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Commercial Steam Fired Water Heater (B+II)
The AERCO B+II WaterWizard high-efficiency heater is designed to satisfy potable water heating needs in commercial and institutional environments. The packaged, steam fired system incorporates real-time load tracking, and responsive controls to maintain accurate hot water temperatures under diversified loads. AERCO's unique sub-cooling heat exchanger design increases operating efficiency to deliver more usable heat per pound of steam input than other heaters. As added benefit, this unique design simplifies maintenance and promotes long life.
A parallel stack of helically wound coils, including a dedicated sub-cooling coil, form a cross counter-flow heat exchanger - one of the most efficient designs available for domestic water heating. This design eliminates wasteful flash losses because all of the heat of condensation, and much of the heat of the liquid, is transferred from the steam. In most domestic applications, condensate outlet temperatures of less than/equal to 160 degrees F can be expected. Plus, a simple union orifice eliminates the need for a trap.
The baffle-free, flexible coils of the heat exchanger continuously expand and contract with changing water and steam temperatures. The self-descaling nature of this automatic action eliminates the need for periodic, acid cleaning or tube scraping. The free floating design eliminates stress so effectively - where water conditions are especially harsh, the B+II can be quickly and easily "thermal shocked" as part of a routine maintenance plan. All water wetted parts are copper or copper alloy materials - the best choice of materials to further ensure longevity.
FEATURES:
| Accurate Temperature Control +/- 4 deg. F |
10-Year Warranty on Complete HX* |
| Choice of Electronic or Pneumatic Controls |
20-Year Warranty on Pressure Vessel and Integral Demand Anticipator* |
| Compact Foot Print < 4 ft2 |
Supports a Variety of Applications |
| Automatic Self-Descaling |
-5 to 150 PSIG Steam Supply |
| Automatic Condensate Subcooling |
-Intermittent Water Flow Rates up to 250 GPM |
| ASME - B&PV Code Sec. VIII, Div. 1 Stamped |
-Set Point Range 50-205 deg. F |
| Fully Modulating Variable Steam Input |
-235 PSIG ASME Working Pressure Certified |
| No Trap or Storage Tanks Required |
-Single or Multiple Installation |
| Low Surface Temperature |
-Ideal for New or Retrofit |
| All Copper or Copper Alloy Wetted Surfaces |
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*Consult AERCO Engineering Manual for complete warranty details.
LITERATURE
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http://www.aerco.com/products/waterwizard.shtml
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