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Summary of Contents for Cosmo CFWMEXL
- Page 1 INSTALLATION AND OPERATING MANUAL COSMO FRESH WATER MODUL CFWMEXL / CFWMVEEXL...
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Page 2: Table Of Contents
Temperature sensor / Flow sensor ..............19 Decommissioning ................... 20 Maintenance ...................... 21 Cleaning the heat exchanger ................21 10 Replacement parts / accessories ..............21 11 COSMO hotline ....................22 12 EU Declaration of Conformity ................22 13 Warranty, availability guarantee, imprint ............23... -
Page 3: Scope Of Delivery
S c o p e o f d e l i v e r y Pos. Bezeichnung Ball valve for heating flow (HVL) Circulation pump Safety valve Ball valve for heating return (HRL) Front: temperature sensor (HW) Back: temperature sensor (HVL) Shut-off valve for hot water (WW) Flush valve/drain (WW) Control unit... -
Page 4: Delivery And Transport
1.1 Delivery and transport Check to make sure the product is complete and undamaged immediately after receipt. Any damage or complaints must be reported immediately. Observe the labels on the packaging without fail! The fresh water modul should only be removed from its packaging at the place of installation. -
Page 5: Safety
S a f e t y 3.1 Safety instructions In addition to country-specific guidelines and local directives, the following technical regulations must also be taken into account: Important - risk of burning! As the system can reach temperatures > 60 °C, there is a risk of scalding and burning through contact with the components. -
Page 6: General Information Regarding The Installation And Operating Manual
This manual describes the installation, operation and maintenance of the CFWMEXL/CFWMVEEXL fresh water modul. This manual is intended for trained specialists with an adequate level of expertise in handling heating systems, water pipe installations and electrical installations. -
Page 7: Product Description
PWM signal. The CFWMEXL CFWMEXL/CFWMVEEXL fresh water module should only be used to heat drinking water in accordance with the Drinking Water Ordinance. The primary circuit must be filled with heating water according to VDI 2035. -
Page 8: Technical Specifications
3,5 l/min – 50 l/min Electrical connection (mains 230 V AC/ 50-60 Hz control unit) Materials Housing/connecting components CW617N (2.0402) Plate heat exchanger CFWMEXL Stainless steel, Cu soldered Plate heat exchanger Stainless steel, stainless CFWMVEEXL steel soldered Seals Insulation EPP foam 0.038 W/mK... -
Page 9: Dimensions / Required Space
6.2 Dimensions / required space Dimensions and minimum space required for assembly and maintenance work Optional accessories shut-off valvel (CFWMEKWAVXL): Execute the HW connection according to DIN 1988. Optional accessories Cascade valve (CW) + actuator (CFWMEKWAVSAXL): Execute the HW connection according to DIN 1988. -
Page 10: Corrosion Protection
6.4 Corrosion protection To prevent corrosion damage to plate heat exchangers, the following drinking water values must be observed: Copper-soldered Solid stainless steel Chloride (CL < 250 mg/l at 50°C < 100 mg/l at 75°C < 10 mg/l at 90°C Sulphate <... -
Page 11: Calcification Protection
6.5 Calcification protection Limescale deposits from the water increase significantly at temperatures >55°C and a water hardness level over 8.5°dH. Because of that the hot water temperature should be set as low as possible taking the drinking water hygiene into account. If necessary reduce calcification by using water softeners or different suitable method. -
Page 12: Assembly And Installation
A s s e m b l y a n d i n s t a l l a t i o n 7.1 Valve assembly 7.1.1 Shut-off valve (CW) 7.1.2 Cascade valve (CW) -
Page 13: Wall-Mounted Assembly
7.2 Wall-mounted assembly 7.2.1 Dimensions Mark the drilling dimensions as per the drawing and drill with 10 mm. Insert the rawl plugs. Tighten the two top screws. Tighten to a clearance of 3 mm between the screw head and the wall. Attach the station to the screws using the upper retaining lugs. -
Page 14: Hydraulic Connection With Accessories
(storage tank center & storage tank return) Note: When installing Cosmo fresh water modules in accordance with DIN1988- 200, a cold water expansion vessel (minimum water hammer damper) must be installed in addition to a safety valve in order to avoid pressure surges in the stations. - Page 15 Electrical connection for cascade valve Connection cascade valve in the controller NOTE: Connect the continuous phase of the string valve with the voltage supply of the controller to L. Connect the switching phase of the string valve to R3. Electrical connection for return stratification Connection return stratification in the controller...
- Page 16 Optional circulation set Description: The CFWMEZS circulation set is an optional accessory for the CFWMEXL system. The set consists of the circulation pump, 2 shut-off ball valves with a backflow preventer and a thermowell with PT1000 sensor. A temperature sensor is always required for all circulation methods.
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Page 17: Electrical Connection
Protect the control unit and electrical components against excess voltage. The fresh water modul CFWMEXL / CFWMVEEXL is pre-installed and wired ex works. Connect the power cable to commission. Please refer to the separate control unit instructions for more details. -
Page 18: Commissioning, Functional Test, Decommissioning
C o m m i s s i o n i n g , f u n c t i o n a l t e s t , D e c o m m i s s i o n i n g Complete installation of all hydraulic and electrical components is a precondition for commissioning. -
Page 19: Troubleshooting
8.2 Troubleshooting If an error message is output, it appears on the control unit display. Please observe the corresponding instructions for the control unit. Malfunction Possible cause Remedy Pump noise Air in the system Vent Insufficient tapping quantity Insufficient water pressure Check pressure, increase if necessary Calcification in heat exchanger... -
Page 20: Decommissioning
If the CFWMEXL / CFWMVEEXL is decommissioned for a prolonged period, the power supply must be disconnected. For final decommissioning of the CFWMEXL / CFWMVEEXL the power supply for all of the corresponding system components must be disconnected; all of the relevant pipes and components must be completely drained. -
Page 21: Maintenance
Cosmo ET Bezeichnung Number YCO1301588 Primary pump Wilo Para 15/8 iPWM2 130.15.88.00.18 YCO9076505 Plate heat exchanger CFWMEXL 907.65.05.00.18 YCO9077005 Plate heat exchanger CFWMVEEXL 907.70.05.00.18 YCO9076604 Fresh water controller incl. wiring harness 907.66.04.18.18 YCO0900519 Fresh water-, storage tank sensor Pt1000, G1/2“... -
Page 22: Cosmo Hotline
E U D e c l a r a t i o n o f C o n f o r m i t y For the following product: Device: Fresh water module CFWMEXL/CFWMVEEXL Type: We hereby declare that the design and construction of the products designated below, as well as the version we have introduced, comply with the relevant basic health and safety requirements of the EU Directive –... -
Page 23: Warranty, Availability Guarantee, Imprint
Claims relating to the model and product cannot be asserted. Within the framework of the current legal provisions of the Purchase Contract Law (BGB [Civil Code] with respect to warranty claims), COSMO has a limitation period of 5 years from the date of delivery. - Page 24 907.66.02.18...
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