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3G Electric
LENNOX 24Z12 Digital Thermostat, Manual Changeover, Heat/Cool, 24V AC - Digital Thermostats
LENNOXDigital Thermostats

LENNOX 24Z12 Digital Thermostat, Manual Changeover, Heat/Cool, 24V AC

<p>The LENNOX 24Z12 is a reliable digital thermostat designed for straightforward heat and cool control. It features manual changeover with a slide switch for system settings (Cool-Heat-Off) and fan settings…

SKU 3G-OTH-70354

Brand
LENNOX
Item
24Z12 Digital Thermostat, Manual Changeover, Heat/Cool, 24V AC
Part Number
24Z12
Category
Digital Thermostats
Available to Order
Also known as:24Z12LENNOX
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

LENNOX
Manufacturer Part Number
24Z12
Type
Manual, B/C/G/O/Rc/Rh/W1/Y1, Auto-On, Cool-Heat-Off, Horizontal
Shape
Rectangle
Voltage
24V AC
Digit Size
Standard
Application
Heat and Cool
Control Type
Slide Switch
Fan Settings
Auto-On
Key Features
Optional Celsius Display
Changeover Type
Manual
System Settings
Cool-Heat-Off
Mounting Direction
Horizontal
Terminal Designations
G
Temperature Differential
± 1 °F

Technical Documents

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

Product Description

<p>The LENNOX 24Z12 is a reliable digital thermostat designed for straightforward heat and cool control. It features manual changeover with a slide switch for system settings (Cool-Heat-Off) and fan settings (Auto-On). Operating on 24V AC, it supports standard terminal designations (B/C/G/O/Rc/Rh/W1/Y1) and offers an optional Celsius display. With a temperature differential of ±1°F, it provides precise temperature management for commercial and industrial applications.</p><p>Ideal for HVAC contractors and facility managers, this thermostat ensures easy, dependable operation. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What are the system and fan settings on the LENNOX 24Z12?

The LENNOX 24Z12 has system settings of Cool-Heat-Off (manual changeover) and fan settings of Auto-On. It uses a slide switch for control.

Does the LENNOX 24Z12 support Celsius display?

Yes, the LENNOX 24Z12 features an optional Celsius display, allowing you to choose between Fahrenheit and Celsius as needed.

Used in

Common applications for LENNOX
Commercial HVAC — Lennox fixed set-point air pressure switch (57W79) for monitoring airflow in rooftop units
Residential heating — Lennox digital thermostat (24Z12) for 24V AC heat and cool control in furnaces
Refrigeration — Lennox 24-inch aluminum fan blade (25W67) for condenser air movement
HVAC air handling — Lennox dual-inlet forward-curved blower wheel (85L53) for replacement in air handlers
Furnace systems — Lennox draft inducer assembly (47M55) for ensuring proper combustion airflow
Industrial ventilation — Lennox blower wheel (25W67) for air circulation in commercial HVAC equipment
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LENNOX Products

3G Electric supplies LENNOX digital thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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