Electric Heaters
© 2012 Pentair Technical Products PH 763 422 2211 • hoffmanonline.com 87565511
Rev. D
P/N 28359001
English
INTRODUCTION
1. Before installing the electric heater, read these instructions carefully. Failure to follow
these instructions could damage the product or cause a hazardous condition.
2. Check the ratings on the heater label to assure the product is suitable for your
application.
To avoid electric shock and equipment damage, disconnect
any power supplies to the enclosure before installing the
electric heater. Do not energize any circuits before all
internal and external electrical and mechanical clearances
are checked to assure that all assembled equipment
functions safely and properly.
WARNING
GENERAL SAFETY INFORMATION
1. Protect the lead wires from coming in contact with sharp objects, hot surfaces, and/or
chemicals.
2. If continuous operation of the heater is essential to the safe functioning of any other
equipment, adequate warning devices must be installed to assure safe operation at all
times.
Do not use these electric heaters in dusty, dirty, corrosive, or hazardous locations.
Reduce the thermostat from factory setting to a recommended setting not to
exceed 75 F for most applications.
Portions of the heater can get hot. Adequate protection must be taken to protect
people from potential burns and to protect other components from this heat.
Always allow the heater to cool before touching it.
Thermal sensitive devices or materials may need to be located further from the
heater than the minimum recommended distance.
Heaters must not be installed on wood or other combustible surfaces.
This heater must only be installed in a totally enclosed enclosure.
CAUTION
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English
LOCATION AND MOUNTING
1. Hoffman electric heaters should be centered as low as possible in the enclosure for
optimum heat distribution.
2. It is recommended that the heater be installed on a non-combustible metal panel for
optimum performance. It may, however, be mounted on any metal surface.
WARNING: Heaters must not be installed on wood or other combustible surfaces.
3. The heater should be mounted in a vertical position with the terminal block at the
bottom and the air outlet openings at the top as shown.
4. The recommended clearances shown by the shadowed area indicates the space that
should be kept free of components for safe operation of the heater.
WARNING: Heat sensitive components must not be placed above the heater discharge
area.
5. Four 10−32 UNF, self−tapping screws are included for installation.
Vertical Surface Mounting Optional Horizontal Surface Mounting
Watts X D E
DAH1001A, DAH1002A 100 4
5.00 (127 mm) 3.25 (83 mm)
DAH2001A, DAH2002A 200 6
DAH4001B, DAH4002B 400 6
7.00 (178 mm) 3.50 (89 mm)DAH8001B, DAH8002B 800 8
DAH13001C, DAH13002C 1300 8
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English
X
0
18
36
54
72
90
108
0 2 4 6 8 10 12
0
10
20
30
40
50
60
0 51 102 152 203 254 305
100W
200W
400W
800W
1300W
WIRING
Reference Wiring Illustration on page 6
1. All wiring must comply with applicable local codes and ordinances.
2. Connect the heater lead wires to the proper A.C. power source. Power source for 800
and 1300 watt heaters should be continuous.
3. The heater must be properly grounded.
NOTE: Exposed wires should not come in contact with the heater housing.
SETTING THE THERMOSTAT
1. The heater is controlled by an adjustable thermostat. Set the thermostat to the desired
temperature. It is recommended not to exceed 75 F for most applications.
MAINTENANCE
1. Always disconnect power supply before inspecting or working on the heater.
2. Generally the unit requires no maintenance since the fan bearings are permanently
lubricated and sealed.
Temperature Rise vs. Distance Above Heater
Distance Above Heater (mm)
(Minimum
recommended distance
above heater)
Distance Above Heater (in.)
Temperature Rise Above Heater (°F)
Temperature Rise Above Heater (°C)
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English
L1
N
or
L2
M
T
100-800 Watt Schematic
M
L.S.
L1
T
N
or
L2
1300 Watt Schematic
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Wiring Illustration
1
3
2
1
2
3
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PH 763 422 2211 • hoffmanonline.com 87565511
Notes
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Notes
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