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Operating Procedures
Operator Interface
The modular heat pump units, whether they are composed
of a single module 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 5. 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 distributes electricity from the
external building power supply. It also houses a circuit
breaker for each module, a phase monitor, and an optional
main power disconnect switch. See following figure.
ARTC-SVX006A-EN
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