10
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) 1/2 1/2 1/2
(min) (kW) 0.373 0.373 0.373
Fan Diameter (in.) 12 16 20
(mm) 305 406 508
Net without (lbs.) 140 168 201
Weight DS5 (kg) 68.9 81.6 91.2
with (lbs.) 152 180 213
DS5 (kg) 78.9 91.6 96.6
Shipping without (lbs.) 194 218 252
Weight DS5 (kg) 88.0 98.9 114.3
with (lbs.) 206 230 264
DS5 (kg) 93.4 104.3 119.7
Temperature Code Rating T3 200°C (392°F)
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.1425 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 5/8 in. (15.9 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, 50VA.
Contactor 60 or 80 amp. 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 -20°C to 40°C (-4°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.
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