The 50VQP AQUAZONE water source heat pump is a large capacity, indoor, constant volume water-cooled pump featuring the Puron Refrigerant (R-410A). It is made to be installed vertically, has a multitude of airflow configurations and holds from 7 to 25 nominal tons.
Performance Attributes
This pump includes performance features such as computer selected vibration isolators, dual refrigerant circuits, high efficiency, scroll compressors and belt driven centrifugal blowers. The unit is fully insulated with acoustic type insulation, has a large cabinet and is thermostatic expansion valve controlled. It exceeds ASHRAE 90.1 performance requirements and is both Energy Star and ARI/ISO 13256-1 certified.
It is equipped with a performance monitor that ensures efficient heat pump operation, has a complete C control system (on the standard model) as well as a water loop (boiler/tower and ground loop/water) application use with an operating temperature range of 20 to 110 F. Capacity increments for the pump are 7, 8, 10, 12½, 14, 16, 20, and 25 tons and its energy efficient ratio goes up to 21.4.
Installation Attributes
All units can be mounted in attics, ceilings, closets, etc., have a single point electrical and ducted or free return connection. Units are pre-wired and factory charged with the Puron refrigerant and has an internally trapped condensate drain with water and condensate connections that are secured to the cabinet and are FPT. The electrical box can be flipped to the opposite side without any rewiring being necessary, while supply air configuration can be field converted without the use of any new belts or panels. Installation features field convertible discharge as well as condensate and supply/return connections which can also be on either side of unit.
Factory Installed Options
A variety of factory installed options is available including filter racks, low, standard or high static blower motor drives, e-coated coils and internal water valves. Also, features such as WSHP open, LONMark compliant and PremierLink controllers or a Deluxe D control system can be installed. Extended range units, mute packages and copper or cupronickel heat exchangers may also be added.
Field Installed Options
The field installed possibilities are remote sensors, filter racks, fire-related hoses and hose kit assemblies. Ball valves, solenoid valves, Y strainers and two-way motorized control valves are possibilities. Field installation products may include PremierLink accessories, AQUAZONE thermostats, non-programmable thermostats, loop controllers and electric duct heaters.
Reliability
The pumps have numerous reliability traits such as coated and insulated stainless steel condensate pan, galvanized steel construction and computer selected isolation springs. They also feature microprocessor control with DDC (Direct Digital Controls) options and a standard reversing valve (4-way: water-to-refrigerant coaxial coil, and enhanced aluminum fin/rifled copper tube air-to-refrigerant) heat exchanger.
All units are ETL certified, shipped with a “report card” validating testing and proper operation and have eight standard safeties including, air coil freeze protection, anti-short cycle, random start delay, condensate overflow sensor, high/low refrigerant pressure protection, automatic intelligent reset, high/low voltage protection and water coil freeze protection.
Maintenance
All maintenance may be done through large, removable front and side panels with compressor access available through 3 service panels. The control box is easily removable, components have quick electrical disconnects, blower housing is serviceable without disconnecting ductwork and there are no tools required to change filters. The unit has permanently lubricated bearings, the refrigerant circuit is equipped with high/low pressure ports and the filter and filter racks are standard, 1-inch.
Filter racks are available in 1, 2 or 4-inch filters with the factory-installed option or field-installed accessories. Proactive maintenance accompanies the use of the WSHP Open controller from the factory-installed option.
Warranty Options
The standard, limited warranty for this pump is a 5 year, parts only warranty on the compressor and a 1 year, parts only warranty on all other parts. Extended warranty packages are available to purchase.
Pricing
Due to the wide variety of options regarding systems, sizes, residential or commercial use the pricing on these units differs. Companies carrying these geothermal products need individualized information from the consumer before they can issue a quote on how much a unit will cost. Most companies seem to offer, especially for commercial use, the leasing or renting as well as financing options to their customers.
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