Part No. 30911 Rev. A September 2020
- 40 -
Visair Refrigerated Cabinets
Removal and Sealing of Access Ports
VISAIR CABINETS
-
APPENDIX A
R-290 Refrigerant
CAUTION
Do not leave piercing valves on the system.
Procedure
1.
Pinch line off just before the
temporary access port two times
using a crimping tool. Keep
crimping tool in place as shown
in photo.
2.
Verify that there are no leaks.
3.
Remove the piercing
valve/temporary access port.
4.
Snap off at “crimp 1” and check
for leaks.
5.
Braze open end shut while crimping tool is in place.
6.
Leak check the system, with crimping tool removed.
Electrical Repairs
VISAIR CABINETS
-
APPENDIX A
R-290 Refrigerant
CAUTION
The electrical power to the equipment must be disconnected. A combustible-gas
leak detector must be on at all times.
Protect yourself from hazards of working on the electrical components by
following some basic guidelines before you begin the repair. Prior to starting
your repair work on an electrical component, use your combustible gas detector
to see if flammable gas is present.
Only when the area is clear of any flammable gas should you start the repair.
Guidlines
•
Do not use components that produce sparks, discharge, etc.
• Components that could produce a potential ignition source need to be
positioned in an area, distant and unreachable, from any potential
refrigerant leak.
• FPG components are designed for use with flammable refrigerants.
• Do not replace faulty components that are intended not to spark with
components that do. ONLY use FPG recommended spares.
•
• Do not modify components that are intended not to spark in such a way
that they will spark.
