Specifications

General: Heating and Ventilating unit shall be as manufactured by Greenheck or approved equal provided all specifications are met. Greenheck Model IGX-HV is used as the basis of design. Performance shall be as scheduled on plans.

Furnace: Indirect gas fired furnace shall be 80% efficient, ETL Listed and have a blow through fan design. Furnace shall be capable of operation with Natural or LP gas and have a power venting system with post purge cycle. The heat exchanger shall be constructed of aluminized steel or stainless steel. Standard furnace features shall include main gas pressure regulator, main gas valve, electronic staged controls, direct spark ignition system, high limit and a 24 volt control transformer. Furnace shall be insulated and have double wall construction.

Temperature Control: Heating and cooling output shall be controlled by a room thermostat to maintain desired room temperature. Economizer control shall provide the first stage of cooling, where specified. Furnaces shall provide one or two stages of heat output control.

Unit Casing and Frames: All frames and panels shall be G90 galvanized steel. Where top panels are joined there shall be a standing seam to insure positive weather protection. All metal-to-metal surfaces exposed to the weather shall be sealed, requiring no caulking at job site. All components shall be easily accessible through removable doors.

Insulation: Models provided with a mixing box shall be insulated from the return section through to the supply discharge. Insulation shall be in accordance with NFPA 90A and tested to meet UL 181 erosion requirements. Double wall shall be provided if specified.

Fan Section: Centrifugal fans shall be double width, double inlet. Fan and motor shall be mounted on a common base and shall be internally isolated. All blower wheels shall be statically and dynamically balanced. Ground and polished steel fan shafts shall be mounted in permanently lubricated ball bearings (up to size 118) or ball bearing pillow blocks (size 120 and larger). Bearings shall be selected for a minimum (L10) life in excess of 100,000 hours at maximum cataloged speeds.

Motors and Drives: Motors shall be energy efficient, complying with EPACT standards, for single speed ODP and TE enclosures. Motors shall be permanently lubricated, heavy duty type, matched to the fan load and furnished at the specified voltage, phase and enclosure. Drives shall be sized for a minimum of 150% of driven horsepower. Pulleys shall be cast and have machined surfaces, 10 horsepower and less shall be supplied with an adjustable drive pulley.

Electrical: All internal electrical components shall be prewired for single point power connection. All electrical components shall be UL listed, recognized or classified where applicable and wired in compliance with the National Electrical Code. Control center shall include motor starter, control circuit fusing, control transformer for 24 VAC circuit, integral disconnect switch with separate motor fusing and terminal strip. Contactors, Class 20 adjustable overload protection and single phase protection shall be standard.

Filter Section: Filters shall be mounted in a V-bank arrangement such that velocities across the filters

do not exceed 550 feet per minute. Filters shall be easily accessible through a removable access panel.

Weatherhood: Weatherhood shall be mist eliminating type, constructed of G90 galvanized steel. The weatherhood shall contain drainable blade louvers, backed by mist eliminating filters to prevent moisture intake.

Mixing Box: Mixing box shall contain outside air and return air dampers with low leak, pressure activated, extruded vinyl blade seals, aluminum jamb seals, Belimo actuator and 30% efficient pleated filters in a V-bank arrangement. The mixing box shall modulate the amount of outdoor and return air by use of dampers. Input signal for return damper shall be from potentiometer, 2-10 volt signal, 4-20 mA signal or manual quadrant controller.

Evaporative Cooling Section: Evaporative cooling section shall include a galvanized steel housing with louvered intake, two inch aluminum mesh filters and a stainless steel evaporative cooling module all provided by the make-up air unit manufacturer. The louver shall be stationary type with drainable blades, designed to withstand wind loads of 25 PSF and bear the AMCA seal. Evaporative cooling media shall be Munters CELdek with a depth of 12 inches for a cooling effectiveness of 90%. Drain and overflow connections shall be piped through the side of the evaporative cooling section.

Cooling Coil: Direct expansion (DX) or chilled water coil shall be factory tested and rated in accordance with ARI 410. Coils shall have copper tubes with permanently expanded aluminum fins, 12 fpi or less. DX coils shall be equipped with distributors to receive expansion valves at the liquid connections. Drain pans shall extend at least 12 inches downstream of coil and be sloped to drain connection.

IGX-HV specifications

The Greenheck Fan IGX-HV is a groundbreaking product tailored for high-volume, low-pressure ventilation applications. Engineered for optimal performance, the IGX-HV series stands out in the market due to its design and technology, which are focused on delivering efficient airflow solutions while ensuring energy conservation.

One of the key features of the IGX-HV is its robust construction, which includes a galvanized steel housing that offers durability and resistance to corrosion. This is particularly important in environments where the fan may be exposed to harsh conditions. The fan is designed with an integrated mounting system that simplifies installation and provides long-term reliability.

In terms of performance, the IGX-HV is equipped with Greenheck's innovative EHX™ motor technology, which enhances efficiency and reduces energy consumption. This permanent split capacitor motor is designed to operate at optimal levels, contributing to lower operational costs. Additionally, the fan is available in a range of sizes and configurations, catering to the diverse needs of commercial and industrial applications.

The IGX-HV also features a backward-inclined wheel that contributes to its high efficiency and reduced noise levels. This design not only increases performance but also minimizes turbulence, creating a quieter operating environment. The fan’s aerodynamic profile ensures that it can handle large volumes of air, making it ideal for use in spaces such as warehouses, manufacturing facilities, and large retail environments.

Another notable characteristic of the Greenheck IGX-HV is its user-friendly interface, which provides easy access to control and monitoring systems. This allows facility managers to easily adjust settings and track performance metrics, streamlining maintenance processes and enhancing operational efficiency.

Moreover, the IGX-HV complies with the latest energy efficiency standards, making it a sustainable choice for businesses looking to minimize their environmental impact. By integrating advanced technologies, such as variable speed drives, the fan can adjust its performance based on the actual demand, further optimizing energy usage.

In summary, the Greenheck Fan IGX-HV is a versatile and efficient solution for high-volume ventilation needs. Its combination of durable construction, advanced motor technologies, and user-friendly features makes it an excellent choice for a variety of applications, positioning it as a leader in the ventilation industry. Whether for industrial or commercial use, the IGX-HV meets the demands of modern ventilation systems while emphasizing energy efficiency and performance.