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10.3 - Water heat exchanger water flow rate

30RQS/
RQSY

Flow rate, l/s

Minimum

Maximum*

Maximum dual pump**

Low pressure*** High pressure***

039

0.9

3.0

2.9

3.4

045

0.9

3.4

3.2

3.8

050

0.9

4.2

3.7

4.4

060

0.9

5.0

4.1

5.0

070

1.0

5.0

4.1

5.0

078

1.2

5.5

4.4

5.2

080

1.2

6.8

5.1

6.2

090

1.3

6.8

5.1

6.2

100

1.5

7.7

6.3

6.5

120

1.7

8.5

6.5

8.0

140

2.0

10.6

7.9

8.7

160

2.3

11.2

8.2

8.9

*  Maximum flow rate at a pressure drop of 100 kPa in the plate heat exchanger 

(unit without hydronic module).

**  Maximum flow rate at an available pressure of 20 kPa (unit with low-pressure 

hydronic module) or 50 kPa (high-pressure module). 

***  Maximum flow rate with single pump is 2 to 4% higher, depending on the size

10.4 - Minimum water flow rate

If the installation flow rate is below the minimum flow rate, 
there is a risk of excessive fouling.

10.5 - Maximum water heat exchanger water flow rate

This is limited by the permitted water heat exchanger 
pressure drop. Also, a minimum water heat exchanger ∆T of 
2.8 K must be guaranteed, which corresponds to a water flow 
rate of 0.09 l/s per kW.

10.6 - Water loop volume

10.6.1 - Minimum water loop volume

The minimum water loop volume, in litres, is given by the 
following formula:

Volume (l) = CAP (kW) x N, where CAP is the nominal 
cooling capacity at nominal operating conditions.

Application

N

Air conditioning

2.5*

Industrial process cooling               

(See note)

*  For sizes 039 to 120, N can be increased up to 4 depending on the size of the 

hot-water loop to prevent a water temperature drop during the defrost cycle.

NOTE:

 For industrial process cooling applications, where high stability of the water 

temperature levels must be achieved, the values above must be increased.

This volume is required to obtain temperature stability and 
precision. To achieve this volume, it may be necessary to add 
a storage tank to the circuit. This tank should be equipped with 
baffles to allow mixing of the fluid (water or brine). Please 
refer to the examples below.
For the Buffer Tank Module option, the tank volume must 
be taken into account: 250 litres.

 

Bad

Good

Bad

Good

10.6.2 - Maximum water loop volume

Units with hydronic module incorporate an expansion tank 
that limits the water loop volume. The table below gives the 
maximum loop volume for pure water or ethylene glycol with 
various concentrations.

30RQS/RQSY

039-078 without buffer 

tank

080-160 without buffer 

tank

Static pressure

bar

1

2

3

1

2

3

Pure water

litres

597

398

199

1741

1161

580

10% ethylene glycol

l

471

314

157

1373

915

458

20% ethylene glycol

l

389

259

130

1135

757

378

30% ethylene glycol

l

348

232

116

1014

676

338

40% ethylene glycol

l

289

193

96

843

562

281

30RQS/RQSY

039-078 with buffer 

tank

080-160 with buffer 

tank

Static pressure

bar

1

2

3

1

2

3

Pure water

litres

896

597

299

1741

1161

580

10% ethylene glycol

l

706

471

235

1373

915

458

20% ethylene glycol

l

584

389

195

1135

757

378

30% ethylene glycol

l

522

348

174

1014

676

338

40% ethylene glycol

l

434

289

145

843

562

281

If the total system volume is higher than the values given 
above, the installer must add another expansion tank, suitable 
for the additional volume. 

Note : Take into account the buffer tank volume (250 litres)

11 - ELECTRICAL CONNECTION

11.1 - Control box

Please refer to the certified dimensional drawings, supplied 
with the unit.

11.2 - Power supply

The power supply must conform to the specification on the 
heat pump nameplate. The supply voltage must be within the 
range specified in the electrical data table. For connec-tions 
refer to the wiring diagrams and the certified dimen-sional 
drawings.

WARNING: Operation of the heat pump with an improper 
supply voltage or excessive phase imbalance constitutes 
abuse which will invalidate the Carrier warranty. If the 
phase imbalance exceeds 2% for voltage, or 10% for current, 
contact your local electricity supply at once and ensure that 
the heat pump is not switched on until correc-tive measures 
have been taken.

11.3 - Voltage phase imbalance (%)

100 x max. deviation from average voltage 

Average voltage

Example:

On a 400 V - 3 ph - 50 Hz supply, the individual phase voltages 
were measured to be:
AB = 406 V; BC = 399 V; AC = 394 V

Average voltage = (406 + 399 + 394)/3 = 1199/3
 

 

= 399.7 say 400 V

Calculate the maximum deviation from the 400 V average:
(AB) = 406 - 400 = 6

Summary of Contents for 30RQS039

Page 1: ...I O N S Reversible Air to Water Heat Pumps 30RQS 30RQSY 039 160 A Original instructions Nominal cooling capacity 40 160 kW 50 Hz Touch Pilot Junior For the operation of the control please refer to th...

Page 2: ...without filter frame 16 4 6 30RQSY 050 078 option 23B units with and without hydronic module with filter frame 17 4 7 30RQSY 080 120 units with and without hydronic module 18 4 8 30RQSY 140 160 units...

Page 3: ...ressors 43 15 2 Lubricant 43 15 3 Air evaporator condenser 43 15 4 Fans 43 15 5 Electronic expansion valve EXV 43 15 6 Moisture indicator 43 15 7 Filter drier 43 15 8 Water evaporator condenser 44 15...

Page 4: ...are equipped with variable speed fans with a maximum speed of 19 r s to ensure an optimised air flow rate In the cooling mode the full load or part load speed is controlled by a patented algorithm th...

Page 5: ...nd national usage monitoring regulations in the European Uniontheprotectiondevicesforthesemachinesareclassified as follows Safety accessory Damage limitation accessory in case of an external fire Refr...

Page 6: ...OPERATING CHECKS Important information regarding the refrigerant used Thisproductcontainsfluorinatedgreenhousegascoveredbythe Kyoto protocol Fluid type R410A GlobalWarming Potential GWP 2088 Relief v...

Page 7: ...ify and and record the set points of pressure switchesandreliefdevices valvesandpossiblerupture discs Be ready to switch off the main disconnect switch of thepowersupplyifthepressureswitchdoesnottrigg...

Page 8: ...itionanysafetydeviceswhen corrosion or build up of foreign material rust dirt scale etc is found within the valve body or mechanism If necessary replace the device Do not install relief valves in seri...

Page 9: ...tening measures have been taken if the unit has to operate as a heat pump in temperatures below 0 C it must be raised at least 300 mm from the ground Thisisnecessarytoavoidicebuild up on the unit chas...

Page 10: ...air heat exchanger is on two unit sides It is therefore necessary to install two additional brackets to allow connection of the heat exchanger suction duct These parts are inside the machine and fixe...

Page 11: ...ducts The fan protection grilles can be removed to increase the available pressure At the beginning of each duct provide an access hatch with minimum dimensions of 700 x 700 mm to allow motor replace...

Page 12: ...location of fixing points weight distribution and coordinates of the centre of gravity refer to the certified dimensional drawings B In multiple unit installations maximum four units the side clearan...

Page 13: ...entre of gravity refer to the certified dimensional drawings B In multiple unit installations maximum four units the side clearance between the units should be increased from 1000 to 2000 mm C The hei...

Page 14: ...gs B Provide a gutter around the unit to collect the condensate water or install the accessory condensate collection pan 30RQSY 039 to 078 C The unit must be installed level less than 2 mm per metre d...

Page 15: ...pplied with the unit or available onrequest whendesigninganinstallation Forthelocationoffixingpoints weight distributionandcoordinatesofthecentreofgravityrefertothecertifieddimensional drawings B Prov...

Page 16: ...ith the unit or available on request when designing an installation For the location of fixing points weight distributionandcoordinatesofthecentreofgravityrefertothecertifieddimensional drawings B Pro...

Page 17: ...awings B Provide a gutter around the unit to collect the condensate water or install the accessory condensate collection pan 30RQSY 039 to 080 C The unit must be installed level less than 2 mm per met...

Page 18: ...mended clearances for maintenance Air outlet do not obstruct Power cable entry NOTES A Non certified drawings Refer to the certified dimensional drawings supplied with the unit or available on request...

Page 19: ...ecommended clearances for maintenance Air outlet do not obstruct Power cable entry NOTES A Non certified drawings Refer to the certified dimensional drawings supplied with the unit or available on req...

Page 20: ...fixing points weight distributionandcoordinatesofthecentreofgravityrefertothecertifieddimensional drawings B The unit must be installed level less than 2 mm per metre deviation in both axes Overall d...

Page 21: ...location of fixing points weight distributionandcoordinatesofthecentreofgravityrefertothecertifieddimensional drawings B The unit must be installed level less than 2 mm per metre deviation in both axe...

Page 22: ...lets and outlets 4 13 30RQS RQSY 140 160 units with desuperheater Position of the desuperheater inlets and outlets Unit water inlet and outlet Water inlet and outlet unit with option 49 4 11 30QBS RQS...

Page 23: ...Maximum total air flow l s 3692 3690 3910 5285 5284 5282 7770 7380 7376 7818 10568 10568 Maximum rotation speed r s 12 12 12 16 16 16 12 12 12 12 16 16 Water heat exchanger Direct expansion plate hea...

Page 24: ...draw A 26 29 33 36 42 53 53 55 62 77 85 106 Maximum unit current draw Un A 35 45 47 53 67 73 74 81 99 108 134 146 Maximum unit current draw Un 10 A 38 49 51 58 75 80 80 89 110 118 150 159 Customer sid...

Page 25: ...with rotating shroud Quantity 1 1 1 1 1 1 2 2 2 2 2 2 Maximum total air flow l s 3692 3690 3910 5278 4982 5267 7770 7380 7376 7818 9964 10534 Maximum speed r s 16 16 16 18 18 18 16 16 16 16 18 18 Wat...

Page 26: ...ximum unit current draw Un A 37 47 49 55 67 73 79 86 104 113 135 147 Maximum unit current draw Un 10 A 41 52 54 61 75 80 85 94 116 123 150 160 Customer side unit power reserve kW Customer reserve at t...

Page 27: ...ear of manufacture This information varies depending on the manufacturer and model at the time of incorporation Please refer to the motor name plates 4 Manufacturer s name and trademark commercial reg...

Page 28: ...ecifically designed I Altitudes above sea level m 1000 II Ambient air temperature C 55 IV Maximum air temperature C Please refer to the operating conditions given in this manual or in the specific con...

Page 29: ...power supply status and then prevent evaporator from frosting when heaters and boards are off NOTES Generally the recommendations of IEC 60364 are accepted as compliance with the requirements of the...

Page 30: ...en into account 250 litres Bad Good Bad Good 10 6 2 Maximum water loop volume Units with hydronic module incorporate an expansion tank that limits the water loop volume The table below gives the maxim...

Page 31: ...35 305 PVC Cu 070 1 x 95 1 x 95 1 x 35 220 XLPE Cu 1 x 50 350 PVC Cu 078 1 x 95 1 x 95 1 x 35 220 XLPE Cu 1 x 70 380 PVC Cu 080 1 x 95 1 x 95 1 x 35 220 XLPE Cu 1 x 70 380 PVC Cu 090 1 x 95 1 x 95 1 x...

Page 32: ...ce dure must be chemically neutral in relation to the materials and coatings to which they are applied This is also the case for the products originally supplied by Carrier ATTENTION Use of units in a...

Page 33: ...your area you must do the following when switching the unit off in winter Addethyleneglycolorpropyleneglycolwithanadequate concentration to protect the installation up to a temperature of 10 K below t...

Page 34: ...rleavingpressureinformation seeregulationmanual 11 Check valve If dual pump 12 Plate heat exchanger 13 Heater or tracer for frost protection Option 14 Flow sensor for water heat exchange 15 Buffer tan...

Page 35: ...ic module sizes 039 078 Dual pump shown Hydronic module sizes 080 160 Dual pump shown Hydronic module sizes 039 080 Dual pump and buffer tank shown Hydronic module sizes 090 160 Dual pump and buffer t...

Page 36: ...for cleaning the hydronic circuit Open the valve completely item 22 Start up the system pump Read the pressure drop of the plate heat exchanger as thedifferencebetweentheunitinletandoutletpressures i...

Page 37: ...s measured an decreased flow rate if a higher value than the set point is measured This flow rate variation is realised observing the minimum and maximum admissible unit flow rates as well as the mini...

Page 38: ...t is measured the flow rate is increased If a lower delta T value than the set point is measured the flow rate is decreased This flow rate variation is realised observing the minimum and maximum admis...

Page 39: ...low rate l s Water flow rate l s Water flow rate l s Water flow rate l s Legend 1 30RQS 30RQSY 039 2 30RQS 30RQSY 045 3 30RQS 30RQSY 050 4 30RQS 30RQSY 060 5 30RQS 30RQSY 070 6 30RQS 30RQSY 078 Legend...

Page 40: ...0RQSY 039 2 30RQS 30RQSY 045 3 30RQS 30RQSY 050 4 30RQS 30RQSY 060 5 30RQS 30RQSY 070 6 30RQS 30RQSY 078 Legend 1 30RQS 30RQSY 080 2 30RQS 30RQSY 090 3 30RQS 30RQSY 100 4 30RQS 30RQSY 120 5 30RQS 30RQ...

Page 41: ...3 Operation of two units in master slave mode The control of a master slave assembly is in the entering water and does not require any additional sensors standard configuration It can also be located...

Page 42: ...or air temperature This requires only a 400 V 3 ph 50 Hz power supply source as well as a connection to the unit via a communication bus For the required configuration of the stages consult the 30RB R...

Page 43: ...s moisture in the circuit The presence of bubbles in the sight glass indicates an insufficient charge or non condensables in the system The presence of moisture changes the colour of the indicator pap...

Page 44: ...utral in relation to the materials and coatings to which they are applied This is also the case for the products originally supplied by Carrier SCS NOTES Monitoring during operation Follow the regulat...

Page 45: ...Easy and fast installation plug play 30RQS RQSY 039 160 HP variable speed single pump hydronic mod 116V Single high pressure water pump with variable speed drive VSD water filter electronic water flow...

Page 46: ...l configuration for the desuperheater option is factory assembled 18 1 Physical data 30RQS 30RQSY units with partial heat reclaim using desuperheaters option 49 30RQS RQSY partial heat reclaim mode 03...

Page 47: ...er 4 Air condenser coils 5 Expansion valve EXV 6 Damage limitation option in case of a fire relief valve 7 Electric heater to protect the desuperheater against frost not supplied 8 Desuperheater insul...

Page 48: ...temperature and to find the position of the connection block on the board refer to the 30RB RQTouch Pilot Junior control manual Other parameters directly affecting the effective capacity reclaimed at...

Page 49: ...r the pump every 40 000 hours for applications with water every 15 000 hours for applications with glycol concentrations above 30 To facilitate maintenance operations it is recommended to installshut...

Page 50: ...s with a low pressure jet and a bio degradable cleaner Checktheunitoperatingparametersandcomparethem with previous values Carry out an oil contamination test Replace the oil if necessary Check and if...

Page 51: ...et metal plates 4 2 H M6 screw Stauff clamps 10 Earth screw Compressor 2 8 BPHE Brazed plate heat exchanger 20 6 Air heat exchanger We recommend that finned coils are inspected regularly to check the...

Page 52: ...e pressure Saturat temp Relative pressure 20 297 4 807 28 1687 52 3088 19 312 5 835 29 1734 53 3161 18 328 6 864 30 1781 54 3234 17 345 7 894 31 1830 55 3310 16 361 8 924 32 1880 56 3386 15 379 9 956...

Page 53: ...inals are tight All cables and thermistors have been inspected for crossed wires All plug assemblies are tight Check air handling systems All air handlers are operating All chilled water valves are op...

Page 54: ...an the minimum unit flow rate The flow rate in l s corresponds to the specification of l s Carry out the QUICK TEST function see RB 30RQ Touch Pilot Junior control manual Check and register the config...

Page 55: ......

Page 56: ...7 Supersedes order No 13465 12 2016 Manufacturer Carrier SCS Montluel France Manufacturer reserves the right to change any product specifications without notice Printed in the European Union www ecode...

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