3 Pump Switching Relay
The Switching Relay 303P connects up to three thermostats and operates circulators to provide heating to a zoned hydronic heating system. Zone 1 has optional priority over zones 2 and 3 and can be used to provide heat to an indirect domestic hot water tank. The 303P includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation of the last operating zone to maximize energy savings. The 303P provides a RoomResponse™ signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.
Features
- Pump exercising, post purge
- Four ground screws, Top, bottom and back conduit knockouts
- LED for each zone, priority, end switch and RoomResponse™, away signal shared between tekmar thermostats
- Two spare fuses included
- CSA approved
- Unlimited zone expansion, zone priority
- Priority override, pump exercising
- Fuses protect transformers and pumps
- RoomResponse signal, compatible with all low voltage thermostats
Resources
Prompt Shipping and Professional Packing
Due to our long-term partnership with UPS, FedEx, DHL and a variety of other top global carriers we can offer various shipping options. Our warehouse staff are expertly trained and will wrap your items according to our precise and exact specifications. Your items will undergo a thorough inspection and be adequately secured before being delivered. We ship to thousands customers every day from all over the world. The fact that we're dedicated to becoming the largest online retailer in the World is evident. Both Europe as well as the USA have distribution and warehouse centres.
Orders with more than 1 item are assigned processing times according to each item.
Prior to shipment, our team will perform an extensive inspection of the items you purchased. The majority of orders are delivered within 48 hrs. The expected delivery time will be between 3 and 7 days.
Returns
Stock is dynamic, and is not completely managed by us because of the involvement of several different parties, such as the factory and our warehouse. The levels of stock can change at any moment. Be aware that it's possible that your order could become unavailable even after you've placed your order.
The period of time is 30 days. If 30 days have passed in the past since you purchased however, we're unable to give you a refund or exchange.
The item must not be used, and it must be in the original packaging. It should also remain in the original packaging.
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