Marstair CX Series Technical Manual

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TECHNICAL MANUAL

CX(E) SPLIT SYSTEMS

CX(E) LOW TEPERATURE SPLIT SYSTEMS

55908014-19

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Summary of Contents for Marstair CX Series

Page 1 TECHNICAL MANUAL CX(E) SPLIT SYSTEMS CX(E) LOW TEPERATURE SPLIT SYSTEMS 55908014-19...
Page 2 INDEX CONTENTS PAGE PART NUMBERS, UNIT COMBINATIONS, OPTIONS DIMENSIONS & WEIGHTS, PERFORMANCE DATA AIR FLOW, SOUND POWER AND SOUND PRESSURE LEVELS ELECTRICAL DATA CX(E) DIMENSIONS INSTALLATION CKC PIPEWORK CKC REFRIGERANT ELECTRICAL: CONNECTIONS & FUSES CX MATCHES WIRING DIAGRAMS CX(E) CONTROLS CKC INSTALLATION: DIMENSIONS COMPONENT IDENTIFICATION CX(E) UNITS...
Page 3 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 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 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 SOUND PRESSURE LEVELS SPEED...
Page 6 ELECTRICAL DATA 1 PH 230V 50Hz INPUT POWER FULL LOADS AMPS SYSTEM MAX. MODEL STARTING COOLING HEATING COOLING HEATING 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...
Page 7 CX(E) DIMENSIONS 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 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. Drain stub adaptor Convert to ¾" drain if required. Screw M5 To fix brackets to unit.
Page 9 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). CX(E) units only, remove the right hand panel cover plate from the indoor unit and remove the expansion assembly.
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 Head pressure controller 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 12 CX 17 SERIES MATCHED WITH NEW CKC 20 SERIES PART NUMBER LIQUID LINE (m) SYSTEM CX(E)30 + CKC20 55917001 55917017 55020720 1024 CX(E)40 + CKC30 55917002 55917016 55020730 1184 1484 1784 R407C CX(E)50 + CKC50 55917003 55917015 55020722 1286 1586 1886 2186 CX(E)70 + CKC80 55917004 55917014 55020723...
Page 13 WIRING DIAGRAM 13/18 55908014-19...
Page 14 14/18 55908014-19...
Page 15 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 MOUNTING Whether floor or wall mounted, it is essential that the mounting surface is capable of supporting the unit weight. Leave space around the unit for air circulation and access for installation and maintenance. Dimensions in mm. MODEL CKC 20 CKC 30 CKC 50...
Page 17 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 18 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 18/18 55908014-19...

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