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USER’S GUIDE
ASHU SERIES
COMMERCIAL INDUSTRIAL UNIT HEATER
REPLACEMENT COMPONENT LIST INCLUDED
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This unit
complies with
the CSA and
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UL standards
WARNING
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.
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
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
.
IMPORTANT INSTRUCTIONS
, according to the
It corresponds to
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
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For further information or to consult this guide online, please visit our website at www.stelpro.com
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12 1/4"
SPECIFICATIONS AND TECHNICAL DRAWINGS
WARNING
indicated in the installation section.
not turn it on or off when standing in water or if your hands are wet.
Because this unit is hot when in use, it may pose risks even in normal operation. Therefore, be
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
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
products.
Some areas are dustier than others. Thus, it is the user’s responsibility to evaluate if the unit
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
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).
to the limited warranty)
from any adjacent surfaces. Moreover, make sure objects or pieces of furniture such
and when using it. To avoid burns,
based on the amount of dirt accumulated on
SAVE THESE INSTRUCTIONS
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.
SPECIFICATIONS
2 TO 10 k 15 TO 30 k 40 TO 60 k
15’’ / 394 MM 17 5/8” / 448 MM 17 3/4’’ / 451 MM
18 3/4" / 476 MM 22 7/8’’ / 581 MM 27 1/2’’ / 698 MM
12" / 305 MM 16’’ / 405 MM 22 1/4’’ / 565 MM
TECHNICAL DRAWINGS
2 TO 10 kW
10 1/4"
260mm
20 1/4"
514mm
LEFT SIDE
12 1/4"
311mm
18 3/4"
476mm
3 13/16"
97mm
20 1/4"
514mm
FRONT
2
311mm
15 1/2"
394mm
RIGHT SIDE
12 1/16"
307mm
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12 1/4"
16"
TECHNICAL DRAWINGS AND INSTALLATION
TECHNICAL DRAWINGS
15 TO 30 kW
40 TO 60 kW
12 1/2"
317mm
8 3/4"
222mm
24 1/2"
622mm
20 1/4"
514mm
LEFT SIDE
16"
406mm
12 1/4"
311mm
22 3/4"
578mm
FRONT
3 13/16"
97mm
3 5/16"
84mm
24 1/2"
622mm
20 1/4"
514mm
17 5/8"
448mm
RIGHT SIDE
311mm
406mm
15 15/16"
405mm
22 1/4"
565mm
LEFT SIDE
27 1/2"
698mm
FRONT
17 3/4"
451mm
RIGHT SIDE
INSTALLATION
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
near the unit can withstand heat.
8 FT (2.4 M) 2 FT (0.6 M) 6 IN. (15 CM)
10 FT (3.0 M) 2 FT (0.6 M) 6 IN. (15 CM)
15 FT (4.6 M) 6 FT (1.8 M) 12 IN. (30 CM)
walls, preferably an exterior wall exposed to the wind.
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.
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MAINTENANCE, OPERATION
AND REPLACEMENT COMPONENT LIST
ELECTRICAL CONNECTION
electrician, according to the electrical and building codes effective in your region. Consult the wiring plan found on the unit.
MAINTENANCE
If the heater operates under normal conditions, it is not necessary to lubricate
the motor since it has been permanently lubricated.
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.
OPERATION
REPLACEMENT COMPONENT LIST
1
1
1
1
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2 THERMOSTAT KNOB (BLACK)
3 CONTACTOR 30 A 2 POLES 24 V
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3 CONTACTOR 35 A 3 POLES 24 V
3 CONTACTOR 35 A 2 POLES 120 V
3 CONTACTOR 40 A 3 POLES 120 V
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REPLACEMENT COMPONENT LIST
REPLACEMENT COMPONENT LIST
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SHUUMB
SHUUMB3
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11 TRF200025 TRANSFORMER 240/24/25 VA
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11 TRANSFORMER 347/24/25 VA
11 TRF300025 TRANSFORMER 347/240/100 VA
11 TRF320100
11 TRANSFORMER 347/240/200 VA
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11 TRANSFORMER 480/240/25 VA
11 TRF520025
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11 TRF600025 TRANSFORMER 600/24/25 VA
11 TRF600100
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11 TRF620025 TRANSFORMER 600/240/25 VA
11 TRF620100 TRANSFORMER 600/240/100 VA
11 TRF620200 TRANSFORMER 600/240/200 VA
11 TRF620500 TRANSFORMER 600/240/500 VA
11 TRF720250 TRANSFORMER 277/240/250 VA
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TROUBLESHOOTING
TROUBLESHOOTING
The unit does not work
The unit runs continuously
The enclosure is extremely hot
The unit cycles under control of the thermal protection (overheat
indicator)
Overheating
The breaker trips when the heater is turned on
Elements are on, but the motor does not work
The desired room temperature cannot be reached
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).
Open circuit breaker or fuse
The thermal protection has been activated
Faulty connections
Heat losses higher than the unit capacity
Blocked air vents
Blocked air vents
Faulty connections
Voltage higher than that written on the nameplate
One or more elements are defective
Voltage lower than that written on the nameplate
Heat losses higher than the unit capacity
LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY
LIMITED WARRANTY
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
provide the
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.
(consumers). The authorization number must be clearly written on the parcel or it will be refused.
This warranty is exclusive and in lieu of all other representations and warranties (except of title), expressed or implied, and Stelpro expressly disclaims
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
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
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,
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,
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
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
may have other rights which vary from state to state or from province to province.
. Stelpro reserves the right to examine or to ask one of its representatives to
LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY
, Stelpro warrants its products and their components against
and
and
. Any parts
without
LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY
LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY LIMITED WARRANTY
STELPRO DESIGN INC. | Saint-Bruno-de-Montarville | Québec | J3V 6L7
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