Inverter PTAC/HVAC & Heat Pump Control Board

Smart Control Solution for High-Efficiency PTAC Systems

Inverter PTAC/HVAC & Heat Pump Control Board

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Inverter PTAC Main Control Board for Packaged Terminal Air Conditioners
The inverter PTAC main control board is designed for packaged terminal air conditioners used in hotels, apartments and commercial buildings. Supporting cooling, heat pump, electric heating and hot-water modes, it integrates intelligent defrost logic, adaptive PID control and full DC motor compatibility. With global voltage support and RS485 Modbus communication, this HVAC controller board is ideal for OEM PTAC manufacturers.

DatasheetGet A Quotation

Trust

Core Certification

Our Customer

Customer Testimonial

German Pool Heat Pump

PFC + Driver Board Case

“Hunovate supplied the complete PFC power and drive solution for our high-end pool heat pump. The sensorless FOC drive enabled ultra-quiet, smooth pump operation, and the high-efficiency PFC delivered excellent EMC performance—allowing us to pass stringent EU regulatory certification on the first submission.”

U.S. Premium Air Conditioner

PFC + Driver Board Case

“Our high-end AC program required exceptional energy efficiency and low acoustic performance. Hunovate’s high-efficiency PFC and FOC drive solution delivered jointly optimized results—achieving leading system-level efficiency while reducing operating noise to a remarkably low level that meets our flagship-grade requirements.”

Welling Motor

Driver Board Case

“As a motor manufacturer, precise drive matching is critical for us. Leveraging its Golden Sample Library, Hunovate quickly identified the optimal parameters, and the customized FOC algorithm fully brought out our motor’s performance. Their rapid response and results exceeded our expectations.”

HILTI Concrete Vibrator

PFC + Driver Board Case

“HILTI equipment demands exceptional reliability. Hunovate’s high-power PFC supply provided a stable power foundation, while the driver board’s algorithms—optimized for impulsive loads—enabled the system to pass rigorous shock and endurance testing, demonstrating outstanding industrial-grade reliability.”

U.K. Lawn Mower

Driver Board Case

“Our commercial high-power lawn mower operates under highly dynamic load conditions. Hunovate’s driver board, with its outstanding torque control and dynamic load handling, ensured consistent power and efficiency across all scenarios. Their professionalism and delivery speed from design to mass production were impressive.”

BLDC Motor Functional Run Test Device for AIP

Driver Board Case

“This BLDC Motor Drive-Based Functional Test Device is integrated as a core module in our standard motor testing system. Its one-button operation enables non-specialist operators to perform accurate tests, while the stable FOC algorithm reliably detects acoustic anomalies and related faults—together providing an efficient, reliable, and standardized testing solution for automated production lines.”

Benefits

Core Technologies
• Multi-Mode Control: Cooling, heat pump, hot-water, and electric heating functions integrated in one board.
• Advanced EEV Control: 12-bit PWM output for precise refrigerant flow regulation.
• Smart Defrost Algorithm: Adaptive defrost for stable heating performance in low ambient conditions.
• Full DC Fan Control: Compatible with 3-speed tapping or PWM inverter motors.
• Global Power Supply: Supports both AC 110V and 220V, 50/60Hz ±5% for worldwide deployment.
• Comprehensive Protection: Under/over-voltage, overcurrent, short-circuit, and refrigerant loss protection.
• Remote Firmware Upgrade: Easy software updates for field maintenance and version optimization.
• Industrial-Grade Reliability: IP54 protection (conformal coating), salt-spray resistant.

Why Choose Our Inverter PTAC Main Control Board
✅ Professional HVAC Control Expertise — Over 10 years of experience in BLDC motor drives, inverter HVAC, and heat pump control systems.
✅ OEM/ODM Customization — Firmware, communication protocol (Modbus RTU), and interface design can be tailored to your product requirements.
✅ Energy Efficiency First — Adaptive PID + optimized defrost control delivers up to 12% energy savings compared with traditional solutions.
✅ Compact, Robust, Reliable — Compact 120×80×20 mm design, IP54 protection, and long service life ensure maximum system uptime.

Specs


Category	Parameter	Specification
Input	Rated Operating Voltage	AC 220 V / AC 110 V
		Power Frequency	50/60 Hz ± 5%
		Digital Inputs	Water flow switch (hot water), high-pressure switch, low-pressure switch
		Temperature Sensor Type	NTC 5 kΩ ± 1% (Beta 3470 K)
		Sensor Inputs	6 channels (Discharge / Evaporator / Condenser / Ambient / Return Air / Supply Air)
Output	4-Way Reversing Valve	5 A relay
		Base Pan Heater	5 A relay
		Temperature Measurement Range	–30 °C ~ +99 °C
		Temperature Control Accuracy	±0.5 °C (–10 °C ~ +50 °C)
		Fan Control Mode	3-speed tapping / PWM speed control
		Electronic Expansion Valve	1 × PWM (12-bit)
Protection	Input Under-/Over-voltage	Shutdown at < 160 V / > 280 V
		Output Overcurrent	Self-recovering fuse (relay port)
		Short-Circuit Protection	Self-recovering fuse on output
		Refrigerant Loss Protection	Shutdown at pressure < 0.08 MPa
Environmental	Operating Temperature	–30 °C ~ +70 °C
		Operating Humidity	≤ 85% RH (non-condensing)
		Storage Temperature & Humidity	–40 °C ~ +85 °C, ≤ 85% RH (non-condensing)
		Salt Spray Resistance	48 h (ASTM B117)
Others	Control Algorithm	Adaptive PID + Defrost Optimization
		Communication Protocol	RS485 (Modbus RTU)
		Protection Level	IP54 (with conformal coating)

Download full datasheet (PDF)

Applications

Applications
– Inverter PTAC (Packaged Terminal Air Conditioner) systems for hotels, motels, hospitals, and residential buildings.
– HVAC and heat pump systems requiring precise EEV and fan speed control.
– OEM/ODM projects seeking UL, CE, and KC certified control solutions.
– PTAC retrofits and custom energy-saving system upgrades.
Target Market: North America / Canada / Mexico,etc.

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Form

MOQ：500-1000 pcs or Negotiable
Lead time：3–5 weeks for custom tuning
OEM/ODM：Yes
Engineering support：Yes（schematic review + parameter tuning）

Please fill out the form below with your details and inquiry. One of our representatives will get back to you within 24h.

About

Manufacturing

A national high-tech enterprise specializing in the research, development, production, and sale of smart motor driver & controllers.

R&D Experience

20+

Years

Total Employee

300+

Person

Area

12,000+

m²

Annual Capacity

10,000,000+

PCS

Production Workshop

Dedicated Smart Motor Driver & Controller Manufacturing Base

Step into our core production zone. Equipped with specialized SMT Clean Rooms and DIP Assembly Workshops, stringent environmental controls and standardized operating procedures ensure the stable output of over 10 million smart controller units annually and maintain consistent foundational quality.

DIP Assembly Workshop

Automation Line 2

Automation Line 1

SMT Clean Room 1

SMT Clean Room 2

Tablet Production Line

Our Partner

Backed by over 20 years of experience from our sister company "Ghonestar Technology" in distributing key electronic components—including MCUs, MOSFETs, IGBTs, IPMs, sensors, and optocouplers—Hunovate has built a resilient supply chain that connects leading international brands with high-quality domestic manufacturers. Through this dual-track procurement strategy, we maintain multiple qualified options for critical components, secure competitive pricing, and gain direct access to manufacturer-level technical support, ensuring high reliability and continuous innovation across our solutions.