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Carrier Aquasnap 30RQ, Installation, Operation And Maintenance Instructions

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Carrier Aquasnap 30RQ Installation, Operation And Maintenance Instructions Download Page 36

Order No: R3446-76, 01.2008 - Supersedes order No: R3446-76, 11.2005 

Manufacturer: Carrier SCS, Montluel, France.

Manufacturer reserves the right to change any product specifications without notice. 

Printed in the Netherlands on chlorine-free paper.

13 - lIsT OF ChECKs TO BE CaRRIED OUT BY ThE INsTallER BEFORE CallINg CaRRIER sERvICE FOR 
UNIT MaINTENaNCE

Is there any shipping damage? ....................................................  If so, where? ...............................................................................
.................................................................................................................................................................................................................
Will this damage prevent unit start-up? .............................................................................................................................................

  Unit is level in its installation
  Power supply agrees with the unit nameplate
  Electrical circuit wiring has been sized and installed properly
  Unit ground wire has been connected
  Electrical circuit protection has been sized and installed properly
  All customer connection terminals (power) are tight

   All chilled water valves are open
  The chilled water pipes are correctly connected
  The air present in the chilled-water circuit has been purged
  The chilled-water pump uses the correct rotation direction. Check the phase sequence of the electrical connection. If 

the unit is equipped with a hydronic module, use the pump test function (refer to the 30RB/RQ Pro-Dialog Plus control 
manual). After the pump test has been completed, switch the unit off again.

  Circulate chilled water in the water circuit for at last two hours, then remove, clean and replace the screen filter. After 

the pump test has been completed, switch the unit off again

  Inlet piping to water heat exchanger includes a 20 mesh strainer with a mesh size of 1.2 mm
  The compressor flange has been removed

Unit start-up

  Never energise the unit before the intervention of Carrier service personnel (except for the pump rotation direction 

check, see previous chapter)

  The chilled-water pump contactor has been correctly connected to the heat pump (unit without hydronic module)

Check water heat exchanger water loop

Water loop volume =   ..................................... (litres)
Calculated volume =  ....................................... (litres)
3.25 litres/nominal kW capacity for air conditioning
6.5 litres/nominal kW capacity for process cooling

  Proper loop volume established
   Proper loop corrosion inhibitor included ............litres of .......................................................
  Proper loop freeze protection included (if required) .............litres of ............................................
   The system piping is equipped with strip heaters, if exposed to temperatures below 0°C

NOTES:

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Summary of Contents for Aquasnap 30RQ

Page 1: ...nstallation operation and maintenance instructions Unit with Euro Pack option shown Carrier participe au programme de certification EUROVENT Les produits figurent dans l Annuaire EUROVENT des produits certifiés Carrier is participating in the Eurovent Certification Programme Products are as listed in the Eurovent Directory of Certified Products Библиотека СОК ...

Page 2: ...pplication data 13 6 1 Unit operating range 13 6 2 Minimum chilled water flow units without hydronic module 13 6 3 Maximum chilled water flow units without hydronic module 13 6 4 Variable flow water heat exchanger 14 6 5 Minimum system water volume 14 6 6 Maximum system water volume 14 6 7 Water heat exchanger flow rate 14 7 ELECTRICAL CONNECTION 15 7 1 Power supply 15 7 2 Voltage phase imbalance ...

Page 3: ...es 26 11 options AND accessoires 27 11 1 Heat reclaim option using desuperheaters 27 11 2 Option 241 32 11 3 Other options and accessories 33 12 STANDARD MAINTENANCE 34 12 1 Level 1 maintenance see note 34 12 2 Level 2 maintenance see note 34 12 3 Level 3 or higher maintenance see note 34 12 4 Tightening torques for the main electrical connections 34 12 5 Tightening torques for the main bolts and ...

Page 4: ...upon receipt immediately file a claim with the shipping company Do not remove the skid or the packaging until the unit is in its final position These units can be moved with a fork lift truck as long as the forks are positioned in the right place and direction on the unit The units can also be lifted with slings using only the desig nated lifting points marked on the unit labels on the chassis and...

Page 5: ... site once a year high pressure switches and every five years for external overpressure devices safety globe valves Check manual 30RB RQ Pro Dialog Plus control for a detailed explanation of the high pressure switch test method At least once a year thoroughly inspect the protection devices valves If the machine operates in a corrosive environment inspect the protection devices more frequently Regu...

Page 6: ...ump water flow switch etc Periodically inspect all valves fittings and pipes of the refrigerant and hydronic circuits to ensure that they do not show any corrosion or any signs of leaks It is recommended to wear ear defenders when working near the unit and the unit is in operation 2 Moving and siting the unit 2 1 Moving See chapter Installation safety considerations 2 2 Siting the unit Always refe...

Page 7: ... certificates name plates files instruction manuals that are required documents required by the current European standards are present Verify the free passage of access and safety routes Verify the instructions and directives to prevent the deliberate removal of refrigerant gases Verify the installation of connections Verify the supports and fixing elements materials routing and connection Verify ...

Page 8: ...nd Clearances required for maintenance and air flow Clearances recommended for heat exchanger tube removal Clearances recommended for heat exchanger removal Water inlet Water outlet Air outlet do not obstruct NOTE Non contractual drawings When designing an installation refer to the certified dimensional drawings available on request For the positioning of the fixing points weight distribution and ...

Page 9: ... With hydronic module Without hydronic module Power connection For user control connection 30RQ X Y 302 402 3604 200 432 522 4798 0 Water inlet Water outlet Air outlet do not obstruct NOTE Non contractual drawings When designing an installation refer to the certified dimensional drawings available on request For the positioning of the fixing points weight distribution and centre of gravity coordin...

Page 10: ...safety valve expansion tank pressure gauge purge valves water and air and water flow control valves Water pump Centrifugal monocell 48 3 r s low or high pressure as required single or dual pump Quantity 1 1 1 1 1 1 1 1 Expansion tank volume l 50 80 80 80 80 80 80 80 Max water side operating pressure with hydronic module kPa 400 400 400 400 400 400 400 400 Water connections without hydronic module ...

Page 11: ...imit values maximum operating current of the smallest compressor s fan current locked rotor current of the largest compressor Fan motor electrical data current draw used in the tables above units at Eurovent conditions and 50 C ambient air temperature around the motor at 400 V 3 8 A start up current 20 A power input 1 75 kW These values are indicated on the motor name plate 5 1 Short circuit stabi...

Page 12: ...he maximum unit current draw from the electrical data table in section 5 to the pump current draw in the table above 5 3 Compressor usage and electrical data Compressor I Nom I Max I Max LRA Cosine Circuit 262 302 342 372 402 432 462 522 Un Un 10 Un Phi max SH240 30 40 44 215 0 86 A 3 4 4 B 3 SH300 38 51 56 260 0 86 A 2 3 4 4 4 B 2 2 2 2 2 4 4 Legend I Nom Nominal current draw at Eurovent conditio...

Page 13: ...Operating range 30RQ Cooling mode ATTENTION Option 28 Winter operation If the outside temperature is below 10 C and the unit has been switched off for more than 4 hours it is necessary to wait 2 hours after the unit has been switched on again to allow the frequency converter to warm up 6 2 Minimum chilled water flow units without hydronic module The minimum chilled water flow is shown in the table...

Page 14: ...k must itself be internally baffled in order to ensure proper mixing of the liquid water or brine Refer to the examples below 6 6 Maximum system water volume Units with hydronic module incorporate an expansion tank that limits the water volume The table below gives the maximum loop volume for pure water or ethylene glycol with various system concentrations as well as the static pressures If the ma...

Page 15: ...ecommendations of IEC 60364 are accepted as compliance with the requirements of the installation directives Conformance with EN 60 204 is the best means of ensuring compliance with the Machines Directive 1 5 1 Annex B of EN 60204 1 describes the electrical characteristics used for the operation of the machines 1 The operating environment for the 30RQ units is specified below Environment Environmen...

Page 16: ...ional drawing for the unit Table of minimum and maximum wire sections for connection to 30RQ units Max connectable Min wire section Max wire section section 30RQ Section mm2 Section mm2 Max length m Wire type Section mm2 Max length m Wire type 262 1 x 240 or 2 x 150 1 x 95 178 XLPE Cu 2 x 95 260 XLPE Al 302 2 x 240 1 x 120 197 XLPE Cu 2 x 120 280 XLPE Al 342 2 x 240 1 x 120 185 XLPE Cu 2 x 150 300...

Page 17: ...circuit must be emptied for longer than one month the complete circuit must be placed under nitrogen charge to avoid any risk of corrosion by differential aeration Charging and removing heat exchange fluids should be done with devices that must be included on the water circuit by the installer Never use the unit heat exchangers to add heat exchange fluid 8 WATER CONNECTIONS For diameters and posit...

Page 18: ...on option Legend Components of the unit and hydronic module 1 Victaulic screen filter 2 Expansion tank 3 Safety valve 4 Available pressure pump 5 Pressure tap 6 Pressure gauge to measure the component pressure drop 7 Pressure gauge system drain valve 8 Drain valve 9 Flow control valve 10 Heat exchanger 11 Water heat exchanger defrost heater 12 Hydronic module defrost heater 13 Air vent water heat ...

Page 19: ...on is installed frost protection of this module is included electric heater If protection by electric heater is used do not switch off the power supply to the unit IMPORTANT The main unit disconnect switch the auxiliary heater protection switch as well as the control circuit switch must always remain closed to locate the components please refer to the wiring diagram 8 5 Operation of two units in m...

Page 20: ...e available to control the heater contactors not supplied with the board permitting gradual compensation of the heat pump capacity reduction These outputs are configurable to obtain a choice of two three or four stages The last stage will only be activated after a shut down of the heat pump following a fault condition safety device In the diagram below example of additional electric heaters the ca...

Page 21: ... supplied by the heat pump and the thermal load of the building Operating range in which the heat pump capacity is lower than the building thermal load Operating range in which the heat pump capacity is higher than the building thermal load Outdoor air temperature C Pump capacity Example of additional electric heaters 1 A 2 3 4 B 120 100 80 60 40 20 0 15 10 5 0 5 10 15 1 1 2 C ...

Page 22: ...r pressure drop by taking the difference of the readings of the pressure gauge connected to the filter inlet and outlet using valves see typical hydronic circuit diagrams and comparing this value after two hours of operation If the pressure drop has increased this indicates that the screen filter must be removed and cleaned as the hydronic circuit contains solid particles In this case close the sh...

Page 23: ...sure pumps Legend 1 30RQ 262 2 30RQ 302 342 3 30RQ 372 402 432 4 30RQ 462 522 Pressure supplied kPa Water flow rate l s Pressure supplied kPa Water flow rate l s High pressure pumps Legend 1 30RQ 262 2 30RQ 302 342 3 30RQ 372 402 432 4 30RQ 462 522 ...

Page 24: ... flow rate l s Legend 1 30RQ 262 2 30RQ 302 3 30RQ 342 4 30RQ 372 5 30RQ 402 432 6 30RQ 462 522 Legend 1 30RQ 262 2 30RQ 302 3 30RQ 342 4 30RQ 372 5 30RQ 402 432 6 30RQ 462 522 0 25 50 75 100 125 150 175 200 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 5 3 6 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 5 3 6 ...

Page 25: ...ated bearings and insulation class F 10 5 Electronic expansion valve EXV The EXV is equipped with a stepper motor 2785 to 3690 steps depending on the model that is controlled via the EXV board The EXV is also equipped with a sightglass that permits verifi cation of the mechanism movement and the presence of the liquid gasket 10 6 Moisture indicator Located on the EXV permits control of the unit ch...

Page 26: ... or repair must be shown in the monitoring and maintenance file Recycling The unit is wholly or partly recyclable After use it contains refrigerant vapours and oil residue It is coated by paint Operating life This unit is designed for prolonged storage of 15 years under nitrogen charge with a temperature difference of 20 K per day 452000 cycles start ups with a maximum difference of 6 K between tw...

Page 27: ...e kW kW 276 302 335 366 407 445 505 552 Opersting weight Standard unit desuperheater option kg 2510 3140 3330 3340 3560 4140 4300 4520 Unit with Euro Pack desuperheater option kg 2700 3380 3570 3650 3820 4440 4530 4830 Unit with Euro Pack desuperheater hydronic module options with high pressure dual pump kg 2890 3580 3780 3870 4040 4650 4770 5110 Desuperheater in circuits A B Plate heat exchangers...

Page 28: ...esigning an installation refer to the certified dimensional drawings available on request For the positioning of the fixing points weight distribution and centre of gravity coordinates Cylindrical gas thread desuperheater side Cylindrical gas thread desuperheater side Clearances required for maintenance and air flow 1 2 3 Legend All dimensions are in mm Water inlet evaporator and desuperheater Cle...

Page 29: ...esuperheater side Clearances required for maintenance and air flow 1 2 3 Legend Water inlet evaporator and desuperheater Clearances recommended for evaporator tube removal Clearances recommended for heat exchanger removal Water outlet evaporator and desuperheater Air outlet do not obstruct NOTE Non contractual drawings When designing an installation refer to the certified dimensional drawings avai...

Page 30: ...r multi pipe type 2 Compressor 3 Desuperheater plate heat exchanger 4 Air heat exchanger coils 5 Expansion valve EXV 6 Safety valve 7 Electric heater to protect the desuperheater against frost not supplied 8 Desuperheater insulation not supplied 9 Units control box 10 Heating cooling cycle four way reversing valve 11 Desuperheater water inlet 12 Desuperheater water outlet 13 Evaporator water inlet...

Page 31: ...op must include a safety valve and an expansion tank When selecting these consider the water loop volume and the maximum temperature 120 C when pump operation is stopped item 20 11 1 5 Operating range Cooling mode Minimum Maximum Water heat exchanger evaporator Entering water temperature at start up C 6 8 30 Leaving water temperature during operation C 5 15 Entering water temperature at shut down ...

Page 32: ...ater temperature at the desuperheater and the condenser entering air temperature 0 0 2 0 4 0 6 0 8 1 1 2 1 4 1 6 1 8 2 40 45 50 55 60 A B C Desuperheater entering water temperature C Coefficient of the reclaimed heating capacoty A Entering air temperature 45 C B Entering air temperature 35 C C Entering air temperature 20 C 11 2 Option 241 During transport in a closed container the refrigerant char...

Page 33: ... jacket 88A Evaporator and water piping thermal insulation protection by aluminium sheets Improved resistance to climatic aggression 30RQ 262 522 Low pressure single pump hydronic module 116 See hydronic module chapter Easy and fast installation 30RQ 262 522 Low pressure dual pump hydronic module 116A See hydronic module chapter Easy and fast installation operating safety 30RQ 262 522 High pressur...

Page 34: ...ANCE Air conditioning equipment must be maintained by professional technicians whilst routine checks can be carried out locally by specialised technicians Simple preventive maintenance will allow you to get the best performance from your HVAC unit improved cooling performance reduced power consumption prevention of accidental component failure prevention of major time consuming and costly interven...

Page 35: ...f the following coil finishes Cu Al Cu Al with Italcoat protection It is not necessary to rinse the coil as the products used are pH neutral To ensure that the coil is perfectly clean we recommend rinsing with a low water flow rate The pH value of the water used should be between 7 and 8 WARNING Never use pressurized water without a large diffuser Do not use high pressure cleaners Concentrated and...

Page 36: ...nit is equipped with a hydronic module use the pump test function refer to the 30RB RQ Pro Dialog Plus control manual After the pump test has been completed switch the unit off again Circulate chilled water in the water circuit for at last two hours then remove clean and replace the screen filter After the pump test has been completed switch the unit off again Inlet piping to water heat exchanger ...

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