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Premier and EZ Series splits offer exceptional fl exibility for both replace-
ment and new construction applications. The term “split” refers to the fact
that there are actually two pieces of equipment in the system. The geother-
mal unit (compressor section) is connected to an air handler or fossil fuel
(gas, propane or oil) furnace. This allows the split unit to be located some
distance away from the actual blower section.
The unit will provide all the air conditioning requirements and a portion of
the heating load down to a pre-determined temperature. When connected
to a fossil fuel furnace, the geothermal unit disengages when outdoor
temperatures fall below the changeover point, allowing the fossil furnace
to provide the balance of the heating required. If the split is connected to
a standard air handler, the use of auxiliary electric (back-up heat) may be
needed at outdoor temperatures lower than the changeover point, but the
geothermal unit will continue operating. If the connected air handler or
furnace is equipped with a variable speed blower, you may notice the fan
speed change depending on the mode of operation.
Premier Splits—
All Premier splits feature reliable and effi cient Scroll compressors. With standard electromechani-
cal controls, Premier split units are easy to troubleshoot and repair. Safety devices prevent operation when condi-
tions exist that would damage the unit. If the heating and cooling functions are inoperable, you may be able to reset
the unit by turning off the unit’s breaker for 60 seconds, then turning it back on. If the unit does not operate after
resetting, do not attempt another reset as doing so may damage the unit or components. Contact your dealer for
service. Like our other Premier series products, Premier split units utilize R-22 refrigerant.
EZ Splits—
E Series (EZ) splits include either reciprocating compressors (sizes 024, 030) or Dual Capacity com-
pressors (sizes 036, 048, 060, 072). Dual capacity compressors have the ability to operate in both low and high
stage, depending on the heating and cooling requirements. In the event that the fi rst stage of operation (part capac-
ity) does not satisfy the thermostat, the unit will automatically change to second stage (full capacity) compressor
operation. In order to change from fi rst stage to second stage, units with dual capacity compressors require a brief
OFF cycle. This is normal and will not affect your comfort due to the short changeover time. If the connected air
handler or furnace is equipped with a variable speed blower, you may notice the fan speed change depending on
the mode of operation. A sophisticated microprocessor control sequences all components during operation for opti-
mum performance. This control also facilitates troubleshooting for the service technician. Externally-mounted status
lights indicate to the homeowner or the service technician either normal operation or the nature of a fault. EZ units
utilize R-410A refrigerant.
WaterFurnace splits are performance-certifi ed to ARI ISO 13256-1 standards, are ETL safety listed, and are EN-
ERGY STAR® qualifi ed.
Because split units are used in conjunction with other manufacturer’s air handlers or fossil fuel furnaces, refer to the
documents included with those units for further operating and service information.
Premier and EZ Split Units
PRODUCT INFORMATION FOR UNITS, OPTIONS & ACCESSORIES
