4. Turn the selector
switch for the jockey
pump to “O” position
by means of the key.
Note
.
13. Shut down
3. Turn the selector
switch for the main
pump to “O” position
by means of the key.
5. Turn the main switch to
“O” position.
If pumps are not used during periods of frost, they must be
drained to avoid damage.
Drain the pump by loosing the air vent screw in the pump head
and remove the drain plug from the base.
Do not tighten the air vent screw and replace the drain plug until
the system is to be used again.
20
14. Maintenance
Warning
Maintenance work must be carried out by
authorised personnel.
Only trained personnel are allowed to open the
cabinet door.
Switch off the power supply before carrying out
any maintenance work.
The operator is responsible for ensuring that all
maintenance, inspection and installation work is
performed by qualified personnel. A regular main-
tenance plan will help avoid expensive repairs
and contribute to trouble-free, reliable operation.
14.1 Pumps
Pump bearings and shaft seals are maintenance-free.
Keep motor cooling fins and fan blades clean to ensure sufficient
cooling of the motor and electronics.
14.2 Control cabinet
Warning
Before opening the control cabinet, switch off the
voltage supply via the main switch. Otherwise,
there is a risk of death due to electric shock
The following maintenance work must be carried out regularly:
• Test indicator lights once a week.
• Check wire connections once a year.
To test the indicator lights of the control panel, press
See fig.
10
. If an indicator light fails, please contact Grundfos.
TM05 9219 3513
Fig. 10
Indicator light test
Once a year, check all screw connections to the terminals and all
earth connections to make sure they are tight. Any loose connec-
tions must be tightened. Check the cables for visible damage and
replace, if necessary.
Step Illustration
1. Close the isolating valve on the discharge manifold.
2. Close the isolating valve on the suction manifold.
English
(G
B)
20
13. Shut down
If pumps are not used during periods of frost, they must be
drained to avoid damage.
Drain the pump by loosing the air vent screw in the pump head
and remove the drain plug from the base.
Do not tighten the air vent screw and replace the drain plug until
the system is to be used again.
14. Maintenance
14.1 Pumps
Pump bearings and shaft seals are maintenance-free.
Keep motor cooling fins and fan blades clean to ensure sufficient
cooling of the motor and electronics.
14.2 Control cabinet
The following maintenance work must be carried out regularly:
• Test indicator lights once a week.
• Check wire connections once a year.
To test the indicator lights of the control panel, press
.
See fig.
10
. If an indicator light fails, please contact Grundfos.
Fig. 10 Indicator light test
Once a year, check all screw connections to the terminals and all
earth connections to make sure they are tight. Any loose
connections must be tightened. Check the cables for visible
damage and replace, if necessary.
Step
Illustration
1. Close the isolating valve on the discharge manifold.
2. Close the isolating valve on the suction manifold.
3. Turn the selector
switch for the main
pump to "O" position
by means of the key.
4. Turn the selector
switch for the jockey
pump to "O" position
by means of the key.
5. Turn the main switch to
"O" position.
Warning
Maintenance work must be carried out by
authorised personnel.
Only trained personnel are allowed to open the
cabinet door.
Switch off the power supply before carrying out
any maintenance work.
Note
The operator is responsible for ensuring that all
maintenance, inspection and installation work is
performed by qualified personnel. A regular
maintenance plan will help avoid expensive
repairs and contribute to trouble-free, reliable
operation.
Warning
Before opening the control cabinet, switch off the
voltage supply via the main switch. Otherwise,
there is a risk of death due to electric shock
TM
05
92
19
35
13
