---
product_id: 25364432
title: "SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More"
brand: "ecojay"
price: "51641 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/25364432-smartzone-3x-3-zone-hvac-controller-kit-w-temp-sensor
store_origin: IS
region: Iceland
---

# Universal multi-stage compatibility LED terminal & digital status display 3-zone precise temp control SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More

**Brand:** ecojay
**Price:** 51641 kr
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your climate game with SmartZone-3X — where precision meets power!

## Quick Answers

- **What is this?** SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More by ecojay
- **How much does it cost?** 51641 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/25364432-smartzone-3x-3-zone-hvac-controller-kit-w-temp-sensor)

## Best For

- ecojay enthusiasts

## Why This Product

- Trusted ecojay brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Status at a Glance:** LED indicators and digital display keep you informed with real-time system insights.
- • **Triple-Zone Mastery:** Control 3 HVAC zones independently for ultimate comfort customization.
- • **Plug & Play Simplicity:** Effortless installation with intuitive setup—get up and running fast.
- • **Smart Supply Air Sensor:** Includes temp sensor to optimize staging and protect your HVAC investment.
- • **Universal Compatibility:** Seamlessly replaces top brands like Honeywell, Zonefirst, and more—no system left behind.

## Overview

The SmartZone-3X is a cutting-edge 3-zone HVAC controller kit featuring a supply air temperature sensor for efficient staging and equipment protection. Compatible with virtually any HVAC system—single, multi-stage, or variable speed—it offers easy installation, LED terminal indicators, and a digital display for full system status. Backed by a 5-year warranty, it replaces popular models like Honeywell HZ322 and Zonefirst, delivering professional-grade climate control for modern homes and offices.

## Description

SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More

## Features

- 3 Zone HVAC zone control - Version 3.0 (Replaces SmartZone-2X)
- Supply air temp sensor included for efficient staging & equipment protection
- Universally Compatible - Works with any system; single or multi-stage or variable speed
- Easy to install; Simple to use; 5 year mfg. waranty
- SmartZone features LEDs on every terminal & digital display showing full status

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ECOJAY |
| Part Number | ZS2X-2.0 |
| Item Weight | 1.1 pounds |
| Product Dimensions | 10.5 x 5 x 1.9 inches |
| Item model number | ZS4X-2.0 |
| Is Discontinued By Manufacturer | No |
| Power Source | Hardwire |
| Voltage | 24 Volts |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Color:** white
- **Brand:** ECOJAY
- **Voltage:** 24 Volts
- **Product Dimensions:** 11"L x 5"W x 1.5"H
- **Material:** Plastic

## Images

![SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More - Image 1](https://m.media-amazon.com/images/I/71HjlKYUehL.jpg)
![SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More - Image 2](https://m.media-amazon.com/images/I/711Hx+8nF8L.jpg)
![SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More - Image 3](https://m.media-amazon.com/images/I/71YzLGeI0EL.jpg)
![SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More - Image 4](https://m.media-amazon.com/images/I/81cP43WxT1L.jpg)
![SmartZone-3X : 3 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell HZ322, EWC, Zonefirst, Zonex, Durozone & More - Image 5](https://m.media-amazon.com/images/I/712FjVBWcrL.jpg)

## Questions & Answers

**Q: Will this 2 zone panel work with a variable speed compressor (American Standard Platinum 20)?**
A: If your hvac system uses 24VAC controls our SmartZone controllers will be compatible up to 2 speeds. If your hvac system uses "communicating" controls (and variable speed compressors typically are communicating) SmartZone or any other 24VAC third party zone control products will not be compatible.

**Q: Can a carrier/bryant dampact90deg-b damper actuator be used? Does smartzone constantly energize the signal wire or only for certain amount of time?**
A: UPDATE FROM SELLER:  Many Carrier actuator ARE compatible with SmartZone (even though some are not).  If you can find the model number - some ARE COMPATIBLE: HF21KJ008 & HF21KJ005 and others are too.  In the data sheet for your actuator it should indicate that it is 24VAC and that it can "STALL" without damaging the motor.  SEE OTHER ANSWER FROM SELLER, it still applies to some models of actuators.  Contact us directly with model number to verify.

**Q: Hi, does it support dual stage systems? Thanks**
A: Smartzone 2X and 4X support 2 cooling and 3 heating stages.

**Q: Will this replace z tech zc2s (001-00240) two zone control unit with outside air "smartvent" ?**
A: Ecojay's SmartZone ZS2X zone controller is compatible with all 24VAC thermostats, 24VAC 2 wire (spring return) and 3 wire (power open/close) dampers, and is configurable for conventional heat/cool, heat pump and heat pump with fossil fuel hvac equipment up to 2 stages of cool and 3 stages of heat. The ZC2S control is compatible only with conventional heat/cool single stage hvac equipment and is not compatible with 3 wire power open/close dampers. With regard to your "Smartvent" system, SmartZone can turn on/off any 24VAC hvac accessory with a 24VAC input circuit including humidifiers, UV light supply air sterilizers, ventilation controls and other devices. SmartZone allows independent control of the hvac equipment from each zone thermostat and is capable of handling heat and cool operations including concurrent opposing heat and cool calls from different zones.  All SmartZone products carry a 5 year replacement warranty.

## Frequently Bought Together

- SmartZone-2X : 2 Zone HVAC Controller KIT w/ Temp Sensor; Dual Climate Control to Replace Honeywell, EWC, Zonefirst, Zonex, Durozone & More
- Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse
- SmartZone-4X Control - 4 zone controller KIT w/Temp sensor - Universal Replacement for honeywell zoning panel truezone hz432 & more

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-31*