Related Manuals for Ferroli Optimax HE 31 C
Summary of Contents for Ferroli Optimax HE 31 C
- Page 1 OPTIMAX HE 31 C wall-mounted gas fired, pre-mix condensing combination boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE FOR THE UNITED KINGDOM AND EIRE G.C. n° 47-267-42...
- 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 C 1. OPERATING INSTRUCTIONS ..............4 1.1 Introduction ......................4 1.2 Control panel ......................5 1.3 Turning ON and OFF ....................6 1.4 Adjustments ......................8 1.5 Maintenance ......................11 1.6 Faults ........................11 2. INSTALLATION ..................12 2.1 General Instructions ....................12 2.2 Boiler location .......................13 2.3 Boiler water connections ..................14 2.4 Connection to the gas system ................16 2.5 Electrical Connections ..................16... -
Page 4: Operating Instructions
1.1 Introduction Dear Customer, Thank you for choosing the OPTIMAX HE 31 C, a FERROLI wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. OPTIMAX HE 31 C is a high-efficiency condensing pre-mix appliance for heating and hot water pro- duction with extremely low emissions, running on natural gas or LPG. -
Page 5: Control Panel
OPTIMAX HE 31 C 1.2 Control panel fig. 1 1 = Domestic Hot Water temperature setpoint decreasing push button 2 = Domestic Hot Water temperature setpoint increasing push button 3 = Central Heating water temperature setpoint decreasing push button 4 = Central Heating water temperature setpoint increasing push button 5 = Display LCD 6 = Reset / Summer-Winter / OTC push button 7 = Economy-Comfort / On-Off push button... -
Page 6: Turning On And Off
OPTIMAX HE 31 C Domestic Hot Water mode The Domestic Hot Water heat demand (generated by the DHW flow sensor or due to a Comfort request) is indicated by the flashing of the Hot Water symbol under the tap (part. 8 and 9 – fig. 1). The display indicates the actual Domestic Hot Water temperature (part. - Page 7 OPTIMAX HE 31 C Turning off Press the (part. 7 - fig. 1) for 5 seconds. fig. 6 - Turning off 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.
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Page 8: Adjustments
OPTIMAX HE 31 C 1.4 Adjustments Summer/Winter selection To select Summer, press the (Part. 6 – fig. 1) for 1 second when the boiler is in Winter mode. fig. 8 The display will show the Summer icon (Part 10 – fig. 1): the boiler can still produce domestic hot water whenever there is a demand. -
Page 9: Outside Temperature Compensation
OPTIMAX HE 31 C Room temperature adjustment (using a room thermostat ) Using the room thermostat, set the temperature desired. Controlled by the room thermostat, the boiler lights and heats the system water to the system delivery setpoint temperature. The burner shuts down when the desired temperature in the room is reached. - Page 10 OPTIMAX HE 31 C By pressing the CH push buttons (Part. 3 e 4 – fig. 1), the display shows OF flashing (fig. 12); to set Offset, use the DHW push buttons (Part. 1 and 2 – fig. 1). It can be varied from 20 to 40, in accordance with the chart (fig.
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Page 11: Maintenance
In case of repeated shutdowns, contact the Ferroli Service centre. 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. -
Page 12: Installation
OPTIMAX HE 31 C 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 hea- ting system and/or a water supply system for domestic use, compatible with its performance, characteristics and its heating capacity. -
Page 13: Boiler Location
OPTIMAX HE 31 C 2.2 Boiler location The unit’s combustion circuit is sealed off from the installation room and therefore requires 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 14: Boiler Water Connections
OPTIMAX HE 31 C 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 15 OPTIMAX HE 31 C The isolation valves and filling kit shown in Fig. 17 is supplied as standard. 1 - The kit consist of the following items shown in fig 17. Cold water inlet valve Double check valve Blanking cap Removable connection Blanking plug Isolation valve...
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Page 16: Connection To The Gas System
OPTIMAX HE 31 C Water treatment If treatment is used ferroli limited recommanded only the use of Fernox or Sentinel water treatment products, which must be used in accordance with the manufacturers instructions. for further information contact: Fernox Manufacturing Co. LTD. - Page 17 OPTIMAX HE 31 C 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.
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Page 18: 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 19: Horizontal Flue Installation
OPTIMAX HE 31 C 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 20 OPTIMAX HE 31 C 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 21 3. Check that the total calculated loss is less than or equal to 75 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. 24...
- Page 22 OPTIMAX HE 31 C Table of flue and accessory Ø80 The stated loss values refer to genuine Ferroli flue accessories. Terminal Position fig. 25...
- Page 23 OPTIMAX HE 31 C...
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Page 24: Condensate Outlet Connection
OPTIMAX HE 31 C Connection to collective flues or single flues with natural draught If you are then going to connect the OPTIMAX HE 31 C 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 25: Condensate Discharge
OPTIMAX HE 31 C 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 26: Service And Maintenance
OPTIMAX HE 31 C 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 27: System Start-Up
OPTIMAX HE 31 C 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. Before lighting the boiler: •... -
Page 28: Maintenance
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 29: Combustion Analysis
OPTIMAX HE 31 C Opening the casing To open the boiler casing, you need to follow the sequence given below and the instructions of fig. 29. 1 Using a screwdriver, fully unscrew and remove the 2 screws “A ” 2 Open by lowering the panel “B ” 3 Lift and take off the casing “C ”... -
Page 30: Troubleshooting
OPTIMAX HE 31 C 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 31 OPTIMAX HE 31 C Fault Possible cause Cure Flue sensor fault Sensor damaged or wiring shorted Check the wiring or change the sensor Sensor damaged or wiring broken Check the wiring or change the sensor Flow sensor fault Sensor damaged or short circuited Check the wiring or change the sensor Sensor damaged or wiring broken Check the wiring or change the sensor...
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Page 32: Technical Characteristics And Data
OPTIMAX HE 31 C 4. TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections fig. 31 System flow (22 mm with isolation valve fitted) System return - 22 mm with isolation valve DHW outlet (15 mm) fitted (c/w filter) Gas inlet (22 mm with isolation valve fitted) Pressure Relief Valve Cold main inlet (15 mm with isolation valve fitted) Condense outlet... -
Page 33: General View And Main Components
OPTIMAX HE 31 C 4.2 General view and main components Room sealed compartment Gas inlet DHW outlet Cold main inlet CH flow CH return Heating safety valve Premix fan assembly Combustion-compartment Main injector Main burner Internal flue collar Heating pump Automatic air vent Cold water inlet filter Cold water flow limiter... -
Page 34: Hydraulic Diagram
OPTIMAX HE 31 C 4.3 Hydraulic diagram fig. 33 Gas inlet Motorised Diverting valve DHW outlet Flow meter Cold main inlet Condensate outlet pipe CH flow Heat exchanger CH return Return temperature sensor Heating Pressure Relief safety valve Siphon Premix fan assembly Domestic plate Heat exchanger Heating pump Fan Venturi... -
Page 35: Technical Data Table
OPTIMAX HE 31 C 4.4 Technical data table... -
Page 36: Diagrams
OPTIMAX HE 31 C 4.5 Diagrams Head available for the system fig. 34 1 - 2 - 3 = Pump selector positions (In order to obtain maximum hot water output the pump must be left in position 3). A = Boiler losses of head... -
Page 37: Wiring Diagram
OPTIMAX HE 31 C 4.6 Wiring diagram fig. 35 136 Flowmeter 138 Outside temperature sensor Central heating pump 139 Room unit Combination gas valve 186 Return temperature sensor Time clock (optional) 191 Flue temperature sensor Room thermostat 202 Transformer 230V-24V Spark Electrode 203 230v A/C switched supply Ionisation electrode... -
Page 38: Benchmark
BENCHMARK 2 6 7 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... -
Page 39: Service Interval Record
SERVICE INTERVAL RECORD Service Provider. SERVICE 1 SERVICE 2 SERVICE 3 SERVICE 4 SERVICE 6 SERVICE 5 SERVICE 7 SERVICE 8 SERVICE 9 SERVICE 10 FERROLI TECHNICAL HELPLINE - 08707 282 885... - Page 40 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:...