Related Manuals for Danfoss BW10 020-090
Summary of Contents for Danfoss BW10 020-090
- Page 1 BW10 020-090 Water-Sourced Heat Pumps with or without Integrated Hydronic Modules Nominal cooling capacity 24-95 kW Nominal heating capacity 30-116 kW Installation, operation and maintenance instructions VMGFT102...
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Page 2: Table Of Contents
CONTENTS 1 - INTRODUCTION ................................... 4 1.1 - Installation safety considerations ....................................4 1.2 - Equipment and components under pressure ..............................5 1.3 - Maintenance safety considerations ..................................5 1.4 - Repair safety considerations ......................................6 2 - PRELIMINARY CHECKS ................................ 7 2.1 - Check equipment received ......................................7 2.2 - Moving and siting the unit ......................................7 3 - DIMENSIONS, CLEARANCES ............................... - Page 3 9.2 - Available static system pressure (fixed or variable-speed high-pressure pumps, units with hydronic module) ..... 27 9.3 - Available static system pressure (fixed or variable-speed low-pressure pumps, units with hydronic module) ........28 9.4 - Available static pressure for pumps only (units with hydronic modules) ....................29 10 - BW10 UNIT OPERATION WITH SPECIFIC HEATING CONTROL (OPTION 153) ..............31 10.1 - Operating principle .........................................
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Page 4: Introduction
DO NOT COVER ANY PROTECTION DEVICES. 1 - INTRODUCTION This applies to fuse plugs and safety valves (if used) in the Prior to the initial start-up of the BW10 unit, the people refrigerant or heat transfer medium circuits. Check if the involved in the on-site installation, start-up, operation and original protection plugs are still present at the valve outlets. -
Page 5: Equipment And Components Under Pressure
Periodic check of the safety valves: See paragraph 1.3 - Never work on any of the electrical components, until the “Maintenance safety considerations”. general power supply to the unit has been cut using the disconnect switch in the control box. Provide a drain in the drain pipe, close to each safety valve, to avoid an accumulation of condensate or rain water. -
Page 6: Repair Safety Considerations
Avoid spilling liquid refrigerant on skin or splashing it into 1.4 - Repair safety considerations the eyes. Use safety goggles and safety gloves. Wash any spills from the skin with soap and water. If liquid refrigerant enters All installation parts must be maintained by the personnel in the eyes, immediately and abundantly flush the eyes with charge, in order to avoid material deterioration and injuries to water and consult a doctor. -
Page 7: Preliminary Checks
Do not drain water circuits containing industrial brines, 2.2 - Moving and siting the unit without informing the technical service department at the installation site or a competent body first. 2.2.1 - Moving See chapter 1.1 - “Installation safety considerations”. Close the entering and leaving water shutoff valves and purge the unit water circuit, before working on the compo-nents 2.2.2 - Siting the unit... - Page 8 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 378-2 as follows: External visual installation checks:...
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Page 9: Dimensions, Clearances
3 - DIMENSIONS, CLEARANCES 3.1 - BW10 020-045 - standard unit Only for option 70F 1044 1058 3.2 - BW10 020-045 - unit with top connections (option 274) 1044 Legend: All dimensions are in mm. Evaporator Condenser Safety valve Clearances required for maintenance (see note) Control box Water inlet Water outlet... -
Page 10: Bw10 020-045 - Unit With Evaporator Hydronic Module (Option 116)
3.3 - BW10 020-045 - unit with evaporator hydronic module (option 116) Only for option 70F 1044 1058 3.4 - BW10 020-045 - unit with condenser hydronic module (option 270) Legend: All dimensions are in mm. Evaporator Condenser Safety valve Clearances required for maintenance (see note) Control box Water inlet... -
Page 11: Bw10 020-045 - Unit With Hydronic Module And Top Connections (Options 116 + 274 - 270 + 274 - 116 + 270 + 274)
3.6 - BW10 020-045 - unit with hydronic module and top connections (options 116 + 274 - 270 + 274 - 116 + 270 + 274) 1044 3.7 - BW10 020-045 - stackable unit (option 273) NOTE: The water and electrical connections are identical to those of the standard unit. 1058 Legend: All dimensions are in mm. -
Page 12: Bw10 050-090 - Standard Unit
3.8 - BW10 050-090 - standard unit Only for option 70F 1474 1489 3.9 - BW10 050-090 - unit with top connections (option 274) 1474 Legend: All dimensions are in mm. Evaporator Condenser Safety valve Clearances required for maintenance (see note) Control box Water inlet Water outlet... -
Page 13: Bw10 050-090 - Unit With Evaporator Hydronic Module (Option 116)
3.10 - BW10 050-090 - unit with evaporator hydronic module (option 116) Only for option 70F 1474 1488 Legend: All dimensions are in mm. Evaporator Condenser Safety valve Clearances required for maintenance (see note) Control box Water inlet Water outlet Power wiring connection 3.11 - BW10 050-090 - unit with condenser hydronic module (option 270) 3.12 - BW10 050-090 - unit with evaporator/condenser hydronic modules (options 116 + 270) -
Page 14: Bw10 050-090 - Unit With Hydronic Module And Top Connections (Options 116 + 274 - 270 + 274 - 116 + 270 + 274)
3.13 - BW10 050-090 - unit with hydronic module and top connections (options 116 + 274 - 270 + 274 - 116 + 270 + 274) 1474 3.14 - BW10 050-090 - stackable unit (option 273) NOTE: The water and electrical connections are identical to those of the standard unit. 1489 Legend: All dimensions are in mm. -
Page 15: Physical And Electrical Data Bw10
4 - PHYSICAL AND ELECTRICAL DATA BW10 4.1 - Physical data BW10 BW10 Sound levels* Sound power level 10 W, 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 Operating weight Compressors Hermetic scroll 48.3 r/s Quantity Number of capacity steps Minimum capacity... -
Page 16: Physical Data Bw10 Units With Hydronic Module
If another current limitation protection system is used, its time-current and thermal constraint (I²t) trip characteristics must be at least equivalent to those of the recommended Schneider circuit breaker. Contact your nearest Danfoss office. The short-circuit stability current values above are in accordance with the TN system. -
Page 17: Electrical Data, Optional Hydronic Module
4.6 - Electrical data, optional hydronic module The pumps that are factory-installed in these units have motors with efficiency class IE2. The additional electrical data required* is as follows: Motors of fixed-speed hydronic module pumps, BW10 (options 116F and 270F) No.** Description*** BW10 - options 116F and 270F (low-pressure pumps) Nominal efficiency at full load and nominal voltage... -
Page 18: Compressor Usage And Electrical Data Table
°C Entering/leaving water temperature difference Entering/leaving water temperature difference For entering water temperatures below 7.5°C at start-up, contact Danfoss. A frost protection solution must be used. If the leaving water temperature is below 5°C, a frost protection solution must For applications with a condenser entering air temperature below 15°C the use of be used. -
Page 19: Operating Range Bw10
5.2 - Operating range BW10 hydronic module) *** Maximum flow rate for an available pressure of 20 kPa (unit with low-pressure hydronic module) or 50 kPa (unit with high-pressure hydronic module) **** Maximum flow rate for a pressure drop of 100 kPa in the plate heat exchanger (unit without hydronic module) Option 272 Standard... -
Page 20: Maximum Water Loop Volume (Evaporator And Condenser Side)
It may be necessary to add a buffer water tank to the circuit in order to achieve the required volume. The tank must itself be internally baffled in order to ensure proper mixing of the liquid (water or brine). Refer to the examples below. Good Good 5.9 - Maximum water loop volume (evaporator and... -
Page 21: Plate Heat Exchanger Pressure Drop (Includes Internal Piping)
5.12 - Plate heat exchanger pressure drop (includes internal piping) Evaporator - standard unit without hydronic module BW10 020-045 BW10 050-090 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 10 11 12 13 14 15 16 Water flow rate, l/s Water flow rate, l/s BW10 020... -
Page 22: Electrical Connection
Power supply cable section (see table “Recommended wire sections”). installation site. The following is only to be used as a guide-line, and does not make Danfoss in any way liable. After wire sizing NOTES: has been completed, using the certified dimensional drawing,... -
Page 23: Water Connections
The calculation is based on PVC or XLPE insulated cables 6.4.1 - Field control wiring with copper or aluminium core. A maximum ambient Refer to the BW10 Control manual and the certified wiring temperature of 40°C has been taken into account. The given diagram supplied with the unit for the field control wiring of wire length limits the voltage drop to <... -
Page 24: Water Connections
7.3 - Frost protection In case additives or other fluids than those recommended by Danfoss are used, ensure that the fluids are not considered as a gas, The units are designed to be installed under cover at outside and that they belong to class 2, as defined in directive 97/23/ temperatures between +5°C and +40°C. -
Page 25: Nominal Water Flow Control With Fixed-Speed Pump
Typical water piping diagram, BW10 units with hydronic modules Unit water inlet Condenser water loop Components of unit and hydronic module Victaulic screen filter Expansion tank Unit water outlet Safety valve Water pump Air vent Water drain valve 7/8 Entering/leaving pressure sensor 9/10 Entering/leaving temperature probe 12 Flow switch BW10 option 272 (sizes 020-045 only) Unit water inlet... - Page 26 Proceed by successively closing the control valve until you Entering water pressure reading obtain the specific pressure drop that corresponds to the nominal flow rate at the required unit operating point. • If the system has an excessive pressure drop in relation to the available static pressure provided by the pump, the resulting water flow rate will de reduced and the difference between entering and leaving water tempe-rature of the...
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Page 27: Nominal Water Flow Control With Variable-Speed Pump
9 - NOMINAL WATER FLOW CONTROL WITH VARIABLE- SPEED PUMP 9.1 - Pump flow/pressure curve BW10 units with variable-speed hydronic 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 BW10 Control manual). -
Page 28: Available Static System Pressure (Fixed Or Variable-Speed Low-Pressure Pumps, Units With Hydronic Module)
9.3 - Available static system pressure (fixed or variable-speed low-pressure pumps, units with hydronic module) Evaporator BW10 020-045 BW10 050-090 Water flow rate, l/s Water flow rate, l/s BW10 020 BW10 050 BW10 025 to BW10 030 BW10 060 BW10 035 BW10 070 BW10 040 BW10 080... -
Page 29: Available Static Pressure For Pumps Only (Units With Hydronic Modules)
9.4 - Available static pressure for pumps only (units with hydronic modules) 9.4.1 - Fixed-speed pump Low-pressure pumps BW10 (options 116F - 270F) Water flow rate, l/s BW10 020-050 BW10 060-080 BW10 090 9.4.2 - Variable-speed pump High-pressure pumps BW10 (options 116J - 270J) Water flow rate, l/s BW10 020-045... -
Page 31: Bw10 Unit Operation With Specific Heating Control (Option 153)
10 - BW10 UNIT OPERATION WITH SPECIFIC HEATING 11 - START-UP CONTROL (OPTION 153) 11.1 - Preliminary checks 10.1 - Operating principle • Never be tempted to start the unit without reading fully, BW10 units are specially designed to optimise the operation of and understanding, the operating instructions and without heating installations that require hot-water production for a having carried out the following pre-start checks:... -
Page 32: Operation Of Two Units In Master/Slave Mode (Option 58)
For more information contact the Danfoss service team for maintenance instructions. IMPORTANT: To permit master/slave operation both units must be equipped with option 58. -
Page 33: Electronic Expansion Valve (Exv)
It is specific to these units and must not be replaced with Only the replacement of the complete heat exchanger by an one from other Danfoss units. original heat exchanger supplied by the manufacturer is permitted. The replacement must be carried out by a qualified 12.7 - High and low-pressure side safety valves... -
Page 34: Filter Drier In The Refrigerant Circuit
12.14 - Option 272: High-temperature water production with glycol solution ATTENTION: The temperature sensor positioned in the discharge for option 272 is specific to this unit and must not be interchanged with another temperature sensor. For replacement please contact the Danfoss service team. -
Page 35: Options
Options Description Advantages Soft starter Electronic compressor starter Reduced compressor start-up current BW10 020-090 Twinning Unit equipped with an additional field-installed Optimised operation of two units connected BW10 020-090 leaving water temperature sensor, allowing master/ in parallel with operating time equalisation slave operation of two units connected in parallel. -
Page 36: Maintenance
14 - MAINTENANCE 14.2 - General unit maintenance During the unit operating life the service checks and tests must • Keep the unit itself and the space around it clean and free be carried out in accordance with applicable national of obstructions. -
Page 37: Leak Detection
14.5 - Leak detection 14.7 - Recharging liquid refrigerant CAUTION: The units are charged with liquid R-410A Never use oxygen or dry air, as this would cause a risk of fire refrigerant. or explosion. • Carry out a leak detection test on the whole system using the following methods: pressure test using dehydrated With high-pressure R-410A refrigerant the unit operating pressure nitrogen or a mixture of nitrogen and refrigerant used for... -
Page 38: Electrical Maintenance
• Check oil level and quality. If there is a colour change in the 14.9 - Electrical maintenance sight glass, check the oil quality. This may include an acidity test, moisture control, a spectrometric analysis etc When working on the unit comply with all safety precau-tions •... -
Page 39: Maintenance Program
All maintenance operations must be carried out by technicians • Check the phase direction upstream of the unit and in the who have been trained on Danfoss products, observing all Danfoss quality and safety standards. customer’s electrical data table. •... -
Page 40: Start-Up Ckecklist For Bw10 Units (Use For Job File)
16 - START-UP CKECKLIST FOR BW10 UNITS (USE FOR JOB FILE) Preliminary information Job name: ........................................ Location: ......................................... Installing contractor: ....................................Distributor: ......................................Start-up preformed by: .................................... Compressors Model: ..................... Serial No..................Compressors 1. Model No................... 2. Model No................Serial No. - Page 41 Voltage imbalance is less than 2% 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 = .........
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