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11.0 Changing Components
42
11.15
Pump (Head Only)
(Fig. 128)
1. If only the head needs replacing. A standard
Grundfos UPS 15-60 pump head is
interchangeable.
2. Isolate the appliance from the water system by
closing the flow and return taps.
3. Drain the boiler of water.
4. Undo the
1
/
4
turn screws and drop the facia
panel down.
5. Unplug the wiring harness from the pump.
6. Remove the four socket head screws securing
the pump head and separate it from the housing.
7. Check that the new pump has been switched to
setting N
o
3.
8. Remove the screws retaining the pump
electrical covers on the original and replacement
heads.
9. From the replacement UPS 15-60 pump head
remove the strain relief cable gland and discard.
10. Remove the plug connector from the old pump
head and wire it into the UPS 15-60 pump head.
11. Replace the electrical cover to the new pump
head and assemble with the electrical box at
6 o
’
clock to the housing.
12. Reconnect the wiring harness plug
13. Repressurise and recommission the system.
11.16
Pump (Complete)
(Fig. 125 & 127)
1. Isolate the appliance from the water system by
closing the flow and return taps.
2. Drain the boiler of water.
3. Undo the
1
/
4
turn screws and drop the facia
panel down.
4. Unplug the wiring harness from the pump.
5. Remove the four screws retaining the pump
backplate to the hydraulic manifold.
6. Remove the pump.
7. Fit the new pump and reassemble in reverse
order.
8. Repressurise and recommission the system.
Pump Setting
Fig. 125
Fig. 127
Fig. 128
Fig. 126
Facia Panel
Facia Securing
Screws
Fig. 124
