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We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days from delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
BBAYYAO's Upgrade SR501-4 Switching Relay delivers precise single-zone control for hydronic heating systems. Engineered as a direct replacement for the Taco SR501, this relay helps restore consistent heat delivery to a single zone—whether you have baseboard heaters, radiators, or convectors. With a familiar layout and clear terminals, it is designed to minimize downtime and get your system back to comfortable operation quickly, so rooms feel evenly heated and ready for the next thermostat cycle.
Designed for residential hydronic heating, the SR501-4 emphasizes safety and long-term reliability. It operates on 24V power and aligns with common low-voltage controls, helping you maintain steady heat delivery without complicated changes to your control layout. This relay is built to handle daily use, making it a practical option for maintenance or upgrading an existing system. While it does not guarantee specific outcomes, it communicates a clear possibility of restored performance and simplified upkeep when a single heating zone needs attention. If you are a professional installer or an informed homeowner, the SR501-4 offers a balance of compatibility, ease of use, and durable design that supports ongoing system reliability.
Q: What is the BBAYYAO Upgrade SR501-4 Switching Relay compatible with?
A: It's a direct drop-in replacement for Taco SR501, designed for a single heating zone in hydronic systems.
Q: What installation considerations should I know?
A: The unit uses 24V operation with clear terminal labels, making swaps straightforward for professionals or confident DIYers.
We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.
We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.
We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.
To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.
Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.
When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.
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