GREENSTAR 27Ri Compact ErP User Instructions Download Page 7

7

Controls

Greenstar Ri Compact 

ErP

 - 6 720 813 339 (2014/09)

3.1

Operating the boiler

3.1.1 Setting the boiler flow temperature

1. Turn the central heating temperature control knob to the desired level.

The temperature range available is between 30 and 82°C. This not the room temperature but the flow temperature through the 
radiators.
The “click” point provides guidance for the maximum temperature setting for optimum energy efficiency.

2. When there is a demand for heat from the boiler, the burner indicator will be illuminate to indicate that the boiler is firing.

The blue operational/fault light will also be illuminated, to confirm that the boiler is operational.

Fig. 2

Central heating temperature control

▶ Comfort levels within rooms should be controlled by your thermostatic radiator valves and/or room thermostat.

3.1.2 Boiler frost protection

If you are leaving your property unoccupied during cold weather, please leave your programmer on constant and your room 
thermostat set to 15°C.
▶ If the temperature within the boiler falls below 8°C the pump will run to circulate water and prevent the system freezing.

– If the temperature does not rise to 9°C within 30 minutes of the pump operating, the boiler will fire up to provide heat to 

bring the temperature up.

▶ If the temperature within the boiler falls below 5°C the boiler will fire, bringing the boiler temperature up to 12°C to avoid the 

possibility of the system freezing.

▶ This process will be repeated until such time that the boiler temperature does not drop below 5°C.

3.1.3 Turning the central heating off during the summer

▶ To turn your central heating off during warm periods:
▶ Set the programmer to OFF

– Please refer to the programmer manufacturer's instructions.

-or-
▶ Turn the room thermostat temperature down to minimum.

6720648729-02.1W

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Do not switch the boiler off at the mains fused spur. 

Summary of Contents for 27Ri Compact ErP

Page 1: ...0 813 339 2014 09 If you smell gas Well away from the building call the National Gas Emergency Service on 0800 111 999 L P G boilers Call the supplier s number on the side of the gas tank These applia...

Page 2: ...sing combination appliance manufactured by Worcester Bosch Group Thecompanypridesitselfonmanufacturingappliances to the strictest quality control standards throughout every stage of production Worcest...

Page 3: ...the boiler 7 3 1 1 Setting the boiler flow temperature 7 3 1 2 Boiler frost protection 7 3 1 3 Turning the central heating off during the summer 7 4 System pressure 8 4 1 Open vented heating systems 8...

Page 4: ...n component list etc 1 2 Safety precautions If you smell gas Agasleakcouldpotentiallycauseanexplosion Ifyousmellgas observe the following rules Prevent flames or sparks Do not smoke use a lighter or s...

Page 5: ...enchmark Checklist The completed Benchmark Checklist will be required in the event of any guarantee work and may be required by the local Building Control Inspector 2 3 Benchmark standard The Benchmar...

Page 6: ...r controls 6720648729 01 1Wo 1 2 3 4 reset min max 5 Boiler Controls 1 Flame Burner symbol 2 Flame Burner ON indicator green 3 Operational fault indicator blue The blue light is ON when the boiler is...

Page 7: ...iler frost protection If you are leaving your property unoccupied during cold weather please leave your programmer on constant and your room thermostat set to 15 C If the temperature within the boiler...

Page 8: ...d as necessary Your installer will show you how to use the filling loop and advise you of the minimum and maximum pressure indicated on the pressure gauge Check regularly that the pressure is maintain...

Page 9: ...ar marks zone A turn the handle screwdriver slot back through 90 to close the valve 6 The handle screwdriver slot will be at 90 to the valves 7 Remove the hose and replace the blanking caps NOTICE Ext...

Page 10: ...t to the boiler NOTICE Combustible and corrosive materials Chemically aggressive substances can corrode the appliance and invalidate any guarantee Do not store or use any combustible materials paper t...

Page 11: ...the initial guarantee period If you would like to know more about a Worcester Bosch Group service contract please tick the appropriate box on your warranty registration card If your Greenstar gas fir...

Page 12: ...ol for central heating flow on appliance is set too low Increase central heating flow temperature control setting Low temperature setting on the room thermostat Increase setting on the room thermostat...

Page 13: ...the boiler resets the blue operation fault light will no longer be flashing and the boiler will function normally dependant on the room thermostat and optional programmer A reset fault condition will...

Page 14: ...ion Thaw the frozen pipe The pipe can be thawed by applying a hot water bottle a microwaveable heating pack the sort used for muscular aches and pains or a cloth soaked in hot water to the exterior of...

Page 15: ...ed out i e an entry in the Benchmark Checklist Our Field Service Engineer finds no fault with the boiler The cause of breakdown is misuse or with other parts of your plumbing heating system or with eq...

Page 16: ...radiator valves Room thermostats Reducing the setting of the room thermostat by 1 C can reduce fuel consumption by up to 10 New control systems Upgrade your heating control system if necessary with t...

Page 17: ...service has been carried out to the satisfaction of Bosch Thermotechnology Ltd when requested These should be documented as a part of the Benchmark Checklist The boiler has been used only for the norm...

Page 18: ...rly by a syphon within the boiler via a plastic pipe to a drain This pipe must not be blocked or altered in any way Room thermostat programmer A room thermostat programmer must be fitted to control th...

Page 19: ...19 Glossary Greenstar Ri Compact ErP 6 720 813 339 2014 09...

Page 20: ...SPARES 0330 123 9779 LITERATURE 0330 123 9119 TRAINING 0330 123 0166 SALES 0330 123 9669 Worcester Bosch Group Cotswold Way Warndon Worcester WR4 9SW Tel 0330 123 9559 Worcester Bosch Group is a bran...

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