Marstair IMPACT 20, Technical Manual

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

Page 2: ...mounted range of split systems comprises of 537 series impact wall mounted indoor units 550 series condensing units and 551 series heat pump outdoor units or 542 series ducted condensing units and 543 series electronic ducted heat pump units By choosing appropriate combinations the installer can provide a Air conditioners with a cooling range of 1 6 9 9 kW b Heatpump systems with a cooling range o...

Page 3: ... mm 720 1020 1320 DEPTH mm 290 290 290 WEIGHT kg 16 20 27 FEATURES ACCESSORIES IMPACT IMPACT E Adjustable air deflectors STD STD De ice thermostat STD Electric heating Electromechanical thermostat STD 3 fan speeds STD STD Remote hard wired control STD Remote infrared control STD Network Multisplit control STD Programmable timer STD Condensate pump Long life washable filter STD STD Flame retardant ...

Page 4: ... unit fan kW UK CONDITIONS NEMA EUROVENT ROOM 21 C 15 C AMBIENT 27 C 19 C R27 C 19 C A35 C 24 C MIN SPEED INDOOR FAN MAX SPEED INDOOR FAN MAX SPEED INDOOR FAN IMPACT MHPUE or DHPUE TOTAL SHR SENS TOTAL SHR SENS TOTAL SHR SENS 20E 15 1 2 0 75 0 9 1 7 0 81 1 4 2 0 0 78 1 6 40E 30 2 2 0 78 1 7 3 0 0 83 2 5 3 3 0 85 2 8 60E 50 3 5 0 72 2 6 4 8 0 82 3 9 5 3 0 81 4 3 2 Heating room 20 C 12 C outdoor uni...

Page 5: ... MAX STARTING CURRENT IMPACT MCU kW kW AMPS AMPS AMPS kW kW A PH A PH A PH 20 E 15 0 9 0 9 6 4 4 0 23 40 E 30 1 4 1 7 8 7 7 6 37 1 4 1 7 4 5 7 6 19 40 E 40 1 6 1 7 10 8 7 6 51 1 6 1 7 5 7 7 6 23 60 E 40 1 6 2 5 10 9 11 1 51 1 6 2 5 5 8 11 1 23 60 E 60 2 5 2 5 10 2 10 8 62 2 5 2 5 4 6 10 8 33 R407C AIR CONDITIONING SYSTEMS DCU Single Phase Supply 230Volts 50Hz Three Phase Supply 400Volts 50Hz INPUT...

Page 6: ... FUSES The system and its supply interconnecting wiring must be protected by fuses preferably High Rupture Current HRC motor rated types EN60269 or miniature circuit breakers EN60898 or local codes having similar time lag characteristics that allow starting of the compressor yet still afford close overcurrent protection under running conditions The ratings below are for HRC motor rated fuses FUSES...

Page 7: ...ing and lift off the outer cardboard carton sleeve The following are supplied IMPACT unit in protective sleeve held between two polystyrene end caps A cardboard sleeve containing two pipe assemblies complete with insulation and two cable glands suitable for flexible p v c sheathed cable A wall mounting bracket also held between the two polystyrene end caps Envelope containing operating instruction...

Page 8: ...lacement of heater elements requires a clearance at the right hand side equal to the length of the unit 3 Mark out the two required top hole centres as shown in Fig 2 note that the top of the IMPACT unit will be approximately 100mm above the level of the hole centres Drill to suit M6 Rawlbolt shields or equivalent strength fasteners Secure the wall mounting bracket to the upper two holes ensuring ...

Page 9: ...drip tray with water A condensate pump kit incorporating overflow protection can be fitted within the unit to enable a lift of up to 5m Air Deflection Air deflection is set by manually adjusting the vanes The unit is supplied with front discharge but can be changed to top discharge as follows 1 Remove the filters 2 Remove the end covers 3 Using a screwdriver or thin bladed tool release the three t...

Page 10: ...ng the system 3 The maximum pipe lengths to be used for each pipe size and outdoor unit are shown in the table below Use of these sizes and lengths is recommended in order to achieve optimum system performance 4 In calculating equivalent lengths of pipe runs the effect of bends and fittings must be taken into account The table below covers the fittings most likely to be encountered in this type of...

Page 11: ...UC EXP 3 8 1 2 5 8 3 4 7 8 11 8 3 8 1 2 5 8 UK NEMA UK NEMA UK g NEMA g IMPACT 20 3 8 3 8 MCU 15 DCU 15 3 8 3 8 7 5 30 50 50 033 035 032 200 230 IMPACT 40 1 2 3 8 MCU 30 DCU 30 1 2 3 8 15 50 80 50 80 040 042 039 0 60 IMPACT 40 1 2 3 8 MCU 40 DCU 40 1 2 3 8 10 36 80 7 5 80 042 044 041 140 240 IMPACT 60 5 8 3 8 MCU 40 DCU 40 1 2 3 8 10 36 80 7 5 80 042 044 043 200 300 IMPACT 60 5 8 3 8 MCU 60 DCU 60...

Page 12: ...nds extend through the knockout For pipe exit through the rear of the unit the installer must supply appropriately flared pipework On heat pump systems the IMPACT unit needs to have an expansion assembly fitted refer to the next section 4 Interconnecting pipework should be installed in accordance with good refrigeration practice 5 Final connection is made to the male flare connectors either on the...

Page 13: ...sing cable type RS 485 or equivalent or two cores of 00526077 4 core cable available from TEV Ltd The cable screen should be secured to ground earth at BOTH ends using the clamps provided Do not attempt to run the communication in the spare cores of any power carrying cable Whenever possible the communication cable should be run separate from any mains cable DATA PLATES Because of the ability to m...

Page 14: ... the system for a few minutes to allow it to stabilize Where possible charge to a sweat line on the evaporator Typical suction pressures on short lines at UK conditions with high speed evaporator fan low speed condenser fan commissioning speed for DCUE DHPUE and MHPUE should be Electromechanical Comfort Systems approx 4 4 bar 65 psig Electronic Comfort Systems approx 3 8 bar 55 psig Heat Pump Syst...

Page 15: ...e taken to ensure that the wiring is correct refer to the diagram below The cable should be connected prior to mounting the bracket taking great care to ensure that the 4 contact blades remain free to exert spring pressure on the handset terminals Secure the bracket to the wall by drilling two 6mm diameter holes in the positions shown inserting the wall plugs and securing with the two screws provi...

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

Page 17: ...TING 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 40E 60E 3 Phase MHPUE 30 50 Heronhill for all your Marstair requirements Tel 01823 665660 www heronhill co uk Fax 01823 665807 ...

Page 18: ...18 20 53799173 05 IMPACT 20 60 and 1 PHASE DCU 15 60 IMPACT 20E 60E and 1 PHASE DCU DHPUE 15 60 Heronhill for all your Marstair requirements Tel 01823 665660 www heronhill co uk Fax 01823 665807 ...

Page 19: ...19 20 53799173 05 IMPACT 40 60 and 3 Phase DCU 30 60 IMPACT 40E 60E and 3 Phase DCU DHPUE 30 60 Heronhill for all your Marstair requirements Tel 01823 665660 www heronhill co uk Fax 01823 665807 ...

Page 20: ...lectronic 7 Motor 21 Left hand end cover 35 Return air sensor electronic 8 Drip tray assembly 22 Top box assembly 36 Condensate pump 9 Power board electronic 23 Coil and header 37 Condensate pump sensor 10 Thermostat e mechanical 24 Extrusion 38 Condensate pump PCB 11 Rotary switch electromechanical 25 Drip deflector Remote controller not shown shown 12 Right hand coil bracket 26 Left hand coil br...