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Instruction 

APP pump instruction APP 0.6-1.0, APP 1.5-2.5 and APP 3.0-3.5

8

180R9065  /  521B0733 /  DKCFN.PI.013.C4.2T  /  09.2012

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. 
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

6.1  Periodic maintenance

The APP pump is designed so that lubrication 

follows from the water itself and there is thus no 

oil in the pump.

The pump requires no periodic replacements of 

seals and valve parts.

6.2 Repair

In case of irregular function in the pump, please 

contact the Danfoss Sales Organisation.

6. Service

5.5.2  Open-ended systems with direct water 

supply

1. 

Disconnect the water supply to the pump.

2. 

 Through the lower bleeding plug, empty 

the pump housing of water and close it 

again.

3. 

 Connect the pump to a tank of e.g. 25 litre 

6 gal. of anti-freeze additive. Connect a 

hose to the inlet port of the pump and via 

another hose return the flow from the 

outlet port to the tank with anti-freeze 

additives.

4. 

 Quickly start and stop the pump. Make sure 

that the pump does not run dry. The pump 

is now protected against internal corrosion 

and frost.

Lenntech

[email protected]   Tel. +31-152-610-900
www.lenntech.com   Fax. +31-152-616-289

[email protected]   Tel. +31-152-610-900
www.lenntech.com   Fax. +31-152-616-289

Lenntech

Summary of Contents for APP 0.6

Page 1: ...APP 0 6 1 0 APP 1 5 2 5 and APP 3 0 3 5 MAKING MODERN LIVING POSSIBLE Lenntech info lenntech com Tel 31 152 610 900 www lenntech com Fax 31 152 616 289 info lenntech com Tel 31 152 610 900 www lenntec...

Page 2: ...ines for calculation of pressure losses 4 2 5 General comments on 4 3 Building up the pump unit 5 3 1 Mounting 5 3 2 Direction of rotation 5 3 3 Orientation 6 3 4 Protection from too high pressures 6...

Page 3: ...mp 2 Place the inlet filter before the tank 3 Dimension the inlet line to obtain mini mum pressure loss large flow area minimum pipe length minimum number of bends connections fittings with small pres...

Page 4: ...ng to below guidelines 2 5 General comments on Filtration A good ltration is vital to ensure a long and trouble free life of the pump When selecting a filter or strainer please note that filter materi...

Page 5: ...all to separate the inlet from the outlet end of the tank Monitoring It is recommended to continuously monitor the following conditions Water level in the tank Filter contamination Pressure inlet and...

Page 6: ...close to the pump as possible The opening characteristics of the valve must not result in peak pressures higher than 200 bar 2900 psi The valve outlet must not be connected directly to the pump suctio...

Page 7: ...ssure gauge on the high pressure side 5 3 Dry running When running the pump must always be connected to the water supply in order to avoid damage if it should run dry In systems with water tank it is...

Page 8: ...elf and there is thus no oil in the pump The pump requires no periodic replacements of seals and valve parts 6 2 Repair In case of irregular function in the pump please contact the Danfoss Sales Organ...

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