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Heating and hot water for the professionals
01773 828100
I N W A R R A N T Y
T E C H N I C A L H E L P L I N E
01773 828400
THIS IS A CAT II2H3+ APPLIANCE
THEMA F
Installation and Servicing Instructions
Page 1: ...1 Heating and hot water for the professionals 01773 828100 IN WARRANTY TECHNICAL HELPLINE 01773 828400 THIS IS A CAT II2H3 APPLIANCE THEMA F Installation and Servicing Instructions...
Page 2: ...essure switch 19 Spark generator 19 Main printed circuit board 19 Ignition printed circuit board 20 Pump 20 Temperature Pressure gauge 20 Reversing valve assembly 20 Reversing valve front section 21 L...
Page 3: ...ec tion Alternatively the boiler is designed to allow the flue system to be connected to the top of the boiler top outlet flue connection Refer to the flue fitting instructions Electrical components h...
Page 4: ...eating output automatically variable from kW 8 9 8 9 8 9 BTU H 30 000 30 000 30 000 to kW 23 3 18 5 23 3 BTU H 80 000 63 000 80 000 Efficiency 91 5 90 5 91 5 Heating adjustment 38 C to 90 C Expansion...
Page 5: ...799 51214 54628 58042 61456 64871 68285 71699 75113 79552 Heat input kW 11 9 13 2 14 4 15 7 16 9 18 1 19 2 20 4 21 5 22 7 23 8 24 9 26 0 26 9 28 3 Btu h 40678 45130 49332 53481 57579 61627 65626 69575...
Page 6: ...ressure switch 24 Gas cock A Heating return B Cold water inlet C Heating flow D Domestic hot water flow E Gas supply THEMA F 23 E 22 23 A C E 4 16 17 19 6 8 9 10 11 13 12 21 3 14 24 3 Ignition module...
Page 7: ...to right the fixing jig comprises A Heating return with isolating valve m C Heating flow with isolating valve q drain screw r and safety valve s E Gas service cock 1 2 5 7 r p q 25 23 113 23 s A C E m...
Page 8: ...made for filling the system at low level The use of a WRC approved filling loop is strongly recommended connected as shown in diagram 6 Safety valve discharge WARNING It must not discharge above an en...
Page 9: ...talled immediately protect the various couplings to prevent any ingress of foreign materials e g plaster paint etc Terminal position The minimum acceptable spacings from the ter minal to obstructions...
Page 10: ...age boiler upper part onto the hook see dia gram 9 Allow the boiler to seat down onto support plate see diagram 10 Fit filter and washers strictly adhering to the se quential order and directions show...
Page 11: ...aged Calculation of flue cutting lengths Measure wall thickness e mm For side flues measure distance from inside face of side wall to centre line of flue and subtract 176 mm for right hand flue or sub...
Page 12: ...e outer end of pipe A see diagram 16 Fit outer pipe A into wall with groove to the outside Pull pipe inwards to bring rubber sealing collar hard up against external wall see diagram16 Fit internal pla...
Page 13: ...ue and subtract 205 mm for both right and left hand flues to get dimension a mm Refer to table 1 for cutting lengths of both inner and outer flue pipes for each of the various flue options available I...
Page 14: ...arning This appliance must be wired in accord ance with these instructions Any fault arising from incorrect wiring cannot be put right under the terms of the Saunier Duval guarantee Time clock A mecha...
Page 15: ...wing the instructions given in the User Instruc tions set boiler to run in central heating mode Set boiler thermostat for maximum temperature and check that any external controls if fitted are calling...
Page 16: ...inue to run The boiler will be ready to operate when the fault has been cleared In case of power supply failure The boiler no longer operates As soon as power supply is restored the boiler will be aut...
Page 17: ...ss The THEMA F 23 E has a built in bypass This must be adjusted according to the requirements of the sys tem refer to the flow rate pressure curve diagram 3 The boiler is supplied with the built in by...
Page 18: ...e insulation material on inside faces of combustion chamber Cleaning the burner Pull off leads to ignition electrode Pull off lead to flame sense electrode Unscrew and remove screw holding earth lead...
Page 19: ...rnal controls connector from mount ing bracket Undo two screws securing microswitch assembly to reversing valve assembly see diagram 29 Remove microswitch assembly from reversing valve Fit replacement...
Page 20: ...onto inlet connection on replacement pump Fit replacement pump in reverse order to re moval Note Apply silicone grease to pump outlet con nection O ring before assembly Refit pump electrical connecti...
Page 21: ...it U shaped retaining clip Note Use bypass valve fitted to original front sec tion for guidance Fit replacement front section with gasket to rear section Locate front plate and replace six fixing scre...
Page 22: ...f water valve When clip is fitted check con nection by pushing pipe back away from water valve Refit telescopic connecting pipe to inlet of wa ter valve after applying silicone grease to O ring Fit re...
Page 23: ...mini mum clearance of 400mm on one side of the boiler and that no vertical pipework passes between boiler and wall on that side Drain down the heating circuit of the boiler only as described in To rep...
Page 24: ...and Inspection Pull off lead from flame sense electrode Unscrew and remove screw holding earth lead to flame sense electrode Unscrew and remove screw holding flame sense electrode onto burner Fit rep...
Page 25: ...14 8 14 9 6 8 6 6 6 4 6 2 6 3 2 2 2 1 9 1 9 2 8 4 8 3 8 2 8 1 12 1 12 2 P THEMA F 23 E PCB N L P Ex EV1 EV TRA 6 14 6 15 6 11 CTN TH V3V TA K5 K4 Pr FL Ra FA Al 6 12 6 9 13 2 13 3 13 1 13 4 14 1 14 2...
Page 26: ...a logical step by step pro cedure starting at the beginning of the appropriate fault finding chart WARNING Always isolate the boiler from the electri cal supply before carrying out any electrical rep...
Page 27: ...NOT RUNNING FAN NOT RUNNING Replace main PCB YES CHART 4 NO NO Is pump jammed Replace pump motor NO Free pump Replace main PCB Is fan jammed Replace fan NO SPARE PARTS When ordering spare parts quote...
Page 28: ...28 108198 B 06 98...
