All rights reserved. Subject to modifications Wilo reserves the right to change the above-listed data without prior notice and is not li- able for technical inaccuracies and/or omissions. The figures used may differ from the ori- ginal product and are intended for illustrative purposes only.
Children must be supervised to ensure that they do not play with the device. • If hot or cold components of the product or installation pose a danger, it is the customer’s responsibility to guard them against being touched. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
(humidity, frost etc.). Temperature range for transport and storage: -30 °C to +60 °C. Handle the product with care so as not to damage it prior to installation. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
B = 1~220 V, 60 Hz E = 3~230/400 V, 50 Hz Maximum pressure of the pump in bar Connections T = Screwed P = Victaulic N = With captive nut Data table Maximum utilisation pressure Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
Drainage screw Stage casing Impeller Hydraulic shaft Pump housing Mechanical seal 10. Terminal box 11. Lantern 12. Condensate plugs See Fig. 3a Valve on the suction side Valve on the discharge side Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
In this case, the motor protection class IP55 will no longer be guaranteed. • Note that the altitude of the installation site and the water temperature will reduce the suction capacity of the pump. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
(Fig. 3b). • Air must not be allowed to enter the suction piping while the pump is in operation. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
Filling and deaeration WARNING Risk of infection Our pumps may be factory-tested to verify their hydraulic performance. If some water remains, the pump should be rinsed before use for hygiene reasons. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
The pump must not be operated at a zero flow rate flow (valve on the discharge side closed) for more than 10 minutes. We recommend maintaining a minimum discharge of 15% of rated dis- charge. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
WARNING Risk of burns In case of high water temperatures and high system pressures, close the guard valves upstream and downstream of the pump. First, allow pump to cool down. Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
Suction pipe too narrow Install wider suction pipe The pump discharges irregularly The pressure at the pump inlet is insufficient Review the installation conditions and recom- mendations described in this manual Installation and operating instructions • Wilo-Medana CH1-LSP • Ed.01/08/2023...
If the fault cannot be resolved, please contact the Wilo customer service. Spare parts All spare parts should be ordered directly from the Wilo customer service. To prevent errors, always quote the data on the pump’s rating plate when making an order. The spare parts catalogue is available at www.wilo.com...
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Local contact at www.wilo.com/contact WILO SE Wilopark 1 44263 Dortmund Germany T +49 (0)231 4102-0 T +49 (0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...
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