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Table of Contents
Related Manuals for FläktGroup Row-DENCO DRX 051
Summary of Contents for FläktGroup Row-DENCO DRX 051
- Page 1 ® Row-DENCO OPERATION MANUAL...
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Page 2: Table Of Contents
Table of Contents Row-DENCO Unit Identification Plate .............. 4 Unit Type Code ................6 Indoor type code ..................6 Outdoor type code ................... 7 Overview of Units and Packaged Content ........ 8 Documents enclosed with the unit ............8 General characteristics ................8 Versions .................... - Page 3 Row-DENCO Table of Contens Electrical Connection ............... 49 Requirements ..................49 DRX Connection Configuration .............. 54 DRC connection configuration ..............55 Electrical specifications ................56 10 Commissioning and Testing ............ 57 10.1 Evacuation ....................57 10.2 Charging ....................58 10.3 Preparing for first start up ............... 58 10.4 Condensate drain ...................
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Page 4: Unit Identification Plate
Unit Identification Plate Row-DENCO Unit Identification Plate The unit identification plate is secured on the unit and is explained as follows. Enter the data from the unit identification plate in the operation manual. This record establishes the relationship between the unit and the operation manual. If this condition is met, the operation manual can then be used to enter test and inspection data for your unit. - Page 5 Row-DENCO Unit Identification Plate The DROU condensing units can be identified by the: Packaging label Showing the data identifying the product. Rating plate Showing the unit technical and performance data. If this is lost, ask After Sales Service for a replacement. NOTE! Tampering with or the removal or absence of rating plates or other means enabling the unit to be identified causes problems during installation and maintenance.
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Page 6: Unit Type Code
Unit Type Code Row-DENCO Unit Type Code Indoor type code Row-DENCO Row-DENCO Chilled water Split system Width of unit x 100 mm only DRC version only DRC version only DRC version only DRC version only DRX version only DRX version only DRX version Series 230 V/1Ph/50 Hz... -
Page 7: Outdoor Type Code
Row-DENCO Unit Type Code Outdoor type code Row-DENCO Row-DENCO Outdoor units Condensing Unit R-410A Series 400 V/3Ph/+N/50 Hz - only Unit size 071-121 230 V/1Ph/+N/50 Hz - only Unit size 051 Standard version Winter-Kit down to -35 °C ambient NOTE! For detailed planning please only use the order-related documentation. -
Page 8: Overview Of Units And Packaged Content
Overview of Units and Packaged Content Row-DENCO Overview of Units and Packaged Content Documents enclosed with the unit Each unit is delivered complete with the following documents: – Row-DENCO installation, user and maintenance manual – Wwiring diagram – list of spare parts –... - Page 9 Row-DENCO Overview of Units and Packaged Content Filters Regenerable polyester fibre filtering media (G2 efficiency) treated with synthetic resins, supported by a frame with protective metal mesh. The filtering media is flame retar- dant. Air-Sources Heat Exchanger Finned coil with large frontal surface area, made from mechanically expanded tubes and aluminium fins with hydrophilic treatment and high heat transfer area.
- Page 10 Overview of Units and Packaged Content Row-DENCO Heat exchange coils Made using copper tubes mechanically expanded onto aluminium fins with a high heat exchange area. Condenser fan External impeller axial-flow fans, statically and dynamically balanced at low speed. Six- or four-pole electric motor with built-in thermal cut-out. Housed in aerodynamic tubes with accident prevention grill.
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Page 11: Versions
Row-DENCO Overview of Units and Packaged Content Versions 3.3.1 Air-Cooled direct expansions unit – DRX The DRX series units, with single direct expansion cooling circuit, use air for cooling in the condensing stage, and are therefore combined with the DROU air-cooled outdoor condensing units. -
Page 12: Type Of System
Overview of Units and Packaged Content Row-DENCO Type of system 3.4.1 Rack cooling with cold/hot aisle configuration with front outlet hot aisle cold aisle hot aisle cold aisle hot aisle Fig. 3-5: Row-DENCO version with front outlet units are installed in the rows of RACKS so as to form cold and hot aisles. The electronic equipment in the RACKS use their own fans to independently take in the cooling air delivered into the cold aisle. - Page 13 Row-DENCO Overview of Units and Packaged Content 3.4.2 Rack cooling with cold/hot aisle configuration with side outlet hot aisle cold aisle hot aisle cold aisle hot aisle Fig. 3-6: Row-DENCO version with side outlet The units are installed in the rows of RACKS so as to form cold and hot aisles. The electronic equipment in the RACKS use their own fans to independently take in the cooling air delivered into the cold aisle.
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Page 14: Safety And User Instructions
Safety and User Instructions Row-DENCO Safety and User Instructions FläktGroup units are constructed using state-of-the-art technology and according to recognized safety regulations. Use the FläktGroup units in a technically sound condition for the intended purpose observing the current operation manual, taking safety aspects and potential hazards into account. -
Page 15: Labelling Of Safety Instructions
Row-DENCO Safety and User Instructions Labelling of safety instructions To designate the safety instructions the following symbols and notices are provided in appropriate places throughout this document: 4.4.1 DANGER – Death/serious irreversible injury Indicates an extremely hazardous situation which will result in death or serious irre- versible injury, if the safety instruction is not followed. -
Page 16: Used Safety Symbols
Safety and User Instructions Row-DENCO 4.4.4 ATTENTION – Environmental or material damage ATTENTION Indicates actions that can result in equipment or property-damage only accidents. Examples: ATTENTION Risk of environmental damage! Heavily contaminated filters can have a negative impact on production processes. Depending on the filtered-out materials, contaminated filters are therefore classi- fied as hazardous waste and must be properly disposed of according to the pre- vailing guidelines and laws. -
Page 17: Safety-Conscious Work Procedures
Row-DENCO Safety and User Instructions Cooling Environmental damage Damage to the unit Safety-conscious work procedures Observe the following instructions when carrying out installation, adjustment or repair jobs: • Wear suitable protective clothing during work, such as protective footwear, gloves, safety goggles, etc. •... - Page 18 Safety and User Instructions Row-DENCO For all kinds of work: High pressure hazard! When working on hydraulic or refrigeration circuits or in case of damage to the com- ponents or piping, there is a risk of injury from fluids or gases escaping at high pres- sure.
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Page 19: Proper Use
Row-DENCO Safety and User Instructions 4.6.1 Handling refrigerants According to DIN EN 378 Part 1 the R-134a and R-410A refrigerants belong to A1 group. Refer to the unit identification plate for data and charge volume of a particular refrigerant. Observe the usage details in accordance with EC regulation 842/2006. Features of applicable refrigerant types: –... -
Page 20: Safety Devices
Safety and User Instructions Row-DENCO Personal Injury and Damage to the Unit! It is not allowed to operate FläktGroup units: – in areas subject to explosion risk – in environments with strong electromagnetic fields – in environments with high levels of air contamination –... -
Page 21: Technical Data
Row-DENCO Technical Data Technical Data Row-DENCO DX rack cooler Power supply V-Ph~Hz 230/1N/50-60 230/1N/50-60 230/1N/50-60 Refrigerant R410A R410A R410A No. of circuits CAPACITY DELIVERED Total capacity (1) 10,63 4,72 16,59 6,78 28,62 11,76 Sensible capacity (1) 9,61 4,72 15,67 6,78 27,37 11,76 0,90... -
Page 22: Row-Denco Cw Rack Cooler
Technical Data Row-DENCO Row-DENCO CW rack cooler Power supply V-Ph~Hz 230/1N/50-60 CAPACITY DELIVERED Total capacity (1) 16,14 20,52 24,6 20,95 Sensible capacity (1) 16,14 20,52 24,6 20,95 1,00 1,00 1,00 1,00 WATER SIDE No. of water circuits Water flow-rate (1) 2770 3530 4230... -
Page 23: Receipt, Transport And Handling
Row-DENCO Receipt, Transport and Handling Receipt, Transport and Handling Transport Move the Row-DENCO as near as possible to the site of installation before removing the packaging and the pallet. Remove the unit from the pallet using the special slides supplied in the packaging. The units can be lifted: –... -
Page 24: Receiving The Unit
Receipt, Transport and Handling Row-DENCO To lift and move the unit, use metal tubes (max dia. 1/2 "), inserting them in the Size feet provided, and same-length lifting cables. Dimension L 1035 1630 1630 Dimension P Dimension H 1390 1400 1900 Gross weight [kg] Net weight [kg]... -
Page 25: Standard Packaging And Packaging With Wooden Crate (Optional)
Row-DENCO Receipt, Transport and Handling Standard packaging and packaging with wooden crate (optional) Fig. 6-4: Standard packaging Fig. 6-5: packaging with wooden crate (optional) 300 X 1000 X 42U RACK 300 X 1000 X 42U RACK 1100 1100 1100 1130 1130 1130 2248... -
Page 26: Dimensional Drawings
Dimensional Drawings Row-DENCO Dimensional Drawings DRX 051-071-121 (300 X 1000 X 42U RACK) 1 7 0 CONDENSATE DRAIN PIPE REFRIGERANT CONNECTIONS KNOCKOUT 1000 IN REFRIGERANT OUT REFRIGERANT REFRIGERANT AUXILIARY CONNECTIONS CONNECTIONS KNOCKOUT AIR OUT AIR IN 2 6 6 2 9 6 FläktGroup DC-2014-0106-GB 2019-02/R3 •... -
Page 27: Drx 051-071-121 (300 X 1200 X 42U Rack)
Row-DENCO Dimensional Drawings DRX 051-071-121 (300 X 1200 X 42U RACK) CONDENSATE DRAIN PIPE OUT HUMIDIFIER DRAIN CONNECTION (Ø32) 1 1 8 3 0 0 IN HUMIDIFIER 1 2 0 0 WATER FEED CONNECTION (G ¾"M) IN REFRIGERANT OUT REFRIGERANT GRILL ON -DENCO WITH SIDE OUTLET ONLY... -
Page 28: Drc 020-035 (300 X 1000 X 42U Rack)
Dimensional Drawings Row-DENCO DRC 020-035 (300 X 1000 X 42U RACK) CONDENSATE DRAIN PIPE 1 7 0 97.5 WATER OUT WATER IN G 1"F G 1"F 3 0 0 1000 AIR IN AIR OUT WATER IN 9 7 . 5 AUXILIARY G 1"F CONNECTIONS... -
Page 29: Drc 036 (300 X 1000 X 42U Rack)
Row-DENCO Dimensional Drawings DRC 036 (300 X 1000 X 42U RACK) 2 8 6 CONDENSATE DRAIN PIPE 97.5 WATER OUT G 1"F WATER IN G 1"F 3 0 0 1000 AIR IN AIR OUT AUXILIARY WATER OUT 97.5 CONNECTIONS G 1"F 2 6 6 WATER IN 2 9 6... -
Page 30: Drc 020-035 (300 X 1200 X 42U Rack)
Dimensional Drawings Row-DENCO DRC 020-035 (300 X 1200 X 42U RACK) OUT HUMIDIFIER DRAIN CONNECTION (Ø32) 3 7 0 CONDENSATE DRAIN PIPE IN HUMIDIFIER WATER FEED CONNECTION (G ¾"M) WATER OUT WATER IN G 1"F G 1"F 1 2 0 0 GRILL ON Row-DENCO WITH SIDE OUTLET ONLY WATER OUT WATER IN... -
Page 31: Drc 036 (300 X 1200 X 42U Rack)
Row-DENCO Dimensional Drawings DRC 036 (300 X 1200 X 42U RACK) OUT HUMIDIFIER CONDENSATE 4 8 6 DRAIN CONNECTION (Ø32) DRAIN PIPE 1 1 8 WATER OUT G 1"F WATER IN G 1"F IN HUMIDIFIER WATER FEED CONNECTION (G ¾"M) 1 2 0 0 GRILL ON Row-DENCO WITH SIDE OUTLET ONLY WATER OUT... -
Page 32: Drou 051 And Drou 071
Dimensional Drawings Row-DENCO DROU 051 and DROU 071 DROU 051 1: POWER SUPPLIES 2: POWER TRANSDUCER (OPT.) 3: DOUBLE POWER SUPPLY (OPT.) 4: LIQUID LINE Ø 3/8" 5: GAS LINE Ø 18 6: GAS LINE Ø 22.2 ODS 7: LIQUID LINE Ø 16.2 ODS 358,5 61,5 DROU 071... -
Page 33: Drou 121
Row-DENCO Dimensional Drawings DROU 121 DROU 121 1: POWER SUPPLIES 2: GAS LINE Ø 22.2 ODS 3: LIQUID LINE Ø 16.2 ODS 1507 1480 1450 1107 CENTER OF GRAVITY FläktGroup DC-2014-0106-GB 2019-02/R3 • Subject to modifications... -
Page 34: Installation
Installation Row-DENCO Installation Overview Diagram 8.1.1 DROU DROUD 051A1N DROUD 071A1N DROUD 121A1N 1: 2-WAY MANUAL VALVE FOR REFRIGERANT CONNECTION (3/4" FLARE) 2: PRESSURE GATE 5/16 SAE 3: COMPRESSOR 4: CRANK CASE HEATHER 5: OIL SEPARATOR 6: STRAINER 7: CAPILLARY TUBE 8: HIGH PRESSURE SWITCH 9: CONDENSER 10: FAN... - Page 35 Row-DENCO Installation DROUD 051A1W DROUD 071A1W DROUD 121A1W 1: 2-WAY MANUAL VALVE FOR REFRIGERANT CONNECTION (3/4" FLARE) 2: PRESSURE GATE 5/16 SAE 3: COMPRESSOR 4: CRANK CASE HEATHER 5: OIL SEPARATOR 6: STRAINER 7: CAPILLARY TUBE 8: HIGH PRESSURE SWITCH 9: CONDENSER 10: FAN 11: LIQUID RECEIVER...
- Page 36 Installation Row-DENCO 8.1.3 DRC DRC 3020-3035 A5 DRC 3036 A5 3-WAY MODULATING VALVE AIR INTAKE TEMPERATURE PROBE Water In HEAT EXCHANGER AIR OUTLET TEMPERATURE PROBE Water Out WATER TEMPERATURE PROBE Fans 2-WAY ON/OFF VALVE (OPTION) Fig. 8-3 FläktGroup DC-2014-0106-GB 2019-02/R3 • Subject to modifications...
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Page 37: Install Row-Denco
Row-DENCO Installation Install Row-DENCO The Row-DENCO indoor unit can rest directly on the floor, perfectly level, using the adjustable feet: incorrect levelling may cause condensate to overflow from the collec- tion pan. ATTENTION Risk of damage to the unit! The Row-DENCO must be installed indoors and in non- aggressive environments. FläktGroup accepts no liability for incorrect installation when positioning the unit. -
Page 38: Connection Of The Refrigeration Circuit To The External Evaporator (On-Site)
Installation Row-DENCO 8.2.3 Clearances Fig. 8-4 Connection of the refrigeration circuit to the external evaporator (on-site) Notice! Medium connections may only be carried out by qualified licensed staff or other individuals with proper professional training and experience in the relevant acci- dent prevention regulations, as well as other generally recognized safety and occu- pational health codes (also refer to section 4.10 "Personnel selection and qualification"). - Page 39 Row-DENCO Installation Oil transportation must be When dimensioning the pipes, make sure that oil transportation is ensured under all ensured operating conditions. Oil transportation must be ensured using the corresponding pipe dimensioning and pipe routing. Keep pressure drop as low It is also important that the pressure drop in the pipework is minimized to avoid as possible unnecessary decreases in capacity.The greater the selected pipe diameter, the lower...
- Page 40 Installation Row-DENCO Row-DENCO 1/100 intake max 50 m Row-DENCO 1/100 DRX/DROU 051 intake max 15 m DRX/DROU 071-121 max 30 m intake 1/100 max 15 m Row-DENCO max 3 m max 3 m N.B.: Install oil traps as shown in the figure, making sure to fill them with oil during commissioning the system.
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Page 41: Refrigerant Connections (Drx/Drou)
Row-DENCO Installation Refrigerant connections (DRX/DROU) 8.4.1 Diameters of the connections inside the unit The diameter of the refrigerant lines between the Row-DENCO and the condensing unit must be complied with, otherwise the warranty will be void. Avoid tight bends in the pipes (the radius of curvature should be at least equal to the diameter of the pipe). - Page 42 Installation Row-DENCO Nominal diameter (mm) 90° 45° 180° 90° 0,55 0,27 0,85 2,40 2,10 0,60 0,30 0,95 2,70 2,40 0,70 0,35 1,10 3,20 2,80 0,80 0,45 1,30 4,00 3,30 1,10 0,55 1,75 5,00 4,50 Tab. 8-2: Equivalent lengths in metres of curved sections, on-off and non-return valves Model Refrigerant charge (kg) Oil charge (l)
- Page 43 Row-DENCO Installation Cutting Use a pipe cutter to cut pipes, and cut slowly to avoid copper pipe deformation. Deburring Cut surfaces must be deburred. Ensure that copper chips do not penetrate into the pipe. Soldering and brazing Brazing is the prescribed connection technique and is performed as hard-soldering method defined according to DIN EN 1044.
- Page 44 Installation Row-DENCO Insulation Insulation for the liquid line is not mandatory. A professional heat insulation should be provided for the suction line. Moreover, fire protection regulations must be observed. If the thermal insulation is subjected to direct sunlight, proper materials must be used in this case.
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Page 45: Water Connections (Drc)
Row-DENCO Installation 8.4.5 Leak testing • Connect the manometer to the service connections of the respective refrigeration circuit on the suction and pressure side. • Before leak testing, examine the pressure values on the high and low-pressure manometer • Indicated pressure must be within the overpressure range. •... - Page 46 Installation Row-DENCO • The water pipes can be connected either from the top or the bottom. On the side uses, remove the cap from the inlet and outlet manifolds and connect the flexible piping. • Make sure that the cross-section of the chilled waterlines and the characteristics of the circulating pump are suitable: an insufficient water flow-rate affects performance of the Row-DENCO.
- Page 47 Row-DENCO Installation intermediate heat exchanger must be installed upstream of the heat exchangers on the chiller assembly. 8.5.2 Correction factors Ethylene glycol solutions Water and ethylene glycol solutions used as a heat carrier in the place of water reduce the performance of the unit. Multiply the performance figures by the values given in the following table.
- Page 48 Installation Row-DENCO Continuous pressure drop for steel pipes (inches) – water temperature = 10 °C Linear Pressure Drops, (mm w.c./m) Selection Example: • consider a limit speed inside the pipe of 1-1.2m/s • cross-reference the required water flow-rate (in the example 5,000 l/h) •...
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Page 49: Electrical Connection
Row-DENCO Electrical Connection Electrical Connection Electrical connections may only be carried out by qualified licensed staff or other individuals with proper professional training and experience in the relevant acci- dent prevention regulations, as well as other generally recognized safety and occupational health codes. - Page 50 Electrical Connection Row-DENCO EXAMPLE Input data Result Requirements Rated voltage 400 V/50 Hz/3 phases Calculate and determine specific in- L1/L2 = 409 V; L2/L3 = 398 V; L1/L3 = 396 V Voltage between put data and measurements before- phases hand.
- Page 51 Row-DENCO Electrical Connection • Power to the unit must be turned on only after installation work (refrigerant circuit and electrical) has been completed. • All electrical connections must be carried out by qualified personnel in accordance with legislation in force in the country concerned •...
- Page 52 Electrical Connection Row-DENCO • Connect the power cable to the IEC male plug supplied with the (see photo Abb. 9- 3) and plug this into socket "P", shown in the figure, located on the top of the unit. Fig. 9-2: IEC male plug •...
- Page 53 Row-DENCO Electrical Connection ATTENTION Risk of damage to the unit! Terminals that are not adequately tight may generate heat and sparks, cau- sing fire • Use suitably rated power supply cables. Cables that are too small and undersized may generate heat and cause fires. •...
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Page 54: Drx Connection Configuration
Electrical Connection Row-DENCO DRX Connection Configuration POWER TRANSDUCER KIT (#1) + STANDARD HEATERS AND/OR HUMIDIFIER POWER TRANSDUCER KIT (#1) + DUAL POWER SUPPLY KIT (#2) + DUAL POWER SUPPLY KIT (#2) HEATERS AND/OR HUMIDIFIER KIT #1 KIT #1 KIT #1 KIT #1 KIT #2 KIT #2... -
Page 55: Drc Connection Configuration
Row-DENCO Electrical Connection DRC connection configuration ATTENTION KEEP SIGNAL CABLES AND POWER CABLES SEPARATE: • use low-impedance twisted shielded cables for the signals • for distances over 8 metres galvanically isolate the signal cables STANDARD DOUBLE POWER SUPPLY KIT HEATERS AND/OR HUMIDIFIER POWER TRANSDUCER KIT (#1) + POWER TRANSDUCER KIT DUAL POWER SUPPLY KIT +... -
Page 56: Electrical Specifications
Electrical Connection Row-DENCO Electrical specifications The cross-section of the power cable must be chosen according to the length of the cable and the type of installation, based on the maximum current draw of the Row- DENCO and so as to prevent excessive voltage drops (the power supply voltage must be between ±... -
Page 57: Commissioning And Testing
Row-DENCO Commissioning and Testing 10 Commissioning and Testing 10.1 Evacuation Reasons for evacuation Before charging the system with a refrigerant, the refrigeration circuit must be evacua- ted using a vacuum pump in order to remove air and humidity. Air in the refrigeration circuit has the following effects: –... -
Page 58: Charging
Commissioning and Testing Row-DENCO Pressure rise after evacuation 0,018 Humid and leaking 0,016 0,014 0,012 Humid and leak-free 0,01 at Ta = +10 °C 0,008 0,006 0,004 0,002 Dry and leak-free Time [h] Fig. 10-1: Pressure rise after evacuation 10.2 Charging Danger of low temperature and high pressure! When charging a refrigeration system with a refrigerant, there is a risk of injury from... - Page 59 Row-DENCO Commissioning and Testing – the unit is correctly earthed – all electrical and refrigerant connections are tight Before starting up, power up the unit for at least two hours by switching QF and QS to ON, so as to allow the oil in the compressor sump to heat up. 10.3.1 Commissioning (after the 2 hours) Before starting the condensing unit: •...
- Page 60 Commissioning and Testing Row-DENCO • Replace the inspection panel • Move the mains switch QF (outside the unit) to the ON position Fig. 10-7 10.3.2 Starting and stopping the unit • Move remote switch SA1 (if featured) to the ON position. •...
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Page 61: Condensate Drain
Row-DENCO Commissioning and Testing 10.4 Condensate drain Condensate is removed from the pan located underneath the unit; the end of the drain pipe should be connected to the sewerage system in the building via a rubber or plastic hose with an inside diameter of 16 mm. During installation, pour water into the condensate collection pan so as to fill the drain trap with water. -
Page 62: Modulating Water Valve
Commissioning and Testing Row-DENCO These valves have a much wider modulation capacity than traditional mechanical ther- mostatic valves; this feature is essential in applications with operation at part load. The electronic expansion valve does not require calibration in the field, as all the para- meters are set directly in the factory. - Page 63 Row-DENCO Commissioning and Testing Manual override The knob on the servomotor can be used to move the actuator to all positions between 0 and 1. If the control signal is applied, this has priority in determining the valve position. (Y, Y1) (Y2) in position 1: in position 0:...
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Page 64: 2-Way Valve Shut Off
Commissioning and Testing Row-DENCO Repair The servomotor cannot be repaired and if necessary must be replaced completely. 90° 90° AB 0…100% AB 100…0% Fig. 10-14 VVP... VXP... " [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [kg] >280 52,5 52,5 62,5 1,95 1,70... -
Page 65: 2-Way On/Off Valve (Optional)
Row-DENCO Commissioning and Testing 10.10 2-Way ON/OFF valve (optional) The on-off valve shuts off water flow into the DRC unit (see OVERVIEW DIAGRAM) in the event of a flood alarm. The 2-way ON/OFF valve kit comprises: – valve body – 24 VAC electric servo control with limit switch –... -
Page 66: Energy Monitoring (Optional)
Commissioning and Testing Row-DENCO 10.12 Energy monitoring (optional) This device provides continuous measurement of power consumption, monitoring cur- rent, voltage and power. These values can be sent to BMS systems via a serial connection, fitting the unit with a communication board to manage the specific protocol. Connect the device to the Row-DENCO indoor unit via RS485 serial cable, as shown on the unit wiring diagram. -
Page 67: Humidifier
Row-DENCO Commissioning and Testing 10.14 Humidifier 10.14.1 System components Upon request, the air-conditioning unit can be fitted with an immersed electrode humi- difier. 2.TA1 1. A3 9. B1 8.YV2 7.YV1 10.BH1 Fig. 10-19: Components 1: Humidifier interface board: A3; (inside the electrical panel). 2: Current transformer TA1 (inside the electrical panel) for measuring the current input of the steam cylinder. - Page 68 Commissioning and Testing Row-DENCO The operations indicated below should be performed annually, preferably before shut- ting down the unit in summer. 10.14.3 Fill and drain assemblies To ensure the correct operation of the humidifier, the supply/fill and drain assemblies need to be inspected periodically. Proceed as follows: •...
- Page 69 Row-DENCO Commissioning and Testing LIMITS LIMIT VALUES FOR IMMERSED ELECTRODE HUMIDIFIER FEED WATER WITH MEDIUM-HIGH CONDUCTIVITY Mains pressure Hydrogen ions σ Specific conductivity at 20°C μS/cm 1250 R, 20 °C Total dissolved solids mg/l Dry residue at 180°C mg/l Total hardness mg/l CaCO3 100( Temporary hardness...
- Page 70 Commissioning and Testing Row-DENCO 10.14.7 Condensate drain pump and humidifier drain pump Depending on the version, a condensate drain pump or a humidifier drain pump with mechanical features such as to be able to resist the high temperatures of the water exi- ting the steam cylinder.
- Page 71 Row-DENCO Commissioning and Testing 10.14.8 Condensate drain pump for high water temp. (humidifier) These pumps are designed to collect the hot water produced by the humidifier drain cycles, as well as the condensate produced. The pump body is made from Cycoloy, a heat-resistant material, the pre-wired safety float is a low voltage switch used to stop the drain cycle in the unlikely event where the pump malfunctions.
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Page 72: Maintenance
Commissioning and Testing Row-DENCO Maintenance guide At least once every 6 months, pour a bactericidal solution into the tank, to prevent accumulation of residues and sludge at the bottom that may cause the pump to mal- function. NB: Users must check that any chemicals contained in the condensate are compatible with operation of the pump. - Page 73 Row-DENCO Commissioning and Testing If maintenance or replacement of the fans is required, these can be removed without having to power down the entire unit. • Open the front door and remove the quick-connect power to the fault fan that has to be replaced (see Fig.
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Page 74: Maintenance
Maintenance Row-DENCO 11 Maintenance ATTENTION Risk of damage to the unit! Every components replacement (compressor, safety pressostat, liquid receiver, ecc.) have to consider the main component list enclosed in the unit. This section, aimed above all for the end user, is extremely important for the correct operation of the appliance. -
Page 75: Checking And Cleaning The Drains
Row-DENCO Maintenance 11.3 Checking and cleaning the drains All the water drains (humidifier and condensate) must ensure perfect drainage, to avoid flooding in the room. When the humidifiers drain the water, they discharge a quantity of lime scale that depends on the hardness of the supply water. This lime scale may accumulate in the bottom of the drain hose and block the flow of water. -
Page 76: Troubleshooting
Troubleshooting Row-DENCO 12 Troubleshooting Troubleshooting is simplified by the information provided by the microprocessor con- troller: if an alarm is signalled, refer to the controller manual. If required, contact the nearest service centre, indicating the probable causes of the fault. FAULT CAUSE FAULT... - Page 77 Row-DENCO Troubleshooting FAULT CAUSE FAULT The parameter settings on the microprocessor controller See the controller manual. AMBIENT HUMIDITY TOO HIGH are not correct. Check and calculate the latent load; check the flow-rate Latent load higher than expected and the conditions of the outside air; check the inflow of outside air.
- Page 78 Troubleshooting Row-DENCO FAULT CAUSE FAULT HEATER SAFETY THERMO- Insufficient air flow-rate See “LOW OR NO AIR FLOW”. STAT ACTIVATED Check the continuity of the connection from the safety Thermostat connection wire cut or broken thermostat to the control system. Faulty thermostat Replace the heater safety thermostat.
- Page 79 Row-DENCO Troubleshooting FAULT CAUSE FAULT LOW COMPRESSOR The condensing pressure control system isn't working Check the calibration and the operation of the conden- DISCHARGE PRESSURE (see the control panel manual). ser fan pressure switch or the speed controller; Check the temperature of the cooling water. Excessive water flow-rate to the condenser or water too Check the calibration and the operation of the pressure cold.
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Page 80: Dismantling And Disposal
Dismantling and Disposal Row-DENCO 13 Dismantling and Disposal ATTENTION Risk of environmental damage! Have qualified licensed staff dismantle and dispose of the unit! 13.1 Dismantling To dismantle the units proceed as follows: Electrocution through hazardous voltage will lead to death or serious injury. When carrying out decommissioning and dismantling work on the unit: •... -
Page 81: Disposal
Row-DENCO Dismantling and Disposal 13.2 Disposal Notice! The operator of the refrigeration unit is responsible for taking all necessary precau- tionary measures and ensures that only certified and licensed staff properly recovers, recycles, processes and disposes of fluorinated refrigerants containing greenhouse gases (F-Gases in accordance with Fluorinated Greenhouse Gases Regulation (EU) No 517/2014). -
Page 82: Log Book For Chiller, Heat Pumps And Compressor/Condenser Units
Appendix I 14.1 Log Book for Chiller, Heat Pumps and Compressor/Condenser Units Log Book for Chillers, Heat Pumps and Compressor/Condenser Units System Data Producer Refrigerant Type Refrigerant charge Serial number Oil type Year of manufacture Oil charge volume Type of system Chiller Heat pump Comp./condenser unit... - Page 83 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 84 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 85 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 86 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 87 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 88 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 89 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
- Page 90 Date / Visit Nr. Company: Certificate Nr.: Service technician: Certificate Nr.: Leak testing yes / Result: Refrigerant charged yes / Reason: Refrigerant evacuated yes / Reason: Leak system test yes / Result: Repairs Required measures Units leak tested, safety devices checked and function test passed. Name Signature Date / Visit Nr.
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- Page 92 WWW.FLAKTGROUP.COM ROW-DENCO FläktGroup is the European market leader for smart and energy efficient Indoor Air and Critical Air solutions to support every application area. We offer our customers innovative technologies, high quality and outstanding performance supported by more than a century of accumulated industry experience. The widest product range in the market, and strong market presence in 65 countries worldwide, guarantee that we are always by your side, ready to deliver Excellence in Solutions.