Table of Contents
Advertisement
Air to Water Heat Pump (Split integrated DHW type)
2 .6 .4 Shaping the refrigeration pipes
The refrigeration pipes must be shaped only on a
bending machine or with a bending spring in order to
avoid any risk of crushing or breaking them.
" Warning !
• Remove the insulation material locally to bend the
pipes.
• Do not bend the copper to any angle over 90°.
• Never bend pipes more than 3 times in the same
position otherwise traces of fracturing may appear
(from strain-hardening the metal).
2 .6 .5 Connecting the flared connections
" Connections must be made the day of the filling
the installation with gas (see para.
HP model
Outdoor unit connections
Refrigeration
connections
Hydraulic unit connections
* : without additional charge of R410A.
** : Taking into account the possible additional load of refrigerant R410A (see para.
L
HP
figure 19 - Connecting the flared connections (Pipe diameters and permissible lengths)
- 18 -
2.7, page
19).
Diameter
Minimum length (L)
Maximum length* (L)
Maximum length** (L)
Maxi level difference**(D)
Outdoor unit
HP
Liquid
valve
D
Gas
valve
Flare
" Take particular care positioning the tube
opposite its connector so as not to risk damaging
the threads . A carefully aligned connector can
be fitted easily by hand without much force
being required .
" The refrigeration circuit is very sensitive to dust
and humidity: check that the area around the
connection is clean and dry before removing the
plugs protecting the refrigeration connectors .
- Remove the plugs from the pipes and the refrigeration
connections.
- Present the pipe to the flared connector and screw the
nut by hand while holding the connector with a wrench
until contact.
- Comply with the indicated tightening torques.
High Power single phase & 3-phase
gas
5/8"
(D1) 5/8"
5/8"
Flare nut
Flare
nut
"Liquid" refrigeration connection
Diameter D2
nut
fluid
3/8"
(D2) 3/8"
5
15
20
15
3/8"
2.7.3, page
21).
Hydraulic unit
"Gas" refrigeration connection
Diameter D1
Installation and operating manual "1586 - EN"
Flare nut
Advertisement
Table of Contents
