TORONTO — tekmar Control Systems has announced the addition of four new switching relay and zone valve control models to their existing line of zone control solutions. tekmar now offers 2-zone pumps, ...
Description: This series of zone controls manages circulators and boilers in residential hydronic heating systems. The non-networked devices control up to six heating zones and can be coupled together ...
No matter what the application is, when a definite-purpose solution is required, time delay relays (TDRs) can provide simple, reliable, and economical control. Adjusting the delay time is often as ...
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