Zoeller Home Guard Max 503 User manual

NOTICE TO INSTALLER: Instructions must remain with installation. SECTION: 6.10.082
FM2540
0111
Supersedes
0809
MODEL 503
WATER POWERED EMERGENCY BACKUP
SUMP PUMP SYSTEM
PVC CONSTRUCTION
PREINSTALLATION CHECKLIST
Product information presented
here reflects conditions at time
of publication. Consult factory
regarding discrepancies or
inconsistencies. MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
[phone] • 1 (800) 928-PUMP • FAX [phone]
visit our web site:
www.zoeller.com
1. Inspect your pump. Occasionally, products are damaged during shipment. If the unit or any of the parts are
damaged, contact your dealer before using.
2. Read all the installation instructions regarding installing and start up. Retain for future reference.
1. Thispumpisdesignedforhandlingclearwater.Donot
use in septic tanks to pump effluent or sewage pits to
pump sewage.
2. Repair and service of your backup system should be
performed by an authorized service station.
3. The installation of this backup pump requires the use
of a variable level float switch for operation. It is the
responsibility of the installing party, to ensure that the
float switch will not hang up on the pump apparatus or
SEE BELOW FOR LIST OF WARNINGS
1. For your protection always disconnect the power
supply from its power source before handling the
components of your primary pump.
SEE BELOW FOR LIST OF CAUTIONS
Turbulence caused by high velocity
incoming water can negatively affect the on/off action
of the float mechanism. If this condition exists, the
incoming water must be baffled to avoid excessive
turbulence.

®
REFER TO WARRANTY ON PAGE 2.
pit peculiarities and is secured so the pump will turn
“on” and “off”. It is recommended that the pit be 18"
in diameter or larger to accommodate both a primary
and a backup pump.
4. Check the installation of the primary and backup
pump floats to ensure that both move freely and are
not being encroached upon where the float cannot
move. Adequate space between the floats must be
maintained.
5. Thepump shouldbe manuallyactivated oncea month
by lifting the float rod. Let the pump run for at least 15
secondsto prevent thepump from building up calcium
deposits and debris, which could harm the pump.
© Copyright 2011 Zoeller Co. All rights reserved.
UPC
®

2
Limited Warranty
Manufacturerwarrants,tothepurchaserandsubsequentownerduring
thewarrantyperiod,everynewproducttobefreefromdefectsinmaterial
and workmanship under normal use and service, when properly used
and maintained, for a period of two years from date of manufacture.
Partsthatfailwithinthewarrantyperiod,thatinspectionsdetermineto
be defective in material or workmanship, will be repaired, replaced or
remanufactured at Manufacturer's option, provided however, that by
so doing we will not be obligated to replace an entire assembly, the
entire mechanism or the complete unit. No allowance will be made
forshippingcharges,damages,labororotherchargesthatmayoccur
due to product failure, repair or replacement.
Thiswarrantydoesnotapplytoandthere shall benowarrantyforany
materialorproductthathasbeendisassembledwithoutpriorapproval
ofManufacturer,subjectedtomisuse,misapplication,neglect,alteration,
accidentoractofGod;thathasnotbeeninstalled,operatedormaintained
in accordance with Manufacturer's installation instructions; that has
been exposed to outside substances including but not limited to the
following: sand,gravel,cement,mud,tar,hydrocarbons,hydrocarbon
derivatives(oil,gasoline,solvents,etc.),orotherabrasiveorcorrosive
substances, wash towels or feminine sanitary products, etc. in all
pumping applications. The warranty set out in the paragraph above
is in lieu of all other warranties expressed or implied; and we do not
authorize any representative or other person to assume for us any
other liability in connection with our products.
Contact Manufacturer at, 3649 Cane Run Road, Louisville, Kentucky
40211,Attention:CustomerServiceDepartmentto obtain anyneeded
repair or replacement of part(s) or additional information pertaining to
our warranty.
MANUFACTURER EXPRESSLY DISCLAIMS LIABILITY FOR
SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES OR
BREACH OF EXPRESSED OR IMPLIED WARRANTY; AND
ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR
PURPOSE AND OF MERCHANTABILITY SHALL BE LIMITED TO
THE DURATION OF THE EXPRESSED WARRANTY.
Some states do not allow limitations on the duration of an implied
warranty, so the above limitation may not apply to you. Some states
do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights and you may also have
other rights which vary from state to state.
Do’s And Don’t’s For Installing A Unit
1. DO read all installation materials supplied with the
pump.
2. DO inspect unit for any visible damage caused
by shipping. Contact dealer if unit appears to be
damaged.
3. DO clean all debris from the pit before installation.
4. DO install a union check valve (see STEP 3) in the
discharge line. DO NOT use a discharge pipe smaller
than the recommended pump discharge sizes.
5. DO install a filter or strainer in the water supply line
before the pump to prevent small particles from
clogging the operating valve.
6. DO test the pump immediately after installation to be
sure that the system is working properly.
7. DO review all applicable local and national codes and
verify that the installation conforms to each of them.
8. DO NOT use the Home Guard®Max in hot water.
DO NOT use the Home Guard®Max to remove
wastewater, sewage, effluent, or water with debris in
it.
9. DO NOT use a garden hose. Garden hose is not
designed to hold municipal pressure indefinitely
and could leak or burst causing flooding. The Home
Guard®Max requires a permanent piping method such
as copper, PEX, or CPVC.
Helpful Hints For Easy Installation
1. The system is designed for installation in sumps with
minimum of 18” diameter and 22” deep. For smaller
applications, consult factory.
2. Remove all debris from the pit before installation.
3. Be sure that the pump is clamped securely to the
primary pump discharge pipe and that the two pumps
do not interfere with each other.
4. Install a serviceable check valve in the discharge line.
5. Install a filter or strainer in the water supply line before
the pump. Size the filter/strainer properly to minimize
pressure drop, while retaining particles at least 0.020"
(0.5 mm) in diameter.
6. Test the unit immediately after installation. Refer to
STEP 5.
7. Check the Float ON/OFF levels per STEP 2 of the
instructions.
8. Obtain model number, date code, and installation
instructions before calling factory.
© Copyright 2011 Zoeller Co. All rights reserved.

3
Installation
The Home Guard®MAX pump can be installed very easily as a standby to an electric sump pump (see sketches).
However, a check valve is required between the electric pump and the Home Guard® MAX.
Note 1: Per the Uniform Plumbing Code and the Plumbing Codes of some states, installation of this product
requires the use of a RPZ backflow protection device. Contact your local plumbing or water authority for more
information regarding the requirements for your specific area.
Note 2: Per the Uniform Plumbing Codes and IAPMO PS119, the discharge of the water-powered sump pump should
not be connected to the discharge of the primary sump pump.
STEP 1: Placement of the Pump in the Pit
Note: If your pit has a cover, it will have to be modified to accommodate the Home Guard®Max pump.
1.1) Inspect the pit for debris and clean as necessary.
1.2) Place the pump in the pit, making certain that the inlet fitting of the pump is at least 6” above the basement floor
or top of the sump pit. Ensure the pump is clamped securely to the primary pump discharge pipe. Mark the
location on the discharge pipe.
IMPORTANT
This pump is to be used as a backup to your primary pump. Make certain that there is no interference
between the two pumps, especially between the float systems.
STEP 2: Float Stop Adjustment
2.1) With the Home Guard®Max pump in the pit, measure the desired float ON position (this should be a few inches
above the ON level of the existing pump). The pump turns on at a water level of 2” to 3” below the upper float
stop, depending on the incoming water pressure. Calculate the appropriate float stop location based on this
distance.
2.2) The OFF level is determined by the buoyancy of the float as well as the incoming water pressure, roughly 6” to
8” below the ON level. The OFF level must be above the suction screen of the foot valve. Adjusting the lower
float stop will not change the OFF level of the pump. It is recommended to install the lower stop tight to the
bottom of the float so that it cannot move on the float rod.
2.3) Remove the pump from the pit and adjust the float stops as necessary. Tighten all screws. Be sure to tighten
the lower stop properly so that it will not come off. If the lower stop comes off, the float will drop off the float rod,
rendering the pump non-operational and possibly damaging the pump.
2.4) Replace the pump in the pit at the same location on the primary pump discharge pipe as marked earlier (Step
1.2). This will ensure that the ON and OFF levels are consistent with the calculations.
STEP 3: Installation of the Discharge Piping
3.1) Glue the discharge pipe into the pump as shown in the figure below (reference SK2721B).
3.2) Per the Uniform Plumbing Codes and IAPMO PS119, the discharge of the water-powered sump pump should
not be connected to the discharge of the primary sump pump.
3.3) In order for this installation to work properly, a check valve must be installed onto the discharge line. The
following Zoeller check valves are recommended: 30-0100; 30-0101; 30-0102; 30-0103. Some local codes
require a union check with ball valve.
STEP 4: Installation of the Source Water Piping
4.1) Shut off the municipal water supply and plumb the tubing/piping into the municipal water supply line. This must
be branched off of a ¾" line and plumbed with ¾" tubing/piping to the Home Guard®Max . Do not use garden
hose or other flexible hose/tubing. Install a shut off valve in the ¾" supply line to the Home Guard®Max. Use
the appropriate back-flow prevention for your jurisdiction.
© Copyright 2011 Zoeller Co. All rights reserved.

4
STEP 4: (Continued)
4.2) Do not braze/solder copper fittings within 18” of Home Guard®Max, as the heat from the torch will damage the
pump body.
4.3) When assembling threaded fittings into the Home Guard®Max inlet, do not use pipe dope on the inlet threads,
use PTFE (Teflon®) sealing tape. Take special care to keep any debris (including pieces of tape) from entering
the inlet fitting that might get caught in the operating valve.
4.4) The Home Guard®Max includes a field installed Push-to-Connect fitting. This fitting is designed to be used with
¾” PEX, CPVC, or copper pipe. The fitting must be installed on the ¾" NPT thread of the pump inlet fitting.
Caution must be used when installing the fitting to not over tighten the inlet fitting and crack the body. Using a
backup wrench, hold the inlet fitting while tightening the Push-to-Connect fitting. If the Push-to-Connect fitting
is not used, the same precaution must be used when installing any other fitting to the inlet fitting.
4.5) Purge the water line prior to connecting to the Home Guard®Max to ensure that debris does not enter the unit
and clog the operating valve.
4.6) If using the Push-to-Connect fitting, cut the tube so that the ends are square. Ensure that there are no burrs or
damage to the cut end. Once the tubing end is cut square and clean, scribe a depth mark on the outside of the
tubing 1” from the end. Insert the tube through the release collar to rest against the grab ring. Push the tube
firmly with a slight twisting action until it reaches the tube stop. The depth mark should be up to the end of the
release collar. The tube liner is not necessary with CPVC or Copper tubing, and may be removed based on
preference or local codes. The tube liner can be easily removed by pulling it out with a needle nosed pliers.
4.7) Once the pump has been installed and the municipal water source connected, open the municipal water source
valve and the supply line valve. Inspect the valve body and all connections looking for leaks. Close the
municipal water valve and fix any leaks before operating the pump.
STEP 5: Testing of Pump Operation
5.1) Unplug the primary pump so that it does not start.
5.2) Fill the sump with water until the Home Guard®Max starts.
5.3) Verify that the pump starts and stops at the desired ON/OFF points.
5.4) Verify that there are no leaks in the discharge line.
5.5) If adjustment is necessary, raise or lower the stops according to STEP 2.
5.6) If the pump is not operating properly after following the above steps, refer to the Troubleshooting guide.
5.7) When finished testing, plug primary pump back into AC receptacle.
5.8) Install and adjust alarm reed switch (optional) to desired level.
WATER PRESSURE:
20 PSI minimum with valve open.
80 PSI maximum with valve open.
100 PSI maximum with valve closed.
EFFICIENCY:
The pumping capacity increases with household water pressure and flow.
At an eight-foot static head and a supply pressure of 20 PSI at water supply inlet with water flowing, it takes one (1)
gallon of supply water to remove one gallon from the sump. As the supply pressure increases with the static head
constant, less supply water is required.
Installation (Continued)
© Copyright 2011 Zoeller Co. All rights reserved.

5
SK2720 SK2721B
Typical Installation with Submersible Pump
and Separate Discharge Pipe
Dimensions
© Copyright 2011 Zoeller Co. All rights reserved.