king KBS Series Stainless Steel Unit Heater User Guide

: October 28, 2023
: KING

Table of Contents

king KBS Series Stainless Steel Unit Heater
The KBS Stainless Steel Unit Heater
Factory Installed Options
Engineering Speciﬁcations
Dimensions
Ordering Information
Options
Accessories
Read User Manual Online (PDF format)
Download This Manual (PDF format)

king KBS Series Stainless Steel Unit Heater

18 gauge stainless steel case
Adjustable discharge louvers
Auto-reset limit
Long life unit bearing motor
Padlock disconnect
Spiral finned element
Totally enclosed motor
Pilot light
Aluminum fan blade
N.E.M.A. 4 enclosure
2-year limited warranty

The KBS Stainless Steel Unit Heater

KBS unit heaters are specially constructed for heating of, and freeze protection in, dirty, dusty or corrosive areas requiring periodic washing or hose-down. Typical places of use are: waste water treatment plants, car/truck washes, cement plants, steel mills or such, canneries and dairy facilities, ship and marine docks, ﬁsh processors and load banks for generators. The heater is constructed from 18-gauge type 304 Stainless Steel and elements making it extremely corrosion resistant. The N.E.M.A. 4 wiring compartment is sealed and gasketed making it water tight. All optional control components are U.L. listed for use in N.E.M.A. 4 enclosures.

Factory Installed Options

Fan Delay: Standard above 11kW
Power Contactor: (when not standard)
24 Volt Control: (when not standard)
Mounting: Universal mounting bracket made from Stainless Steel included.

NEMA 4 Control Options:

SPST thermostat
Two stage thermostat (single phase only)
Summer fan switch
Pilot light (power on indicator)
Padlock disconnect

Engineering Speciﬁcations

Contractor shall supply and install KBS Series Stainless Steel heaters, manufactured by King Electrical Mfg. Company. Heaters shall be of the wattage and voltage as indicated on the plans.

Stainless Steel Construction: All exterior and interior metal enclosure parts are made from 18 gauge type 304 Stainless Steel. All fasteners and hardware are Stainless Steel.
Adjustable Outlet Louver: Stainless Steel louvers direct air up or down as needed for the heating application.
Rear Intake Screen: Heavy gauge Stainless Steel screen protects against foreign objects making accidental contact with the rotating fan blade.
N.E.M.A. 4 Enclosure: Every electrical component in the wiring compartment is sealed with a polyurethane adhesive. The bottom access panel is sealed with a ¼” high density polyurethane gasket. This provides excellent protection against corrosion, windblown dust, dirt,
and rain, splashing water and hose-directed water. All optional control accessories are N.E.M.A. 4 rated.
Stainless Steel Spiral Fin Elements : The metal sheath element is brazed with spiral ﬁns then molded in to a coil conﬁguration. This combination produces the best heat transfer while eliminating the potential for hot spots by positioning the element in the maximum air ﬂow stream. Stainless steel increases element life in extremely corrosive environments such as waste water treatment plants.
Totally Enclosed Fan Motor: Permanently lubricated, long life unit bearing coated motor with enclosed rotor resists moisture and
corrosion for long-lasting, trouble-free operation.
Aluminum Fan Blade: Axial ﬂow-type mounted directly to the motor shaft for maximum efﬁciency.
Manual Reset Limit Electrically Held: Power is disconnected from the heater if an overheated condition occurs. The heater is re-energized automatically when the normal operating temperature returns.
Internal Controls: Magnetic contactors are standard on all 480V heaters, all 208V/1-Phase, 240V/1-Phase, 277V/1-Phase heaters above 5kW, and all 3-Phase heaters. The control voltage is equal to the line voltage (208, 240 or 277) except for 480V models where a transformer is provided for 24V control. Over 5kW the line voltage control is operating the contactor coil only and will draw only 1 Amp.
Fusing: Internal circuit fusing is provided when the heater ampacity exceeds 48 Amps to comply with UL standards. A fan delay is provided standard on models 12.5-kW and above to dissipate residual heat from the heating elements.
Approvals: cULus

Dimensions

Ordering Information

KBS2003-1-B1| 22118| 3| 10.2| 1| 208| 14.4| 208| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
KBS2403-1-B1| 22217| 3| 10.2| 1| 240| 12.5| 240| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
KBS2703-1-B1| 22218| 3| 10.2| 1| 277| 10.8| 277| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
KBS2005-1-B1| 22124| 5| 17| 1| 208| 24| 208| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
KBS2405-1-B1| 20847| 5| 17| 1| 240/208| 20.8/18| 240| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
KBS2705-1-B1| 22127| 5| 17| 1| 277| 18.1| 277| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
KBS4805-1-B1| 22128| 5| 17| 1| 480| 10.4| 24| 9W| 400| 40°| 16ft.| 8ft.| A| 30.5
KBS2007-1-B1| 22133| 7.5| 25.6| 1| 208| 36.1| 208| 16W| 600| 40°| 20ft.| 9ft.| B| 45.0
KBS2407-1-B1| 22137| 7.5| 25.6| 1| 240/208| 31.2/27| 240| 16W| 600| 40°| 20ft.| 9ft.| B| 45.0
KBS2707-1-B1| 22219| 7.5| 25.6| 1| 277| 27| 277| 16W| 600| 40°| 20ft.| 9ft.| B| 45.0
KBS4807-1-B1| 22142| 7.5| 25.6| 1| 480| 15.6| 24| 16W| 600| 40°| 20ft.| 9ft.| B| 45.0
KBS2010-1-B2| 22147| 10| 34.1| 1| 208| 48.1| 208| 25W| 725| 44°| 24ft.| 10ft.| B| 45.0
KBS2410-1-B2| 22151| 10| 34.1| 1| 240/208| 41.6/36.1| 240| 25W| 725| 44°| 24ft.| 10ft.| B| 45.0
KBS2710-1-B2| 22154| 10| 34.1| 1| 277| 36.1| 277| 25W| 725| 44°| 24ft.| 10ft.| B| 45.0
KBS4810-1-B2| 22155| 10| 34.1| 1| 480| 20.8| 24| 25W| 725| 44°| 24ft.| 10ft.| B| 45.0
KBS2012-1-B2| 22159| 12.5| 42.7| 1| 208| 60.1| 208| 35W| 825| 48°| 30ft.| 11ft.| C| 46.5
KBS2412-1-B2| 22163| 12.5| 42.7| 1| 240/208| 52/45.1| 240| 35W| 825| 48°| 30ft.| 11ft.| C| 46.5
KBS2020-3-B2| 22173| 20| 68.3| 3| 208| 55.5| 208| 50W| 1100| 57°| 47ft.| 13ft.| C| 46.5
KBS2420-3-B2| 20849| 20| 68.3| 3| 240/208| 48.1/41.6| 240| 50W| 1100| 57°| 47ft.| 13ft.| C| 46.5
KBS2403-3MP-B2| 22222| 3| 10.2| 1-3| 240/208| 12.5/7.2| 240| 9W| 400| 40°| 16ft.| 8ft.| C| 46.5
KBS4803-3MP-B2| 22120| 3| 10.2| 1-3| 480| 6.3| 24| 9W| 400| 40°| 16ft.| 8ft.| C| 46.5
KBS2005-3MP-B2| 22126| 5| 17.1| 1-3| 208| 24 & 13.9| 208| 9W| 400| 40°| 16ft.| 8ft.| C| 46.5
KBS2405-3MP-B2| 22223| 5| 17.1| 1-3| 240/208| 20.8/18 & 18/15.6| 240| 9W| 400| 40°| 16ft.| 8ft.| C| 46.5
KBS4805-3MP-B2| 20850| 5| 17.1| 1-3| 480| 10.4 & 6| 24| 9W| 400| 40°| 16ft.| 8ft.| C| 46.5
KBS2007-3MP-B2| 22135| 7.5| 25.6| 1-3| 208| 36.1 & 20.8| 208| 16W| 600| 40°| 20ft.| 9ft.| C| 46.5
KBS2407-3MP-B2| 22139| 7.5| 25.6| 1-3| 240/208| 31.2/27 & 18/15.6| 240| 16W| 600| 40°| 20ft.| 9ft.| C| 46.5
KBS4807-3MP-B2| 20717| 7.5| 25.6| 1-3| 480| 15.6 & 24| 24| 16W| 600| 40°| 20ft.| 9ft.| C| 46.5
KBS2010-3MP-B2| 22149| 10| 34.1| 1-3| 208| 27.7| 208| 25W| 725| 44°| 24ft.| 10ft.| C| 46.5
KBS2410-3MP-B2| 20848| 10| 34.1| 1-3| 240/208| 41.6/36.1 & 24/20.8| 240| 25W| 725| 44°| 24ft.| 10ft.| C| 46.5
KBS4810-3MP-B2| 20851| 10| 34.1| 1-3| 480| 20.8 & 12| 24| 25W| 725| 44°| 24ft.| 10ft.| C| 46.5
KBS2012-3-B2| 22161| 12.5| 42.7| 3| 208| 34.6| 208| 35W| 825| 48°| 30ft.| 11ft.| C| 46.5
KBS2412-3-B2| 22164| 12.5| 42.7| 3| 240/208| 30/26| 240| 35W| 825| 48°| 30ft.| 11ft.| C| 46.5
KBS4812-3MP-B2| 22166| 12.5| 42.7| 1-3| 480| 26 & 15| 24| 35W| 825| 48°| 30ft.| 11ft.| C| 46.5
KBS2015-3-B2| 22169| 15| 51.2| 3| 208| 41.6| 208| 35W| 925| 51°| 33ft.| 12ft.| C| 46.5
KBS2415-3-B2| 22171| 15| 51.2| 3| 240/208*| 36/31.2| 240| 35W| 925| 51°| 33ft.| 12ft.| C| 46.5
KBS4815-3MP-B2| 22224| 15| 51.2| 1-3| 480| 18| 24| 35W| 925| 51°| 33ft.| 12ft.| C| 46.5
KBS4820-3MP-B2| 20852| 20| 68.3| 1-3| 480| 41.6/24.1| 24| 50W| 1100| 57°| 37 ft.| 12ft.| E| 55.0

*Dual rated heaters will draw 13% less amps and 25% less wattage when operated at 208V

Options

-T 1-Pole Unit Mounted Thermostat (temperature range 40°F – 100°F)
-2TS 2-Stage Thermostat (Single Phase models only)
-B1 Mounting Bracket KBB-1 (included with heater size A)
-B2 Mounting Bracket KBB-2 (included with heater size B and C)
-SF Summer Fan Switch
-SFR Control Relay and 24V Transformer for Remote Summer Fan Operation
-PL Pilot Light (power ON indication)
-CX Power Contactor for 3 kW – 5kW 1-Phase Models (Line Voltage Coil)
-CT24 Transformer that Converts 208, 240 and 277 Volts to 24 Volt Control Circuit {add power contactor (-CX) for 3 kW-5kW 1-Phase models}

Accessories

Accessories|
---|---
MODEL| DESCRIPTION| UPC#| WT. (lbs)
KBB-1-SS| Mounting Bracket – Small| 15254| 3
KBB-2-SS| Mounting Bracket – Large| 15256| 4
TF115| Single Pole Wall Mount Thermostat

N.E.M.A. 4X – 25A SPDT

| 19150| 1

King Electrical Manufacturing Company /9131 10th Avenue South, Seattle, WA 98108 phone 206.762.0400 fax 206.763.7738 www.king-electric.com