Bell Gossett 109432 Z-6B 6 Zone Switching Relay Heat Circulator Pump Controller

Description: ITT Bell & Gossett’s Zone Trol II McDonnell & Miller Zone Smart is a ready to install controller for hydronic circulators in residential and commercial applications. All ZoneTrol II controllers are UL listed and feature multifunction LEDs that are visible without removing the cover for easy start-up and troubleshooting. All units are compatible with analog and digital 24 VAC thermostats, including “power stealing” designs. The multi-zone controllers feature an advanced microprocessor design that provides domestic hot water (DHW) priority & timer, pump exercise and a post purge timer without the need for add-on circuit boards or modules. Four and six zone controllers are field expandable for up to 18 pumps and are available with integrated, pre-wired boiler reset or mix reset controllers. Units with reset controllers include all necessary sensors. Standard Features (multiple zone controllers only) Priority: Enables DHW zone to have priority over heating zones for limited period of time. User adjustable settings include OFF (disables priority functionality), 30 minutes and 60 minutes. Post Purge Timer: Circulator(s) will continue to run for 90 seconds after thermostat opens allowing additional extraction of BTUs from high mass boilers. User adjustable settings are OFF and ON. Exercise: Runs each circulator for 10 seconds after each 72 hours of inactivity. User adjustable settings are ON and OFF. Expandabiltiy: 4 & 6 zone controllers can easily be connected via an RJ-11 cable to accommodate systems consisting of up to 18 circulators. Optional Features (4 & zone controllers only) Boiler Reset: Incorporates a pre-wired integral boiler reset controller into the ZoneTrol II enclosure. Reset controller cycles the burner to maintain the optimum system supply temperature relative to the outdoor air temperature. Warm weather shutdown functionality can be activated to prevent system operation above a user-selectable outdoor temperature threshold. All necessary sensors are included. Mixing Reset: For use on hydronic systems incorporating a variable speed injection pump. Incorporates a pre-wired integral mixing reset controller into the ZoneTrol II enclosure. Mixing Reset controller varies the speed of the injection pump to maintain optimum radiant loop temperature relative to the outdoor air temperature. The boiler return temperature is also monitored to ensure that the appropriate minimum water temperature is not violated. Warm weather shutdown functionality can be activated to prevent system operation above a user-selectable outdoor temperature threshold. All necessary sensors are included. Models Z-4B and Z-6B Multiple Zone Controllers with Boiler Reset Furnish and install zone pump controller(s) as shown on plans. The controller(s) shall be UL listed and suitable for operation of 6 circulator pumps. Controller shall include a transformer, relays with SPST switching action and a prewired printed circuit board. The zone controller shall have user selectable DHW priority with adjustable timer (30 / 60 minutes, selectable purge timer and pump exercise functionality. Units requiring plug-in cards for exercise, purge, priority or expansion shall not be acceptable. LED status lights shall be visible through the front of the enclosure. Controller shall incorporate a pre-wired integral boiler reset controller into the enclosure. The controller shall cycle the burner to maintain the optimum system supply temperature relative to the outdoor air temperature. Warm weather shutdown functionality shall be included to prevent system operation above a user selectable outdoor temperature threshold. All necessary sensors are included. All of the parts sold are 100% guaranteed to work properly. Unfortunately, they are not guaranteed to fix your problem or to fit your particular unit. It is your responsibility to properly diagnose your part need and to make sure the part you purchase is designed for your brand, model, and serial number of your application. If you need assistance determining if a particular part will fit your unit, feel free to contact me PRIOR to purchasing the item and I will be more than happy to verify if the part will fit your brand, model, and serial number. PARTS CANNOT BE RETURNED BECAUSE THEY DID NOT SOLVE YOUR PROBLEM OR DID NOT FIT YOUR APPLICATION! All items are marked for fraud prevention purposes. No manufacture warranty on new or used parts, unless mentioned with bold lettering. We can install this item for you in the Chicagoland and South Wisconsin areas for additional fee.

Price: 199.99 USD

Location: Vernon Hills, Illinois

End Time: 2024-11-16T02:22:55.000Z

Shipping Cost: 0 USD