Control Box Positions; Preventing The Pump From Blocking; Insulation - Grundfos UPM3 Installation And Operating Instructions Manual

4.1 Control box positions

The control box gives access to the terminals from the front. If
necessary, you can turn the control box in steps of 90 degrees:
• 3 o'clock
• 6 o'clock
• 9 o'clock
• 12 o'clock
By default, the operating panel is in the top position (12 o'clock)
when the terminals are in 9 o'clock position. The front foil can be
placed in four different positions. This allows you to place it in a
horizontal position no matter the orientation of the control box.
Observe the following:
• IP44 versions without drain holes - all positions are allowed.
• IPX4D versions with drain holes (UPM3K, UPM3 SOLAR) - the
drain hole must point downwards after installation. Only
connector positions to the side are possible.
IP44
IPX4D
4.1.1 Changing the control box position
1. Close the isolating valves.
2. Remove the screws that keep the pump head in place.
3. Turn the control box into the desired position, and fit the screws.
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4. Tighten the new screws securely.
5. Open the isolating valves, and check tightness.
The nameplate position cannot be changed.
Before dismantling the pump, drain the system or close
the isolating valves on either side of the pump.

4.2 Preventing the pump from blocking

To prevent the pump from blocking, do the following:
1. Once installation is complete, the pump must run for two hours
to vent the system.
2. Make sure that the pump runs for a period of time every day.

4.3 Insulation

When insulating the pump, the front plate of the control box must
not be covered in order to allow for cooling by the surrounding air.
If the pump is installed inside a cabinet, a boiler or a heating kit
encapsulated with insulation shells, the inside air temperature has
to be measured and it must not exceed 70 °C during operation.
Insulation of a pump