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
34
TERM. BLOCK
THERMOSTAT (5)
PILOT LIGHT (5)
L1
L2
L3
REV. D
P/N 2M-48604
HEATING ELEMENT (5)
SINGLE PHASE
L1
L2
L3
WIRE CONNECTOR
20
10
20
7
13
3
16
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
WIRING DIAGRAM FOR MOD 500T, 527T WARMER
208/240V, SINGLE & THREE PHASE
240
208
VOLTS
L1
L2
L3
THREE PHASE
PHASE
SINGLE
50
60
HZ
14.6
14.6
19.5
16.9
16.9
22.1
29.8
34.4
TERMINAL
BOARD
18
18
9
15
1
4
12
17
16
20
6
18
3
16
1
4
13
7
10
15
17
9
12
17
34
37
35
19
38
36
INPUT
NO
COMMON
WIRE
CONNECTOR
15
18
35
17
20
3
10
7
13
4
1
9
6
16
L3
L2
L1
12
9
15
6
SINGLE PHASE
34.4
29.8
16.9
16.9
22.1
14.6
14.6
19.5
HZ
60
50
SINGLE
PHASE
THREE PHASE
L3
L2
L1
VOLTS
208
240
WIRING DIAGRAM FOR MOD-500TDM, 527TDM W/AUTO WATER FILL (SINGLE CONTROL PANEL)
L3
L2
L1
12 11
10
9
8
7
6
5
4
3
2
1
18
13
PILOT LIGHT
THERMOSTAT
TERM. BLOCK
7
10
18
16
LOW WATER CONTROL
WATER PAN
PROBE
19
51
35
36
38
WATER FILL SOLENOID
GRN
15 14
13
19
16
3
20
1
4
12
17
35
21
21
21
37
ALTERNATE LOW
WATER CONTROL
MAX
HEATING
ELEMENT
208/240V, SINGLE & THREE PHASE
P/N 2M-303567
REV. B
4
3
2
1
PROBE
COM
50
17
20
34
MALE/FEMALE
CONNECTORS
M500T-AF & M527T-AF Series (Single Control Panel)
M500T & M527T Series
WIRING DIAGRAM: MOD500 Thermostat Control Units