Greenheck ERCH-20 User Manual

Energy Recovery Ventilator

with Integral Water Source Heat Pump

Model ERCH-HP

• Water Source Applications Including Geothermal

• 100% Outdoor Air

• 1,000 to 10,000 cfm

• 4-30 Tons

• Integral Enthalpy Wheel

The model ERCH-HP incorporates an integral water source heat pump to provide a high quality, economical alternative for 100% outdoor air applications traditionally requiring expensive, custom-built equipment. The factory installed heat pump eliminates the cost and liability associated with field piping, charging and wiring. The pre-engineered design means quality and consistency in construction and provides reassurance through single-source responsibility. Energy savings is made possible as the energy recovery wheel saves the owner on initial costs and provides both immediate and annual energy savings. Product sizing and selection is simplified by using Greenheck’s Computer Aided Product Selection (CAPS) tool. CAPS provides fast turnaround for submittals, schedules and Revit files.

Coaxial refrigerant-to-water heat exchanger

Air Side Coils have copper tubes with

permanently expanded aluminum fins. Evaporator coils are mounted above a stainless steel drip pan.

Thermostatic Expansion Valves

provide refrigerant control. Standard hot gas bypass provides control at low-load conditions.

The Compressors are quiet

running, hermetic scroll-type. R-410A refrigerant is used and all modules include first stage bypass with an option for modulating hot gas reheat.

June 2010

Features and Benefits

Standard Feature Benefit

Integral coaxial water-to-refrigerant heatexchanger

Flexibility for use in boiler/tower or

geothermal systems R-410A refrigerant Environmentally friendly Hot gas bypass Capacity control at part load conditions

Refrigerant dryer

Charging ports and serviceable reversing valve

2 stages of capacity control (above 8 tons)

Removes moisture and foreign matter from

the system ensuring long system life

Simplified maintenance

(Lowermaintenancecosts)

Improved controllability for consistent

temperature control

Dimensional Data

Housing

Size

A B C D E

ERCH-20 54.25 108.25 48.75 20.75 17.50 2,150 ERCH-45 64.50 119.25 67.00 19.00 15.75 3,500 ERCH-55 75.25 133.50 68.25 23.75 15.75 4,450 ERCH-90 94.50 151.50 83.75 25.50 15.75 6,200

All dimensions shown are in inches. Actual weight is dependent upon unit configuration.

Approximate

Weight (lbs)

Energy Recovery Wheels certified by the AHRI Air–to-Air Recovery Ventilation Equipment Certification Program.

The ETL Listed Mark is accepted as a product’s mark of compliance to applicable electrical, gas and other safety standards. Intertek is an OSHA recognized NRTL (Nationally Recognized Testing Laboratory) and accredited as a Testing Organization and Certification Body by the Standards Council of Canada.

Greenheck Fan Corporation certifies that the ERCH-HP model shown herein is licensed to bear the AMCA Air Performance seal.

Prepared to Support

Green Building Efforts

Greenheck Fan Corp. • P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • www.greenheck.com