User Guide for Danfoss models including: AQ190186478000en-010401, Termix AT BTD Thermostatic Valve, Termix AT BTD, Thermostatic Valve, Valve
File Info : application/pdf, 24 Pages, 1.65MB
DocumentDocumentOperating Guide Termix AT BTD 1.0 Table of Contents 1.0 Table of Contents ............................................. 1 ........................................................................ 2 2.0 Functional description...................................... 3 3.0 Safety notes..................................................... 4 3.1 Safety Notes general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 8.0 Troubleshooting .............................................. 17 8.1 Troubleshooting in general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.2 Troubleshooting DHW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 9.0 Declaration...................................................... 23 9.1 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.0 Mounting ........................................................ 5 4.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5.0 Mounting instructions Termix AT BTD wall cabinet............................................................ 8 5.1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6.0 Design............................................................. 10 6.1 Design Termix AT BTD 5 pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.2 Schematic diagram Termix AT BTD 5 Pipes . . . . . . . . . . . . . . . . . . . . 11 6.3 Design Termix AT BTD 4 pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.4 Schematic diagram Termix AT BTD 4 Pipes . . . . . . . . . . . . . . . . . . . . 13 7.0 Controls .......................................................... 14 7.1 DHW temperature control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7.2 Other. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.3 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 | 1 Operating Guide Termix AT BTD 2 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 2.0 Functional description District heating substation with tank for domestic hot water preparation and with thermostatic control. Designed for wall-mounting. Application The Termix AT BTD substation is a complete solution for hot water. The Termix AT BTD is applicable for single-family houses or apartments. Domestic hot water (DHW) The domestic hot water circuit consists of a hot water tank with coil and self-acting thermostatic control valve. The hot water tank and coil are enamelled and the tank contains a magnesium anode. The substation is delivered with a built in safety valve. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 3 Operating Guide Termix AT BTD 3.0 Safety notes 3.1 Safety Notes general The following instructions refer to the standard design of substation. Special versions of substations are available on request. This operating manual should be read carefully before installation and start-up of the substation. The manufacturer accepts no liability for damage or faults that result from non-compliance with the operating manual. Please read and follow all the instructions carefully to prevent accidents, injury and damage to property. Assembly, start-up and maintenance work must be performed by qualified and authorized personnel only. Please comply with the instructions issued by the system manufacturer or system operator. Corrosion protection All pipes and components are made of stainless steel and brass. The maximum chloride compounds of the flow medium should not be higher than 150 mg/l. The risk of equipment corrosion increases considerably if the recommended level of permissible chloride compounds is exceeded. Energy source The substation is designed for district heating as the primary source of energy. However, also other energy sources can be used where the operating conditions allow it and always are comparable to district heating. Application The substation is designed to be connected to the house installation in a frost-free room, where the temperature does not exceed 50 °C and the humidity does not exceed 60%. Do not cover or wall up the substation or in any other way block the entrance to the station. Choice of material Choice of materials always in compliance with local legislation. Safety valve(s) We recommend mounting of safety valve(s), however, always in compliance with local regulations. Connection The substation must be equipped with features that ensure that the substation can be separated from all energy sources (also power supply). Emergency In case of danger or accidents - fire, leaks or other dangerous circumstances - interrupt all energy sources to the station if possible, and seek expert help. In case of discoloured or bad-smelling domestic hot water, close all shut-off valves on the substation, inform the operating personnel and call for expert help immediately. REACH All Danfoss A/S products fulfill the requirements in REACH. One of the obligations in REACH is to inform customers about presence of Candidate list substances if any, we hereby inform you about one substance on the candidate list: The product contains brass parts which contains lead (CAS no: 7439-92-1) in a concentration above 0.1% w/w. Storage Any storage of the substation which may be necessary prior to installation should be in conditions which are dry and heated. Authorized personnel only Assembly, start-up and maintenance work must be performed by qualified and authorized personnel only. Please observe instructions carefully To avoid injury to persons and damage to the device, it is absolutely necessary to read and observe these instructions carefully. Warning of high pressure and temperature Be aware of the installation's permissible system pressure and temperature. The maximum temperature of the flow medium in the substation is 120 °C. The maximum operating pressure of the substation is 10 bar. PN 16 versions are available on enquiry. The risk of persons being injured and equipment damaged increases considerably if the recommended permissible operating parameters are exceeded. The substation installation must be equipped with safety valves, however, always in accordance with local regulations. Warning of hot surface The substation has got hot surfaces, which can cause skin burns. Please be extremely cautious in close proximity to the substation. Power failure can result in the motor valves being stuck in open position. The surfaces of the substation can get hot, which can cause skin burns. The ball valves on district heating supply and return should be closed. Warning of transport damage Before substation installation, please make sure that the substation has not been damaged during transport. IMPORTANT - Tightening of connections Due to vibrations during transport all flange connections, screw joints and electrical clamp and screw connections must be checked and tightened before water is added to the system. After water has been added to the system and the system has been put into operation, re-tighten ALL connections. 4 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 4.0 Mounting 4.1 Mounting Installation must be in compliance with local standards and regulations. District heating (DH) - In the following sections, DH refers to the heat source which supplies the substations. A variety of energy sources, such as oil, gas or solar power, could be used as the primary supply to Danfoss substations. For the sake of simplicity, DH can be taken to mean the primary supply. Authorized personnel only Assembly, start-up and maintenance work must be performed by qualified and authorized personnel only. Connection sizes: All connections: G ¾" (int. thread) Dimensions (mm): With cover: 100L: H 1180 x W 540 x D 520 150L: H 1510 x W 540 x D 520 Weight (approx.): 85 100 kg Termix AT BTD 5 pipes The pipe placement can deviate from the shown drawing. Please note the markings on the station. Termix AT BTD 4 pipes The pipe placement can deviate from the shown drawing. Please note the markings on the station. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 5 Operating Guide Termix AT BTD 4.1.1 Installation Mounting: Adequate space Please allow adequate space around the substation for mounting and maintenance purposes. Orientation The station must be mounted so that components, keyholes and labels are placed correctly. If you wish to mount the station differently please contact your supplier. Drillings Where substations are to be wall-mounted, drillings are provided in the back mounting plate. Floor mounted units have support. Labelling Each connection on the substation is labelled. Before installation: Clean and rinse Prior to installation, all substation pipes and connections should be cleaned and rinsed. Tightening Due to vibration during transport, all substation connections must be checked and tightened before installation. Unused connections Unused connections and shut-off valves must be sealed with a plug. Should the plugs require removal, this must only be done by an authorized service technician. Installation: Strainer If a strainer is supplied with the station it must be fitted according to schematic diagram. Please note that the strainer may be supplied loose. Connections Internal installation and district heating pipes connections must be made using threaded, flanged or welded connections. 6 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 4.2 Start-up Start-up, Direct heating The shut-off valves should be opened and the unit observed as it enters service. Visual checking should confirm temperatures, pressures, acceptable thermal expansion and absence of leakage. If the heat exchanger operates in accordance with design, it can be put to regular use. After water has been added to the system and the system has been put into operation, re-tighten ALL connections. Re-thighten connections After water has been added to the system and the system has been put into operation, re-tighten ALL connections. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 7 Operating Guide Termix AT BTD 5.0 Mounting instructions Termix AT BTD wall cabinet 5.1 Mounting Wall bracket Mount the Wall bracket according to the Drawing. Use A to center the tank on the bracket. B - All pipe threads are ISO ½". Mount the container unit in the wall bracket. 8 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD Side plates Fasten the right and left side plates by placing the key holes over the screws on the sides of the wall bracket. 1 Bottom panel Slide the slots in the bottom panel onto the 2 bushes in the side plates, and fasten the panel with the 2 screws in the front. 2 Top plate Mount the top plate. 3 Front cover Mount the front cover by lowering the key holes onto the screws in the side plates. 4 Clock panel Mount the clock panel by lowering the key holes onto the screws in the side plates. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 9 Operating Guide Termix AT BTD 6.0 Design 6.1 Design Termix AT BTD 5 pipes Your substation might look different than the substation shown. Design description E Hot water tank with coil S Siphon 1A Ball valve, DVGW 2 Single check valve 4 Safety valve 20 Filling/drain valve 41A Fitting piece, cold water mains 59 Differential pressure/temperature regulator with flow limiting 10 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 6.2 Schematic diagram Termix AT BTD 5 Pipes DHW DCW CWM DH Supply DH Return Your substation might look different than the schematic diagram shown. Schematic description E Hot water tank with coil 1 Ball valve 1A Ball valve, DVGW 2 Single check valve 4 Safety valve 20 Filling/drain valve 41A Fitting piece, cold water mains 59 Differential pressure/temperature regulator with flow limiting DHW: DCW: CWM: DH Supply: DH Return: Domestic Hot Water Domestic Cold Water Cold water mains District Heating Supply District Heating Return VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 11 Operating Guide Termix AT BTD 6.3 Design Termix AT BTD 4 pipes Your substation might look different than the substation shown. Design description E Hot water tank with coil S Siphon 1A Ball valve, DVGW 2 Single check valve 4 Safety valve 20 Filling/drain valve 59 Differential pressure/temperature regulator with flow limiting 12 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 6.4 Schematic diagram Termix AT BTD 4 Pipes DHW DCW DH Supply DH Return Your substation might look different than the schematic diagram shown. Schematic description E Hot water tank with coil 1 Ball valve 1A Ball valve, DVGW 2 Single check valve 4 Safety valve 20 Filling/drain valve 59 Differential pressure/temperature regulator with flow limiting DHW: DCW: DH Supply: DH Return: Domestic Hot Water Domestic Cold Water District Heating Supply District Heating Return 6.4.1 Technical parameters Technical parameters Nominal pressure: Max. DH supply temperature: PN 10 Tmax = 95 °C VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 13 Operating Guide Termix AT BTD 7.0 Controls 7.1 DHW temperature control DHW temperature control There are various types of DHW temperature control used in Danfoss substations. DHW temperature should be adjusted to 45-50 °C, as this provides optimal utilisation of DH water. At DHW temperatures above 55 °C, the possibility of lime scale deposits increases significantly. 7.1.1 AB-QM controller (4560 °) QT is a self-acting thermostatic actuator designed to be used as return temperature control thermostat in one-pipe heating systems. QT is dedicated to be used with AB-QM automatic balancing & control valve. AB-QM DN 10-20 (45-60 °C) QT Sensor setting (turns) Temperature setting 012345 6 20 % 48,0 50,5 53,0 55,5 58,0 60,5 63,0 30 % 47,0 49,5 52,0 54,5 57,0 59,5 62,0 40 % 46,0 48,5 51,0 53,5 56,0 58,5 61,0 AB-QM (flow setting) 50 % 60 % 70 % 45,0 47,5 50,0 52,5 55,0 57,5 60,0 44,0 46,5 49,0 51,5 54,0 56,5 59,0 43,0 45,5 48,0 50,5 53,0 55,5 58,0 80 % 42,0 44,5 47,0 49,5 52,0 54,5 57,0 90 % 41,0 43,5 46,0 48,5 51,0 53,5 56,0 100 % 40,0 42,5 45,0 47,5 50,0 52,5 55,0 The values are intended as a guide. 14 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 7.2 Other 7.2.1 Cold water meter fitting piece The substation is equipped with a fitting piece for cold water meter. Assembly of cold water meter: 1: Close ball valves Close the ball valves on cold water, if there is water on the system. 2: Loosen nuts Loosen the nuts on the fitting piece. 3: Remove fitting piece Remove the fitting piece and replace it with the cold water meter. Do not forget the gaskets. 4: Tighten connections After mounting of the cold water meter remember to check and tighten all threaded connections. 7.2.2 Siphon Placed the Siphon directly under the Safety valve. Ensure that the drainpipe has a minimum internal diameter of 32mm. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 15 Operating Guide Termix AT BTD 7.3 Maintenance The substation requires little monitoring, apart from routine checks. It is recommended to read the energy meter at regular intervals, and to write down the meter readings. Regular inspections of the substation according to this Instruction are recommended, which should include: Strainers Cleaning of strainers. Meters Checking of all operating parameters such as meter readings. Temperatures Checking of all temperatures, such as DH supply temperature and DHW temperature. Connections Checking all connections for leakages. Safety valves The operation of the safety valves should be checked by turning the valve head in the indicated direction. Venting Checking that the system is thoroughly vented. Inspections should be carried out minimum every two years. Spare parts can be ordered from Danfoss. Please ensure that any enquiry includes the substation serial number. Authorized personnel only Assembly, start-up and maintenance work must be performed by qualified and authorized personnel only. 16 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 8.0 Troubleshooting 8.1 Troubleshooting in general In the event of operating disturbances, the following basic features should be checked before carrying out actual troubleshooting: · the substation is connected to electricity, · the strainer on the DH supply pipe is clean, · the supply temperature of the DH is at the normal level (summer, at least 60 °C - winter, at least 70 °C), · the differential pressure is equal to or higher than the normal (local) differential pressure in the DH network if in doubt, ask the DH plant supervisor, · pressure on the system - check the HE pressure gauge. Authorized personnel only Assembly, start-up and maintenance work must be performed by qualified and authorized personnel only. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 17 Operating Guide Termix AT BTD 8.2 Troubleshooting DHW Problem Too little or no DHW. Hot water in some taps but not in all. Tap temperature too high; DHW tap load too high. Temperature drop during tapping. Thermostatic control valve does not close Possible cause Solution Strainer in supply or return line clogged. Clean strainer(s). DHW circulation pump out of order or with Check circulation pump. too low setting. Defective or clogged non-return valve. Replace clean. No electricity. Check. Wrong setting of automatic controls, if any. To adjust an electronic controller for DHW, pls. note enclosed instructions for electronic controller. Scaling of the plate heat exchanger. Replace rinse out. Defective motorized valve. Check (use manual function) replace. Defective temperature sensors. Check replace. Defective controller. Check replace. DCW is being mixed with the DHW, e.g. in a Check replace. defective thermostatic mixing valve. Defective or clogged non-return valve on Replace clean. circulation valve. Thermostatic valve adjusted to a too high Check set. level. Scaling of the plate heat exchanger. Replace rinse out. Larger DHW flow than the substation has Reduce DHW flow. been designed for. Temperature difference between DH supply and DHW set point too low. Lower the set point temperature or increase the DH supply temperature. 18 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 8.3 Disposal Disposal This product should be dismantled and its components sorted, if possible, in various groups before recycling or disposal. Always follow the local disposal regulations. VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 19 Operating Guide Termix AT BTD 20 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 21 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 22 | © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692 Operating Guide Termix AT BTD 9.0 Declaration 9.1 Declaration of conformity Category 0 without electrical equipment VI.JV.Y4.02 / LUK40692 © Danfoss | 2019.04 | 23 Operating Guide Termix AT BTD 24| © Danfoss | 2019.04 VI.JV.Y4.02 / LUK40692Danfoss A/S GPL Ghostscript 10.03.1