APP DC-139 User manual

INSTALLATIONMANUAL
12-VOLT EMERGENCY BATTERY SUMP PUMP SYSTEM
The DC-139 is a battery operated back-up sump pump. It does not
replace a regular pump. It is designed to provide protection in the
event household electrical power fails.
HUNG PUMP INDUSTRIAL CO., LTD. TAIWAN, R.O.C.
MODEL DC-139
ELECTRICALPUMPAND
BATTERYNOTINCLUDED


THANK YOU FOR PURCHASING AN APP PUMP.
Takethetimetoreadtheinstructionscarefullybeforeusingthisappliance.Westrongly
recommendthatyoukeepthisinstructionmanualinasafeplaceforfuturereference
General Materials needed for Battery back-up sump pump
PUMP INSTALLATION
- Teflon tape.
- Desired length of PVC or ABS pipe and fittings, to link up back-up pump discharge to existing discharge
pipe.
TOOLS
- Screwdrivers, hacksaw to cut pipe, knife to assist in pipe cutting, round file to smooth pipe ends, pipe
wrench, and adjustable wrench to tighten fittings, propane torch and welding material.
BATTERY
- Use only a new fully charged 12 Volt deep cycle marine battery. Electrolyte level must be checked and
maintenance must be done in accordance with manufacturer’s guideline.
- Battery sizes that will fit into the battery box are 24C, 24VCM, 27C, 27CM, and 27F.
- Battery recharge time will be different at each installation. Under normal conditions it will take two to four
days to bring a deep cycle battery back to full charge after it has been discharged. If electrical power to the
house is lost more than once a week, consider keeping a spare, fully-charged battery to replace an
exhausted battery for the standby sump pump.
After each start, the pump will run for 5 to 30 seconds after the float return to it’s original position.
READ THESE RULES AND INSTRUCTIONS CAREFULLY.
1. Before installing or servicing your pump:BE CERTAIN pump power source is disconnected.
2. Plumbing and electrical wiring must adhere to state and local codes. Check appropriate community agencies,
or contact local electrical and pump professionals.
3. Keep the battery box in a cool, dry, well ventilated area away from sparks or flames. Battery exposure may
result in an explosion or fire.
4. Beware of battery acid; it is very corrosive.
5. BATTERY MAINTENANCE (every 3 months on batteries with removable top caps): Unplug battery
charger. Measure the specific gravity of the electrolyte in each cell with a hydrometer. If the specific gravity falls
below 1.225 in any one cell or varies more than .050 between all the cells, replace the battery. Check the
electrolyte level and fill as required. Check battery terminals and clamps for tightness and corrosion; service as
required. Plug battery charger back in.
6. Replace the battery if the back-up pump operates for an extended period and severely discharges the battery.
We recommend battery replacement every 3 years regardless of system use.
7. When servicing the pump, use care:
♦Disconnect power at main electrical service box by turning circuit breaker off or by removing the fuse.
♦Disconnect battery charger from wall outlet.
♦DO NOT lift pump by the power cord.
8. This system is intended for back-up use during power outage, not as a primary pump. DO NOT RUN DRY.

INSTALLATION STEPS
Installation of this unit may take several hours. Before disabling your main pump, have ready appropriate
means of evacuating the sump.
STEP 1 Unplug the main AC pump when installing the backup pump to avoid
electric shock. Failure to do so could cause serious injury or death.
STEP 2 Check valve: If you install your emergency 12 V pump using the same
discharge pipe of your main 115V pump, a check valve is required
between the T or Y connection and both pumps. We supply a check
valve with this back-up pump system. Be sure your main 115V pump is
equipped with a check valve (see Figure.1). These check valves are
required to prevent backflow to the sump pit.
STEP 3 We strongly suggest to run your discharge pipe with 1 1/2" rigid PVC
piping.
STEP 4 The back-up pump must be installed at 45° angle (see Figure. 2) to
prevent airlocking.
STEP 5 Screw the supplied adaptors and check valve to the pump discharge
using TEFLON tape (see Figure. 3).
STEP 6 Glue a 45° fitting to the check valve to maintain the pump in same
position as per picture 2 and 3.
STEP 7 Measure and cut a discharge pipe so that back-up pump is 4" to 8"
above the bottom of the sump pit.
STEP 8 Connect the discharge pipe of back-up pump to the discharge pipe of
the main pump using a Y and a 45° fitting as per Figure. 4.
STEP 9 Be sure all connections are well glued.
STEP 10 Attach the float switch to the back-up pump discharge pipe using the
enclosed tie-wrap, as per Figure. 4. The standby pump’s float switch
should be installed so that it will not activate until standby pump's inlet is
under water. Make sure power wires do not interfere with float switch or
pump inlet.
STEP 11 Place battery box within 3 feet of the sump and install an 115V AC
separately fused outlet within 5 feet of the control box. The electrical
outlet must be protected by a ground fault circuit interrupter (GFCI). The
area must be also clean, dry and well ventilated.
Figure. 1
Figure. 2
Figure. 3
Figure. 4

STEP 12 Fix the control box to the battery box.
STEP 13 Plug the float switch, pump and charger to the appropriate connector as
per Figure. 5. Test pump operation by filling the sump with water while
the main AC pump is unplugged. If the pump operates properly, plug the
charger into the GFCI protected outlet to keep the battery charged.
STEP 14 Protect electrical cord from sharp objects, hot surfaces, oil and
chemicals. Avoid kinking the cord and replace damaged components
immediately.
The control box contains a multi-colored indicator lights.
1- The green charged light indicates a full charge.
2- The red battery low light indicates a low voltage.
3- The yellow charging light indicates a charge function in process.
4- The red reversed light indicates a reverse connection on the battery cables.
5- The alarm selector can be put in on or off position as per your choice. If the alarm turns on, the
red alarm light will turn on.
6- To test the pump operation, push the pump test button.
7- To stop the alarm, if in on position, push the reset button.
Note that if activated, the alarm will turn on as soon as the pump turns on. This will warn you
that the pump turned on due to a power failure or a primary pump failure.
SPARE PARTS LIST
NO Material
1 Upper box cover
2 Lower box base
3 Alternative handles (2)
4 Screws (4)
5 PVC ties (4)
6 Black belt
7 Float
8 Pump
9 Impeller & lock washer
10 Pump O -Ring
11 Volute
12 Suction screen
13 Reducer 1" to 1 1/4"
14 90° Elbow
15 1 1/4” check valve
16 AC Adaptor
17 Control box
18 Big head screws (4)
19 Battery cable clamp
Figure. 5