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Summary of Contents for Ferroli OPTIMAX HE 31 S
- Page 1 OPTIMAX HE 31 S wall-mounted gas fired, pre-mix condensing system boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE FOR THE UNITED KINGDOM AND EIRE G.C. No 41-267-26...
- Page 2 “This record must be completed and left with the end user”. Ferroli is a member of the Benchmark initiative and fully supports the aims of the programme. Benchmark has been introduced to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central heating systems to ensure safety and efficiency.
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Page 3: Table Of Contents
OPTIMAX HE 31 S 1. OPERATING INSTRUCTIONS ..............4 1.1 Introduction ......................4 1.2 Control panel ......................5 1.3 Turning ON and OFF ....................6 1.4 Adjustments ......................7 1.5 Maintenance ......................8 1.6 Faults ........................8 2. INSTALLATION ..................9 2.1 General Instructions ....................9 2.2 Boiler location .......................10 2.3 Boiler water connections ..................11... -
Page 4: Operating Instructions
1.1 Introduction Dear Customer, Thank you for choosing the OPTIMAX HE 31 S, a FERROLI wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. OPTIMAX HE 31 S is a high-efficiency condensing pre-mix appliance for heating with extremely low emissions, running on natural gas or LPG. -
Page 5: Control Panel
OPTIMAX HE 31 S 1.2 Control panel fig. 1 1 = Domestic Hot Water temperature setpoint decreasing push button (not used) 2 = Domestic Hot Water temperature setpoint increasing push button (not used) 3 = Central Heating water temperature setpoint decreasing push button... -
Page 6: Turning On And Off
OPTIMAX HE 31 S 1.3 Turning ON and OFF Without main power supply fig. 3 - Boiler without main power supply To avoid damage caused by freezing during long shutdowns in winter, it is advisable to drain all water from the system. -
Page 7: Adjustments
OPTIMAX HE 31 S When the boiler is turned off with this key, the p.c.b is still powered, heating operation is disabled and the display is off however the frost protection will still be active. To totally isolate close the gas cock ahead of the boiler and disconnect electrical power. -
Page 8: Maintenance
Service Department. Low system pressure Fill the ‘system to 1-1.5 bar. Before calling a Ferroli service engineer, check that the problem is not due to there being no gas or electricity, or low system pressure. Cod. 3540F441 - 03/2007 (Rev. 01) -
Page 9: Installation
OPTIMAX HE 31 S 2. INSTALLATION 2.1 General Instructions This device must only be used for the purpose for which it is specially designed. This unit is designed to heat water to a temperature below boiling point and must be connected to a heat- ing system and/or a water supply system for domestic use, compatible with its performance, characteristics and its heating capacity. -
Page 10: Boiler Location
OPTIMAX HE 31 S 2.2 Boiler location The unit’s combustion chamber is sealed off from the installation room and therefore requi- res no compartment ventilation. The installation room must be sufficiently well ventilated to prevent any dangerous condi- tions from forming in the event of even slight gas leakage. -
Page 11: Boiler Water Connections
OPTIMAX HE 31 S 2.3 Boiler water connections The heating capacity of the unit should be previously established by calculating the building’s heat requi- rement according to current regulations. For good operation and long life of the boiler, the plumbing system must be well proportioned and always complete with all those accessories that guarantee regular operation and running, room thermostat, trv’s etc. - Page 12 OPTIMAX HE 31 S The isolation valve kit shown in Fig. 11 is supplied as standard. fig. 11 Make Up Water Provision must be made for replacing water lost from the sealed system. Reference should be made to BS6798, for methods of filling and making up sealed systems. There must be no direct connection between the boiler's central heating system and the mains water supply.
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Page 13: Connection To The Gas System
OPTIMAX HE 31 S Water treatment If treatment is used ferroli limited recommended only the use of Fernox or Sentinel water treatment products, which must be used in accordance with the manufactures instructions. for further information contact: Fernox Manufacturing Co. LTD. -
Page 14: Room Thermostat
OPTIMAX HE 31 S The user must never change the unit’s power cable. If the cable gets damaged, switch off the unit and have it changed only by professionally qualified personnel. If changing the electric power cable, use only “HAR H05 VV-F” 3x0.75 mm cable with a maximum outside diameter of 8 mm. - Page 15 OPTIMAX HE 31 S Central heating Demand The heat demand can be controlled by the room thermostat (terminal 5-6) or by a switch line 230 V (terminal 5). Standard Systems For a general pipe layout and wiring diagram on the “S” and “Y” plan systems please see fig.
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Page 16: Flue System
The current standards and local regulations must be observed. It should be noted that only Ferroli flue system and accessories should be used on this appliance, as per BS 5440 2000 and C.E. test certification. -
Page 17: Horizontal Flue Installation
OPTIMAX HE 31 S Connection with concentric flue system The unit can be connected to a concentric air/flue duct with a Horizontal or Vertical outlet as shown on the following drawings. Numerous accessories are available on request to meet the various installation requirements. - Page 18 OPTIMAX HE 31 S Vertical Outlet The total length in equivalent metres of the concentric flue must not exceed the maximum lengths stated in the following table, note that each bend gives rise to the stated reduction. For example, a duct = 60/100 composed of 1 bend of 90°...
- Page 19 3. Check that the total calculated loss is less than or equal to 55 equivalent metres, i.e. the maximum permissible for this model of boiler. For complete flue options please contact ferroli or check our comprehensive flue manual. fig. 19...
- Page 20 OPTIMAX HE 31 S Table of flue and accessory Ø80 The stated loss values refer to genuine Ferroli flue accessories. Terminal Position fig. 20 Cod. 3540F441 - 03/2007 (Rev. 01)
- Page 21 OPTIMAX HE 31 S Cod. 3540F441 - 03/2007 (Rev. 01)
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Page 22: Condensate Outlet Connection
Connection to collective flues or single flues with natural draught If you are then going to connect the OPTIMAX HE 31 S boiler to a collective flue or a single flue with natural draught, the flue must be expressly designed by professionally qualified technical personnel in conformity with the standards and rules in force. -
Page 23: Condensate Discharge
OPTIMAX HE 31 S Condensate discharge Where possible the condensate should discharge into an internal soil pipe or waste system. The minimum pipe diameter required is 22 mm, a trap has already been fitted to the appliance with a flexible tail to facilitate the connection to the condensate discharge pipe. -
Page 24: Service And Maintenance
OPTIMAX HE 31 S 3. SERVICE AND MAINTENANCE 3.1 Adjustments All adjustment and conversion operations must be carried out by Qualified Personnel such as ferroli Technical Service. FERROLI declines any responsibility for damage or physical injury caused by unqualified and unauthorized persons tampering with the device. -
Page 25: System Start-Up
OPTIMAX HE 31 S 3.2 System start-up Commissioning must be performed by Qualified Personnel. Checks to be made at first ignition, and after all maintenance operations that involved discon- necting from the systems or an intervention of a safety device. -
Page 26: Maintenance
OPTIMAX HE 31 S 3.3 Maintenance The following operations are strictly reserved for Qualified Personnel, such as corgi registered engineers or Ferroli engineers. Seasonal inspection of the boiler and flue It is advisable to carry out the following checks at least once a year: •... -
Page 27: Combustion Analysis
OPTIMAX HE 31 S Opening the casing To open the boiler casing, you need to follow the sequence given below and the instructions of fig. 24. 1 Using a screwdriver, fully unscrew and remove the 2 screws “A ” 2 Open by lowering the panel “B ”... -
Page 28: Troubleshooting
OPTIMAX HE 31 S 3.4 Troubleshooting Fault Diagnosis In the event of operating problems or trouble, the display will flash and a fault identification code appears. There are faults that in order to restore operation the RESET button must be pressed (ref.6 - fig. 1); or if the boiler fails to start, it will be necessary to repair the fault (code nos. - Page 29 OPTIMAX HE 31 S Fault Possible cause Cure Sensor damaged or wiring shorted Check the wiring or change the sensor Flue sensor fault Check the wiring or change the Sensor damaged or wiring broken sensor Sensor damaged or short circuited...
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Page 30: Technical Characteristics And Data
OPTIMAX HE 31 S 4. TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections fig. 26 System flow (22 mm with isolation valve fitted) Pressure Relief Valve Gas inlet (22 mm with isolation valve fitted) Condense outlet System return - 22 mm with isolation valve fitted (c/w filter) Cod. -
Page 31: General View And Main Components
OPTIMAX HE 31 S 4.2 General view and main components Room sealed compartment Gas inlet CH flow CH return Heating safety valve Premix fan assembly Combustion compartment Main injector Main burner Flue Collar Pump Automatic air vent Gas valve Expansion vessel... -
Page 32: Hydraulic Diagram
OPTIMAX HE 31 S 4.3 Hydraulic diagram fig. 28 Gas inlet Condensate outlet pipe CH flow Heat exchanger CH return Return sensor Pressure Relief valve Siphon Premix fan assembly Fan Venturi Pump Automatic by-pass Automatic air vent System pressure sensor... -
Page 33: Technical Data Table
OPTIMAX HE 31 S 4.4 Technical data table Cod. 3540F441 - 03/2007 (Rev. 01) -
Page 34: Diagrams
OPTIMAX HE 31 S 4.5 Diagrams Head available for the system H [m H Q [l/h] 1.000 1.500 2.000 fig. 29 1 - 2 - 3 = Pump selector positions A = Boiler losses of head Cod. 3540F441 - 03/2007 (Rev. 01) -
Page 35: Wiring Diagram
OPTIMAX HE 31 S 4.6 Wiring diagram fig. 30 104 Fuse 186 Return temperature sensor Central heating pump 191 Exhaust temperature sensor Combination gas valve 202 Transformer 230V-24V Time clock (optional) 203 Supply lead and 3 Amp plug Spark Electrode... -
Page 37: Benchmark
BENCHMARK 2 6 7 BENCHMARK No. Please add the first 4 digits of the Boiler serial No to complete the BENCHMARK No. GAS BOILER COMMISSIONING CHECKLIST C O L L E C T I V E M A R K BOILER SERIAL No. -
Page 38: Service Interval Record
SIGNATURE SERVICE 9 SERVICE 10 DATE DATE ENGINEER NAME ENGINEER NAME COMPANY NAME COMPANY NAME TEL No. TEL No. CORGI ID CARD SERIAL No. CORGI ID CARD SERIAL No. COMMENTS COMMENTS SIGNATURE SIGNATURE FERROLI TECHNICAL HELPLINE - 08707 282 885... - Page 39 Should you require any assistance during the installation call our Technical Service Helpline on 08707 282 885 option 1 Should you require a service engineer to visit call our service centre on 08707 282 885 option 2 (For U.K. and Northern Ireland) For EIRE only call HEATOVENT on 014508166 Phone numbers:...
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