SERVICE CONNECTIONS
Do not open electrical panel enclosures, panel components, pressure
switch covers, motor terminal box covers or any other electrical protective
covering without first ensuring that the electrical supply is suitably isolated
and cannot be switched on.
Do not attempt to supply electricity to the control panel and run the pump
electric motors without ensuring that all electrical fittings, cables and
enclosures are intact and suitably electrically isolated from human touch
during operation.
REMOVAL OF CABINET COVERS
The
top
and
the
front
covers
can
be
removed
from
the
IMpress
cabinets
to
allow
access for making electrical and pipe work connections.
Remove the four screws from the top cover, and remove the cover/lid.
Remove the two screws on the front panel. Remove the front panel by lifting it off the
locating pins in the base.
PIPEWORK CONNECTIONS
The service connections to the pressurisation unit should be made as follows.
1. Connect the mains cold water supply to the ball valve ½" BSP male connection on
the side of the pressurisation unit.
2. An isolating valve must be fitted to the mains cold water supply pipework supplying
the pressurisation unit.
3. Connect the discharge pipe (15mm compression) from the pressurisation unit to
an appropriate position on the heating/chilled water system.
4. Connect the over flow pipe (¾" bsp male) from the pressurisation unit break tank
to a suitable drain.
5. The electrical supply connections to the pressurisation unit should be made in
accordance with the wiring diagrams supplied with the unit.
6. If applicable, connect the freestanding expansion tank(s) to the heating/chilled
water system.
7. Ensure the pressurisation unit is not stressed by the pipework connections and
that the pipework is properly supported.
