AHU-KIT
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4.2 EXV Installation
4.2.1 Mechanical Installation
(1) Remove the EXV box cover by unscrewing screws.
(2) Drill 4 holes on correct position (measurements as indicated in figure below) and fix the
valve kit box securely with 4 screws through the provided holes 12mm(1/2 in.).
①
Make sure that the EXV box is installed upwards.
②
Make sure there is enough free space in front and in the side of the box for future maintenance.
4.2.2 Brazing Work
(1) Prepare the inlet/outlet field piping just in front of the connection (do not braze yet).
Fig.4.2.1
A Inlet coming from the outdoor unit
B Outlet to air handling unit
C Wire clamp
(2) Remove the wire clamp (C) by unscrewing 6xM4.2.
(3) Braze the field piping.