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Touch Pilot Junior
I N S TA L L AT I O N ,
O P E R AT I O N
A N D
M A I N T E N A N C E
I N S T R U C T I O N S
30RQSY
30RQS
For the operation of the control please refer to the
Touch Pilot Junior Control manual for the 30RBS/RQS 039-160 series
Reversible Air-to-Water Heat Pumps
30RQS/30RQSY 039-160 "B"
Nominal cooling capacity 30RQS 38-148 kW - 50 Hz
Nominal heating capacity 30RQS 42-150 kW - 50Hz
Nominal cooling capacity 30RQSY 37-146 kW - 50 Hz
Nominal heating capacity 30RQSY 42-151 kW - 50Hz
Original document
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Table of Contents
Related Manuals for Carrier AquaSnap Touch Pilot Junior Series
Summary of Contents for Carrier AquaSnap Touch Pilot Junior Series
- Page 1 Touch Pilot Junior I N S TA L L AT I O N , O P E R AT I O N A N D M A I N T E N A N C E I N S T R U C T I O N S 30RQSY 30RQS For the operation of the control please refer to the...
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Page 2: Table Of Contents
CONTENTS 1 - INTRODUCTION .................................... 4 1.1 - Specific aspects for 30RQSY units with variable available pressure ..................4 1.2 - Check equipment received ................................ 4 1.3 - Installation safety considerations .............................. 4 1.4 - Equipment and components under pressure ..........................6 1.5 - Maintenance safety considerations ............................6 1.6 - Repair safety considerations ..............................7 2 - MOVING AND SITING THE UNIT ..............................9 2.1 ... - Page 3 CONTENTS 13 - NOMINAL SYSTEM WATER FLOW CONTROL ........................38 13.1 - Units without hydraulic module.............................. 38 13.2 - Units with hydraulic module and fixed-speed pump ......................38 13.3 - Units with hydraulic module and variable-speed pump - pressure differential control ............39 13.4 - Units with hydraulic module and variable-speed pump - temperature difference control ............39 13.5 - Plate heat exchanger pressure drop (including internal piping) - units without hydraulic module ......... 40 13.6 - Pump pressure/flow rate curve - units with hydronic module (fixed-speed or variable-speed pump, 50 Hz) ......40 13.7 - Available external static pressure - units with hydraulic module (fixed-speed or variable-speed pump, 50 Hz) ....41 14 - START-UP ....................................
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Page 4: Introduction
1 - INTRODUCTION 1.2 - Check equipment received Prior to the initial start-up of the 30RQS/30RQSY units, the people involved should be thoroughly familiar with these instructions and ■ Inspect the unit for damage or missing parts. If damage is the specific project data for the installation site. detected, or if shipment is incomplete, immediately file a claim The 30RQS/30RQSY heat pumps are designed to provide a very with the shipping company. high level of safety and reliability making installation, start-up, ■ Confirm that the unit received is the one ordered. Compare the operation and maintenance easier and more secure. They will name plate data with the order. - Page 5 1 - INTRODUCTION Over pressure Safety protection in case of accessories an external fire Refrigerant Side High pressure switch External relief valve Rupture disk Fuse plug Heat transfert fluid side External relief valve (1) Classified for protection in normal service situations. (2) Classified for protection in abnormal service situations. These accessories are sized for fires with a thermal flow of 10kW/m². No combustible matter should be placed within 6.5m of the unit. (3) The instantaneous over-pressure limited to 10% of the operating pressure does not apply to this abnormal service situation. The control pressure can be higher Maxi 10% than the service pressure. In this case either the design temperature or the high-pressure switch ensures that the service pressure is not exceeded in normal ...
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Page 6: Equipment And Components Under Pressure
These products incorporate equipment or components under If any maintenance operations are carried out on the unit, pressure, manufactured by Carrier or other manufacturers. We lock the power supply circuit in the open position and secure recommend that you consult your appropriate national trade ... -
Page 7: Repair Safety Considerations
- Test protocols have serious or even fatal consequences and damage the - Recommissioning of the equipment. installation. Consult Carrier Service for this type of test. Carrier mentions here Never exceed the specified maximum operating pressures. only the principle of a test without removing the pressure switch: Verify the allowable maximum high- and low-side test - Verify and and record the set-points of pressure switches ... - Page 8 1 - INTRODUCTION Do not attempt to remove refrigerant circuit components or fittings, while the machine is under pressure or while it is running. Be sure pressure is at 0 kPa and that the unit has been shut-down and de-energised before removing components or opening a circuit.
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Page 9: Moving And Siting The Unit
2 - MOVING AND SITING THE UNIT 2.1 - Moving 2.3 - Checks before system start-up See chapter 1.3 - “Installation safety considerations”. Before the start-up of the refrigeration system, the complete installation, including the refrigeration system must be verified 2.2 - Siting the unit against the installation drawings, dimensional drawings, system ... -
Page 10: Installation Specifics For 30Rqsy Units
3 - INSTALLATION SPECIFICS FOR 30RQSY UNITS 3.1 - General Each fan is controlled by a variable-speed controller. Therefore each circuit operates independently and must have a separate duct system to avoid any air recycling between the air heat exchangers of the different refrigerant circuits. On the 30RQSY units each fan includes a factory-mounted connection frame interface for the connection to the duct network ... -
Page 11: Electrical Protection Of The Fan Motors
3.6 - Installation of the accessory condensate collection pan Ref.: 30RY 900 032 EE – (30RQSY 039 to 078) Unit with grille protection option It may be necessary to remove water. Carrier can supply an NOTE: The discharge lines must be ducted separately. accessory condensate collection pan for installation under the Fan motor access hatches (provide a 700 x 700 mm hatch) for each single and dual duct unit. The connection of this pan to the condensate collection ... -
Page 12: Dimensions, Clearances
4 - DIMENSIONS, CLEARANCES 4.1 - 30RQS 039 and 045-078, units with and without hydraulic module For units with fans with variable available pressure (30RQSY) please refer to the pages that follow. Legend NOTES: All dimensions are given in mm. A Non-certified drawings. Control box Refer to the certified dimensional drawings supplied with the unit or available on request, when designing an Water inlet. -
Page 13: 30Rqs 080-160, Units With And Without Hydraulic Module
4 - DIMENSIONS, CLEARANCES 4.2 - 30RQS 080-160, units with and without hydraulic module For units with fans with variable available pressure (30RQSY) please refer to the pages that follow. Unit with grille protection option Legend NOTES: All dimensions are given in mm. A Non-certified drawings. Control box Refer to the certified dimensional drawings supplied with the unit or available on request, when designing an Water inlet. -
Page 14: 30Rqsy 039-045, Units With And Without Hydraulic Module, Without Filter Frame
4 - DIMENSIONS, CLEARANCES 4.3 - 30RQSY 039-045, units with and without hydraulic module, without filter frame Legend All dimensions are given in mm. Control box Water inlet. Water outlet Required clearances for air flow Recommended 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, when designing an installation. -
Page 15: 30Rqsy 039-045, Option 23B, Units With And Without Hydraulic Module, With Filter Frame
4 - DIMENSIONS, CLEARANCES 4.4 - 30RQSY 039-045, option 23B, units with and without hydraulic module, with filter frame Legend All dimensions are given in mm. Control box Water inlet. Water outlet Required clearances for air flow Recommended 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, when designing an installation. -
Page 16: 30Rqsy 050-078, Units With And Without Hydraulic Module, Without Filter Frame
4 - DIMENSIONS, CLEARANCES 4.5 - 30RQSY 050-078, units with and without hydraulic module, without filter frame Legend All dimensions are given in mm. Control box Water inlet. Water outlet Required clearances for air flow Recommended 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, when designing an installation. -
Page 17: 30Rqsy 050-078 Option 23B, Units With And Without Hydraulic Module, With Filter Frame
4 - DIMENSIONS, CLEARANCES 4.6 - 30RQSY 050-078 option 23B, units with and without hydraulic module, with filter frame Legend All dimensions are given in mm. Control box Water inlet. Water outlet Required clearances for air flow Recommended 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, when designing an installation. -
Page 18: 30Rqsy 080-120 Units With And Without Hydraulic Module
4 - DIMENSIONS, CLEARANCES 4.7 - 30RQSY 080-120 units with and without hydraulic module Legend All dimensions are given in mm. Control box Water inlet. Water outlet Required clearances for air flow Recommended 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, when designing an installation. -
Page 19: 30Rqsy 140-160 Units With And Without Hydraulic Module
4 - DIMENSIONS, CLEARANCES 4.8 - 30RQSY 140-160 units with and without hydraulic module Unit with grille protection option Legend All dimensions are given in mm. Control box Water inlet. Water outlet Required clearances for air flow Recommended 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, when designing an installation. -
Page 20: 30Rqs/Rqsy 039-078 Units With Buffer Tank Module
4 - DIMENSIONS, CLEARANCES 4.9 - 30RQS/RQSY 039-078 units with buffer tank module NOTES: Legend All dimensions are given in mm. A Non-certified drawings. Control box Refer to the certified dimensional drawings supplied with the unit or available on request, when designing an Water inlet. installation. For the location of fixing points, weight Water outlet distribution and coordinates of the centre of gravity refer Required clearances for air flow... -
Page 21: 30Rqs/Rqsy 080-160 Units With Buffer Tank Module
4 - DIMENSIONS, CLEARANCES 4.10 - 30RQS/RQSY 080-160 units with buffer tank module NNOTES: Legend All dimensions are given in mm. A Non-certified drawings. Control box Refer to the certified dimensional drawings supplied with the unit or available on request, when designing an Water inlet. installation. For the location of fixing points, weight Water outlet distribution and coordinates of the centre of gravity refer Required clearances for air flow... -
Page 22: 30Qbs/Rqsy 039-080 Units With Desuperheater
4 - DIMENSIONS, CLEARANCES 4.11 - 30QBS/RQSY 039-080 units with desuperheater Position of the desuperheater inlets and outlets 4.12 - 30RQS/RQSY 090-120 units with desuperheater Position of the desuperheater inlets and outlets 4.13 - 30RQS/RQSY 140-160 units with desuperheater Position of the desuperheater inlets and outlets Unit with grille protection option Unit water inlet and outlet Water inlet and outlet, unit with option 49... -
Page 23: Physical Data, 30Rqs Units
5 - PHYSICAL DATA, 30RQS UNITS For units with fans with variable available pressure (30RQSY 039-160) please refer to chapter 7. 30RQS Sound levels Standard unit Sound power level dB(A) Sound pressure level at 10 m dB(A) Standard unit + option 15LS Sound power level dB(A) Sound pressure level at 10 m dB(A) Dimensions Lenght 1090 1090 1090 1090 1090 1090 2273 2273 2273 2273 2273 2273 Depth 2109 2109 2109 2109 2109 2109 2136 2136 2136 2136 2136 2136 Height without buffer tank module 1330 1330 1330 1330 1330 1330 1330 1330 1330 1330 1330 1330... -
Page 24: Electrical Data, 30Rqs Units
6 - ELECTRICAL DATA, 30RQS UNITS For units with fans with variable available pressure (30RQSY 039-160) please refer to chapter 8. 30RQS - standard unit (without hydraulic module) Power circuit Nominal power supply V-ph-Hz 400-3-50 Voltage range 360-440 Control circuit supply 24 V, via internal transformer Maximum start-up current (Un) Standard unit Unit with electronic starter option Unit power factor at maximum capacity 0.83 0.81 0.81 0.83 0.81 0.78... -
Page 25: Physical Data, 30Rqsy Units
7 - PHYSICAL DATA, 30RQSY UNITS 30RQSY Sound levels Standard unit - for 160 Pa external static pressure Sound power level at discharge dB(A) Sound pressure level radiated dB(A) Sound pressure level at 10 m dB(A) If two values are shown the first one is for standard units and the second one for units Dimensions with option 23B 2142/ 2142/ 2142/ 2142/ 2142/ 2142/ Length 2273 2273 2273 2273 2273 2273 2307 2307 2307... -
Page 26: Electrical Data, 30Rqsy Units
8 - ELECTRICAL DATA, 30RQSY UNITS 30RQSY - standard unit (without hydraulic module) Power circuit Nominal power supply V-ph-Hz 400-3-50 Voltage range 360-440 Control circuit supply 24 V, via internal transformer Maximum start-up current (Un) Standard unit Unit with electronic starter option Unit power factor at maximum capacity 0.83 0.81 0.81 0.83 0.81 0.83 0.83... -
Page 27: Electrical Data, 30Rqs And 30Rqsy Units
2850 2850 2850 2850 2850 2850 2850 2850 2890 2890 2870 2870 Disassembly using standard tools. Disposal and recycling using an Product disassembly, recycling or disposal at end of life appropriate company. 12 Operating conditions for which the motor is specifically designed I - Altitudes above sea level < 1000†† II - Ambient air temperature °C < 55 Please refer to the operating conditions given in this manual or in the IV - Maximum air temperature °C specific conditions in the Carrier selection programs. V - Potentially explosive atmospheres Non-ATEX environment (1) Required by regulation 640/2009 with regard to the application of directive 2009/125/EC on the eco-design requirements for electric motors (2) Item number imposed by regulation 640/2009, annex I2b. (3) Description given by regulation 640/2009, annex I2b. (4) To obtain the maximum power input for a unit with hydraulic module add the maximum unit power input from the electrical data table to the pump power input. † To obtain the maximum unit operating current draw for a unit with hydraulic module add the maximum unit current draw from the electrical data table to the pump current draw. †† Above 1000 m, a degradation of 3% for each 500 m should be taken into consideration. -
Page 28: Compressor Usage And Electrical Data For Standard Units
12 Operating conditions for which the motor is specifically designed I - Altitudes above sea level < 1000†† II - Ambient air temperature °C < 55 Please refer to the operating conditions given in this manual or in the IV - Maximum air temperature °C specific conditions in the Carrier selection programs. V - Potentially explosive atmospheres Non-ATEX environment (1) Required by regulation 640/2009 with regard to the application of directive 2009/125/EC on the eco-design requirements for electric motors (2) Item number imposed by regulation 640/2009, annex I2b. (3) Description given by regulation 640/2009, annex I2b. (4) To obtain the maximum power input for a unit with hydraulic module add the maximum unit power input from the electrical data table to the pump power input. † To obtain the maximum unit operating current draw for a unit with hydraulic module add the maximum unit current draw from the electrical data table to the pump current draw. †† Above 1000 m, a degradation of 3% for each 500 m should be taken into consideration. 9.3 - Compressor usage and electrical data for standard units... - Page 29 Caution: If particular aspects of an actual installation do not conform to the the requirements of the installation directives. Conformance with EN 60204-1 is conditions described above, or if there are other conditions which should the best means of ensuring compliance with the Machines Directive § 1.5.1. be considered, always contact your local Carrier representative. • Annex B of EN 60204-1 describes the electrical characteristics used for the (1) The absence of main power disconnect switch on standard machines is an exception operation of the machines.
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Page 30: Application Data
°C protection option to -20°C (option 42B) Kit with buffer tank (option 307) and frost °C protection option to -20°C (option 42B) Note: Do not exceed the maximum operating temperature. (1) Defines the frost-free temperature of the hydraulic components for use without Note: Do not exceed the maximum operating temperature. glycol. (1) For entering water temperatures below 7.5°C at start-up, contact Carrier. (2) For low-temperature applications, where the leaving water temperature is below 30RQS/RQSY - heating mode 5°C, a frost protection solution must be used. (3) For transport and storage of the 30RQS/30RQSY units the minimum and maximum allowable temperatures are -20°C and +48°C. It is recommended that these temperatures are used for transport by container. (4) Defines the frost-free temperature of the hydraulic components for use without glycol. 30RQS/RQSY - cooling mode Entering air temperature, °C... -
Page 31: Minimum Water Flow Rate
10 - APPLICATION DATA 10.4 - Minimum water flow rate 10.6.2 - Maximum water loop volume Units with hydraulic module incorporate an expansion tank that If the installation flow rate is below the minimum flow rate, there limits the water loop volume. The table below gives the maximum is a risk of excessive fouling. loop volume for pure water or ethylene glycol with various 10.5 - Maximum water heat exchanger water concentrations. flow rate 039-078 without 080-160 without 30RQS/RQSY... -
Page 32: Electrical Connection
The power supply must conform to the specification on the heat the characteristics and regulations applicable to each installation pump nameplate. The supply voltage must be within the range site. The following is only to be used as a guide-line, and does not specified in the electrical data table. For connec-tions refer to the make Carrier in any way liable. After wire sizing has been wiring diagrams and the certified dimen-sional drawings. completed, using the certified dimen-sional drawing, the installer WARNING: Operation of the heat pump with an improper must ensure easy connection and define any modifications supply voltage or excessive phase imbalance constitutes necessary on site. -
Page 33: Field Control Wiring
11 - ELECTRICAL CONNECTION 11.5 - Field control wiring IMPORTANT: Field connection of interface circuits may lead to safety risks: any control box modification must maintain equipment conformity with local regulations. Precautions must be taken to prevent accidental electrical contact between circuits supplied by different sources: •... -
Page 34: Water Connections
It must be located in a position that is easily accessible for removal and cleaning. Carrier recommendations on heat exchange fluids: The mesh size of the filter must be 1.2 mm. • No NH ... -
Page 35: Protection Against Cavitation (Option 116)
If the heat transfer fluid does not comply with the Carrier regu- lations, the nitrogen charge must be added immediately. 12.4 - Protection against cavitation (option 116) To ensure the durability of the pumps in the integrated hydraulic ... - Page 36 12 - WATER CONNECTIONS Typical hydraulic circuit diagram with hydraulic module Option Option Option Typical hydraulic circuit diagram without hydraulic module Legend Components of the unit and hydraulic module Installation components 1 Screen filter (Mesh1.2 mm) 16 Thermowell 2 Expansion tank (option) 17 Air purge 3 Discharge valve 18 ...
- Page 37 12 - WATER CONNECTIONS Hydraulic module - sizes 039-078 Hydraulic module - sizes 080-160 Dual pump shown Dual pump shown Hydraulic module - sizes 039-080 Hydraulic module - sizes 090-160 Dual pump and buffer tank shown Dual pump and buffer tank shown...
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Page 38: Nominal System Water Flow Control
13 - NOMINAL SYSTEM WATER FLOW CONTROL 13.1.3 - Procedure for controlling the water flow Refer to the chapter ‘‘Water connections’’ for all references points mentioned in this chapter. Once the circuit is cleaned, read the pressures on the pressure The water circulation pumps of unit range have been designed to gauges (water inlet and outlet pressure) determine the pressure allow the hydraulic modules to operate at each possible conditions, drop within the unit (plate heat exchanger + internal pipe work). i.e. with chilled water temperature differences at full load from 3 Compare the value obtained with the design value predicted by to 10 K. the selection software. This temperature difference required between the water inlet and If the pressure drop reading is above the specified value, this outlet ... -
Page 39: Units With Hydraulic Module And Variable-Speed Pump - Pressure Differential Control
The temperature probes at the heat exchanger inlet and outlet flow rate or maximum frequency and this results in a lower (items 8 and 9 in the typical hydraulic circuit diagram) are used pressure differential than the set point. as means of control. • If the set point value is too low (achieved for a lower flow The system reads the measured temperature values, calculates rate that the minimum value or a lower frequency than the the corresponding temperature difference, compares it with the minimum value), the system settles at the minimum flow user-selected set point value and modulates the pump speed as rate or minimum frequency and this results in a higher necessary: pressure differential than the set point. • If a higher delta T value than the set point is measured, the See with Carrier Service to implement the procedures described flow rate is increased. below. • If a lower delta T value than the set point is measured, the flow rate is decreased. -
Page 40: Plate Heat Exchanger Pressure Drop (Including Internal Piping) - Units Without Hydraulic Module
Modify the control parameters: • If the set point value is too low (achieved for a higher flow - Set water flow control to ‘temperature differential’ rate that the maximum value or a higher frequency than the - Set the value of the required differential temperature. maximum value), the system settles at the maximum flow By default, the unit is factory configured at the minimum speed rate or maximum frequency and this results in a higher delta (frequency: 50 Hz). T value than the set point. See with Carrier Service to implement the procedures described below. 13.5 - Plate heat exchanger pressure drop (including internal piping) - units without hydraulic module 30RQS/RQSY 039-078 30RQS/RQSY 080-160 Water flow rate, l/s Water flow rate, l/s Legend Legend 30RQS/30RQSY 039 30RQS/30RQSY 060 30RQS/30RQSY 080 ... -
Page 41: Available External Static Pressure - Units With Hydraulic Module (Fixed-Speed Or Variable-Speed Pump, 50 Hz)
13 - NOMINAL SYSTEM WATER FLOW CONTROL 13.7 - Available external static pressure - units with hydraulic module (fixed-speed or variable- speed pump, 50 Hz) Data applicable for: - Fresh water 20 °C - In case of use of the glycol, the maximum water flow is reduced. Warning : With the buffer tank module option, the curves below do not take the pressure drops for this component into account. -
Page 42: Start-Up
14 - START-UP 14.1 - Preliminary checks Standard configuration: return water control Never be tempted to start the heat pump without reading fully, and understanding, the operating instructions and without having carried out the following pre-start checks: • Check the chilled water circulation pumps, air handling units and all other equipment connected to the evaporator. • Refer to the manufacturer’s instructions. • For units without hydraulic module, the water pump overheat protection device must be connected in series with the pump contactor power supply. • Refer to the wiring diagram supplied with the unit. • Ensure that there are no refrigerant leaks. • Confirm that all pipe securing bands are tight. • Confirm that the electrical connections are secure. 14.2 - Actual start-up IMPORTANT: •... -
Page 43: Supplementary Electric Resistance Heaters
14 - START-UP 14.4 - Supplementary electric resistance Typical accessory installation diagram heaters To permit staging of the capacity reduction of the heat pump at low ambient temperatures, as shown in the diagram below, it is possible to install supplementary electric heaters in the leaving water line. Their capacity can compensate for the capacity drop of the heat pump. These heaters can be controlled via an electronic card mounted on a board (option). Four outputs are 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 con-dition (safety device). In the diagram below “example of additional electric heaters” the capacity of the four heaters is the same as the capacity of the heat pump at 7°C outdoor 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/RQ Touch Pilot Junior Control IOM. Legend 1 Electric heater power supply 400 V-3 ph-50 Hz 2 Accessory control board for four additional electric heaters 3 Internal communication bus 4 ... -
Page 44: Major System Components
15 - MAJOR SYSTEM COMPONENTS 15.1 - Compressors 15.4 - Fans 30RQS/RQSY units use hermetic scroll compressors. Each The fans are axial Flying Bird fans equipped with rotating shroud compressor is equipped with a crankcase oil heater, as standard. and made of composite recyclable material. The motors are three- phase, with permanently lubricated bearings and insulation class Each compressor sub-function is equipped with: F. See table below. • Anti-vibration mountings between the unit chassis and the chassis of the compressor sub-function. 15.5 - Electronic expansion valve (EXV) • A single pressure safety switch at the discharge. The EXV is equipped with a stepper motor that is controlled via 15.2 - Lubricant the SIOB board. The compressors installed in these units have a specific oil charge, ... -
Page 45: Water Evaporator/Condenser
For the alarm containers during the water piping connection procedure must be acknowledgements refer to the 30RB/RQ Touch Pilot Junior control chemically neutral in relation to the materials and coatings to which manual). they are applied. This is also the case for the products originally supplied by Carrier SCS. 15.11 - Storage tank NOTES - Monitoring during operation: 30RQS/RQSY units are equipped with mechanically welded • Follow the regulations on monitoring pressurised storage tanks that permit storing the excess charge when the unit equipment. -
Page 46: Options
16 - OPTIONS Options Description Advantages Improved corrosion resistance, Corrosion protection, Fins made of pre-treated aluminium 30RQS/RQSY recommended for moderate marine and traditional coils (polyurethane and epoxy) 039-160 urban environments Low temperature chilled water production Medium-temperature brine Covers specific applications such as ice 30RQS/RQSY down to 0°C with ethylene glycol and solution storage and industrial processes 039-160 propylene glycol. Low temperature chilled water production Low-temperature brine Covers specific applications such as ice 30RQS/RQSY down to -15°C with ethylene glycol and -12°C solution storage and industrial processes 039-160 with propylene glycol. Acoustic compressor enclosure and low-speed Noise emission reduction at reduces fan Very low noise level 15LS 30RQS 039-160 fans speed Very low noise level 15LS Acoustic compressor enclosure Compressor noise emission reduction... - Page 47 16 - OPTIONS Options Description Advantages Dual high-pressure water pump with variable speed drive (VSD), water filter, electronic flow Easy and fast installation (plug & play), switch, pressure transducers. Multiple HP variable-speed dual- significant pumping energy cost savings 30RQS/RQSY 116W possibilities of water flow control. For more pump hydraulic mod. (more than two-thirds), tighter water flow 039-160 details, refer to the dedicated chapter control, improved sytem reliability (expansion tank not included Option with built-in safety hydraulic components available) Two-directional communication board Connects the unit by communication bus to 30RQS/RQSY J-Bus gateway 148B complying with JBus protocol a building management system 039-160 Two-directional communication board Connects the unit by communication bus to 30RQS/RQSY Lon gateway 148D complying with Lon Talk protocol a building management system 039-160 Easy and high-speed connection by Two-directional high-speed communication ethernet line to a building management ...
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Page 48: Specific Details For Units With A Fan With Available Static Pressure (30Rqsy)
17 - SPECIFIC DETAILS FOR UNITS WITH A FAN WITH AVAILABLE STATIC PRESSURE (30RQSY) Selection based on the pressure drop The cooling and heating capacities are given for an available pressure of 160 Pa and for a unit without filter. To calculate the performances at other pressure drops please use the correction factors below. ■ Cooling mode 30RQSY 039-050/30RQSY 080-120 Duct pressure drop Fan speed, r/s Power input coefficient Cooling capacity coefficient 12.00 0.943 1.019... -
Page 49: Partial Heat Reclaim Using Desuper-Heaters (Option 49)
18 - PARTIAL HEAT RECLAIM USING DESUPER-HEATERS (OPTION 49) This option permits the production of free hot water using heat reclaim by desuperheating the compressor discharge gases. The option is available for the whole 30RQS/30RQSY range. A plate heat exchanger is installed in series with the air condenser coils on the compressor discharge line of each circuit. The control 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 Operating weight 30RQS units with RTPF coils Standard unit without hydraulic module 1073 1091 Standard unit with hydraulic module option Single high-pressure pump... -
Page 50: Installation And Operation Of The Heat Reclaim With Desuperheater Option
18 - PARTIAL HEAT RECLAIM USING DESUPER-HEATERS (OPTION 49) 18.2 - Installation and operation of the heat During the unit installation the heat reclaim plate heat exchangers reclaim with desuperheater option must be insulated and frost protected, if required. Please refer to the typical installation diagram below for the main The 30RQS/RQBSY units with the desuperheater option are components and functions of the 30RQS/RQSY units with the supplied with one heat exchanger per refrigerant circuit. -
Page 51: Installation
18 - PARTIAL HEAT RECLAIM USING DESUPER-HEATERS (OPTION 49) 18.3 - Installation 18.5 - Operating limits The water connections on the desuperheater water inlets and Desuperheater Minimum Maximum outlets must not cause any mechanical local constraint at the heat exchangers. If necessary, install flexible connection sleeves. Entering water temperature at start-up °C Install water flow control and balancing valves at the heat Leaving water temperature during operation °C exchanger outlet. -
Page 52: Brine Option (Option 5B & Option 6B)
The presence of glycol reduces the life of the pump fittings. It is recommended that the commissioning of a brine system is It is recommended to change the fittings or the pump: done by Carrier. • every 40 000 hours for applications with water, For information: The protection values given by our supplier, based • every 15 000 hours for applications with glycol on the antifreeze solutions used in the Carrier Montluel laboratory, ... -
Page 53: Standard Maintenance
NOTE: Any deviation or non-observation of these maintenance criteria will render the guarantee conditions for the HVAC unit Mechanical checks nul and void, and the manufacturer, Carrier SCS, will no longer be held responsible. • Check the tightening of the fan tower, fan, compressor and control box fixing bolts. -
Page 54: Tightening Torques For The Main Electrical Connections
20 - STANDARD MAINTENANCE 20.4 - Tightening torques for the main electrical 20.6 - Air heat exchanger connections We recommend, that finned coils are inspected regularly to check the degree of fouling. This depends on the environment where the Designation Value Component/screw type unit is installed, and will be worse in urban and industrial in the unit (N·m) installations and near trees that shed their leaves. Soldered screw (PE) customer connection For coil cleaning, two maintenance levels are used, based on the ... -
Page 55: Characteristics Of R-410A
20 - STANDARD MAINTENANCE 20.9 - Characteristics of R-410A Saturated temperatures (°C) based on the relative pressure (in kPa) Relative Relative Relative Relative Saturat. temp. Saturat. temp. Saturat. temp. Saturat. temp. pressure pressure pressure pressure 1687 3088 1734 3161 1781 3234 1830 3310... -
Page 56: Start-Up Checklist For 30Rqs/30Rqsy Heat Pumps (Use For Job File)
21 - START-UP CHECKLIST FOR 30RQS/30RQSY HEAT PUMPS (USE FOR JOB FILE) Preliminary information Job name: ........................................ Location: ........................................Installing contractor: ....................................Distributor: ....................................... Start-up performed by:.............. Date: ................... Equipment Model 30RQS/RQSY: ..............S/N ....................Compressors Circuit A Circuit B 1. Model No. ................ 1. M odel No................. ... - Page 57 21 - START-UP CHECKLIST FOR 30RQS/30RQSY HEAT PUMPS (USE FOR JOB FILE) 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 ...... Water piping includes electric tape heater up to the water heat exchanger Return water piping is equipped with a screen filter with a mesh size of 1.2 mm Check pressure drop across water heat exchanger (no hydraulic module) or the external static pressure (with hydraulic module) Entering water heat exchanger = ...
- Page 58 CARRIER participates in the ECP programme for LCP/HP Check ongoing validity of certificate: www.eurovent-certification.com Order No.: 13465, 09.2018. Supersedes order No.: 13465, 01.2017. Manufactured by: Carrier SCS, Montluel, France. Manufacturer reserves the right to change any product specifications without notice.