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Multi Zone System

A multi zone system (4, 6, or 8 loops) may be used to control area  such as, living quarters, heated garage, heated pool, and heated driveways to a desired temperature. A multi zone system may be provided with a single circulator allowing tubing length  up to 300 feet of 1/2" dia.


For commercial installations, such as offices, cafeteria, hotel lobbies, gymnasiums, factories, heated warehouses, aircraft hangers, nursing homes, childcare centers, etc, a  high flow system may have dual circulators allowing tubing length up to 1000 feet of 3/4" diameter.

Principles of Operation
When any thermostat temperature drops below set point, the respective zone valve will open, activating a switch within the zone valve. This turns on the circulator providing flow through each respective loop.

Any one zone valve may be on at any time, providing the heating for each respective area.

When any zone thermostat has reached its desired temperature setting, the respective zone valve is turned off.

When all thermostats have reached the desired set point, the circulator will be turned off.

The liquid level must be at or above the tank level marking. When liquid level is too low, a audio alarm will sound and disable (protect) the circulator.


System is factory assembled and ready to be wall mounted


Functional Features (or lack thereof)

  • The various zone will demand heat at different time intervals

  • This will provide high flow through any active heating loop. This allows longer tubing installations due to higher fluid flow velocities, providing good heat delivery throughout the loop.

  • There is no make up water connection

  • There is no pressure reducing valve

  • There is no back flow prevention valve (state code)

  • There is no pressurized expansion tank

  • The entire system is self contained and not connected to potable water

  • Fluid level can be observed in opaque tank

  • Any leakage limited to the system capacity since there is no permanent make up water connection

Last modified: 10/22/2008


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