Installation Manual 2013 Riv 2 15
Refrigeration Installation Continued
Please note:
● Refrigerantpipescanbeconnect e d t o e it he r t he t o p o r bo t t o m o ft he uni t .
If using top connections ensure bottom connections are tight and vice-versa.
● Pre‐PressureTestingandCommis s i o nin g , e ns ur e Service valvesa r e o pe n a nd Sc hra d er
valves are fully closed.
Precautions when adding R410A
Be sure to charge the specified amount of refrigerant in liquid state to the liquid pipe.
As R 410A is a mixed refrigerant, adding it in gas form may cause the refrigerant
composition to change, preventing normal operation.
Before charging, check whether the refrigerant cylinder is equipped with a siphon tube or
not (the cylinder should be marked with “liquid filling siphon attached” or something
similar.
Be sure to use tools exclusively for R410A to ensure required pressure resistance and to
prevent foreign materials from mixing into the system.
NB Glasses and Gloves must be worn.
Charge the liquid
refrigerant with the
cylinder in an upright
position
Charge the liquid
refrigerant with the
cylinder in up-side-down
position
To Next Page