Mounting, Wiring | Chromalox UB-4502A, UB-3502A, UB-4002A, UB-5002A

IMPORTANT

Do not mount mercury type thermostat directly on unit. Vibration could cause heater to malfunction.

The heater must be mounted at least 7’ above the floor to prevent accidental contact with the heating elements or fan blade which could cause injury.

Keep at least 5’ clearance in front of the heater. Refer to Figures 1 and 2 for side, top, and back clearance requirements.

The wall or ceiling mounting structure and the anchoring provision must be of sufficient strength to support the combined weight of the heater and mounting bracket. (Refer to Table A for weights of heater and bracket).

Fan blade rotation must be checked. If airflow is not moving out through the louvers, interchange any two of the three customer power leads on three-phase units only.

MOUNTING

WARNING: Hazard of Electric Shock. Disconnect all power before installing heater.

WARNING: These heaters are designed for wall or ceiling mount- ing only. Other modes of mounting voids factory warranty.

1.Height above floor

A.In areas where ceiling height is more than 12 feet, recom- mended mounting height is approximately 10 feet to under- side of heater.

B.For ceiling heights of 12 feet or less, maximum mounting height is determined by use of ceiling mounting brackets

offered with these heaters. Minimum spacing to ceiling is 14-1/4”.

C.In either case the minimum mounting height is 7 feet from floor to bottom of heater. (See Figures 1 and 2.)

2.Spacing to adjacent walls

A.Rear of case to back wall 11” minimum.

B.Side of case to side wall 12” minimum.

3.If two or more units are operated in the same enclosed space, their discharges should be directed to aid in development of mass air movement for uniform heat dispersal.

4.Controlling thermostats to individual heaters should be mount- ed at shoulder height on inside walls or columns.

WIRING

Note: All wiring should be done in accordance with local codes and the National Electrical Code by a qualified person.

WARNING: Hazard of Electric Shock. Any installa- tion involving electric heaters must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard.

1.Connect heater according to the voltage and frequency speci- fied on the nameplate and using the appropriate wiring diagram (Figures 3 thru 14).

Note: Be sure to check the voltage rating of the fan motor since it is not necessarily the same as the heater circuit.

2.If an external transformer is used to step down the voltage for operating the fan motor, use appropriate wiring diagram (Figures 7 thru 14).

3.Heaters are not provided with a control switch and should be controlled by externally mounted disconnect switches and/or separately mounted thermostat and control switch as recom- mended in appropriate wiring diagrams (Figures 3 thru 14). Key to proper wiring diagram is the part number (P/N) of inter- nal wiring diagram located on inside of the hinged cover of the terminal box.

4.Protection against overheating is provided by an internal auto- matic thermal cutout which opens the electric circuit if the nor- mal air-flow is restricted or stopped. Cutout automatically energizes heater on removal of the obstruction.

UB-5002A, UB-4502A, UB-4002A, UB-3502A specifications

The Chromalox UB series electric unit heaters, including models UB-4002A, UB-3502A, UB-4502A, and UB-5002A, represent advanced heating solutions designed for various industrial and commercial applications. Known for their exceptional efficiency and reliability, these unit heaters utilize cutting-edge technologies to provide effective temperature control in environments such as warehouses, manufacturing facilities, and workshops.

One of the main features of the UB series is their robust construction. Built with high-quality materials, these heaters are designed to withstand demanding conditions while providing consistent performance. The units are equipped with durable electric heating elements that ensure optimal heat transfer and longevity, minimizing maintenance needs. The housing is often made from corrosion-resistant materials, which extends the lifespan of the units, especially in humid or chemically harsh environments.

The technological innovations in the UB series include an energy-efficient design that promotes lower operational costs. These heaters feature adjustable airflow settings, allowing users to customize heating output based on specific needs. The heaters can be controlled using built-in thermostats or remote control systems, providing flexibility and convenience for operation. Compatibility with automation systems further enhances their versatility, allowing for integrated climate management in larger facilities.

Each model in the UB series offers various wattage options, enabling users to select an appropriate size for their space. For instance, the UB-4002A typically provides around 4000 watts of heating power, while the UB-5002A may deliver upwards of 5000 watts. This scaling allows businesses to effectively heat spaces of different dimensions and insulation levels.

Another critical characteristic of the UB series is their quiet operation, making them suitable for sensitive environments where noise levels must be kept to a minimum. The design also incorporates components that reduce vibration, contributing to a peaceful working atmosphere.

Safety features are paramount in the UB series, which include built-in over-temperature protection and automatic shut-off capabilities. These mechanisms ensure that the units operate without risk, providing an essential safety net in various applications.

In summary, the Chromalox UB-4002A, UB-3502A, UB-4502A, and UB-5002A electric unit heaters are engineered to deliver efficient, reliable heating solutions tailored for industrial use. Their robust construction, energy-efficient technologies, and focus on user safety make them a preferred choice for companies seeking to enhance their heating solutions. With adjustable features and a variety of power outputs, these heaters adapt seamlessly to the diverse needs of various commercial settings.