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Operating Procedures
Operator Interface
The modular heat pump systems, whether they are
composed of two modules minimum or up to 10 modules,
are automated systems that use a main electrical panel to
monitor, report, and modify critical system functions.
Heat Pump Power Panels
There are two different electrical panels used in the heat
pump. The main power distribution panel receives power
from the building source and distributes it to individual
modules. The electrical and control panel on each
secondary module receives power from the power
distribution panel that powers the individual electrical
components.
Figure 7. Power distribution panel
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Panel-Mounted Disconnect Switch
Some heat pump systems are optionally equipped with a
panel-mounted disconnect switch installed on the outside
of the power distribution panel (or on each module's
electrical and control panel if the heat pump has power
supplied to each individual module). The disconnect switch
must be turned to the OFF position before the panel can be
opened for service. When the panel door is open, the
power is disengaged.
Power Distribution Panels
The power distribution panel receives power from the
building source and distributes it to individual modules. It
also houses a circuit breaker for each module, a phase
monitor, and an optional main power disconnect switch.
See following figure.
Distribution Panel
ARTC-SVX009A-EN
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