Install Instructions

Range and default values for alternation
Minimum Default Maximum
Resolutio
n
Alternation of starts
and stops
1 1 100 1
Alternation runtime
[h]
0.5 5 100 0.5
11. Service
WARNING
Electric shock
Death or serious personal injury
‐ Switch off the power supply before you start any work
on the product. Make sure that the power supply
cannot be switched on accidentally.
WARNING
Chemical hazard
Death or serious personal injury
‐ Make sure that the product has only been used for
water. If the product has been used for pumping
aggressive liquids, flush the system with clean water
before you start work on the product.
WARNING
Biological hazard
Death or serious personal injury
‐ Make sure that the product has only been used for
water. If the product has been used for pumping
aggressive liquids, flush the system with clean water
before you start work on the product.
WARNING
Pressurised system
Death or serious personal injury
‐ Before dismantling the pump, drain the system or
close the isolating valves on both sides of the pump.
Slowly loosen the drain plug and unpressurise the
system.
CAUTION
Impurities in the water
Minor or moderate personal injury
‐ Before the pump is used for supplying drinking water,
flush the pump thoroughly with clean water.
‐ Use spare parts approved by Grundfos.
Only qualified persons are allowed to service the pump.
11.1 Maintenance
The pump is maintenance-free, but we recommend that you check
and clean the condensation plugs and integrated non-return valve
once per year or as needed.
11.1.1
Cleaning of condensation plugs
1. Remove the condensation plugs carefully with a suitable tool, for
example, a small screwdriver.
2. Rinse the condensation plugs with water.
3. Reinsert the condensation plugs carefully by pressing them in
place with a finger.
Example:
TM075337
Cleaning the condensation plugs
11.1.2 Cleaning of the integrated non-return valve
1. Turn off the power supply and disconnect the power plug.
2. Shut off the water source.
3. Open the tap to release the pressure in the pipe system.
4. Close the isolating valves and/or drain the pipes.
5. Gradually open and remove the priming plug. The plug and non-
return valve are one unit.
6. Clean the integrated non-return valve with warm water and a
soft brush.
7. Assemble the components in reverse order.
Example:
TM075336
Integrated non-return valve
11.2 Customer service information
For further information on service parts, see Grundfos Product
Center on www.product-selection.grundfos.com.
11.3
Service kits
For further information on service kits, see Grundfos Product Center
at www.product-selection.grundfos.com.
12. Starting up after standstill
WARNING
Electric shock
Death or serious personal injury
‐ Switch off the power supply before you start any work
on the product. Make sure that the power supply
cannot be switched on accidentally.
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English (GB)