Insulating The Pump Housing - Grundfos ALPHA2 Instrucciones De Instalación Y Funcionamiento

4.4 Insulating the pump housing

Fig. 5 Insulating the pump housing
Limit the heat loss from the pump
housing and pipes.
Do not insulate the control box or
cover the control panel.
You can reduce the heat loss from the pump and
pipes by insulating the pump housing and the
pipes. See figures 5 and 6.
• Insulating shells for pumps in heating
systems are supplied with the pump. See fig.
6.
• For pumps in air-conditioning and cooling
systems (down to +14 °F (-10 °C)), it is
required to apply a silicon sealant to the
internal contours of the shell in order to
eliminate any air gaps and prevent
condensation between the insulating shell
and pump housing. Alternatively, you can
insulate the pump manually in accordance
with standard insulating requirements for
heating and cooling systems.
• The fitting of insulating shells will increase
the pump dimensions.
8
Fig. 6 Fitting insulating shells to the pump