Versatile D Series

Versatile D series is a big family which is suitable for most kinds of heating and air-conditioning systems' terminal control or equipment control. For heating application, it is suitable for hydronic floor heating, electrical heating and FCU+ hydronic floor heating. Some models also provide local schedule and remote control via free mobile app which makes it easy to improve comfort and save energy. And models with RS-485 interface can be integrated by BA System via Modbus-RTU protocol.

Download
Certification Marks
Features Technical Data Model List Wiring Diagram Installation Diagram

Features

Press Button
Button Lock
White Backlight
Up Power Restoration
OnOff Timer
Programmable Schedule
Anti-Freezing
Over-heating Protection

Technical Data

    Room Temp Accuracy :+1°C

    Display Temp Resolution : 0.5°C

    Environmental:
         Operating Temperature Range: 0-45°C ;

         Operating Humidity Range: 5-95% RH 
    Power Consumption: <2 W
    Power supply: AC85-250V, 50 /60Hz
    Terminations:
         Hydronic Heating Model: one 2.5mm2 or two 1.5mm2 wiresElectrical

         Heating Model: one 4mm2
    Max Load Current:
         Hydronic Heating Model: <2A (resistive), <1A (inductive)

         Electrical Heating Model: <16A (resistive), <6A (inductive)

    Dim. H x W x D(mm):86x86x15.5
    Mounting Hole Dim.: 60mm
    Protection Class: IP30
    Compatible Remote Sensor Type: NTC10k B=3950

Model List

Model Connectivity Type of FCU Type of Actuator Type of Fan OnOff Timer Schedule Remote Sensor DO
(Dry Contact)		 Note
RS-485 Wi-Fi 2-Pipe 4-Pipe 2-Wire 3-Wire AC 3-Speed Motor Fan 5-2
(4 Periods)
HA223-L √√ Hydronic
HA8223-TL-MD √√√√√
HA9223L-L √√√√
HA8323-S2TL-MD √√√Over-heating Protection Electrical
HA9323-S2L √Over-heating Protection
HLA2023DA2-L √√√√ Hydronic FCU
HLA2023DB2-L √√√√
HLA2023DAL-L √√√√
HLA2023DBL-L √√√√
HLA9023DB-L √√√
HLA9023DA2-L √√√√
HLA9023DB2-L √√√√
HLA9023DAL-L √√√√√
HLA9023DBL-L √√√√√

Wiring Diagram

Installation Instructions

APPLICATION

RELATED SOLUTIONS

Data center
Data center
Smart Hospital Solution
Smart Hospital Solution
HaiLin Industrial Park Building Energy Management Solution
HaiLin Industrial Park Building Energy Management Solution
Hotel Building Automation Solution | HaiLin Controls
Hotel Building Automation Solution | HaiLin Controls

RELATED NEWS

News HVAC Controls Wholesale: How to Vet a China Manufacturer Before Your First Container Order
On July 17, 2026
HVAC Controls Wholesale: How to Vet a China Manufacturer Before Your First Container Order
A structured 3-stage guide for HVAC distributors to evaluate Chinese manufacturers, including factory screening, quality control verification, sample testing, and commercial terms negotiation.
Learn More
News UL, CE and BTL Certified HVAC Controls: Why Certifications Matter for Global Distributors
On June 11, 2026
UL, CE and BTL Certified HVAC Controls: Why Certifications Matter for Global Distributors
Understand UL, CE, BTL, FCC, and RoHS certifications for HVAC controls. Market requirements by region, how to verify certificates, and common procurement pitfalls.
Learn More
News Fan Coil Thermostat Buyer’s Guide: 2-Pipe vs 4-Pipe Systems Explained
On May 29, 2026
Fan Coil Thermostat Buyer’s Guide: 2-Pipe vs 4-Pipe Systems Explained
Learn how 2-pipe and 4-pipe fan coil systems affect thermostat selection. Includes valve matching, changeover logic, power options, and a project-type selection matrix.
Learn More

RELATED PRODUCTS

We value your privacy

We use cookies to enhance your browsing experience, serve personalised ads or content, and analyse our traffic. By clicking "Accept All", you consent to our use of cookies.