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Suitable for:

● 

Installer 

● 

Adjustment Personnel 

● 

Maintainer

Condensing wall 

mounted gas boiler

Manual for Use, Installation 

and Maintenance

PIN.NO : 0063CR7770

Summary of Contents for LL1GBQ24-B26CG

Page 1: ...Suitable for Installer Adjustment Personnel Maintainer Condensing wall mounted gas boiler Manual for Use Installation and Maintenance PIN NO 0063CR7770...

Page 2: ...stall the boiler 16 4 7 Pay attention to noise control during installation 16 4 8 Open the box 16 4 9 Minimum distance of installationandmaintenance 17 4 10 Dimension of ue mounting hole 18 4 11 Insta...

Page 3: ...boiler will work more reliably and e ciently We recommend annual inspection so that this manual will keep the boiler maintenance records Your legitimate rights and interests will not be a ected To the...

Page 4: ...loss and injury to persons animals and personal property the manufacturer will not take possibility for such To ensure e cient and safe operation it is recommend that the boiler is maintained annually...

Page 5: ...lease turn it o then turn o the gas valve and do not attempt to repair it by yourself Please contact with a quali ed professional personnel instead Before performing any maintenance or repair work on...

Page 6: ...ried out by the quali ed personnel in accordance with local gas safety installation and use The technicians who undertake adjustment and maintenance must be authorized by the manufacturer If the boile...

Page 7: ...istauthorizedby ROCdistributor Partsreplacementmustbeusedoriginalspareparts Thisisanecessary conditionforboilerwarrantyandmaintenance Do not use or store any ammable or explosive materials such as gas...

Page 8: ...set 8 Mode 1 2 3 4 5 6 7 8 Heatingtiming Fireclass Heating temperatureindication Heatingoperation stateselection Timeweek Operationstate Hotwater temperature Wintermode Malfunction Timing Anti freeze...

Page 9: ...Threewayvalvemotor 9 Plateheatexchanger 10 Waterpressureswitch 11 Hotwatertemperaturesensor 12 Overheatprotector 13 Heatingtemperaturesensor 14 Expansiontank 15 Backwatertemperaturesensor 16 Safetyrel...

Page 10: ...10 Unit mm 3 4 Overall dimension and outlet position map A Gas B Domestic hot water C Cold water D Heating back water inlet E Heating water outlet LL1GBQ24 B26CG...

Page 11: ...y water maximum pressure Sanitary water minimum pressure Expansion tank capacity Expansion tank preset pressure Heating system maximum pressure NG normal pressure Performance Heating water maximum tem...

Page 12: ...equire speci c ventilation If the boiler is installed in a cupboard or compartment ventilation is not required for cooling purposes The gas installation and tightness test must be in accordance with r...

Page 13: ...scale can greatly a ect the e ciency of heat exchanger because small areas of scale can cause a high increase of the temperature in the metal parts and therefore increase the heat pressure of heat exc...

Page 14: ...for most modern electronic time and temperature controls The adding of such external controls can be bene cial to the e cient operation of the system Installation position The boiler can be installed...

Page 15: ...inverted pipe Spray gun is matched in the pipe ii A trap giving a water seal of at least 75mm must be incorporated into the pipe run there also must be an air beak upstream of trap iii Connect into th...

Page 16: ...ccessories described in the following list are included in the boiler package Please comply with the relevant national or region standard or guidelines when installing the wall mounted gas boiler The...

Page 17: ...e boiler such as decoration etc please also ensure that it is such minimum distance otherwise it may a ect the usage and maintenance of the boiler in the future We advise that the minimum distances fr...

Page 18: ...and pass through the wall which is used for installing forced draught ue Use expansion bolts to x the product hang up plate on the walls Lift the boiler up so that the two square holes behind horizont...

Page 19: ...st be installed in the place where the damage is impossible to occur In cold or humid weather water vapor can condense and leave on the ue terminal The e ect of such steaming must be considered If the...

Page 20: ...ystem includes 1 Seal for horizontal ue duct and external wall 2 90 elbow 3 30mm ue clamp 4 48mm ue clamp 5 Internal trim ring 6 External wall seal 20 Flue system Standard ue installation Flue Clamp M...

Page 21: ...t Ensure that the ue is not blocked Ensure that the ue is installed and xed in accordance with below these instructions Coaxial pipe room accessories 60 100 level 1 Silicon O ring 60mm 1 Elbow 90 2 In...

Page 22: ...rtical axis of ue the elbow can rotate with 360 Before installing the ue ensure the maximum length of ue ducting does not exceed 5m see picture 5 6 and consider all of elbows and its bend You should r...

Page 23: ...notlowthan20mbar Water way connection Beforeconnectingthecoldwaterpipe makesurethattherelativepipesystemhasbeen thoroughlywashed Ifnot please rstlythoroughlywashhotandcoldwaterpipeline Check that the...

Page 24: ...nagebyusingpipe otherwise when the safety relief valve discharge water it may injury the passerby and articles The boiler manufacturer will not take any responsibility for this 7m frequency conversion...

Page 25: ...les The above basic safety requirements must be checked If you have any questions please ask the installer engineer to check the boilers carefully The manufacturer will not take any responsibility for...

Page 26: ...k can cause smoke to discharge into surrounding air in a short time At the same time before supplying heating domestic hot water to the users the boiler should be connected to a heating supplying netw...

Page 27: ...ater outlet Fill water to heating system Access to the tap water and heating water adding connector then open the tap water adding connector and heating water adding connector valve in turn ll water t...

Page 28: ...rrentregulations Ensureminimalmaintenancespacewhenfurniture walls or other obstructions surround the equipment Make sure that all heating and domestic hot water lines connected to the wall hung boiler...

Page 29: ...g is clean so that the residue does not a ect the operation of the boiler The quali ed professional installer must make the following check before the rst operation a Check the leak tightness of the g...

Page 30: ...setto45 C atanytimetoperformhotwaterwork thesesettingcanbemadedirectly 30 1 Timing 2 Functionswitch 3 Up 4 ON OFF Power 5 Informationindicationdisplay 6 Down 7 Reset 8 Mode 1 2 3 4 5 6 7 8 5 5 Start...

Page 31: ...ode longpress Timing button formorethan5stomakeDayTiming setting from00to23 Firsttimingperiod ashes whenpressing Up button itwillallow the heating during this period and when pressing Down button it w...

Page 32: ...function itwill ashindication otherwiseitwillbeno ashindication Anti freezingicon Whenthepumpisanti freezing itwillbestaticindication Whenit isheatingtheanti freezing itwill ashindication Itallowsanti...

Page 33: ...meicon itindicatespresenttime Weekicon ItwillindicatewhenitisOFFandcarryoutWeekTiming mode presentdatewillbeorangeindication Timingperiodicon Whenthetimesettingfunctionisactivated itwill indicate Andi...

Page 34: ...alysis or power adjustment CO2 in the gas and fan speed value shall comply with the following table Warning When the gas inlet pressure is not between 17 25 mbar then prohibit the following operation...

Page 35: ...ence between the air inlet portand uegasoutletportofthe coaxial ue Pay attention to the installation condition in the windy case the ow back ue gascannotexceed50g min The condensing water in the ue ca...

Page 36: ...ew owner or installer can read these information All accessories of wall hung boilers should be used all original components This equipment can only be used for the purpose speci ed in the instruction...

Page 37: ...gas supply is smooth and water in the heating system is enough However when there is some external failure such as gas or power outage or air exhaust system are abnormal the inner monitoring device wi...

Page 38: ...turns o four seconds The communication is interrupted or disturbed 0 5bar pressure 3 5bara or the water pressure switch is not acted Variable frequency pump has malfunction or electrical power 12W Th...

Page 39: ...screws of bottomplate Remove the upper and lowereightscrewsonthe side plate and the two screws on the cover removethecover Lift the plastic panel frombottom Unscrew the 4 screws ofthe sealing cover Di...

Page 40: ...40 3 Unscrew the 4 screwson thefrontofthesideplate Dismantlethesideplate Basic dismantling Tools...

Page 41: ...rcuit component Take out the screws on bothsidesofelectricalbox Open the Electrical box as shown above Removethefuse Take out the electrical boxbackcoverupward Electrical box operation Fuse replacemen...

Page 42: ...eElectrical boxasshownabove Dismantlethe3screwson thebackofdisplaycover Remove the cover ofdisplay Dismantlethe4 screws on the PCB RemovethePCB PCB replacement Display replacement time 6min Tools time...

Page 43: ...43 2 Dismantlethe4screwson therearcoverofdisplay Takeouttherearcover Takeoutthedisplay Display replacement Tools...

Page 44: ...44 7 3 Water system...

Page 45: ...45 1 1 Take out the safety valveclip Takeouttheairexhaust valve manually Take out the safety valvemanually Safety valve dismantling Air exhaust valve dismantling time 5min Tools time 2min Tools...

Page 46: ...e the 2 screws onplateheatexchanger by 5mm internal six anglescrewdriver Separate the bottom plateandwatersystem asshownabove Takeouttheplateheat exchangerdownward Plate heat exchanger dismantling tim...

Page 47: ...gnitionneedleand ame detection needle as shown above then take out the ignition needle anddetectionneedlemanually Unscrewthetwoscrews onheatingtemperature sensor and take the temperaturesensorout Comb...

Page 48: ...ethod to dismantle the combustion chambersealingcover Dismantle the 4 nuts connected with fan by 8mmspanner Dismantle the connection of the gas pipe by 24mm spanner takeoutthefanafter dismantlingthega...

Page 49: ...cdismantling method remove the left sideplate Takeouttheclipofheating inletandoutletwaterpipe thenunscrewheatinginlet and outlet water pipe connectionnutsby30mm spanner takeheatinginlet andoutletwater...

Page 50: ...2 50 Take out the condensate waterdrainagebellows Dismantlethe4screws which the heat exchanger connects with the bottom plate then take out the wholeheatexchanger Heat exchanger dismantling Tools...

Page 51: ...ualinspection cleanifnecessary Water owvolumesensor Maintenanceinterval yearly Method visualinspection cleanif necessary checkthewater owvolume Expansiontank Maintenanceinterval yearly Method thepress...

Page 52: ...ly Methods visualinspection cleanifnecessary Condensatewatercollector Maintenanceinterval yearly oraftercleaningthe mainheatexchanger Method visualinspection cleanifnecessary add waterbeforereplacemen...

Page 53: ...sensor Hot water temperature sensor Back water temperature sensor Flue gas temperature sensor Outside temperature sensor Room temperature controller Power wire AC 230 V External circulation pump Three...

Page 54: ...54 Memo...

Page 55: ...55 Memo...

Page 56: ...The user s manual can be translated to the o cial language of destination country not limited ony English version...

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