13.0
Changing Components
31
The Pump, interface PCB, pressure gauge
and pressure relief valve can be accessed
after hinging down the facia box.
1. Release the facia securing screws (
1
/
4
turn)
and hinge down the facia box.
13.7
Pump
(Fig. 49)
1. If only the head needs replacing. A standard
Grundfos UPS 15-60 pump head is
interchangeable (see section 13.13 for details).
2. This must be switched to setting N
o
3 (Fig. 50).
13.8
Pump (Complete)
(Fig. 51)
1. Drain the boiler
(see Section 13.1 paragraph 2 & 3).
2. Unplug the wiring harness from the pump.
3. Remove the four screws retaining the pump
backplate to the hydraulic manifold.
4. Remove the pump.
5. Fit the new pump and reassemble in reverse
order.
13.9
Pump (Head Only)
(Fig. 52)
1. Drain the boiler
(see Section 13.1 paragraph 2 & 3).
2. Unplug the wiring harness from the pump.
3. Remove the four socket head screws securing
the pump head and separate it from the housing.
4. Remove the screws retaining the pump
electrical covers on the original and replacement
heads.
5. From the replacement UPS 15-60 pump head
remove the strain relief cable gland and discard.
6. Remove the plug connector from the old pump
head and wire it into the UPS 15-60 pump head.
7. Replace the electrical cover to the new pump
head and assemble with the electrical box at
6 o’clock to the housing.
8. Check that the pump has been switched to
setting N
o
3 (Fig. 50) and reconnect the wiring
harness plug.
Pump Setting
Fig. 49
Fig. 51
Fig. 52
Fig. 50
Facia Box
Facia Securing
Screws
