Submittal Sheet

101-095
Job: Engineer:
Contractor:
Rep:
ITEM NO. MODEL NO.
• All-in-One Injection Piping, Pumping,
Air Elimination, & Control Package
• 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
• Stainless Steel 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
• Powered or Unpowered
Demand Signal
• Integral Check Valve
• Main System Pump Contact
• 100% Pump Operation / Control
Override Switch
• Automatic Pump Exercise
• Adjustable Reset Ratio
• Warm Weather Shutdown
• Boiler Control or Enable Setting
• Boiler Protection
• Large LCD Display
• C° or F°
• Outdoor and 2 Strap-on
Sensors included
Max. Flow: 15.5 GPM
Max. Head: 15 Feet
Min. Fluid Temperature: 32˚F (0˚C)
Max. Fluid Temperature: 185°F (85˚C)
Max. Working Pressure: 125 psi
Connection Sizes: 3/4” NPT
Submittal Data # 101-095
Supersedes: 02/01/04
Effective: 05/08/15
Application
The Taco Radiant Mixing Block® (RMB) is a complete injection mixing system.
Integral to the unit is a variable speed injection circulator, constant speed system
circulator, air elimination, and the electronics to drive it all. With only four piping
connections needed, the RMB greatly reduces the time and space required for
installation (see Fig. A). The RMB can be set up to operate as an outdoor reset
control or a setpoint control with or without delta T limiting, creating flexibility
never seen before in a single unit.
Operation
Hot water from the boiler loop enters the RMB at the
Boiler Supply port (A). The cooler return water from the
radiant loops enters at the System Return port (B). In the
middle of these two ports, any air in the system is purged
through the integral Taco Hy-Vent®. The injection circulator
varies in speed to blend the two temperatures, injecting the
excess required temperature back through the Boiler Return
port (C). The constant speed system circulator delivers the
required blended water temperature to the radiant loop
through the Radiant Supply port (D).
Sizing and Piping
The Radiant Mixing Block can handle radiant load demands of up to 120,000 BTU’s.
Your current method of zoning the radiant loops (manifolds, zone valves, etc.)
does not change with the installation of the RMB. Multiple Radiant Mixing Blocks
can be used to separate the distinctive temperature requirements between
manifolds. No special piping, just 4 connections and your installation is complete.
Performance Field
Taco Inc., 1160 Cranston Street, Cranston, RI 02920 / [phone] / Fax [phone]
Taco (Canada) Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8 / [phone] / Fax [phone]
www.taco-hvac.com
Submittal Data Information
Radiant Mixing Block®
Fig. A
A B
C
D
Electrical & Weight Data
Model Volts Hz Ph Amps RPM HP
Ship Wt.
lbs. Kg
Permanent Split Capacitor
Impedance Protected
RMB-1
Motor
Ty p e
120 60 1
2 3250
1/40 & 1/25 18.5
8.4
Features
Performance Data
Low-Lead Compliant
Certifications & Listings
FOR INDOOR USE ONLY
web only
Radiant Mixing Block
®
Effective: May 8, 2015 Supersedes: February 1, 2004
Submittal Data Information