3
The DC controller is equipped with a charger for maintaining the battery in a
ready state and recharging the battery after use when AC power is restored.
Time for recharge depends upon the amount of power consumed by the pumping
cycle during the AC power interruption. The pump may go back to the ready
run position in a very short period of time. A completely drained battery may
require up to 3 days for full recharge. If battery does not charge properly, the
LED battery will flash red.
PERFORMANCE
The DC pump performance at 12.7 Vdc
BATTERY SELECTION
Discharge
Feet of Head
5
(1.5 m)
10
(3 m)
14.5
(4.4 m)
Flow
GPM (LPM)12.7 volts
22
(83)
11
(42)
Shut-off
Head
The DC emergency pump system requires a good quality, 12 volt battery to
obtain maximum pumping time during a power outage. A deep-cycle, 12 volt, 90
amp-hour or larger marine battery is recommended. A 100+ amp hour battery
will provide approximately 7.5 hours or more of continuous pumping time in a
sump pump installation with 8' (2.4 m) of head pressure. In most installations, the
pump runs intermittently and the battery life is extended accordingly. Batteries
with top terminals are recommended for ease of installation. "Wet" cell batteries
contain acid, and proper precaution must be taken when handling. Battery
box will accommodate a maximum battery size of 13-1/2" (34.3 cm) Length x 7"
(17.8 cm) Width x 9-1/2" (24.1 cm) Height. AGM batteries also recommended.
Do not use gel batteries or automotive batteries.
© Copyright 2021 Zoeller
®
Co. All rights reserved.
9. Install the operational float switch bracket above the "on" level of the
primary pump using the clamp provided. Make certain the clamp is tight
on the pipe to avoid slippage. Ensure that the "off" level of the float is 1"
(2.5 cm) minimum above the outlet of the DC backup pump. Position the
pumps in the sump and move float up and down, ensuring free movement
without interference from any obstructions inside the sump or lid. The
float switch can be moved on the discharge pipe, or the rubber stops can
be adjusted as necessary. Cut extra float rod length below lower float
stop to prevent debris from interfering with float operation.
10. Mount the Key
™
Controller to a sturdy location using the zip tie provided,
or to the battery box.
11. Connect the leads from the controller to the battery terminals. Positive
(+) lead to positive terminal and black neg. (-) lead to negative battery
terminal.
CAUTION
Correct battery hook-up is essential for operation of the
system. Use wing nuts supplied with battery and eyelet connectors on
battery wire leads. On batteries with different sized posts, the positive
terminal is the larger post, 3/8" (10mm) diameter. The smaller post, 5/16"
(8mm) diameter, is the negative terminal. This will be indicated on the
battery. Apply grease to the terminals to help prevent corrosion.
12. Connect the plugs for the pump, operational switch, and power supply
into the appropriate receptacles on the controller.
13. Plug the controller into the 115 V wall outlet. The primary sump pump and
the controller should be on separate circuits.
14. After verifying all connections are good, reconnect power to the primary
sump pump.
1. The installation kit includes the necessary fittings and parts needed to install
as in Figure 1. A check valve is incorporated in the discharge of the backup
pump.
2. Remove all parts from the shipping carton, and make sure all parts are
included.
3. Select a location for the battery and the controller. The controller must be
within 6' (1.8 m) of a 115 V wall outlet and within 6' (1.8 m) of pump and basin.
Is recommended that the controller is plugged into a separate circuit from the
primary pump.
NOTE: Do not install in small spaces where the controller will not be
properly cooled.
4. If the primary pump is installed, disconnect power.
NOTE: Discharge piping must be 1-1/2" SCH 40 PVC
5. Remove the discharge pipe from the pump and place it aside.
6. Solvent weld DC pump to tee at a 30 degree angle as shown in Figure 4. Install
in-line check valve into primary pump discharge.
7. Determine the position of the DC pump and measure between the in-line
check valve and tee. Use that measurement to cut discharge pipe. Solvent
weld that piece first to the tee. Measure, cut & solvent weld any remaining
discharge piping above the tee. Finally, connect the discharge pipe to the in-
line check valve and tighten hose clamp. See Figure 4.
NOTE: Check float operations to ensure the hose clamp screws do not
interfere with the float operation of the primary pump.
8. Assemble the operation float assembly per Figure 3. Install float switch as
seen in Figure 1.
INSTALLATION
1
9
5
10
2
3
4
6
12 VOLT BATTERY
SUPPLIED BY USER
8
11
7
SK3321
Model 507 Key
Item
Description
Qty
507-G
06/21
thru Current
1
Pump 12 V DC / backup (service part)
1
156790
2
Battery box asm (box and cover)
1
10-0764
3
Operational float switch
1
155654
4
Clamp, #28 worm-SS (float switch)
1
004287
5
Valve, check / 1.5" (DN40) Inline /
vertical
1
019768
6
Key controller
1
157387
7
Fuse, 30 amp automotive
1
016918
8
Cable ties, 11.5" long
2
157389
9
Fitting, PVC 1-1/2" (DN40) tee/SCH 40
(pressure fitting)
1
005645
10
Hardware pak, charger /switch mode
1
152864
11
Power Supply
1
157388
