Summary of Contents for Groupe Atlantic Varmax 120
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Document No. 00BNO9061-L / 18.04.16 VARMAX FR EN DE ES IT NL GAS CONDENSING BOILER 120 to 450 kW with modulating burner for natural gas and propane gas Installation, use and maintenance instructions MANUFACTURER: 00BNO3000-# SITE DE PONT-DE-VAUX 1 route de Fleurville - BP 55 FR - 01190 PONT-DE-VAUX...
VARMAX - Installation, Use and Maintenance CONTENTS 1. WARNINGS AND RECOMMENDATIONS ................6 1.1. Transport and storage ........................... 6 1.2. Symbols used in this document........................6 1.3. Qualifi cation of personnel for installing, adjusting, using and maintaining the equipment ......6 1.4.
VARMAX - Installation, Use and Maintenance 1. WARNINGS AND RECOMMENDATIONS PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLING, CARRYING OUT MAINTENANCE AND USING THE BOILER. IT CONTAINS IMPORTANT SAFETY INFORMATION. VARMAX boilers are available with 2/3 tappings or 4 tappings. It is not INFORMATION: possible to transform a version with 2/3 tappings into a version with 4 tappings and vice versa.
VARMAX - Installation, Use and Maintenance If you smell gas: • Do not use a naked fl ame, do not smoke, do not turn on electrical contacts or switches. DANGER: • Cut off the gas supply. • Air the premises. •...
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VARMAX - Installation, Use and Maintenance 1.5.2. Protecting the unit against scaling Water naturally contains dissolved calcium ions and carbonates that cause scaling (calcium carbonate) to form. To prevent excessive deposits, take precautions with regard to the water used to fi ll the unit TH < 10°f Water must be added during the life of the boiler.
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VARMAX - Installation, Use and Maintenance These rules include: - Opt for an expansion vessel with a membrane rather than an open expansion vessel that allows direct passage. - Make sure pressure in the equipment is more than 1 bar when cold. - Remove non-gas-tight components (permeable) and use gas-tight equipment instead.
VARMAX - Installation, Use and Maintenance 2.4. Gas supply pressures INFORMATION: The pressures given below must be read at the gas valve inlet. G31 Propane gas Natural gas H G20 (for relevant models and countries only) 20 mbar Nominal pressure (mbar) Minimum pressure (mbar) Maximum pressure (mbar) 18.04.16...
VARMAX - Installation, Use and Maintenance 3.2. Doorways VARMAX 120 to 225 boilers fi t through doors 700 mm wide with the casing on (boiler with doors and side jackets). VARMAX 275 to 320 boilers fi t through doors 735 mm wide without the casing on (boiler without doors, without side jackets and without side insulating panels).
VARMAX - Installation, Use and Maintenance 3.3. Combustion at 15°C and 1013 mbar 3.3.1. G20 Natural Gas MODELS Nominal power Pn (80/60°C) Nominal power when condensing P (50/30°C) Nominal heat input Qn Minimum heat input Qmin Gas fl ow rate at Pn 12,7 14,81 19,05...
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VARMAX - Installation, Use and Maintenance 3.3.2. G31 Propane Gas (for relevant models and destination countries) MODELS Nominal power Pn (80/60°C) Nominal power when condensing P (50/30°C) Nominal heat input Qn Minimum heat input Qmin Gas fl ow rate at Pn 4,91 5,73 7,36...
VARMAX - Installation, Use and Maintenance 3.4. Conditions of use MODELS Maximum start setting temperature °C Start maximum temperature °C Safety temperature °C 6000 Maximum service pressure (bar) 1000 Minimum cold pressure (bar) Hydraulic pressure loss at ∆T20 version with 2 or 3 tappings 1185 daPa version with 4 tappings...
VARMAX - Installation, Use and Maintenance 4. INSTALLATION Manipulation of the boiler using a hoist requires the use of a frame DANGER: (not supplied). This is COMPULSORY. Refer to the label stuck onto the boiler's packaging. 4.1. Installation of the air fi lter and fi lter matting If connecting CHIMNEY B23 or B23P, it is COMPULSORY to fi...
VARMAX - Installation, Use and Maintenance 4.2. Installing the boiler VARMAX boilers must not be installed on an infl ammable surface (wooden fl oor, plastic fl oor covering, etc.). Recommended distances from walls and the fl oor: Ensure there is suffi cient clearance so that work may be carried out easily on the boilers.
VARMAX - Installation, Use and Maintenance 4.3. Opening / closing of casing doors Opening: Put the handle locking system in a horizontal position (mark 1) then press down on it. The handle is released from its housing; you can now open the right-hand door, followed by the left- hand door.
VARMAX - Installation, Use and Maintenance You can: • put the control panel back in its place (to view data displayed when adjusting or carrying out maintenance), or • fi t the control panel to the boiler (see opposite, ...
VARMAX - Installation, Use and Maintenance 4.6. Removing / refi tting side panels Open the casing doors. Remove the locking screw accessible via the inside of the boiler. locking screw Use the handle in the centre of the panel for this. Lift up the panel vertically and remove.
fi gure 11 - Installing the step VARMAX - Installation, Use and Maintenance 4.8. Step The step is a means to access the burner. It cannot be used as a work WARNING: platform. There are steps on models 180 and above. On models 180 to 320: Open the doors.
VARMAX - Installation, Use and Maintenance 4.9. Changing the gas type G20 to G31) The boiler has been adjusted in the factory to work with group H (type G20) natural gas with a supply pressure of 20 mbar. INFORMATION: Its adaptation to suit any other type of gas must take place in compliance with the regulations in effect in the country in which the appliance is installed.
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VARMAX - Installation, Use and Maintenance 4.9.2. On VARMAX 120, 140, 275 and 320 The type of gas is changed by installing the diaphragm (brass part) provided with the boiler (engraved B1P for 120 and 140 models or engraved B3P for 275 and 320 models).
VARMAX - Installation, Use and Maintenance 4.9.3. On VARMAX 180 and 225 nut (x4) The type of gas is changed by replacing the diaphragm located on the gas line. Unscrew the 4 nuts (see opposite), then remove the diaphragm in place (brass part). Replace this with that provided with the boiler (engraved B2P).
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VARMAX - Installation, Use and Maintenance Chimney fl ues must be dimensioned considering the combustible gas pressure at the boiler outlet of 0 Pa (see table § 3.3, page 15). The fl ue-gas extraction ducts must be made in a material resistant to the condensate that can form when the boiler is operating.
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VARMAX - Installation, Use and Maintenance Height of fl ue-gas duct H in linear metres (lm) (operating at 50/30°C) ø connection 150 mm 180 mm 200 mm ø duct 180 mm 200 mm 250 mm 250 mm 300 mm Type of gas 94 4 100 4 100 3...
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VARMAX - Installation, Use and Maintenance Cascade installation case In this case, where boilers with different powers are connected, the most powerful models must be closest to the chimney. The boiler is equipped with an internal check valve smoke diverter, replacing any other external and functionally identical system.
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VARMAX - Installation, Use and Maintenance Sizing recommendations on the basis of a UBBINK system: ø Using a Ubbink duct in PPTL 160 requires a Male 150 / Female 160 adaptor (reference 041432) at the boiler outlet. ø ø fi gure 19 - B23P (Ubbink) sizing recommendations Height of fl...
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VARMAX - Installation, Use and Maintenance 4.10.4. Connection to a C13 or C33 air vent Type C13 connection: Air inlet and gas extraction via separate ducts connected to a horizontal concentric terminal (air vent). Type C33 connection: Air inlet and gas extraction via separate ducts connected to a vertical concentric terminal.
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VARMAX - Installation, Use and Maintenance In addition, in the duct length calculation, the following equivalences must be used; - 90° elbow = 1.5 m of straight duct - 45° elbow = 0.8 m of straight duct The terminal's installation must comply with the rules in § 4.10.3, page 30. To facilitate mounting of fl...
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VARMAX - Installation, Use and Maintenance The fl ue-gas terminal's installation must comply with rules in § 4.10.3, page Ensure the slope towards the boiler is at least 3° (fl ue-gas side). On the air duct side, adjust a slope to the outside to avoid the risk of rainwater in the boiler.
VARMAX - Installation, Use and Maintenance 4.11. Hydraulic connection The presence of an integrated irrigation pump in the boiler and an intelligent control logic enables optimal operation up to IUP/30 (IUP = Instant Useful Power expressed in Th/h - 1Th/h = 1.163 kilowatts). Below this throughput of IUP /30, the boiler will continue to operate, but will gradually lose power (boiler stops below IUP /46).
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VARMAX - Installation, Use and Maintenance 3 tappings VARMAX boilers are fi tted with 2 returns and an optimised internal water circuit allowing effective Flow separation of high temperature returns (coming from DHW preparation circuits, radiators, etc.) from low temperature circuits (underfl oor heating circuits, low temperature radiator circuits, etc.).
VARMAX - Installation, Use and Maintenance 4.11.3. Condensate removal Removal to the drains, via a drain hopper, using a P.V.C tube (minimum diameter 32 mm) is mandatory because the condensates are acidic and thus aggressive (pH between 3 and 5). Use a suffi...
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VARMAX - Installation, Use and Maintenance Refer to the instructions of installation and use of the NAVISTEM B3000 boiler command table for information concerning electrical connections to the control panel (characteristics of the electrical power supply, cable section and connection to terminal blocks). 4.13.1.
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VARMAX - Installation, Use and Maintenance 4.13.3. Connection of the boiler command table to the terminal blocks To connect the boiler command table, refer to the relevant instructions of installation and use. For connection, comply with the wiring diagram, in particular the ATTENTION : phase, neutral and earth polarities.
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VARMAX - Installation, Use and Maintenance N1A N1B 230 V 230 V NAVISTEM B3000 QAD 36 QAD 36 QAD 36 QAD 36 QAZ 36 QAZ 36 QAC 34 QAC 34 AVS75 G+ CL- CL+ AVS75 x 3 AVS75 x 3 OCI 345 OCI 345 OCI 345...
VARMAX - Installation, Use and Maintenance 5. COMMISSIONING 5.1. Unlocking the boiler During commissioning, the unlocking of the boiler can only be achieved if the hydraulic system is compliant with the recommendations WARNING: mentioned in the hydraulic diagrams (see section 8.3, page 54). The person in charge of this operation must ensure such compliance.
VARMAX - Installation, Use and Maintenance 5.3. Commissioning Before being packed up, all boilers are tested in the factory operating on group H natural gas (type G20), during which all settings are made. For commissioning, carry out the following operations: 1.
VARMAX - Installation, Use and Maintenance 6. POST-COMMISSIONING CHECK 6.1. Condensate removal Check that the removal of condensates is not obstructed, on both the boiler side and the pipe side 6.2. Gas supply Check that the gas pipe diameter is correctly sized: It is necessary to stop all the boilers together abruptly using the boiler room main circuit breaker to check that the gas pressure regulator safety device is not triggered.
VARMAX - Installation, Use and Maintenance 7. MAINTENANCE OPERATIONS There are two types of maintenance operations: • yearly maintenance • in-depth maintenance every 3 years. The table below shows which actions to undertake depending on the type of maintenance to be performed. In all events, these operations must be performed by a qualifi...
VARMAX - Installation, Use and Maintenance 7.1. Boiler draining • Close the shut-off valves of the fl ow and return Main exchanger drain valve tappings. (front of boiler) • Connect the drain valves (main exchanger and condenser) to the drain with a suitable hose. •...
VARMAX - Installation, Use and Maintenance The air fi lter is an important element of the boiler. It limits the burner and the exchangers becoming sooty. Changing it regularly (at INFORMATION: least every year) makes burner and exchanger cleaning operations considerably easier.
VARMAX - Installation, Use and Maintenance Check the geometry of the arc electrode: 13,8 mm If deformed more than ±3 mm, replace the electrode. U0502273-# fi gure 36 - Geometry Re-assemble the electrode block(s). Tightening torque of the block fi xing screws = 2.5 N.m. 7.5.
VARMAX - Installation, Use and Maintenance 7.7. Checking combustion quality This check is performed using a calibrated combustion case. To do this, insert the measuring stick into the fl ue outlet (see diagram opposite). Flue-gas sample point The boiler's starting temperature must be above 70°C.
VARMAX - Installation, Use and Maintenance 7.8. Setting the gas valve This VARMAX boiler has been adjusted in the factory to operate with group H natural gas (type G20) with inlet gas pressure of 20 mbar. Any work on adjusting the gas valve must be performed by a qualifi ed WARNING: professional.
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VARMAX - Installation, Use and Maintenance 7.8.2. For models 180 to 450 The measurements for setting the valve must Hexagonal Cover be taken using the pressures indicated Pvalve 3 mm wrench and Pupstream (see diagram opposite). Offset regulator Pvalve Pupstream U0501967-# fi...
Gas fi lter U0503716-# U0503711-# fi gure 43 - Gas fi lter on VARMAX 180 to 450 fi gure 42 - Gas fi lter on VARMAX 120 and 140 WARNING: Check gas-tightness after refi tting. Page 50 / 146 00BNO9061-L...
VARMAX - Installation, Use and Maintenance 7.10. Cleaning exchangers and changing seals Removal of exchanger doors: - Remove the front and side cladding to access the 3 service doors. - Using a 13mm wrench, unscrew the service door attachment screws until the tightening bolts turn. - Then remove the door.
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VARMAX - Installation, Use and Maintenance Changing door seals: - Remove the seals from their groove and replace service with new seals from the maintenance kit (see door fi gure 46). groove seal U0502445-# fi gure 46 - Changing door seals Refi...
VARMAX - Installation, Use and Maintenance 7.11. Cleaning the burner and changing the seals To facilitate access to the spool piece and then the gas tube, part of the upper door is removable. removable part U0502250-# fi gure 48 - Removable upper door Removing the burner tube: spool piece - Remove the 2 electrode blocks before removing...
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VARMAX - Installation, Use and Maintenance - Rotate the tool anticlockwise to unlock the ramp. Plastic valve Unlocked Locked U0516842-# fi gure 51 - Positions of the fastening clamps - Remove the clamp from the burner tube. - Remove the burner tube. Remove the plastic valve on the spool piece before removing the burner WARNING: tube.
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VARMAX - Installation, Use and Maintenance Keep a distance of 10 mm between the suction nozzle and the metal WARNING: mesh. Any rubbing of the boiler tube may cause damage. NEVER USE A METAL BRUSH. WARNING: Replace the seal under the clamp on the burner tube. Refi...
VARMAX - Installation, Use and Maintenance 8. END-OF-LIFE CYCLE OF THE APPARATUS Regulatory disposal and managed recycling of this product can prevent damage to the environment and health risks. a) For the disposal of the product and the component parts, the services of an accredited waste disposal company should be used.
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