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INSTALLATION
OVERVIEW
This submersible sump pump is designed for home sumps. The
permanent split capacitor motor is oil filled, sealed for cooler
running, and has automatic-reset thermal protection. Ball
bearings on the motor shaft never need lubrication. The power
cord is a 3-wire, grounding-type cord.
INSTALLATION
1.
Install pump in sump pit with minimum diameter of:
11" (279 mm) for models equipped with vertical
switches
Sump depth should be:
13" (330 mm) for vertically switched models.
Construct sump pit of tile, concrete, steel or plastic.
Check local codes for approved materials and for proper
installation.
13" Min. with
Vertical Switch
18" Min. with
Tethered Switch
15" Min. with
Diaphragm Switch
Figure 1 - Sump Pit
2.
Install pump in pit so that switch operating mechanism has
maximum possible clearance.
3.
Pump should not be installed on clay, earth or sand surfaces.
Clean sump pit of small stones and gravel which could clog
pump. Keep pump inlet screen clear.
Check valve
Air lock hole
Figure 2 - Air Lock Hole
4
10" Minimum
with Vertical and
Diaphragm Switch
14" Minimum
with Tethered Switch
Sump Pit
Hard Surface –
No Sand, Clay,
Gravel
4824 1216
4. Install discharge plumbing. Use rigid plastic pipe and wrap threads
with PTFE pipe thread sealant tape. Screw pipe into pump hand
tight plus 1-1/2 turns. Do not use ordinary pipe joint compound on
plastic pipe as it can attack plastics.
If a flexible discharge hose is used, make sure pump is secured
in sump to prevent movement. Failure to secure pump may allow
pump movement, switch interference and prevent pump from
starting or stopping.
5. To reduce motor noise and vibrations, a short length of rubber
hose (1-7/8" (47.6mm) I.D., e.g. radiator hose) can be connected into
discharge line near pump using suitable clamps.
6. Install an in-line check valve or an in-pump check valve to
prevent flow backwards through pump when pump shuts off.
Purchase an FP0026-10 (goes in the discharge line) or FP0026-
6D (goes in the pump discharge).
NOTE: If check valve is not equipped with an air bleed hole to
prevent airlocking pump, drill a 1/8" (3.2 mm) hole in discharge
pipe just above where the discharge pipe screws into the pump
discharge. Be sure the hole is below the waterline and the check
valve to prevent air locks.
7. Power Supply: Pump is designed for 115 V., 60 Hz., operation and
requires a minimum 15 amp individual branch circuit. Both pump and
switch are supplied with 3-wire cord sets with grounding-type plugs.
Switch plug is inserted directly into outlet and pump plug inserts
into opposite end of switch plug.
Risk of electric shock. Can shock, burn or kill. Pump
should always be electrically grounded to a suitable electrical
ground such as a grounded water pipe or a properly grounded
metallic raceway, or ground wire system. Do not cut off round
ground pin.
8. If pump discharge line is exposed to outside sub-freezing
atmosphere, portion of line exposed must be installed so any water
remaining in pipe will drain to the outfall by gravity. Failure to do this
can cause water trapped in discharge to freeze which could result in
damage to pump.
MY965-R (06-24-20)
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