Taco XPB-1, Taco X-Pump Block

Taco X-Pump Block™ (XPB-1) combines a heat exhanger, a variable speed mixing control, a system circulator pump and a heat source circulator pump in a single unit.

You can set the Taco XPB-1 to operate as an outdoor reset control, a setpoint control or a Delta T limiting control without the use of special piping, balancing valves, closely-spaced tees, external controls or complex wiring. Four pipe connections complete the installation.

Taco XPB-1 can handle up to 50,000 BTU's of heat transfer and is perfect for small to medium radiant heating or snow-melt additions to an existing system.

Taco X-Pump Block features:

• All-in-One Heat Exchanger, Dual-sided Circulators and Mixing Control Package
• Brazed Plate Heat Exchanger (Stainless Steel Material, Easily Removable for Servicing, Provides Complete Isolation)
• Only 4 Pipe Connections Required
• Plug-in Low Voltage Connections
• Solid State Microprocessor Design
• Greatly Decreases Installation Time
• Substantial Space Savings
• Line Cord Included, Hard Wire Option
• Bronze Casing for Open or Closed Systems
• Replaceable Cartridge Design
• Maintenance Free, Wet-Rotor Circulators
• 2 Operation Modes: Outdoor Reset and Setpoint with or without Delta T Limiting
• Main System Pump Contact
• 100% Pump Operation / Control Override Switch
• Automatic Pump Exercise
• Adjustable Reset Ratio
• Warm Weather Shutdown
• Large LCD Display
• Outdoor and 2 Strap-on Sensors included

Taco XPB-1 performance data:

Flow Range: 0 – 7.5 GPM
Head Range: 0 – 15.5 Feet
Minimum Fluid Temperature: 32˚F (0˚C)
Maximum Fluid Temperature: 185°F (85˚C)
Maximum Working Pressure: 125 psi
Connection Sizes: 3/4” NPT (female threaded)

Taco XPB-1 electrical data:

Voltage: 120V
Frequency: 60Hz
Phase: 1
Current: 2 Amps

Documentation:

Taco X-Pump Block Catalog (pdf)

Installation Instructions (pdf)

Taco XPB-1 Submittal Data (pdf)

General Schematics (pdf)

Wiring Guide (pdf)