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Honeywell T991A1426 Proportional Temperature Control - Proportional Temperature Controls
HoneywellProportional Temperature Controls

Honeywell T991A1426 Proportional Temperature Control

The Honeywell T991A1426 is a proportional temperature control (VAV thermostat) with a 0°F to 100°F range, operating on 24V AC input and a 135 ohm potentiometer output signal. It features a 5 ft capillary and supports…

SKU 3G-OTH-67701

Brand
Honeywell
Item
T991A1426 Proportional Temperature Control
Part Number
T991A1426
Category
Proportional Temperature Controls
Available to Order
Also known as:T991A1426Honeywell
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Technical Specifications

Honeywell
Manufacturer Part Number
T991A1426
Type
Horizontal/Vertical
AC
24V
Capillary
5 ft
Input Voltage
24V AC
Output Signal
135 ohm Potentiometer
Potentiometer
135 ohm
Mounting Orientation
Horizontal/Vertical

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

Product Description

The Honeywell T991A1426 is a proportional temperature control (VAV thermostat) with a 0°F to 100°F range, operating on 24V AC input and a 135 ohm potentiometer output signal. It features a 5 ft capillary and supports horizontal or vertical mounting orientation.

Frequently Asked Questions

What is the Honeywell T991A1426 VAV thermostat used for?

The Honeywell T991A1426 is a proportional temperature control used in variable air volume (VAV) systems to regulate temperature in commercial HVAC applications. It provides a 135 ohm potentiometer output signal based on sensed temperature changes, enabling precise damper or valve modulation.

What are the specifications of the Honeywell T991A1426?

The Honeywell T991A1426 operates on 24V AC input and outputs a 135 ohm potentiometer signal. It has a temperature range of 0°F to 100°F, a 5 ft capillary, and supports horizontal or vertical mounting orientation. The manufacturer part number is T991A1426.

Where to buy the Honeywell T991A1426 worldwide?

3G Electric supplies the Honeywell T991A1426 VAV thermostat worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this proportional temperature control.

How to install the Honeywell T991A1426 VAV thermostat?

Mount the Honeywell T991A1426 in a horizontal or vertical orientation as needed. Connect 24V AC input power and wire the 135 ohm potentiometer output to the controller. Ensure the 5 ft capillary is properly routed to sense duct or room temperature. Follow standard HVAC wiring practices.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits
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Honeywell Products

3G Electric supplies Honeywell proportional temperature controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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