CEMP-E
TI 810-32
10 January 2002
NEMA 4 LOCKABLE
ENCLOSURE
M-1
M-2
SUMP PIT
(2'x2'x1' (deep)
MINIMUM)
ELECTRICAL SERVICE
(SEE NOTE 2)
CONCRETE PAD
2'-0"
PLAN
VALVE
MANHOLE
NO SCALE
SEE NOTE 1
RED LENS
SEE NOTE 4
A
MOTOR STARTER MINIMUM
SIZE: NEMA 00
20 AMP 3
NEMA 4 LOCKABLE
POLE CB
ENCLOSURE
4' MIN.; 7' MAX.
6" THICK CONCRETE
PAD (SEE NOTE 3)
GRADE
ROUTE 2" DISCHARGE PIPE AS
DETAILED FOR SUMP BASIN
SYSTEM (FIGURE 3-23)
ELECTRICAL SERVICE
LEVEL SWITCH (ALARM)
(SEE NOTE 2)
LEVEL SWITCH (ON)
VALVE
MANHOLE
LEVEL SWITCH (OFF)
M2
M1
SCHEMATIC
NO SCALE
NOTES:
1.
HIGH WATER LEVEL ALARM LIGHT. 120 VOLTS, 75 WATT SEALED BEAM LAMP, 60 FLASHES PER MINUTE.
FEDERAL SIGNAL MODEL 27-S OR APPROVED EQUAL. THE LENS SHALL BE RED.
2.
ABOVE GROUND CONDUIT FEEDING ENCLOSURE AND ALL PENETRATIONS
OF CONCRETE PAD AND VALVE MANHOLE WALL WILL BE MADE OF RIGID STEEL.
CONCRETE PAD SHALL EXTEND BEYOND THE ENCLOSURE AT LEAST 6" ON ALL SIDES.
3.
4.
PROVIDE SIGN WITH 2" HIGH, 1/8 " STROKE, YELLOW LETTERS, STATING THE FOLLOWING; "THE CIRCUIT
BREAKER MUST BE LEFT IN THE ON POSITION. THIS CIRCUIT PROVIDES POWER TO THE SUMP PUMPS ON THE
UNDERGROUND HEAT DISTRIBUTION SYSTEM. FAILURE TO KEEP THIS CIRCUIT ON WILL CAUSE EXTENSIVE
AND COSTLY DAMAGE TO THE UNDERGROUND HEAT (STEAM) DISTRIBUTION SYSTEM."
VALVE MANHOLE SUMP ELECTRICAL DETAILS
Figure 3-27. Valve Manhole Sump Pump Electrical Details.
3-34
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