6
SS-SVN03B-EN
Line
Connections
Refrigerant Line Connections
Flange thread-type connection:
1. Thread-type connections for series
TTK-5
Do not open liquid or gas line valves
until tube installation and system
evacuation are finished.
Table 01 - Torque
Connection of refrigerant
lines to unit using flange
thread-type service valves
1. Using a tube cutter, cut the
refrigerant tube and remove burrs,
inside and outside (be very carefull
to avoid that burrs fall into the tube).
2. Insulate both refrigerant lines.
3. Remove the service valve falnged
nut and place it in the tube.
WARNING!
!
Liquid line
Suction line
TTK 518E/ 524E / 530E / 536E
TTK 509E/512E
Figure 02 - System detail
Service
access
Register cap
Line connection
(Flange)
Suction line
Liquid line
4. Make the flange of the tube as
perfect as possible.
5. Apply refrigerant oil on coupling
surfaces of the union of the valve
with the flanged tube end before
coupling them.
6. Align the union center formed by the
tube and the valve, lightly screwing
the nut with the hand, by 3 to 5 turns.
7. Tighten the nut according to the
torque table in the next page .
8. Repeat the previous procedure for
other connections.
mm
in.
kgf x cm
lbs x in.
6,35
1/4"
150-200
130-170
9,52
3/8"
350-400
300-340
12,7
1/2"
500-550
430-470
15,88
5/8"
600-650
520-570
19,05
3/4"
700-750
610-650
Piping Diam.
Torque
