INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Page
27
Refrigerant Charge
It may be necessary to add additional charge in some refrigeration systems.
Check the sight glass and, if necessary, add refrigerant to clear the sight glass. Final
charging of the system must be done after the water in the Heat Recovery Water
Heater becomes warm.
Test Run
Turn on the water supply and fill the Model PAC Heat Recovery Water Heater with
water. Unsure that all water and refrigeration connections are leak-free. The unit is then
ready for use. Refrigerant charge should be checked after the system has achieved
normal operation conditions. Be sure to check for proper operation of any and all controls,
valves, etc., installed with or charged during the installation of the Heat Recovery Water
Heater, both in the refrigeration and water systems.
Caution :
When starting to work on the system by adding into the tank then, do not fill more a
solution because it would cause “Over Charge” and the compressor switch will cut off the
system. The air condition system will stop working immediately, It may result to damage to
the air system or compressor.