Economizer Set-Up, Ignition Module | Trane RT-SVX19A-E4 instruction

Trane RT-SVX19A-E4 manual Economizer Set-Up, ReliaTel Control Heating Operation, Ignition Module

Operation

Economizer Set-Up

Adjusting the minimum position potentiometer located on the unit economizer Actuator (ECA) sets the required amount of ventilation air.

Two of the three methods for determining the suitability of the outside air can be selected utilizing the enthalpy potentiometer on the ECA, as described below:

1.Ambient Temperature - controlling the economizing cycle by sensing the outside air dry bulb temperature. The Table below lists the selectable dry bulb values by potentiometer setting.

2.Reference Enthalpy - controlling the economizer cycle by sensing the outdoor air humidity. The Table below lists the selectable enthalpy values by potentiometer setting.

If the outside air enthalpy value is less than the selected value, the economizer is allowed to operate.

3.Comparative Enthalpy - By utilizing a humidity sensor and a temperature sensor in both the return air stream and the outdoor air stream, the unit control processor (RTRM) will be able to establish which conditions are best suited for maintaining the zone temperature, i.e. indoor conditions or outdoor conditions. The potentiometer located on the ECA is non-functional when both the temperature and humidity sensors are installed.

Table 39 - Potentiometer Setting

Potentiometer	Dry BuIb	Enthalpy
Setting	(°C)	(KJ/kg)

A	23*	63

B	21	58

C	19	53

D	17	51

*Factory Setting

ReliaTel™ Control Heating Operation

When the system switch is set to the "Heat" position and the zone temperature falls below the heating setpoint controlband, a heat cycle is initiated when the RTRM communicates ignition information to the Ignition module (IGN).

Ignition Module

Two Stage (IGN) runs self-check (including verification that the gas valve is de-energized). (IGN) checks the high-limit switches (TC01 & TC02) for normally closed contacts. With 115 VAC power supplied to the ignition module (IGN), the hot surface ignition probe (IP) is preheated for approximately

45 seconds. The gas valve (GV) is energized for approximately

7 seconds for trial for ignition, to ignite the burner.

Once the burner is ignited, the hot surface ignition probe (IP) is de- energized by the ignition module (IGN) and functions as the flame sensing device.

If the burner fails to ignite, the ignition module will make two more attempts before locking out. The green LED will indicate a lock out by two fast flashes. An ignition lockout can be reset by:

1.Opening for 3 seconds and closing the main power disconnect switch

2.By switching the "Mode" switch on the zone sensor to "OFF" and then to the desired position

3.Allowing the ignition control module to reset automatically after one hour.

56	RT-SVX19A-E4

RT-SVX19A-E4 specifications

The Trane RT-SVX19A-E4 is a groundbreaking rooftop unit designed for versatile commercial heating and cooling applications. This model stands out for its innovative technology and robust features, making it a preferred choice for many businesses seeking efficient climate control solutions.

One of the primary characteristics of the RT-SVX19A-E4 is its exceptional energy efficiency. It utilizes advanced variable-speed technology, allowing it to adjust the compressor's output based on real-time demand. This not only reduces energy consumption significantly but also provides more accurate temperature control, enhancing overall comfort within the space. The unit is designed with high-efficiency fan motors and optimized heat exchangers, which contribute to its impressive Seasonal Energy Efficiency Ratio (SEER) and Energy Efficiency Ratio (EER) ratings.

The Trane RT-SVX19A-E4 also features a robust and durable design, built to withstand a variety of weather conditions. Its all-weather cabinet protects the internal components from environmental stresses, ensuring longevity and reliable performance. The unit is equipped with corrosion-resistant materials that enhance its durability, making it suitable for both coastal and urban environments.

Another notable feature is its advanced control system. The RT-SVX19A-E4 comes with Trane's IntelliPak controls, which provide users with precise monitoring and management capabilities. This smart control system enables remote access via internet connectivity, allowing facility managers to monitor performance, adjust settings, and diagnose issues in real-time, improving operational efficiency and reducing maintenance costs.

Additionally, the RT-SVX19A-E4 offers a range of customization options. It can be tailored to meet specific operational needs, with various configurations available for air flow, heating, and cooling needs. This flexibility ensures organizations can find a solution that best fits their requirements, whether it be for an office building, retail space, or industrial facility.

In conclusion, the Trane RT-SVX19A-E4 represents a significant advancement in rooftop HVAC technology, combining energy efficiency, durability, and intelligent controls. Its ability to adapt to varying demands, coupled with customizable options, makes it an excellent investment for businesses looking to enhance their indoor climate while minimizing energy expenses.