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Kroll LH Series Technical Manual

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TECHNICAL WORK SHEET
March 2012
Get In Touch
Call: 01729 824108
Email: info@puravent.co.uk
TECHNICAL MANUAL
Air Heaters
SERIES LH and LH-X
Our Address
Puravent, Adremit Limited, 6 County Business Park,
Darlington Road, Northallerton, DL6 2NQ

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  • Page 1 TECHNICAL WORK SHEET TECHNICAL MANUAL Air Heaters SERIES LH and LH-X March 2012 Get In Touch Our Address Call: 01729 824108 Puravent, Adremit Limited, 6 County Business Park, Darlington Road, Northallerton, DL6 2NQ Email: info@puravent.co.uk...
  • Page 2 INDEX Page Range Index General Information Important safety regulations Description of unit Product reception Handling and Transport Removing the packaging Identification Overall dimensions and weight Structure Technical data Abbreviation – Key Air flow Spread sheets capacity Positioning Shelf mounting Installing the vertical fin kit Ceiling mounting kit Water coupling dimensions Water circuit diagram...
  • Page 3 Type Art.no. Art. No. Standard housing Stainless steel housing RAL 7035 LHX... LH... LH/X120 038972 038988 LH/X130 038973 038989 LH/X220 038974 038990 LH/X230 038975 038991 LH/X320 038976 038992 LH/X330 038977 038993 LH/X420 038978 038994 LH/X430 038979 038995 LH/X520 038980 038996 LH/X530 038981 038997...

  • Page 4: General Information

    GENERAL INFORMATION This manual is an integral part of the product: Repair and/or maintenance work must be carried always make sure the unit is accompanied by this out by an Authorised Technical Service or manual so that it can be consulted by the user, personnel qualified as described in this manual.

  • Page 5: Important Safety Regulations

    IMPORTANT SAFETY REGULATIONS Before carrying out any cleaning and/or Do not place any objects on the unit or insert any maintenance work on the unit always disconnect objects through the cover grating. the unit from the mains power supply by turning the main switch to OFF.

  • Page 6: Handling And Transport

    HANDLING AND TRANSPORT Handling must be done by properly equipped personnel. All Units types LH/X620-930 are packaged in a equipment must be suitable to handle the weight of the unit. cardboard case with a wooden base. Raise the case Unit types LH/X 120- 530 are packaged in a cardboard case with a fork-lift truck by inserting the forks in the with handles to aid transport.

  • Page 7: Overall Dimensions And Weight

    IDENTIFICATION If the plaque is damaged or lost request a The water-fed fan heateres are to be identified as follows: duplicate from an Authorised Technical Service. The TECHNICAL DATA plaque has to be on the rear of the unit. OVERALL DIMENSIONS AND WEIGHT LH/X 1205 1405...
  • Page 8 STRUCTURE Structure of heater types LH/X 120-530 Structure of heater types LH/X 620-930 Heat exchanger Cu/Al Fixing part Side panel, left Fixing plate Side panel, right Fan (s) Upper – lower panel Outflow grating Internal part Get In Touch Our Address Call: 01729 824108 Puravent, Adremit Limited, 6 County Business Park, Darlington Road, Northallerton, DL6 2NQ...

  • Page 9: Technical Data

    TECHNICAL DATA U/min’ kcal/h m3/h °C Liter/h V / Hz MAX MED MIN 120 13,3 11450 1750 0,40 130 17,3 14900 1550 1020 0,40 220 17,7 15250 2450 1044 0,40 230 23,8 20450 2300 1401 0,40 320 27,4 23550 3600 1612 0,70 330 35,4...
  • Page 10 Abbreviation index – caption Water intake temperature Thermal output Water outlet temperature Electrical current Air intake temperature dB(A) Noise level Air outlet temperature Water flow rate ∆p Size Water side head loss Air flow rate Water flow rate w ( m³/h) = Water flow rate [m³/h] 0,86 x Q...
  • Page 11 LH/X930 8400 LH 120 Max fan speed Med fan speed Min.fan speed Air flow rate m³/h 1.750 1.250 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 0,40 Weight Water flow rate Connection inch Noise level...
  • Page 12 Max. electr. current Max. 0,40 Weight Water flow rate Connection inch Noise level dB(A) Δ P Δ P Δ P Heating medium °C °C °C °C LTHW 50 / 40°C 6,40 32,00 5,50 34,00 11,90 62,00 7,90 30,00 6,80 32,00 13,00 60,00 10,98...
  • Page 13 Max fan speed Med. fan speed Min. fan speed Air flow rate m³/h 2.450 2.050 1.900 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 0,40 Weight Water flow rate Connection inch Noise level dB(A) Δ...
  • Page 14 LH 230 Max fan speed Med. fan speed Min. fan speed Air flow rate m³/h 2.300 1.850 1.550 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 0,40 Weight Water flow rate Connection inch Noise level...
  • Page 15 LH 320 Max. fan speed Med. fan speed Min. fan speed Air flow rate m³/h 3.600 2.350 1.650 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 0,70 Weight Water flow rate Connection inch Noise level...
  • Page 16 LH330 Max. fan speed Med. fan speed Min. fan speed Air flow rate m³/h 3.400 2.000 1.350 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 140 Weight Water flow rate 12,2 Connection inch Noise level...
  • Page 17 LH 420 Max. fan speed Med. fan speed Min. fan speed Air flow rate m³/h 3.950 2.800 1.900 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 0,80 Weight Water flow rate 10,7 Connection inch...
  • Page 18 LH 430 Max. fan speed Med. fan speed Min. fan speed Air flow rate m³/h 3.900 2.650 1.850 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 0,80 Weight Water flow rate 14,2 Connection inch...
  • Page 19 LH 520 Max. fan speed Med. fan speed Min. fan speed Air flow rate m³/h 5.200 3.300 2.450 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 1,40 Weight Water flow rate 12,5 Connection inch...
  • Page 20 LH 530 Max. fan speed Med. fan speed Min. fan speed Air flow rate m³/h 4.900 3.150 2.200 700 – 900 - 1400 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 1,40 Weight Water flow rate 16,2 Connection inch...
  • Page 21 LH 620 Max. fan speed Med. fan speed Air flow rate m³/h 6.700 4.550 700 – 900 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 1,04 Weight Water flow rate 14,1 Connection inch Noise level dB(A) Δ...
  • Page 22 LH 630 Max. fan speed Med. fan speed Air flow rate m³/h 6.700 4.250 700 – 900 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 1,04 Weight Water flow rate 18,5 Connection inch 1¼ Noise level dB(A) Δ...
  • Page 23 LH 720 Max. fan speed Min. fan speed Air flow rate m³/h 8.500 6.550 700 – 900 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 1,40 Weight Water flow rate 18,8 Connection inch 1¼ Noise level dB(A) Δ...
  • Page 24 LH 730 Max fan speed Min. fan speed Air flow rate m³/h 7.700 6.100 700 – 900 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 1,40 Weight Water flow rate 25,4 Connection inch 1¼ Noise level dB(A) Δ...
  • Page 25 LH 920 Max. fan speed Min. fan speed Air flow rate m³/h 12.550 8.950 700 – 900 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 2,08 Weight Water flow rate 21,5 Connection inch 1¼ Noise level dB(A) Δ...
  • Page 26 LH 930 Max. fan speed Min. fan speed Air flow rate m³/h 10.900 8.400 700 – 900 Fan speed rpm 1/min Electrical power Electr.power supply Max. electr. current Max. 2,08 Weight Water flow rate 29,4 Connection inch 1¼ Noise level dB(A) Δ...
  • Page 27 POSITIONING For porper installation always observe the following minimum The heater installation point must be selected by the requisites: planner or a person qualified to handle such matters: all • Position the unit on a dry level surface capable of sustaining ist technical requirements, standards and laws in force must weight;...
  • Page 28 KIT FOR SHELF INSTALLATION The shelves can be mounted either above or beneath the unit depending on installation requirement. To assemble, proceed as follows: • Drill holes in the walls as per the template;. • Attach the shelves to the walls using suitable fixing items (not supplied). •...
  • Page 29 Drilling Template with shelves applied over heater unit LH/X 1.139 1.339 The diameter of shelf plate fixing holes is 12mm. WARNING ! The support shelves are siezed to support one heater It is forbidden to climb up on the shelves unit only.

  • Page 30: Water Circuit Diagram

    INSTALLING THE CEILING MOUNTING KIT To install the CEILING MOUNTING KIT proceed as follows: • Dissassemble the air outflow grating (1). • Position and fix the ceiling kit outflow grating (2). • Fix the suspension eyebolts (3)inside the threaded inserts. •...

  • Page 31: Water Connections

    INVERTING THE WATER CONNECTIONS To switch the water connections from one side to the other proceed as follows: • Dissamble the air outflow panel (1). • Rotate the entire unit (2) 180°. • Replace the air outflow panel (1). It is essential that water inlet-outlet directions always are observed as indicated on the adhesive label.

  • Page 32: Electrical Connections

    ELECTRICAL CONNECTIONS The fan heater leaves the factory fully wired and needs only: A proper earth connection is compulsory. It is forbidden to use gas or ater pipes to earth the unit. The manufacturer  cannot be held liable for any damages caused by failure to To be connected to the mains;...
  • Page 33 WIRING DIAGRAM TYPES LH/X 120 - 530 (Single phase 230V ~ 50Hz power supply) Key: MFAN Fan connecting terminal 250V 50Hz 3N Single-phase power supply Room-Thermostat Differential megneto-thermal cut-out switch (1) Not included: to be installed by the customer. WIRING DIAGRAM TYPES LH/X 620 – 930 (Star) (Single phase 230V ~ 50Hz 3Npower supply) Key:...
  • Page 34 WIRING CONNECTION DIAGRAM TYPES LH/X 620-930 ( TRIANGLE ) (Tri-phase 400V ~ 50Hz 3N power supply) Key: FAN1 Electric fan 400V 50Hz 3N Tri-phase power supply Line electromagnetic switch Room-Thermostat Differential magneto-thermal cut-out switch (1) Not included: to be installed by the customer MOTOR- WINDINGS ELECTRICAL PLAN (For version with Tri-phase 400V ~ 50Hz 3N power supply) VERDE...
  • Page 35 WIRING CONNECTION DIAGRAM TYPES LH/X 620 - 930 ( STAR ) For version with 2 fans and derivation box (Tri-phase 400V ~ 50Hz 3N power supply) Key: Cable colours plan: Name Cable colour FAN1 Electric fan Black FAN2 Electric fan Brown Connecting terminal for derivation box Blue...
  • Page 36 WIRING CONNECTION DIAGRAM TYPES LH/X 620 - 930 ( TRIANGLE ) For version with 2 fans and derivation box (Tri-phase 400V ~ 50Hz 3N power supply) Key: Cable colours plan: Name Cable colour FAN1 Electric fan Black FAN2 Electric fan Brown Connecting terminal for derivation box Blue...
  • Page 37 1-step commutator DST1 Article-No. 022071 Overload cut-out (inherent protection) for 1-step ventilator operating max.heating capacity output 3 kW Operational power supply 400 V Control power supply 230 V Protection rating IP 54 Dimensions WxHXD:110x180x115mm Weight 0,73 kg No warranty on motor without overload cut-out ! Installations are to be executed observing all legal reglementation.
  • Page 38 Five-step-switch Five-step-switch DST 5-2 DST 5-4 DST 5-7 DST 5-10 Art.-no. 022074 022075 022076 022077 Overload cut-out (inherent-protection) für 5-step-ventilation max. capacity Operational power supply Control power supply Protection IP20 Dimension BxHxT 230x310x190 Weight Get In Touch Our Address Call: 01729 824108 Puravent, Adremit Limited, 6 County Business Park, Darlington Road, Northallerton, DL6 2NQ Email: info@puravent.co.uk...
  • Page 39 Roomthermostat - RT Article-No. 006859 In plastic housing 71 x 71 x 30 mm For mounting after finery. Switching capacity Heating 10 (4)A. Temperature range 6 - 30 °C Switching difference 0,5 K Protection rating IP 30 Roomthermostat - RTI Industrial version Article-No.
  • Page 40 Day-/ Night regulation RTA Article-no. 006708 in plastic housing for night reduction with digital times, power reserve, daily and weekly programmation, 1 sensor for wall-mounting included. Range of setting 0 - 35°C Power reserve 100 hours Protection rating IP 54 Switching difference 0,2 - 1,2 K Switching capacity...
  • Page 41 FILLING – EMPTYING THE UNIT  FILLING: Repeat the procedure after the heater has been running a few hours. Before starting filling: • Position the main switch to OFF  Check that there are no leaks. • Check that the water system drain vlave is closed. •...
  • Page 42 CONNECTING HEATING INSTALLATION Water outlet Connecting warm-water heating system Before connecting to existing heating system, make sure, that the respective demands of power, specific for each unit, are available at any time. Water connection of the unit has to be effected by means of Air entrance appropriate socket-unions and stop-valves at water entrance and outlet.
  • Page 43 FIN ADJUSTMENT The zorizontal fins must be adjusted during installation so as to create an airflow suitable for the room/ area being heated. Such airflow must not distrub the persons occupying such room/area. The fins can be individually adjusted manually. Likewise, vertical fins must also be adjusted (where fitted).

  • Page 44: First-Time Startup

    FIRST – TIME START- UP Stick the type etiquette as described on page 7. ACTIVATING THE HEATING FUNCTION: • Position the main switch to ON. • Set fan speed as desired (where speed selector switch is installed); • Set room thermostat to desired temperature (hiher than current room temperature).

  • Page 45: Setting Into Operation

    SETTING INTO OPERATION WARNING Start up can be effected only, after having assured, that qualified mounting and electrical installation correspond to relevant restrictions of EC directives. DURING FIRST-TIME START-UP DURING FIRST-TIME START-UP Check correct mechanical mounting. During first-time start-up, the correct function and setting of all regulations, control and security units have to be checked.

  • Page 46: Maintenance

    MAINTENANCE Periodic maintenance is essential for the safety, CLEANING THE HELICAL FAN efficeieny and long-term performance of the unit. Before doing any maintenance work: Remove any dust and/or foreign objects that may have dposited on the fan and/or grating with compressed air. •...

  • Page 47: Troubleshooting

    TROUBLESHOOTING PROBLEM CAUSE SOLUTION No power Check unit is powered The fan does not start Main switch turned to OFF Turn to ON Room thermostat faulty Check room thermostat Fan faulty Check fan motor Condenser faulty Check condenser Overload cut-out tripped Check absorption Poor heating efficiency Heat exchanger dirty...
  • Page 48 En cas de modification qui n'est pas convenue avec nous, cette déclaration est périmée. Eine technische Dokumentation ist vollständig vorhanden - A technical documentation is completely at hand / Une documentation techniques complète existe Kirchberg/Murr, den 27.06.2007 Kroll GmbH 71737 Kirchberg/Murr, Pfarrgartenstraße 46 Tel.: 07144/8300, Fax : 830100 Peter Scheuer Geschäftsführer / Director / Directeur...
  • Page 49 Maintenances Wartungsintervalle / Servicing intervals / Intervalles de maintenance Tag der Wartung Name Bemerkungen Day of servicing Name Notes Jour de maintenance Notes Get In Touch Our Address Call: 01729 824108 Puravent, Adremit Limited, 6 County Business Park, Darlington Road, Northallerton, DL6 2NQ Email: info@puravent.co.uk...
  • Page 50 Notes Get In Touch Our Address Call: 01729 824108 Puravent, Adremit Limited, 6 County Business Park, Darlington Road, Northallerton, DL6 2NQ Email: info@puravent.co.uk...
  • Page 51 Notes Get In Touch Our Address Call: 01729 824108 Puravent, Adremit Limited, 6 County Business Park, Darlington Road, Northallerton, DL6 2NQ Email: info@puravent.co.uk...
  • Page 52 оригинальной версии, поставленной изготовителем, приводит к тому, что любые гарантии теряют силу. Кроме того, действуют наши "Условия продаж и поставки". В изделие могут без уведомления вноситься технические модификации, направленные на усовершенствование изделия. Kroll Kroll SA au capital de 399 900 € Pfarrgartenstraße Villefranche / Saône D-71737...

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