≈100 m line of sight

      Mechanical

      Dimensions (W x H x D)

      86 mm x 86 mm x 36 mm

      Case material

      Flame-retardant thermoplastic

      Ball pressure test temperature

      75˚C

      Mounting

      Industry standard 6-pin back plate

      Environmental

      Impulse voltage rating

      Cat II 2500V

      Enclosure protection

      IP30

      Pollution Degree

      Degree 2

      Operating temperature range

      0˚C to +40˚C

      Compliance

      Design standards

      EN 60730-2-7

      R&TTE

      ETSI EN 300 220-2

      ETSI EN 301 489-3

      What's in the box

      • SRT322 thermostat
      • SSR303 single-channel receiver/relay
      • 2 x standard 6-pin wall plates
      • User guide and installation manual
      • 2 x AAA batteries (long life)

       

       

    • Amazon Customer - 19 Nov. 2015

      “Brilliant product. Easy to install and works great.”