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Installation instructions
DHW cylinder for heat pumps
CEW-1-200 / CEW-2-200
SEW-1-300 / SEW-1-400
Solar DHW cylinder
SEM-1W-360
CPM-1-70 buffer module
SPU-1-200 buffer cylinder
WOLF GMBH / POSTFACH 1380 / D-84048 MAINBURG / TEL. +49.0. 87 51 74- 0 / FAX +49.0.87 51 74- 16 00 / www.WOLF.eu
GB
Document no.: 3064300_201703
Subject to technical modifications
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Table of Contents
Related Manuals for Wolf DHW Series
Summary of Contents for Wolf DHW Series
- Page 1 Installation instructions DHW cylinder for heat pumps CEW-1-200 / CEW-2-200 SEW-1-300 / SEW-1-400 Solar DHW cylinder SEM-1W-360 CPM-1-70 buffer module SPU-1-200 buffer cylinder WOLF GMBH / POSTFACH 1380 / D-84048 MAINBURG / TEL. +49.0. 87 51 74- 0 / FAX +49.0.87 51 74- 16 00 / www.WOLF.eu Document no.: 3064300_201703 Subject to technical modifications...
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Page 2: Table Of Contents
Table of contents Contents ..................Page Information, positioning and installation 1. Safety information / standards ................4 2. General information ..................5 3. Technical information .................. 6-7 Product description Hydrotower (CEW-1-200 + CPM-1-70) 4. Appliance description CPM-1-70 / CEW-1-200 ..........8 5. Transport ......................9 6. Minimum clearances CPM-1-70 ..............10 7. Combinations with CEW-1-200 ..............11 8. - Page 3 Pipework connection 24. Pipework connection SEW-1-300/400 SEM-1W-360 ........30 25. Pipework connection CEW-1-200, CEW-2-200 ..........31 26. Pipework connection SPU-1-200 ..............32 Performance curves 27. Performance curves, heat-up times – Wolf 3-way diverter valve ....33 28. Performance curves SEW-1-300 ..............34 29. Performance curves SEW-1-400 ..............35 30. Performance curves SEM-1W-360 ..............36 31. Performance curves CEW-1-200 and CEW-2-200 ........37 32. Performance curves 7m / 8m pumps ............38 33. Configuration example ..................39...
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Page 4: Safety Information / Standards
1. Safety information / standards Safety information The following symbols are used in this description to highlight important information concerning personal safety and operational reliability: Denotes instructions with which you must strictly comply to prevent risk or injury to individuals, faults or damage to the appliance. Denotes danger due to 'live' electrical components. "Note" indicates technical instructions that must be observed to prevent Please note malfunction or appliance damage. Standards Before commissioning the appliance, please read carefully through the following installation and commissioning instructions. This will avoid damage to your system which could arise through incorrect handling. -
Page 5: General Information
55 °C. The ideal operating temperature range is 50 - 55 °C. Heat losses and scaling are significantly reduced in this range. Wolf heat pumps require special DHW cylinders for domestic hot water heating; these are available from the Wolf range of accessories. The cylinders are made of S235JR steel and come with a quality certificate. The indirect coil surface area in the DHW cylinders must be at least 0.25 m² per kW of heating output. -
Page 6: Technical Information
3. Technical information Siting The cylinders may only be installed in rooms which are protected from frost, otherwise the cylinder and all water-carrying fittings and supply pipes must be drained if there is a risk of frost. The formation of ice in the system may result in leaks and could destroy the cylinder. The installation room must provide enough space for maintenance and repair work and the ground must have sufficient load-bearing capacity. Connection to the heating system The cylinder must be equipped with its own safety devices (safety valve, expansion vessel) if it can be shut off from the heating system or if the existing components are not designed for the additional buffer volume. Installing dirt traps or other modifications which constrict the supply line to Please note the safety valve is not permitted. When selecting the installation material for the system, observe engineering standards and any possible electro- technical processes (mixed installation). - Page 7 3. Technical information Expansion vessels All expansion vessels must be fitted so that they can be isolated from the heating system. Shut-off systems must be sufficiently secured against unintentional closing (e.g. by means of a cap valve with wire and seal). Diaphragm expansion vessels must comply with EN 13831. Expansion vessels must be installed in frost-free rooms or protected against freezing. Expansion vessels must be designed to DIN EN 12828.
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Page 8: Appliance Description Cpm-1-70 / Cew-1-200
4. Appliance description CPM-1-70 / CEW-1-200 CPM-1-70 The dimensions and design of the buffer module CPM-1-70 are tailored to the Wolf heat pump range, enabling variable combination. The CPM-1-70 is supplied ready for connection as a separating cylinder or cylinder in series. It is designed to provide optimum evaporator defrosting, in particular for the BWL-1 air/water heat pumps. When connected as a separating cylinder, it also acts as a low loss header. A class A high-efficiency heating circuit pump and three-way diverter valve for DHW heating are already installed inside the casing, including the necessary pipework, ready for connection. Type CPM-1-70/7 with 7m pump and type CPM-1-70/8 with 8m pump. -
Page 9: Transport
5. Transport Transport - The appliance should be transported fully packaged and on a pallet - A sack truck is a suitable for this - Position the sack truck behind the cylinder, secure with a strap and transport to the installation location - Remove strap and packaging - Remove the four fixing screws on the pallet - Lift the cylinder off the pallet - The cylinder should be installed on a level surface which is substantial enough to carry its weight. -
Page 10: Minimum Clearances Cpm-1-70
6. Minimum clearances CPM-1-70 Recommended minimum wall CPM-1-70 and CEW-1-200 are installed against a wall. To allow for fitting the clearances CPM-1-70 connections, ensure a min. clearance of 200 mm from the wall. As their body is round, the SEW-1 and SEM-1W can be rotated, consequently no wall clearance is required. A clearance of 800 mm must be maintained at the front for ease of installation, maintenance and repair. The CPM-1-70 + CEW-1-200 Hydrotower requires a minimum room height of 2.30 m. When installing in combination with heat pumps, the minimum clearances specified for the BWL-1 and BWS-1 must also be observed. Ceiling Wall ≥ 200 mm 182 mm ≥ 0 mm ≥ 0 mm Wall Wall CPM-1 Wall CEW-1 ≥ 800 mm... -
Page 11: Combinations With Cew-1-200
7. Combinations with CEW-1-200 Combination options The combination with Wolf heat pumps provides a variety of space-saving installation options. The Wolf WPM-1 heat pump manager with integral BM programming unit is a required accessory for all heat pumps and cylinders. The cylinder temperature sensor is available as a required control accessory. -
Page 12: Dismantling / Assembling The Cpm-1-70 Casing
8. Dismantling / assembling the CPM-1-70 casing Undo the screws on the front casing and remove the front cover Pull "top" section of casing forwards and remove it 3064300_201703... -
Page 13: Fitting The Cpm-1-70 To The Cew-1-200
9. Fitting the CPM-1-70 to the CEW-1-200 Assembling the Hydrotower The buffer cylinder CPM-1 and DHW cylinder CEW-1-200 are supplied separately and must be assembled on-site. 1. Remove casing cover from DHW cylinder 2. Place buffer cylinder on the mounting bracket of the CEW-1 and align them vertically. 3. Then hook the securing tabs into the back of the casing of the CPM-1-70 and secure in place as illustrated. -
Page 14: Pipework Connection Diagrams For Cpm-1-70 As Cylinder In Series
10. Pipework connections for CPM-1-70 as cylinder in series Pipework connections for the CPM-1-70 as a cylinder in series for air/water heat pump BWL-1, connection type A Heat pump - flow DHW - flow Heat pump - return DHW- return Heating - return Manual air-vent valve Heating circuit pump class A 7m or 8m head 3-way valve 24V AC Heating - flow BDF valve Sensor well Rear view Front view Connection type A applies to the CPM-1-70 as a cylinder in series 3064300_201703... -
Page 15: Pipework Connection Diagrams For Cpm-1-70 As Separating Cylinder
11. Pipework connections for CPM-1-70 as separating cylinder Pipework connections for the CPM-1-70 as a separating cylinder for air/water heat pump BWL-1, connection type B Heat pump - flow DHW - flow Heat pump - return DHW- return Manual air-vent valve Heating circuit pump class A 7m or 8m head Heating - 3-way valve Connection pipe flow 24V AC for heat pump Heating - return return Sensor well BDF valve Rear view Front view Connection type B applies to the CPM-1-70 as a separating cylinder If the CPM-1-70 is used as a separating cylinder, the connection pipe for the heat pump return must be installed on-site. -
Page 16: Appliance Description Cew-2-200
CEW-2-200 CEW-2-200 DHW cylinder with internal indirect coil DHW cylinder Steel cylinder with corrosion protection provided by special enamelled coating on the inner wall of the cylinder, compliant to DIN 4753. Additional corrosion protection provided by sacrificial magnesium anode. Suitable for systems to DIN 1988, EN 12828 and DIN 4753. Dimensions and design are tailored to the Wolf heat pump range, enabling variable combination. The casing is designed for high load-bearing capacity, to allow the indoor module of a BWL-1S split air/water heat pump to be mounted on the CEW-2-200. The DHW cylinder is equipped with a highly efficient bare-tube heat exchanger with indirect dual coil for convenient DHW heating. The PU rigid foam insulation ensures minimum radiation and standby heat losses. -
Page 17: Minimum Clearances For Split Heating Centre
13. M inimum clearances for split heating centre with CEW-2-200 Minimum clearances Split heating centre with CEW-2-200 Overall height with ADG * ≥ 500 ≥ 300 Service clearances 3064300_201703... -
Page 18: Combination Bwl-1S With Cew-2-200
14. Combination BWL-1S with CEW-2-200 BM-2 programming unit serves as remote control BWL-1S indoor module AM display module BWL-1S outdoor modules CEW-2-200 DHW cylinder Split heating centre 3064300_201703... -
Page 19: Connection Cew-2-200
15. Connection CEW-2-200 Split heat pump indoor module – return DHW circulation Cold water Split heat pump indoor module - flow CEW-2-200 3064300_201703... -
Page 20: Installation Bwl-1S(B) On Cew-2-200
16. Installation BWL-1S(B) on CEW-2-200 Installation of indoor module on CEW-2-200 Step 1 Step 2 3064300_201703... - Page 21 16. Installation BWL-1S(B) on CEW-2-200 Installation of connection set Step 3 (accessories) Installation of mounting bracket Step 4 for 25 l expansion vessel (accessories) 3064300_201703...
- Page 22 16. Installation BWL-1S(B) on CEW-2-200 Installation of connection set, Step 5 casing, pipework (accessories) 3064300_201703...
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Page 23: Appliance Description Spu-1-200
17. Appliance description SPU-1-200 SPU-1-200 SPU-1-200 buffer cylinder made from S 235 JR (St 37-2) steel. Foil jacket in Wolf silver, no corrosion protection on interior cylinder wall, as the cylinder is only approved for use in sealed unvented heating systems as a buffer cylinder for process water. Not suitable for drinking water! Please note The SPU-1-200 is designed for combination with an air/water heat pump or a brine/water heat pump. -
Page 24: Appliance Description Sew-1-300/400
Steel cylinder with corrosion protection provided by special enamelled coating on the inner wall of the cylinder, compliant to DIN 4753. Additional corrosion protection provided by sacrificial magnesium anode. DHW cylinder for DHW heating in conjunction with a heat pump. Suitable for systems to DIN 1988, DIN EN 12828 and DIN 4753. The SEW-1-300 is designed for heat pumps with a heating output of up to 14 kW, the SEW-1-400 for a heating output of up to 20 kW and a particularly high DHW demand. Wolf DHW cylinders can be used for all water qualities as defined in the Drinking Water Ordinance [Germany] and in any pipe network. Standard delivery SEW-1-300 / 400 Packaged in film, fully encased, ready for connection, adjustable feet, installed protective anode; installation instructions included. -
Page 25: Appliance Description Sem-1W-360
Suitable for systems to DIN 1988, DIN EN 12828 and DIN 4753. Two highly efficient bare-tube heat exchangers with indirect dual coil for convenient DHW heating with heat pump and additional integration and use of solar energy. The PU rigid foam insulation with foil jacket ensures minimum radiation losses and standby heat losses. Wolf DHW cylinders can be used for all water qualities as defined in the Drinking Water Ordinance [Germany] and in any pipe network. Standard delivery SEM-1W-360 Packaged in film, fully encased, ready for connection, adjustable feet, installed protective anode; installation instructions included. -
Page 26: Specification
20. Specification CPM-1-70/7(8), CEW-1-200 CPM-1-70 CEW-1-200 Specification DHW cylinder Type CEW-1-200 Buffer cylinder Type CPM-1-70/7 CPM-1-70/8 Max. operating pressure Max. operating temperature °C Cylinder capacity Continuous cylinder output kW - l/h 20/490 80/60 °C t 10/45 °C Output factor (heating) NL60 Output factor (heating) NL50 Heat-up time 10 kW 10- 50 °C Draw-off rate, DHW at 40 °C = 55 °C, 15 l/min) Cold water connection... -
Page 27: Specification Cew-2-200
21. Specification CEW-2-200 Specification DHW cylinder Type CEW-2-200 Max. operating pressure Max. operating temperature °C Cylinder capacity Continuous cylinder output kW - l/h 20/490 80/60 °C t 10/45 °C Output factor (heating) NL60 Output factor (heating) NL50 Heat-up time 10 kW 10-50 °C Draw-off rate, DHW at 40 °C = 55 °C, 15 l/min) Cold water connection A mm Service flange B mm Cylinder sensor, heating... -
Page 28: Specification Sew-1, Sem-1
22. Specification SEW-1, SEM-1 Specification SEW-1-300/400 SEM-1W-360 DHW cylinder Type SEW-1-300 SEW-1-400 SEM-1W-360 Cylinder capacity Max. operating pressure (cylinder) Max. operating temperature (cylinder) °C Max. op. pressure (internal indirect coil) bar °C Max. op. temperature (int. indirect coil) Continuous cylinder output kW - 35/860 45/1100 20/490 80/60 °C t 10/45 °C Output factor (heating) NL60 Output factor (heating) NL50 55 / 71* Heat-up time 14 kW ... -
Page 29: Specification Spu-1-200
23. Specification SPU-1-200 SPU-1 Specification Buffer cylinder Type SPU-1-200 Max. operating pressure, secondary Max. operating temperature, °C secondary Cylinder capacity SPU-1 Connection, return A mm Connection, sensor well B mm Connection, heater rod C mm Connection, flow D mm Overall height E mm 1140 Diameter incl. insulation F mm Connection, return G mm Connection, flow H mm Drain outlet I mm Height when tilted... -
Page 30: Pipework Connection Sew-1-300/400 Sem-1W-360
DHW connection Sacrificial magnesium anode SEW-1 Connection, thermometer SEW-1 Heating flow Connection for heater rod (Wolf range of accessories) DHW circulation Cylinder sensor connection Service flange (for heater rod Heating return from Wolf range of accessories) Cold water connection to DIN 1988 Pipework connection diagram SEM-1W-360 Safety assembly Sacrificial magnesium anode DHW connection Thermometer connection Heating flow Cylinder sensor connection... -
Page 31: Pipework Connection Cew-1-200, Cew-2-200
25. Pipework connection CEW-1-200, CEW-2-200 Pipework connection diagram CEW-1-200 Safety assembly DHW connection Sacrificial magnesium anode CEW-1 Heating flow DHW circulation Cylinder sensor connection Service flange (for heater rod from Wolf range of accessories) Heating return Cold water connection to DIN 1988 Pipework connection diagram CEW-2-200 Split heat pump indoor module – return DHW circulation Cold water connection to DIN 1988 Split heat pump indoor module - flow Plan view 3064300_201703... -
Page 32: Pipework Connection Spu-1-200
26. Pipework connection SPU-1-200 Pipework connection diagram SPU-1-200 Heat pump flow Heating flow Heater rod Sensor well / sensor Heat pump return Heating return Drain outlet 3064300_201703... -
Page 33: Performance Curves
27. Performance curves Heat-up times from 10 °C to 50 °C SEW-1-400 SEW-1-300 CEW-1-200 CEW-2-200 SEM-1W-360 Heating output [kW] Pressure drop, Wolf 3-way diverter valve for BWL-1 Heating mode AB - B AB - A Flow rate l/min 3064300_201703... -
Page 34: Performance Curves Sew-1-300
28. Performance curves SEW-1-300 Max. achievable cylinder water temperature in ECO mode 50 l/min 16.7 l/min 36.7 l/min 25 l/min Heating output [kW] Pressure drop, internal indirect coil 10 15 20 25 30 35 40 45 50 55 60 65 70 Flow rate [l/min] 3064300_201703... -
Page 35: Performance Curves Sew-1-400
29. Performance curves SEW-1-400 Max. achievable cylinder water temperature in ECO mode 50 l/min 16.7 l/min 25 l/min 36.7 l/min Heating output [kW] Pressure drop, internal indirect coil 10 15 20 25 30 35 40 45 50 55 60 65 70 Flow rate [l/min] 3064300_201703... -
Page 36: Performance Curves Sem-1W-360
30. Performance curves SEM-1W-360 Max. achievable cylinder water temperature in ECO mode 50 l/min 16.7 l/min 25 l/min 36.7 l/min Heating output [kW] Pressure drop, internal indirect coil Internal Solar indirect coil indirect coil 10 15 20 25 30 35 40 45 50 55 60 65 70 Flow rate [l/min] 3064300_201703... -
Page 37: Performance Curves Cew-1-200 And Cew-2-200
31. Performance curves CEW-1-200 Max. achievable cylinder water temperature in ECO mode 50 l/min 16.7 l/min 36.7 l/min 25 l/min Heating output [kW] Pressure drop, internal indirect coil 10 15 20 25 30 35 40 45 50 55 60 65 70 Flow rate [l/min] 3064300_201703... -
Page 38: Performance Curves 7M / 8M Pumps
32. Performance curves 7m / 8m pumps Pressure differential, 7m pump Flow rate l/min Pressure differential, 8m pump Flow rate l/min 3064300_201703... -
Page 39: Configuration Example
33. Configuration example According to standard calculations, a detached house requires a BWL-1-10 and a 200 l DHW cylinder. The customer requires a DHW temperature of 55 °C at an air inlet temperature of 25 °C without using the heater rod. The purpose of these diagrams is to clarify whether this is possible. 1. Calculating the heating output 26,00 BWL-14 24,00 22,00 20,00 BWL-12 18,00 16,00 BWL-10 14,00 BWL-08 12,00 10,00 8,00 6,00 Winter mode Summer mode 4,00 2,00 2,00 2,00 2,00 0,00 Air inlet temperature [°C] With the estimated air inlet temperature (summer) of 25 °C plotted into the diagram... -
Page 40: Commissioning / Maintenance
34. Commissioning / maintenance Commissioning Installation and commissioning must only be carried out by a recognised installation company. After installation, thoroughly flush the pipes and cylinder, fill the cylinder with water. Open the hot water tap until water flows out and check the safety valve by venting. Before commissioning, the cylinder must be filled and vented. Caution: Do not exceed the maximum operating pressure of 10 bar for DHW cylinders. A buffer cylinder on the heating circuit side may be subjected to a max. pressure of 3 bar. Exceeding the permissible operating pressure may result in leaks and could destroy the cylinder. Frost protection must be guaranteed on site. Frost protection Maintenance The system must be checked by a licensed installer at least Please note every 2 years. If corrosion inhibitors are used in the process water (e.g. in underfloor heating systems where the process water contains oxygen in low concentrations), the corrosion protection must be checked. -
Page 41: Electric Booster Heater
(accessories) Screw the electric booster heater into the 1 ½" socket on cylinder SEW-1 and seal it. If required, the service flange can be replaced by a flange plate with 1 ½" socket (Wolf accessories) and can be additionally equipped with an electric booster heater. For CEW-1-200 and CEW-2-200, a 2 kW/230 V electric booster heater can be installed in the flange plate (accessories). Observe the regulations and requirements of the VDE and those of the local power supply utility. -
Page 42: Troubleshooting - Buffer Module Cpm-1-70, Buffer Cylinder Spu-1-200
36. Troubleshooting – buffer module CPM-1-70, buffer cylinder SPU-1-200 Fault Cause Remedy Leaks Pipe connections leaking Re-seal the connections Heat-up time too long Heating water temperature too low; measure at Increase temperature (adjust controller) cylinder flow, not at heat generator Heating circuit not vented Vent several times (see manual air-vent valve) Cylinder sensor not in sensor well Check position of cylinder sensor No / insufficient Controller for cylinder return temperature control Change parameters (in particular start unloading of cylinder poorly adjusted... -
Page 43: Troubleshooting - Dhw Cylinders Cew-1-200, Sew-1, Sem-1W
37. Troubleshooting – DHW cylinders CEW-1-200, CEW-2-200, SEW-1, SEM-1W Fault Cause Remedy Leak in floor-standing Flange leaking Tighten bolts to a torque of 20-25 Nm, working DHW cylinder diagonally; replace gasket Pipe connections leaking Re-seal the connections Heat-up time too long Heating water temperature too low (measure at Increase temperature (adjust controller) floorstanding cylinder flow, not at heat generator) Heating water volume too low (resulting in a wide Larger pump spread, i.e. return temperature too low) Pay attention to back pressure from parallel heating circuits Internal indirect coil not vented Vent several times with the pump switched off... - Page 44 Wolf GmbH Postfach 1380 / D-84048 Mainburg / Tel. +49.0. 87 51 74- 0 / Fax +49.0.87 51 74- 16 00 www.wolf.eu 3064300_201703 Subject to technical modifications...