TEV Marstair CX 30 Technical Manual

TEV Marstair CX 30 Technical Manual

Split systems and low teperature split systems

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TECHNICAL MANUAL
CX(E) SPLIT SYSTEMS
CX(E) LOW TEPERATURE SPLIT SYSTEMS
55908014-17

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Summary of Contents for TEV Marstair CX 30

  • Page 1 TECHNICAL MANUAL CX(E) SPLIT SYSTEMS CX(E) LOW TEPERATURE SPLIT SYSTEMS 55908014-17...
  • Page 2 CX(E) UNITS CKC 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. CX(E) models are electromechanical / Electronic control units that use R407C refrigerant; they provide cooling within the range of 2.8 –...
  • Page 3: Part Numbers

    PART NUMBERS MODEL CX 30 CX 40 CX 50 CX 70 PART NUMBER 55917001 55917002 55917003 55917004 MODEL CXE 30 CXE 40 CXE 50 CXE 70 PART NUMBER 55917017 55917016 55917015 55917014 MODEL CKC 20 1ph CKC 30 1ph CKC 50 1ph CKC 80 1ph CKC 80 3ph PART NUMBER...
  • Page 4: Dimensions And Weights

    DIMENSIONS & WEIGHTS MODEL UNPACKED PACKED CX(E) HEIGHT WIDTH DEPTH WEIGHT HEIGHT WIDTH DEPTH WEIGHT WEIGHT WEIGHT HEIGHT WIDTH DEPTH HEIGHT WIDTH DEPTH 1000 1080 1000 1080 1000 1080 PERFORMANCE DATA (kW) OPTIONAL ELECTRIC RATING CONDITIONS HEATER (ROOM 12.7C / 10C) (AMBIENT 27C / 19C) MODEL TOTAL SENSIBLE...
  • Page 5: Air Flows

    CXE 70 + CKC 60 0.70 AIR FLOWS MODEL m³/s MODEL m³/s CX(E) 30 0.61 CKC 20 0.97 CX(E) 40 0.61 CKC 30 0.97 CX(E) 50 0.66 CKC 50 0.97 CX(E) 70 0.58 CKC 80 0.97 SOUND POWER AND SOUND PRESSURE LEVELS INDOOR UNIT MAXIMUM SOUND POWER LEVELS...
  • Page 6 1 PH 230V 50Hz INPUT POWER FULL LOADS AMPS SYSTEM MAX. MODEL COOLING HEATING COOLING HEATING STARTING INDOOR/OUTDOOR CURRENT AMPS AMPS AMPS CX(E) 30 + CKC 20 13.8 CX(E) 40 + CKC 30 13.8 CX(E) 50 + CKC 50 13.8 CX(E) 70 + CKC 80 12.3 13.8...
  • Page 7 CX(E) DIMENSIONS ELECTRICAL DATA 888 (Fixing centres) 17.5 TOP VIEW (Ceiling Mounted) 17.5 MIN. MIN. SIDE VIEW FRONT VIEW SIDE VIEW (Wall mounted) (Wall mounted) (Ceiling mounted) X = Interconnecting Wiring = Suction MIN. 500 = Liquid / Expansion FOR SIDE ACCESS 65 TYP.
  • Page 8: Installation

    INSTALLATION CONTENTS PARTS DESCRIPTION ACTION Envelope containing operating instructions and Pass to the end user. Declaration of Conformity Mounting brackets Use to hang unit. Drain Stub/Nut/Gasket Fitted by installer. Convert to ¾" drain if required. Drain stub adaptor Screw M5 To fix brackets to unit.
  • Page 9 MAXIMUM EQUIVALENT LENGTH OF SUCTION LINE PIPE SIZES (m) LIQUID LINE SYSTEM 3/8" 1/2" 5/8" 1/4" 3/8" CXE40 + CKC20 CXE50 + CKC40 CXE70 + CKC60 B. USING SUCTION AND EXPANSION LINES The expansion assembly must be removed from the indoor unit and connected to the outdoor unit allowing a pipe run of up to 80m, including a maximum lift of 20m (CKC20 maximum 50m with 7.5m lift).
  • Page 10 INTERCONNECTING PIPEWORK The indoor unit has a low pressure charge of N , which may be safely released into the atmosphere before connection. The service valves on the outdoor unit should remain closed (IN, fully clockwise) until pipework has been fitted and system evacuated. Connecting the pipework a.
  • Page 11 NOTE: All refrigerant charges shown below are in grams NEW CX 17 SERIES MATCHED WITH NEW CKC 17 SERIES LIQUID LINE (m) PART NUMBER SYSTEM CX (NEW) CXE (NEW) CKC (NEW) CX(E)30 + CKC20 55917001 55917017 55017720 1024 CX(E)40 + CKC30 55917002 55917016 55017730...
  • Page 12 LOW TEMPERATURE MATCH LIQUID LINE NEW CX/OLD CKC PART NUMBER SYSTEM CX (NEW) CXE (NEW) CKC (OLD) CX(E)40 + CKC20 55917002 55917016 55000720 1273 1573 R407C CX(E)50 + CKC40 55917003 55917015 55000741 1279 1579 1879 CX(E)70 + CKC60 55917004 455917015 55000740 1463 1763...
  • Page 13: Electrical Connections

    Run the system for a few minutes to allow it to stabilize. Where possible, charge to a sweat line on the evaporator. Typical suction pressure on short lines at UK conditions should be approx. 3.8bar (55 psig). Head pressure controller The head pressure controller is factory set to suit the refrigerant.
  • Page 14 WIRING DIAGRAM 14/19 55908014-17...
  • Page 15: On/Off Switch

    CXE ELECTRONIC COOLING SYSTEM CONTROLS CAREL IR33 Controller ON/OFF SWITCH The switch operates the fan motor and is illuminated when power is supplied to the indoor unit. When switched OFF, the fan stops, the switch remains illuminated and the crankcase heater in the outdoor unit (if fitted) remains live. Systems (STD) Minimum Set Indoor...
  • Page 16 CKC INSTALLATION Eliwell ICPlus 915 Controller TEMPERATURE CONTROL (Do not set the controller below 4°C.) The SET temperature is factory set at 12°C. 12°C – 23°C The digital display normally displays return air temperature active, the ‘SP1’ label appears. To change the SET temperature, press the SET button. If no alarms are Press SET button again, the setpoint value appears on the display.
  • Page 17 MODEL CKC 20 CKC 30 CKC 50 1000 CKC 80 1000 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. Performance is based on 7.5m pipe runs. Correctly sized pipes for each installation will result in no significant loss of capacity on extended pipe runs.
  • Page 18 CX 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) INSIDE VIEW OF ELECTRICS BOX...
  • Page 19 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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