42
As our latest fl agship product, WaterFurnace Envision Series units
have set a new industry standard for effi ciency and performance.
Envision Series units utilize the ozone-safe R-410A refrigerant to
meet the most stringent EPA requirements, effi cient compressors,
quality components, sophisticated controls and many other features
to provide reliable and effi cient operation.
Envision units feature Scroll compressors. Unlike reciprocating
compressors that use a piston, a scroll compressor uses a rotating
spiral inside a stationary spiral. During operation, the rotating spiral
moves in a single direction instead of an in an up-down/start-stop
fashion like a reciprocating compressor. Scroll compressors have
proven to be very dependable, quiet and effi cient. Depending on
the size of your Envision unit, you may have either a single speed
Scroll compressor or a dual capacity Scroll compressor. The dual
capacity Scroll compressor has the ability to operate in either high capacity or low capacity operation using an
additional set of ports. Low capacity operation is approximately 2/3rds of full capacity operation. The thermostat
communicates with the microprocessor control in the unit which determines whether operation is in low or high.
The unit always starts in low. Changing from low to high happens automatically and without any interruption in
operation. Single speed units Envision units are sizes 022, 030, 036, 042, 048, 060 and 070. Dual capacity
Envision units are sizes 026, 038, 049, 064, and 072.
Envision units include variable speed ECM blower motors. Multiple fan speeds can be selected by the dealer to
provide the right amount of airfl ow for your installation. In addition, the ECM motor will automatically speed up or
slow down depending on the mode or stage of operation. The unit has the ability to operate in a special
“dehumidification” mode during cooling. In the event that the desired temperature is reached before adequate
dehumidifi cation is achieved in cooling, you may benefi t from operating in this mode. Contact your dealer if you
experience this condition.
A sophisticated microprocessor control sequences all components during operation for optimum performance with
the ability to signal various fault conditions (see page xx). The microprocessor also provides easy-to-use trouble-
shooting features and on-board diagnostics for your dealer to quickly identify and resolve service issues. Safety
features include high- and low-pressure refrigerant controls to protect the compressor, freeze protection, and fan
start detection. In the unlikely event of a compressor failure, the emergency heat is enabled to satisfy heating
requirements. Another sensor detects if the condensate drain pan is full, at which time the unit will be shut down for
protection against water leaks (see page 34). In units equipped with hot water assist, hot water temperatures are
monitored to ensure that dangerous limits are not reached.
Operation and reliability is further enhanced by a ComfortAlert control module which monitors compressor functions
and assists in troubleshooting.
Product durability features include heavy-gauge metal cabinets which are coated with durable poly paint for long
lasting protection. Envision Series units include coated air coils for long life and corrosion resistance.
These units are performance-certifi ed to ARI ISO 13256-1 standards, are ETL safety listed, and are ENERGY
STAR® qualifi ed.
Envision Series Units
PRODUCT INFORMATION FOR UNITS, OPTIONS & ACCESSORIES
