English (US)
8
5.3 Changing the pump head position
Make any change to the pump head orientation before filling the
system with liquid. You can turn the pump head in steps of 90 °.
• See section
for permissible
positions.
Proceed as follows:
1. If liquid is present, drain the liquid from the pump or isolate
the liquid from the pump.
2. Remove the four socket head cap screws.
3. Turn the pump head to the desired position.
4. Cross-tighten the screws.
5.4 Insulating the pump housing
If the pump is installed in a cabinet or fitted with insulation shells,
the inside air temperature has to be evaluated. If you expect
constant ambient air temperatures higher than 130 °F, please
contact the Grundfos HVAC OEM Division.
5.5 Electrical installation
• The motor is protected by the electronics in the control box
and requires no external motor protection.
• UL-approved UPML and UPMXL circulators are equipped with
a conduit box for easy installation of the power supply cable.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.
WARNING
Pressurized system
Death or serious personal injury
- Before dismantling the pump, drain the system or
close the isolating valve on either side of the pump
before you remove the screws. The pumped liquid
may be scalding hot and under high pressure.
CAUTION
Hot surface
Minor or moderate personal injury
- Position the pump so that persons cannot
accidentally come into contact with hot surfaces.
Do not insulate the control box (especially the heat
sink) in order to allow cooling by the surrounding air.
Do not cover the pump head with diffusion-tight,
cold-water insulation.
Keep the drain holes located in the stator housing
free.
DANGER
Electric shock
Death or serious personal injury
- All electrical work must be carried out by a
qualified electrician in accordance with the latest
edition of the National Electric Code and state,
local codes and regulations.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
- Do not use the pump in swimming pool or marine
areas.
WARNING
Electric shock
Death or serious personal injury
- This pump is supplied with a grounding conductor.
To reduce the risk of electric shock, be certain that
it is connected only to a properly grounded,
grounding-type receptacle in accordance with the
National Electric Code and any state, local
governing codes and regulations.
The pump must not be used with an external speed
control which varies the supply voltage, for example
phase-cut or pulse-cascade control.
Check that the supply voltage and frequency
correspond to the values stated on the pump.
UPMM_UPML_UPMXL_US.book Page 8 Tuesday, February 26, 2019 10:18 PM
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