Power Panel (19Xr2-E); Power Panel (19Xr6/7); Economizer (If Available); Free-Standing/Factory-Mounted Starter Or Vfd - Carrier AquaEdge 19XR Start-Up, Operation And Maintenance Instructions Manual

Power Panel (19XR2-E)

The power panel contains oil heater and oil pump contactors,
as well as the envelope control/HGBP relay if specified. The
power panel also contains transformers T1/T2 for 24 VAC con-
trol power, as well as the low voltage starter interlock and com-
munication terminals.

Power Panel (19XR6/7)

The control panel contains both power components for heaters, oil
pump and electrical actuators as well as low voltage control com-
ponents. They are separated by a barrier.

Economizer (if available)

This chamber reduces the refrigerant pressure to an intermedi-
ate level between the cooler and condenser vessels. In the
economizer, vapor is separated from liquid, the separated vapor
flows to the second stage of the compressor, and the liquid
flows into the cooler. The energy removed from the vaporized
refrigerant in the economizer allows the liquid refrigerant in
the cooler to absorb more heat when it evaporates and benefits
the overall cooling efficiency cycle.

Free-Standing/Factory-Mounted Starter or VFD

The starter or VFD allows for the proper start and disconnect
of electrical energy for the compressor-motor, oil pump, oil
heater, and control panel.

Storage Vessel (Optional)

There are 2 sizes of storage vessels available. The vessels have
double relief valves, a magnetically-coupled dial-type refriger-
ant level gage, a 1 in. FPT drain valve, and a
vapor connection for the pumpout unit.
NOTE: If a storage vessel is not used at the jobsite, factory in-
stalled isolation valves on the chiller may be used to isolate the
chiller charge in either the cooler or condenser. An optional
pumpout system is used to transfer refrigerant from vessel to
vessel.
5
/ -in. male flare
1
2