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King electrical mfg. company
Wiring Heater
WARNING -
Before proceeding further with the
installation of this heater, turn off the power and lock
the supply line for the heater at the main service panel.
1. Remove wiring compartment cover.
2. Remove one of the knockouts from back of unit.
It is not necessary to remove grill covers.
3. Size service wire to adequately handle Amp load
of heater. Refer to the Circuit Sizing Table for
proper wire size and circuit protection.
4. Connect supply wire to L1, L2 & L3 for 3-Phase
or L1 and L3 for 1-Phase as shown in the diagram
below. Connect to the lugs on the line side of the
contactor.
5. Secure power supply cable with clamps.
6. Connect groundwire to the green pigtail.
7. Reinstall wiring compartment cover.
8. Adjust the heater to the desired position.
3-Phase to 1-Phase Diagram
Contactor
Black
L1
T1
X - Black
L2
T2
Y - Red
L3
T3
Red
Coil
1. Factory wired for 3-Phase.
2. For conversion to 1-Phase:
a) Move wire X - Black from T2 to T1.
b) Move wire Y - Red from T2 to T3.
c) Make power connections to L1 & L3.
Field Wattage Selection
1. 3-Phase
a) 5700 Watts factory wired
b) 2850 Watts- disconnect B, E, H
2. 1-Phase
a) 5700 Watts factory wired
b) 4750 Watts - disconnect H
c) 3800 Watts - disconnect H, B
d) 2850 Watts - disconnect H, B, E
e) 1900 Watts - disconnect H, C, E, A
A
L1
T1
T1
240/208V
L2
Pic-A-Watt
Metal Sheath Element
9131 - 10th Avenue South Seattle, Washington 98108
CIRCUIT SIZING TABLE
Watts
BTUH
Volts
208
1,900
6,484
240
208
2,850
9,727
240
208
3,800
12,969
240
208
4,750
16,211
240
208
5,700
19,454
240
Watts
BTUH
Volts
208
2,850
9,727
240
208
5,700
19,454
240
* Per the National Electric code heating circuits are considered a continuous load
and therefore must be derated by 20%. For example: a 20 Amp heating circuit cannot
have more than 16 Amps of load connected.
Black
Black
D
Red
Red
B
C
Red
Contactor
Black
T1
X-Black
T2
Y-Red
T3
Red
Coil
Black
®
THERMOSTAT
KBP2406-3MP and KBP2006-3MP
1900 • 2850 • 3800 • 4750 • 5700
WATTAGES AVAILABLE IN ONE UNIT
Amps
Wire
Circuit
1-Phase
Size
Protection
9.1
#14 / 2
15A - 2P
7.9
20A - 2P
13.7
#12 / 2
15A - 2P
11.9
#14 / 2
18.3
#10 / 2
30A - 2P
15.8
#12 / 2
20A - 2P
22.8
#10 / 2
30A - 2P
19.8
27.4
#8 / 2
40A - 2P
23.7
#10 / 2
30A - 2P
Amps
Wire
Circuit
3-Phase
Size
Protection
7.9
#14 / 3
15A - 3P
6.8
15.8
#12 / 3
20A - 3P
13.7
ELEMENT
J
I
F
G
E
Black
MOTOR
Black
Black
Gray
Blue
Yellow
Red
1
2
LIMIT
3
Purple
2007 KBP 3-P.indd : 5/08
H
L1
L2
L3
FAN
DELAY
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