Rain Bird HN-G-01 Filter Series User manual

NOTICE:
Changes or modications not expressly approved by Rain Bird
could void the user’s authority to operate the equipment.
WARNING
It is extremely dangerous to open the lter, or control tubing
while under pressure. Always depressureize before performing
any maintenance or troubleshooting.
HN-G-01/ 02 Filter Series
Quick Start Guide
Rain Bird Corporation
6991 East Southpoint Rd.
Tucson, AZ
85756
D42057
QR code links to digital manual

1. Estimate ow rate and record pressure
Place a 5 gallon bucket at the water source and allow it to ow without restriction into the bucket.
Time how long it takes to ll to the 5 gallon point.
Example
Volume of Bucket (in gallons) 5
x 60 =43 GPM
Time to ll bucket (in seconds) 7
Backwash requirements
A 1” lter requires 30 GPM at 40 PSI to backwash properly.
A 2” lter requires 40 GPM at 40 PSI to backwash properly.
If this ow and pressure for backwash can’t be maintained while irrigating, the ow to irrigation must be stopped
(using an optional controlled outlet valve) while the lter backwashes.
Static (and dynamic) pressures over 100 PSI require a pressure regulator.
2. Rank your water source
Flow is dependent on Water Source Quality and the micron size of the screen. The following chart denes the maximum ows allowable based
on Water Source Quality and screen micron size. Most applications will follow the Average, Poor or Very Poor lines. Water source should be rated
at worst case scenario if water quality varies during the year (such as algae blooms during summer). A general guide to Water Quality is also
shown below.
Good Average Poor Very Poor
Solids < 20 ppm < 40 ppm < 80 ppm < 110 ppm
Example Well Water, municipal
supply or equal. Clear lake water or equal River water. Brown or green water (mud/algae).
Contamination
Very little, 100% clear,
similar to drinking water
quality.
95% clear water, small
contaminants. No real
discolouration of the
water.
Light to medium
discolouration.
Heavy discolouration.
Medium algae, visible silt/
dirt etc.
Maximum Flow
Filter Size 1" 2" 1" 2" 1" 2" 1" 2"
Screen
size
400 micron
(47 mesh)
40 GPM
9 m3/h
100 GPM
22.7 m3/h
40 GPM
9 m3/h
100 GPM
22.7 m3/h
36 GPM
8.2 m3/h
55 GPM
12.5 m3/h
Not
recommended
35 GPM
8 m3/h
200 micron
(88 mesh)
40 GPM
9 m3/h
100 GPM
22.7 m3/h
37 GPM
8.4 m3/h
85 GPM
19.3 m3/h
33 GPM
7.6 m3/h
50 GPM
11.4 m3/h
30 GPM
6.8 m3/h
150 micron
(100 mesh)
40 GPM
9 m3/h
95 GPM
21.6 m3/h
33 GPM
7.5 m3/h
70 GPM
15.9 m3/h Not
recommended
40 GPM
9 m3/h Not
recommended
100 micron
(150 mesh)
30 GPM
6.8 m3/h
75 GPM
17 m3/h
25 GPM
5.7 m3/h
45 GPM
10.2 m3/h
Not
recommended

3. Installation Example
How your lter is installed will depend on how your system is structured and the specic requirements of your site. This example illustrates a
stand-alone lter installation with minimal added components in discharge plumbing like what is located on a municipal feed water source
(or pumped water where the pump is located remotely).
* User to supply
Union tting*
1/4” Connection
1/4”Tubing
Piston
1” Hydraulic drain valve
Union tting*
Union tting*
Outlet (to irrigation)Inlet (from pump)
Drain (to drain)
Unions are required for ease of maintenance and in order to make installation easier. With unions, at all recommended spots, the
lter may be removed for service and any threaded connections can also be easily accessed if any of these need to be tightened up
or resealed due to movement during shipping or installation. The drain will be a 1” union. The inlet and outlet will be either 1” or 2”
unions depending on the model ordered. Unions will make servicing and winterizing the lter much easier. A bypass loop with
bypass valve is also recommended so that the lter can be bypassed during service if required.
Drain should not discharge
under water level, or in any
way that would provide
back pressure, as this will
impede performance
The discharge needs to be
unobstructed and if longer
than 20 feet the discharge
line should be up-sized to
1.25” or 1.5” PVC.
Gauges on the inlet
and outlet are highly
recommended to be able to
monitor pressure dierential
visually.
The drain line can be swivelled 360
degrees to any discharge direction by
loosening the band clamp (remembering
to tighten it afterward).
Follow standard PVC solvent welding procedure to plumb the lter into the irrigation line.
The Inlet, Outlet and Drain line pipes need to be supported so that no stress is transferred to
the lter. Pipe support is attached to pipe with a pipe attachment. Can take various forms like
this:

4. Mechanical Installation
1. The Filter unit ships without the piston installed
2. Ensure that the o-ring is in place on the threads of the cylinder. Push the piston into the main body of lter. Ensure that the push to
connect tting at the top of the piston lines up with the 1/4: black tubing.
3. Push the 1/4" tubing into the push to connect tting at the top of the Piston.
5. Electrical Installation
5.1 Battery
1. Remove the top gray cover (push up the sides over the indent).
2. Remove the black battery tray and install the 4x “D Cell” batteries as shown.
3. The controller will come to life. It goes to sleep quickly, holding down any of the three lower buttons for a few seconds wakes it
back up.
4. Press the far right (M) button on backwash controller to test that the installation has been succesful, a Backwash sequence should
occur.
5.2 12v DC Power Adapter
5. Plug the power adapter (supplied) in to a 110v ac outlet (if outlet is outdoors a 4 gang weather protected GFCI should be used)
6. The controller will come to life. It goes to sleep quickly, holding down any of the three lower buttons for a few seconds wakes it
back up.
7. Press the far right (M) button on backwash controller to test that the installation has been succesful, a Backwash sequence should
occur.
Piston
Filter assembly
1.
O-ring
2. 3.
1. 2. 3.