KAPPA V ECHOS AC IOM.pdf - Industrial Air

10.3.3 Refrigerant charge
- Connect the refrigerant gas cylinder to the male 1/4 SAE charge connector on the liquid line and allow a small
amount of gas to escape in order to purge the connection hose of air.
- The circuit must be charged exclusively with liquid; therefore, if the cylinder is not equipped with a dip pipe it
must be turned upside-down.
10.4 ENVIRONMENTAL CONSIDERATIONS
Units operating with R407C must be charged exclusively with liquid
refrigerant by way of the charge connection on the liquid line.
A unit that was originally factory charged with R407C cannot be
charged with R22 (and vice versa)!
Laws governing the use of substances detrimental to the ozone layer prohibit the dispersal of refrigerant gases in
the environment, obliging users to recover refrigerants at the end of their useful life and consign them to the
dealer or to specific collection centres.
Refrigerant R407C IS mentioned among substances subject to special monitoring regimes established by law, and
as such they are subject to the prescriptions indicated above.
11. TROUBLESHOOTING
Use special care during maintenance work in order to limit the risk of
refrigerant leakage as far as possible.
The following pages contain a list of the most common causes that can result in the shutdown or anomalous
operation of the chiller. Faults are arranged in accordance with easily identifiable symptoms.
In relation to possible corrective action, adopt the maximum attention
in the operations you intend to perform as overconfidence coupled
with insufficient attention due to lack of expertise can lead to serious
accidents. We therefore recommend that Blue Box or other skilled
HVAC engineers are contacted to identify and correct the problem.
Blue Box 52