Installing The Product; Mechanical Installation; Receiving The Product; Inspecting The Product - Grundfos GT-U+ Montage- Und Betriebsanleitung

1.2 Notes
The symbols and notes below may appear in
Grundfos installation and operating instructions,
safety instructions and service instructions.
Observe these instructions for
explosion-proof products.
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.

2. Receiving the product

2.1 Inspecting the product

On receipt of the product, do the following:
1. Check that the product is as ordered. If the
product is not as ordered, contact Grundfos.
2. Check that no visible parts have been damaged.
If any visible parts have been damaged, contact
the transport company.
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3. Installing the product

3.1 Location
Install the tank in a dry and covered location, where
a leak will not cause water damage. Install the tank
on the outlet side of the pump and as close to the
pump as possible to reduce friction loss.
It must be possible to inspect the tank from all sides.
The gas-filling valve and the nameplate must be
visible.
The tank must not be allowed to rub against any
surrounding walls or hard surfaces.
3.1.1 Thermal expansion tank location
The thermal expansion tank must be installed on the
outlet side of the pump and on the return side of the
water heater.
Install the thermal expansion tank indoors in a
frost-free room.

3.2 Mechanical installation

Installation must be in accordance with
local regulations.
Check the tank nameplate for maximum
operating pressure and temperature
before installing the tank.
The maximum system pressure must be
lower or equal to the maximum operating
pressure for the tank.
The maximum operating pressure must not
be exceeded during normal operation or
during system check.
Install the tank so that it is not stressed by the pipes.
If vibrations are likely to occur, we recommend that
the tank is installed so that vibrations are absorbed.
We recommend to follow these steps, described in
detail below:
1. Lift and position the tank.
2. Level as required.
3. Secure the tank.
4. Connect the pipes, fittings and valves.
5. Check and adjust, if necessary, the precharge
pressure.
No additional loads from the pipe system
or equipment are allowed.
Do not use a tank with signs of damage,
such as dents, leakage or corrosion.