12
SPECIFICATIONS FOR ALL 50 HZ MODEL
Nominal kW
2.5
3.7&4.2
6.3&7.5
8.4
12.5&12.6
14.9&16.7
20.9
22.4
Max. Altitude
(ft.)
12,000
8,000
10,000
7,000
10,000
7,000
10,000
7,000
(m)
3,658
2,438
3,048
2,134
3,048
2,134
3,048
2,134
Air Flow @ 70°F (CFM)
700
1450
3000
@ 21°
C (m
3
/hr.)
1189
2463
5096
Horizontal Air Throw (ft.)
25
35
60
(m)
7.6
10.7
18.2
Max. Mounting Height (ft.)
10
10
20
(to underside)
(m)
3.0
3.0
6.1
Motor Power
(
HP
)
1/4
1/4
1/2
(min)
(kW)
0.187
0.187
0.373
Fan Diameter
(in.)
12
16
20
(mm)
305
406
508
Net without
(lbs.)
140
168
201
Weight DS5
(kg)
63.5
76.2
91.2
with
(lbs.)
152
180
213
DS5
(kg)
78.9
91.6
96.6
Shipping without
(lbs.)
194
218
252
Weight DS5
(kg)
88
98.9
114.3
with
(lbs.)
206
230
264
DS5
(kg)
93.4
104.3
119.7
Temperature Code Rating
T3B 165°C (329°F) Class I & II.
Enclosures
NEMA Type 7 & 9. For dry, indoor use only. Do not immerse in water. Do not store or use
in areas exposed to rain or snow.
Motor Type
Explosion-proof. Thermally protected. Permanently lubricated ball bearings.1725 RPM
Fan
Aluminum blade. Steel spider and hub with 5/8 in. (15.875 mm) bore.
Fan Guard
Split design with close wire spacing. 1/4 in. (6.3 mm) dia. probe will not enter.
Mounting Holes
Four 9/16 in. (14.3 mm) diameter holes at top of heater.
Heating Elements
Three long-life, low watt-density, high grade metal-sheathed elements.
Temperature High-Limit
Automatic reset type, snap-action bimetal, open on temperature rise. Rated 100,000 cycles
at 10 amps, handles 0.128 amps.
Control Circuit
120 Volts, 0.128 amps, 15VA. (Grounded)
Optional Built-in Thermostat
Explosion-proof. 2°C to 28°C
(36°
F to 82°
F)
Optional Built-in Disconnect Switch
DS5 for use only on heaters with total current not exceeding 48-Amps.
Lockout bar accepts 1/4” diameter padlock shackle.
Optional Three Way Switch
Fan only, Off, Auto.
Optional Pilot Light
Indicates heat-on cycle.
Control Transformer
Multi-tap primary, 120 V secondary, 50 VA.
Contactor
60 or 80 amps. Rated for 1,000,000 mechanical operations. 120 Volts, 15VA coil (separately
fuse-protected).
Heat Transfer Fluid
Long life formulated propylene glycol and water, freeze protected to -45°
C (-49
°
F).
Cabinet Material
14 ga. (0.075 in.) (1.90 mm) steel. Epoxy coated with five-stage pretreatment, including iron
phosphate. Optional stainless steel.
Core
Steel with integral aluminum fins, vacuum charged and hermetically sealed.
Conduit Material
Heavy walled, 0.122 in. (3.1 mm) steel.
Overpressure Protection
Preset 100 psig (690 kPa) pressure relief valve, aluminum body, no field serviceable
parts.
Operational Temperature Limitations
-45°C to 40°C (-49°F to 104°F)
Storage Limitations
-45°C to 80°C (-49°F to 176°F), short term to 120°C (248°F). Do not immerse in water.
Do not exposed to rain or snow.