Ocean Controls Limited
                                                                                                           
Verified Supplier
24 Years
Since 2002
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White 24V LCD 2 Heat 1 Cool Air Conditioner Heat Pump Thermostat with 32°F-99°F Range and 24VAC Power

Price Negotiable
Price: 15-20$,negotiable
MOQ: 1 sample / negotiable
Delivery Time: 7-60 days
Brand: OCSTAT / OEM
Product Description
Product Overview

The Model 3221 is a professional-grade 24V LCD thermostat designed for 2 Heat / 1 Cool air conditioner and heat pump systems. This non-programmable central control thermostat features a clear white LCD display and is specifically engineered for USA market requirements.

Technical Specifications
Specification Details
Model Number 3221
Programmability Non-Programmable
Temperature Range 32°F-99°F (1°C-40°C)
Control Temperature Range 44°F-90°F (7°C-32°C)
Temperature Accuracy ±1°C (at 20°C)
Power Source DC 2 x AA 1.5V Alkaline batteries or 24VAC (18-30VAC), 50/60 Hz hardwire
Key Features
  • 2 Heat / 1 Cool operation for versatile climate control
  • Heat pump compatible for energy-efficient heating
  • Large, easy-to-read LCD display with clear visibility
  • Optional various backlight colors for customization
  • Electric or Gas system configurable
  • Separate B & O terminals for flexible installation
  • Independent heating and cooling swing adjustments with 2nd stage control
  • Filter change indicator with selectable on/off function
  • Contemporary design suitable for modern homes
Product Images
Front view of Model 3221 thermostat showing LCD display and controls
Side view of thermostat displaying temperature settings and interface
Installation diagram showing wiring connections for Model 3221 thermostat
Quality Assurance
  • 15+ years of overseas market experience ensuring reliability
  • Every product undergoes rigorous testing before packaging
  • Professional engineering team available for custom requirements
  • Dedicated sales team providing comprehensive support
  • Established logistics partnerships for cost-effective shipping
  • Excellent after-sales service and technical support
Frequently Asked Questions
What is the minimum order quantity?
500 pieces standard, but sample orders below 500 pieces are accepted. Larger quantities receive better pricing.
Are you a factory or trading company?
We are a professional manufacturer with our own factory facilities.
Can you produce custom designs?
Yes, we accept OEM and ODM orders with custom specifications.
What payment methods do you accept?
We accept L/C, T/T, Western Union, and PayPal for secure transactions.
How do you deliver products?
Express delivery (DHL, UPS, FEDEX, TNT), air freight, and sea freight options available.
Certifications & Standards

All products undergo comprehensive quality control and hold CE, RoHS, and ISO certifications, ensuring compliance with international standards for safety and performance.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Ocean Controls Limited
Location Unit C,9/F Winning House,No.72-74 Wing Lok Street, Sheung Wan,Hongkong
Contact Person Coco Pan

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