Page 1 Installation and operating manual Sabroe WHC - 2.1 - circulation system for heat pumps and refrigeration compressors...
Page 3 Contents Introduction ...................4 Safety ....................5 Design and function ................6 Mounting and connections ..............9 Start-up and commissioning ............... 12 Alarms ....................14 Service and maintenance ..............15 Technical data and dimensions ............16 Appendices ..................17 Installation and operating manual - Sabroe WHC circulation system 011162 en 2021.05 3/17...
Page 4 Amendments to the manual 2021.05 Version 4 • New flow switch: SIKA, VHS15M. 2019.11 Version 3 New features of Sabroe WHC 2.1: • Pump control for supplementary supply pump • Electric LED plug for indication of flow failure. 2019.05 Version 2 New features of Sabroe WHC 2.0:...
Page 5 Circulation of aggressive liquids such as acid and salt water. Warning! Johnson Controls Denmark is not liable for injuries to personnel or damage to equipment, re- sulting from using the equipment for other purposes than the ones stated above. Warning! The circulation system must be filled with water and air purged before power is turned on.
Page 6 Design and function 3. Design and function The Sabroe WHC circulation system is designed to maintain optimum cooling water tempera- ture on heat pumps and refrigeration compressors with water-cooled top and side covers. The system ensures a constant cooling water temperature thus giving the compressor optimum op- erating conditions.
Page 7 Design and function • The WHC controller receives a start signal from the compressor. The start signal changes the set point for the water temperature, so it is possible to have a higher water temperature at standstill (heating) and a lower temperature in operation (cooling). •...
Page 8 Design and function The complete WHC system (without hoses), part. no. 3446.1004, consists of: Quantity Description Position Part no. 2214.1018 Bracket 1 for WHC system 2214.1013 Bracket 2 for WHC system 1349.265 Straight screw joint 1553.1045 Flow switch 1346.215 Nipple pipe 1/2” 100 mm 1367.078 Pipe clamp Ø21.3 single 1352.1003...
Page 9 Mounting and connections 4. Mounting and connections If the circulation system is sold with a heat pump or a chiller, the system will already be mounted and connected on delivery. If the system is sold with a compressor unit, it will not be fastened as the system should not be mounted directly on the compressor or the compressor base frame because of vibrations.
Page 10 Mounting and connections Supplementary pump Fig. 4 On the circulation side, the system must be connected to the compressor cooling hoses by the two provided cooling hoses. The two provided hoses are of a length allowing them to be cut to the length required.
Page 11 Mounting and connections During pressure testing, the regulating valve (Fig. 2, pos. 18) and the solenoid valve (Fig. 2, pos. 16) must be open. Draining The system must be turned off before draining as the heating element and pump may be dam- aged if there is air in the system.
Page 12 Start-up and commissioning 5. Start-up and commissioning The circulation system must be charged with water and air purged before voltage is applied to the system. Warning! Scalding risk. The water in the system is hot both during operation and standstill. Setting the water temperature Standstill (heating mode) While the compressor is stopped, the WHC system is in heating mode, which means that the...
Page 13 Start-up and commissioning Maximum and minimum media temperature The controller is set up to stop the compressor if the cooling media is either too cold or too warm. • Minimum (alarm) temperature: 35°C. • Maximum (alarm) temperature: 85°C. For further description of the controller, see Appendices A & B. Flow setting of regulating valve The setting of the regulating valve (Fig.
Page 14 Alarms 6. Alarms Low flow • The electric plug LED at the flow switch (Fig. 2 , pos. 4) will be on. • The heating element will be disconnected. • The compressor will stop (if the WHC control box is connected to the compressor controller).
Page 15 Service and maintenance 7. Service and maintenance It is recommended to check the cooling water temperature regularly and ensure that the sys- tem is working optimally. See the subsection "Setting of water temperature" in section 5. The strainer (Fig. 2, pos. 20) should be checked and cleaned of dirt on a regular basis. If addi- tional space is needed during service of the compressor unit, the circulation system can be detached.
Page 16 Technical data and dimensions 8. Technical data and dimensions Supply voltage: 1 x 230 V +/-10%, 50/60 Hz Output: 1200 W Ambient temperature: 0°C to 40°C Liquid temperature: 2°C to 93°C System pressure: Max. 10 bar Inlet pressure: Min. 0.3 bar Differential pressure (in/out): Min.
Page 17 Appendices 9. Appendices A: Quick guide – WHC control box B: Manual – WHC control box C: Grundfos instructions, Alpha 2 D: Frese, SIGMA regulating valve E: Danfoss, EV250B solenoid valve F: SIKA, VHS15M flow switch G: Immersion heater, 1000 W. Installation and operating manual - Sabroe WHC circulation system 011162 en 2021.05 17/17...
Page 18 Johnson Controls Denmark ApS Sabroe Factory Christian X's Vej 201 ∙ 8270 Højbjerg Denmark Phone +45 87 36 70 00 www.sabroe.com Version 4...
Page 19 Quick guide – WHC control box (Carel IR33) Appendix A Quick guide – WHC control box (Carel IR33) Quick guide WHC control box (Carel IR33) Understanding the display Understanding the display Display icons: Display icons: Temperature alarms Temperature alarms: • E05= Low temperature >35°C E05= Low temperature >35°C •...
Page 20 Quick guide – WHC control box (Carel IR33) ng the inputs he current input will be displayed, alternating with the value. (measured temperature) Displaying inputs Press ▼: The current input will be displayed, alternating with the value. 2 (measured temperature) b1: Probe 1 (measured temperature) input 1 (OPn/CLO) b2: Probe 2 (measured temperature)
Page 21 Quick guide – WHC control box (Carel IR33) Setting the parameters. Setting the parameters Parameters are indicated by a code beginning with letters c, d, f followed på two numbers. Parameters are indicated by a code beginning with the letters c, d or f followed by two digits. Quick guide –...
Page 22 Quick guide – WHC control box (Carel IR33) Quick guide – WHC control box (Carel IR33) 00010049 en 2019.05...
Page 23 Quick guide – WHC control box (Carel IR33) Quick guide – WHC control box (Carel IR33) 00010049 en 2019.05...
Page 24 Quick guide – WHC control box (Carel IR33) Parameter list St1=600 (60° setpunkt heat) St2=450 (45° setpunkt valve) P1=20 (2° hysterese heat) P2=20 (2° hysterese valve) c21=400 (Min. temp. St1) c22=750 (Max. temp. St1) c23=400 (Min. temp. St2) c24=800 (Max temp. St2) P25=350(Low temperature alarm E05) P26=850 (High temperature alarm E04) P27=20 (Alarm differential –...
Page 25 Quick guide – WHC control box (Carel IR33) Alarms: Alarm list Table of alarms. Quick guide – WHC control box (Carel IR33) 00010049 en 2019.05...
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Page 50 ...
Page 51 GRUNDFOS INSTRUCTIONS ALPHA2 Installation and operating instructions...
Page 52 English (GB) Installation and operating instructions Original installation and operating instructions 11.6 Performance curves, ALPHA2 XX-80 (N) These installation and operating instructions describe ALPHA2. Disposing of the product Sections 1-4 give the information necessary to be able to unpack, install and start up the product in a safe way. Read this document and the quick guide before Sections 5-12 give important information about the product, as installing the product.
Page 53 1.2 Notes 2. Receiving the product The symbols and notes below may appear in Grundfos 2.1 Inspecting the product installation and operating instructions, safety instructions and Check that the product received is in accordance with the order. service instructions. Check that the voltage and frequency of the product match voltage and frequency of the installation site.
Page 54 3.1 Mechanical installation 3.2 Pump positions 3.1.1 Mounting the product The arrows on the pump housing indicate the flow direction through the pump. See fig. (A). 1. Fit the two gaskets supplied with the pump when you mount the pump in the pipe. See fig. (B).
Page 55 3.3.2 Positioning the control box in air-conditioning and 3.4 Insulating the pump housing cold-water systems Position the control box with the plug pointing downwards. See fig. 4. Fig. 6 Insulating the pump housing You can reduce the heat loss from the pump by insulating the pump housing with the insulating shells supplied with the pump.
Page 56 3.5 Electrical installation Step Action Illustration WARNING Electric shock Death or serious personal injury - Switch off the power supply before starting any Bend the cable work on the product. Make sure that the power with the cable supply cannot be accidentally switched on. conductors pointing upwards.
Page 57 4. Starting up the product 4.3 Venting the pump WARNING Pressurised system Death or serious personal injury - Tighten the bolts before opening the isolating valves. The pumped liquid may be scalding hot and under high pressure. 4.1 Before startup Do not start the pump until the system has been filled with liquid and vented.
Page 58 5. Product introduction 5.1 Product description The pump is designed for circulating liquids in systems with variable flow rates where it is desirable to optimise the setting of the pump duty point to reduce energy costs. The table below shows the ALPHA2 models with built-in functions and features.
Page 59 5.4 Identification 5.4.2 Nameplate 5.4.1 Model type These installation and operating instructions cover ALPHA2 model B, C, D and E. The model type is stated on the packaging and nameplate. See figs and 10. Min. Max. MADE IN DENMARK Fig. 11 Nameplate Pos.
Page 60 5.5 Accessories 5.5.1 Unions and valve kits Product numbers, unions Union nut with internal Union nut with Ball valve with internal Ball valve with Union nut with soldering fitting threads external threads threads compression fitting ∅22 ∅28 ∅18 ∅22 ∅28 ∅42 1 1/4 1 1/4...
Page 61 5.6 Insulating shells, ALPHA2 5.8 ALPHA Reader The pump is supplied with two insulating shells. Type A pumps with air-separating chamber are not supplied with insulating shells. However, you can order insulating shells as an accessory. See table below. The insulation thickness of the insulating shells corresponds to the nominal diameter of the pump.
Page 62 6. Control modes 6.4 Constant curve/constant speed At constant-curve/constant-speed operation, the pump runs at a 6.1 AUTO ADAPT constant speed, independently of the actual flow rate demand in In AUTO mode, the pump is set to proportional-pressure the system. The pump performance follows the selected ADAPT control.
Page 63 6.7 Pump performance If the recommended pump setting does not give the desired distribution of heat in the rooms of the house, change the pump setting to the shown alternative. Relation between pump setting and pump performance. Figure shows the relation between pump setting and pump performance by means of curves. See also section 11.
Page 64 7. Setting the product 7.3 Light fields indicating the pump setting If the pump impeller is rotated, for example when filling the pump WARNING with water, sufficient energy can be generated to light up the Hot surface display even if the power supply has been switched off. Death or serious personal injury The pump has ten performance settings which you can select - The pump housing may be hot due to the pumped...
Page 65 7.4 Button for enabling or disabling of automatic night 7.7 Setting manual summer mode setback Manual summer mode is available as from ALPHA2 model C. The button enables and disables automatic night setback. See In manual summer mode, the pump is stopped to save energy. To fig.
Page 66 7.9 Using ALPHA Reader Fig. 23 ALPHA Reader The ALPHA Reader is compatible as from ALPHA2 model E. A connectivity symbol on the pump indicates compatibility with the ALPHA Reader. See fig. 23. The ALPHA Reader provides safe readout of internal data from the pump to an Android or iOS-based device via Bluetooth.
Page 67 8. Servicing the product 8.2 Dismantling the plug WARNING Step Action Illustration Electric shock Death or serious personal injury - Switch off the power supply before starting any work on the product. Make sure that the power supply cannot be accidentally switched on. Loosen the cable DANGER gland and remove it...
Page 68 9. Fault finding the product DANGER WARNING Electric shock Hot surface Death or serious personal injury Minor or moderate personal injury - Switch off the power supply before starting any - The pump housing may be hot due to the pumped work on the product.
Page 69 10. Technical data Operating conditions Relative humidity Maximum 95 % RH System pressure Maximum 1.0 MPa, 10 bar, 102 m head Liquid temperature Minimum inlet pressure ≤ 75 °C 0.005 MPa, 0.05 bar, 0.5 m head Inlet pressure 90 °C 0.028 MPa, 0.28 bar, 2.8 m head 110 °C 0.108 MPa, 1.08 bar, 10.8 m head...
Page 70 10.1 Dimensions, ALPHA2 XX-40, XX-50, XX-60, XX-80 Dimensional sketches and table of dimensions. Dimensions Pump type ALPHA2 15-40 130 ALPHA2 15-50 130 G 1* ALPHA2 15-60 130 G 1* ALPHA2 15-80 130 ALPHA2 25-40 130 G 1 1/2 ALPHA2 25-40 N 130 G 1 1/2 ALPHA2 25-50 130 G 1 1/2...
Page 71 11. Performance curves 11.1 Guide to performance curves Each pump setting has its own performance curve. However, AUTO covers a performance range. ADAPT A power curve, P1, belongs to each performance curve. The power curve shows the pump power consumption in watt at a given performance curve.
Page 72 11.3 Performance curves, ALPHA2 XX-40 (N) Q [m³/h] Q [m³/h] Setting AUTO 3-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18...
Page 73 11.4 Performance curves, ALPHA2 XX-50 (N) 0.0 0.2 0.4 0.6 0.8 1.0 Q [m³/h] Q [m³/h] 0.0 0.2 0.4 0.6 0.8 1.0 Setting AUTO 3-26 0.04 - 0.24 ADAPT Min. 0.04 Max. 0.24...
Page 74 11.5 Performance curves, ALPHA2 XX-60 (N) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Q [m³/h] 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Q [m³/h] Setting AUTO...
Page 75 11.6 Performance curves, ALPHA2 XX-80 (N) Q [m³/h] Q [m³/h] Setting AUTO 3-50 0.04 - 0.44 ADAPT Min. 0.04 Max. 0.44 12. Disposing of the product This product or parts of it must be disposed of in an environmentally sound way: 1.
Page 77 Argentina Denmark Latvia Slovenia Bombas GRUNDFOS de Argentina S.A. GRUNDFOS DK A/S SIA GRUNDFOS Pumps Latvia GRUNDFOS LJUBLJANA, d.o.o. Ruta Panamericana km. 37.500 Centro Martin Bachs Vej 3 Deglava biznesa centrs Leskoškova 9e, 1122 Ljubljana Industrial Garin DK-8850 Bjerringbro Augusta Deglava ielā 60, LV-1035, Rīga, Phone: +386 (0) 1 568 06 10 1619 Garín Pcia.
Page 78 99462941 0719 ECM: 1261146 www.grundfos.com...
Page 79 Technote Page 1 of 14 Frese SIGMA Compact Appendix D - dynamic balancing valve Description The Frese SIGMA Compact is an externally adjustable dynamic balancing valve that provides simple, accurate and reliable flow limitation and isolation in heating and cooling systems.
Page 80 Technote Page 2 of 14 Frese SIGMA Compact - dynamic balancing valve Function Simplified Outline The Frese SIGMA Compact reacts to pressure fluctuations in a system in order to keep the differential pressure across the pre-set unit constant. By achieving this, a maximum flow limit is ensured in accordance with the design.
Page 81 Technote Page 3 of 14 Frese SIGMA Compact - dynamic balancing valve Verification of Dynamic Systems In general the flow rate in a system can be verified in two ways: Once the differential pressure has been verified, the flow • Direct flow rate verification in a circuit rate can be recorded according to the flow rate graphs •...
Page 82 Technote Page 4 of 14 Frese SIGMA Compact - dynamic balancing valve Application Diagrams Frese SIGMA Compact installed in a circuit with heating or cooling coils The system is easily balanced by adjusting the pump according to the required differential pressure across the valve located at the furthest point from the pump, known as the critical valve (P+ - P-).
Page 83 Technote Page 5 of 14 Frese SIGMA Compact - dynamic balancing valve Technical Data Housing DN15-32: DZR Brass CW602N DN40-50: Ductile Iron GJS-400 Flow setting: PA6 (20% glass) Spring: Stainless steel Diaphragm: HNBR O-rings: EPDM Pressure class: PN25 Max. differential pressure: 400 kPa Temperature range: C to + 120...
Page 84 Technote Page 6 of 14 Frese SIGMA Compact - dynamic balancing valve Frese SIGMA Compact DN15 DN20 DN25 DN32 DN40 DN50 Low 53-2200 Low 53-2202 Low 53-2208 53-2205 53-2206 53-2207 plugs High 53-2201 High 53-2203 High 53-2209 Low 53-2220 Low 53-2222 Low 53-2228 P/T plug + 53-2225...
Page 85 Technote Page 7 of 14 Frese SIGMA Compact - dynamic balancing valve Frese SIGMA Compact DN15 Low Flow Kv (m min. Δp kPa 0.250 13.0 0.222 0.194 11.8 0.167 0.139 10.9 0.111 0.083 10.2 0.056 0.028 10.0 Pre-set Frese SIGMA Compact DN15 High min.
Page 86 Technote Page 8 of 14 Frese SIGMA Compact - dynamic balancing valve Frese SIGMA Compact DN20 Low Flow Kv (m min. Δp kPa 0.444 1600 15.0 0.389 1400 11.9 0.333 1200 0.278 1000 0.222 0.167 0.111 0.056 Pre-set Frese SIGMA Compact DN20 High Flow Kv (m min.
Page 87 Technote Page 9 of 14 Frese SIGMA Compact - dynamic balancing valve Frese SIGMA Compact DN25 Low Flow Kv (m min. Δp kPa 0.556 2000 26.0 0.500 1800 0.444 1600 21.4 0.389 1400 0.333 1200 0.278 12.8 1000 0.222 0.167 10.2 0.111 0.056...
Page 88 Technote Page 10 of 14 Frese SIGMA Compact - dynamic balancing valve Frese SIGMA Compact DN32 Flow Kv (m min. Δp kPa 10.9 1.389 21.0 5000 1.250 4500 1.111 4000 18.6 0.972 3500 0.833 3000 0.694 2500 16.7 0.556 2000 0.417 1500 0.278...
Page 89 Technote Page 11 of 14 Frese SIGMA Compact - dynamic balancing valve Frese SIGMA Compact DN50 Flow Kv (m min. Δp kPa 12.6 16.7 20.3 3.056 11000 26.0 2.778 10000 2.500 9000 2.222 8000 1.944 7000 16.6 1.667 6000 1.389 5000 11.1 1.111...
Page 90 Technote Page 12 of 14 Frese SIGMA Compact - dynamic balancing valve Setting and Flow Frese SIGMA Compact DN15 Low Frese SIGMA Compact DN15 High Frese SIGMA Compact DN20 Low Flow l/h Flow l/s Flow gpm Pre-set Flow l/h Flow l/s Flow gpm Flow l/h Flow l/s...
Page 91 Technote Page 13 of 14 Frese SIGMA Compact - dynamic balancing valve Setting and Flow Frese SIGMA Compact DN20 High Frese SIGMA Compact DN25 Low Frese SIGMA Compact DN25 High Flow l/h Flow l/s Flow gpm Pre-set Flow l/h Flow l/s Flow gpm Flow l/h Flow l/s...
Page 92 Technote Page 14 of 14 Frese SIGMA Compact - dynamic balancing valve Setting and Flow Frese SIGMA Compact DN32 Frese SIGMA Compact DN40 Frese SIGMA Compact DN50 Flow l/h Flow l/s Flow gpm Pre-set Flow l/h Flow l/s Flow gpm Flow l/h Flow l/s Flow gpm...
Page 93 Appendix E Data sheet Assisted lift operated 2/2-way solenoid valves Type EV250B EV250B with assisted lift can operate from zero and up to 10 bar differential pressure. This 2/2-way valve program is especially to use in closed circuits with low differential pressure, but demanding moderate flow rates.
Page 94 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass DZR brass valve body, NC Differential pressure min. to max. [bar] / coil type BB/BE 10W AC BG 12 W AC Connection Seal - value BG 20W DC Media temperature Code ISO228/1 mate rial...
Page 95 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass Technical data, NC and NO Main type EV250B 10BD EV250B 12BD EV250B 18BD EV250B 22BD Time to open [ms] Time to close [ms] The times are indicative and apply to water. The exact times will depend on the pressure conditions. Installation Vertical solenoid system is recommended Max.
Page 96 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass Dimensions and weight: DZR brass, NC and NO Weight gross, [mm] / Coil type valve body without coil Type [kg] [mm] [mm] BB/BE BG/BN [mm] [mm] EV250B 10 52.3 12.5 EV250B 12 52.3 12.5...
Page 97 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass Below coils can be used with EV250B: Coil Power consumption Enclosure Features Type 10 W AC IP00 IP20 with protective cap, BB, clip on 18 W DC with spade connector IP65 with cable plug 10 W AC BE, clip on...
Page 98 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass Universal electronic Voltage To use Ambient Code multi-timer, type ETM Application [V AC] with coil temperature [°C] number External adjustable timing from 1 to 45 minutes with 1 to 15 seconds drain open. With manual override (test button). 24 –...
Page 99 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass Spare parts kit for NC For valve type Seal material Code number EPDM seal material EV250B 10 - 12BD EPDM 032U5315 EV250B 18 - 22BD EPDM 032U5317 The spare parts kit comprises: O-ring for coil 4 screws Complete NC actuator unit with:...
Page 100 Data sheet | Solenoid valves, type EV250B, dezincification resistant brass Function NC Coil voltage disconnected (closed): When the supply voltage to the coil (1) is disconnected, the valve plate (4) is pressed down against the pilot orifice (5) by the closing spring (3).
Page 101 Capacity diagram: Example, water: EV250B 12 at differential pressure of 3 bar: Approx. 7 m3/h © Danfoss | DCS (az) |2017.06 IC.PD.200.H7.02 | 9...
Page 103 Appendix F Operating manual (Translation) Betriebsanleitung ............ Seite 1 - 20 Operating manual ..........page 21 - 40 Notice d'utilisation ..........page 41 - 60 Flow Switches Series VH... / VK... Please keep this operating manual for future reference. If the device is resold, please provide the operating manual along with it.
Page 104 VH... / VK... Table of contents page About this operating manual ..................23 Device description ....................... 24 Intended use ......................24 1.1.1 Flow switch version VH...X ..................25 1.1.2 Reed contact - Switching of inductive or capacitive loads ........25 Exclusion of liability ....................
Page 105 VH... / VK... About this operating manual About this operating manual • The operating manual is aimed at specialists and semi-skilled personnel. • Before each step, read through the relevant advice carefully and keep to the specified order. • Thoroughly read and understand the information in the section "Safety instructions”. If you have any problems or questions, please contact your supplier or contact us directly at: Dr.
Page 106 Device description VH... / VK... Device description SIKA flow switches are designed for minimum or maximum monitoring of liquid flows. Components Flow Switch: Functional principle: The flow switch consists of a paddle system (1) which has a permanent magnet (2) located at its upper end.
Page 107 VH... / VK... Device description 1.1.1 Flow switch version VH...X The Flow switches for application in explosion-hazardous area have an "X” at the end of the article number ( type plate). They have been subjected to an ignition hazard assessment according to DIN EN 13463-1: 2002 and correction 1: 2003 and do not have potential sources of ignition.
Page 108 Safety instructions VH... / VK... Safety instructions Always read these operating instructions carefully prior to installing the VH... / VK..Al- ways adhere to the instructions contained herein, especially the safety instructions, oth- erwise there is a potential risk of personal injury and damage to instruments and plants. Even though SIKA provides assistance through personal consultation or the respective litera- ture, it is the responsibility of the customers to determine the suitability of the product for the specific application.
Page 109 VH... / VK... Material specifications of wetted components If the medium which is to be monitored is very hot, the flow switches or their connection fittings will also become very hot. In this case, neither touch the flow switch nor place any heat-sensitive objects in its vicinity.
Page 110 Flow switch installation VH... / VK... Flow switch installation CAUTION! Material damage! When soldering the copper pipe fitting ( § 4.2) or the threaded nipple ( § 4.3) , the flow switch (body with paddle mechanism) and the O-ring must be dismounted. Over- heating during soldering will damage these components and impair their operation.
Page 111 VH... / VK... Flow switch installation  When installing and before starting-up, it is to be guaranteed that the mechanical pro- cess connections are technically tight.  Always consider the impermeability of the screwing elements for the zone allocation. Depending on the operating conditions, it may be necessary to regularly check the im- permeability of the screwing elements.
Page 112 Flow switch installation VH... / VK...  Carry out installation of your device type as described in the table below. Flow switch type Installation type and instructions V- -01M... Installation with the help of brass (soldering) threaded nipples or stainless steel (welding) threaded nipples including O ring.
Page 113 VH... / VK... Electrical connection Electrical connection 5.1 General electrical connection information DANGER! Risk of death due to electric current! The electrical connection of the VH… / VK… should only be carried out by a fully qualified electrician.  Always de-energize the system before connecting the wires of the mains cable. CAUTION! Destruction or damage of reed contact! The max.
Page 114 Electrical connection VH... / VK... Insert the supply cable through the screwed cable gland , the pressure ring  and  the rubber insert  into the cable socket  ( Fig. 10). Connect the wires as displayed in the connection diagram ( Fig. 13). ...
Page 115 VH... / VK... Adjusting the switching unit 5.4 Fixed connecting cable  Connect the connecting cable according to the connection diagram ( Fig. 15,  Fig. 16): Standard contact: Change-over contact : Flow switch version VH3.../VK3... Flow switch version VH3...X only flow switch version VH3...
Page 116 Adjusting the switching unit VH... / VK... 6.3 Flow switch version VHS... , VKS... und VK3...  In order to adjust the switching unit, open the cover of the switching head ( Fig. 17) (not required for VK3...) hier öffnen hier öffnen to open here to open here...
Page 117 VH... / VK... Maintenance and Cleaning 6.4 Flow switch version VH3...  Loosen the locking screw in order to adjust the Normally open contact (red arrow) switching unit (1.5 mm hexagon socket screw). higher flow  Subsequently position the switching unit until the lower flow red (...
Page 118 Decommissioning and Disposal VH... / VK... Decommissioning and Disposal CAUTION! Risk of injury! Never remove a flow switch or its body from a system under pressure.  Make sure that the plant is shut down professionally. Before disassembly: Prior to disassembly, ensure that ...
Page 119 VH... / VK... Technical data Technical data The technical data of customised versions may differ from these data in the instructions. Please observe the information specified on the type plate. Flow switch version VH... und VK… VHS... VH3... VH3... VKS... VK3...
Page 120 Approvals VH... / VK... 9.1 Maximum flow rate of the flow switch The max. permissible flow rate can deviate from the specified limit values for customised versions. The maximum specifications relate to water as the medium and a continuous flow rate. Flow switch with pipe section Brass/Stainless steel pipe section PVC pipe section...
Page 121 VH... / VK... EC Declaration of Conformity 11 EC Declaration of Conformity Technical changes reserved - 39 -...
Page 122 VH... / VK... Sensors and Measuring Instruments Flow Measuring Instruments Test and Calibration Instruments SIKA Dr. Siebert & Kühn GmbH & Co. KG Struthweg 7–9 D-34260 Kaufungen  Germany  +49 (0)5605 803-0  +49 (0)5605 803-54 info@sika.net  www.sika.net - 40 - ©...
Page 123 Appendix G...
Page 124 ...

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