Specifications

10
ENVISION COMMERCIAL SPECIFICATION CATALOG
Compressors
High efficiency R-410A rotary or scroll compressors are
used on every model. Rotary or scrolls provide both the
highest efficiency available and great reliability. Both
single speed and dual capacity models are available in
commercial voltages.
Compressor Dual Isolation Mounting
Double isolated compressor mounting utilizing eight
durometer selected rubber grommets and high density
steel. This isolation greatly reduces the primary noise
frequency range of 100-300 Hz.
Air Handler Insulation
Foil Faced air handler insulation provides cleanability to
further enhance IAQ.
Thermostatic Expansion Valve
All Envision models utilize a balanced port bidirectional
thermostatic expansion valve (TXV) for refrigerant
metering. This allows precise refrigerant flow in a wide
range of entering water variation (20 to 120°F [-7 to 49
°C]) found in geothermal systems. The TXV is located in
the compressor compartment for easy access.
Water-to-Refrigerant Coaxial Heat Exchanger Coil
Large oversized coaxial refrigerant to water heat
exchangers provide unparalleled efficiency. The coaxes
are designed for low pressure drop and low flow rates. All
coaxes are pressure rated to 450 psi water side and 600
psi on the refrigerant side. Optional ThermaShield coating
is available on the water-to-refrigerant heat exchanger to
prevent condensation in low temperature loop operation.
Service Connections
and Serviceability
Two Schrader service ports are
provided in every unit. The suction
side and discharge side ports are for
field charging and servicing access. All
valves are 7/16˝ SAE connections. All
water and electrical connections are
made from the front of the unit. Unit is
designed for front access serviceability.
Inside the Envision Series cont.