Set the Unit’s Operating Temperature

Set the operating temperature. The operating temperature setting depends on which Maxitrol controller is used.

Maxitrol Series 14 – 8 Terminals: The Maxitrol Series 14 should be set to the desired discharge temperature mode. Place dipswitch in the “UP” position for local control and in the “DOWN” position for remote control. Keep LFST dipswitch in the “UP” position at all times for 10 second delay.

Fig. A is required for remote control.

	Terminal 3 - Remove wire to
	send unit into maximum fire.
Discharge			Low fire
temp			setting
temp			setting
dipswitch			(LFST)
		dipswitch

	Set the discharge temp					Fig. A
	Set the discharge temp
	Typical: 65°F
	Typical: 65°F					Remote
	Minimum: Typical: 55°F					Remote
	Minimum: Typical: 55°F					controller
	Maximum: Typical: 90°F					controller
	Maximum: Typical: 90°F
	Maxitrol Series 14 — 8 terminals

	Maxitrol Series 44 – 9 Terminals: The Maxitrol
	Series 44 should
	Series 44 should
	be set to the	Set the space
	desired discharge	Set the space
	desired discharge	temperature
	temperature.	Typical: 70ºF
	The temperature
	selector is a stand-
	alone dial. The
	stand-alone dial	Series 44 Temperature Setting
	may be mounted	Series 44 Temperature Setting
	may be mounted	(shown as space temperature control)
	remotely.	(shown as space temperature control)


	Minimum discharge	Terminal 3 - Remove wire to
	temperature setting	send unit into maximum fire.
	(Typical: 50ºF)

Low fire time delay setting	Maximum discharge
(75% of maximum)	temperature setting
	(Typical: 100ºF)

Maxitrol Series 44 — 9 terminals

18Model VSU Make-Up Air

Maxitrol SC25S: The SC25S is an analog signal converter that will change a 0-10 VDC or a 4-20 mA control signal provided by an owner supplied Building Management System into an output level capable of driving one or more modulating gas valves. The SC25S also limits the minimum and maximum discharge

air temperatures. Reference the unit-specific wiring diagram and Maxitrol data sheets included in the IOM packet.

Maxitrol SC25S

Flame Signal Check - Pilot Ignition

To measure the flame signal connect a standard DC voltmeter to the flame amplifier test jacks + and - (com) as shown to the

right. The flame signal should be above 1.25 VDC and steady.

	Check the flame
	signal with the
	burner at pilot only,
	minimum fire, mid	DC Voltmeter and
	fire and high fire.	DC Voltmeter and
	fire and high fire.	Flame Amplifier

Important

If the flame signal is not above 1.25 VDC and steady, consult the troubleshooting section.

470654 specifications

Greenheck Fan 470654 is a cutting-edge ventilation solution designed to meet the demanding requirements of commercial and industrial applications. Renowned for its reliability and efficiency, this fan model integrates advanced technologies and engineering to provide optimal air movement and control.

One of the standout features of the Greenheck Fan 470654 is its robust construction. Designed with high-quality materials, the fan promotes longevity and durability, making it suitable for use in tough environments. This fan features a heavy-gauge steel housing that minimizes vibration and enhances noise reduction, contributing to a quieter operation, a critical factor in maintaining a serene working environment.

The fan is equipped with a powerful motor that ensures efficient airflow, achieving high performance while consuming minimal energy. This energy efficiency is emphasized through the use of advanced motor technology, including variable frequency drive (VFD) compatibility. VFDs allow for precise control of the fan speed, enabling adjustments based on system demand, thus significantly reducing energy consumption and operating costs.

In terms of airflow performance, the Greenheck Fan 470654 is engineered to provide a high volume of air movement while maintaining static pressure. Its aerodynamic design minimizes resistance, enhancing overall efficiency. The fan is designed to operate across a range of static pressures, making it versatile for different applications, from commercial kitchens to large manufacturing facilities.

Additionally, the fan's installation is straightforward, thanks to its user-centric design. The model incorporates mounting brackets and options for various duct configurations, ensuring seamless integration into existing systems. Maintenance is also made easier with accessible components, allowing technicians to perform regular checks and upkeep without extensive downtime.

Safety features are a priority in the design of the Greenheck Fan 470654. It includes protective features such as thermal overload protection to prevent motor damage and extend operational life. The fan's design also adheres to industry standards and regulations, providing peace of mind for users.

In summary, the Greenheck Fan 470654 is a well-engineered solution that combines durability, efficiency, and advanced technology to deliver superior performance in ventilation applications. With its powerful motor, energy-saving capabilities, and ease of installation and maintenance, it stands out as a reliable choice for professionals seeking optimal airflow management.

Greenheck Fan 470654 Set the Unit’s Operating Temperature, Flame Signal Check Pilot Ignition

Models: 470654