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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
120
1
/2 18
1
/2 1
3
/4 515 – –22 17
3
/4
15
/16
13
/16 132-122539-001
225
1
/2 23
1
/2 2
3
/4 618 1 524 27
3
/4
15
/16
13
/16 132-122539-002
330
1
/2 28
1
/2 2
1
/4 8 24 2 10 28 3 12
3
/4
15
/16
13
/16 132-122539-003
435
1
/2 33
1
/2 1
3
/4 10 30 3 15 32 4 12
3
/4
15
/16
13
/16 132-122539-004
540
1
/2 38
1
/2 2
3
/4 11 33 4 20 34 5 12
3
/4
15
/16
13
/16 132-122539-005
645
1
/2 43
1
/2 2
1
/4 13 39 5 25 38 6 17
3
/4
15
/16
13
/16 132-122539-006
750
1
/2 48
1
/2 1
3
/4 15 45 6 30 42 7 22
3
/4
15
/16
13
/16 132-122539-007
855
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-