MAINTENANCE
OPTIONAL EQUIPMENT
TMC 7-day Calendar, Electric Dial Timer is used to provide
automatic start-up/off-on control of large tank heaters or could be
set up for non-peak operation. Standard features: 7-day calendar
dial permits different on/off schedules on different days of week.
2 to 14 replaceable trippers for up to 4 on/off operations per day,
up to 28 on/off operations per week. 3 hour minimum on or off
time; 21 hour maximum on or off time. Independent 4-pole design
allows SPST, DPST, SPDT switching. Manual on/off lever trans-
fers switch operation without disburbing daily or weekly preset
schedule. Heavy duty synchronous motor suitable for operation
between –40°F and +140°F. Switch slider bar assures positive
switching. Heavy duty terminals accommodate up to AWG No. 8
Wire.
No. Tubes
A
B
C
D
E
F
G
H
J
K
L
M
Gasket P/N
1
20
1
/
2
18
1
/
2
1
3
/
4
5
15
–
–
22
1
7
3
/
4
15
/
16
13
/
16
132-122539-001
2
25
1
/
2
23
1
/
2
2
3
/
4
6
18
1
5
24
2
7
3
/
4
15
/
16
13
/
16
132-122539-002
3
30
1
/
2
28
1
/
2
2
1
/
4
8
24
2
10
28
3
12
3
/
4
15
/
16
13
/
16
132-122539-003
4
35
1
/
2
33
1
/
2
1
3
/
4
10
30
3
15
32
4
12
3
/
4
15
/
16
13
/
16
132-122539-004
5
40
1
/
2
38
1
/
2
2
3
/
4
11
33
4
20
34
5
12
3
/
4
15
/
16
13
/
16
132-122539-005
6
45
1
/
2
43
1
/
2
2
1
/
4
13
39
5
25
38
6
17
3
/
4
15
/
16
13
/
16
132-122539-006
7
50
1
/
2
48
1
/
2
1
3
/
4
15
45
6
30
42
7
22
3
/
4
15
/
16
13
/
16
132-122539-007
8
55
1
/
2
53
1
/
2
2
3
/
4
16
48
7
35
44
8
22
3
/
4
15
/
16
13
/
16
132-122539-008
Table 3
Tank
Adapter
Box
Overtemperature Cutout
Figure 3
CHROMALOX TYPE TMC 7-DAY TIMER (SUFFIX T)
-4-
