Hermann Supermicra 30 SE Instruction Manual
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Hermann Supermicra 30 SE Instruction Manual

Hermann Supermicra 30 SE Instruction Manual

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INSTRUCTIONS MANUAL
FOR THE GAS BOILER
Supermicra
23 E – 28 E
24 SE – 30 SE
ATTENTION
(for SUPERMICRA 24/30 SE)
FOR DIAPHRAGM POSITIONING, CAREFULLY READ THE FLUE SYSTEMS
INSTRUCTIONS IN THE "INSTALLATION" CHAPTER.
IMPORTANT
THE FIRST IGNITION OF THE BOILER MUST BE EXECUTED BY AN
AUTHORIZED TECHNICIAN ACCORDING TO THE LAW 46/90.
Assigning all the operations for the first ignition to a Hermann Authorized Service
Center the particular and exclusive Hermann Conventional Warranty is activated.
For further information consult the coupon which you can find in the boiler's
documents envelope.
Assigning all the operations for the first ignition to a Hermann Authorized Service Center the particular and exclusive Hermann Conven-
tional Warranty is activated. For further information consult the coupon which you can find in the boiler's documents envelope.

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Summary of Contents for Hermann Supermicra 30 SE

  • Page 1 Assigning all the operations for the first ignition to a Hermann Authorized Service Center the particular and exclusive Hermann Conven- tional Warranty is activated. For further information consult the coupon which you can find in the boiler’s documents envelope.

  • Page 2: Table Of Contents

    MANUFACTURER DECLARATION Hermann boilers have obtained the CE certification (DM dtd. April 2 1998, Law 10/91, art. 32) and meet minimum efficiency requirements, both at normal and 30% load, provided by DPR 412/93 (according to Law 10/91, art. 4, sub-section 4). They are in conformity with following Directives: Directive on appliances burning gaseous fuels (90/396), Directive on electro-magnetic compatibility (CE 89/ 336), Efficiency Directive (CE 92/42), Low Voltage Directive (CE 73/23), and relevant modifications.

  • Page 3: Introduction

    — In case of fault and/or bad operation of the appliance, disconnect it immediately and do not try to repair it by yourselves. Boiler servicing and repair must be carried out exclusively by [HERMANN Authorized Servicing Centres] [qualified technicians], which will use original spare parts. Strictly observe the above requirement, avoiding any risk of compromising the appliance safety.

  • Page 4: Technical Data

    ECHNICAL DATA i t r c i f ° n c i f c i f ÷ ° ÷ ÷ ÷ ÷ ° ° 5 ° 0 o l f y t i c t i v i t ÷ °...
  • Page 5 DIMENSIONS Supermicra E - SE Heating return (3/4”) Heating flow (3/4”) Hot water outlet (1/2”) Cold water inlet (1/2”) TA / L Zone for electrical power supply and room thermostat connections Gas (3/4”) TA / L 52 52 88 39 116.5 Supermicra 24-30 SE models only: l t u...
  • Page 6 AVAILABLE PUMP CAPACITY Model SUPERMICRA 23 E / 24 SE with selector in speed position I, II, III (automatic by-pass, not disconnectable) 1000 1200 1400 Water flow l/h AVAILABLE PUMP CAPACITY MOD. SUPERMICRA 28 E / 30 SE with selector in speed position I, II, III (automatic by-pass, not disconnectable)
  • Page 7 BOILER SCHEMATIC SUPERMICRA E WARNING: This scheme is made for in- formation only. To make boiler hydrau- lic connection either use fixing jig or the drawing inserted in the section “Instal- lation” or the “Dimensions” drawing. Drain valve Heating thermometer + gauge By-pass Pump Heating system safety valve 3 bar...

  • Page 8: Installation

    NSTALLATION Safety laws and rules referred to technicians assigned to boilers installation Place here all necessary advices according to national rules about WORK SAFETY Law number XXXX “Actuation of 89/391/CEE; 89/655/CEE, 90/296/CEE, 90/934/CEE, 90/679/CEE, (work safety)” Law number XXXX “Actuation of 89/686/CEE (21 Dec 1989)” Other Law number XXXX (if any) “Other Law title and/or brief description”...

  • Page 9: Boiler Location

    Boiler location INSTALLATION ROOM When having an heat ouput lower than 35 kw (about 30000 Kcal/h), particular features for the installation room are not required. Shortly, all installation rules assuring a safe and regular gas boiler operation, must be strictly respected. Place here all necessary advices according to national rules about: - Installation room requirements...

  • Page 10: Boiler Hanging

    Boiler hanging REMARK: A re-utilizable metal jig can be ordered separately, so as to facilitate connections and fixing points positioning (when the standard connection kit is used). If the standard connection kit is not used, refer to the “Dimensions” drawing (Technical Data section) for the position of the connections directly on the boiler.

  • Page 11: Replacement Of "Micra" Boiler

    Replacement of “Micra” boiler SUPERMICRA Boiler has been designed to easily replace MICRA Boiler keeping, according to the different cases, the position of the hydraulic connections and/or of the upper edge of the boiler. NOTE: If a MICRA 28 E/SE is replaced by a SUPERMICRA it is necessary to move the plug or the right hook of 50 mm leftwards (verify and check the measures with the jig or with the relative figure).

  • Page 12: Hydraulic Connections

    — Connect the safety evacuation ducts of the boiler to an evacuation funnel. If safety valves are not connected to an evacuation device, their intervention could flood the room. Hermann can- not be held responsible for any damage arising from that situation.

  • Page 13: System Filling

    [an HERMANN Servicing Centre] [a qualified technician] for gas conversion;...

  • Page 14: Electrical Connections

    Remark: HERMANN Ltd. declines any responsibility for damages to persons, animals or things caused by the non-connection of the boiler earthing and by failure to comply with the rules.

  • Page 15: Chimney Connections Supermicra E (Natural Draught)

    Chimney connections SUPERMICRA E (natural draught) Place here all necessary advices according to national rules about CHIMNEY CONNECTIONS of OPEN chamber boilers These diagrams are to explain the most important ITALIAN laws concerning chimney connections (for EXEMPLE purpose only) 2500 mm MAX PRODUCTS TEST POINT FLUE 2 x d...

  • Page 16: Chimney Connections Supermicra Se (Forced Draught)

    Chimney connections SUPERMICRA SE (forced draught) NOTE ON FLUE INSTALLATION When fitting air inlet and flue outlet horizontal ducts, it is necessary to make sure there is a slope of 2÷5% downwards from the boiler to the out- side (see diagram). This is essential to guaran- 2% ÷...
  • Page 17 In case of evacuation to wall, the positions indicated in the following drawing and table must be respected: a i l c i t l a t o i t d l i d l i o l f i t r y l l y l l h t i...

  • Page 18: High Capacity Fan Supermicra 24 Se

    High capacity fan SUPERMICRA 24 SE For SUPERMICRA 24 SE (forced draught) it is possible to install, on request, an “high capacity fan”, allowing an higher length of separate flue systems (see table): u l f e l t t e l Ø...

  • Page 19: Flue Systems Supermicra Se

    Flue systems SUPERMICRA SE AIR INLET AND PRODUCTS OUTLET THROUGH SEPARATE PIPES Attention: see table and, if required, install the dia- phragm “D” as indicated in the figure besides (any additional 90° bend = 0.5 linear meters, 45° bend = 0.25 meters).
  • Page 20 Flue sistems SUPERMICRA SE AIR INLET AND PRODUCTS OUTLET THROUGH COAXIAL SYSTEM Attention: see table and, if required, install the dia- phragm “D” as indicated in the figure besides (any additional 90° bend = 1 linear meter, 45° bend = 0.5 meters).

  • Page 21: Regulation And Servicing

    ATTENTION: the operations described below must be carried out only by qualified personnel [authorized by HERMANN]. When regulation/measuring is over, remember to tighten pressure tapping point screws and ALWAYS check for gas leaks! Before boiler ignition, verify that pump is not blocked due to its inactivity: unscrew the plug located in the middle of the cap to gain access to the rotor shaft, and turn it manually using a screwdriver or another suitable tool.

  • Page 22: Gas Valve Pressure Regulation (Max-Min)

    GAS VALVE Gas valve pressure regulation (MAX-MIN) — Loosen (2-3 turns) the screw of pressure tapping point for gas outlet [1] of the gas valve and insert the manometer sensor. In the “SE” models unthread from the “Vent” [3] the silicon tube coming from the sealed chamber;...

  • Page 23: Slow Opening Regulation

    Slow opening regulation To adjust the slow opening, proceed as follows: — switch off the boiler; — release the screws [1] (see figure) and remove the back closing of the control panel; REMARK: you will have 8 seconds for the regulation of the slow opening pressure, and after these 8 seconds the pressure of the burner increases to the highest value.
  • Page 24 BURNER PRESSURES for SUPERMICRA 23 E BURNER PRESSURES for SUPERMICRA 28 E Regulation and servicing...
  • Page 25 BURNER PRESSURES for SUPERMICRA 24 SE BURNER PRESSURES for SUPERMICRA 30 SE Regulation and servicing...

  • Page 26: Changing Gas Type

    Changing Gas type ATTENTION: the operations described below must be carried out only by qualified personnel [authorized from HERMANN Ltd]. For gas conversion, use the nozzles supplied by boiler manufacturer only. Using LPG, it is absolutely necessary to install a pressure reducer upstream the boiler.

  • Page 27: Combustion Check

    Combustion check The boiler has a “CHIMNEYSWEEPER” function which draws the ignition of the burner to the highest power (not modulated) without working on the room thermostat or on the flow of hot water. — Arrange the instruments for the combustion check; —...

  • Page 28: Electronical Regulation

    Electronical regulation POSSIBLE REGULATIONS ON THE MAIN P.C.B. The SUPERMICRA models are equipped with a Microprocessor P.C.B., with an array of 6 microswitches (SW3 / 1÷6) which allow to make personalizing actions for the boiler’s functioning. The firm arrangements are underlined. Remark: on some cases there may be 8 microswithes instead of 6 (SW3 / 1÷8).

  • Page 29: Warnings For Servicing

    — Clean casing with soapy water only. Do not clean casing, other painted or plastic surfaces with thinner. — In any case of parts replacement, it is mandatory to use HERMANN original spare parts. HERMANN declines any responsibility in case of non-original spare parts utilization.

  • Page 30: Components Of The Gas Boiler Supermicra 23 E - 28 E

    Components of the gas boiler SUPERMICRA 23 E - 28 E Flue thermostat 10 Drain valve Safety thermostat for 11 Sensor for temperature control max. water temperature 12 Burner Expansion vessel 13 Flame sense electrode Ignition electrode 14 Primary heat exchanger...

  • Page 31: Components Of The Gas Boiler Supermicra 24 Se - 30 Se

    Components of the gas boiler SUPERMICRA 24 SE - 30 SE Flue pressure switch 10 Drain valve Safety thermostat for 11 Sensor for temperature control max. water temperature 12 Burner Expansion vessel 13 Flame sense electrode Ignition electrode 14 Primary heat exchanger Domestic exchanger 15 Automatic venting device Gas valve...

  • Page 32: Electric Diagram For Supermicra 23 E - 28 E

    Electric diagram for SUPERMICRA 23 E - 28 E Colours abbreviations: Black Brown Blue EVZ1/2/3… Electrovalve Green zone 1/2/3… GNYE Green-Yellow AUX1/2/3… Auxiliary Grey contact for EVZ1/2/3… Orange TAZ1/2/3… Room thermostat Violet for zone 1/2/3… White Pump PSA Low water pressure switch...

  • Page 33: Electric Diagram For Supermicra 24 Se - 30 Se

    Electric diagram for SUPERMICRA 24 SE - 30 SE Colours abbreviations: Black EVZ1/2/3… Electrovalve Brown zone 1/2/3… Blue AUX1/2/3… Auxiliary Green contact GNYE Green-Yellow for EVZ1/2/3… Grey TAZ1/2/3… Room Orange thermostat for zone 1/2/3… Violet White Pump Fan motor Ignition and flame control unit PSA Low water pressure switch (contact NO closed = in pressure) Ignition electrode...

  • Page 34: User Instructions

    Warnings for first starting up The first starting up must be done by a professionally qualified staff (for example the SERVICE CENTERS authorized by HERMANN). Gas conversion from a specific gas (natural gas or LPG) to another gas, can be made also when the gas boiler is already installed, but only by a qualified technician.

  • Page 35: Warnings

    APPLIANCE BOOKLET OR CENTRAL PLANT BOOKLET All appliances, even those installed before August 1 , 1994, must have an appliance booklet (for outputs less or equal 35 kW) or a central plant booklet (for outputs more than 35 kW). All ordinary and special servicing operations and combustion checkings must be written on the booklet, together with the name of the person responsible for servicing.

  • Page 36: Boiler Controls

    Boiler controls To have the access to the boiler controls it is sufficient to push on the lower part of the panel, as shown in the figure. In addition to the controls in the front panel, we remind you that the boiler must be equipped, during the installation process, with an external general switch which totally disconnects the boiler from the electrical supply.
  • Page 37 SUMMER FUNCTIONING Turn the selector [2] bringing it in the SUMMER position Regulate the DHW Thermostat [4] in the position respective to the desired domestic hot water temperature. The burner will turn on automatically when hot water is required. In case of not ignition, check that the red lamp [7] is not on: if it’s on, turn the selector [2] in the central Off/ Unlock Position, wait until the red lamp [7] turns off, and then bring it again in the SUMMER...

  • Page 38: Working And Warning Indicators

    Working and warning indicators GREEN FUNCTIONING LAMP [1] The green lamp can be off, flashing (slowly or rapidly) or on. OFF: the boiler is electrically disconnected. In these conditions the boiler obviously doesn’t work. The Automatic Anti Freezing and Anti Blocking functions can’t be activated (useful during long period of inactivity).
  • Page 39 Also the opening of the manual venting taps of radiators (intentional or unintentional) makes the pressure decrease. Check that this doesn’t happen. — the boiler has an overheating and the Safety Thermostat has triggered; Turn the SUMMER/WINTER Selector in the central Unlock Position until the red lamp turns off (or eventually for a longer period to make the boiler cool), then bring again the selector in the desired position (Summer...

  • Page 40: Boiler Inactivity

    • If in the room where the boiler is installed there are mantelpieces, stoves, coal stoves or similar, fans for the Air Outlet, such as wall fans, aspiring cowls for cooking boards with outlet pipe, let the technician check that the inlet is correctly OVERSIZED or that there are the ADDITIONAL Inlets as prescribed by the laws in force, because, otherwise, these devices interfere with the evacuation of the Boiler’s Flue.

  • Page 41: Incidental Not Functioning

    For any intervention on the electrical, hydraulic or gas circuit exclusively call a qualified technician. The gas boilers must be fitted with original accessories only. HERMANN Ltd. is not responsible for damages caused by the incorrect, wrong or unreasonable use of non-original materials. User instructions...

  • Page 42: User Warnings

    HERMANN CONVENTIONAL GUARANTEE CONDITIONS Hermann offers to the customer a particular and exclusive CONVENTIONAL GUARANTEE, which is automatically activated asking the First Ignition to a Hermann Authorized Service Center. The conditions of the HERMANN CONVENTIONAL GUARANTEE don’t prejudge nor invalidate the rights indicated by the European Rule 1999/44/CE actuated with Italian Laws by the Decree 02 Februar 2002 N°24 of which the User is the Owner.
  • Page 44 Hermann Ltd. declines any responsibility for eventual printing and/or transcription errors in the present manual. In order to constantly improve its products, Hermann Ltd. has the right to change features and data 05/2005 COD. 982160031 / REV. 009 written in the present manual, at any time and without notice; therefore, this manual cannot be (UKENG) considered as a contract towards third parties.

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