Carrier Pro-Dialog Plus 30SZ, Installation, Operation And Maintenance Instructions

Page 1: ...Hz Installation operation and maintenance instructions For the operation of the control please refer to the Pro Dialog Control manual for the 30SZ SZV series Carrier is participating in the Eurovent Certification Programme Products are as listed in the Eurovent Directory of Certified Products ...

Page 2: ...2 The cover graphics are for illustrative purposes only and are not contractually binding ...

Page 3: ...TIONS 12 6 1 Refrigerant line connections 30SZV 14 6 2 Electrical connections 18 6 3 Liquid refrigerant charge 18 7 START UP 20 7 1 Necessary checks precautions before start up 20 7 2 Initial checks 20 7 3 Refrigerant system description 20 7 4 Compressor replacement 20 7 5 Description of unit protection devices 20 7 6 Operating limits 21 8 GENERAL MAINTENANCE 21 8 1 Electrical connections 21 8 2 H...

Page 4: ... DATA Condenser Evaporator Entering water temp o C Entering water temp o C Leaving water temp o C Leaving water temp o C Pressure drop water kPa Pressure drop water kPa SAFETY DEVICE SETTING High pressure switch cut out kPa cut in kPa Low pressure switch cut out kPa cut in kPa Step controller cut out 1st step o C cut in 1st step o C cut out 2nd step o C cut in 2 nd step o C Oil level Oil visible i...

Page 5: ...ome of the refrigerant circuit elements could reach a temperature in excess of 70o C so only trained or qualified personnel should access areas protected by access panels This unit should not be installed in an explosive atmosphere The unit can operate in normal radioelectric atmospheres in residential commercial and light industrial installations For other applications please consult Carrier ATTE...

Page 6: ...40 340 331 ZG mm 349 354 359 363 367 370 432 457 457 463 Measured from point A All dimensions are in mm Weight distribution approx 30SZ 004 005 006 007 009 011 018 024 027 036 1 30 32 34 42 48 52 94 116 120 130 2 36 37 40 50 56 61 98 119 122 132 3 18 18 19 24 30 32 112 122 124 133 4 21 23 23 28 34 37 120 123 126 135 30SZV 004 005 006 007 009 011 018 024 027 036 1 24 25 26 33 39 43 76 94 94 96 2 33...

Page 7: ...t the unit on the floor or on a solid platform Use an isolation pad under the unit to reduce sound transmission Use flexible joints in the water piping to reduce sound transmission from the units 2 5 Vertical and horizontal installation These units can be modularly installed either vertically or horizontally Do not stack more than three units for sizes 004 011 or more than 2 units for sizes 018 03...

Page 8: ...rip the unit weight must be considered Punch holes into the insulation strips to align with the lifting hooks Fig Vertical installation sizes 018 036 Vibration absorbers can also be installed as shown in Fig Vertical installation sizes 018 036 4 Place the other unit above the lower unit so that the holes through which the U frame of the bottom panel of each unit is secured are aligned with the hol...

Page 9: ...t transport the compressor is held down by bolts and plain lock washers see Fig Assembly for transportation After the unit is installed remove these bolts one at a time and reassemble with flanged washers and neoprene snubbers as shown using new self locking bolts supplied with the unit Tighten the new bolts until the head bolt comes into contact with the flanged washer then loosen each bolt until...

Page 10: ...35 C Evaporator leaving water temperature 10 C condenser entering water temperature 50 C condenser leaving water temperature 55 C Evaporator entering water temperature 12 C evaporator leaving water temperature 7 C condensing temperature dewpoint 50 C Evaporator leaving water temperature 10 C condensing temperature dewpoint 60 C Electrical data notes 30SZ SZV units have a single power connection po...

Page 11: ...Z 018 036 All dimensions are in mm Nominal power supply 400 3 50 NOTE When designing an installation refer to the certified drawings available on request Legend 1 Discharge line 2 Liquid line A Condenser B Evaporator 30SZV 004 011 30SZV 018 036 ...

Page 12: ...All piping must be adequately insulated Installation of the following components is OBLIGATORY 1 A flow switch should be installed in a straight horizontal stretch with a length of at least five times the line diameter on either side It must be positioned in the evaporator inlet pipe and must be electrically connected in accordance with the wiring diagram The installation should incorpo rate a pro...

Page 13: ... Flexible coupling Legend 1 Water chiller 30SZV 2 Fan coil units 3 Water circulating pump 4 Inertia accumulator 5 Expansion vessel 6 Pressure gauges at pressure intake 7 Manual shut off valves 8 Mesh filter 9 Pressure inlets 10 Thermometers 11 Flow switch 12 Automatic purge 13 Drain 14 Charge valve 15 Flexible coupling 16 Condenser Typical hydraulic installation 30SZ Typical hydraulic installation...

Page 14: ...pes linking the compressor outlet with the condenser inlet must be limited to avoid system performance losses the compressor power input inceases and the cooling capacity decreases As a first estimate and for standard air conditioning applica tions a one degree Celsius pressure drop on the discharge side decreases the cooling capacity 2 and increases the compres sor power input by 3 Increasing the...

Page 15: ... tube 30SZV Saturated suction temperature C Cond temp 18 12 7 1 4 10 C S HG L S HG L S HG L S HG L S HG L S HG L 27 2 01 1 36 1 09 1 61 1 34 1 07 1 31 1 30 1 06 1 07 1 26 1 04 0 89 1 23 1 03 0 74 1 19 1 01 32 2 11 1 27 1 08 1 69 1 23 1 06 1 37 1 19 1 04 1 12 1 16 1 03 0 93 1 12 1 01 0 77 1 09 1 00 38 2 22 1 17 1 08 1 78 1 13 1 06 1 44 1 10 1 04 1 18 1 06 1 02 0 97 1 03 1 01 0 81 1 00 0 99 43 2 34 ...

Page 16: ...ng Liquid piping Legend 1 1 2 2 3 8 3 3 4 4 7 8 5 1 1 8 6 1 3 8 7 1 5 8 8 2 1 8 Legend 1 3 8 2 1 2 3 5 8 4 3 4 5 7 8 6 1 1 8 7 1 3 8 Cooling capacity kW Equivalent length m Cooling capacity kW Equivalent length m 10 100 1000 3 4 5 20 30 40 50 200 300 400 500 1 2 3 4 5 6 7 8 10 100 30 20 40 50 2 3 4 5 200 ...

Page 17: ... H 30SZ 024 I 30SZ 027 J 30SZ 036 A 30SZ SZV 004 B 30SZ SZV 005 C 30SZ SZV 006 D 30SZ SZV 007 E 30SZ SZV 009 F 30SZ SZV 011 G 30SZ SZV 018 H 30SZ SZV 024 I 30SZ SZV 027 J 30SZ SZV 036 Ethylene glycol in water Water flow rate l s Water flow rate l s Ethylene glycol curve Evaporator water pressure drop 0 20 40 60 80 100 15 5 5 0 10 20 45 35 25 30 40 50 60 55 65 1 2 3 4 5 6 7 8 10 20 30 40 50 60 70 8...

Page 18: ...he applicable legislation 6 2 1 Inserting line power leads into the unit Install airtight cable conduit connectors through the knockouts provided Route all cables across the connectors to the terminal blocks in the control box Use copper cables for the power supply into the unit 6 3 Liquid refrigerant charge 6 3 1 Checking the charge WARNING When adjusting the refrigerant charge always ensure that...

Page 19: ...r units charged with refrigerant R 407C A refrigerant leak in the liquid or vapour phase will have an effect on the composition of the remaining fluid NOTE Regularly carry out leak checks and immediately repair any leak found 6 3 4 Undercharge If there is not enough refrigerant in the system this is indicated by gas bubbles in the moisture sight glass There are two possiblities Small undercharge b...

Page 20: ...t circuit incorporates the following principal elements Plate heat exchanger made of brazed steel The special shape of these plates makes them very efficient Copper refrigerant lines Expansion valve Compressors hermetic or semi hermetic Filter drier Schrader valves Safety elements high pressurestats fusible plugs High pressure low pressure and oil pressure sensor 30SZV 018 036 Liquid solenoid valv...

Page 21: ...control configuration by Carrier Service 8 GENERAL MAINTENANCE ATTENTION Before starting any servicing or maintenance operation on the unit make sure that the power supply has been disconnected A current discharge could cause personal injury In order to obtain maximum performance from the unit special attention should be paid to the following points 8 1 Electrical connections The supply voltage sh...

Page 22: ... rods If the total unit gas charge has to be replaced the quantity should be as given on the nameplate and the unit should be properly evacuated beforehand During unit operation all panels should be in place including the electrical box access panel If it is necessary to cut the lines of the refrigerant circuit tube cutters should always be used and never tools which produce burrs All refrigerant ...

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Page 24: ...76 11 2000 Supersedes order No New Manufactured by Carrier SA Montluel France Manufacturer reserves the right to change any product specifications without notice Printed in the Netherlands on totally chlorine free paper ...