Glow-worm Ultracom 2 24cxi Installation And Servicing

Glow-worm Ultracom 2 24cxi Installation And Servicing

Cxi series high efficiency condensing combination boilers
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Ultracom

Installation and Servicing

24cxi
G.C. No. 47-019-10
30cxi
G.C. No. 47-019-11
35cxi
G.C. No. 47-019-12
High Efficiency Condensing
Combination Boilers
Supplied By www.heating spares.co Tel. 0161 620 6677
www.glow-worm.co.uk
cxi
2

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  • Page 1: Installation And Servicing

    Ultracom Installation and Servicing 24cxi G.C. No. 47-019-10 30cxi G.C. No. 47-019-11 35cxi G.C. No. 47-019-12 High Efficiency Condensing Combination Boilers www.glow-worm.co.uk Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 2 Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 3: Table Of Contents

    TAbLE Of CONTENTS I N T R O D U C TI ON Instructions guidance .........................3 Product documentation................... 3 Associated documents ..................3 Explanation of symbols................... 3 Guarantee registration .................... 3 Appliance description .........................3 Safety devices .......................3 Data label .......................4 Gas category ......................4 Regulation and statutory requirements ..............
  • Page 4 TAbLE Of CONTENTS Commissioning ..........................25 12.1 Switching on ......................25 12.2 Filling the CH system (Central heating) ..............25 12.3 Filling DHW Circuit ....................25 12.4 Filling the Condensate Trap ................. 25 12.5 Initial lighting ......................26 12.6 Gas rates ......................26 12.7 Testing heating system ..................27 12.8 Testing domestic hot water system...............
  • Page 5: Introduction

    Your domestic water circuit (hot or cold) is not Guarantee registration protected by the boiler. Thank you for installing a new Glow-worm appliance in your home. Glow-worm appliances are manufactured to the very 2.1.4 Condensate drain blockage highest standard so we are pleased to offer our customers a Comprehensive Guarantee.
  • Page 6: Data Label

    Industry Council who manage and promote the Scheme. The appliance shall only be connected to the gas • Visit www.centralheating.co.uk for more information. type(s) indicated on the data label. 0020085231_02 - 05/10 - Glow-worm - 4 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 7: Hydraulic Schematic

    Pipe for heating safety valve Domestic hot water outlet 13 Main heat exchanger 14 Thermal fuse Cold water inlet 15 flue outlet 16 Silencer Heating return 17 Heating expansion vessel Condensate drain 0020085231_02 - 05/10 - Glow-worm - 5 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 8: Safety Instructions And Regulations

    2) Controls for domestic central heating system and hot water. BRECSU. appliance. • Protect all the electrical components from water while working on the appliance. • Use only original spare parts. 0020085231_02 - 05/10 - Glow-worm - 6 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 9: Recycling

    • Eliminate the waste in accordance with existing regulations. containing a bath or shower. Wiring to the boiler must be PVC 85OC insulated cable, not less than 0.75mm2 (24/0.20mm). 0020085231_02 - 05/10 - Glow-worm - 7 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 10: Technical Data

    9.6 ± 9.6 ± 9.6 ± "tolerance case OFF" 0.2% 0.2% 0.2% Index of electrical protection Inlet pressure mbar IPX4D IPX4D IPX4D (EN 60529) 0020085231_02 - 05/10 - Glow-worm - 8 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 11: Installation

    Additional clearances may be beneficial around the boiler for • Existing ventilation should be investigated for its purpose installation and servicing. before removing. 0020085231_02 - 05/10 - Glow-worm - 9 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 12: Appliance Installation

    (x5) - Flat seal for cold water inlet ¾" (x4) 2.6 Compression fitting (x1) Wall template (x1) Documents bag (x1) Installation and servicing manual (x1) flue book (x1) Instructions for use (x1) 0020085231_02 - 05/10 - Glow-worm - 10 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 13 - In GB, Guidance on vessel sizing is also given in the current digital display with no heating demand. issue of BS5449 and BS7074 Part 1. - In IE, current edition of I.S.813 “Domestic Gas Installations”. 0020085231_02 - 05/10 - Glow-worm - 11 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 14: Dimensions

    "Appliance location ► Clearances", and the flue you are fitting. 7 4 0 3 4 6 4 1 8 3 4 4 0020085231_02 - 05/10 - Glow-worm - 12 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 15 • Drill the holes for the fixing screws in accordance with the wall template. • Fix the hanging bracket on the wall. 0020085231_02 - 05/10 - Glow-worm - 13 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 16: Hydraulic Connection

    Before turning on the cold mains supply to the boiler turn off the cold water inlet to the boiler, lock the filling loop in the closed position and close its filling taps. 0020085231_02 - 05/10 - Glow-worm - 14 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 17: Connection To The Condensate Trap

    • Use 21.5mm plastic pipe to connect to the condensate outlet - do not use metal pipes. It is permissible to use a condensate neutraliser providing that it is checked for correct operation. 0020085231_02 - 05/10 - Glow-worm - 15 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 18 INSTALLATION 0020085231_02 - 05/10 - Glow-worm - 16 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 19: Evacuation Of Combustion Gas

    Regulation homeowner to check the flue outlet and clear visible insects from the terminal end. Only flue accessories supplied by Glow-worm must be used. Different flue outlet configurations can be carried out. • Consult your supplier for more information about the other possibilities and associated accessories.
  • Page 20 0020085231_02 - 05/10 - Glow-worm - 18 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 21: Flue Configuration Description

    Each time an additional 90° bend is necessary (or 2 at 45°), the length (L) must be reduced by 1 m. 1 Gasket (fitted) Type Max length Ø 60/100 10 m Ø 80/125 25 m 0020085231_02 - 05/10 - Glow-worm - 19 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 22 Ø 60/100 10 m Each time an additional 90° bend is necessary (or 2 at 45°), the length (L) must be reduced by 1 m. 0020085231_02 - 05/10 - Glow-worm - 20 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 23: Remove The Front Panel

    • Do not interrupt the mains supply with a time switch or programmer. The boiler is suitable for installation in bathroom zones 2 and 3. 0020085231_02 - 05/10 - Glow-worm - 21 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 24: Electrical Wiring

    • Connect the appliance's power cable to the 230 V single- • Connect mains supply as described. phase network + earth. • Connect the appliance in accordance with the live and neutral connections. 0020085231_02 - 05/10 - Glow-worm - 22 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 25: External Accessories

    • Resistance to earth (L-E) fuse Double pole connector • Polarity check • Connect the mains supply and system heating controls e.g. room thermostat as described. 0020085231_02 - 05/10 - Glow-worm - 23 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 26: Wiring Diagram

    User interface 16 Thermal fuse 17 Water flow sensor fuse 2A 18 Three way valve Connector for 230 V option Main supply 230V 19 Water pressure sensor 10 Pump 0020085231_02 - 05/10 - Glow-worm - 24 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 27: Commissioning

    • Rotate the pump shaft through several turns, then replace the screw. 12.3 filling DHW Circuit • Open the various hot water taps to fill the DHW circuit. 0020085231_02 - 05/10 - Glow-worm - 25 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 28: Filling The Condensate Trap

    20mbar (8in wg) at with the instructions. the boiler. • Check the integrity of the flue system and flue seals. 0020085231_02 - 05/10 - Glow-worm - 26 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 29: Testing Heating System

    Model kg/h kg/h 24cxi 0.54 19.07 2.70 95.35 0.40 1.98 30cxi 0.65 22.95 3.24 114.42 0.47 2.38 35cxi 0.95 33.55 3.77 133.14 0.68 2.77 0020085231_02 - 05/10 - Glow-worm - 27 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 30: Specific Adjustment

    • Press on button under the symbol to access the parameter to modify. • Press on button under the symbol to modify the value of the parameter. 0020085231_02 - 05/10 - Glow-worm - 28 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 31 Maximum temperature setting for d.71 °C Select a value between 50°C and 80°C. heating outlet 0 = Not detected d.90 Detection of eBUS controller 1 = Detected 0020085231_02 - 05/10 - Glow-worm - 29 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 32 All parameters stored in EEPROM (main board + appliance interface) are reset to factory settings if d.96 Factory reset this function is activated. 0 = deactivated 1 = activated 0020085231_02 - 05/10 - Glow-worm - 30 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 33 Make sure that the air vent is open. S.96 Test temperature sensor for heating return. Test temperature sensors for heating flow and return, or the S.98 appliance has a fault. 0020085231_02 - 05/10 - Glow-worm - 31 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 34: Co2 Measurement

    • Leave these instructions and the ‘Benchmark’ Installation, Commissioning and Service Record with the user. 0020085231_02 - 05/10 - Glow-worm - 32 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 35: Maintenance

    • Check that there is a gas supply to the boiler and the gas service isolation valve is turned on. • Check pressure at the gas service isolation valve. 0020085231_02 - 05/10 - Glow-worm - 33 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 36: Fault Memory

    • Check the pump speed. • Check that the flow and return heating isolation Malfunction of the pump (excessively Water circulation fault rapid temperature increase) valves are open. 0020085231_02 - 05/10 - Glow-worm - 34 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 37 • Check connection from user interface PCB to main User interface fault Defective user interface PCB. • Replace user interface. 0020085231_02 - 05/10 - Glow-worm - 35 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 38: Functional Flow Diagram

    MAINTENANCE Functional flow diagram 15.4 15.4.1 Central Heating 15.4.2 Domestic Hot Water 0020085231_02 - 05/10 - Glow-worm - 36 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 39: Gas Conversion Adjustments

    P. max. See chapter "Specific adjustment ► Appliance technical settings and parameter list ► Test modes". • Wait approximately 5 minutes to read a stabilized CO2 value. 0020085231_02 - 05/10 - Glow-worm - 37 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 40: Restart - Re-Check Commissioning

    • Before putting the appliance into operation, follow the instructions within the chapter Specific adjustment. • Open one or more hot water taps to drain the hot water circuit. 0020085231_02 - 05/10 - Glow-worm - 38 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 41: Servicing

    Health and Safety Executive in accordance with the rules in force in the • Check the appliance’s electrical safety. countries of destination. • To obtain service, please call your installer or Glow-worm’s 18.1.3 Cleaning of the components own service organisation.
  • Page 42: Casing Removing

    • Position the control box (1) into the service position. internal components, proceed as follows: • Connect the CO2 combustion analyser to the relevant test point, see diagram opposite. 0020085231_02 - 05/10 - Glow-worm - 40 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 43: Servicing

    CO/CO2 ratio is acceptable. adjustment ► Appliance technical settings and parameter list ► Test modes". • Advice can be sought from the Glow-worm Technical Helpline. • Wait approximately 5 minutes to read a stabilised CO2 value. • Check that the value is within the range specified in table in 18.4...
  • Page 44: Silencer

    Adjust the pressure if necessary. • Following the installation of a new expansion vessel, fill and purge the appliance or installation, if necessary. 0020085231_02 - 05/10 - Glow-worm - 42 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 45: Heating Filter

    • Reassemble the components, taking care to position the gaskets correctly. • Clean and replace. • Start the siphon (3) and fill with water. 0020085231_02 - 05/10 - Glow-worm - 43 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 46: Combustion Block

    Spark electrode gasket 13 burner Spark electrode 14 Gas valve burner retaining nut 15 fan Burner retaining screw 16 fan connection Thermal fuse connection 17 Gas pipe 0020085231_02 - 05/10 - Glow-worm - 44 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 47: Service Completion

    • Check that its surface is not damage. Replace the burner if necessary. • Following the verification or replacement of the burner, assemble the burner group as described in the following chapter. 0020085231_02 - 05/10 - Glow-worm - 45 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 48: Replacement Of Parts

    19.3 • Do not use reconditioned or copy parts, only use original parts supplied by Glow-worm. • If a part is required, contact the Glow-worm service organisation. • Please quote the name of the appliance, this information will be on the name badge on the front of the appliance.
  • Page 49 • Remove the expansion vessel (2). • Fit a new gasket between the expansion vessel and connector. • Refill, vent and pressurise the boiler. 0020085231_02 - 05/10 - Glow-worm - 47 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 50: Hydraulic Block

    17 Low water pressure sensor retaining 27 Pump head retaining screws Plate-to-plate heat exchanger retaining clip 28 Pump head 18 Heating return pipe retaining clip 29 Automatic air vent retaining clip 0020085231_02 - 05/10 - Glow-worm - 48 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 51 • Refill, vent and pressurise the boiler. pressure sensor (16). • Fit the new low water pressure sensor. • Refill vent and pressurise the boiler. 0020085231_02 - 05/10 - Glow-worm - 49 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 52: Combustion Block

    MAINTENANCE 19.5 Combustion block 0020085231_02 - 05/10 - Glow-worm - 50 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 53 2 retaining plates (18) and (22) from the heat exchanger. • Pull the heat exchanger towards you to extract it from its 2 side rails. 0020085231_02 - 05/10 - Glow-worm - 51 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 54: Condensate Trap

    • Remove the fan (33) and the gasket (35). • Fit the new gasket (35). • Screw the new fan to the burner door (11). 0020085231_02 - 05/10 - Glow-worm - 52 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 55: Pcb

    • For access, refer to chapter "Main PCB". • The fuse is located at top right hand side of the PCB, see chapter "Electrical connection ►Wiring diagram". 0020085231_02 - 05/10 - Glow-worm - 53 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 56: Spare Parts

    20.1 Short List of Parts • When ordering spare parts, contact Glow-worm’s own service organisation. • Please quote the name of the appliance and serial number, to be found on the data label. If ordering from British Gas also quote the G.C.
  • Page 57: Short List Of Parts

    MAINTENANCE 20.2 Short List of Parts 0020085231_02 - 05/10 - Glow-worm - 55 - Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 58: Manual Handling

    Manual Handling Positioning of Appliance for final Installation – no obstructions. IMPORTANT. With regards to the Manual Handling Operations, 1992 Recommend 2 persons lift appliance to position into place. Fit bracket Regulations, the following lift operation exceeds the recommended securely onto wall before lifting appliance into position. Obtain firm weight for a one man lift.
  • Page 59: Declaration Of Conformity

    Declaration of Conformity Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 60 Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 61 Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 62 Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 63 Supplied By www.heating spares.co Tel. 0161 620 6677...
  • Page 64 Because of our constant endeavour for improvement, details may vary slightly from those shown in these instructions. Glow-worm, Nottingham Road, Belper, Derbyshire. DE56 1JT Supplied By www.heating spares.co Tel. 0161 620 6677...

This manual is also suitable for:

Ultracom 2 30cxiUltracom 2 35cxi

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