Pentair Pool Products Delta D2CX20-21 Installation & Service Manual With Parts List page 3

PUMP CAUTIONS AND WARNINGS
PUMP
1. Pump builds up heat and pressure during opera-
tion, allow time for pump to cool before handling or
servicing.
2. Only qualified personnel should install, operate or
repair pump.
3. Keep clear of suction and discharge openings. DO
NOT insert fingers in pump with power connected.
4. DO NOT pump hazardous material not recom-
mended for pump (flammable, caustic, etc.).
5. Make sure lifting devices are securely fastened
each time before lifting pump.
6. DO NOT LIFT PUMP BY THE POWER CORD.
7. DO NOT exceed manufacturer's recommendation
for maximum performance, as this could cause the
motor to overheat.
8. Secure the pump in its operating position so it
cannot tip over, fall or slide.
9. Keep hands and feet away from impeller when
power is connected.
10. Submersible grinder pumps are not approved for
use in swimming pools, recreational water installa-
tions, decorative fountains or any installation where
human contact with the pumped fluid is common.
11. DO NOT pump without safety devices in place.
12. For hazardous locations, use pumps that are listed
and classified for such locations.
13. DO NOT use non-explosion proof rated pumps in
locations considered hazardous in accordance with
the National Electrical Code, ANSI/NFPA 70-1993.
14. Basin must be vented in accordance with the local
plumbing codes.
IMPORTANT: Manufacturer is not responsible for
losses, injury or death resulting from failure to observe
these safety precautions, misuse or abuse of pumps
or equipment.
CONTROL PANELS
All control panels used on these grinders are UL listed
and CSA certified. Control panels mounted directly to
the basin used outdoors are UL listed and CSA
certified waterproof.
If intrinsically safe controls used in hazardous loca-
tions are required, manufacturer can furnish a UL listed
or CSA certified panel. Otherwise the installer must
obtain a source for the panel required.
LEVEL SENSING CONTROLS
Intrinsically-safe type float controls are recommended
for all applications and required for explosion-proof
service. An intrinsically safe control panel relay will
limit the current and voltage to the level controls. A
Delta control panel can be supplied with this type
circuitry.
23833A596
The float level controls maintain the basin sewage water
level by controlling pump turn-on and turn-off level.
1. The lower turn-off control should be set so that the
pump stops at approximately the top of the pump.
2. The upper turn-on control should be set above the
lower turn-off control. The exact height between the
two controls is determined by the number of pump
starts desired and the depth of the basin. A maxi-
mum of 10 starts per hour should not be exceeded.
3. The override control is set at a specified height
above the upper turn-on control.
4. The alarm control is set about 6" to 12" above the
override control.
5. No control should be set above the inlet invert.
JUNCTION BOXES
If a junction box is used in a hazardous location, it must
be an explosion-proof approved type with explosion-proof
cord connectors. Wires from the junction box must pass
through an explosion-proof seal connector.
CAUTION: No persons should be in the basin when
pump is lowered into position! DO NOT lift pump in a
manner where any failure could result in loss of life.
AIR VENTING
Air tends to trap in the pump volute when water raises in
the sump or when the pump is lowered into water after
service. To vent off this air, a small hole is drilled into
the pump volute. Be sure this vent hole is clean after
any service work on pump.
PUMP MODELS — This grinder pump is made in one
model only for use with single phase and three phase
power. Motor rating is 2 HP, 3540 RPM, 60 Hz. Also
can be used for 50 Hz. operation. Single phase is for
230 volt.
PACKAGING — Each pump is packaged with 15 feet of
power cord in a carton that is marked with Model
Number and Engineering Number. Longer cords are
available for special jobs.
INSTRUCTIONS — Instructions cover only the pump
unit. Separate instructions for the electrical control panel
and basin packaged system are included with these
items.
CAUTION: PUMP IS NOT TO BE DISASSEMBLED IN
THE FIELD EXCEPT AT CERTIFIED SERVICE STA-
TIONS OR AT FACTORY. WARRANTY IS VOID IF
PUMP IS TAKEN APART FOR ANY REASON EXCEPT
TO REPLACE GRINDER IMPELLER AND GRINDER
RING WHICH IS COVERED IN THESE INSTRUCTIONS.
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