Contents

Contents
1 Key to symbols and safety instructions
- 1.1 Key to symbols
- 1.2 General safety instructions
- 2 Comfort II RF
  - 2.1 Programmable room thermostat
  - 2.2 Receiver
- 3 Comfort II RF installation
  - 3.1 Receiver mounting
  - 3.2 Programmable room thermostat mounting
  - 3.3 Date and time set up
- 4 Operation
  - 4.1 Normal operation
  - 4.2 Programmable room thermostat
    - 4.2.1 Room temperature indication in Auto mode
    - 4.2.2 Room temperature indication in the On mode
    - 4.2.3 Room temperature indication in the Off mode
    - 4.2.4 Setting a new room temperature
- 5 Programmable room thermostat settings
  - 5.1 User
    - 5.1.1 Heating
    - 5.1.2 HW (Hot water)
    - 5.1.3 Holiday function
    - 5.1.4 Info
    - 5.1.5 Setting
  - 5.2 Installer
    - 5.2.1 System data
    - 5.2.2 Reset all
    - 5.2.3 Heat circuit
    - 5.2.4 Maintenance
    - 5.2.5 System info
    - 5.2.6 Radio settings - Pair/Unpair
  - 5.3 Key lock
- 6 Receiver
  - 6.1 Override push button
  - 6.2 Pairing/Unpairing
- 7 Fault finding and resolution
  - 7.1 Fault table
  - 7.2 Unit replacement - single zone heating, or multi-zone heating utilising a Greenstar wiring centre
    - 7.2.1 Unpair
    - 7.2.2 Pair
- 8 Servicing
- 9 Maintenance
  - 9.1 Programmable room thermostat battery replacement
- 10 ErP Class
- 11 Environment / disposal

Worcester Greenstar Comfort 2 RF 2017 Instructions

Worcester Greenstar Comfort 2 RF 2017 Thermostat manual cover

Pages 20

Year 2017

Language(s)

of 20

Worcester Greenstar Comfort 2 RF 2017 Thermostat Specification

The Worcester Greenstar Comfort 2 RF 2017 Thermostat is a sophisticated wireless programmable room thermostat designed to enhance the efficiency and user-friendliness of heating systems. This device operates using radio frequency communication, enabling seamless connectivity with compatible Worcester Bosch boilers. It features an intuitive interface with a clear digital display, allowing users to easily adjust heating schedules and temperatures to suit their lifestyle.

This thermostat is equipped with a load compensation feature that optimizes boiler efficiency by adjusting the flow temperature based on the room temperature, thus ensuring consistent comfort and energy savings. The Comfort 2 RF offers a seven-day programming capability, enabling users to set different schedules for each day of the week to match their daily routines. It also includes an easy-to-use override function, providing flexibility for temporary changes without altering the preset schedule.

The installation process is straightforward, involving minimal wiring, as the thermostat communicates wirelessly with the receiver, which is typically installed near the boiler. It supports OpenTherm communication, allowing for advanced control functions when used with compatible systems. The thermostat is powered by batteries, ensuring continuous operation even in the event of a power outage.

Designed with user convenience in mind, the Greenstar Comfort 2 RF includes features such as holiday mode, which allows for reduced heating during extended absences, and frost protection to safeguard against freezing temperatures. This thermostat is an ideal choice for homeowners seeking a reliable, energy-efficient solution to manage their heating systems with ease and precision.

Worcester Greenstar Comfort 2 RF 2017 Thermostat F.A.Q.

How do I reset the Worcester Greenstar Comfort 2 RF 2017 thermostat?

To reset the thermostat, press the reset button located on the front of the device. Hold it for 5 seconds until the display resets.

Why is my thermostat not connecting to the boiler?

Ensure that the thermostat is within range of the boiler's receiver. Check the batteries and replace them if necessary. Also, verify that the RF pairing is correctly set up.

How can I adjust the temperature settings on my thermostat?

Use the up and down arrow buttons on the thermostat to set your desired temperature. Confirm your selection by pressing the OK button.

What should I do if the thermostat display is blank?

Check if the batteries are dead and replace them if necessary. If the problem persists, ensure that the thermostat is properly connected to the boiler.

How do I pair the thermostat with the boiler's receiver unit?

Press the learn button on the receiver until the LED flashes. Then, press the pair button on the thermostat to complete the pairing process.

How often should I replace the batteries in the thermostat?

It is recommended to replace the batteries every 12 months or when the low battery indicator appears on the display.

Can I set a schedule on my Worcester Greenstar Comfort 2 RF 2017 thermostat?

Yes, you can set a heating schedule by accessing the schedule menu and programming your desired heating times and temperatures.

What do I do if the thermostat is not responding to input?

Try resetting the thermostat by pressing the reset button. If the issue persists, check the batteries and ensure there is no RF interference.

How can I troubleshoot connectivity issues between the thermostat and the boiler?

Ensure there are no physical obstructions between the thermostat and boiler. Re-pair the devices and check for any wireless interference.

How do I perform a software update on my thermostat?

Consult the user manual or manufacturer's website for instructions on accessing and installing software updates. Typically, updates are performed via the control panel.