The CK model is a special application heater approved for use in concealed areas of buildings such as an area between a finished ceiling and drop ceiling, in an open plenum or in a ducted system. It is specifically designed for high-rise and office buildings, factories, auto body shops, food processing plants, plating shops, and machine shops. It is engineered to withstand dirty, dusty, moist or even mildly corrosive environments, and rated for zero clearance mounting against any surface. Not intended for use where flammable vapors, gases, liquids or other combustibles are, or may be present.
- High Mass Steel Fin Heat Exchanger
- Dual Inlet Blower
- Totally Enclosed Motor
- N.E.M.A. 12 Construction
- Adjustable Louvers to Direct Air
- 18GA Steel Enclosure
- 24V Control
- Horizontal Mount
- Can Be Ducted
- Proudly Made in the USA with U.S. & Global Materials
- 3-Year Limited Warranty
Concealed Space Use - Zero Clearance
A special application heater approved for use in concealed areas of buildings such as an area between a finished
ceiling and drop ceiling, in an open plenum or in a ducted system.
Learn more: What is a Plenum?
(Read Tech Article)
Built Tough. Dirt, Dust, Plenum Space. No Problem.
Engineered to withstand dirty, dusty, moist or even mildly corrosive environments, and rated for zero clearance mounting against any surface.
Available Models
Ordering Information - Single Phase
| MODEL | KILOWATTS | BTUH(000) | VOLTS | AMPS | MOTOR HP | CFM | TEMP. RISE | SIZE | WEIGHT lbs |
|---|---|---|---|---|---|---|---|---|---|
| CK2003-1 | 3.3 | 10 | 208 | 14.4 | 1/4 | 600 | 17.4F | Fig. A | 75 |
| CK2005-1 | 5 | 17 | 208 | 24 | 1/4 | 600 | 26.3F | Fig. A | 75 |
| CK2007-1 | 7.5 | 23.9 | 208 | 33.6 | 1/4 | 1000 | 23.7F | Fig. A | 80 |
| CK2010-1 | 10 | 34.1 | 208 | 48.1 | 1/4 | 1000 | 31.6F | Fig. A | 80 |
| CK2012-1 | 12.5 | 41 | 208 | 57.7 | 1/4 | 1000 | 39.5F | Fig. A | 85 |
| CK2015-1 | 15 | 51.2 | 208 | 72.1 | 1/4 | 1000 | 47.4F | Fig. A | 85 |
| CK2403-1 | 3.3/2.5 | 10 | 240/208* | 13.8/11.9* | 1/4 | 600 | 17.4F | Fig. A | 75 |
| CK2405-1 | 5/3.8 | 17 | 240/208* | 20.8/18.0* | 1/4 | 600 | 26.3F | Fig. A | 75 |
| CK2407-1 | 7.5/5.6 | 23.9 | 240/208* | 31.3/27* | 1/4 | 1000 | 23.7F | Fig. A | 80 |
| CK2410-1 | 10/7.5 | 34.1 | 240/208* | 41.7/36* | 1/4 | 1000 | 31.6F | Fig. A | 80 |
| CK2412-1 | 12.5/9.4 | 41 | 240/208* | 52.1/45.1* | 1/4 | 1000 | 39.5F | Fig. A | 85 |
| CK2415-1 | 15/11.3 | 51.2 | 240/208* | 62.5/54.1* | 1/4 | 1000 | 47.4F | Fig. A | 85 |
| CK4805-1 | 5 | 17 | 480 | 10.4 | 1/4 | 1000 | 15.8F | Fig. A | 75 |
| CK4807-1 | 7.5 | 23.9 | 480 | 14.6 | 1/4 | 1000 | 23.7F | Fig. A | 80 |
| CK4810-1 | 10 | 34.1 | 480 | 20.8 | 1/4 | 1000 | 31.6F | Fig. A | 80 |
| CK4812-1 | 12.5 | 41 | 480 | 25 | 1/4 | 1000 | 39.5F | Fig. A | 85 |
| CK4815-1 | 15 | 51.2 | 480 | 31.1 | 1/4 | 1000 | 47.4F | Fig. A | 85 |
Ordering Information - Three Phase
| MODEL | KILOWATTS | BTUH(000) | VOLTS | AMPS | MOTOR HP | CFM | TEMP. RISE | SIZE | WEIGHT lbs |
|---|---|---|---|---|---|---|---|---|---|
| CK2003-3 | 3 | 10 | 208 | 8.3 | 1/4 | 600 | 17.4F | Fig. A | 90 |
| CK2005-3 | 5 | 17.1 | 208 | 13.9 | 1/4 | 600 | 26.3F | Fig. A | 90 |
| CK2007-3 | 7.5 | 23.9 | 208 | 19.5 | 1/4 | 1000 | 23.7F | Fig. A | 90 |
| CK2010-3 | 10 | 34.1 | 208 | 27.8 | 1/4 | 1000 | 31.6F | Fig. A | 90 |
| CK2012-3 | 12.5 | 41 | 208 | 33.3 | 1/4 | 1000 | 39.5F | Fig. A | 90 |
| CK2015-3 | 15 | 51.2 | 208 | 41.6 | 1/4 | 1000 | 47.4F | Fig. A | 90 |
| CK2020-3 | 20 | 68.3 | 208 | 55.5 | 1/2 | 1250 | 50.6F | Fig. A | 95 |
| CK2025-3 | 25 | 85.3 | 208 | 69.4 | 1/2 | 1250 | 63.2F | Fig. A | 95 |
| CK2030-3-DBL | 30 | 102.4 | 208 | 83.3 | 1/4 (2) | 2000 | 47.4F | Fig. B | 180 |
| CK2040-3-DBL | 40 | 136.5 | 208 | 111 | 1/2 (2) | 2500 | 50.6F | Fig. B | 190 |
| CK2050-3-DBL | 50 | 170.6 | 208 | 138.7 | 1/2 (2) | 2500 | 63.2F | Fig. B | 190 |
| CK2403-3 | 3/2.3 | 10 | 240/208* | 7.2/6.2 | 1/4 | 600 | 17.4F | Fig. A | 90 |
| CK2405-3 | 5/3.8 | 17.1 | 240/208* | 12/18 | 1/4 | 600 | 26.3F | Fig. A | 90 |
| CK2407-3 | 7.5/5.6 | 23.9 | 240/208* | 18/15.6 | 1/4 | 1000 | 23.7F | Fig. A | 90 |
| CK2410-3 | 10/7.5 | 34.1 | 240/208* | 24/20.8 | 1/4 | 1000 | 31.6F | Fig. A | 90 |
| CK2412-3 | 12.5/9.4 | 41 | 240/208* | 30.1/26 | 1/4 | 1000 | 39.5F | Fig. A | 90 |
| CK2415-3 | 15/11.3 | 51.2 | 240/208* | 36.1/31.2 | 1/4 | 1000 | 47.4F | Fig. A | 90 |
| CK2420-3 | 20/15 | 68.3 | 240/208* | 48.1/41.6 | 1/2 | 1250 | 50.6F | Fig. A | 95 |
| CK2425-3 | 25/18.8 | 85.3 | 240/208* | 60.1/52 | 1/2 | 1250 | 63.2F | Fig. A | 95 |
| CK2430-3-DBL | 30/22.5 | 102.4 | 240/208* | 72.2/62.4 | 1/4 (2) | 2000 | 47.4F | Fig. B | 180 |
| CK2440-3-DBL | 40/30 | 136.5 | 240/208* | 96.2/83.2 | 1/2 (2) | 2500 | 50.6F | Fig. B | 190 |
| CK2450-3-DBL | 50/37.5 | 170.6 | 240/208* | 120.2/104 | 1/2 (2) | 2500 | 63.2F | Fig. B | 190 |
| CK4805-3 | 5 | 17.1 | 480 | 6 | 1/4 | 1000 | 15.8F | Fig. A | 90 |
| CK4807-3 | 7.5 | 23.9 | 480 | 8.4 | 1/4 | 1000 | 23.7F | Fig. A | 90 |
| CK4810-3 | 10 | 34.1 | 480 | 12 | 1/4 | 1000 | 31.6F | Fig. A | 90 |
| CK4812-3 | 12.5 | 41 | 480 | 14.5 | 1/4 | 1000 | 39.5F | Fig. A | 90 |
| CK4815-3 | 15 | 51.2 | 480 | 18 | 1/4 | 1000 | 47.4F | Fig. A | 90 |
| CK4820-3 | 20 | 68.3 | 480 | 24.1 | 1/2 | 1250 | 50.6F | Fig. A | 95 |
| CK4825-3 | 25 | 85.3 | 480 | 30.1 | 1/2 | 1250 | 63.2F | Fig. A | 95 |
| CK4830-3-DBL | 30 | 102.4 | 480 | 36.1 | 1/4 (2) | 2000 | 47.4F | Fig. B | 180 |
| CK4840-3-DBL | 40 | 136.5 | 480 | 48.1 | 1/2 (2) | 2500 | 50.6F | Fig. B | 190 |
| CK4850-3-DBL | 50 | 170.6 | 480 | 60.1 | 1/2 (2) | 2500 | 63.2F | Fig. B | 190 |
Ordering Information - Factory Installed Options
| ADD SUFFIX | DESCRIPTION |
|---|---|
| -T | NEMA 4X Single Pole Thermostat |
| -ND | No Diffuser Option - Applications when connecting to ductwork |
| -1/4HP | Substitute 1/4 HP Motor (1000 CFM) |
| -1/3HP | Substitute 1/3 HP Motor (1250 CFM) |
| -1/2HP | Substitute 1/2 HP Motor (1500 CFM) |
| -3/4HP | Substitute 3/4 HP Motor (2000 CFM) |
| -DS32 | 32 Amp 3-Pole Lockable Disconnect Switch |
| -DS63 | 63 Amp 3-Pole Lockable Disconnect Switch |
| -DS80 | 80 Amp 3-Pole Lockable Disconnect Switch |
| -DS100 | 100 Amp 3-Pole Disconnect Switch |
| -2TS | Accessory 2-Stage Thermostat |
| -2S1 | 2-Stage - 1Phase Models |
| -2S3 | 2-Stage - 3Phase Double Case Models* *Single Case 3 Phase Heaters Can Not be 2-Staged) |
Engineering Specs
Contractor shall supply and install CK Series plenum heaters manufactured by King Electrical Mfg. Company. Heaters shall be of the wattage and voltage as indicated on the plans.
Construction: The heater case is fabricated from high tensile 18 gauge electrogalvanized steel that is welded together forming a durable unibody cabinet. Heater is finished with a rust inhibiting epoxy coating.
Adjustable Outlet Louver: Louvers direct air up or down as needed for the heating application.
Intake and Discharge Screen: Heavy gauge steel screen protects against foreign objects entering the heater. A 1″ x 16″ x 20″ filter is provided to prevent dirt and dust build up in the heater.
Air Filter: Convenient access for replacement of standard 16” x 20” x 1” filter.
N.E.M.A. 12 Wiring Compartment: The wiring compartment is sealed with a ¼” high density polyurethane gasket. This provides excellent protection against moisture, dust and dirt from invading the electrical components and wiring. All optional control accessories are N.E.M.A. 12 rated.
Spiral Fin Elements: The metal sheath element is brazed with spiral fins and then formed into a coil configuration. This combination produces the best heat transfer while eliminating the potential for hot spots by positioning the element in the maximum airflow stream.
Blower & Motor: Totally enclosed outdoor ball bearing fan motor. Permanently lubricated, class B insulation, auto-protected, permanent split capacitor and 60°C ambient. Large capacity dual-inlet blower handles high static pressure and moves large air volume. Motor leads are enclosed in a sealtite raceway to prolong equipment life & amp; reduce maintenance.
Air Intake Temperature Control: A built-in thermostat located at the intake blower is factory set at 100°F which prevents the heater from operating when the ambient temperature exceeds this limit. This will prevent the heater from wasting energy and is an extra measure of safety.
Auto-Reset Thermal Cutout: Power is disconnected from the element if an overheated condition occurs. The fan continues to run to dissipate excess heat from the element. The element is re-energized automatically when the normal operating temperature returns.
Internal Controls: Magnetic contactors are standard on all units. A transformer is provided for 24 Volt control. This enables the customer to use a standard low voltage thermostat. Sub-circuit fusing is provided when the heater ampacity exceeds 48 Amps to comply with UL standards. A fan delay is provided standard on models above 11kW to dissipate residual heat from the heating elements.
Easy Wiring: large wiring compartment allows quick access
Mounting: CK heater comes with two brackets welded on top to be hung from the ceiling or beam using threaded rod.
Approvals: ETL Certified to comply with standard for Heating and Cooling Equipment ANSI/UL 1995 fourth edition.
Meets stringent City of Chicago codes for plenum use.
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