Start Up, Wiring | Watlow Electric 316-42-15-1 guide

WATLOW IND. WATROD Modular Duct Heater Installation & Maintenance Manual

I&M NUMBER: 316-42-15-1	Page: 4
Date:6/11/2008	Rev: 2

_________________________________________________________________________________________________________________________________________________________________________________________________________________________

______

When installed horizontally the user must determine whether the duct wall has sufficient strength to support the unit by the flange only. A frame may be necessary to support the unit in the duct. This frame can have tapped holes or captive nuts to receive mounting bolts. An access panel in the duct can facilitate installation.

DANGER: HAZARD OF FIRE. Electric heaters are capable of developing high temperatures so extreme care should be taken to locate heaters in safe environments. Mounting heaters in atmospheres containing combustible gases and vapors should be avoided. According to article 501 of the NEC, the maximum surface temperature of the heater shall not exceed 80 % of the auto-ignition of the surrounding atmosphere when the heater is continuously energized. Care should also be taken to keep combustible materials far enough away to be free of the effects of high temperatures.

5. Wiring

WARNING; HAZARD OF ELECTRIC SHOCK. Any installation involving electric heaters must be grounded to earth to eliminate shock hazard.

Electrical wiring to the heaters must be installed in accordance with the National Electric Code and any state and local electrical code by qualified personnel.

Consult wiring diagram supplied with the unit for correct feeder wires connections. If one is not supplied, the factory should be consulted for the appropriate wiring diagram. Feeder wire should be properly selected based on amperage, electrical power rating, ambient temperature, and type of environment. Feeder wire should also be housed in either rigid or flexible conduit which carries the same classification as the heater enclosure. It is the users responsibility to properly size and install feeder wire.

Feeder wire line connections may be made directly to stud terminals or box type compression fittings. Box type compression fittings will accept a #4 AWG maximum wire while stud terminals will accept a #10 ring connector(T&B, Amp, etc.). It is essential that these connections be tight. Stud terminals should be tightened to a maximum torque of 20 in-lbs while the bottom nut is supported. Ground connection (color coded "green") is supplied inside the housing for ground wire.

Line voltage must be equal to or less than rating stamped on the heater assembly.

The power circuit is required to include a branch circuit overcurrent protective device, a disconnect and a secondary thermal cut-out with manual reset. The control circuit should include the temperature controller, the primary thermal cut-out and an interlock with the fan motor. One method to do this is with a pressure air flow switch. It will open the control circuit and de-energize the heater when any circumstance prevents sufficient air flow through the heater.

The air handler should be set up to run on a time delay after the heater is de energized. The correct time delay will depend on the blower rating, amount of duct insulation, and the total power output of heaters(s). The time delay allows the elements to cool and prevents overheating the adjacent duct and terminal areas.

Start Up

Before energizing the heater the following items should have been checked with the heater power disconnected:

1.Electrical termination is tight and wiring is per wiring diagram supplied with heater

2.Proper disconnecting means and fusing have been installed

3.The voltage rating of the heater is the same as that being applied

4.Megohm is within acceptable limits

5.Proper temperature controls and safety limiting devices are in place

6.Heater is securely installed in duct

WATLOW IND.n # 6 INDUSTRIAL LOOP RD. n HANNIBAL MO, 63401n PHONE 314-221-2816 n FAX 314-221-3723

316-42-15-1 specifications

Watlow Electric is known for its innovative solutions in thermal management and advanced heating technologies. One of their notable products is the Watlow 316-42-15-1, an integral component designed for demanding industrial applications.

The Watlow 316-42-15-1 heater is constructed from high-quality materials, specifically suited for environments where durability and efficiency are paramount. The heater features a stainless steel housing, which offers excellent resistance to oxidation and corrosion. This characteristic makes it ideal for use in industries such as food processing, pharmaceuticals, and chemical manufacturing, where exposure to harsh conditions is common.

One of the main features of the Watlow 316-42-15-1 is its optimized heating element. Leveraging advanced technology, the heating element is engineered to provide uniform heat distribution, ensuring that the target medium is heated consistently. This uniformity is critical for processes that require precise temperature control, as it helps minimize temperature fluctuations that could compromise the quality of the end product.

Moreover, the 316-42-15-1 is designed with energy efficiency in mind. Its advanced thermal conductivity allows for quick heating times, reducing energy consumption while enhancing operational effectiveness. This efficiency is further complemented by a built-in thermocouple well, which facilitates accurate temperature monitoring and ensures that the system can respond swiftly to changes in temperature.

Another notable characteristic of this heater is its versatility. The Watlow 316-42-15-1 is available in various configurations, making it suitable for a wide range of applications. With customizable lengths, watt densities, and power ratings, this heater can be tailored to meet specific operational requirements, ensuring optimal performance in diverse settings.

In addition to its impressive physical attributes, the Watlow 316-42-15-1 boasts advanced control capabilities. It can be integrated easily with various control systems, providing users with real-time feedback and precise control over their heating processes. This integration is essential for maintaining compliance with industry standards and ensuring the safety of operations.

In conclusion, the Watlow Electric 316-42-15-1 is a robust and efficient heating solution designed for industrial applications that demand reliability and performance. Its stainless steel construction, advanced heating technology, energy efficiency, and versatility make it an excellent choice for businesses looking to optimize their heating processes. By investing in the 316-42-15-1, companies can enhance productivity, ensure product quality, and maintain operational excellence.