Sanhua SHF Serie Instructions page 2

4-WAY REVERSING VALVE SERIES SHF Continued
Install the electrical coil on the valve
4
body and use a screwdriver to tighten
the threaded screw to torque rate shown
in Table 1.
Install the valve following the mounting
6
position shown in the picture. Available
to install in any position with the body
axis held horizontally (from 0° to 360° is
possible)
8
Respect the minimum required space for
maintenance above coil
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Table 1
Torque (Nm) Torque (lbf.ft)
3.2 ± 0.8 2.4 ± 0.6
Min. 100 mm
5
Connect the 4-way valve to the refrigerating circuit
respecting the right function of the valve pipes
(like shown in the picture):
1) DISCHARGE CONNECTION
2) CONNECTION TO CONDENSER
3) SUCTION CONNECTION
4) CONNECTION TO EVAPORATOR
(when coil is de-energized)
In vertical position the valve can be installed in any
7
orientation as long as the coil stem position is up
9
Before brazing the valve connection, remove the coil
from the valve body. Braze the four valve connections
using specific alloy (SilFos 15). Use a wet rag on the
valve during the brazing process.
Do not heat up the body to a temperature
higher than 120°C when soldering the joints.
Max. 248ºF (120ºC)
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