Chilled-Water System Variations

Referred to as “distribution sidestream,” an alternative location is to apply the chiller at the air handler that requires reheat. The heat recovery chiller can cool either the supply or return chilled water. If only a small amount of heating is needed, this may be accomplished with a water-to-water heat pump.

Sidestream heat recovery

A similar situation occurs if a heat-recovery chiller is placed in this sidestream position24 (see Figure 46). This chiller may be equipped with a heat recovery condenser or it could be a standard, single-condenser chiller operating as a heat pump in a heating control mode. The chiller may not be capable of cooling water to the system supply temperature. That is unimportant with this configuration. Think of the machine as a heater instead of a chiller. Its primary function is heating, and cooling is a beneficial by- product. The passing return-chilled-water stream appears as an infinite heat source to the heat recovery chiller. The chiller only cools its evaporator water enough to satisfy the heating demand. This avoids the control predicament of deciding how to reject surplus condenser heat when the cooling and heating loads of a chiller do not strike a perfect heat balance.

Figure 46. Heat recovery chiller in sidestream position

50.2°F

[10.1°C]

Off
40°F	Chilled
[4.4°C]	Water
	Production
900 gpm [56.8 L/s]
40°F [4.4°C] 75 gpm

51.2°F	Bypass Line
[10.7°C]	Bypass Line
[10.7°C]	42.7°F [5.9°C]
	42.7°F [5.9°C]	Heat
		Recovery
		Chiller
56°F
[13.3°C]	300 gpm [18.9 L/s]

Chilled

Water

Distribution

825gpm

[52 L/s]

Sidestream with alternative fuels or absorption

An absorption chiller may be applied in a sidestream location. This allows the chiller to be loaded whenever utility rates make it beneficial. It also ensures that the absorption water chiller receives the warmest entering-water temperature, allowing it to operate more efficiently and produce more cooling.

SYS-APM001-EN

Chiller System Design and Control

SYS-APM001-EN specifications

The Trane SYS-APM001-EN is an advanced control system designed for HVAC (Heating, Ventilation, and Air Conditioning) applications, specifically tailored to enhance energy efficiency and system performance. This comprehensive solution integrates cutting-edge technologies to optimize climate control in commercial and industrial environments.

One of the main features of the SYS-APM001-EN is its intuitive user interface. The system is equipped with a large, easy-to-read display that provides real-time data on system performance, energy usage, and environmental conditions. This user-friendly interface makes it simple for operators to monitor and adjust settings, ensuring optimal comfort levels and efficient energy consumption.

Another key characteristic of the SYS-APM001-EN is its advanced data analytics capabilities. The system collects and analyzes data from various sensors throughout the building, providing insights into occupancy patterns, equipment performance, and energy consumption trends. This data-driven approach allows facility managers to make informed decisions about system adjustments, predictive maintenance, and energy savings.

The SYS-APM001-EN also boasts robust integration capabilities. It can seamlessly connect with a variety of building management systems (BMS) and other third-party devices. This interoperability enables a cohesive operational ecosystem where HVAC systems can communicate and cooperate with lighting, security, and fire safety systems, enhancing overall building efficiency.

Energy efficiency is a hallmark of the SYS-APM001-EN, as it implements sophisticated algorithms to optimize system operation. These algorithms adjust equipment performance in real-time based on current conditions, thereby reducing energy waste and lowering operational costs. The system is designed to support multiple energy-saving strategies, including demand-controlled ventilation and optimal start/stop scheduling.

Additionally, the SYS-APM001-EN is built with scalability in mind, accommodating facilities of various sizes and configurations. Whether it’s a small office building or a large industrial complex, the system can be tailored to meet specific needs, ensuring that HVAC performance aligns with operational goals.

In conclusion, the Trane SYS-APM001-EN is an innovative HVAC control solution that emphasizes user experience, data-driven decision-making, and energy efficiency. With its advanced features and technologies, it is an essential tool for optimizing building performance and enhancing occupant comfort while reducing environmental impact.

Trane SYS-APM001-EN manual Sidestream with alternative fuels or absorption

Models: SYS-APM001-EN