Nibe ACVM 270, Installation And Maintenance Instructions Manual

Page: 22 / 96

Connecting the hot water heater
The water heater in the ACVM 270 must be supplied with
necessary set of valves.
■
There must be a mixer valve if the temperature exceeds
60 °C.
■
The safety valve must have a maximum 10.0 bar opening
pressure and be installed on the incoming domestic
water line according to outline diagram. The entire
length of the overflow water pipe from the safety valves
must be inclined to prevent water pockets and must also
be frost proof.
■
See section Dockings on page 26 for outline diagram.
Extra water heater with immersion heater
The heat pump should be supplemented with an electric
water heater, if a hot tub or other significant consumer of
hot water is installed.
If the water heater is equipped with a valve connector Ø
15 mm this should be replaced with a corresponding Ø 22
mm.
HW from ACVM 270
Connection of external heat source
An external heat source such as gas or oil boiler can be
connected to (XL8) (in) and (XL9) (out) on ACVM 270 (di-
mension G1 internal). To use these connections, the cor-
responding "Punch-out" parts in the outer panel must be
removed. Also cut off the insulation above the connections.
Also see Installation requirements on page 26.
NOTE
Make connections at a 45° angle.
XL8
XL9
NIBE™ SPLIT ACVM 270 22
For the Installer
Pipe installation