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EW Series®
Smarter Because ... It Offers Comfort and Versatility with
WaterFurnace Reliability.
Download EW Series
Brochure (PDF)
The Extraordinary EW Hydronic Heat-Pump System
Hydronic heating and cooling systems have long set the industry standard for
comfort and flexibility. Whether the application includes radiant heating,
forced-air fan-coil units, domestic hot-water heating or process heating/cooling
loads, the EW Series can fit every application, from simple to complex.
Sophisticated microprocessor controls and state-of-the-art components ensure
many years of virtually maintenance-free operation. The EW also can supply hot
water for pools, spas and ice-melt under sidewalks.
Because it doesn't burn fossil fuels, the EW Series emits no harmful
greenhouse gases, which are associated with global warming. No flames. No fumes.
No odors. No danger from carbon monoxide. Less dust and better indoor air
quality. The WaterFurnace EW Series is the best in the business.
DESIGN FEATURES/BENEFITS
Operating Efficiencies
- The EW Series uses environmentally responsible R-410A refrigerant.
- An optional desuperheater generates hot water at considerable savings
while improving overall system efficiency.
- A high-stability, bi-directional expansion valve provides superior
performance.
- Efficient scroll compressors operate quietly.
- An oversized coaxial-tube water-to-refrigerant heat exchanger increases
efficiency.
Flexibility
- The EW Series is designed to operate with load temperatures of 30° F to
130° F (30 –100 EST, 50 – 130 ELT).
- Source side-flow rates are as low as 1.5 GPM/ton for well water (50° F
min. EWT).
- Dedicated-heating, dedicated-cooling and heat-pump models are available.
- Modularized unit design and master/slave controls allow optimum
capacity-matching and staging.
- EW Series units are stackable for space conservation.
- Their compact size allows installation in confined spaces.
- Front or rear plumbing connections are provided.
- The Control Panel location is reversible.
Factory Quality
- Heavy-gauge steel cabinets are finished with durable poly paint for long
lasting beauty and service.
- All refrigerant brazing is performed in a nitrogen atmosphere.
- All units are deep-evacuated to less than 150 microns prior to
refrigerant charging.
- All joints are helium leak-tested to ensure an annual leak rate of less
than 1/4 ounce.
- The evaporator heat exchanger, refrigerant suction lines, desuperheater
coil and all water pipes are fully insulated to reduce condensation problems
in low-temperature operation.
- Sound attenuation features include an isolation-mounted compressor and a
high-density, weighted sound blanket.
- Safety features include high- and low-pressure refrigerant controls to
protect the compressor ... and hot-water, high-limit, desuperheater pump
shutdown.
Options & Accessories
- A desuperheater with an externally mounted pump and water heater
plumbing connector.
- A closed-loop, source-side, circulating-pump kit.
- A closed-loop, load-side, circulating-pump kit.
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