36
F
E
D
C
Safety assembly supplied
C
Pressure gauge
D
Connection G¾
E
Quick-action air vent valve
F
Safety valve
1.
Connect the secondary lines to the
heat pump:
!
Please note
Ensure hydraulic connections
are tight.
Ensure the diaphragm grom-
mets at the pipe entries are
seated correctly. Seal with
sealing tape if necessary: See
chapter "Assembly and seal-
ing faces to note".
2.
Fit the safety assembly supplied:
Either to an on-site line in the heating
water return or to the secondary cir-
cuit connection set (accessory).
Connection set installation
instructions
3.
Fill and vent the secondary circuit.
4.
Thermally insulate pipes inside the
building.
Note
■ With underfloor heating circuits, install
a temperature limiter to restrict the
maximum temperature in underfloor
heating systems: See chapter "Con-
necting a temperature limiter to restrict
the maximum temperature in under-
floor heating systems".
■ Ensure minimum flow rate is main-
tained, for example by means of an
overflow valve: See "Specification".
■ The secondary circuit must be equip-
ped on site with an expansion vessel.
Installation sequence
Connecting the secondary circuit
(cont.)
5546 699 GB
