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Table of Contents
Related Manuals for TEV marstair CXE Series
Summary of Contents for TEV marstair CXE Series
- Page 1 TECHNICAL MANUAL CXE SPLIT SYSTEMS 55908039-03...
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Page 2: Table Of Contents
CXE UNITS MCU+ UNITS GENERAL TEV Ltd recommend that personnel working on this equipment be skilled and fully conversant with the appropriate Air Conditioning, Refrigeration and Electrical practices and have sound knowledge of current Industrial Safe Working practices. CXE models are electronic control units that use R407C refrigerant; they provide cooling within the range of 2.8 –... - Page 3 PART NUMBERS Part No. MODEL MODEL Part No. MCU+50 55017006 55017013 CXE30 MASTER 55917026 MCU+80 55017008 55017015 CXE50 MASTER 55917028 MCU+90 55017009 55017016 CXE70 MASTER 55917029 MCU+100 55017017 CXE30 SLAVE 55917056 MCU+130 55017018 CXE 50 SLAVE 55917058 MCU+150 55017019 CXE70 SLAVE 55917059 MCU+165...
- Page 4 DIMENSIONS & WEIGHTS MODEL UNPACKED PACKED HEIGHT WIDTH DEPTH WEIGHT HEIGHT WIDTH DEPTH WEIGHT MODEL UNPACKED PACKED WEIGHT WEIGHT WEIGHT WEIGHT MCU+ HEIGHT WIDTH DEPTH HEIGHT WIDTH DEPTH 1000 1080 1000 1080 1000 1090 1000 1090 1000 1080 1080 1090 1000 1080 1080...
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Page 5: Sound Power And Sound Pressure Levels
SOUND POWER AND SOUND PRESSURE LEVELS INDOOR UNIT MAXIMUM SOUND POWER LEVELS SOUND PRESSURE LEVELS SPEED Frequency Hz dB(A) CXE 30 69.1 67.7 67.6 65.6 62.2 56.0 SPEED CXE 50 71.7 69.2 69.1 67.1 63.2 58.5 CXE 70 70.1 68.2 68.6 66.1 63.2... -
Page 6: Electrical Data
ELECTRICAL DATA UNIT ELECTRICAL LOADS [230V 50Hz 1Ph (A) or 400V 50Hz 3Ph (A/Ph)] PERFORMANCE DATA MODEL FAN MOTOR HEATER CXE 30 13.0 CXE 50 13.0 CXE 70 13.0 Starting Nominal Starting Nominal Power Power MODEL current current current current (nominal) (nominal) (kW) -
Page 7: Dimensions
CXE DIMENSIONS 55908039-03... - Page 8 CXE INSTALLTION CONTENTS PARTS DESCRIPTION ACTION Envelope containing operating instructions Pass to the end user. and Declaration of Conformity Drain Stub/Nut/Gasket Fitted by installer. Drain stub adaptor Convert to ¾" drain if required. Mounting brackets plus fixings Use to hang unit. The unit may be mounted on a wall or solid ceiling using brackets supplied.
- Page 9 FUSES 1PH FUSE SIZE (Cooling Only Systems) MCU(+) FUSE 3PH FUSE SIZE (Cooling Only Systems) MCU(+) FUSE Note: On 3 ph systems the supply must go to the MCU+ outdoor unit and then to the CXE indoor unit. For fuse sizing with electric heating contact Marstair technical department. WIRING DIAGRAM MASTER (Also shows optional heater) SLAVE (Also shows optional heater)
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Page 10: Controller Settings
CONTROLLER SETTINGS TEMPERATURE CONTROL (Do not set the controller below 4°C.) The SET temperature is factory set at 12⁰C. The digital display normally displays the return air temperature. To change the SET temperature, press and hold down the SET button. If no alarms active, the ‘St1’... -
Page 11: Mcu+ 50
MCU+ DIMENSIONS MCU+ 50-100 ( Dimensions in mm.) Weight (kg) MODEL 1 Ph 3 Ph MCU+ 50 1000 300 660 570 213 60 333 MCU+ 80 1000 300 660 570 213 60 333 MCU+ 90 1000 350 760 495 250 70 383 MCU+ 100 1000 350 760 495 250 70 383 55908039-03... -
Page 12: Pipework
MCU+ 130 – 180 ( Dimensions in mm.) MCU+ PIPEWORK MODEL Weight (kg) MCU+ 130 1000 1020 MCU+ 150 1000 1020 MCU+ 165 1000 1020 MCU+ 180 1100 1215 Individual pipe runs to a maximum of 20m, including 7.5m lift, are permissible with liquid lines, 80m with expansion lines, provided good refrigeration practice is followed. - Page 13 The equivalent lengths of all the fittings in a pipe run should be added together and the total added to the actual pipe length in order to calculate the total equivalent length. Use the shortest possible route, avoiding sharp bends. Completely insulate the suction line, fully over the indoor unit drain tray.
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Page 14: Electrical
PIPE CONNECTIONS Units are supplied with the following male flare connections (sizes in inches): Model MCU+ Size 50 80 90 100 130 150 165 180 Expansion 3/8 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 5/8 5/8 3/4 3/4 3/4 3/4 7/8* Suction CONNECTING THE UNITS Ensure both service valves on the unit are closed (clockwise) before... -
Page 15: Refrigerant
This becomes obvious on start up - the compressor will not develop a normal running pressure differential and the top will not become warm: it may be excessively noisy. If this happens, switch off the mains power and exchange the two supply phases not connected to the indoor unit. - Page 16 MCU+ REFRIGERANT FACTORY CHARGE FOR 7.5M RUNS AT UK CONDITIONS MCU+ 17 Series MCU+ 1690 1167 1880 1357 2060 1422 2520 1882 4170 3075 4170 3075 4540 3445 4640 4229 IF NO ADDITIONAL REFRIGERANT CHARGE IS REQUIRED: Open the valves very slowly using a 5 or 8mm Allen key. Replace the caps on the service ports, (torque to 25NM). IF ADDITIONAL REFRIGERANT IS REQUIRED: After evacuating the indoor unit and interconnecting pipework, slowly open the valves using 5 or 8mm Allen key.
- Page 17 HEAD PRESSURE CONTROL SAGINOMIYA (RGE – ZIN4 – SH) The head pressure controller is factory set to suit the refrigerant. It may be necessary to adjust this to suit site conditions, to raise or lower the nominal head pressure. a. With the system switched off, connect a high pressure gauge to the liquid line service valve. b.
- Page 18 NOTE: The condenser fan may stop if the operating pressure drops below 200 psig (13.8 barg) to achieve this remove sealing plug and insert 2mm or 5/64” R407C: 275-280 psig (18.9-19.6barg) allen key into setting screw. Turn allen key clockwise (+) or counter clockwise (-) to readjust the setting. Do not turn setting screw more than 3 turns clockwise (+3).
- Page 19 CXE INDOOR UNIT COMPONENT IDENTIFICATION Grille De-ice stat (option) Fan / motor Heater assembly (option) Case Drain stub adaptor Wall / ceiling mounting brackets Drain tray Heater bracket Side access panel Coil assembly Electrics box door Thermostat bulb & bracket Digital display (option) Restrictor assembly / extended pipe (option) 55908039-03...
- Page 20 HEAD PRESSURE CONTROL pcb MOUNTING FOOT 3 MINUTE TIMER pcb LP SWITCH COMPRESSOR CAPACITOR COMPRESSOR ELECTRICS BOX HANDLE TEV LTD, ARMYTAGE ROAD, BRIGHOUSE, WEST YORKSHIRE, HD6 1QF. TEL: + 44 (0) 1484 405600 FAX: +44 (0) 1484 405620 EMAIL: sales@marstair.com WEB: www.marstair.com...
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