Use And Care Manual

19
Wiring Diagram:
Immersion Thermostat Models
with Staging
2 Stage
-GS Models
ELEMENTS
20 22
810
712
9 11
21 23
19 24
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.
480 277 240 C 120 120
CONTROL
TRANSFORMER
208
THERMOSTATS
GRD
CONTACTORS
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
BLK
R R R
R R R
BLK BLK BLK
BLK BLK BLK
BLK BLK BLK
BLK BLK BLK
RRRR
BL
BL
WWW
13 14
15
123 456
H
I
19
20 21
7
8
910
11 12
A
LIMIT
D
CONNECTED TO
HIGH LIMIT
3 AMP
CLASS G FUSES
N M
V
1
2
BL
U
16 17 18
R R R
R R R
22
23 24
R R R R R R
BLK BLK BLK BLK BLK BLK
19
20 21
7
89
10
11 12
22
23 24
43 44 45 49 50 51
40 41 42
46 47 48
CONNECTED TO
RATED VOLTAGE ON
TRANSFORMER
!
C
BLK
W
J
R
B
R
D
R
F
R
E
!
!
!
BL
K
BL
G
FUSE BLOCKS
CLASS G
FUSES