AAON RZ Series, Installation Operation & Maintenance

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Startup
(See back of the manual for startup form)
During startup, it is necessary to perform
routine checks on the performance of the unit.
This includes checking the air flow, air
filters, condenser water flow, dampers,
heaters, and refrigerant charge.
Filters
Do not operate the unit without filters in
place. Unit must be checked for correct filter
placement during startup. Operation of the
equipment without filters will result in
clogged cooling and heating coils.
Cartridge Filter Installation
Cartridge filters may be held in their proper
orientation and placement with channels,
spring fasteners, or clips.
Figure 19 - Top Clip and Side Spring
Fastener Securing Filters in Place
HEPA Filters
Some draw through units include HEPA
filters in the final filter position. HEPA filters
are a highly effective filter. HEPA filters
require field certification.
HEPA filters can be installed in the same way
as cartridge filters. Place the filter on the
holding frame and then hold the filter in place
by the swing bolt assembly on the sides. If the
unit includes HEPA pre-filters, an adapter
frame is included. The adapter frame holds
the HEPA filters and the swing bolts attach to
the adapter frame.
Metal Mesh Filters
Metal mesh filters are washable expanded
aluminum mesh filters that are mounted over
the outside air intake. These filters are
normally located on the outside air hood.
These filters are commonly used to prevent
moisture carryover from the outside. An
access panel is provided to slide out the filters
for cleaning.
Improper installation, adjustment,
alteration, service or maintenance can
cause property damage, personal
injury or loss of life. Startup and
service must be performed by a
Factory Trained Service Technician.
WARNING
Electric shock hazard. Shut off all
electrical power to the unit to avoid
shock hazard or injury from rotating
parts.
WARNING
Before completing startup and leaving
the unit a complete operating cycle
must be observed to verify that all
components are functioning properly.
CAUTION