STELPRO ASHU Series Commercial Industrial Unit Heater User Guide

STELPRO ASHU Series Commercial Industrial Unit Heater

Product Information

The ASHU Series Commercial Industrial Unit Heater is a powerful heating unit designed for use in commercial and industrial settings. This unit meets CSA and UL standards and comes with a replacement component list. It is important to note that this product must be installed by a qualified professional and connected by a certified electrician.

Specifications

WARNING

Do not install the unit where objects or pieces of furniture could be heat damaged. Respect distances and positions indicated in the installation section. If the installer or the user modifies the unit, he will be held responsible for any damage resulting from this modification, and the CSA certification could be void. This unit must not come into contact with a water source and must be protected from splashes. Do not use it if any part has been immersed. Moreover, do not turn it on or off when standing in water or if your hands are wet. When mounting the unit, make sure that the anchorage used can support the total weight of the unit with the mounting brackets. When cutting or drilling into a wall or a ceiling, do not damage electrical wiring and other hidden utilities. Do not install this product on walls made of synthetic material such as, but not limited to, carpet and wallpaper. When starting up the unit for the first time or after a long period, it is normal that it produces some temporary odours and whitish smoke. Because this unit is hot when in use, it may pose risks even in normal operation.

Therefore, be careful and responsible when using it. To avoid burns, do not let bare skin touch hot surfaces. The unit must cool down for few minutes since it will stay warm for some time after shut down. Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended. Keep the front and and upper sides of the unit at least 3 feet (91 cm) from any adjacent surfaces. Moreover, make sure objects or pieces of furniture such as, but not limited to, blankets, towels, beds, laundry baskets, clothing, papers, electric wires and other flammable items, do not come into contact with the unit and keep them at least 3 feet (91 cm) from the unit. Failure to comply with this warning could lead to a fire. Some materials are more heat-sensitive than others, so make sure those near the unit can withstand heat.

Never block air vents (with objects or other items). You risk damaging the heater and the obstruction could lead to electric shock or overheating, which could result in a fire. Do not insert or allow foreign objects to enter any air vent as this may cause electric shocks, fires, or damages to the unit. This unit has hot and arcing or sparking parts inside. It is not designed to be used or stored in wet areas or areas containing flammable liquids, combustible materials or corrosive, abrasive, chemical, explosive and flammable substances such as, but not limited to, gasoline, paint, chlorine, sawdust and cleaning products. Some areas are dustier than others. Thus, it is the user’s responsibility to evaluate if the unit must be cleaned based on the amount of dirt accumulated on and inside air vents. Accumulated dirt can lead to a component malfunction or discoloration (yellow).

It may cause a fire hazard if not installed and maintained in accordance with these instructions. The thermal protection activation indicates that the unit has been subjected to abnormal operating conditions. If the thermal protection remains activated or activates and deactivates repeatedly, it is recommended that a qualified electrician or a certified repair centre examine the unit in order to make sure it is not damaged. (Refer to the limited warranty). Before unplugging the unit, all controls must be in the “OFF” position and the current from the main breaker panel should be cut. (The general switch may be used also, if included). If the unit is damaged or defective, discontinue use, cut off power supply at circuit breaker and contact a certified electrician or certified repair centre. (Refer to the limited warranty)

Note : When a part of the product specification must be changed to improve operability or other functions, priority is given to the product specification itself. In such instances, the instruction manual may not entirely match all the functions of the actual product. Therefore, the actual product and packaging, as well as the name and illustration, may differ from the manual.

COMMERCIAL INDUSTRIAL UNIT HEATER – ASHU

WATTS| 2 TO 10 kW| 15 TO 30 kW| 40 TO 60 kW
WEIGHT| 32 LB / 15 KG| 60 LB / 27 KG| 95 LB / 44 KG
LENGTH| 15’’ / 394 MM| 17 5/8” / 448 MM| 17 3/4’’ / 451 MM
WIDTH| 18 3/4″ / 476 MM| 22 7/8’’ / 581 MM| 27 1/2’’ / 698 MM
HEIGHT| 12″ / 305 MM| 16’’ / 405 MM| 22 1/4’’ / 565 MM

• Recommended heating capacity must be appropriate for the intended use of the unit
• Unit must be grounded and protected with the appropriate circuit breaker or fuse
• Line voltage must be consistent with that indicated on the unit’s nameplate
• Unit should not be installed where objects or furniture could be heat damaged
• Unit should not come into contact with water sources and must be protected from splashes
• Unit produces temporary odours and whitish smoke when starting up for the first time or after a long period

Technical Drawings

Refer to the product manual on our website for technical drawings and further information.

2 TO 10 kW

15 TO 30 kW

40 TO 60 kW

Product Usage Instructions

Before installing and operating this product, it is crucial to read and understand the instructions provided in the manual. Failure to follow these instructions may result in personal injury, property damage, or voiding of the warranty.

Installation

• Only a qualified professional should install this unit according to electrical and building codes effective in your region
• All screws and electrical terminal connections must be tightly secured before operating the unit after transportation
• The unit must be grounded and protected with the appropriate circuit breaker or fuse according to its nameplate specifications
• Ensure line voltage is consistent with the unit’s nameplate
• Install the unit according to the distances and positions indicated in the installation section of the manual
• Do not install the unit on synthetic material walls like carpet and wallpaper
• Make sure that the anchorage used can support the total weight of the unit with mounting brackets
• Avoid damaging electrical wiring and other hidden utilities when cutting or drilling into a wall or ceiling

N.B. Cut off power supply at circuit breaker/fuse before proceeding to the installation. To reduce the risk of fire, do not store or use gasoline or other flammable vapors and liquids in the vicinity of the heater. Do not mount in contact with combustible material. Do not mount in close proximity to another unit. Keep the front and and upper sides of the unit at least 3 feet (91 cm) from any adjacent surfaces. Moreover, make sure objects or pieces of furniture such as, but not limited to, blankets, towels, beds, laundry baskets, clothing, papers, electric wires and other flammable items, do not come into contact with the unit and keep them at least 3 feet (91 cm) from the unit. Failure to comply with this warning could lead to a fire. Some materials are more heat-sensitive than others, so make sure those near the unit can withstand heat. For best results, the following distances shall be respected when installing these unit heaters

MAXIMUM HEIGHT FROM THE FLOOR| MINIMUM DISTANCE FROM THE FLOOR| MINIMUM DISTANCE FROM THE WALL
---|---|---
2-10 KW MODELS| 8 FT (2.4 M)| 2 FT (0.6 M)| 6 IN. (15 CM)
15-30 KW MODELS| 10 FT (3.0 M)| 2 FT (0.6 M)| 6 IN. (15 CM)
40-60 KW MODELS| 15 FT (4.6 M)| 6 FT (1.8 M)| 12 IN. (30 CM)

1. Avoid directing the airflow from the unit heater towards occupants of the room, beams, poles, machinery and/or against the walls. Instead, try to direct it along the walls, preferably an exterior wall exposed to the wind.
2. When using a wall-mounted thermostat, install it on an interior wall or beam, away from cold airflow, other internal heat sources or the hot air discharge coming directly from the unit heater itself. Make sure to insulate the thermostat when installed on a steel beam.
3. Smaller rooms will generally require one unit heater only. For larger rooms, install several unit heaters in such a way that will promote a peripheral air circulation, as demonstrated on illustrations 1 and 2.

ELECTRICAL CONNECTION
N.B. Cut off power supply at circuit breaker/fuse before proceeding to the installation and wiring connections. This product must be connected by a certified electrician, according to the electrical and building codes effective in your region. Consult the wiring plan found on the unit

Usage

• Do not use this unit outdoors
• Use this heater only as described in the manual; any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons
• Do not let bare skin touch hot surfaces to avoid burns
• Allow the unit to cool down for a few minutes after shut down since it will stay warm for some time
• Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended

For further information or to consult this guide online, please visit our website at www.stelpro.com

IMPORTANT INSTRUCTIONS

Before installing and operating this product, the user and/or installer must read, understand and follow these instructions and keep them handy for future reference. If these instructions are not followed, the warranty will be considered null and void and the manufacturer deems no further responsibility for this product. This product must be installed by a qualified person and connected by a certified electrician, according to the electrical and building codes effective in your region. The following instructions must be adhered to in order to avoid personal injuries or property damages, serious injuries and potentially fatal electric shocks. Make sure that all screws and electrical terminal connections are tightly secured before operating the unit in case they would have loosened during transportation. Protect the heating unit with the appropriate circuit breaker or fuse, in accordance with the nameplate. Make sure the line voltage (volt) is consistent with that indicated on the unit’s nameplate. This unit must be grounded. Switch off the power at the circuit breaker/fuse before installing, repairing and cleaning the unit. Make sure the unit is appropriate for the intended use (if needed, refer to the product catalog or a representative). Use this heater only as described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons. Do not use outdoors.

RECOMMENDED HEATING CAPACITY:
1.25 W/cubic foot (0.03 m³). It corresponds to 10 W/square foot (0.09 m²) based on a standard ceiling height of 8 feet (2.44 m). The recommended capacity is usually sufficient for normal heating needs. Please note that the insulation quality of walls and windows are some of the factors that influence heat losses, which modify the required capacity to heat a room. If needed, refer to a specialist (industrial and commercial buildings) who will be able to calculate these heat losses and optimize the required capacity or consult the “Online heating calculation” section of the Stelpro Design Web site (residential buildings). To heat a large room and to increase your comfort, it is recommended to install several units instead of one. For example, 2 X 1000 W rather than 1 X 2000 W. If the unit capacity is insufficient for the size of the room, it will be in operation continuously, and may become defective earlier and turn yellow.

MAINTENANCE, OPERATION AND REPLACEMENT COMPONENT LIST

MAINTENANCE
N.B. In order for the warranty to be valid, the unit must be cleaned regularly. All other repairs and maintenance other than those described in this guide should be performed by qualified service personnel. In order for the warranty to be valid, the unit must be cleaned regularly. Cut off power supply at circuit breaker/fuse and wait for the unit to cool down before cleaning. If the heater operates under normal conditions, it is not necessary to lubricate the motor since it has been permanently lubricated. Use a soft rag for dusting. When cleaning, use only a damp rag and nonabrasive dish soap. Do not use abrasive or chemical cleaners because they may damage the finishing. If the unit is used in a very dusty location, use a vacuum brush to remove dust and other foreign objects from the grilles. Note that cigarette smoke could yellow the discharge grille and that the best way to prevent it is to clean the unit on a regular basis. Do not use cleaning products identified with these symbols:

N.B. Note that there is electrical current linked to the unit even if the thermostat is set off. This means that there is a risk of electric shock as long as the unit is energized.

OPERATION

Warning : the heater must be properly installed before it is used.

Built-in thermostat: temperature setting ranges from 10°C to 32°C (50°F to 90°F).

REPLACEMENT COMPONENT LIST

TROUBLESHOOTING

The unit does not work

| •  Defective thermostat or wrong thermostat setting

•  Open circuit breaker or fuse

•  The thermal protection has been activated

•  Faulty connections

The unit runs continuously| •  Defective thermostat or wrong thermostat setting

•  Heat losses higher than the unit capacity

The enclosure is extremely hot

| •  Defective thermal protection

•  Blocked air vents

•  Defective motor

The unit cycles under control of the thermal protection (overheat indicator)| •  Blocked air vents

•  Defective motor

Overheating| •  Defective thermostat or wrong thermostat setting

•  Defective motor

The breaker trips when the heater is turned on| •  Faulty connections

•  Voltage higher than that written on the nameplate

Elements are on, but the motor does not work| •  Defective motor

The desired room temperature cannot be reached

| •  One or more elements are defective

•  Defective thermostat or wrong thermostat setting

•  Voltage lower than that written on the nameplate

•  Heat losses higher than the unit capacity

N.B. If you do not solve the problem after checking these points, cut off the power supply at the main electrical panel and contact our customer service (see the “Limited warranty” section to obtain the phone numbers).

LIMITED WARRANTY

This limited warranty is offered by Stelpro Design inc. (“Stelpro”) and applies to the following product made by Stelpro: model ASHU. Please read this limited warranty carefully. Subject to the terms of this warranty, Stelpro warrants its products and their components against defects in workmanship and/or materials for the following periods from the date of purchase: 3 years. This warranty applies only to the original purchaser; it is non-transferable and cannot be extended. CLAIM PROCEDURE If at any time during the warranty period the unit becomes defective, you must cut off the power supply at the main electrical panel and contact 1) your installer or distributor, 2) your service center or 3) Stelpro’s customer service department. In all cases, you must have a copy of the invoice and provide the information written on the product nameplate. Stelpro reserves the right to examine or to ask one of its representatives to examine the product itself or any part of it before honoring the warranty. Stelpro reserves the right to replace the entire unit, refund its purchase price or repair a defective part. Please note that repairs made within the warranty period must be authorized in advance in writing by Stelpro and carried out by persons authorized by Stelpro. Before returning a product to Stelpro, you must have a Stelpro authorization number (RMA). To obtain it, call the customer service department at: 1-844-STELPRO. The authorization number must be clearly written on the parcel or it will be refused.

CONDITIONS, EXCLUSIONS AND DISCLAIMER OF LIABILITY
This warranty is exclusive and in lieu of all other representations and warranties (except of title), expressed or implied, and Stelpro expressly disclaims and excludes any implied warranty of merchantability or implied warranty of fitness for a particular purpose. Stelpro’s liability with respect to products is limited as provided above. Stelpro shall not be subject to any other obligations or liabilities whatsoever, whether based on contract, tort or other theories of law, with respect to goods or services furnished by it, or any undertakings, acts or omissions relating thereto. Without limiting the generality of the foregoing, Stelpro expressly disclaims any liability for property or personal injury damages, penalties, special or punitive damages, damages for lost profits, loss of use of equipment, cost of capital, cost of substitute products, facilities or services, shutdowns, slowdowns, or for other types of economic loss or for claims of a dealer’s customers or any third party for such damages. Stelpro specifically disclaims all consequential, incidental and contingent damages whatsoever.

This warranty does not cover any damages or failures resulting from: 1) a faulty installation or improper storage; 2) an abusive or abnormal use, lack of maintenance, improper maintenance (other than that prescribed by Stelpro) or a use other than that for which the unit was designed; 3) a natural disaster or an event out of Stelpro’s control, including, but not limited to, hurricanes, tornadoes, earthquakes, terrorist attacks, wars, over voltage, flooding, water damages, etc. This warranty does not cover any accidental or intentional losses or damages nor does it cover damages caused by negligence of the user or owner of the product. Moreover, it does not cover the cost of disconnection, transport, and installation. The warranty is limited to the repair or the replacement of the unit or the refund of its purchase price, at the discretion of Stelpro.

Any parts replaced or repaired within the warranty period with the written authorization of Stelpro will be warranted for the remainder of the original warranty period. This warranty will be considered null and void and Stelpro will have the right to refuse any claims if products have been altered without the written authorization of Stelpro and if the nameplate numbers have been removed or modified. This warranty does not cover scratches, dents, corrosion or discoloration caused by excessive heat, chemical cleaning products and abrasive agents. It does not cover any damage that occurred during the shipping. Some states and provinces do not allow the exclusion or limitation of incidental or consequential damages and some of them do not allow limitations on how long an implied warranty lasts, so these exclusions or limitations may not apply to you. This warranty gives you specific legal rights and you may have other rights which vary from state to state or from province to province.

For further information or to consult this guide online, please visit our website at www.stelpro.com

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