Grundfos UPS 26-150, Инструкция по установке и эксплуатации

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7
English (US)
5.2 Changing the terminal box position
If the pump is already installed in the system,
the system must be drained or the isolation
valves on both sides of the pump must be closed
and the pressure released/relieved by removing
the vent plug.
Only after the pressure has been relieved and
the pump drained should you proceed with the
next steps.
5.2.1 Rotating the terminal box
To change the position of the terminal box,
follow these steps:
1. Remove the four (5 mm) allen-head screws
holding the pump head onto the pump
housing.
2. Carefully lift/slide the pump head out and
away from the pump housing. Next rotate the
pump head and locate the terminal box in the
desired position. The terminal box can be
rotated in steps of 90 °. Review fig.
1 and
fig. 2 for possible/permissible positions.
DO NOT locate the terminal box beneath the
pump.
3. Make sure the O-ring is properly seated in
the pump housing.
4. Replace the pump head onto the pump
housing.
5. Diagonally tighten the 5 mm allen-head
screws evenly.
Torque to: 7 ft lbs. / 9.5 Nm.
6. Check to ensure the rotor turns freely. Do
this by removing the vent plug in the middle
of the pump nameplate. Insert a
medium-size, flat-blade screwdriver into the
slot at the exposed end of the shaft. Gently
turn the shaft. If it does not turn easily,
repeat steps 1 through 5 above. If the rotor
spins freely, proceed to step 7. Do not put
the vent plug back into the pump until the
end of step 9.
7. The position of the nameplate can be
changed by easing the outer edge of the
plate at the cutout with a screwdriver. Turn
the nameplate to the required position and
push into place.
8. Follow electrical instructions in section
5.3 Electrical connection .
9. Refill the system, open the isolation valves
and vent the system. Also allow air to vent
out of the pump; once water flows out the
vent hole, replace the vent plug removed in
step 6. See additional instructions in section
6.1 Vent the piping system .
10. Figure 2 shows acceptable terminal box
positions along with recommended drip
loops (dashed lines) in the electrical wiring
harness based on entry point.
Fig. 2 Acceptable terminal box positions
Warning
Before starting any work on this
circulator, be sure electrical supply
has been switched off and it cannot
be accidentally switched on.
Warning
Exercise caution when draining the
system or removing the vent plug
as the fluid in the system may be
scalding hot and under pressure.
Caution
Use caution as the rotor assembly
can fall out of the pump head or
pump housing if the pump head is
pulled too far away from the pump
housing.
TM
04 563
6 360
9
Terminal box
position A
Terminal box
position B
Terminal box
position C