Connecting The Refrigerant Piping - EAS ELECTRIC M-THERMAL 2 R32 BIBLOCK ETHKH100A190 Guide D'utilisation

Fig.4-3

5. CONNECTING THE REFRIGERANT PIPING

For all guidelines, instructions and specifications regarding refrigerant pipe between the indoor unit and outdoor
unit, please refer to "Installation and owner's manual (M-thermal split outdoor unit)" Connecting the 16mm
refrigerant pipe to the refrigerant gas connection.
Sufficiently tighten the flare nut
Check the tightening torque（Refer to the right table）.
ighten it with a spanner and torque wrench (Refer to
Fig.5-4) The protective nut is a one-time part, it can not
be reused. In case it is removed,it should be replaced
with a new one.(Refer to Fig. - )
When connecting the refrigerant pipes, always use two wrenches/spanners to tighten or loosen the nuts (Refer
to Fig.5-4). Otherwise, it will cause damage of piping connections and leakage.
If the indoor unit is matched with outdoor unit (4/6kW), the transfer 9.52-6.35 (refer to the table in page 8)
should be mounted on the refrigerant liquid connection of indoor unit (refer to Fig.5-2). The transfer is not used
in other types of outdoor unit (8/10/12/14/16kW).
b
a
Fig.5-1
a Refrigerant liquid connection
b Refrigerant gas connection
（Refer to Fig.5-3 ）
CAUTION
b
a
Fig.5-2
Fig.5-4
13
﹤
Fig.4-4
Outer Tightening Additional tightening
diam. torque (N.cm) torque (N.cm)
1500
6.35
(153kgf.cm)
2500
9.52
(255kgf.cm)
4500
16
(459kgf.cm)
Indoor unit Flare nut
tubing
Fig.5-3
Protective nut
Fig.5-5
1600
(163kgf.cm)
2600
(265kgf.cm)
4700
(479kgf.cm)
Pipings
V.2