QMX3.P34 Siemens Thermostat

Siemens QMX3.P34 Room Operator Unit – KNX Thermostat with LCD Display

Part Number: S55624-H105-A
Brand: Siemens Building Technologies

Overview

The Siemens QMX3.P34 is a wall-mounted KNX room operator unit designed for precise temperature control in commercial and residential HVAC systems. Featuring a built-in temperature sensor, segmented backlit LCD display, and touch-sensitive keys, this unit offers intuitive user interaction and seamless integration with Siemens DXR Series controllers via PL-Link communication.

Key Features & Benefits

• Integrated Temperature Sensor: Measures ambient temperature with an accuracy of ±0.36°F (±0.2°C) within the 32°F to 122°F (0°C to 50°C) range.

• User-Friendly Interface: Equipped with a full HMI LCD display and capacitive touch keys for easy operation.

• Energy Efficiency Indicators: Includes a “Green Leaf” LED to promote energy-saving practices.

• Advanced Control Options: Supports adjustable temperature control modes, including PWM and modulating control (PID algorithm), suitable for heating, cooling, or combined systems.

• Flexible Operating Modes: Allows switching between Comfort, Pre-Comfort, Energy Savings, and Protection modes via KNX or the display.

• Air Quality Management: Features adjustable setpoints for CO₂ concentration and relative humidity, with configurable switching values for air quality control.

• Fan Control Integration: Supports 1, 2, or 3-stage fan control and 1, 2, or 3-point positioning signals for humidity and CO₂ levels.

• Compact Design: Dimensions of 7″ x 5″ x 3″ (178 x 127 x 76 mm) and an IP30 protection rating make it suitable for various installation environments.

Technical Specifications

Applications

The QMX3.P34 is ideal for:

• HVAC Systems: Integration with Siemens DXR Series controllers for precise environmental control.

• Commercial Buildings: Offices, conference rooms, and other spaces requiring efficient climate management.

• Residential Applications: Smart home systems aiming for energy-efficient temperature regulation.

Why Choose Apex Controls?

• Expertise: Over 30 years of experience in HVAC and building automation solutions.

• Quality Assurance: Genuine Siemens products with full manufacturer support.

• Customer Satisfaction: Dedicated to providing exceptional service and support.

Related Products

• QMX3.P30 Basic Room Sensor

• QMX3.P37 Room Operator with Humidity Control

Note: Ensure compatibility with your existing KNX system and consult with a professional installer for optimal setup.