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MCDONNELL & MILLER 354140 Remote Probe - Replacement HVACR Pumps, Valves & Tubing
MCDONNELLReplacement HVACR Pumps, Valves & Tubing

MCDONNELL & MILLER 354140 Remote Probe

MCDONNELL Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: Remote Probe.

SKU 3G-OTH-78455

Brand
MCDONNELL
Item
& MILLER 354140 Remote Probe
Part Number
354140
Category
Replacement HVACR Pumps, Valves & Tubing
Available to Order
Also known as:354140MCDONNELL
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Technical Specifications

MCDONNELL
Manufacturer Part Number
354140
Product Type
Remote Probe

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MCDONNELL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

MCDONNELL Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: Remote Probe.

Frequently Asked Questions

What is the MCDONNELL & MILLER 354140 liquid level control probe used for?

The MCDONNELL & MILLER 354140 remote probe is used for liquid level sensing in HVAC and industrial boiler systems. It detects water or other conductive fluids to control pump operation, low-water cutoff, or alarm functions, helping prevent equipment damage and maintain safe system operation.

What are the specifications of the MCDONNELL & MILLER 354140 probe?

The MCDONNELL & MILLER 354140 is a remote probe with manufacturer part number 354140. It is designed for liquid level control applications. For detailed electrical ratings, pressure limits, and material construction, consult the product datasheet or contact 3G Electric for technical support.

Where to buy the MCDONNELL & MILLER 354140 probe worldwide?

3G Electric supplies the MCDONNELL & MILLER 354140 remote probe worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this replacement HVACR component.

How to install the MCDONNELL & MILLER 354140 liquid level probe?

Install the MCDONNELL & MILLER 354140 probe in the tank or vessel at the desired level setpoint. Ensure the probe tip is clean and fully immersed in the conductive fluid. Follow the manufacturer's wiring diagram for connection to the control circuit. Always isolate power before installation and verify system compatibility.

Used in

Common applications for MCDONNELL
Commercial boiler rooms — McDonnell & Miller low water cut-offs (e.g., Part 69) for steam and hot water boilers to prevent dry-fire.
Industrial steam systems — McDonnell & Miller water feeders (e.g., 51-S-HD) to maintain water level in low-pressure steam boilers.
HVAC hydronic heating — McDonnell & Miller level controls (e.g., 63-M) for monitoring liquid levels in expansion tanks and receivers.
Boiler maintenance and repair — McDonnell & Miller replacement head mechanisms (e.g., 94-HDLS) to restore function to existing controls.
Process equipment — McDonnell & Miller float blocks (e.g., 64-B) for on/off control of pumps and valves based on liquid level.
Steam boiler safety — McDonnell & Miller level control tappings (e.g., 63-B) to prevent low-water conditions in commercial and industrial systems.
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MCDONNELL Products

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.

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