Zone by Pump Systems

A Zone by Pump System is a type of radiant heating system where multiple zones are controlled by separate circulator pumps instead of zone valves. In this configuration, each zone has its own dedicated pump that circulates hot water through the piping to the designated area of the building.

Components of a Pump Hydronic Radiant Heating System:

1. Heat Source (Boiler): This could be a gas or electric boiler that heats the water used in the system.
2. Master Panel: Delivers the heated water to the zone by pump panel and returns the cooled water back to the boiler to be reheated.
   
3. Zone by Pump Zone Panel: Each zone of the building is controlled by a circulator pump, which regulates the flow of heated water to the corresponding area. These pumps are typically small, low-wattage pumps that are controlled by the zone's thermostat.
4. Manifolds: The manifold is the distribution hub that splits the hot water from the heat source to different zones. It typically connects the heat source (boiler) to the various zone pumps and pipes. Hydro Smart manifolds include flow meters for monitoring the water flow and balancing valves to ensure proper distribution of heat.
5. PEX Tubing: Oxygen barrier PEX tubing is used to distribute the hot water throughout the building. These pipes are embedded in the floors, ceilings or rand to baseboards or radiators to provide radiant heat.
6. Thermostats: Each zone has a thermostat that allows occupants to set the desired temperature. When the temperature falls below the set point, the thermostat signals the pump to turn on and allow heated water into the system. Once the desired temperature is reached, the pump shuts off.

How Zone by Pump Hydronic Radiant Heating Systems Work

1. Heating: The boiler heats the water, which is then distributed through a manifold system to various zones.
   

2. Zone Activation: Each zone has a thermostat that monitors the temperature. When the temperature drops below the desired setting, the thermostat sends a signal to activate the corresponding circulator pump for that zone.

    

3. Water Circulation: Once the pump is activated, it circulates hot water through the piping embedded in the floors, walls, or ceiling of the zone. As the water passes through the pipes, it radiates heat into the space.

    

4. Deactivation: When the thermostat detects that the room has reached the desired temperature, it deactivates the circulator pump. The hot water stops circulating, and the system rests until the thermostat calls for heat again.

    

5. Return and Reheat: The water that has cooled down after passing through the system returns to the boiler to be reheated. This cycle repeats as needed.