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FläktGroup MULTIMAXX HG Series Operation Manual

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MULTIMAXX
HG
OPERATION MANUAL

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Summary of Contents for FläktGroup MULTIMAXX HG Series

  • Page 1 ® MULTIMAXX OPERATION MANUAL...

  • Page 2: Unit Type Code

    MultiMAXX HG Unit Type Code Unit Type Code MultiMAXX Control Accessories 4 . U B . A O S H G 0 . 0 0 0 M X . X Model size Control panel, Control board Model size 2 = Model size 2 0.000M Control panel Multi Model size 2...

  • Page 3: Table Of Contents

    MultiMAXX HG Table of Contents Unit Type Code ........3 Safety and User Instructions .
  • Page 4 MultiMAXX HG Table of Contents Operation ......... . . 44 General Operation .

  • Page 5: Safety And User Instructions

    Safety and User Instructions MultiMAXX HG Safety and User Instructions This is an original operation manual verified by the manufacturer. MultiMAXX HG Air Heaters are developed and manufactured according to the current state of technology and the recognized safety-specific standards and guidelines and correspond to the EU Directive of Machinery.

  • Page 6: Safety-Conscious Work Procedures

    MultiMAXX HG Safety and User Instructions PERSONAL INJURY! This section specifies procedures and precautions for preventing personal injury. DANGER DUE TO OVERHEAD LOADS! This symbol warns about personal injury and damage caused by overhead loads and suspended heavy objects. DANGER OF HOT SURFACES! This section specifies procedures and precautions for preventing personal injury resulting from contact with hot surfaces.

  • Page 7: Proper Use

    Safety and User Instructions MultiMAXX HG Proper use The MultiMAXX HG unit heaters are used in industrial, warehouse, sales and exhibition rooms, i.e. in areas which are protected against the influences of weather (including assembly, temporary storage, and maintenance work). They serve for heating, venti- lation and filtering of the room-/outside air.

  • Page 8: Specifications

    MultiMAXX HG Specifications Specifications Unit configuration and packaged content Fig. 2-1: Technical Description MultiMAXX HG Pos. 1a: Wide-blade fan (optional) Pos. 7: Flue pipe fitting of air intake Pos. 8: Flue gas fitting for smoke exhaust Pos. 1b: Sickle-blade fan (optional) Pos.

  • Page 9: Specification Of Material

    Specifications MultiMAXX HG Various unit parts indicated in Fig. 2-1 are specified in detail as follows. Wide-blade fan (Pos. 1a) Axial fan with external rotor motor and integrated contact protection grille, aluminum wide blade, balanced by the manufacturer, maintenance-free with moisture proof motor wired ready for connection in the terminal box.

  • Page 10: Functional Description Of The Unit

    MultiMAXX HG Specifications Functional description of the unit Die gas-unit heaters MultiMAXX HG are produced in 2 model sizes with 2 capacity sizes each for wall or ceiling mounting. The basis of the unit is formed by a heat exchanger with a robust combustion chamber and integrated retractions, assuring an optimal heat transfer between the combustion chamber and the air to be warmed.

  • Page 11: Unit Dimensions And Minimum Mounting Space

    Specifications MultiMAXX HG Unit dimensions and minimum mounting space Minimum mounting space for installation and maintenance Connection of the unit to the gas mains by means of accessory article # ZHG.00xx with internal screw thread R 3/4" (without acces- sory external screw thread R 1/2"- within the unit).

  • Page 12: Specifications

    MultiMAXX HG Specifications Specifications Burner Sound Air throw Air throw Suspension Weight Type Thermal Speed Air flow Fan max. Fan max. voltage power (louvre B) (louvre U, height with burner output rate voltage power current (louvre C, D) without range consumption consumption louvre...

  • Page 13: Specification For The Ecodesign Directive Passed By The Eu Commission 2016/2281

    Specifications MultiMAXX HG Specification for the Ecodesign Directive passed by the EU Commission 2016/2281 The values presented in the Tab. 2-5 below are provided to ensure the implementation of the EU Directive 2016/2281. This Directive sets the framework for the requirements to the environmentally-friendly design of energy-related products such as air heaters, air coolers, units for air cooling in industrial processes with high operating temperature- and fan coil units.
  • Page 14 MultiMAXX HG Specifications Air side accessories The following accessory items can be delivered for the MultiMAXX HG Unit Heater: Description Unit Type Design Code Mixed-air module, type 1 ZH#.200# Outside air and recirculating air 90° displaced; galvanized metal sheet, Al profile fins Mixed-air module, type 2 ZH#.210#...
  • Page 15 Specifications MultiMAXX HG Accessories - exhaust gas lines, flue gas pipework The following accessory items can be delivered for the unit heater MultiMAXX HG: Description Type Dimensions - configuration Pipe with sleeve Diameter 80 mm, length 0.22 m, Al ZHG.3780 Pipe with sleeve Diameter 100 mm, length 0.22 m, Al ZHG.3710...

  • Page 16: Shipping And Storage

    MultiMAXX HG Shipping and Storage Shipping and Storage Shipping The notices of the manufacturer must be taken into account for shipping and storage. NOTE! • After unpacking the heating unit, the shipment must be examined for correctness and completeness on the basis of the delivery note. •...

  • Page 17: Storage

    Shipping and Storage MultiMAXX HG Storage Protect MultiMAXX HG Air Heaters against moisture, soiling (dust and sand) and sun / radiant heat. Store only in areas protected from weather influences, mildews, rodents, and vibrations. The unit heater or the regulator and other accessories may not be stored or operated in areas with salty fog .

  • Page 18: Mounting

    MultiMAXX HG Mounting Mounting NOTE! When mounting the MultiMAXX HG units, observe the safety regulations and stand- ards valid in the respective countries and the generally recognized rules of technol- ogy. Load-bearing capacity of the installation site NOTE! The installation site must be suited as a durable and vibration-free weight bearer of the unit heater, and be checked by a structural engineer or architect if necessary.

  • Page 19: Wall Mounting

    Mounting MultiMAXX HG Minimum ceiling spacing H (see Fig. 4-1) Provide a minimum distance to ceiling to allow sufficient air circulation and ensure adequate access for maintenance. Model size Spacing H [mm] Max. suspension height The maximum suspension height for the ceiling mounting varies depending on the discharge temperature, lower speed stages and less air volume flow (results from the pressure loss of the accessory or external pressure loss).
  • Page 20 MultiMAXX HG Mounting NOTE! For heating technology reasons, the wall mounting of HVAC equipment should not be too high in order to ensure that the air is also properly mixed at ground level as well. Direction of discharged air flow Set the direction of discharge so as to avoid air draughts in the room.

  • Page 21: Safety Clearance

    Mounting MultiMAXX HG Safety clearance NOTE! When installing a heating unit, observe safety clearances of burnable materials: at least 500 mm from the unit side parts and 1500 mm in the airflow direction and the flue gas pipework. In areas with fire hazards (burnable materials, dusts, liquids, gases and vapors) the distance must be at least 1500 mm in all directions.

  • Page 22: Mounting Examples

    MultiMAXX HG Mounting There may be no wall openings above the exit of the flue gas pipework. Fig. 4-5: Length of the flue gas pipework Unit heating Length of the flue gas Length of the flue gas pipework Unit type Combination (for a unit without suction side capacity...
  • Page 23 Mounting MultiMAXX HG ZH#.5502 ZH#.5100 ZH#.3200 ZH#.200# ZH#.360# ZH#.2500 (possibly ZH#.2600) Fig. 4-7: Wall mounting of the mixed-air unit with coaxial flue gas pipework 4.7.3 Ceiling mounting of a mixed-air unit with coaxial flue gas pipework ZH#.350# ZH#.4900 ZH#.200# ZH#.360# ZH#.2500 (event.ZH#.2600) ZH#.5602...

  • Page 24: Electrical Connection

    MultiMAXX HG Electrical Connection Electrical Connection HAZARDOUS VOLTAGE! The electrical installation may only be carried out by trained electrical workers observing the valid building codes. Switch off the unit heater and the control unit voltage-free before beginning all work. Ensure that the unit is secured against being switched on at an appropriate point of the on-site power supply.

  • Page 25: Electrical Control Box

    Electrical Connection MultiMAXX HG Electrical control box The MultiMAXX HG unit heater is furnished with an electrical control box for Multi operation. The box is mounted on one side of the fan module. Fig. 5-1: Electrical control Pos. 1:Electrical control box for Multi Operation (sheet steel) Connection diagrams The electrical connection of the unit heaters must be carried out according to the valid connection diagrams (Fig.
  • Page 26 MultiMAXX HG Electrical Connection 5.3.1 Control panel OSHG 0.000M (OSHG 0.EC0M) - control for a unit group (Multi Operation) Fig. 5-2: Control panel OSHG 0.000M (OSHG 0.EC0M) For Multi Operation, the electrical control box is mounted on site to the unit heater. Up to 10 units can be controlled with one OSHG 0.000M (OSHG 0.EC0M) Control Panel with a graphic display.
  • Page 27 Electrical Connection MultiMAXX HG 5.3.3 Connection diagram of MultiMAXX HG (fans D, E,Y - 1 x 230V / 50Hz) with OSHG 0.000M (OSHG 0.EC0M) control panel or OSHG 0.RDDO remote control board RESET Burner Heating Fig. 5-4: Connection diagram FläktGroup DC-2011-0141-GB 2018-05/R5 • Subject to modifications...
  • Page 28 MultiMAXX HG Electrical Connection 5.3.4 Connection diagram of MultiMAXX HG (fans A, B, R, Z - 3 x 400V / 50Hz) with OSHG 0.000M (OSHG 0.EC0M) control panel or OSHG 0.RDDO remote control board RESET Burner Heating Fig. 5-5: Connection diagram FläktGroup DC-2011-0141-GB 2018-05/R5 •...
  • Page 29 Electrical Connection MultiMAXX HG Legend about Fig. 5-4 and Fig. 5-5: - Actuator of the mixed-air module / air shutoff flap (ON/OFF, with final position switch with poti or with spring return) - Actuator of the mixed-air module / blocking flap (ON/OFF, with Poti or with spring return) - Differential pressure switch PRIVOD...

  • Page 30: Connection Actuator, Mixed-Air Module, And Blocking Damper

    MultiMAXX HG Electrical Connection Connection actuator, mixed-air module, and blocking damper The connection diagram is on the cover of the respective actuator. Actuator 230 V, open/close Actuator 230 V, open/close + poti ZH#.2##3 ZH#.2##2 Actuator 230 V+ spring return Actuator 230 V, open/close +final position switch ZH#.2##4 ZH#.2##5 Fig.

  • Page 31: Gas Connection

    Gas Connection MultiMAXX HG Gas Connection RISK OF ACCIDENT FROM GAS EXPLOSION! Gas installation may only be carried out by trained gas specialists observing valid building codes. NOTE! For the commissioning of the MultiMAXX HG equipment, the respective security reg- ulations and standards valid in the countries and the generally recognized rules of technology must be observed.

  • Page 32: Commissioning

    MultiMAXX HG Commissioning Commissioning HAZARDOUS VOLTAGE! The MultiMAXX HG unit heater may only be electrically installed by skilled electricians trained for this task who observe all the valid regulations. DANGER OF BURNING! The heat exchanger and the flue-gas venting reach very high temperatures in operation.
  • Page 33 Commissioning MultiMAXX HG The following settings on the burner must also be carried out: – Open the shut-off valve of the gas burner. – Bleed the gas line. Do not vent through the screw on the P1 sleeve (Fig. 7-1, Poz.3)! There is a risk of clogging of the dirt generated during the installation of the gas pipelines into the burner valves and thus the risk of bursting the burner at start! –...
  • Page 34 MultiMAXX HG Commissioning 7.1.2 Burner settings NOTE! The actual setting may only be carried out by specialized or authorized companies. Observe the provisions of this Operation Manual at all times during commissioning. For correct adjustment of the burner it is necessary to use the ESYS - V2208 service software with the communication cable marked DI100001U and the flue gas analyzer.
  • Page 35 Commissioning MultiMAXX HG Fig. 7-2: Adjusting the depth of the V1 and V2 valve bolts Unit type Gas burner Gas type Trimmer Gas burner fan Burner type speed power Orientation Description [kW] setting 2600 4250 START 3600 HG 24 2400 LPG* 4000 START...
  • Page 36 MultiMAXX HG Commissioning Regulation of the heating capacity (setting see Chap. 7.1.4): a ) Room temperature control system: In our example, the desired room temperature Tp is 21°C. If the temperature difference (setpoint / actual temperature) is Tp -1°C (20°C), the heating capacity is reduced to 50% of the set heating output.
  • Page 37 Commissioning MultiMAXX HG NOTE! The changeover switch in the electrical control box HG ##.######.#M# (Multi) must be set accordingly, depending on the unit type or unit assembly with air side accessories (see Fig. 7-3 and Tab. 7-3). OFF(0) - room temperature control system Changeover switch Nr.
  • Page 38 MultiMAXX HG Commissioning Connection of the terminal pins and their combinations Unit number Pins No. 12 Pins No. 11 Pins No. 10 Pins No. 9 Setting the unit addresses Tab. 7-4: NOTE! Addressing (see Tab. 7-4) with switches 9 -12 (see Fig. 7-3) is required on each control board located in the electrical box of the HG ##.######.#M# unit (Multi control).
  • Page 39 Commissioning MultiMAXX HG 7.1.4.4 Setting the air side pressure drop (control according to supply air temperature) Control panel OSHG 0.000M (OSHG 0.EC0M) - Multi Operation (only for mixed-air units) To adjust the pressure drop of the mixing units, see Chap. 8.3 and refer to Fig. 8-3 (see page 48) - Overview of the MENU SETUP see page 46.
  • Page 40 MultiMAXX HG Commissioning 7.1.5 Setting the remote control board OSHG 0.RDDO 7.1.5.1 Setting the changeover switch in the remote control board Remote control board OSHG 0.RDDO Fig. 7-5: Setting the changeover switch NOTE! Depending on the type of unit heating used or the air side accessory unit, the switch settings on the OSHG 0.RDDO remote control board are always required.
  • Page 41 Commissioning MultiMAXX HG 7.1.5.2 Setting the temperature switches on the remote control board Remote control board OSHG 0.RDDO Fig. 7-6: Temperature switch settings NOTE! The setting is only made for exhaled air temperatures (for air supply temperature control). (see Fig. 7-6 and Tab. 7-7) Air exhaust Switch settings Air exhaust...
  • Page 42 MultiMAXX HG Commissioning 7.1.5.4 Error messages on the remote control board Remote control board OSHG 0.RDDO Fig. 7-8: Error messages If there are errors on some units, the number of the unit to which the errors occur is displayed on the 7-digit display. At the same time, the LEDs that indicate the error are on (see Fig.

  • Page 43: Operation

    Operation MultiMAXX HG Operation General Operation Before starting the MultiMAXX HG heating unit, check the opening of the gas shut-off valve and the power supply. At first, the following parameters on the control panel OSHG 0.000M (OSHG 0.EC0M) (Multi) must be set: –...
  • Page 44 MultiMAXX HG Operation Operating part of the control panel Switch (Symbol) Function After pressing the ENTER key for longer than 5 sec, the complete group of units is switched on or off. Simultaneously, this key serves for the confirmation of selected menu positions. The ESC key serves to conclude a menu selection or to return to the previous menu.
  • Page 45 Operation MultiMAXX HG 8.2.1 MENU SETUP NOTE! In order to open or to close the menu SETUP, press the keys ESC and UP longer than 5 sec. Display of the SETUP MENU for the OSHG 0.000M (OSHG 0.EC0M) control panel (see Fig.
  • Page 46 MultiMAXX HG Operation MENU display on the control panel Setting possibilities Symbol MENU Number Number of units in one of units control group Pressure drop Number of the unit for which the pressure drop was set (only for mixed-air units with supply air temperature control)
  • Page 47 Operation MultiMAXX HG MENU display on the control panel Setting possibilities Symbol MENU Display Control Panel Information parameters control panel 1.48 Control panel FW version 21.0 Room temperature measu- red by PT 1000 control panel sensor ("EX" symbol is displayed when external thermostat is used, "-"...
  • Page 48 MultiMAXX HG Operation 8.2.2.1 MAIN MENU In the MAIN MENU, the desired temperature (setpoint) is adjusted in steps of 0.5 K. Symbol Function In order to cancel the key lock, press the ESC key longer than 3 sec. The set temperature has been achieved up to +-1K (The unit is controlled by an external or internal room temperature sensor and heats for reduced power) The specified unit functions faultlessly...
  • Page 49 Operation MultiMAXX HG 8.2.2.3 UNIT MENU (and other sub-menus) The submenu is selected in the device menu with the setting keys. The ENTER key confirms the action and enters into the submenu. The entered values in the submenus are confirmed with the ENTER key. Return with the ESC key.
  • Page 50 MultiMAXX HG Operation Symbol MENU MENU display on the control panel Setting possibilities Adjustment of Increasing the air outlet angle the air outlet angle Reducing the air outlet angle Unit RESET RESET of the selected unit ESC Return to previous MENU This symbol shows the number of the currently selected unit (can be between 1 and 10) 8.2.3 VENTILATION MENU Display of the VENTILATION MENU on the control panel OSHG 0.000M...
  • Page 51 Operation MultiMAXX HG 8.2.3.1 MAIN MENU Symbol Function In order to cancel the key lock, press the ESC key longer than 3 sec. The specified unit functions faultlessly. A fault has occurred at the specified unit or no data connection is available. Symbol only VENTILATION MENU 8.2.3.2 UNIT SELECTION MENU...
  • Page 52 MultiMAXX HG Operation 8.2.4 UNIT MENU (and other sub-menus) A submenu can be selected with the setting keys. The selected submenu is opened by pressing the ENTER key. The entered values in the submenus are confirmed with the ENTER key. Return with the ESC key.

  • Page 53: Adjustment Of The Mixed-Air Module

    Operation MultiMAXX HG Adjustment of the mixed-air module The mixed-air module is regulated via the control panel OSHG 0.000M (OSHG 0.EC0M) (Multi) from 0% to 100% or ON/OFF. NOTE! The running time of the actuator is approx. 90 sec. Adjustment of the secondary-air louvre The secondary-air louvre optimizes the introduction of supply air into the room.

  • Page 54: Maintenance

    MultiMAXX HG Maintenance Maintenance Maintenance NOTE! It is recommended to conclude a service agreement with one of the authorized service companies. HAZARDOUS VOLTAGE! Switch off the air handling unit to voltage-fee, and secure against unintentional subsequent switch-on. WARNING: HAZARDOUS ROTATING COMPONENTS! Wait to allow the fan rotational momentum to cease! RISK OF ACCIDENT BY GAS EXPLOSION! Block the gas mains to prevent any gas from escaping.

  • Page 55: Quarterly Maintenance

    Maintenance MultiMAXX HG Quarterly maintenance 9.2.1 Replacing filter If a unit heater is fitted with a filter module, the filter insert must be checked for clean condition. If there is a maximum pressure drop as defined by the project, the filter insert must be replaced.

  • Page 56: Semi-Annual Maintenance

    MultiMAXX HG Maintenance Pos. 1: Filter section Pos. 2: Mat filter G2 or G4 Unlock the side panel of the filter section (1) by slightly turning quick-action clamps by 90° and remove the filter. Pull out the mat filter insert and replace it (2) Push the new mat filter insert into the filter chamber, close the filter side part and secure it...

  • Page 57: Break-Downs

    Maintenance MultiMAXX HG Break-downs Symptom Possible cause of break-down Action/remedy Unit not switched on Switch on unit Fan does not function The fan switch is switched on No mains voltage Check fuse/circuit breaker/power supply The unit number on the OSHC 0.000M (technical personnel only) control panel is not underlined but crossed.

  • Page 58: 10 Disassembly And Disposal

    MultiMAXX HG Disassembly and Disposal 10 Disassembly and Disposal ENVIRONMENTAL DAMAGE! Have qualified licensed staff dismantle and dispose of the unit! 10.1 Disassembly For the disassembly of the gas-air heating unit, proceed as follows: HAZARDOUS VOLTAGE! Switch air handling unit voltage-fee and secure against unintentional subsequent switch-on.

  • Page 59: 11 Warranty Conditions

    Warranty Conditions MultiMAXX HG 11 Warranty Conditions • The manufacturer is liable for the quality and any possible defects of the gas heating unit within the warranty period, whose term begins on the day the gas heating unit is taken over by the customer, or from the day of commissioning. Commissioning must be requested latest 3 weeks after the unit has been taken over by the customer.

  • Page 60: 11.2 Warranty Certificate

    Warranty Conditions MultiMAXX HG 11.2 Warranty certificate Warranty period 24 months Product: MultiMAXX HG Identification number: Type: Burner: Identification number: Type: The manufacturer guarantees that the unit was inspected and that this model conforms to all valid standards. Stamp and signature The unit was installed by: Date, company stamp and signature The commissioning and warranty work on the unit were/will be ensured by:...
  • Page 61 Multi MAXX FläktGroup DC-2011-0141-GB 2018-05/R5 • Subject to modifications...

  • Page 62: Ec Declaration Of Conformti

    EC DECLARATION OF CONFORMTIY pursuant to Directive 2006/42/EC of the European Parliament and of the Council (original EC Declaration of Conformity) 2018/070/5AA89882 Manufacturer: FläktGroup Czech Republic a.s., Slovanská 781, 463 12 Liberec XXV - Vesec, Czech Republic; ID No.: 46708375 Entity authorized to compile technical documentation: FläktGroup Czech Republic a.s., Slovanská...
  • Page 63 WWW.FLAKTGROUP.COM MULTIMAXX HG FläktGroup is the European market leader for smart and energy efficient Indoor Air and Critical Air solutions to support every application area. We offer our customers innovative technologies, high quality and outstanding performance supported by more than a century of accumulated industry experience. The widest product range in the market, and strong market presence in 65 countries worldwide, guarantee that we are always by your side, ready to deliver Excellence in Solutions.

This manual is also suitable for:

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