Honeywell T6373A1108: The Legendary Mechanical Thermostat for Reliable FCU Control
In the world of HVAC systems, simplicity is often the ultimate key to longevity. The Honeywell T6373A1108 Temperature Controller, part of the XE70 series, is the quintessential example of this philosophy. Without the need for complex LCD screens, the T6373A1108 remains a top choice for Fan Coil Unit (FCU) systems due to its absolute reliability and nearly indestructible service life.
This product is officially distributed by DLK Trading Service Company Limited.
1. Why is the Honeywell T6373A1108 the "King" of Mechanical Controllers?
Sourced from the precise technical data in the Honeywell Series T6372/T6373 Catalog, the T6373A1108 model offers unique engineering features:
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Dual Diaphragm Sensing Technology: It utilizes a gas-filled dual diaphragm sensing element that ensures high sensitivity and accurate temperature control without requiring a power supply for a processor.
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Integrated Heat Anticipator: A built-in thermal anticipator optimizes the switching cycle of the valves, keeping the room temperature stable at the ideal setpoint.
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Intuitive User Interface: Featuring a classic rotary setpoint dial and physical toggle switches (Fan Speed, System On/Off), it allows anyone to operate the unit immediately without training.
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Timeless Design: Its compact, unobtrusive styling is designed for direct wall mounting or installation on a standard conduit box, making it suitable for everything from industrial workshops to office environments.

2. Practical Applications of the T6373A1108 Thermostat
The sheer durability of the Honeywell T6373A1108 is the most convincing answer to why to choose Honeywell FCU controllers for HVAC systems, particularly for the following project types:
Factories and Industrial Zones
In environments with high dust or humidity, electronic sensors are often prone to circuit failure. The T6373A1108, with its robust mechanical contacts, serves as the optimal solution, operating stably for decades.
Commercial Office Buildings and Dormitories
With the capability to control 3-speed fans and On/Off valves for 2-pipe systems, this device ensures maximum user comfort with the lowest possible initial investment and maintenance costs.
3. Technical Specifications at a Glance (Sourced from Catalog)
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Technical Feature |
Specifications for Model T6373A1108 |
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System Application |
2-pipe FCU (Fan & Valve Control) |
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System Switch |
On - Off |
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Fan Switch |
3-speed (Low - Med - High) |
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Setpoint Range |
10°C to 30°C |
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Power Supply |
220 VAC, 50/60 Hz |
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Contact Rating |
4(2)A for Fan, 4(2)A for Valve |
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Protection Class |
IP30 |
4. Secure Genuine Honeywell T6373A1108 from DLK
Selecting a mechanical controller requires a commitment to the quality of the internal components. DLK Company is proud to be a trusted provider of Honeywell solutions, offering:
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100% Genuine Assurance: Brand new units in original packaging with full CO/CQ documentation from the manufacturer.
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Professional Technical Support: Our experienced engineering team provides expert advice on wiring diagrams based on the Honeywell T6373 Catalog.
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Ready Stock: Fast delivery for high-volume orders for MEP projects and nationwide building maintenance.
For a competitive quote or technical assistance regarding the T6373A1108 model, please contact our hotline at 070 357 0101 today.