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Heronhill - for all your Marstair requirements
IMPACT / IMPACT E WALL MOUNTED UNITS
TECHNICAL MANUAL
53799173-05
Tel: 01823 665660
www.heronhill.co.uk
Fax: 01823 665807

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  • Page 1 Heronhill - for all your Marstair requirements IMPACT / IMPACT E WALL MOUNTED UNITS TECHNICAL MANUAL 53799173-05 Tel: 01823 665660 www.heronhill.co.uk Fax: 01823 665807...
  • Page 2: Table Of Contents

    Heronhill - for all your Marstair requirements INDEX CONTENTS PAGE GENERAL. PART NUMBERS, DIMENSIONS & WEIGHTS, FEATURES & ACCESSORIES, UNIT COMBINATIONS. SYSTEMS & PERFORMANCE, ELECTRICAL HEATING, AIR FLOWS. SOUND POWER AND SOUND PRESSURE LEVELS, ELECTRICAL DATA. 5 – 6 ELECTIRAL LOADS.
  • Page 3: Part Numbers

    Heronhill - for all your Marstair requirements PART NUMBERS Electromechanical Models IMPACT 20 IMPACT 40 IMPACT 60 53700001 53700002 53700003 Part Number IMPACT 20E IMPACT 40E IMPACT 60E Electronic Models 53700011 53700012 53700013 Part Number DIMENSIONS AND WEIGHTS ( for dimensions, weights and sizes of outdoor units refer to outdoor...
  • Page 4 Heronhill - for all your Marstair requirements AIR CONDITIONER SYSTEMS AND PERFORMANCE (kw) UK CONDITIONS NEMA (EUROVENT) TROPICAL ROOM 21°C/15°C ROOM 27°C/19°C ROOM 29°C/19°C AMBIENT 27°C/19°C AMB 35°C/24°C AMB 46°C/24°C IMPACT + MCU+ MIN SPEED EVAP MAX SPEED EVAP MAX SPEED EVAP...
  • Page 5: Electrical Data

    Heronhill - for all your Marstair requirements SOUND POWER AND SOUND PRESSURE LEVELS IMPACT UNITS SOUND POWER LEVELS SOUND PRESSURE LEVELS Frequency Hz MODEL SPEED 42.1 48.6 52.2 47.4 40.7 34.8 52.1 31.6 45.5 51.3 54.6 51.8 45.3 39.1 55.6 35.1...
  • Page 6 Heronhill - for all your Marstair requirements R407C HEAT PUMP SYSTEMS (DHPUE) Single Phase Supply 230Volts - 50Hz Three Phase Supply 400Volts - 50Hz SYSTEM SYSTEM INPUT FULL LOAD AMPS INPUT FULL LOAD AMPS MODEL MAX. MAX. COMBINATION STD. + ELECT STD.
  • Page 7 Heronhill - for all your Marstair requirements SEPARATE SUPPLIES TO ELECTRONIC INDOOR AND OUTDOOR UNITS (A) HEAT PUMP SYSTEMS ONLY It is recommended that systems using electronic indoor AND outdoor units should be independently fused. NOTE THAT THESE SUPPLIES MUST BE TAKEN FROM THE SAME PHASE...
  • Page 8: General

    Heronhill - for all your Marstair requirements Chassis Mounting NOTE: It is generally easier to fit kits prior to mounting the unit and connecting the pipework. It is essential to fit a heater kit at this stage if right hand side access will be limited to less than the unit width.
  • Page 9: Condensate Removal

    Heronhill - for all your Marstair requirements Condensate Removal Condensate collects in a drip tray along the full length of the coil. An outlet pipe is provided at the rear left hand end of the tray for connection to a pipe for gravity drain.
  • Page 10 Heronhill - for all your Marstair requirements APPLICATION To maximise performance, pipe runs should be kept as short as possible, avoiding sharp bends. However, individual pipe runs to a maximum of 80m, including 20m lift, are permissible provided good refrigeration practice is followed.
  • Page 11 Heronhill - for all your Marstair requirements RESTRICTOR MATCHES Outdoor units are supplied with cooling restrictors fitted in the expansion assembly; refer to the following tables for any restrictor changes. Those ticked do not require a change of restrictor. Where appropriate, the alternative cooling or heating restrictor is supplied with either the indoor or the...
  • Page 12: Pipe Connections

    Heronhill - for all your Marstair requirements PIPE CONNECTIONS IMPACT UNITS Pipework is terminated at the left hand side of the unit. Two pipe assemblies are supplied loose with flare nut connectors to enable pipe exit from either the top or bottom of the unit via knockouts. Rear pipe exit is possible with installer supplied pipework.
  • Page 13: Electrical Connections

    Heronhill - for all your Marstair requirements ELECTRICAL CONNECTIONS Mains, control and interconnecting cables must be supplied and fitted by the installer. Installer wiring must be carried out in accordance with IEE regulations and local codes. Refer to the interconnecting wiring diagrams on pages 30 to 34.
  • Page 14 Heronhill - for all your Marstair requirements ADDING REFRIGERANT If additional refrigerant charge is required: After evacuating the indoor unit and interconnecting pipework, open the valves using a 4 or 5mm Allen key. The high and low side pressures should equalise within a minute.
  • Page 15: E Remote Controller

    Heronhill - for all your Marstair requirements INSTALLATION of the IMPACT E REMOTE CONTROLLER IMPACT E indoor units are supplied with a remote controller, wall mounting bracket, PP3 (9 volt) battery, screws and wall plugs. The controller either operates remotely by infrared signals, when the bracket may be used to park the controller for convenience, or may be hard wired to the unit (via the wall mounting bracket) in applications where infrared is inappropriate, e.g., high lighting level, no direct line of sight etc.
  • Page 16: Wiring Diagrams

    Heronhill - for all your Marstair requirements WIRING DIAGRAMS ELECTROMECHANICAL IMPACT ELECTRONIC IMPACT E 16/20 53799173-05 Tel: 01823 665660 www.heronhill.co.uk Fax: 01823 665807...
  • Page 17: Wiring Diagrams

    Heronhill - for all your Marstair requirements INTERCONNECTING WIRING DIAGRAMS 20(E) - 60(E) + 1 Phase MCU+ 15 – 60 20E - 60E + 1 Phase MHPUE 15 - 50 40(E) - 60(E) + 3 Phase MCU(+) 30 - 60...
  • Page 18 Heronhill - for all your Marstair requirements IMPACT 20 –60 and 1 PHASE DCU+ 15 – 60 IMPACT 20E – 60E and 1 PHASE DCU+/DHPUE 15 - 60 18/20 53799173-05 Tel: 01823 665660 www.heronhill.co.uk Fax: 01823 665807...
  • Page 19 Heronhill - for all your Marstair requirements IMPACT 40 - 60 and 3 Phase DCU+ 30 - 60 IMPACT 40E - 60E and 3 Phase DCU+/DHPUE 30 – 60 + + + + 19/20 53799173-05 Tel: 01823 665660 www.heronhill.co.uk Fax: 01823 665807...
  • Page 20 Heronhill - for all your Marstair requirements EXPLODED DIAGRAM OF IMPACT WITH COMPONENT IDENTIFICATION (IMPACT 40 SHOWN) Top cover plate 15 Terminal assembly 29 Heater cut-out assembly Wall mounting bracket 16 Heater element 30 Electrics plate Back panel 17 Right hand end cover...

This manual is also suitable for:

Impact 20eImpact 40Impact 40eImpact 60Impact 60e

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