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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
TOUCH PILOT JUNIOR
Water-Cooled/Condenserless
Liquid Chillers/Water-Sourced Heat Pumps
with or without Integrated Hydraulic Module
61WG/30WG/30WGA 20-190-A
Nominal cooling capacity 25-190 kW
Nominal heating capacity 29-230 kW
Original document
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Table of Contents
Related Manuals for Carrier AquaSnap 61WG Series
Summary of Contents for Carrier AquaSnap 61WG Series
- Page 1 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 TOUCH PILOT JUNIOR Water-Cooled/Condenserless Liquid Chillers/Water-Sourced Heat Pumps...
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Page 2: Table Of Contents
CONTENTS 1 - INTRODUCTION .................................... 5 1.1 - Installation safety considerations .............................. 5 1.2 - Equipment and components under pressure ..........................6 1.3 - Maintenance safety considerations ............................6 1.4 - Repair safety considerations ..............................7 1.5 - Measures, provisions, procedures against emergencies ......................8 2 - PRELIMINARY CHECKS ................................ - Page 3 CONTENTS 6 - ELECTRICAL CONNECTION ..............................42 6.1 - Electrical connections, control box ............................42 6.2 - Power supply ................................... 42 6.3 - Voltage phase imbalance (%)..............................42 6.4 - Recommended wire sections ..............................42 6.5 - 24 V user power reserve ................................. 43 7 - 30WGA UNIT CONNECTIONS ..............................
- Page 4 CONTENTS 18 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA ....................60 18.1 - Compressors ..................................60 18.2 - Lubricant....................................60 18.3 - Evaporators and water-cooled condensers ........................... 60 18.4 - Electronic expansion valve (EXV) ............................60 18.5 - Refrigerant..................................... 60 18.6 - High-pressure switch and high-pressure sensor ........................
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Page 5: Introduction
1 - INTRODUCTION Prior to the initial start-up of the units, the people involved in the Classification and control on-site installation, start-up, operation and maintenance of this In accordance with the Pressure Equipment Directive and unit should be thoroughly familiar with these instructions and the national usage monitoring regulations in the European Union specific project data for the installation site. -
Page 6: Equipment And Components Under Pressure
1 - INTRODUCTION 1.2 - Equipment and components under If the work is interrupted, always ensure that all circuits are pressure still deenergized before resuming the work. ATTENTION: Even if the compressor motors have been These products incorporate equipment or components under switched off, the power circuit remains energized, unless the pressure, unit or circuit disconnect switch is open. -
Page 7: Repair Safety Considerations
1 - INTRODUCTION 9. Contact your local dealer or installer if you have any Ensure that you are using the correct refrigerant type before questions. recharging the unit. The information on operating inspections given in annex C Charging any refrigerant other than the original charge type of standard EN378 can be used if no similar criteria exist in (R-410A) will impair machine operation and can even destroy the national regulations. -
Page 8: Measures, Provisions, Procedures Against Emergencies
1 - INTRODUCTION Any refrigerant transfer and recovery operations must be carried out using a transfer unit. 3/8” SAE connectors on the liquid, suction and discharge lines are available for all units for connection to the transfer station. The units must never be modified to add refrigerant and oil charging, removal and purging devices. All these devices are provided with the units. Please refer to the certified dimensional ... -
Page 9: Preliminary Checks
2 - PRELIMINARY CHECKS 2.1 - Check equipment received 2.2 - Moving and placing the unit Inspect the unit for damage or missing parts. If damage is detected, 2.2.1 - Moving or if shipment is incomplete, immediately file a claim with the shipping company. - Page 10 2 - PRELIMINARY CHECKS Checks before system start-up Before the start-up of the refrigeration system, the complete installation, including the refrigeration system must be verified against the installation drawings, dimensional drawings, system piping and instrumentation diagrams and the wiring diagrams. For these checks national regulations must be followed. If the national regulation does not specify any details, refer to standard EN 378 as follows: External visual installation checks: - Ensure that the machine is charged with refrigerant, Verify on the unit nameplate that the ‘fluid transported’ is R410A and is not ...
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Page 11: Dimensions, Clearances
3 - DIMENSIONS, CLEARANCES 3.1 - 61WG/30WG 020-045 - standard unit Only for option 70F 1044 1058 3.2 - 61WG/30WG 020-045 - unit with top connections (option 274) 1044 Legend All dimensions are given in mm. Evaporator Condenser Relief valve Clearances required for maintenance (see note) Control box Water inlet... -
Page 12: 61Wg/30Wg 020-045 - Unit With Evaporator Hydraulic Module (Option 116)
3 - DIMENSIONS, CLEARANCES 3.3 - 61WG/30WG 020-045 - unit with evaporator hydraulic module (option 116) Only for option 70F 161 237 1044 1058 3.4 - 61WG/30WG 020-045 - unit with condenser hydraulic module (option 270) Legend All dimensions are given in mm. Evaporator Condenser Relief valve... -
Page 13: 61Wg/30Wg 020-045 - Unit With Evaporator/Condenser Hydraulic Modules (Options 116 + 270)
3 - DIMENSIONS, CLEARANCES 3.5 - 61WG/30WG 020-045 - unit with evaporator/condenser hydraulic modules (options 116 + 270) 142 237 3.6 - 61WG/30WG 020-045 - unit with hydraulic module and top connections (options 116 + 274 or 270 + 274 or 116 + 270 + 274) 1044 Legend All dimensions are given in mm. -
Page 14: 61Wg/30Wg 020-045 - Stackable Unit (Option 273)
3 - DIMENSIONS, CLEARANCES 3.7 - 61WG/30WG 020-045 - stackable unit (option 273) NOTE: The water and electrical connections are identical to those of the standard unit. 1058 3.8 - 61WG/30WG 050-090 - standard unit Only for option 70F 1474 1489 Legend All dimensions are given in mm. -
Page 15: 61Wg/30Wg 050-090 - Unit With Top Connections (Option 274)
3 - DIMENSIONS, CLEARANCES 3.9 - 61WG/30WG 050-090 - unit with top connections (option 274) 1474 3.10 - 61WG/30WG 050-090 - unit with evaporator hydraulic module (option 116) Only for option 70F 1474 1488 Legend All dimensions are given in mm. Evaporator Condenser Relief valve... -
Page 16: 61Wg/30Wg 050-090 - Unit With Condenser Hydraulic Module (Option 270)
3 - DIMENSIONS, CLEARANCES 3.11 - 61WG/30WG 050-090 - unit with condenser hydraulic module (option 270) 3.12 - 61WG/30WG 050-090 - unit with evaporator/condenser hydraulic modules (options 116 + 270) 277 282 Legend All dimensions are given in mm. Evaporator Condenser Relief valve Clearances required for maintenance (see note) -
Page 17: 61Wg/30Wg 050-090 - Unit With Hydraulic Module And Top Connections (Options 116 + 274 Or 270 + 274 Or 116 + 270 + 274)
3 - DIMENSIONS, CLEARANCES 3.13 - 61WG/30WG 050-090 - unit with hydraulic module and top connections (options 116 + 274 or 270 + 274 or 116 + 270 + 274) 1474 3.14 - 61WG/30WG 050-090 - stackable unit (option 273) NOTE: The water and electrical connections are identical to those of the standard unit. -
Page 18: 30Wg 110-140 - Standard Unit
3 - DIMENSIONS, CLEARANCES 3.15 - 30WG 110-140 - standard unit 3.16 - 30WG 110-140 - unit with top connections (option 274) Legend All dimensions are given in mm. Evaporator Condenser Relief valve Clearances required for maintenance (see note) Control box Water inlet Power wiring connection Power supply and control connection... -
Page 19: 30Wg 110-140 - Unit With Hydraulic Module (Option 116-270)
3 - DIMENSIONS, CLEARANCES 3.17 - 30WG 110-140 - unit with hydraulic module (option 116-270) 3.18 - 30WG 110-140 - unit with hydraulic module and top connections (option 116-270 and 274) Legend All dimensions are given in mm. Evaporator Condenser Relief valve Clearances required for maintenance (see note) Control box... -
Page 20: 30Wg 150-190 - Standard Unit
3 - DIMENSIONS, CLEARANCES 3.19 - 30WG 150-190 - standard unit 3.20 - 30WG 150-190 - unit with top connections (option 274) Legend All dimensions are given in mm. Evaporator Condenser Relief valve Clearances required for maintenance (see note) Control box Water inlet Power wiring connection Power supply and control connection... -
Page 21: 30Wg 150-190 - Unit With Hydraulic Module (Option 116-270)
3 - DIMENSIONS, CLEARANCES 3.21 - 30WG 150-190 - unit with hydraulic module (option 116-270) 3.22 - 30WG 150-190 - unit with hydraulic module and top connections (option 116-270 and 274) Legend All dimensions are given in mm. Evaporator Condenser Relief valve Clearances required for maintenance (see note) Control box... -
Page 22: 30Wga 020-045 - Standard Unit
3 - DIMENSIONS, CLEARANCES 3.23 - 30WGA 020-045 - standard unit For option 70F only 1044 1058 3.24 - 30WGA 020-045 - unit with evaporator hydraulic module (option 116) For option 70F only 1044 1058 Legend All dimensions are given in mm. Evaporator Condenser Relief valve... -
Page 23: 30Wga 020-045 - Stackable Unit (Option 273)
3 - DIMENSIONS, CLEARANCES 3.25 - 30WGA 020-045 - stackable unit (option 273) NOTE: The water and electrical connections are identical to those of the standard unit. 1058 3.26 - 30WGA 050-090 - standard unit For option 70F only 1474 1488 Legend All dimensions are given in mm. -
Page 24: 30Wga 050-090 - Unit With Evaporator Hydraulic Module (Option 116)
3 - DIMENSIONS, CLEARANCES 3.27 - 30WGA 050-090 - unit with evaporator hydraulic module (option 116) For option 70F only 1474 1488 3.28 - 30WGA 050-090 - stackable unit (option 273) NOTE: The water and electrical connections are identical to those of the standard unit. 1488 Legend All dimensions are given in mm. -
Page 25: 30Wga 110-140 - Standard Unit
3 - DIMENSIONS, CLEARANCES 3.29 - 30WGA 110-140 - Standard unit For option 70F only 1583 1624 HT 3.30 - 30WGA 110-140 - Unit with hydraulic module (option 116) For option 70F only 2339 2381 HT Legend All dimensions are given in mm. Evaporator Condenser Relief valve... -
Page 26: 30Wga 150-190 - Standard Unit
3 - DIMENSIONS, CLEARANCES 3.31 - 30WGA 150-190 - Standard unit Option 70F main switch outside 1583 1625 HT 3.32 - 30WGA 150-190 - Unit with hydraulic module (option 116) Option 70F main switch outside 2339 2381 HT Legend All dimensions are given in mm. Evaporator Condenser Relief valve... -
Page 27: Physical And Electrical Data 61Wg/30Wg/30Wga
4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA 4.1 - Physical data 61WG/30WG 61WG/30WG Operating weight Sound levels Sound power level, standard unit dB(A) 67,0 68,5 69,0 69,3 70,0 70,1 71,5 72,0 72,0 73,0 73,4 Compressors Hermetic scroll 48,3 r/s Quantity Number of capacity steps Minimum capacity Refrigerant... - Page 28 4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA 30WGA Operating weight Sound levels Sound power level, standard unit dB(A) 67,0 68,5 69,0 69,3 70,0 70,1 71,5 72,0 72,0 73,0 73,4 Compressors Hermetic scroll 48,3 r/s Quantity Number of capacity steps Minimum capacity Refrigerant R-410A 160SZ...
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Page 29: Physical Data 61Wg/30Wg/Wga Units With Hydraulic Module
4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA 4.2 - Physical data 61WG/30WG/WGA units with hydraulic module 61WG/30WG/30WGA Operating weight 30WG/61WG (option 116V + 270V) Weight 30WGA (option 116V) Height 1463 1463 1463 1463 1463 1463 1463 1463 1463 1463 1463 Hydraulic module with option 293 or 293A Maximum operating pressure Water filter (max, removed particle diameter) - Page 30 4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA 61WG without hydraulic module Power circuit Nominal voltage V-ph-Hz 400-3-50 Voltage range 360-440 Control circuit supply 24 V, via internal transformer Maximum start-up current draw (Un) Standard unit 195,8 211,4 258,8 220,2 238,1 289,7 Unit with electronic starter option 129,7...
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Page 31: Short-Circuit Stability Current (Tn System (1) ) - Standard Unit (With Main Disconnect Switch)
4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA 30WGA without hydraulic module Power circuit Nominal voltage V-ph-Hz 400-3-50 Voltage range 360-440 Control circuit supply 24 V, via internal transformer Maximum start-up current draw (Un) Standard unit 98,0 142,0 142,0 147,0 158,0 197,0 161,0 162,0 170,0 183,0 226,0 Unit with electronic starter option 53,9 78,1... -
Page 32: Electrical Data, Optional Hydraulic Module
°C < 40 Please refer to the operating conditions given in this manual or in the IV - Maximum air temperature specific conditions in the Carrier selection programs. V - Potentially explosive atmospheres Non-ATEX environment Motors of variable-speed hydraulic module pumps, 61WG/30WG/30WGA (options 116V and 270V) - Page 33 4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA Motors of fixed-speed & variable-speed hydraulic module pumps, 30WG/WGA (options 116T & Y) 61WG/30WG/30WGA - options 116T & Y (low-pressure pumps) Description Nominal efficiency at full load and nominal voltage 84,2 84,2 84,2 84,2 85,9 85,9 Nominal efficiency at 75% rated load and nominal voltage 84,2 84,2 84,2 84,2 85,9 85,9...
- Page 34 4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA Motors of fixed-speed & variable-speed hydraulic module pumps 61WG/30WG (options 116V & R and 270V & R) 61WG/30WG/30WGA - options 116V & R and 30WG- options 270V & R (high-pressure pumps) Description Nominal efficiency at full load and nominal voltage 87,1 87,1 87,1...
- Page 35 4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA Motors of variable-speed hydraulic module pumps, 61WG/30WG (270W) 61WG/30WG - options 270W (Dual high-pressure pumps) Description Nominal efficiency at full load and nominal voltage 87,1 87,1 87,1 88,1 88,1 88,1 Nominal efficiency at 75% rated load and nominal voltage 84,6 84,6 84,6 87,5 87,5 87,5 Nominal efficiency at 50% rated load and nominal voltage 82,5 82,5 82,5 86,5 86,5...
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Page 36: Compressor Usage And Electrical Data Table
4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA 4.6 - Compressor usage and electrical data table 61WG I Max I Max Compressor Reference I Nom (Un) (Un - 10%) SH090 00PSG001482000 10,6 16,1 17,9 53,9 SH105 00PSG001482100 12,9 19,6 21,8 78,1 SH120 00PSG001482200 13,3 21,1... - Page 37 4 - PHYSICAL AND ELECTRICAL DATA 61WG/30WG/30WGA Electrical data notes and operating conditions: • 30WG units have a single power connection point, located immediately upstream - Indoor installation(1) of the main disconnect switch. - Presence of water: class AD2 (possibility of water droplets) - Presence of hard solids, class 4S2 (no significant dust present) •...
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Page 38: Application Data
Entering/leaving water temperature difference K Entering/leaving water temperature difference K (1) For entering water temperatures below 7.5 °C at start-up, contact Carrier. (1) For entering water temperatures below 7.5 °C at start-up, contact manufacturer. (2) If the leaving water temperature is below 5 °C, a frost protection solution must (2) If the leaving water temperature is below 5 °C, a frost protection solution must... -
Page 39: Operating Range 61Wg/30Wg/30Wga
5 - APPLICATION DATA 5.2 - Operating range 61WG/30WG/30WGA higher than the minimum flow given in the table of permissible flow rates and must not vary by more than 10% per minute. If the flow rate changes more rapidly, the system should contain a minimum of 6.5 litres of water per kW instead of the values below. 5.6 - Water flow rates Option 272 Standard 5.6.1 - Standard 61WG/30WG/30WGA... -
Page 40: Minimum Water Volume
5 - APPLICATION DATA 5.6.2 - 30WG with option 6 5.8 - Maximum water loop volume (evaporator and condenser side) Minimum evaporator glycol solution flow rate, l/s Units with hydraulic module incorporate an expansion tank sized 30WG Minimum Minimum for the maximum water loop volume. Low pressure High pressure 5.9 - Expansion tank... -
Page 41: Plate Heat Exchanger Pressure Drop (Includes Internal Piping)
5 - APPLICATION DATA 5.11 - Plate heat exchanger pressure drop (includes internal piping) Evaporator - standard unit without hydraulic module Condenser - standard unit without hydraulic module - Water only - Water only B C D E F B C D E F 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 Water flow rate, l/s... -
Page 42: Electrical Connection
6 - ELECTRICAL CONNECTION 6.1 - Electrical connections, control box 6.3 - 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 ;... -
Page 43: 24 V User Power Reserve
6 - ELECTRICAL CONNECTION 6.4.2 - On-site control wiring Selection of minimum and maximum wire sections for connection to 61WG units Calculation unfavourable case: Conductors in Max. Calculation favourable case: Suspended aerial lines conduits or multi-conductor cables in closed conduit connectable (standardised routing No. -
Page 44: 30Wga Unit Connections
7 - 30WGA UNIT CONNECTIONS 7.1 - Recommendations for the installation of 7.2 - Piping installation and connection liquid chillers with remote condenser On all units release the holding charge pressure before opening The 30WGA units (split units for connection to air-cooled the circuit. -
Page 45: Pipe Sizing With Refrigerant For 30Wga Units
8 - PIPE SIZING WITH REFRIGERANT FOR 30WGA UNITS 8.1 - General considerations and pipe size - The pressure drop in the liquid line (linking the condenser limits outlet to the expansion device) must not result in a change of phase. The estimate of these pressure drops Pipe size limits must include those generated by possible accessories 30WGA... - Page 46 8 - PIPE SIZING WITH REFRIGERANT FOR 30WGA UNITS Table 2 - Liquid line piping 30WGA Equivalent length 0-10 m 10-20 m 20-30 m 30-40 m 40- 50 m 50-60 m 60 m or more 30WGA Equivalent length 0-10 m 10-20 m 20-30 m 1-1/8...
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Page 47: Water Connections
9 - WATER CONNECTIONS For size and position of the heat exchanger water inlet and outlet Recommendations on heat exchange fluids: connections refer to the certified dimensional drawings supplied - No NH ammonium ions in the water, they are very with the unit. The water pipes must not transmit any radial or axial detrimental for copper. -
Page 48: Frost Protection
9 - WATER CONNECTIONS Typical water piping diagram, units with hydraulic modules Unit water inlet Condenser water loop (61WG/30WG) Unit water outlet Unit water inlet Evaporator water loop (61WG/30WG/30WGA) Unit water outlet Components of unit and hydraulic module 1 Victaulic screen filter (option 293 or 293A only) Expansion tank (option 293 or 293A only) Safety valve (option 293 or 293A only) Water pump... -
Page 49: Nominal Water Flow Control With Fixed-Speed Pump
10 - NOMINAL WATER FLOW CONTROL WITH FIXED-SPEED PUMP 10.1 - General Entering water pressure reading The water circulation pumps of the units have been sized to allow the hydraulic modules to cover all possible configurations based on the specific installation conditions, i.e. for various temperature differences between the entering and the leaving water (∆T) at full load, which can vary between 2.5 and 7 K for evaporators and 3 and 18 K for condensers. - Page 50 10 - NOMINAL WATER FLOW CONTROL WITH FIXED-SPEED PUMP To reduce the hydraulic system pressure drops, it is necessary: - to reduce the individual pressure drops as much as possible (bends, level changes, accessories, etc.) - to use a correctly sized piping diameter. - to avoid hydraulic system extensions, wherever possible.
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Page 51: Nominal Water Flow Control With Variable-Speed Pump
11 - NOMINAL WATER FLOW CONTROL WITH VARIABLE-SPEED PUMP 11.1 - Pump flow/pressure curve Units with variable-speed hydraulic module include a water pump that automatically adjusts the flow to maintain a constant pressure or constant temperature difference. No control is required at start-up, but the control mode must be selected at the unit interface (refer to the TouchPilot Junior Control manual). -
Page 52: Available External Static Pressure (Variable Speed / Fixed-Speed High-Pressure Single Pumps, Units With Hydraulic Module)
11 - NOMINAL WATER FLOW CONTROL WITH VARIABLE-SPEED PUMP 11.3 - Available external static pressure (Variable speed / fixed-speed high-pressure single pumps, units with hydraulic module) Data applicable for: - Fresh water 20 °C - In case of use of the glycol, the maximum water flow is reduced - The curves represented below are in normal conditions: leaving water on the back side of the unit (without option 274). Evaporator Condenser BC D... -
Page 53: Available External Static Pressure
11 - NOMINAL WATER FLOW CONTROL WITH VARIABLE-SPEED PUMP 11.4 - Available external static pressure (Variable-speed / Fixed speed Low pressure single pumps, units with hydraulic module. Data applicable for: - Fresh water 20 °C - In case of use of the glycol, the maximum water flow is reduced - The curves represented below are in normal conditions: leaving water on the back side of the unit (without option 274). Evaporator Condenser BC D... -
Page 54: Operation Of 30Wg Units With Specific Heating Control (Option 153)
12 - OPERATION OF 30WG UNITS WITH SPECIFIC HEATING CONTROL (OPTION 153) 12.1 - Operating principle Units have been designed to optimise the operation of heating installations that require hot-water production for a traditional heating system and domestic hot-water production. The TouchPilot Junior control system of the units includes algorithms that permit constant automatic optimisation of: - control of a directional on/off three-way valve based on the heating or domestic hot water requirements - control of the electric heating stages allowing relief of the heating loop... -
Page 55: Operation Of 30Wg Units With The Heating System Manager (Hsm)
13 - OPERATION OF 30WG UNITS WITH THE HEATING SYSTEM MANAGER (HSM) HSM accessory: 00PPG000488000- or 00PPG000488100- or 00PPG000488200- The Heating System Manager (HSM) accessory allows improved integration of the heat pump to maximise energy efficiency performance. With three system levels for nine typical configurations, most heating only applications are covered - from the simplest to the most complex, such as interfacing with a district heating system. Each of these accessory configurations is described in detail in the user manual for these accessories. They offer: - choice of additional control options (on/off volt-free contact or 0-10 V signal for increased performance) - domestic hot water production temperature control and distribution. -
Page 56: 30Wg/61Wg Unit Operation With A Drycooler (Option 154)
14 - 30WG/61WG UNIT OPERATION WITH A DRYCOOLER (OPTION 154) 14.1 - Operating principle 14.4 - Fan stage assignment The units have been designed to optimise the operation of The minimum configuration of the number of fan stages is 2 for systems, using drycoolers as heat rejection system. correct operation. With a variable-speed condenser water pump integrated into the Depending on the drycooler capacity the number of fans can be unit the complexity of traditional systems, using a three-way valve between 2 and 8. -
Page 57: 30Wga Unit Operation With A Remote Air-Cooled Condenser (Option 154)
15 - 30WGA UNIT OPERATION WITH A REMOTE AIR-COOLED CONDENSER (OPTION 154) 15.1 - Operating principle 15.4 - Configuration of the number of fan stages and fan type based on the air-cooled 30WGA units have been specially designed to optimise the condenser model used in the installation operation of split installations, using air-cooled condensers as the chiller ... -
Page 58: Unit Operation With A Free Cooling Drycooler
16 - UNIT OPERATION WITH A FREE COOLING DRYCOOLER 16.1 - Operating principle The option works as a system split in two parts: The units have been designed to optimize the operation of The chiller (with free cooling option) : systems, using drycoolers as free cooling system (method using - Dedicated control algorithms with LEN connector to low outdoor air temperature to chill the water of the air conditioning... -
Page 59: Start-Up
17 - START-UP 17.1 - Preliminary checks 17.3 - Operation of two units in master/slave mode (option 58) - Never be tempted to start the unit without reading fully, and understanding, the operating instructions and without having The control of a master/slave assembly is in the entering water carried out the following pre-start checks: piping (system return). -
Page 60: Major System Components And Operation Data
18 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA 18.1 - Compressors they are applied. This is also the case for the products originally supplied by the manufacturer. The units use hermetic scroll compressors. The only refrigerant NOTES: Monitoring during operation, re-qualification, re- permitted for these compressors is R-410A. -
Page 61: High-Pressure Switch And High-Pressure Sensor
18 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA 18.6 - High-pressure switch and high-pressure 18.10 - Fixed-speed pump sensor This pump is factory-installed as standard to guarantee the nominal Units are equipped with an automatically reset safety pressure flow in the water loop. It is a fixed-speed pump with available system switch on the liquid line. Refer to the controls manual for the alarm pressure. See the pump flow/pressure curves in chapters 10 and 11. -
Page 62: Options And Accessories
19 - OPTIONS AND ACCESSORIES Options Description Advantages Medium-temperature Low temperature chilled water production down to Covers specific applications such as ice storage 30WGA 020-190 brine solution 0°C with ethylene glycol and propylene glycol. and industrial processes Low-temperature Low temperature glycol solution production down to Covers specific applications such as ice storage 30WG 020-190 brine solution -12 °C with ethylene glycol... - Page 63 19 - OPTIONS AND ACCESSORIES Options Description Advantages Dedicated connection and software for 09PE drycooler managment. Permits the use of an energy-efficient plug-and- Dry cooler control 30WG 020-190 For 09PE drycooler need to select the option control play system cabinet manage by the chiller Control box for communication with the condenser via a bus.
- Page 64 19 - OPTIONS AND ACCESSORIES Options Description Advantages Safety hydraulic 30WG 020-190 Screen filter, expansion tank and relief valve Easy and fast installation (plug & play), components, evap. 61WG 020-190 integrated in the evaporator hydraulic module operating safety side 30WGA 020-190 Safety hydraulic Screen filter, expansion tank and relief valve Easy and fast installation (plug &...
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Page 65: Maintenance
20 - MAINTENANCE During the unit operating life the service checks and tests must be carried out in accordance with applicable national regulations. If there are no similar criteria in local regulations, the information on checks during operation in annex C of standard EN 378 can be used. -
Page 66: Refrigerant Undercharge
20 - MAINTENANCE 20.3 - Refrigerant undercharge 20.6 - Evacuation If there is not enough refrigerant in the system, this is indicated To evacuate the system, observe the following recommendations: by gas bubbles in the moisture sight glass. Connect the vacuum pump to the high (HP) and low-pressure (LP) If ... -
Page 67: Characteristics Of R-410A
20 - MAINTENANCE 20.8 - Characteristics of R-410A 20.10 - Tightening torques for the main electrical connections Saturated temperatures (°C) based on the relative pressure (in kPa) Designation Component Value (N·m) Satur. Relative Satur. Relative Satur. Relative Satur. Relative in the unit temp. -
Page 68: Compressors
20 - MAINTENANCE 20.12 - Compressors The compressors do not require any specific maintenance. Nevertheless the preventive system maintenance operations prevent specific compressor problems. The following periodic preventive maintenance checks are strongly recommended: - Check the operating conditions (evaporating temperature, condensing temperature, discharge temperature, heat exchanger temperature difference, superheat, subcooling). -
Page 69: Aquasnap Maintenance Program
21 - AQUASNAP MAINTENANCE PROGRAM All maintenance operations must be carried out by technicians Electrical checks who have been trained on manufacturer products, observing all - Check the tightening of the electric connections, contactors, quality and safety standards. disconnect switch and transformer. - Check the phase direction upstream of the unit and in the 21.1 - Maintenance schedule customer’s electrical data table. -
Page 70: Start-Up Ckecklist For Units (Use For Job File)
22 - START-UP CKECKLIST FOR UNITS (USE FOR JOB FILE) Preliminary information Job name: ........................................ Location: ........................................Installing contractor: ....................................Distributor: ....................................... Start-up preformed by: ....................................Equipment Model: ..................Serial No..................Compressors Model No................ Model No ................Serial No................ Serial No. - Page 71 22 - START-UP CKECKLIST FOR UNITS (USE FOR JOB FILE) WARNING: Do not start unit if voltage imbalance is greater than 2%. Contact local power company for assistance. All incoming power voltage is within rated voltage range Check cooler water loop Water loop volume = ..............(litres) Calculated volume = ..............(litres) Proper loop volume established Proper loop corrosion inhibitor included ........litres of ........Proper loop freeze protection included (if required) ........
- Page 72 CARRIER participates in the ECP programme for LCP/HP Check ongoing validity of certificate: www.eurovent-certification.com Order No.: 10226, 09.2018. Supersedes order No.: 10226, 10.2017. Manufactured by: Carrier SCS, Montluel, France. Manufacturer reserves the right to change any product specifications without notice.