A.Y. McDonald 747H20 User Manual
When the power goes out,
the Guardian takes over!
EMERGENCY
Water Powered Back Up
SUMP PUMP
Model 747H20
Protect your property during power
outages or sump pump failure
Designed for the following uses:
•Ground water
•Sump crocks in homes, motels and hotels, schools,
hospitals, industrial buildings, computer and record
storage rooms
Features
•Made in the USA
•Patented activation valve for Positive ON,
Positive OFF
•Designed for intermittent or continuous use
•Supplied with a backow preventer
•Made with high quality brass and PVC materials for
corrosion resistance
•McDonald Hydro Drive optimizes performance
Specications
•Designed for de-watering
•Discharge size 1 1/4” PVC Sch. 80 (IPS)
•3/4” FNPT Inlet
•Min. pressure 29, max. 90
•Min. water temperature 32°F.
PUMPS | WATERWORKS | PLUMBING VALVES | GAS VALVES
A.Y. McDonald Mfg. Co.
800.292.2737
|
FAX 800.832.9296
|
The Guardian
consists of all
components
outlined in blue
pumps@aymcdonald.com
|
www.aymcdonald.com
®
10/11
Drive
water from
city water
supply
Discharge
pipe
Pressurized city water from
Point A is converted to high
velocity at the nozzle (Point
A
B). This velocity creates a
vacuum at the top of the
nozzle where flow enters
the venturi.
B
The vacuum draws water
through the suction screen,
removing water from the
sump through point C.
C
Water from
sump
Suction
screen
Sump Pump Operation
No Water Removed
5’ 7’ 9’ 12’ 15’ 18’ 21’ No Flow At:
30
480 420 360 228 192 0 0 18’
40
672 594 558 468 396 324 246 26’
60
750 750 750 750 750 750 750 40’
Inlet Pressure (PSI)
Water Powered
Performance in GPH
FEET of LIFT
®
BACKFLOW
OPTIONS
ORDER MODEL 747H20-0001** 747H20-0002**
BACKFLOW PROVIDED 3/4” Reduced 3/4” Pressure vacuum
pressure assembly breaker assembly
ASSE STANDARD 1013 1020
OTHER APPROVALS
**Where required by code
Approved by the Foundation
for Cross-Connection Control
and Hydraulic Research at the
University of Southern California
Approved by the Foundation
for Cross-Connection Control
and Hydraulic Research at the
University of Southern California
Radon Ready
Model 747H20RR
Allows operating valve to
be installed under cover for
application where sump lid
must be sealed.
PUMPS | WATERWORKS | PLUMBING VALVES | GAS VALVES
A.Y. McDonald Mfg. Co.
800.292.2737
|
FAX 800.832.9296
Operating valve
below sump lid
|
pumps@aymcdonald.com
|
www.aymcdonald.com
10/11
Loading...