Architectural Heater LPWA Series
LPWA 24
A
B
45
C
-TP
D
A: Series
B: 12 - 120V 24 - 240V
20 - 208V 27 - 270V
C: Watts (1500 to 4500)
D: Thermostat (optional)
Pic-A-Watt® Element
Cast Iron Motor
5-Blade Aluminum Fan 185 CFM
Smart Limit Protection ®
Multiple wattages
Extruded aluminum grill
Approved for direct contact
with building insulation
Selector Switch: Fan/Heat/Off
120, 208, 240, or 277 Volts
Standard color aluminum,
bronze & white optional
The LPWA Architectural Heater
Entryways, corridors and all public areas are best heated with the LPWA Series. The heavy grill and frame can withstand heavy
traffic and abuse. Tamper-resistant screws prevent unauthorized disassembly of the grill. Controls are recessed out-of-reach of fiddling
fingers. High wattage and airflow capacities replenish entryways and hallways to prevent drafts from entering the building’s core.
Ordering Information
120V
208V
240V
277V
MODEL
LPWA1215
LPWA1220
LPWA1227
LPWA2020
LPWA2030
LPWA2040
LPWA2045
LPWA2420
LPWA2430
LPWA2440
LPWA2445
LPWA2720
LPWA2730
LPWA2740
*Add suffix -BZ for dark bronze, and -W for white
UPC
18370
18372
18250
18374
18376
18251
18240
18378
18380
18382
18193
18384
18386
18252
VOLTS
120
120
120
208
208
208
208
240
240
240
240
277
277
277
WATTS
1500
2000
2750
2000
3000
4000
4500
2000
3000
4000
4500
2000
3000
4000
AMPS
12.5
16.7
22.9
9.6
14.4
19.2
21.6
8.3
12.5
16.6
18.75
7.2
10.8
14.4
SHIP WEIGHT lbs
24
24
24
24
24
24
24
24
24
24
24
24
24
24
Engineering Specifications
Contractor shall supply and install LPWA Series in-wall mounted forced-air electric heaters manufactured by King Electrical Mfg. Company,
of the wattage and voltage as indicated on the plans
Grill: Heavy extruded 12 gauge aluminum provides high impact resistance
to damage. Grill is attached with tamper-proof screws (hex socket/pinned).
All controls are easily accessed through grill with slotted screwdriver.
Standard color is anodized aluminum. Dark bronze or white is available.
Elements: Element assemblies shall be non-glowing design. Element
assemblies shall consist of steel sheathed heating tubes in a furnacebrazed, plate finned, block design. Each sheathed tube shall contain a
coiled Ni-Chrome wire embedded in an insulator of Magnesium Oxide.
The element assembly shall provide the specific wattage as indicated.
Optional Built-in Thermostat: Single Pole factory installed hydraulic
capillary tube with precision control. Operating range 40˚F to 90˚F.
Thermostat is tamper-proof to prevent unauthorized adjustment.
Fan / Heat / Off Switch: Tamper-proof 3-position switch provides
heating and summer fan-only operation. The DPST off switch provides
a “positive off”that disconnects all ungrounded conductors. Controls
are easily accessed through grill with slotted screwdriver.
If thermal overload trips due to abnormal operating temperatures,
thermal overload shall remain open until manually reset by turning the
heater off for 15 minutes.
Fan Delay Switch: The fan continues to operate after the thermostat
shuts off in order to remove the residual heat left in the elements.
Unit Bearing Motor: Permanently cast iron lubricated motor with
enclosed rotor provides long-lasting, trouble-free operation and a
20cc oil reservoir. Thermally protected. 1300 RPM.
Indicator Light: Illuminates when the thermal cutout trips and turns
off when the limit resets.
Auto-Reset Thermal Cutout: Heater shuts off when an overheat
condition exists and automatically resets when the normal operating
temperature returns.
Wall box: 20 gauge electro-galvanized steel. Factory installed
ground-wire. Minimum 4” clearance to floors and 6”to sidewalls. Zero
clearance to combustibles in the wall.
Architectural Heater LPWA Series
Optional Circuit Breaker / Disconnect: Transformer Relay 24V
control.
Approvals: UL(E41400) / cETL
Thermal Overload: Heaters shall be equipped with King’s patented
thermal overload Smart Limit Protection®, which disconnects elements
and motor in the event normal operating temperatures are exceeded.
Dimensional Data
1”
1½”
MINIMUM CLEARANCE: Zero clearance to insulation recommended 10" above floor 6" from adjacent wall surface
GRILL DEPTH = 1¾”
1¾”
FRONT
SIDE
1½”
½ K.O.
½ K.O.
23¼”
23”
=knockout location
1”
TOP
¾”
½ K.O.
3 ¾”
11½”
12-7/8”
Options
ADD SUFFIX
-BZ
-W
-CT24
-CX
-S
-TP
-CB2
-CB3
DESCRIPTION
Grill - Dark Bronze
Grill - White
Transformer that converts 208, 240 and 277 Volts to 24 Volt Control Remote
Circuit {add power contactor (-C) for 3kW - 5kW 1-Phase models}
Contactor for 3kW - 5kW 1-Phase Models (Line Voltage Coil)
Surface Can Included
Factory Installed Tamper-proof Thermostat
20 Amp Double Pole Circuit Breaker / Disconnect
30 Amp Double Pole Circuit Breaker / Disconnect
WEIGHT lbs
24
24
DESCRIPTION
WEIGHT lbs
24.5
24.5
24
24
0.5
0.5
Accessories
MODEL
UPC
LPWAIC
LPWASA
LPWAG
LPWA-TP
18200
18197
18158
18140
WIRING DIAGRAM
Architectural Recess Wall Can
Surface Can
LPWA Series Grill - Anodized Aluminum
Tamper-proof Thermostat Replacement
6.5
5
7
2
breaker box
for remote thermostat installation
thermostat
75
heater
Power must be routed to heater first, then to remote thermostat.
Bronze
White
Mill
Silver Anodized