Spotlight on the Tranquility® 18 (SR) Series

If you're managing commercial HVAC projects, you know how important it is to balance performance, reliability, and long-term value. The Tranquility® 18 (SR) Series is designed with service managers, project managers, and estimators in mind—offering features that simplify installation, streamline maintenance, and keep building occupants comfortable year-round.

Whether you're tackling new construction, retrofits, or upgrades, this versatile water-source heat pump offers the efficiency and flexibility your projects demand. Here’s how the SR Series helps your team get the job done right.

Smarter System Management with iGate® 2 Controls

The Tranquility® 18 (SR) Series comes equipped with iGate® 2 Smart Controls, giving you remote access to system diagnostics and performance adjustments. From a mobile app or web interface, you can quickly identify issues, make tweaks, and reduce the risk of downtime. That means fewer service calls and more predictable maintenance schedules.

Designed for Quieter Operation

Noise concerns can derail a project’s success, especially in occupied spaces like offices, classrooms, and hotels. With scroll compressors mounted on double isolation, the SR Series keeps sound and vibration levels impressively low. This design reduces tenant complaints and helps you deliver a more comfortable environment.

Installation Flexibility for Tight Schedules

Every project has its share of space constraints and mechanical room surprises. The Tranquility® 18 (SR) Series offers both horizontal and vertical cabinet configurations, along with field-convertible discharge options. This flexibility makes it easier to plan installations—even in tight or challenging locations—without delaying your project timelines.

Enhanced Indoor Comfort with Hot Gas Reheat

Humidity control often gets overlooked, but it’s essential for occupant satisfaction. The Hot Gas Reheat (HGRH) feature lets the SR Series control humidity without overcooling the space. This built-in feature helps you deliver better indoor air quality and comfort while minimizing energy waste.

Proactive Safety Features

The Refrigerant Detection System (RDS)—standard on 5-ton models (SR060) and available on other sizes—detects refrigerant leaks early, supporting proactive maintenance and reducing potential service headaches. Service managers will appreciate the time savings and increased system reliability.

Compact Design for Faster Installations

Mechanical rooms can be tricky, especially in retrofits. The SR Series features a compact cabinet footprint that fits into tight spaces and simplifies the installation process. Field-convertible discharge adds another layer of convenience, helping your team complete projects on time and on budget.

Optional Enhancements for Project Flexibility

Need to customize the system to fit specific project requirements? The Tranquility® 18 (SR) Series offers several optional features:

• Hybrid hydronic heat for added heating flexibility

• BACnet®, Modbus®, and N2 controls for building management system integration

• Cupro-nickel coil options for more challenging water conditions

• An UltraQuiet™ package for additional sound attenuation

Why Service and Project Teams Love the SR Series

The Tranquility® 18 (SR) Series isn’t just another heat pump—it’s a reliable, adaptable solution that makes life easier for your team. From faster installs to smarter service features, this series helps you deliver high-quality results and keep clients happy.

If you're ready to explore how the Tranquility® 18 (SR) Series can support your next project, let’s connect and talk about your needs.