Immergas HERCULES SOLAR 26 1A Manual
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Immergas HERCULES SOLAR 26 1A Manual

Immergas HERCULES SOLAR 26 1A Manual

Ecological floor-standing condensing boiler with stainless steel storage tank integrate with solar circuit
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HERCULES
SOLAR 26 1A
Ecological floor-standing
condensing boiler
with stainless steel storage tank
integrate with solar circuit

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Summary of Contents for Immergas HERCULES SOLAR 26 1A

  • Page 1 HERCULES SOLAR 26 1A Ecological floor-standing condensing boiler with stainless steel storage tank integrate with solar circuit...
  • Page 3 It is also prepared of hot water. HERCULES Solar 26 1A must be installed using for the realisation of mixed systems: one high temperature the intake/exhaust kits or the ducting systems (Ø 60 mm rigid, zone (e.g.
  • Page 4 Technical Documentation Technical Documentation Main dimensions and connections HERCULES Solar 26 1A Key: MB1 - Zone 1 low temperature system flow G 1” RA3 - Zone 3 high temperature system return G 3/4” (optional) (optional) RA1 - Zone 1 high temperature system return G 3/4”...
  • Page 5 Technical Documentation Technical Documentation HERCULES Solar 26 1A control panel Key: 12 - Functioning in summer mode - Stand-by - On Button 13 - Anti-freeze function in progress. 14 - Functioning in winter mode A - Summer ( ) and winter ( ) functioning mode selection button 15 - DHW functioning in “COMFORT”...
  • Page 6 Technical Documentation Technical Documentation HERCULES Solar 26 1A main components Key: 1 - Stainless steel storage tank 19 - Gas nozzle 39 - Positive signal pressure point 20 - Fan 40 - Negative signal pressure point 2 - DHW recirculation pump (optional)
  • Page 7 Technical Documentation Technical Documentation HERCULES Solar 26 1A wiring diagram Standard Configuration Key: 1 - Storage tank emptying cock 2 - Magnesium anode 3 - Domestic hot water expansion vessel 4 - Domestic hot water probe 5 - Stainless steel coil for storage tank...
  • Page 8 3-way valve to which it is connected. It is part of the integrated multifunction unit realised in composite material. There is a seat on the body where the automatic air vent valve (2) is housed. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 9 The condensate drain is also found in the lower part. To ease the escape of any air bubbles still present in the coils, FLOW there is a manual air vent in the upper part of the module (5). RETURN EXHAUST CONDENSATE STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 10 This allows to remove voltage to the motor blocking it in the position reached and to enable motor functioning only in the presence of a different request (DHW or CH signal). RETURN PUMP RETURN MANIFOLD RETURN RETURN COIL STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 11 It has a capacity of 12 litres (useful 4.2 litres) and a factory-set pressure of 1.0 bar. It is organised at the rear of the upper right zone of the appliance. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 12 To replace the air vent valve, the relative locking clip must be removed and the valve extracted (9) paying attention not to damage the relative O-ring. N.B.: when re-mounting the air vent valve, pay particular attention to insert the relative O-ring correctly. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 13 Technical Documentation Technical Documentation Central heating circuit HERCULES Solar 26 1A functioning with 1 pump (Zone 1) (standard configuration) RETURN COILS STORAGE TANK UNIT FLOW COILS STORAGE TANK UNIT Following a central heating type request, the P.C.B. starts the boiler pump (2), powers the central heating pump (4) and powers the electric 3-way valve motor (3) causing it to shift to the central heating position.
  • Page 14 N.B.: The pump, the system by-pass, the system filter and the one-way valve of zone 1 are supplied as per standard, while the others are included in the zone systems connection kit (optional). STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 15 B - Head available to the system with the standard pump (1st zone) at speed 4,5 (factory setting) C - Head available to the system with the standard pump (1st zone) at speed 3 STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 16 Technical Documentation Technical Documentation HERCULES Solar 26 1A functioning with 2 or 3 additional homogeneous zones (optional) (configuration with high temperature zones kit) RETURN COILS STORAGE TANK UNIT FLOW COILS STORAGE TANK UNIT Any division of the zone system (2 or 3) requires the assembly of a relevant kit inside the casing, which envisions the use of the zones management board (21) (see "Digital zones board"...
  • Page 17 A - Head available to the additional zones (2nd and 3rd zone) at maximum speed B - Head available to the additional zones (2nd and 3rd zone) at speed 4,5 C - Head available to the additional zones (2nd and 3rd zone) at speed 3 STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 18 Technical Documentation Technical Documentation HERCULES Solar 26 1A functioning with mixed systems with 1 additional mixed zone (optional) (configuration with Low Temperature Kit) RETURN COILS STORAGE TANK UNIT FLOW COILS STORAGE TANK UNIT The coupling to a mixed system divided into two zones envisions the installation of the "low temperature kit"...
  • Page 19 A - Head available to the additional zones (2nd zone) at maximum speed B - Head available to the additional zones (2nd zone) at speed 4,5 C - Head available to the additional zones (2nd zone) at speed 3 STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 20 Technical Documentation Technical Documentation HERCULES Solar 26 1A functioning with mixed systems with 2 additional mixed zones (option- (configuration with Low Temperature Kit) RETURN COILS STORAGE TANK UNIT FLOW COILS STORAGE TANK UNIT The division of the mixed system into three zones requires the assembly of a relevant kit inside the casing, which envisions the use of the zones management board (21) (see "Digital zones...
  • Page 21 A - Head available to the additional zones (2nd and 3rd zone) at maximum speed B - Head available to the additional zones (2nd and 3rd zone) at speed 4,5 C - Head available to the additional zones (2nd and 3rd zone) at speed 3 STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 22 (1) and powers the electric 3-way valve motor (2). The consequent shifting of the valve into the DHW position (see electric 3-way valve functioning) leads to the closure of the hydraulic manifold return pipe and the simultaneous opening STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 23 It allows the integrated P.C.B. to detect the temperature of the water contained in the storage tank. It is fixed to the external wall of the storage tank and is inserted inside an immersion sample point. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 24 It will be activated when the solar collector is in the conditions to heat the storage tanks and it will be deactivated when the solar collector cannot transfer heat to the storage tank. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 25 (e.g. between 42 and 48°C). - to allow extended use of the water stored at a high tem- perature through time, delivering "attenuated" water to the utilities. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 26 The following graphics show the characteristic curves depend- ing on the pump speed. Flow rate Litres/h A - Head available to the pump group at third speed B - Head available to the pump group at second speed STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 27 (4), where the premix starts with the combustion agent air. The mixture obtained in this way is ignited on the surface of the cylindrical burner (8) by the discharge of the ignition electrodes (9). STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 28 3 kW (2,580 kcal/h) (12 % of the nominal output). Ignition takes place by means of an integrated P.C.B. that controls the ignition (7) and detection electrodes (9). STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 29 It is fixed onto the left side of the burner flange (4). Note: In the case of ignition block, check the distances of the ignition and detection electrodes keeping to the heights stated in the figure below. IGNITER DRAWING STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 30 Loosen the tightening bolts on the system flow and return pipes and of the condensate discharge pipe positioned in the lower part of the module. Loosen the two screws (7) and (9) that fix the condensation module to the support back using brackets STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 31 Below find the default settings present on the boiler (length 1 m): HERCULES Solar 26 1A G20: LPG: SPEED MAX. 5580 (rpm) 4980 (rpm) - to modify the maximum number of fan revs.
  • Page 32 Technical Documentation Technical Documentation HERCULES Solar 26 1A at nominal output at minimum output (central heating) (central heating) G 20 9.50% ± 0,2 9.00% ± 0,2 G 30 12.30% ± 0,2 11.80% ± 0,2 G 31 10.60% ± 0,2 10.10% ± 0,2...
  • Page 33 If this should take too long, fill the siphon with water manually (4). flue temp with flow 85 °C = 78 °C). A flue safety thermostat is inserted onto the condensation module (12), to protect the flue hood (1) and which intervenes STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 34 Technical Documentation Intake and exhaust systems (see intake and exhaust terminals instructions) The HERCULES Solar 26 1A boiler is prepared for connection to the relevant coupling intake/exhaust pipes and can only be installed in the home in the following configurations:...
  • Page 35 (4). relevant silicon lip seals gaskets in EPDM peroxide resistant The maximum length allowed is 14.4 straight vertical metres. to the action of the condensate. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 36 Using a divided kit 80/80 (1 bend + 1 m in intake and exhaust) with intake grid, the maximum length allowed is 22 straight vertical metres. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 37 Using a divided kit 80/80 (1 bend + 1 m in intake and exhaust) maximum length allowed is 30 straight vertical metres. with intake grid, the maximum length allowed is 30 straight vertical metres. STHSC ed 0710 HERCULES Solar 26 1A...

  • Page 38: Table Of Contents

    - SUPER CAR remote control (optional) - Safety thermostat - Boiler card transformer - Flue safety thermostat - Room thermostat jumper - Phase fuse - Gas valve - Igniter - Anti-jamming filter - Boiler pump STHSC ed 0710 HERCULES Solar 26 1A...

  • Page 39: Electric Circuit

    Successively the burner goes to the minimum value set by means of the "MIN CH.*" parameter setting, to then reach the maximum value set (if requested) by setting the "MAX. CH" parameter in a determined time from the setting of the STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 40 The function ends after 18 hours or by switching the boiler When the temperature measured by the DHW probe (B2) on using the ignition button ( exceeds the value requested (temperature set), the burner is STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 41 45°C. Two functioning modes are possible depending on the setting of the "DHW OFF" parameter: STHSC ed 0710 HERCULES Solar 26 1A...

  • Page 42: M1 - Boiler Pump

    It cuts off the power supply to the circuit when the current absorbed Line fuse Fuse exceeds 3.15A. 3.15 AF 250 V (F1) It is inserted onto the integrated P.C.B. STHSC ed 0710 HERCULES Solar 26 1A...

  • Page 43: Return Probe Resistance

    10 kΩ 25 °C Its breakage (signalled by relative anomaly) blocks burner functioning both in central heating and domestic hot water modes. It is also used as a flow limit thermostat (90 °C). STHSC ed 0710 HERCULES Solar 26 1A...

  • Page 44: Room Thermostat Jumper

    Management and control devices IMG BUS connection It allows the connection of electronic devices, e.g. Immergas zones digital control unit. (optional) Allows long distance control of the generator (SUM/WIN switch,...
  • Page 45 Five attempts can be gained by by pressing the (IMG) or Stand-by key or by removing the power supply to the circuit. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 46 To prevent overheating of the water-gas heat exchanger, if the boiler temperature detected Flow over-heating by the NTC flow probe (B1) exceeds 105 °C, the fan is made to work until the temperature ventilation drops below 100 °C. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 47 55° to satisfy the setting of 60° in central heating COMFORT or SAVING ( )functioning mode mode made by the selector switch (3). selection button Reset (RESET) / exit menu (ESC) button Menu entry (MENU)/ data confirmation button (OK) STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 48 When the solar pump is powered, the display will show SOLAR’, which may alternate with other function texts in progress. The solar pump functions permanently. SOLAR ON SOLAR OFF The solar pump stays off. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 49 Technical Documentation Programming the P.C.B. Important: if the international language is to be restored (A1), The HERCULES Solar 26 1A boiler is prepared for possible proceed as follows: programming of several operation parameters. - press button “D” to enter the configuration menu.
  • Page 50 Remote Control or TA are out GENCY)  of order (EMERG.)  RESET By pressing button “D” the customisations selection (RESET made are reset, restoring the values set in ALL) the factory  STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 51 (MAX. EXT (can be set from 5°C to +25°C) 25°C N.B.: to continue it is necessary to confirm the parameter (press “D” or exit from “P66” adjustments by pressing “C”) STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 52 -10°C ÷ If the reading of the external probe is not correct it is possible to correct it in (EXT. T. 0°C +10°C order to compensate any environmental factors CORR) STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 53 With external probe (optional) present the flow temperature can be corrected with respect to the select (SET. L.T. 3) functioning curve set by the external probe. See OFFSET on the external probe graphics by modi- fying the temperature from -15°C to +15°C.  C STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 54 Technical Documentation Technical Documentation Fault and anomaly signals The HERCULES Solar 26 1A boiler signals any anomalies to the error code described in the following table. by the flashing symbol (5) along with the “ERR xx” To eliminate the block, (where necessary), press the RESET indication on the indicator (6) where “xx”...
  • Page 55 Expansion vessel factory-set pressure Content of glycol in the solar circuit Pump consumption Total head available with 800 l/h flow rate kPa (m c.a.) 10.50 (1.07) Flow rate regulator control range l/min 1 - 6 STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 56 - The max. sound level emitted during boiler operation is < 55dBA. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 57 Code 3.019305 Code 3.020193 Recess installation kit for 1-2 CP2/CP4 Flat Collectors Code 3.019303 The boiler is prepared for coupling to the DIM (Multi-system Distribution Manifold), available in 5 recess or wall-hung kits. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 58 If digital zones control unit is present See section F See section B The 3-way valve goes into the CH See section C position. T h e z o n e p u m p See section G starts. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 59 - Check their functionality and replace them if necessary The central heating request is satisfied. The domestic hot water request is satisfied. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 60 N.B.: it is recommended to check the correct pressure of the inlet gas and check any obstructions of the gas piping upstream from the boiler. Error 02 intervenes also if the board detects a loss of the flame signal 6 times in 8.5 minutes. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 61 P.C.B. The board is configured as boiler with solar storage tank. For the HERCULES Solar 26 1A boiler check the PRESENCE of the (presence of the R14 resistance between clamps 6-7 of the connector X7).
  • Page 62 - the correct functioning of any thermostatic valves. The NTC flow probe is OK (10 kΩ at 25°C). Replace NTC probe. Check/clean/replace the main heat exchanger (condensation module). If the anomaly persists, replace the P.C.B. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 63 The Remote Control is connected correctly. Check the connection between P.C.B. (clamps 42-43) and remote control N.B.: it is possible to use only remote controls supplied by Immergas (IN+ and IN-) carried out respecting the polarity and using a dedicated (CAR or Super CAR remote control).
  • Page 64 Replace the PT storage unit solar probe. Whenever the anomaly persists, replace the P.C.B. N.B.: before changing the boiler P.C.B. it is recommended to check the PT1000 interface board (A11) and replace it if necessary. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 65 Replace the PT storage unit solar probe (1000 Ω at 0°C or 1078 Ω at 20°C) Wait for the temperature measured by the solar storage tank unit probe to fall to "PAR6 SOLAR" section value -5K STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 66 - check that, after 2 ignition attempts, the display shows error "01". - with the help of the single wire wiring diagram, use a tester to check that there is no voltage on the gas valve power supply cables. STHSC ed 0710 HERCULES Solar 26 1A...
  • Page 67 Release the pumps of the respective zones by acting on the shaft after having loosened the front cap and replaced, if necessary. N.B.: there may be a fixed red light on the pumps STHSC ed 0710 HERCULES Solar 26 1A...

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