PRO1 IAQ Low Voltage Thermostat: Heat or Cool, Manual
The PRO1 IAQ T721 is a square, push-button digital thermostat for heat-or-cool applications. It operates on 18V AC with a manual changeover and system settings for Cool, Emergency Heat, Heat, and Off. Key features…
SKU 3G-OTH-70402
Also listed as: T 721 · T-721
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The PRO1 IAQ T721 is a square, push-button digital thermostat for heat-or-cool applications. It operates on 18V AC with a manual changeover and system settings for Cool, Emergency Heat, Heat, and Off. Key features include an easy-access battery compartment, a 0.2°F to 2°F temperature differential, and a 44° to 90°F control range.
Frequently Asked Questions
What is the PRO1 IAQ T721 thermostat used for?
The PRO1 IAQ T721 is a manual-changeover digital thermostat for heat-or-cool applications in residential or light commercial HVAC systems. It controls temperature from 44° to 90°F with a 0.2°F to 2°F differential, supporting Cool, Emergency Heat, Heat, and Off settings.
What are the specifications of the PRO1 IAQ T721 thermostat?
The PRO1 IAQ T721 operates on 18V AC, has a square push-button design, manual changeover, and terminal designations including R. It features an easy-access battery compartment, Auto-On fan setting, and a temperature control range of 44° to 90°F with a 0.2°F to 2°F differential.
Where to buy the PRO1 IAQ T721 thermostat worldwide?
3G Electric supplies the PRO1 IAQ T721 thermostat to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this thermostat to your facility, regardless of location.
How to install the PRO1 IAQ T721 thermostat?
Install the PRO1 IAQ T721 by mounting it horizontally on a wall, connecting the 18V AC power and R terminal wire, and setting the manual changeover to Heat or Cool. Always follow the manufacturer's wiring diagram and turn off power at the breaker before installation.
Used in
Common applications for PRO1 IAQPRO1 IAQ Products
3G Electric supplies PRO1 IAQ digital thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
