B+II Water Wizard

B+II Water Wizard

Our most popular steam-to-water package, the B+ Water Wizard features dedicated sub-cooling capabilities for enhanced operating efficiency.

AERCO's unique feed-forward monitoring system and fully modulating control valves maintain +/-4°F water temperatures under the diversified load patterns of commercial domestic hot water applications. Performing with 90%-99% thermal efficiency, the unique 2-pass helical coil heat exchanger design of these single wall heaters is self-descaling and produces sub-cooled condensate (<160°F) to preserve condensate return pump life. All units are compatible with low or high steam pressures and do not require a storage tank, trap or associated maintenance.

  • Accurate Temperature Control ±4°F
  • Choice of Electronic or Pneumatic Controls
  • Compact Foot Print <4ft²
  • Automatic Self-Descaling
  • Automatic Condensate Subcooling
  • Fully Modulating Variable Steam Input
  • No Trap or Storage Tanks Required
  • Low Surface Temperature
  • ASME- B&PV Code Sec. VIII, Div. 1 Stamped
  • All Copper, Copper Alloy or Stainless Steel Wetted Surfaces
  • 10-Year Warranty on Complete Hx*
  • 20-Year Warranty on Pressure Vessel and
  • Integral Demand Anticipator*
  • Supports a Variety of Applications
Packaged Heater - Shipped completely assembled and ready for immediate hook-up; includes heat exchanger, your choice of electronic or pneumatic steam valve, and full controls package.

Bare Heater - Heat exchanger only; insulation optional.

Materials of Construction
  • Standard: Copper or copper alloy wetted surfaces
  • Optional: 0.065" thick copper or copper-nickel tubing
Domestic Water Storage Tank - AERCO storage tanks are ASME certified glass-lined pressure vessels designed for use with instantaneous water heaters. When contending with challenging applications they assure consistent hot water service during peak demands. The AERCO storage tanks are available in stratified or accumulator storage configurations.
Electronic Controls -  AERCO's exclusive electronic control system combines a control box assembly with all circuitry, a flow meter installed at the cold water inlet for feed-forward sensing, feedback sensors and voltage regulator. To maintain optimal temperature control, the system utilizes PID algorithms to monitor outlet temperature and change control valve position. Easy-to-use digital displays are protected by clear-cover enclosure which can be locked. The system also includes an overtemp limit switch and water solenoid valve to function as a secondary water relief valve in an over-temperature condition.

Modbus Communications - Optional control board supports remote control and integration via Modbus protocol to Building Automation or Energy Management Software via RS-232 or RS-485 port.

Communications Gateway - Optional accessory supports integration with BACnet, LonWorks and N2 systems. Available only for heaters equipped with Modbus control board.

Pneumatic Controls - AERCO's exclusive Loadalert system continuously monitors water temperature and flow and modulates the flow of steam through the control valve and into the coils. Control panel includes pneumatic controller and dual solenoid valve over-temperature limit system. (One solenoid to disable steam control valve; One solenoid to perform as a secondary water relief valve.) Power on/tripped status lights, liquid-filled remote capillary thermometer and compound steam pressure gauge also included.

Dry Contacts - Optional for remote "High Limit Tripped Status" indication.

Controls & Electrical Wiring
File Type View Save File Type View Save
Electronic Control Box Layout .pdf .dwg
Temperature Limiting System            
Wiring Diagram (AP-A-1007) .pdf .dwg
Literature & Performance Data
File Type View Save File Type View Save
Product Brochure .pdf
Electronic Control Package Sales Sheet .pdf
Electronic Control Package Data Sheet .pdf
B+II Water Wizard Tech Data Sheet-Canada .pdf
B+II Water Wizard Tech Data Sheet .pdf
Pneumatic Valve Tech Data Sheet .pdf
Electronic Control Valve Data Sheet .pdf
Sizing & Application Guidelines
File Type View Save File Type View Save
Union Orifice Sizing .pdf
Guidelines for On/Off & Solenoid-Type Fixtures .pdf
Steam Trap Guidelines (A701.0) .pdf
Laundry Systems Sizing            
Technical Bulletin (HE-2020) .pdf
Sizing Data .pdf
Product & Component Drawings
File Type View Save File Type View Save
Dimensional Drawings            
Packaged w/ Pneumatic Valve .pdf .dwg
Bare Heater .pdf .dwg
Packaged with Electronic Valve-Canada (AP-A-785) .pdf
Pneumatic Valve 1-2" Exploded View .pdf
Pneumatic Valve 2.5"- 4" Exploded View .pdf
Electronic Valve 1-2" Exploded View (PL-A 148) .pdf
Electronic Valve 2.5"- 4" Exploded View (PL-A-149) .pdf
Installation & Piping Drawings
File Type View Save File Type View Save
Single Heater            
Single Heater (SD-A-326) .pdf .dwg
With Accumulator (SD-A-329) .pdf .dwg
With Stratified Storage .pdf .dwg
Multiple Heaters in Parallel            
Multiple Heaters in Parallel (SD-A-327) .pdf .dwg
With Accumulator (SD-A-444) .pdf .dwg
With Stratified Storage .pdf .dwg
File Type View Save File Type View Save
Pneumatic Control Box Layout .pdf .dwg
Electronic Control Box Wiring Diagram (SD-A-666) .PDF .DWG
File Type View Save File Type View Save
Temperature Limiting System            
With Remote Relay Alarm .pdf .dwg
File Type View Save File Type View Save
Single Unit Spec with Electronic Control Valve-Canada (A 201.0C) .doc
Single Unit Spec with Pneumatic Valve .doc
Single Unit Spec with Electronic Control Valve (A 201.0) .doc
File Type View Save File Type View Save
A+, B+, Wizard, E+ Warranty .pdf

Operation & Maintenance
File Type View Save File Type View Save
ECS Retrofit Instructions (SB6-02) .pdf
Packaged WaterWizard Steam-to-Water Heater HE-110 .pdf
Electronic Controls System O&M (AC-105) .pdf
Pneumatic Temperature Controller (AC-103) .pdf
File Type View Save File Type View Save
Coil & Riser Replacement Instructions .pdf
Adding a Communications Board to ECS (SB6-03) .pdf
ECS and CXT-E Retrofit Kit Instructions (TID-0141)12-30-14 .pdf