Specifications

12
RG SERIES ENGINEERING GUIDE
The RG Series cont.
Internally Mounted Solenoid Valve Option
When variable speed circulating pump systems are designed, low
pressure drop (high Cv) solenoid valves are specified at each unit
to vary the pump according to flow required. It is important that
these valves be low pressure drop to avoid unwanted pump watts.
This option factory installs this valve inside the unit.
Secondary Drain Connection Option
Some local building authority’s interpretation of codes require more
condensate overflow protection than standard microprocessor
based condensate sensors offer. In these areas a full secondary
drain pan might be required causing both increased cost and
unit service access issues. In many of these cases a secondary
drain connection option can be added to the unit to pass this local
interpretation of condensate drain redundancy. This option adds a
second PVC drain connection to the drain pan at a higher level.
Hot Gas Bypass/Reheat
The hot gas bypass option is designed to limit the minimum
evaporating pressure in the cooling mode to prevent the air coil
from icing. Hot gas reheat option provides consistent comfort by
removing moisture from the air without over cooling the space.
These options are available together or standalone.
Inside the RG Series
Refrigerant
Z products all feature zero ozone depletion and low global warming
potential refrigerant R-410A.
Cabinet
All units are constructed of corrosion resistant galvanized sheet
metal with optional white polyester powder coat paint rated for
more than 1,000 hours of salt spray. One large lift-out access
panel provides access to the compressor and air handler section to
allow servicing of blower motor, blower, and drain pan. Refrigerant
circuit is designed to allow primary serviceability from the front.
Seven (7) horizontal and seven (7) vertical cabinets are provided
for application flexibility. The blower motor and blower can be
completely serviced or replaced without removal of the unit. Service
of the blower and blower motor is made easier via the removable
orifice ring on the housing.
Flexible configurations include four (4) blower deck options for
horizontals and a true left and right return on both horizontal
and vertical.
Filter Rack
All units come standard with an open filter rail, for use in open
return applications, or an optional deluxe filter rack/duct collar for
use with ducted returns. Both filter options are field switchable
between 1 in. [2.54 cm] and 2 in. [5.1 cm] thick filters for filter
Phase Guard Monitor
Factory mounted phase guard device is available to protect the
compressor against loss of phase and reverse rotation.
Electrical Disconnect
An optional factory mounted, internally
wired disconnect is available to avoid
scheduling problems with the electrical
contractor. Other features include:
• Non-fused, ‘dial’ type switch with “on/
off” position
• Compact design
• “Lockout/Tagout” feature to keep the
unit “off” during service
Factory Quality
• All refrigerant brazing is performed in a
nitrogen environment.
• Computer controlled deep vacuum and refrigerant
charging system.
• All joints are leak detected for maximum leak rate of
less than 1/4 oz. per year.
• Computer bar code equipped assembly line ensures all
components are correct.
• All units are computer run-tested with water to verify
both function and performance.