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Summary of Contents for Saunier Duval Combitek F 23 E
- Page 1 COMBITEK F 23 E Installation and Servicing Instructions 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 II...
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Page 2: Table Of Contents
USER INSTRUCTIONS If the pressure shown on the pressure gauge is less INTRODUCTION The Combitek F 23 E is a wall mounted combination than 1.5 bar the system must be filled up. boiler providing central heating and instantaneous domestic hot water. -
Page 3: Controls And Lighting
USER INSTRUCTIONS The control panel is located on the front bottom section. The controls on this panel allow the boiler to be started, shut down and controlled during use. 1 - Pressure / Temperature gauge 2 - Hot water / Heating temperature control &... -
Page 4: Cleaning
INSTALLATION INSTRUCTIONS Accessories INTRODUCTION A range of accessories are available including, The Combitek F 23 E is a wall mounted combination vertical flue components. For further information, boiler providing central heating and instantaneous contact you nearest stockist. domestic hot water. -
Page 5: Dimensions
INSTALLATION INSTRUCTIONS Pump: The performance of the pump varies according to the pump bypass setting, see diagram 3. Bypass fully shut Open 1/4 turn Open 1/2 turn Open 1 turn Open 2 turns 1000 Flow rate through heating system (I/h) (10 kPa = 1 m WG) Diagram 3 DIMENSIONS... -
Page 6: Boiler Schematic
INSTALLATION INSTRUCTIONS BOILER SCHEMATIC 3 - Ignition module 19 - Overheat thermostat 4 - Heating temperature adjuster 20 - Flame sense electrode 6 - Pressure gauge 21 - Loss of water pressure switch 7 - non-return valve 22 - Fan 8 - Expansion vessel 23 - Air pressure switch 9 - Pump... -
Page 7: Terminal Positions
HEATING SYSTEM DESIGN device is fitted. The combitek F 23 E is compatible with any type of sealed system installation, i.e. radiators, fan Heating system connections - Pipe Ø 22 mm. -
Page 8: Boiler Installation
INSTALLATION INSTRUCTIONS Isolating cock Flow restrictor Boiler connections Heating return Cold water mains inlet Heating flow Hot water outlet Filter Gas connection Fibre Safety valve discharge connection washer Diagram 7b Diagram 7a Statutory requirements sheet metal parts to avoid the possibility of personal The installation of this boiler must be carried out by injury. -
Page 9: Horizontal Flue Installation
INSTALLATION INSTRUCTIONS HORIZONTAL FLUE INSTALLATION • Fit gasket (H) onto underside of elbow (C) • Carefully insert ‘o’ rings (J) into upper and lower parts of inner elbow • Fit elbow onto boiler using screws provided (I) • Offer flue pipes to elbow, note that pipe (B) should be inside pipe (A) before connection. -
Page 10: Vertical Flue Installation
INSTALLATION INSTRUCTIONS VERTICAL FLUE INSTALLATION Diagram 12 A ..............Gasket Show vertical kit adaptor & terminal B ............. Vertical adaptor C ..............‘O’ ring D ............... Collar E ..............Clamp F ..............Screws G ..............Terminal H ..............Screws · Fit gasket (C) onto underside of vertical adaptor (B).. -
Page 11: Electrical Connection
DO NOT INTERRUPT THE MAINS SUPPLY TO THE BOILER ELECTRICAL CONNECTION WITH A TIME SWITCH OR PROGRAMMER. Warning: This boiler must be earthed. The combitek F 23 E is delivered with 1metre mains All system components must be of an approved supply lead ready connected. type. -
Page 12: Commissioning
INSTALLATION INSTRUCTIONS COMMISSIONING The commissioning and first firing of the boiler must only be done by a competent person. Gas installation It is recommended that any air is purged from the supply at the gas inlet test point on the left hand side of the gas valve, see diagram 14. -
Page 13: Adjustments
The boiler will be ready to operate when the fault within the system. has been cleared. The COMBITEK F 23 E boiler has a built in frost pro- In case of power supply failure tection device that protects the boiler from freez- The boiler no longer operates. -
Page 14: Setting
Diagram 18 Bypass The COMBITEK F 23 E has a built-in bypass. This must be adjusted according to the requirements of the system, refer to the flow rate pressure curve (dia- gram 3). The boiler is supplied with the built-in by- pass open a half a turn. -
Page 15: Servicing Instructions
SERVICING INSTRUCTIONS ROUTINE CLEANING ANS INSPECTION To ensure the continued efficient and safe opera- tion of the boiler it is recommended that it is checked and serviced at regular intervals. The fre- quency of servicing will depend upon the particu- lar installation conditions and usage, but in gen- eral once a year should be enough. -
Page 16: Replacement Of Parts
SERVICING INSTRUCTIONS REPLACEMENT OF PARTS To replace microswitch assembly • Disconnect microswitch by pulling off plug. • Unclip external controls connector from mount- ing bracket. • Undo two screws securing microswitch assembly to reversing valve assembly, see diagram 20. • Remove microswitch assembly from reversing valve. - Page 17 SERVICING INSTRUCTIONS • Close isolating valves on flow and return connec- tions. It is not necessary to drain entire heating circuit to carry out this work. • Gain access to pump connection as described in 'To replace main PCB'. • Pull off pump connector and earth lead. •...
- Page 18 SERVICING INSTRUCTIONS Note: fit expansion vessel pipe and loss of water switch to reversing valve assembly before pump, to ensure that it is correctly located. Apply silicone grease to all 'O' rings and hoses prior to assembly. • Open isolating valves on flow and return con- nections, refill, vent and pressurise boiler.
- Page 19 SERVICING INSTRUCTIONS should NOT have to be forced. If resistance is ex- perienced, either pipe is not correctly fitted in rear of water valve or clip is not being fitted properly through slot between back plate and plastic hous- ing of water valve. When clip is fitted, check con- nection by pushing pipe back away from water valve.
- Page 20 SERVICING INSTRUCTIONS To replace expansion vessel left hand side of boiler, see diagram 28. • Unclip thermistor from pipe. • Pull off electrical connections from thermistor. 1 Boiler in place Note: The expansion vessel can be replaced with • Fit replacement thermistor in reverse order to re- the boiler in place provided that there is a mini- moval.
- Page 21 SERVICING INSTRUCTIONS To replace flame sense electrode • Reconnect ignition and flame sense leads to • Remove combustion chamber from boiler as electrodes. Reconnect earth lead to flame sense described in 'Routine Cleaning and Inspection'. electrode. The polarity of the ignition leads is not •...
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Page 22: Schematic Wiring Diagram
SERVICING INSTRUCTIONS SCHEMATIC WIRING DIAGRAM CN 7 - ON/OFF switch - Gas valve - Pump - Ignition unit SW3 - Microswitch - Ignition electrode - Hight limit thermostat - Flame sense electrode - Loss of water switch TRA - Transformer EV1 - Gas valve modulating coil - Air pressure switch - Room thermostat (if fitted) -
Page 23: Fault Finding
SERVICING INSTRUCTIONS necessary to determine exactly which aspects of the FAULT FINDING boiler are working correctly and which are not. Prior to fault finding, check : For example: Inlet gas pressure = 20 mbar If the domestic hot water works but the heating Electrical supply = 240 V - 50 Hz doesn’t, refer to chart No. -
Page 24: Spare Sparts
SERVICING INSTRUCTIONS PUMP NOT RUNNING NO HOT WATER Open hot tap fully. Does burner fire ? Is there 240 v at pump ? Is pump jammed ? With selector switch/thermostat position and turner to maxi- Is there 240 v at Replace Refer to chart n 2 Free pump...
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