10-40

(e)Blower speed rotation must to be monitored to ensure proper control of input modulation. System will lock out gas valve operation if proper blower speed is not detected.

(f)A secondary combustion air safety, in addition to blower speed monitoring, utilizing a mechanical pressure differential switch, must be used with each blower to ensure combustion air is entering the pre-mix blower properly.

(g)Modular heat exchanger shall be easily removable through unit sidewall.

(h)Removable cover at front of unit facilitates easy cleaning (when applicable) with complete access to tank and heat exchanger surfaces.

(6)Automatic water level control within a separate float chamber, isolated from the boiling action, to prevent false water level indication.

(a)Fill rate must modulate to match capacity demand to ensure consistent output. Fill cycles based on low water only is not acceptable.

(b)System shall fill through the bottom of the tank to reduce steam-quenching effect and noise level. Filling at top of the tank is not acceptable.

(c)Unit water level is to be continuously monitored with a dual magnetic electronic float system, located outside of the boiling water to ensure accurate water level control and reduced maintenance. Cool fill water is to be supplied into the sensing chamber to keep the device cool. Systems using conductivity probes or floats located within hot reservoir water are not acceptable.

(d)Tank and float chamber to be separated with a minimum of 1" (25 mm) rigid insulation, minimizing potential scale build up on float mechanisms, due to heating of the contained water.

(e)Humidifier shall have a dual fill valve to feed water to the tank and float chamber, to reduce scaling and mineral build up on the magnetic floats.

(f)Float chamber to include LED indication of five possible water level indications.

(g)Ongoing self-diagnostics including periodic float operation and fill/drain rate verification.

(h)Positive drainage/blow-down using a drain pump, drawing water from the bottom of the tank, maximizing mineral evacuation (when applicable). Skimmer not acceptable.

(i)Blow down interval shall be based on actual steam production, and must be adjustable to compensate for all water conditions, to ensure maximum energy and maintenance efficiency.

(j)Pre-cleaning flushing feature shall be provided to reduce maintenance time.

(k)Must include end of season blow-down feature to evacuate contained water and minerals after 72 hours with no demand for humidification.

Page 33 2008-10-01

GSTC Indoor, GSTC Outdoor, GSP Indoor specifications

Nortec Industries has emerged as a leader in the development of high-performance HVAC systems, providing innovative solutions tailored to meet diverse climate control requirements. Among their stellar offerings are the GSTC Outdoor, GSP Indoor, and GSTC Indoor units, each designed to enhance comfort and energy efficiency in commercial and residential settings.

The GSTC Outdoor unit is a top-tier outdoor condensing unit engineered for optimal heat exchange and energy conservation. One of its main features is the advanced scroll compressor technology, which ensures quieter operation while maintaining high efficiency. The unit comes equipped with an integrated microprocessor that intelligently manages system performance, allowing for improved diagnostics and enhanced reliability. The GSTC Outdoor also boasts a weather-resistant cabinet designed to withstand harsh environmental conditions, making it ideal for various outdoor installations.

Complementing this outdoor unit are the GSP Indoor and GSTC Indoor systems, both of which prioritize individualized comfort and energy efficiency. The GSP Indoor unit employs a compact design that fits seamlessly into tight spaces while delivering exceptional airflow. Its multi-speed fan feature enables precise control over air distribution, catering to diverse user preferences. Additionally, the GSP Indoor incorporates a high-efficiency filter system that captures airborne contaminants, promoting indoor air quality.

On the other hand, the GSTC Indoor unit stands out with its versatility. Designed for both heating and cooling applications, it integrates seamlessly with the GSTC Outdoor unit for a complete HVAC solution. Key characteristics of the GSTC Indoor include its quiet operation and energy-efficient heating elements, which operate effectively even in low-temperature scenarios. Furthermore, this unit features advanced refrigerant technologies that maximize performance while minimizing environmental impact.

Both the GSP Indoor and GSTC Indoor units are equipped with smart connectivity options, allowing users to monitor and control their climate settings remotely via mobile applications. This feature not only enhances user convenience but also contributes to energy savings by enabling precise temperature adjustments.

In summary, Nortec Industries' HVAC offerings—the GSTC Outdoor, GSP Indoor, and GSTC Indoor units—are designed with state-of-the-art technology and user-centric features. These systems not only deliver unmatched performance and efficiency but also prioritize sustainability and indoor comfort, setting a benchmark in the HVAC industry. Whether for residential or commercial applications, Nortec’s products provide reliable solutions for a variety of climate control needs.