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Summary of Contents for Ferroli OPTIMAX HE PLUS 31 C
- Page 1 OPTIMAX HE PLUS 31 C wall-mounted gas fired, pre-mix condensing combination boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE G.C. n° 47-267-44...
- 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 PLUS 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... -
Page 4: Operating Instructions
1.1 Introduction Dear Customer, Thank you for choosing the OPTIMAX HE PLUS 31 C, a FERROLI wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. OPTIMAX HE PLUS 31 C is a high-efficiency condensing pre-mix appliance for heating and hot water production with extremely low emissions, running on natural gas or LPG. -
Page 5: Control Panel
OPTIMAX HE PLUS 31 C 1.2 Control panel comfort reset 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... -
Page 6: Turning On And Off
OPTIMAX HE PLUS 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 PLUS 31 C are calling for heat. Turning off Press the (part. 7 - fig. 1) for 5 seconds. comfort reset fig. 7 - 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 PLUS 31 C 1.4 Adjustments Heating temperature setting To set the system flow temperature, use the CH push buttons (Part. 3 and 4 – fig. 1). It can be varied from a minimum of 20°C to a maximum of 90°C. -
Page 9: Outside Temperature Compensation
OPTIMAX HE PLUS 31 C Economy/Comfort selection The unit is equipped with a special internal device that ensures a high hot-water delivery speed and excellent user comfort. When comfort mode is active the water in the boiler is maintained at a pre-de- termined temperature, which means that hot water is available at the boiler outlet as soon as a tap is opened, ie with no waiting. - Page 10 OPTIMAX HE PLUS 31 C reset To exit the OTC mode, press (Part. 6 – fig. 1) for 5 seconds. Outside temperature fig. 13 Outside temperature Outside temperature fig. 14 Cod. 3540I882 - 06/2009 (Rev. 00)
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Page 11: Maintenance
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. Cod. 3540I882 - 06/2009 (Rev. 00) -
Page 12: Installation
OPTIMAX HE PLUS 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 PLUS 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 PLUS 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 PLUS 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...
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Page 16: Connection To The Gas System
OPTIMAX HE PLUS 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 PLUS 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 OPTIMAX HE PLUS 31 C Connection with coaxial pipes fig. 22 - Examples of connection with coaxial pipes ( = Air / = Fumes) For coaxial connection, fit the unit with one of the following starting accessories. For the wall hole dimensions, refer to sec.
- Page 20 OPTIMAX HE PLUS 31 C Connection with separate pipes fig. 24 - Examples of connection with separate pipes ( = Air / = Fumes) For connection of the separate ducts, fit the unit with the following starting accessory: Ø 81 Ø...
- Page 21 OPTIMAX HE PLUS 31 C Table. 4 - Accessories Losses in m Fume exhaust inlet Vertical Horizontal Ø 80 PIPE 1 m M/F 1KWMA83W BEND 45° M/F 1KWMA65W 90° M/F 1KWMA01W PIPE SECTION with test point 1KWMA70W TERMINAL air, wall...
- Page 22 Condensing Terminal Positions: If the flue is to be terminated at low level, then the potential effect of the plume must be considered. Plume management kits are available from Ferroli. The plume should not be directed: across a frequently used access route...
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Page 23: Condensate Outlet Connection
Connection to collective flues or single flues with natural draught If you are then going to connect the OPTIMAX HE PLUS 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 24: Condensate Discharge
OPTIMAX HE PLUS 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 25: Service And Maintenance
OPTIMAX HE PLUS 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 26: System Start-Up
OPTIMAX HE PLUS 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. -
Page 27: Maintenance
OPTIMAX HE PLUS 31 C 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 28: Combustion Analysis
OPTIMAX HE PLUS 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 ”... -
Page 29: Troubleshooting
OPTIMAX HE PLUS 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 30 OPTIMAX HE PLUS 31 C Fault Possible cause Cure Sensor damaged DHW sensor fault Wiring shorted Check the wiring or replace the sensor Wiring disconnected Sensor damaged or wiring shorted Check the wiring or change the sensor Flue sensor fault...
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Page 31: Technical Characteristics And Data
OPTIMAX HE PLUS 31 C 4. TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections comfort reset fig. 31 54 51 System flow (22 mm with isolation valve fitted) System return - 22 mm with isolation valve DHW outlet (15 mm) -
Page 32: General View And Main Components
OPTIMAX HE PLUS 31 C 4.2 General view and main components 8 44 9 136 fig. 32 Room sealed compartment Expansion vessel Gas inlet Ionisation electrode DHW outlet Motorised Diverting valve Cold main inlet Water pressure switch CH flow Flow meter CH return C.h. -
Page 33: Hydraulic Diagram
OPTIMAX HE PLUS 31 C 4.3 Hydraulic diagram fig. 33 Gas inlet Motorised Diverting valve DHW outlet Water pressure switch Cold main inlet Flow meter CH flow Condensate outlet pipe CH return Heat exchanger Heating Pressure Relief safety valve Return temperature sensor... -
Page 34: Technical Data Table
Hot water circuit connections (with isolation valve fitted) Ø15 Maximum length of separate flues D=80* *Measurement given in equivalent linear metres – cfr FERROLI calculation system) Electrical power supply Max electrical power absorbed Electric power drawn by the circulator (Speed I-II-III) -
Page 35: Diagrams
OPTIMAX HE PLUS 31 C 4.5 Diagrams Head available for the system H [m H Q [l/h] 1.000 1.500 2.000 fig. 34 1 - 2 - 3 = Pump selector positions (In order to obtain maximum hot water output the pump must be left in position 3). -
Page 36: Wiring Diagram
OPTIMAX HE PLUS 31 C 4.6 Wiring diagram fig. 35 104 Fuse 114 Water pressure switch Central heating pump 136 Flowmeter D.h.w. temperature sensor 138 Outside temperature sensor Combination gas valve 139 Room unit Time clock (optional) 186 Return temperature sensor... -
Page 38: Benchmark
2 6 7 BENCHMARK No. Benchmark 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 39: 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 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 Phone numbers: Installer Service Engineer BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS.
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