Ferroli OPTIMAX HE 38 C Instructions For Use, Installation And Maintenance
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Ferroli OPTIMAX HE 38 C Instructions For Use, Installation And Maintenance

Ferroli OPTIMAX HE 38 C Instructions For Use, Installation And Maintenance

Wall-mounted gas fired, pre-mix condensing combination boiler
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OPTIMAX HE 38 C
wall-mounted gas fired,
pre-mix
condensing combination boiler
INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE
FOR THE UNITED KINGDON AND EIRE
GC N° 47-267-43

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  • Page 1 OPTIMAX HE 38 C wall-mounted gas fired, pre-mix condensing combination boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE FOR THE UNITED KINGDON AND EIRE GC N° 47-267-43...
  • 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.

  • Page 3: Table Of Contents

    OPTIMAX HE 38 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 38 C, a FERROLI wall-mounted boiler of the latest generation, featuring advanced design and cutting-edge technology. OPTIMAX HE 38 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 38 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 38 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 38 C Turning off Press the (part. 7 - fig. 1) for 5 seconds. comfort reset 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.

  • Page 8: Adjustments

    OPTIMAX HE 38 C 1.4 Adjustments Summer/Winter selection reset To select Summer, press the (Part. 6 – fig. 1) for 1 seconds when the boiler is in Winter mode. comfort reset 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 OPTIMAX HE 38 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 38 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.

  • Page 11: Maintenance

    In case of repeated shutdowns, contact the Ferroli Service. 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 38 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 38 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 38 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 38 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...

  • Page 16: Connection To The Gas System

    OPTIMAX HE 38 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 38 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.

  • 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 38 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 38 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 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. 1KWMA83W Table 3 Equivalent Ref.
  • Page 22 1KWMA83W • 1,00 m 1KWMA85A Bend 45° Ø 80 mm male - female Vertical flue terminal 1KWMA65W 1KWMA84U Bend 90° Ø 80 mm male - female The stated loss values refer to genuine Ferroli flue accessories. 1KWMA01W Terminal Position D, E fig. 25...
  • Page 23 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...

  • Page 24: Condensate Outlet Connection

    Connection to collective flues or single flues with natural draught If you are then going to connect the OPTIMAX HE 38 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 OPTIMAX HE 38 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 38 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 38 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 28: Maintenance

    OPTIMAX HE 38 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 29 OPTIMAX HE 38 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 ”...

  • Page 30: Troubleshooting

    OPTIMAX HE 38 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 38 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...

  • Page 32: Technical Characteristics And Data

    OPTIMAX HE 38 C 4. TECHNICAL CHARACTERISTICS AND DATA 4.1 Dimensions and connections Ø118 239,5 106,5 94,5 51 54 73,5 comfort reset Ø3/4" Ø1/2" Ø1/2" Ø1/2" Ø3/4" 94,5 51 54 73,5 fig. 31 System flow (22 mm with isolation valve fitted)

  • Page 33: General View And Main Components

    OPTIMAX HE 38 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...

  • Page 34: Hydraulic Diagram

    OPTIMAX HE 38 C 4.3 Hydraulic diagram fig. 33 Gas inlet Ionisation electrode DHW outlet Motorised Diverting valve Cold main inlet Flow meter CH flow Condensate outlet pipe CH return Heat exchanger Heating safety valve Return temperature sensor Premix fan assembly...

  • Page 35: 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 36: Diagrams

    OPTIMAX HE 38 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 37: Wiring Diagram

    OPTIMAX HE 38 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...

  • Page 38: 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 39 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 (For U.K. and Northern Ireland) For EIRE only call HEATOVENT on 014508166 Phone numbers:...

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47-267-43

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