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12
Wiring Diagram:
Surface Mounted Thermostat Models
-G Models
3 & 6 Element Models Only
NOTE:
To insure proper thermostat response,
be sure to replace insulation pad tightly
over elements after servicing.
THERMOSTAT
ELEMENTS
FUSE BLOCKS
30 AMP
CLASS G
FUSES
COPPER
CONDUCTORS
CONTACTORS
BLK
C
BLK
D
CONNECTED TO
TERMINAL 1 ON
THERMOSTAT
3 AMP
CLASS G FUSES
480
277
240
C
120
120
CONTROL
TRANSFORMER
208
GRD
18
15
6
3
17
14
5
2
16
13
4
1
THREE PHASE CONNECTIONS
1 2 3
SINGLE PHASE CONNECTIONS
ALL BLACK ALL RED
FIELD
WIRING
BLOCK
R
B
A
R
R
R
R
R
R
R
R
R
R
R
R
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
RRRR
BL BL BL
WWW
13 14
15
123 45616 17
18
L
N
H
I
K
M
19
20 21
7
89
10
11 12
22
23 24
20 22
810
712
9 11
21 23
19 24
No. of Elements Follow Wire Routes
3
6
1 thru 12, A thru J
1 thru 24, A thru N
!
R
D
!
W
J
BL
G
R
F
!
CONNECTED TO
RATED VOLTAGE
ON TRANSFORMER
NOTE:
THIS WATER HEATER MAY BE SUPPLIED BY A BRANCH CIRCUIT HAVING OVER 300 VOLTS BETWEEN
CONDUCTORS, PROVIDED THE SYSTEM HAS A GROUND NEUTRAL AND NO CONDUCTOR IS OVER
300 VOLTS TO GROUND.
!
THERMOSTAT AND HIGH LIMIT CONTROLS
OPERATE AT INCOMING LINE VOLTAGE.
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