Hamworthy VARMAX 120 Installation, Commissioning And Servicing Instructions
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Hamworthy VARMAX 120 Installation, Commissioning And Servicing Instructions

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Varmax Boilers
Models: 120 to 600 kW
INSTALLATION, COMMISSIONING AND
SERVICING INSTRUCTIONS
IMPORTANT NOTE
THESE INSTRUCTIONS MUST BE READ
AND UNDERSTOOD BEFORE INSTALLING,
COMMISSIONING, OPERATING OR
SERVICING EQUIPMENT

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  • Page 1 Varmax Boilers Models: 120 to 600 kW INSTALLATION, COMMISSIONING AND SERVICING INSTRUCTIONS IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING, COMMISSIONING, OPERATING OR SERVICING EQUIPMENT...
  • Page 2 Site Assembly Hamworthy offer a service of site assembly for many of our products where plant room access is restricted. Using our trained staff we offer a higher quality of build and assurance of a boiler built and tested by the manufacturer.

  • Page 3: Table Of Contents

    VARMAX - Installation, Use and Maintenance CONTENTS 1. WARNINGS AND RECOMMENDATIONS ................5 1.1. Transport and storage ........................... 5 1.2. Symbols used in this document........................5 1.3. Qualification of personnel for installing, adjusting, using and maintaining the equipment ..........................5 1.4. Safety instructions ............................5 1.5. Water characteristics ............................. 6 2.
  • Page 4 VARMAX - Installation, Use and Maintenance 5. COMMISSIONING .......................45 5.1. Unlocking the boiler ............................. 45 5.2. Pre-commissioning checks ......................... 45 5.3. Commissioning ............................46 6. POST-COMMISSIONING CHECK ..................47 6.1. Condensate removal ........................... 47 6.2. Gas supply ..............................47 6.3. Full power cuts ............................47 7.

  • Page 5: Warnings And Recommendations

    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.

  • Page 6: Water Characteristics

    VARMAX - Installation, Use and Maintenance If you smell gas: • Do not use a naked flame, do not smoke, do not turn on electrical contacts or switches. DANGER: • Cut off the gas supply. • Air the premises. • Look for the leak and repair it. If you see smoke: •...
  • Page 7 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 fill the unit TH < 10°f Water must be added during the life of the boiler. The new water adds scaling to the water system. The amount of fill water and the amount of make-up water added throughout the unit's lifecycle must not be more than three times the water capacity of the heating system. Also, the hardness of the make-up...
  • Page 8 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.

  • Page 9: Approvals

    DK, EE, FI, HU, CZ, GR, GB, IE, LV, NO, SE, TR LT, RO, SI, SK B23 - B23 P 2H3P VARMAX 120 to 225 C13 - C33 - C53 B23 - B23 P 2H3P VARMAX 275 to 320 B23 - B23 P VARMAX 390 to 600 14.09.2020...

  • Page 10: Gas Supply Pressures

    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) 00BNO9168-I (U0606551)
  • Page 11 VARMAX - Installation, Use and Maintenance 14.09.2020 11 / 156...

  • Page 12: Technical Specifications

    VARMAX - Installation, Use and Maintenance 3. TECHNICAL SPECIFICATIONS 3.1. Dimensions The visuals below represent boilers with smoke nozzle and hydraulic INFORMATION : connections (start / return) that can not be dismantled. ø ø Only on 4-point models ø ø (B23-B23P) ø...
  • Page 13 VARMAX - Installation, Use and Maintenance MODELS (mm) 1161 (mm) 1530 1780 1877 2023 2016 (mm) 1181 1202 1328 1372 1588 (mm) (mm) (mm) (mm) 138,5 138,5 138,5 138,5 138,5 (mm) 274,5 390,5 (mm) 350,5 350,5 399,5 449,5 577,5 (mm) 150,5 150,5 209,5...

  • Page 14: Doorways

    VARMAX - Installation, Use and Maintenance 3.2. Doorways VARMAX 120 to 225 boilers fit through doors 700 mm wide with the casing on (boiler with doors and side jackets). VARMAX 275 to 320 boilers fit through doors 735 mm wide without the casing on (boiler without doors, without side jackets and without side insulating panels). However, it is possible to pass through the 700 mm doors if the following parts are removed, in addition to the parts mentioned above: • the two inspection doors with their 16 fastening clamps, •...

  • Page 15: Reduced Access (Depending On Model)

    VARMAX - Installation, Use and Maintenance 3.3. Reduced access (depending on model) After the product is unpacked, the return tapping (models 275 to 600) and the gas nozzle (all models) may be removed. After dismantling to the heating body, the outlet tapping (models 275 to 6050) may also be removed. Removable parts 120 140 180 225 (mm) 1271 1620 (mm) 1085 1114 (mm) (mm) (mm) (mm) (mm) 275 320 390 450 525 600 (mm) 1677 1944...

  • Page 16: Combustion At 15°C And 1013 Mbar

    VARMAX - Installation, Use and Maintenance 3.4. Combustion at 15°C and 1013 mbar 3.4.1. 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 12,7 14,81 19,05 23,81 29,1 33,86 41,3...
  • Page 17 VARMAX - Installation, Use and Maintenance 3.4.2. 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 flow rate at Pn 4,91 5,73 7,36...

  • Page 18: Conditions Of Use

    VARMAX - Installation, Use and Maintenance 3.5. Conditions of use MODELS 120 140 180 225 275 320 390 450 525 600 Maximum start setting temperature °C Minimum start setting temperature °C Start maximum temperature °C Safety temperature °C 6000 Maximum service pressure (bar) 1000 Minimum cold pressure...

  • Page 19: Installation

    VARMAX - Installation, Use and Maintenance 4. INSTALLATION 4.1. Handling and moving the boiler Manipulation of the boiler using a hoist requires the use of a frame DANGER: (not supplied). This is COMPULSORY. The following indication is applicable only for the 525 and 600 kW models.

  • Page 20: Installing The Boiler

    VARMAX - Installation, Use and Maintenance 4.3. Installing the boiler VARMAX boilers must not be installed on an inflammable surface (wooden floor, plastic floor covering, etc.). Recommended distances from walls and the floor: Ensure there is sufficient clearance so that work may be carried out easily on the boilers. The minimum values (in mm) are indicated in figure 4 and in the table below. Top view : Models 120 to 450 : Back 00BET9005-#...

  • Page 21: Opening / Closing Of Casing Doors

    VARMAX - Installation, Use and Maintenance The boiler must be positioned horizontally using a spirit level to WARNING: promote effective ventilation of the heat exchanger (use the base as a reference surface). To adjust the level, screw or unscrew the 4 adjustable feet as required using a 17 mm wrench. 4.4. Opening / closing of casing doors Opening: Put the handle locking system in a horizontal position (mark 1) then press down on it.

  • Page 22: Removing / Refitting The Casing Doors

    VARMAX - Installation, Use and Maintenance   (to view data displayed when adjusting or carrying out maintenance), or • fit the control panel to the boiler (see opposite, so that the left-hand casing door can be removed without any risk to the control panel).   figure 8 - Positions of the control panel 4.6.

  • Page 23: Removing / Refitting Side Panels

    VARMAX - Installation, Use and Maintenance 4.7. Removing / refitting side panels Open the casing doors. Remove the locking screw accessible via the inside of the boiler. locking * For models 120 to 320 kW. screw* Use the handle in the centre of the panel for this. Lift up the panel vertically and remove.

  • Page 24: Step

    figure 13 - Installing the step VARMAX - Installation, Use and Maintenance 4.9. 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.

  • Page 25: Changing The Gas Type (G20 To G31)

    VARMAX - Installation, Use and Maintenance 4.10. 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.
  • Page 26 VARMAX - Installation, Use and Maintenance 4.10.2. 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).

  • Page 27: Exhaust Connection

    VARMAX - Installation, Use and Maintenance 4.10.3. 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).
  • Page 28 VARMAX - Installation, Use and Maintenance Chimney flues must be dimensioned considering the combustible gas pressure at the boiler outlet of 0 Pa (see table § 3.3, page 16). The flue-gas extraction ducts must be made in a material resistant to the condensate that can form when the boiler is operating.
  • Page 29 VARMAX - Installation, Use and Maintenance The above values are provided for information purposes only. It is IMPORTANT: important to check them with a calculation. The weight of flue-gas ducts must not be supported by the part IMPORTANT: connecting to the boiler. 4.11.2.
  • Page 30 VARMAX - Installation, Use and Maintenance Sizing recommendations on the basis of a POUJOULAT system (Condensor type): ø duct figure 20 - B23P (Poujoulat) sizing recommendations Height of flue-gas duct H in linear metres (lm) (operating at 50/30°C) ø connection 150 mm 180 mm 200 mm...
  • Page 31 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 figure 21 - B23P (Ubbink) sizing recommendations Height of flue-gas duct H in linear metres (lm) (operating at 50/30°C) ø...
  • Page 32 VARMAX - Installation, Use and Maintenance 4.11.3. Cascade boilers The installation must be carried out in such a way that when one boiler is stopped or in mini operation, the others do not back up into it.The installation of a valve at the outlet of the boiler is not necessary because it is already integrated in the boiler.
  • Page 33 VARMAX - Installation, Use and Maintenance 4.11.5. 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.
  • Page 34 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 § 4.11. To facilitate mounting of flue-gas ducts (PPTL), coat the joints with liquid soap or a suitable grease (provided in the "terminal kit").
  • Page 35 VARMAX - Installation, Use and Maintenance The flue-gas terminal's installation must comply with rules in § 4.11. Ensure the slope towards the boiler is at least 3° (flue-gas side). On the air duct side, adjust a slope to the outside to avoid the risk of rainwater in the boiler. To facilitate mounting flue-gas ducts for models 120 to 225, coat the joints in liquid soap or a suitable grease (provided in the "terminal kit"). 450 mm 450 mm maxi maxi ø ø 450 mm maxi 450 mm maxi ø ø U0501350-# U0501496-# figure 25 - Type C53 connection (VARMAX figure 26 - Type C53 connection (VARMAX models 120 to 225)

  • Page 36: Hydraulic Connection

    VARMAX - Installation, Use and Maintenance 4.12. 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).
  • Page 37 VARMAX - Installation, Use and Maintenance 4.12.2. Optimization operation / Performance: • Adjust the water laws of the heating networks to promote the overall efficiency of the installation. 4.12.3. Optimization operation / Performance in 2 connections: • Suitable for connecting a single regulated heating circuit. The lower the temperature regime, the better the performance.
  • Page 38 VARMAX - Installation, Use and Maintenance o Present the lowest water law which optimizes the condensation operation. For example, prefer a floor heating circuit to a radiator circuit. o Being the most demanding circuit in operation time which allows to irrigate more often the condenser and recover a maximum of calories. Example: Prefer a North circuit to a South circuit. o In the presence of DHW production and in order to avoid thermal discomfort on the circuit connected to the condenser: •...
  • Page 39 VARMAX - Installation, Use and Maintenance 4.12.6. Boiler with 2 or 3 tappings 2 tappings If all the circuits have the same return temperatures, the return tapping located in the lower part must Flow be used. Clamp obstructing return Return U0501961-A figure 27 - Connection with 2 tappings 3 tappings VARMAX boilers are fitted with 2 returns and an optimised internal water circuit allowing effective...

  • Page 40: Gas Connection

    VARMAX - Installation, Use and Maintenance 4.12.7. Boiler with 4 tappings An additional improvement can be obtained by connecting the boiler in 4 taps. It consists in decoupling the condenser (low temperatures) Main exchanger flow from the main exchanger (high temperatures). VARMAX 4-port boilers are equipped with 2 Condenser flow internal irrigation circuits which separate the...

  • Page 41: Electrical Connection

    VARMAX - Installation, Use and Maintenance The value read at the gas valve input must be between the limits indicated in the table in chapter 2.5, page 10 for the type of gas used. The boiler's gas line connection must not be subject to any mechanical stress (risk of loss of gas tightness of the gas valve).
  • Page 42 VARMAX - Installation, Use and Maintenance 4.14.1. Control panel To access the control panel, open the casing doors on the front of the boiler. The control panel is on the upper front left of the boiler. Unscrew the turn screw at the bottom of the cover. Lift up the cover and pull backwards.
  • Page 43 VARMAX - Installation, Use and Maintenance 4.14.4. Connection of AVS75 extension module(s) (optional) To install AVS75 module(s) (3 max), refer to the instructions provided with the accessory (reference 059751). AVS75 location (behind side door) U0501963-A figure 32 - AVS75 location 4.14.5.
  • Page 44 VARMAX - Installation, Use and Maintenance figure 33 - Electrical wiring diagram 00BNO9168-I (U0606551) 44 / 156...

  • Page 45: Commissioning

    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 9.3). The person in charge of this operation must ensure such compliance.

  • Page 46: Commissioning

    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. Switch on the main power. Flue-gas sample 2. Create a request for heat via the comfort mode point using the customer interface (see chapter "3 - Interface utilisateur"...

  • Page 47: Post-Commissioning Check

    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.

  • Page 48: Maintenance Operations

    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 qualified professional.

  • Page 49: Boiler Draining

    VARMAX - Installation, Use and Maintenance 7.1. Boiler draining • Close the shut-off valves of the flow 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. • Create an air intake on the "main exchanger" flow nozzle (open the safety valve).

  • Page 50: Verification Of Ignition And Ionisation Electrodes

    VARMAX - Installation, Use and Maintenance The air filter 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. Models 120 to 320: - Remove the used filter matting (no tool required).

  • Page 51: Siphon Cleaning

    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-# figure 39 - Geometry Re-assemble the electrode block(s). Tightening torque of the block fixing screws = 2.5 N.m. 7.5. Siphon cleaning Check the siphon and clean if necessary. The siphon must be located between the main exchanger and the condenser on the right-hand Siphon...

  • Page 52: Checking Combustion Quality

    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 Flue-gas sample stick into the flue outlet (see diagram opposite). point The boiler's starting temperature must be above 70°C. Do not forget to re-position the stopper on the orifice from where the sample is taken afterwards.

  • Page 53: Setting The Gas Valve

    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 qualified WARNING: professional. The valve must be adjusted with the boiler working at maximum and minimum pressure. To do this, use the operating "Manual operating" mode (see § 3.3.4 of the NAVISTEM B3000 boiler command table instructions), which makes it possible to switch directly to the minimum or maximum value (0% or 100%).
  • Page 54 VARMAX - Installation, Use and Maintenance 7.8.2. For models 180 to 600 The measurements for adjusting the valve Gas flow R2 offset must be made on the Pamont pressure tap adjustment regulator (see figure opposite). screw (injector) R1 (under cover) Hex key Before starting the burner, on the gas valve, preset 3 mm the gas flow by acting on the gas flow adjustment screw R1 according to the values given in the...
  • Page 55 VARMAX - Installation, Use and Maintenance Air relay pipe connection points (Models 180 and 225) Air relay pipe connection points (Models 275 and 320) blue = "-" Air relay pipe connection points (Models 390 to 600) 14.09.2020 55 / 156...

  • Page 56: Gas Filter Cleaning

    - Clean the gas filter ONLY with a blower. - Refit the filter and tighten the 4 M5 screws (tightening torque = 5 N.m). screws (x4) screws Gas filter (x4) Gas filter U0503716-# U0503711-# figure 47 - Gas filter on VARMAX 180 to 600 figure 46 - Gas filter on VARMAX 120 and 140 WARNING: Check gas-tightness after refitting. 00BNO9168-I (U0606551) 56 / 156...

  • Page 57: Cleaning Exchangers And Changing Seals

    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. 6 screws - Repeat for the other 2 service doors.
  • Page 58 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 figure 46). groove seal U0502445-# figure 50 - Changing door seals Refitting: - Insert the baffles under the wire spring between wire spring the top part of the exchanger tubes (see detail).

  • Page 59: Cleaning The Burner And Changing The Seals

    VARMAX - Installation, Use and Maintenance 7.11. Cleaning the burner and changing the seals Models 120 to 450 : Models 525 to 600 : removable part removable parts 00U06609560-A U0502250-# figure 52 - Removable upper doors To facilitate access to the spool piece and then the gas tube, part of the upper door is removable.(see chapter 4.8). Removing the burner tube: spool piece - Remove the 2 electrode blocks before removing cover...
  • Page 60 VARMAX - Installation, Use and Maintenance - Rotate the tool anticlockwise to unlock the ramp. Plastic valve Unlocked Locked U0516842-# figure 55 - 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.
  • Page 61 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. Refitting: - Put the burner tube into the spool piece (be careful not to rub the metal mesh on the spool piece).

  • Page 62: End-Of-Life Cycle Of The Apparatus

    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. b) For more information on waste disposal/management, contact the Local Authority responsible for waste management or the point of sales where the product was purchased 00BNO9168-I (U0606551) 62 / 156...

  • Page 63: Hydraulic Diagrams And Settings

    VARMAX - Installation, Use and Maintenance 9. HYDRAULIC DIAGRAMS AND SETTINGS 9.1. Selection flow diagram Page 66 Page 81 Page 81 Page 66 Page 70 Page 76 Page 70 Page 84 Page 89 14.09.2020 63 / 156...
  • Page 64 VARMAX - Installation, Use and Maintenance Page 93 Page 107 Page 107 Page 93 Page <?> Page 99 Page 113 Page 113 00BNO9168-I (U0606551) 64 / 156...

  • Page 65: Symbols Used In The Diagrams

    VARMAX - Installation, Use and Maintenance 9.2. Symbols used in the diagrams Symbol Function Symbol Function Open isolating valve Balancing valve Motorised 2 channel valve Motorised 3 channel valve Filter Non-return valve Burner control Pump Sediment well Drain valve External sensor Temperature sensor 9.3.

  • Page 66: Single Boiler

    VARMAX - Installation, Use and Maintenance Diagrams Single boiler VX100 1 direct heating network or existing non-communicative VX101 secondary system page 1 / 4 A. MAIN AND ALTERNATIVE HYDRAULIC DIAGRAMS hydraulic pack supply limit (outside Switzerland) figure 57 - Diagram VX100 NON-COMMUNICATING REGULATOR hydraulic pack supply limit (outside Switzerland)
  • Page 67 VARMAX - Installation, Use and Maintenance Diagrams: VX100 / VX101 page 2 / 4 B. NECESSARY ADJUSTMENT ACCESSORY Appliance Quantity Order No. reference External sensor kit QAC 34 059260 C. CUSTOMER ELECTRICAL CONNECTION Diagram VX100: Circulation pump on Alarm relay direct circuit Q2 N L3 L3 L...
  • Page 68 VARMAX - Installation, Use and Maintenance Diagrams: VX100 / VX101 page 3 / 4 Line No. Value • Heating circuit 1 menu Set the comfort setting Comfort setting temperature (710) - - - Heating curve slope (720) - - - Set the curve slope •...
  • Page 69 VARMAX - Installation, Use and Maintenance Diagrams: VX100 / VX101 page 4 / 4 Line No. Value • Configuration menu Frost protection plant (6120) Activate the heating circuits' frost protection mode AUTO • Switch the heating mode to automatic Maintenance optimisation: It is possible to generate a maintenance message without harming the boiler.

  • Page 70: Regulated Networks With Or Without Dhw Production

    VARMAX - Installation, Use and Maintenance Diagrams Single boiler VX102 3 regulated networks with or without DHW production VX112 page 1 / 6 A. MAIN AND ALTERNATIVE HYDRAULIC DIAGRAMS hydraulic pack supply limit Y11/ Y5/Y6 (outside Switzerland) Y1/Y2 figure 59 - Diagram VX102 hydraulic pack supply limit Y11/ Y1/Y2...
  • Page 71 VARMAX - Installation, Use and Maintenance Diagrams: VX102 / VX112 page 2 / 6 B. NECESSARY ADJUSTMENT ACCESSORIES Appliance Quantity Order No. reference Extension module kit (delivered with a AVS 75 059751 QAD 36 network sensor) External sensor kit QAC 34 059260 Ambient sensor kit (diagram VX102) QAA 75...
  • Page 72 VARMAX - Installation, Use and Maintenance Diagrams: VX102 / VX112 page 3 / 6 Module 1 QX21 Mixing valve for heating circuit No. 1 Y1/Y2 Flow sensor for regulated circuit BX21 QX22 AVS75 BX22 Circulator for heating circuit No. 1 Q2 QX23 Module 2 QX21...
  • Page 73 VARMAX - Installation, Use and Maintenance Diagrams: VX102 / VX112 page 4 / 6 Line No. Value Diagram VX112 only: Input function H1 (5950) Circulation circuit Define a low level demand 1 Install a shunt on H1 OR reverse Type of contact (5951) Rest contact the direction of contact Output via relay QX2 (5891)
  • Page 74 VARMAX - Installation, Use and Maintenance Diagrams: VX102 / VX112 page 5 / 6 E. ELECTRICAL AND HYDRAULIC VALIDATION Line No. Value • Input/output test menu Check the outputs Relay test (7700) Relay output QX1 Alarm relay Relay test (7700) Relay output QX All relays of extension modules Reset outputs...
  • Page 75 VARMAX - Installation, Use and Maintenance Diagrams: VX102 / VX112 page 6 / 6 Line No. Value • Configuration menu Frost protection plant (6120) Activate the heating circuits' frost protection mode AUTO • Switch the heating mode to automatic Optimisation of DHW: Line No.

  • Page 76: Network Regulated By A 3-Channel Valve, And Dhw Production

    VARMAX - Installation, Use and Maintenance Diagram Single boiler VX110 1 network regulated by a 3-channel valve, and DHW production page 1 / 5 A. HYDRAULIC DIAGRAM hydraulic pack supply limit (outside Switzerland) Y1/Y2 figure 61 - VX110 diagram B. NECESSARY ADJUSTMENT ACCESSORIES Appliance Quantity Order No.
  • Page 77 VARMAX - Installation, Use and Maintenance Diagram VX110 page 2 / 5 C. CUSTOMER ELECTRICAL CONNECTION Alarm circulator relay N L3 L3 L Mains supply 230 VAC 50 Hz DHW sensor B3 External sensor B9 If an external management system (e.g. PLC) or a command pump (boiler,...
  • Page 78 VARMAX - Installation, Use and Maintenance Diagram VX110 page 3 / 5 Line No. Value • Time and date menu Set the time Time / minute (1) HH.MM Day / month (2) DD.MM Set the date Year (3) YYYY Set the year •...
  • Page 79 VARMAX - Installation, Use and Maintenance Diagram VX110 page 4 / 5 Line No. Value Relay test (7700) No test Reset outputs...module... Check sensor values External T° B9 (7730) in °C External sensor B9 DHW temperature B3/B38 (7750) in °C DHW sensor B3 Temperature sensor BX21 module 1 (7830) in °C...
  • Page 80 VARMAX - Installation, Use and Maintenance Diagram VX110 page 5 / 5 Optimisation of DHW: Line No. Value • Domestic hot water menu Reduced setting (1612) - - - Set the reduced setting DHW release (1620) Time programme 4/ Set the DHW release mode •...

  • Page 81: Secondary Networks With Existing Regulation Communicating By Lpb Bus Or 0

    VARMAX - Installation, Use and Maintenance Single boiler Diagram VX111 Secondary networks with existing regulation communicating by LPB bus or 0...10V page 1 / 3 A. HYDRAULIC DIAGRAM COMMUNICATING REGULATOR figure 62 - Diagram VX111 B. NECESSARY ADJUSTMENT ACCESSORY Appliance Quantity Order No.
  • Page 82 VARMAX - Installation, Use and Maintenance Diagram VX111 page 2 / 3 C. CUSTOMER ELECTRICAL CONNECTION Alarm relay N L3 L3 L Mains supply 230 VAC 50 Hz Analogue input 0...10V LPB bus If an external management MB DB system (e.g.
  • Page 83 VARMAX - Installation, Use and Maintenance Diagram VX111 page 3 / 3 Warning the boiler considers a heat demand for a voltage H1> 0.2 V and a resulting setpoint> 6 ° C *. The boiler no longer considers a heat demand for a voltage H1 <0.2V or a resulting setpoint <4 ° C *. In this second case, the boiler isolation valve will close.

  • Page 84: Network Regulated By A 3-Channel Valve, 1 Direct Circuit With 60°C Low Level

    VARMAX - Installation, Use and Maintenance Single boiler Diagram VX113 1 network regulated by a 3-channel valve, 1 direct circuit with 60°C low level page 1 / 5 A. HYDRAULIC DIAGRAM DIRECT CIRCUIT WITH LOW LEVEL FOR FLOW AT 60°C Y1/Y2 figure 63 - Diagram VX113 B.
  • Page 85 VARMAX - Installation, Use and Maintenance Diagram VX113 page 2 / 5 C. CUSTOMER ELECTRICAL CONNECTION Direct Alarm circulation relay pump Q6 N L3 L3 L Mains supply 230 VAC 50 Hz External sensor B9 If an external management system (e.g.
  • Page 86 VARMAX - Installation, Use and Maintenance Diagram VX113 page 3 / 5 Line No. Value • Time and date menu Time / minute (1) HH.MM Set the time Day / month (2) DD.MM Set the date Year (3) YYYY Set the year •...
  • Page 87 VARMAX - Installation, Use and Maintenance Diagram VX113 page 4 / 5 Line No. Value Relay test (7700) Relay output QX23 HC pump module 1 Relay test (7700) No test Reset outputs Check sensor values External T° B9 (7730) in °C External sensor B9 Flow sensor B1 Temperature sensor BX21 module 1 (7830)
  • Page 88 VARMAX - Installation, Use and Maintenance Diagram VX113 page 4 / 5 Maintenance optimisation: It is possible to generate a maintenance message without harming the boiler. This maintenance message may appear when the 3 following meters have elapsed: • Time since last maintenance (or commissioning): set parameter 7044 to 12 months •...

  • Page 89: Network Regulated By A Three-Channel Valve, 1 Circulation Circuit With Constant Temperature And Throughput

    VARMAX - Installation, Use and Maintenance Single boiler Diagram VX120 1 network regulated by a three-channel valve, 1 circulation circuit with constant temperature and throughput page 1 / 4 A. HYDRAULIC DIAGRAM DIRECT CIRCUIT WITH CONSTANT TEMPERATURE AND THROUGHPUT Y1/Y2 figure 64 - Diagram VX120 B.
  • Page 90 VARMAX - Installation, Use and Maintenance Diagram VX120 page 2 / 4 C. CUSTOMER ELECTRICAL CONNECTION Direct Alarm circulation relay pump Q15 N L3 L3 L Mains supply 230 VAC 50 Hz External sensor B9 Shunt to install If an external management system (e.g.
  • Page 91 VARMAX - Installation, Use and Maintenance Diagram VX120 page 3 / 4 Line No. Value • Time and date menu Time / minute (1) HH.MM Set the time Day / month (2) DD.MM Set the date Year (3) YYYY Set the year •...
  • Page 92 VARMAX - Installation, Use and Maintenance Diagram VX120 page 4 / 4 Line No. Value Check sensor values External sensor B9 External T° B9 (7730) in °C Temperature sensor BX21 module 1 (7830) in °C Flow sensor B1 F. OPTIMISATION OF SETTINGS Line No.

  • Page 93: Boilers In A Cascade Configuration

    VARMAX - Installation, Use and Maintenance Diagram Boilers in a cascade configuration VX200 1 direct network, no communication with the secondary VX201 network page 1 / 6 A. MAIN AND ALTERNATIVE HYDRAULIC DIAGRAMS hydraulic pack supply limit (outside Switzerland) Q1.1 Q1.2 figure 65 - Diagram VX200 NON-COMMUNICATING REGULATOR hydraulic pack supply limit...
  • Page 94 VARMAX - Installation, Use and Maintenance Diagrams: VX200 / VX201 page 2 / 6 B. NECESSARY ADJUSTMENT ACCESSORIES Appliance Quantity Order No. reference Communication kit OCI 345 059752 059261 (QAZ 36) Network sensor kit QAx 36 059592 (QAD 36) External sensor kit QAC 34 059260 C.
  • Page 95 VARMAX - Installation, Use and Maintenance Diagrams: VX200 / VX201 page 3 / 6 Insulating Alarm valve Q1.2 relay N L3 L3 L Mains supply 230 VAC 50 Hz LPB bus MB DB D. SPECIFIC START-UP PROCEDURE " Fit the accessories and make their electrical connections. "...
  • Page 96 VARMAX - Installation, Use and Maintenance Diagrams: VX200 / VX201 page 4 / 6 Line No. Value • Configure as master in the cascade: LPB network menu Appliance address (6600) Appliance number Segment number Segment address (6601) Bus supply function (6604) Automatic Set the bus power supply.
  • Page 97 VARMAX - Installation, Use and Maintenance Diagrams: VX200 / VX201 page 5 / 6 • Input/output test menu Check the outputs Relay test (7700) Relay output QX1 Alarm relay Relay test (7700) Relay output QX2 Pump Q2 (diagram VX200) Relay test (7700) Relay output QX3 Insulating valve Q1.1 Relay test (7700)
  • Page 98 VARMAX - Installation, Use and Maintenance Diagrams: VX200 / VX201 page 6 / 6 Optimisation of the cascade: The cascade may be optimised as required with the parameters of the Cascade menu. Refer to the LMS boiler command table instructions for more details. Maintenance optimisation: It is possible to generate a maintenance message without harming the boiler.

  • Page 99: Network Regulated By A Three-Channel Valve, Dhw Production Or 1 Direct Circuit With Constant Temperature And Throughput

    VARMAX - Installation, Use and Maintenance Boilers in a cascade configuration Diagram VX210 1 network regulated by a three-channel valve, DHW VX220 production or 1 direct circuit with constant temperature and throughput page 1 / 8 A. HYDRAULIC DIAGRAM hydraulic pack supply limit (outside Switzerland) Q1.1 Q1.2...
  • Page 100 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 2 / 8 B. NECESSARY ADJUSTMENT ACCESSORIES Appliance Quantity Order No. reference Extension module kit (delivered with a AVS 75 059751 QAD 36 network sensor) Communication kit OCI 345 059752 059261 (QAZ 36) Network sensor kit...
  • Page 101 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 3 / 8 Module 1 QX21 Mixing valve for heating circuit No. 1 Y1/Y2 Flow sensor for regulated circuit BX21 QX22 AVS75 BX22 Circulator for heating circuit No. 1 Q2 QX23 Boiler No.
  • Page 102 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 4 / 8 D. SPECIFIC START-UP PROCEDURE " Fit the accessories and make their electrical connections. Ensure the switches on extension module AVS75 are correctly WARNING: configured. " Start up the boiler alone. "...
  • Page 103 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 5 / 8 Line No. Value Diagram VX210 only: • Domestic hot water menu Comfort setpoint (1610) - - - Set the comfort setting • Activate DHW mode Diagram VX220 only: •...
  • Page 104 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 6 / 8 Line No. Value • Input/output test menu Check the outputs Alarm relay Relay test (7700) Relay output QX1 Relay test (7700) Relay output QX2 DHW pump Q3 (diagram VX210) Relay test (7700) Relay output QX2 Constant circuit pump Q15 (diagram VX220)
  • Page 105 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 7 / 8 F. OPTIMISATION OF SETTINGS Optimisation of heating circuit: • Heating circuit 1 menu Set the reduced setting Reduced temperature setting (712) - - - • HC1 time programme menu Preselection (500) - - - Preselection...
  • Page 106 VARMAX - Installation, Use and Maintenance Diagrams: VX210 / VX220 page 8 / 8 Optimisation of the cascade: The cascade may be optimised as required with the parameters of the Cascade menu. Refer to the LMS boiler command table instructions for more details. Maintenance optimisation: It is possible to generate a maintenance message without harming the boiler.

  • Page 107: Secondary Networks Regulated By External Regulated Communicating By Lpb Bus Or 0

    VARMAX - Installation, Use and Maintenance Boilers in a cascade configuration Diagram VX211 Secondary networks regulated by external regulated communicating by LPB bus or 0...10V page 1 / 6 A. HYDRAULIC DIAGRAM COMMUNICATING REGULATOR 0/10 V SIGNAL TO NAVISTEM B3000 or LPB BUS TO OCI345 hydraulic pack supply limit (outside Switzerland)
  • Page 108 VARMAX - Installation, Use and Maintenance Diagram VX211 page 2 / 6 C. CUSTOMER ELECTRICAL CONNECTION Boiler No. 1: If the insulating valve is not fitted with an automatic reset, reconnect the INFORMATION: Q1.1 insulating valve closing contact on Y2. Insulating valve Q1.1 Alarm relay N L3 L3 L Mains supply 230 VAC 50 Hz Flow sensor in cascade B10...
  • Page 109 VARMAX - Installation, Use and Maintenance Diagram VX211 page 3 / 6 Insulating Alarm relay valve Q1.2 N L3 L3 L Mains supply 230 VAC 50 Hz LPB bus MB DB D. SPECIFIC START-UP PROCEDURE " Fit the accessories and make their electrical connections. "...
  • Page 110 VARMAX - Installation, Use and Maintenance Diagram VX211 page 4 / 6 Line No. Value Function value H1 (5954) Voltage value 2 H1 (5955) 10.0 Function value 2 H1 (5956) 1000 (for 10 V = 100 °C equivalence) Warning the boiler considers a heat demand for a voltage H1> 0.2 V and a resulting setpoint> 6 ° C *. The boiler no longer considers a heat demand for a voltage H1 <0.2V or a resulting setpoint <4 °...
  • Page 111 VARMAX - Installation, Use and Maintenance Diagram VX211 page 5 / 6 E. ELECTRICAL AND HYDRAULIC VALIDATION On boiler No. 1: master • Cascade diagnostic menu Check that all boilers are present in the cascade Status of generator 1 (8100) Released released Status of generator 2 (8101)
  • Page 112 VARMAX - Installation, Use and Maintenance Diagram VX211 page 6 / 6 On boiler No. 2: slave • Input/output test menu Check the outputs Relay test (7700) Relay output QX1 Alarm relay Relay test (7700) Relay output QX3 Insulating valve Q1.2 Relay test (7700) No test Reset outputs...

  • Page 113: Or 4 Networks Regulated By A Three-Channel Valve With Or Without Dhw Production

    VARMAX - Installation, Use and Maintenance Diagram Boilers in a cascade configuration VX202 3 or 4 networks regulated by a three-channel valve with or VX212 without DHW production page 1 / 9 A. MAIN AND ALTERNATIVE HYDRAULIC DIAGRAMS B1.2 Q2.2 hydraulic pack supply limit Y1/Y2 (outside Switzerland)
  • Page 114 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 2 / 9 B. NECESSARY ADJUSTMENT ACCESSORIES Appliance Quantity Order No. reference Extension module kit (delivered with a 3 (4) AVS 75 059751 QAD 36 network sensor) Communication kit OCI 345 059752 059261 (QAZ 36)
  • Page 115 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 3 / 9 Module 1 QX21 Mixing valve for heating circuit No. 1 Y1/Y2 Flow sensor for regulated circuit BX21 QX22 AVS75 BX22 Circulator for heating circuit No. 1 Q2 QX23 Module 2 QX21...
  • Page 116 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 4 / 9 Insulating Alarm valve Q1.2 relay N L3 L3 L Mains supply 230 VAC 50 Hz LPB bus MB DB Module 1 QX21 Mixing valve for heating circuit No.
  • Page 117 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 5 / 9 On boiler No. 1: master Line No. Value • Time and date menu Time / minute (1) HH.MM Set the time Day / month (2) DD.MM Set the date Year (3) YYYY...
  • Page 118 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 6 / 9 Line No. Value Diagram VX212 only: • Circulation circuit 1 menu Set the starting value to use in Starting value in case of circuit demand 60°C (depends on (1859) Rubis setting) the event of a demand from the...
  • Page 119 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 7 / 9 E. ELECTRICAL AND HYDRAULIC VALIDATION On boiler No. 1: master Line No. Value • Cascade diagnostic menu Check that all boilers are present in the cascade Status of generator 1 (8100) Released released...
  • Page 120 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 8 / 9 Line No. Value Check the values of the sensors (if 4th heating circuit present) Flow sensor B1.2 Temperature sensor BX21 module 1 (7830) in °C F. OPTIMISATION OF SETTINGS On master and slave boilers Optimisation of the heating circuits: •...
  • Page 121 VARMAX - Installation, Use and Maintenance Diagrams: VX202 / VX212 page 9 / 9 Maintenance optimisation: It is possible to generate a maintenance message without harming the boiler. This maintenance message may appear when the 3 following meters have elapsed: •...

  • Page 122: Specific Configurations When Connecting To 0-10V Outputs (Ux)

    VARMAX - Installation, Use and Maintenance 9.4. Specific configurations when connecting to 0-10V outputs (Ux) 9.4.1. Transfer of the "burner power" image to PLC Pmini Pmaxi (parameter 2331) (parameter 2330) Burner modulation 0V 0,5V 1V 0...0,5 Vcc The boiler status inhibits starting or locking 0,5...1 Vcc The boiler is waiting to start or waiting for pre- or post- ventilation 1...10 Vcc The boiler is working with its flame lit between the min. and max. power...
  • Page 123 VARMAX - Installation, Use and Maintenance 9.4.3. Controlling a Q2, Q6 or Q20 heating circuit pump D. SPECIFIC START-UP PROCEDURE Line No. Value • Configuration menu Function output Ux (6078/6089) Heat circuit pump Case of a 0-10V command Q2, Q6 or HC1 Q2 Q20 heating pump. Configure the heating pump.
  • Page 124 VARMAX - Installation, Use and Maintenance Line No. Value • DHW storage tank menu Set these 3 parameters to the same value Pump speed min (5101) between 0 and 100 % Pump speed max (5102) between 0 and 100 % Starting speed charg pump (5108) between 0 and 100 % E.
  • Page 125 VARMAX - Installation, Use and Maintenance 14.09.2020 125 / 156...

  • Page 126: List Of Spare Parts

    VARMAX - Installation, Use and Maintenance 10. LIST OF SPARE PARTS 021* 021* 022* (x2) 022* 022* (x2) (x2) 026* 020 = 021 + 022 + 026 + 031 + 032 * Insulation: black side out U0505794-A figure 72 - Cladding / Insulation 00BNO9168-I (U0606551) 126 / 156...
  • Page 127 VARMAX - Installation, Use and Maintenance 039 035 00U06835880-A figure 73 - Specific casing 525 and 600 kW REF. FOR MODELS Mark NAME 120 & 180 & 275 & 390 & 525 & Cladding Front left-hand door 76092 76093 76094 76095 79183 Front right-hand door...
  • Page 128 VARMAX - Installation, Use and Maintenance U0505839-# / U0505841-# figure 74 - Control panel 00BNO9168-I (U0606551) 128 / 156...
  • Page 129 VARMAX - Installation, Use and Maintenance REF. FOR MODELS Mark NAME 120 & 180 & 275 & 390 & Control panel Platform with LMS configured 120 : 180 : 275 : 380 : 525 : 78861 78863 78865 78867 79226 140 : 225 : 320 : 450 : 600 :...
  • Page 130 VARMAX - Installation, Use and Maintenance IIIa Flow direction in circulation pump Version 4 connections with trap U0505837-A figure 75 - Body 00BNO9168-I (U0606551) 130 / 156...
  • Page 131 VARMAX - Installation, Use and Maintenance Removable taps and nozzle IIIb 221 227 REF. FOR MODELS Mark NAME 120 & 180 & 275 & 390 & 525 & Body 76015 76016 76017 76018 Exchanger door with seal Exchanger door seals (x3) 76019 76020 76021 76022 Drain cock...
  • Page 132 VARMAX - Installation, Use and Maintenance Mixer position in venturi (reference 301) models 180 & 225 models 390 to 600 314 = 307 + 311 + 402 ( ) + A + B U0505836-# figure 76 - Burner 00BNO9168-I (U0606551) 132 / 156...
  • Page 133 VARMAX - Installation, Use and Maintenance REF. FOR MODELS Mark NAME 120 & 180 & 275 & 390 & 525 & Burner Venturi with mixer 72411 76151 71859 76152 72693 76264 60438 71209 72692 79212 Inspection aperture with fastening screws 76048 Spool piece flue-gas anti-return valve 76049...
  • Page 134 VARMAX - Installation, Use and Maintenance Models 120 and 140 (with Propane) Models 180 to 600 180, 225, 390 and 450 (G20) 180 to 320 (G31) figure 77 - Gas line 00BNO9168-I (U0606551) 134 / 156...
  • Page 135 VARMAX - Installation, Use and Maintenance G20 : 405n G31 : 405p Diaphragm orientation: engraving (B...) towards the gas valve B..= Modèle 120 & 140 180 & 225 275 & 320 390 & 450 Gas valve side B2 GN B4 GN B1 P B2 P...
  • Page 136 VARMAX - Installation, Use and Maintenance Models: 120 & 140 Models: 180 & 225 Models: 275 & 320 Models: 390 to 600 U0505836-# figure 79 - Air inlet duck 00BNO9168-I (U0606551) 136 / 156...
  • Page 137 VARMAX - Installation, Use and Maintenance REF. FOR MODELS Mark NAME 120 & 180 & 275 & 390 & 525 & Acoustic air intake 76846 Air inlet duct 76845 76066 78328 78329 Pressure transfer pipes 78332 78333 78334 78335 Air pressostat 78330 78331 79214...
  • Page 138 VARMAX - Installation, Use and Maintenance VIII (180  600) (120-140) figure 80 - Accessories REF. FOR MODELS Mark NAME 120 & 180 & 275 & 380 & 525 & Accessories Cork flange 76154 78577 79201 Complete box of accessories (feet, sole, filters, ...) 76268 76269 76270 Levelling feet with sole (x4) 76153 Filter matting for air filter 76543...

  • Page 139: Table Of Customer Settings

    VARMAX - Installation, Use and Maintenance 11. TABLE OF CUSTOMER SETTINGS Boiler: ..........site: ..........Serial No.: ..................Please refer to the parameter modifications in this document! Note: The "access" column indicates the level of accessibility to the information or programme (E for end user, C for commissioning and S for Specialist). The Commissioning level of service integrates the End User level.
  • Page 140 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting First period stop time 22:00 Second period start time 24:00 Second period stop time 24:00 Second period start time 24:00 Second period stop time 24:00 Default values Time program 4 / DHW Preselection Mo-Su...
  • Page 141 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting Flow temp setpoint min 8 °C Flow temp setpoint max 80 °C Flow temp setpoint room stat 65 °C Delay heat request Room influence 20 % Room temp limitation 1 °C Heating limit room controller --- °C...
  • Page 142 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 1046 Delay heat request 1050 Room influence 20 % 1060 Room temp limitation 1 °C 1061 Heating limit room controller --- °C 1070 Boost heating 3 °C 1080 Quick setback 1090...
  • Page 143 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 1361 Heating limit room controller --- °C 1370 Boost heating 3 °C 1380 Quick setback 1390 Optimum start control max 00:00 1391 Optimum stop control max 00:00 1400 Reduced setp increase start -5 °C...
  • Page 144 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting Consumer circuit 1 1859 Flow temp setp cons request 60 °C 1875 Excess heat draw 1878 With buffer 1880 With prim contr/system pump Consumer circuit 2 1909 Flow temp setp cons request 60 °C 1925...
  • Page 145 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 2470 Delay heat req special op 2503 Parameter --- s 2630 Auto deaeration procedure 2655 ON time deaeration 10 s 2656 OFF time deaeration 2657 Number of repetitions 2662 Deaeration time heat circuit 10 min...
  • Page 146 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 5575 On time min dT contr 1 5577 Pump/valve kick K21 5580 Temp diff on dT contr 2 20 °C 5581 Temp diff off dT contr 2 10 °C 5582 On temp min dT contr 2...
  • Page 147 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 6034 Relay output QX22 module 2 None 6035 Relay output QX23 module 2 None 6036 Relay output QX21 module 3 None 6037 Relay output QX22 module 3 None 6038 Relay output QX23 module 3...
  • Page 148 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 6234 Boiler type 1 : VARMAX LPB system 6600 Device address 6601 Segment address 6604 Bus power supply function Automatically 6605 Bus power supply state 6610 Display system messages 6611 Syst messages alarm relay 6612...
  • Page 149 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 6915 SW diagnostic code 12 6920 History 13 00:00 6925 SW diagnostic code 13 6930 History 14 00:00 6935 SW diagnostic code 14 6940 History 15 00:00 6945 SW diagnostic code 15 6950...
  • Page 150 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 7834 Sensor temp BX21 module 3 0 °C 7835 Sensor temp BX22 module 3 0 °C 7840 Voltage signal H1 7841 Contact state H1 Open 7845 Voltage signal H2 module 1 7846 Contact state H2 module 1 Open...
  • Page 151 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 8118 Priority source 10 8119 State source 10 Missing 8120 Priority source 11 8121 State source 11 Missing 8122 Priority source 12 8123 State source 12 Missing 8124 Priority source 13 8125...
  • Page 152 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 8508 Speed solar pump swi pool 8510 Collector temp 1 0 °C 8511 Collector temp 1 max -28 °C 8512 Collector temp 1 min 350 °C 8513 dt collector 1/DHW 0 °C 8514...
  • Page 153 VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 8820 DHW pump 8825 Speed DHW pump 8826 Speed DHW interm circ pump 8827 Speed inst DHW heater pump 8830 DHW temp 1 0 °C 8831 DHW temp setpoint 55 °C 8832 DHW temp 2...

  • Page 154: Annex A

    VARMAX - Installation, Use and Maintenance Line Programme Access Default value Customer setting 9530 Required speed HF max Depending on boiler 9650 Chimney drying 9651 Req speed chimney drying 500 tr/min 9652 Duration chimney drying 10 min 12. ANNEX A Data on products ≤...
  • Page 155 VARMAX - Installation, Use and Maintenance 14.09.2020 155 / 156...
  • Page 156 Wessex House, New Fields Business Park, Stinsford Road, Poole, Dorset, BH17 0NF Telephone: 01202 662500 Fax: 01202 662522 Email: aftersales@hamworthy-heating.com Website: www.hamworthy-heating.com Hamworthy reserves the right to make changes and improvements which may necessitate alteration to the specification without prior notice.

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