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Benchmark Calydra green 24 Nat, Installation And Operating Instructions Manual

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CONDENSING WALL HUNG COMBINATION BOILER

Heating and Instantaneous Domestic Hot Water with TSS®

Fanned Flue System

Installation and Operating

Instructions

Calydra green 24
Calydra green 30

c

Manufactures N°

Model Type

Gas Council N°

200906823037.31

Calydra green 24 Nat

47-980-25

200906826037.31

Calydra green 30 Nat

47-980-26

GB

IE

Summary of Contents for Calydra green 24 Nat

Page 1: ...us Domestic Hot Water with TSS Fanned Flue System Installation and Operating Instructions Calydra green 24 Calydra green 30 c Manufactures N Model Type Gas Council N 200906823037 31 Calydra green 24 Nat 47 980 25 200906826037 31 Calydra green 30 Nat 47 980 26 GB IE ...

Page 2: ... after sales service please return the guarantee registration card enclosed with the boiler without delay STATUTORY REQUIREMENTS The installation of this appliance must be carried out by a CORGI Registered person or other competent person and in accordance with the requirements of the Gas Safety Installation and Use Regulations In addition the installation must also comply with the current bylaws ...

Page 3: ...LLING THE BOILER 8 Method of positioning the boiler on th wall 8 Connecting the boiler to the system 8 Safety valve and condensats drains 8 Fitting the horizontal flue 8 6 ELECTRICAL CONNECTIONS 10 Making the Electrical Connections 10 7 COMMISSIONING AND TESTING 10 Pre commissioning 10 DHW 10 Central Heating 10 Lighting the boiler 10 By pass and pump 11 Post Commissioning 11 Handing over to the Ho...

Page 4: ... fully automatic wall mounted low water content condensing combination boiler It is a room sealed fan assisted balanced flued appliance providing central heating and mains pressure domestic hot water on demand It has electronic ignition and is suitable for all modern electrical control systems The boiler is designed for sealed systems only and a circulating pump expansion vessel together with a pr...

Page 5: ... thermistor 23 TSS Control thermistor 24 Overheat sensor 25 TSS mini cylinder 26 DHW pressure relief valve 49 Silencer 1 INSTALLER S INSTRUCTIONS 27 Display 28 Domestic Hot Water switch 29 Green indicator Domestic Hot Water mode ON 30 D H W temperature reducing key 31 D H W temperature increasing key DHW mode indicator 32 Central Heating switch 33 Green indicator Central Heating mode ON 34 Central...

Page 6: ...ly closed Maximum water capacity of Central Heating system The expansion vessel is pre charged to 0 7 bar 10 lb in2 The vessel is suitable for systems up to 145 litres capacity For systems of a greater capacity an additional expansion vessel will be required Refer to the chart Fig 6 and BS 7074 pt 1 or BS 5449 The minimum initial pressure of the system should be over 0 7 bar 1 to 1 5 bar is recomm...

Page 7: ... including other gas appliances on the same supply Combustion system protection The sulphur level contained in the gas should comply with the European Standards which are maximum 150 mg m3 for a short period in a year average level of 30 mg m3 during one year Electrical Supply The appliance requires an earthed 230V 50 Hz supply and must be in accordance with current I E E regulations It must also ...

Page 8: ...elief valve tube is clear silicone It should terminate below the boiler over a tundish or 22 mm pipe see I Fig 4 which should in turn discharge safely outside the premises Care should be taken that it does not terminate over an entrance or window or where a discharge of heated water could endanger occupants or passers by External termination via condensate siphon The condensate drainage pipe shoul...

Page 9: ...9 5 A Fig 11 A A A Fig 9 Fig 10 L Fig 8 Fig 12 Installing the Boiler continued ...

Page 10: ...1 C75 C74 C31 C38 C27 C26 C25 C1 J12 U12 5V J T S J 1 Fig 14 6 J T C S 7 Pre commissioning Ensure that the system has been adequately flushed Purge gas supply of air and test for soundness Carry out final electrical tests to ensure the correct polarity and earthing continuity DHW Open the main cold feed valve 43 Open all hot taps to purge the DHW system Check for water soundness Check flow rate at...

Page 11: ...t programmer to householder s requirements Set external controls Ensure the Log Book is fully completed with your contact details and required readings and details of the installation Handing Over to the Householder Demonstrate the lighting and operation of the boiler Demonstrate how to maintain the system pressure Demonstrate the operation and setting of the built in clock Explain the benefits of...

Page 12: ...u are at the first section pressing the key will change to the last section of the menu Setting a parameter in a section Press the setting key key of the C H side to enter the modification mode The 2nd and 3rd digits will flash Press the or keys on the DHW side to select the correct value then press the Setting key to accept this modification and to exit the setting mode The 2nd and 3rd digits wil...

Page 13: ...layed if no default is recorded Menu 2 Boiler conditions Indicates the conditions or the configurations of the boiler Section Digit 1 Digits 2 and 3 Software version of display PCB 0 10 to 99 Flue type 2 1 FF variable speed Room thermostat is calling for heat 3 0 no 3 1 yes Theoretical position of the 3 way valve 4 0 DHW 4 1 CH DHW flow temperature in Celsius degrees 5 from 00 to 99 TSS temperatur...

Page 14: ...eration 0 0 Burner only 0 1 Burner and pump Pump speed 1 0 High speed 1 1 Low speed Pump post circulation duration 2 0 0 min From 0 to 5 minutes by step of 0 5 min 2 0 5 min 2 1 0 min 2 5 0 min Maximum Central Heating flow temperature 4 50 C 4 80 C CH anti cycling delay 8 0 0 min From 0 to 7 minutes by step of 0 5 min 8 0 5 min 8 2 5 min 8 5 0 min CH maximum output limitation Model 24 From step 0 ...

Page 15: ...e to maximum output set in menu 4 section 9 Central heating temperature is displayed in celsius degrees The 3 dots indicate that the combustion rate control is ON at maximum output X X Switching off the combustion rate control mode press once press once press once press once Effect Display Locking conditions of the combustion rate control mode boiler in stand by mode D H W draw off room thermostat...

Page 16: ...r only or pump and burner change to Section 9 Adjustment of C H heat output Press the key on the DHW side times The display shows 906 which corresponds to 18 kW which is the factory setting 9 section 9 06 18 kW press the setting key on CH side once the 2nd and 3rd digits flash together Then press the or key on the DHW side to change the C H heat output step between 00 and 10 Press the setting key ...

Page 17: ...thermistor faulty open circuit 10 Domestic Hot Water thermistor faulty short circuit 11 Central Heating thermistor faulty open circuit 12 Central Heating thermistor faulty open circuit 18 Attempt to re ignite 20 Wiring problem 23 Fan speed too low 24 Fan control system defective 25 Thermistor cylinder open 26 Thermistor cylinder bypassed 29 Three way valve blocked in CH mode 31 Communication probl...

Page 18: ...Key to decrease the Central Heating temperature 35 Key to increase the Central Heating temperature 36 Green indicator Power ON 37 Orange indicator Burner ON 38 Red indicator Lock out flame failure 39 Reset button 12 Connecting bracket Taps shown in Open position Fig 21 40 Central Heating flow isolating valve 41 Domestic Hot Water outlet 42 Gas service tap 43 Water service tap 44 Central Heating re...

Page 19: ...ttom of the 3rd digit Switching on the Domestic Hot Water Press key 28 the green indicator 29 will light If there is no water demand the display will show the following graphic In case of draw off a square made of 4 digits will move clockwise on the display Keys 30 and 31 allow the adjustment of the temperature required for the Domestic Hot Water flow During the temperature setting operation the d...

Page 20: ... 4 C the pump and the burner will start 13 15 The manufacturer s guarantee is for 12 months from the date of purchase The guarantee is voidable if the appliance is not installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer To assist us in providing you with an efficient after sales service please return the guarantee registration card enclosed ...

Page 21: ...ence in C H system or Insufficient pressure Gravity effect in the C H system Solution Control gas water and electrical supply fuses Follow the procedure in Section 8 Set up the room thermostat Wait for a few minutes Press the reset button 39 Fig 21 the red led will go out and the boiler will attempt to re light If red the indicator lights too frequently please call your local service centre Purge ...

Page 22: ...ter mains pressures Max operating 10 bar 145 Ib in2 10 bar 145 Ib in2 Flow limiter rate 8 l min 10 l min Compartment ventilation not required not required Natural gas G20 Gas rate C H max 2 64 m3 h 93 ft3 h 3 01 m3 h 106 ft3 h Gas rate DHW max 2 64 m3 h 93 ft3 h 3 01 m3 h 106 ft3 h Gas rate C H DHW mini 0 87 m3 h 31 ft3 h 1 m3 h 35 ft3 h Gas valve restrictor diameter without without Propane L P G ...

Page 23: ...23 ...

Page 24: ...d in this document Manufacturer Chaffoteaux Maury France Commercial subsidiary MTS GB Limited MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone 01494 755600 Fax 01494 459775 Internet www chaffoteaux co uk E mail info uk mtsgroup com Technical Support Help Line 0870 241 8180 Customer Service Help Desk 0870 600 9888 This appliance is suitable for Natural gas or LPG A gas conversion...

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