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11

8.3.3 Auto reset

The factory setting for this function is "on".

On

This function allows the pump to automatically check if the 
operating conditions are back to normal. If the operating 
conditions are back to normal, the alarm indication will be reset 
automatically.
The auto reset function works in the following way:

For indications, see section 

7.1.2 Indicator lights for SCALA2

.

Off

All alarms must be reset manually by means of the 

 button.

8.3.4 Anti cycling

The factory setting for this function is "off".
This function monitors the starts and stops of the pump.

Off

If the pump starts 40 times in a fixed pattern, there will be an 
alarm. The pump will remain in operation as normal.

On

If the pump starts and stops in a fixed pattern, there is a leakage 
in the system, and the pump will stop and show alarm 3.

8.3.5 Maximum continuous operating time

The factory setting for this function is "off".
This function is a timer that can turn off the pump if it runs 
continuously for 30 minutes.

Off

If the pump exceeds the running time of 30 minutes, the pump will 
run depending on the flow.

On

If the pump exceeds the running time of 30 minutes, the pump will 
stop after 30 minutes of continuous operation, and it will show 
alarm 6. This alarm will always need to be reset manually.

8.4 Resetting to factory settings

The pump can be reset to factory setting by pressing the 

 

buttons simultaneously for 5 seconds.

9. Servicing the product

9.1 Maintaining the product

9.1.1 Insect filter

The pump has an insect filter to prevent insects from nesting in 
the pump.
The filter is placed on the bottom and can easily be removed and 
cleaned with a stiff brush. See fig. 

19

.

Clean the insect filter once a year or as needed.

Fig. 19

Insect filter

9.1.2 Inlet and outlet valves

The pump is maintenance-free, but we recommend that you 
check and clean the inlet and outlet non-return valves once a 
year or as needed.

Fig. 20

SCALA2 pump

To remove the inlet non-return valve, follow the steps below:

1. Turn off the power supply and disconnect the power plug.
2. Shut off the water source.
3. Open a 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. See fig. 

20

 (5).

6. Remove the drain plug and drain the pump. See fig. 

20

 (8).

7. Unscrew the union nut holding the inlet connection. See fig. 

20

 (7). Depending on the installation type, it may be 

necessary to remove the pipes from both the inlet and outlet 
connections.

8. Pull out the inlet connection.
9. Pull out the inlet non-return valve.
10. Clean the non-return valve with warm water and a soft brush.
11. Assemble the components in reverse order.

Indication

Action

Water shortage

The pump will attempt eight restarts at 
five-minute intervals. If not successful, 
this cycle will be repeated after 24 hours.

Dry running (pump 
not primed)

Prime the pump and reset it manually.

All other indications

The pump will attempt three restarts 
within the first 60 seconds, then eight 
restart attempts at five-minute intervals. If 
not successful, this cycle will be repeated 
after 24 hours.

Leakage in the system.

Maximum runtime exceeded.

DANGER
Electric shock

Death or serious personal injury
- Before starting any work on the product, make 

sure that the power supply has been switched off 
and that it cannot be accidentally switched on.

TM

06

 4

537

 25

15

T

M

06

 38

18

 10

15

1

5

6

7

8

2

3

4

9

Содержание SCALA Series

Страница 1: ...SCALA Installation and operating instructions GRUNDFOS INSTRUCTIONS http waterheatertimer org Water heater recirculation system html...

Страница 2: ...9 8 Setting the product 10 8 1 Setting the outlet pressure 10 8 2 Locking and unlocking the operating panel 10 8 3 Expert settings SCALA2 10 8 4 Resetting to factory settings 11 9 Servicing the produ...

Страница 3: ...1 25 bar 18 psi In case of suction lift of more than six metres the pipe resistance on the outlet side must be at least two metres water column or 3 psi at any given flow in order to obtain optimum op...

Страница 4: ...f the flexible hose Fig 4 How to reduce noise in the installation 3 3 5 Installation examples Fittings hoses and valves are not supplied with the pump We recommend to follow the installation examples...

Страница 5: ...ction lift is 8 m 26 ft H2 Inlet pipe must be submersed at least 0 5 m 1 64 ft TM06 4348 4117 Pos Description 1 Highest tapping point 2 Pipe hangers 3 Isolating valve 4 Flexible hoses 5 Drain to sewer...

Страница 6: ...ertain that the pump is connected only to a properly grounded grounding type receptacle protective earthing If national legislation requires a Residual Current Device RCD a Ground Fault Circuit Interr...

Страница 7: ...ent of an internal leakage occurs the liquid will be drained through the bottom of the pump Install the pump in such a way that no undesirable collateral damage can arise 5 Handling and storing the pr...

Страница 8: ...temperature 13 Minimum and maximum rated power 14 Model 15 Voltage and frequency 16 Approvals 17 Minimum and maximum rated current DK 8850 Bjerringbro Denmark SCALA2 3 45 AKCHDE Model A 200 240V 50 60...

Страница 9: ...e cause has disappeared or been remedied See section 8 3 3 Auto reset For further information about system status see section 12 Fault finding the product TM06 3301 5114 SCALA2 Function On off Increas...

Страница 10: ...tpoint The pump will lower the setpoint to either 4 5 3 5 or 2 5 bar 65 51 or 36 psi The self learned setpoint is indicated on the operating panel by one flashing green light After every 24 hours the...

Страница 11: ...bottom and can easily be removed and cleaned with a stiff brush See fig 19 Clean the insect filter once a year or as needed Fig 19 Insect filter 9 1 2 Inlet and outlet valves The pump is maintenance f...

Страница 12: ...uct 4 The pump will remember the controller settings even if it is turned off 10 1 Deblocking the pump The end cover incorporates a plug which can be removed by means of a suitable tool This makes it...

Страница 13: ...reset function in the service menu Grundfos Eye Indication Description No lights are on The power is off The pump is not running Two opposite green indicator lights running in the direction of rotatio...

Страница 14: ...completely or partly open position Clean repair or replace the non return valve See section 9 Servicing the product 2 The pump is running a Leakage from the pipe system or the non return valve is not...

Страница 15: ...ump but it runs only for a few seconds Yes a Dry running or water shortage Check the water source and prime the pump Yes b The inlet pipe is blocked by impurities Clean the inlet pipe Yes c The foot o...

Страница 16: ...ontact the nearest Grundfos company or service workshop See also end of life information on www grundfos com product recycling Temperature C F Maximum ambient temperature 1 x 208 230 V 60 Hz 45 113 1...

Страница 17: ...8 5005 Korea GRUNDFOS Pumps Korea Ltd 6th Floor Aju Building 679 5 Yeoksam dong Kangnam ku 135 916 Seoul Korea Phone 82 2 5317 600 Telefax 82 2 5633 725 Latvia SIA GRUNDFOS Pumps Latvia Deglava biznes...

Страница 18: ...8564 The name Grundfos the Grundfos logo and be think innovate are registered trademarks owned by Grundfos Holding A S or Grundfos A S Denmark All rights reserved worldwide Copyright Grundfos Holding...

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