M0
1
1
C
.0
2
2
M-Z
1
6
2
9
8
O
w
n
e
rs
Ma
n
u
a
l
fo
r
Bu
il
t-I
n
W
e
ll
Mo
d
u
la
r
W
a
rme
rs
WIRING DIAGRAM: MOD300 Thermostat Control Units
31
PILOT LIGHT
TERM. BLOCK
THERMOSTAT (3)
PILOT LIGHT (3)
L1
L2
L3
REV. E
P/N 2M-48589
240
208
VOLTS
L1
L2
L3
THREE PHASE
PHASE
SINGLE
50
60
HZ
10.3
10.3
10.3
11.9
11.9
11.9
17.9
20.6
HEATING ELEMENT (3)
SINGLE PHASE
PL
L1
L2
L3
6
WIRE CONNECTOR
12
7
3
6
1
2
3
4
5
6
7
8
9
WIRING DIAGRAM FOR MOD 300T, 327T WARMER
208/240V, SINGLE & THREE PHASE
TERMINAL
BOARD
12
9
1
4
3
1
4
7
9
12
9
35
L3
4
7
3
33
6
22
L2
L1
HEATING ELEMENT (3)
20.6
17.9
11.9
11.9
11.9
10.3
10.3
10.3
HZ
60
50
SINGLE
PHASE
THREE PHASE
L3
L2
L1
LOW WATER CONTROL
VOLTS
208
240
208/240V, SINGLE & THREE PHASE
WIRING DIAGRAM FOR MOD300TDM AND 327TDM W/AUTO WATER FILL
4
3
2
1
PROBE
COM
1
9
8
7
6
5
4
19
3
2
1
19
37
34
35
36
38
WATER FILL VALVE
PILOT LIGHT
THERMOSTAT
31
33
31
22
51
50
SINGLE PHASE
WATER PAN
GRN
PROBE
INPUT
NO
COMMON
34
37
35
19
38
36
33
P/N 2M-48110
REV. G
L3
L2
L1
1
4
35
WIRE
CONNECTOR
TERM. BLOCK
31
3
7
22
9
6
ALTERNATE LOW
WATER CONTROL
MAX
MALE/FEMALE
CONNECTOR
M300T & M327T Series
M300T-AF & M327T-AF Series