MCDONNELL & MILLER Combination Low Water Cut-Off/Pump
The MCDONNELL & MILLER Combination Low Water Cut-Off/Pump Controller (Model 93-7B-HD) is a replacement HVACR pump, valve and tubing component. This controller integrates low water cut-off and pump control functions…
SKU 3G-OTH-83741
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Product Description
The MCDONNELL & MILLER Combination Low Water Cut-Off/Pump Controller (Model 93-7B-HD) is a replacement HVACR pump, valve and tubing component. This controller integrates low water cut-off and pump control functions into a single device, designed to protect boilers and manage condensate or feedwater pump operation.
Frequently Asked Questions
What is the MCDONNELL & MILLER 93-7B-HD combination low water cut-off/pump controller used for?
This controller protects boilers from low-water conditions and automatically operates the feed pump. It is used in commercial and industrial steam or hot-water heating systems to prevent dry-firing and maintain safe water levels.
What are the specifications of the MCDONNELL & MILLER 93-7B-HD?
The 93-7B-HD is a combination low water cut-off and pump controller. Its manufacturer part number is 93-7B-HD. It is designed for replacement in HVACR pumps, valves, and tubing applications. For exact electrical and pressure ratings, consult the product data sheet.
Where to buy the MCDONNELL & MILLER 93-7B-HD worldwide?
3G Electric supplies the MCDONNELL & MILLER 93-7B-HD combination low water cut-off/pump controller to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time.
How to install the MCDONNELL & MILLER 93-7B-HD low water cut-off?
Installation must follow the manufacturer's instructions and local codes. Typically, mount the controller in the boiler's water line, connect the probe to the water level, and wire the pump and alarm circuits per the wiring diagram. Always isolate power before servicing.
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3G Electric supplies MCDONNELL replacement hvacr pumps, valves & tubing. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
