RainFlo RF4 Series User manual

Operaon & Installaon Instrucons
RF4 Series
RainHarvest - Standard Systems
System Rated Flow System Rated Flow
RF4-2
RF5-2
RF6-2
2 gpm
RF4-5C
RF5-5C
RF6-5C
5 gpm
RF4-3
RF5-3
RF6-3
3 gpm
RF4-10C
RF5-10C
RF6-10C
10 gpm
RF4-6
RF5-6
RF6-6
6 gpm
RF4-15C
RF5-15C
RF6-15C
15 gpm
RF4-11
RF5-11
RF6-11
11 gpm
RF4-25C
RF5-25C
RF6-25C
25 gpm
RF4-15
RF5-15
RF6-15
15 gpm
RF4-40C
RF5-40C
RF6-40C
40 gpm
RF4-21
RF5-21
RF6-21
21 gpm
RF4-C Series RF5/6 Series RF5/6-C Series

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Congratulaons on purchasing this ultraviolet disinfecon system. By purchasing a RainHarvest
Systems UV Disinfecon system you are receiving not only a high quality product but also peace of
mind. Protecng your water supply with a UV system gives you reassurance that your family will
have access to safe drinking water throughout your enre home with no chance of microbiological
contaminaon. This is chemical free process which is simple in its concept and eecve in
its abilies to inacvate microorganisms present in the water supply. Simple maintenance,
connuous disinfecon and ulmately safe water, RainHarvest Systems makes it that easy.

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TABLE OF CONTENTS
Safety Consideraons ......................................................................................................... 4
Before You Begin ................................................................................................................ 4
Water Quality Parameters .................................................................................................. 5
Assembly ............................................................................................................................ 6
System Sizing ...................................................................................................................... 8
Locaon .............................................................................................................................. 8
Installaon ......................................................................................................................... 9
System Disinfecon .......................................................................................................... 12
Cleaning the Quartz Sleeve .............................................................................................. 12
Cleaning the UV Sensor .................................................................................................... 13
Operaon ......................................................................................................................... 13
RF Controllers ........................................................................................................ 14
RF5 & RF6 Controllers ............................................................................................ 14
RF5 & RF6 Power-up Sequence .............................................................................. 14
RF5 Operaonal Screens ........................................................................................ 15
RF6 Operaonal Screens ........................................................................................ 15
Lamp Countdown Sequence .................................................................................. 16
Lamp Replacement (RF4 systems) ......................................................................... 17
Lamp Replacement (RF5 & RF6 systems) ............................................................... 17
QR Codes ............................................................................................................... 17
System Troubleshoong......................................................................................... 18
Temperature Management Devices ................................................................................. 20
Expansion Modules .......................................................................................................... 20
RainHarvest Systems Standard Output System Specicaons ......................................... 22
RainHarvest Systems High Output System Specicaons ................................................ 23
Limited Warranty Statement: ........................................................................................... 24
Warranty Registraon ...................................................................................................... 25

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Safety Consideraons
Although your UV system has been manufactured to the highest safety standards, care must be
followed when operang and/or maintaining your system.
1. Before servicing this equipment, disconnect the power cord from the electrical outlet.
2. Energy given o by the UV lamp is harmful to your eyes and skin. NEVER look directly
at an illuminated UV lamp without adequate eye protecon and always protect your skin
from direct exposure to the UV light.
3. For complete disinfecon, use ONLY genuine replacement parts.
4. Do not operate the unit if it has any damaged or missing components.
5. To avoid possible electrical shock, use only with a properly grounded electrical outlet.
6. Never perform any maintenance to the system unless you are comfortable in doing so.
Contact the manufacturer for service instrucons if required.
7. Do not use this system for any purpose other than what it was intended for. Misuse of this
system could potenally cause harm to the user or others.
8. Your system is intended to be installed indoors and away from leaking plumbing. DO NOT
plug the unit in if the system or any of the components are wet.
9. The disinfecon system should be directly installed into a ground fault circuit interrupter
(GFCI). If the use of an extension cord is required, the cord must be manufactured with a
minimum of 16 gauge wire and care should be taken to avoid potenal tripping hazards.
10. We recommend that a licensed plumber or cered technician install the system.
Before You Begin
The following will be needed for installing the UV system:
Tools
• Pipe cuer, hacksaw or other specialized tools required to cut into your exisng
plumbing (e.g. if you have PEX piping)
• Soldering tools (torch, ux, emery cloth and solder)
• Wrench (for ghtening ngs)
Other Materials
• Inlet/outlet connecons
• Teon™ tape

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Water Quality Parameters
UV disinfecon is extremely eecve against microorganisms but only if the UV light can pass
through the water it needs to treat. This means that the quality of your water is very important
in order to ensure complete disinfecon.
Treated water should be tested for at the least the parameters listed below. If the water exceeds
the listed parameters RainHarvest Systems strongly recommends that appropriate pretreatment
equipment be installed (equipment required will depend on parameters being treated):
Hardness: <7 gpg (120 mg/L) – if hardness level is 7 gpg or slightly below the
quartz sleeve must be cleaned periodically in order to ensure e-
cient UV penetraon; if above the water must be soened.
Iron (Fe): <0.3 ppm (0.3 mg/L)
Manganese (Mn): <0.05 ppm (0.05 mg/L)
Turbidity: < 1 NTU
Tannins (organics): <0.1 ppm (0.1 mg/L)
UVT (transmiance): >85% (Please contact RainHarvest Systems if water has a UVT that is
less than 80% for pre-treatment recommendaons)
You can have your water tested at a private analycal laboratory or by your local dealer. It
is always recommended to install pre-ltraon of at least 5 microns prior to a UV disinfecon
system.

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Assembly
Unpack the system and ensure all the components are included with the system. Your system is
shipped with the following components:
RainHarvest Systems (Standard output lamp systems)
CONTROLLER
GLOW PLUG
(RF5 units only)
UV SENSOR
(RF6 units only)
4.1 SYSTEMS
RF4
5.1/6.1 SYSTEMS
RF56
300016 Complete Assembly
310026 Teon Plug
310040 O-Ring
390007 Brass Nut
RF-S1 RF4/RF5/RF6-06,
-10, -15 series
RF-S2 RF4-20, RF5-20,
RF6-20 series
GLAND NUT
O-RING
SLEEVE SPRING
QUARTZ SLEEVE
REACTOR
UV LAMP
320006
310038
RF-L210 “-02” series
RF-L290 “-03” series
RF-L470 “-06” series
RF-L820 “-10” series
RF-L850 “-20” series
RF-L999 “-15” series
310039
RF-Q210 “-02” series
RF-Q290 “-03” series
RF-Q470 “-06” series
RF-Q820 “-10” series
RF-Q850 “-20” series
RF-Q999 “-15” series
300083 “-02” series
300050 “-03” series
300052 “-06” series
300054 “-10” series
300061 “-15” series
300068 “-20” series
LAMP KEY

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RainHarvest Systems (High output lamp systems)
CONTROLLER
GLOW PLUG
(RF5 units only)
UV SENSOR
(RF6 units only)
GLAND NUT
O-RING
SLEEVE SPRING
QUARTZ SLEEVE
REACTOR
UV LAMP
4.1 SYSTEMS
RF4-C
(ts all units)
5.1/6.1 SYSTEMS
RF56-C
(ts all units)
POWER CORD
300016 Complete Assembly
310026 Teon Plug
310040 O-Ring
390007 Brass Nut
RF-S3 Standard series
260004 North American
260005 Euro
260006 Brish
260008 Australian/New Zealand
320006
310038
RF-L210C “-05” series
RF-L330C “-10” series
RF-L420C “-15” series
RF-L600C “-25” series
RF-L950C “-40” series
310039
RF-Q210 “-05” series
RF-Q330 “-10” series
RF-Q420 “-15” series
RF-Q600 “-25” series
RF-Q950 “-40” series
300062 “-05” series
300063 “-10” series
300064 “-15” series
300007 “-25” series
300009 “-40” series
LAMP KEY

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System Sizing
All RainHarvest Systems UV systems are rated for a specic ow rate in water that meets
the quality parameters on page 5. PLEASE NOTE that increasing the ow above this rang
or disinfecng water that does not meet the quality parameters will decrease the dose and
therefore compromise the microorganism inacvaon.
If you need to determine your maximum ow rate, you can ll a 1 gallon bucket with water and
me how long it takes to ll up. It is always beer to oversize your system then to undersize. For
example, if your pump delivers 8 gpm it is recommended to install any of the 10 gpm systems.
Locaon
For Point of Entry (POE) systems, choose a locaon where the main cold water line is accessible.
The system must be installed aer other water treatment equipment (soener or lters), but
before any branches (See Figure 1). For Point of Use (POU) systems, install the unit just before
the faucet. RainHarvest Systems recommends that a 5 micron lter be installed before the UV
system for a nal polishing step before the water is disinfected.
Figure 1. Recommended POE Installaon Locaon
To facilitate lamp removal, ensure there is enough space at the lamp connector end to safely
remove the UV lamp and/or quartz sleeve (See Figure 2).
The controller will require a ground fault circuit interrupter (GFCI or GFI) outlet and should be
mounted beside or above the reactor.
PLEASE NOTE: All RainHarvest Systems UV disinfecon systems are intended for indoor use only
as they should not be exposed to the elements.

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Installaon
Step 1: The reactor can be installed either horizontally or
vercally using the clamps provided. Vercal installaon is
the preferred method with the inlet at the boom (lamp
connecon at the top) as it allows any air that may be in the
lines to be easily purged from the system.
Step 2: The use of a by-pass assembly is recommended as
it will allow you to isolate the UV reactor. This will allow for
easier access in case maintenance is required (See Figure 3).
Step 3: Use the supplied fasteners to mount the UV
reactor to wood or drywall. If mounng to an alternate
material you will need to purchase the proper corresponding
fasteners.
Step 4: For water supplies where the maximum ow rate
is unknown, a ow restrictor is recommended so that the
rated ow of your parcular UV system is not exceeded. The
ow restrictor should be installed on the inlet port of the
reactor.
Step 5: It is recommended to have a licensed plumber
connect the UV reactor to the water supply and may be a
requirement depending on where you are located.
Figure 3. By-pass assembly
Note: Installaon of your UV disinfecon systems shall comply
with applicable provincial/state & local regulaons.
Figure 2. Lamp Removal
Spacing
leave at least
an addional
reactor length
to facilitate
lamp and
sleeve removal

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Step 6: Once the system has been plumbed in, gently remove the
quartz sleeve from its packaging being careful not to touch the length
with your hands. The use of coon gloves is recommended for this pro-
cedure as oils from the hands can leave residue on the sleeve and lamp
which can ulmately block the UV light from geng to the water.
Carefully slide the sleeve into the reactor unl you can feel it hit the
opposite end of the reactor. Align the sleeve so it centered along the
length of the reactor, then gently push it in to lock it into the inter-
nal centering springs in the far side of the reactor. CAUTION: Pushing
too hard when the sleeve is not aligned can damage the centering
springs. Slide the o-ring onto the sleeve unl it is bued up against
the reactor.
Figure 4. Quartz
Sleeve Installaon
Step 7: Hand ghten the provided gland nut over the quartz sleeve onto the threaded end
of the reactor. It has a posive stop to prevent over-ghtening. A rm force may be required to
fully ghten the gland nut, but DO NOT USE TOOLS for this step. Insert the provided stainless
steel compression spring into the quartz sleeve. The spring works with the lamp and LUMI-Loc™
connector to create the proper lamp alignment. PLEASE NOTE: DO NOT install a UV lamp inside
the quartz sleeve without the sleeve spring in place.
Step 8: Install the UV sensor (RainHarvest Systems systems only). Align the at poron so it
faces the gland nut end and matches up with the half metal lip on the sensor port (see Figure 5).
Insert the sensor so it is fully seated and hand ghten the sensor nut.
Figure 5. UV Sensor Installaon Figure 6. IEP Connecon
Step 9: The reactor is now ready for water ow. When all plumbing connecons have been
completed, slowly turn on the water supply and check for leaks. Make sure the by-pass valves are
funconing properly and that the water is owing through the reactor. The most common leak
is from the o-ring not making a proper seal on the reactor. For new installaons, review steps 6
and 7. For older systems drain the reactor, remove the o-ring, dry it and reapply silicon grease.
Reinstall the o-ring ensuring that it is properly sealed against the reactor and check again for
leaks.
Step 10: Mount the controller to the wall so it is above or beside the reactor to ensure that
no moisture can deposit on any of the connecons (see Figure 1). Always mount the controller
vercally. For monitored systems, insert the sensor connector into the IEP port located on the
right side of the controller (Figure 6). For the sensor to be recognized by the controller, the
controller power must be plugged in last. Do not plug the controller power cord in before the
last step.

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Step 11: Always hold UV lamps by their ceramic ends, not by the lamp quartz. Remove the lamp
from its packaging. Again, the use of coon gloves is recommended. Remove the lamp key from
the lamp’s connector and set it aside for the next step. Be careful to not touch the key’s exposed
contacts. Insert the UV lamp into the reactor, being careful not to drop it.
Step 12: Install the lamp key into the controller (RF5, RF6 systems only). The key always comes
packaged with the lamp and sits on the connector. With the key removed from the lamp, orient
it so the label is upright and facing you. The key will plug into the lamp key port on the right side
of the controller (Figure 8).
Step 13: Plug the LUMI-Loc™ lamp connector into the lamp. Note the keying for proper
alignment (see Figure 7a, 7b). Insert the lamp connector into the gland nut and turn the
connector approximately ¼ turn to lock the connector to the gland nut as in Figure 9.
Figure 8. Lamp Key Installaon Figure 9. Connector
Step 14: Tighten the capve ground screw to the ground lug on the UV reactor to ensure proper
grounding.
Figure 10. Ground Screw Connecon
Step 15: Your system is now ready to be plugged into the appropriate GFCI protected outlet.
Refer to the following secon before any water is allowed to ow through the system.
Figure 7a. Standard Output UV
Lamp Connecon
Figure 7b. High Output UV
Lamp Connecon

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System Disinfecon
With a new installaon, or any me the UV system is shut down for service, without power, or is
inoperave for any other reason, the lines in the home or facility could be contaminated. Use the
following steps to fully disinfect the lines throughout the enre home or facility.
Step 1: Check for and remove any “dead ends” in the lines throughout the home as these can
harbor bacteria. Plug in the UV system and wait unl it is ready for operaon.
Step 2: Remove the lter cartridge from the last sump and ll it with 1-2 cups of household
bleach (most are 5.25% chlorine). Replace the sump and slowly turn on the water supply.
Step 3: At a water outlet, run the water unl bleach can be smelled. Repeat this for all faucets,
toilets, shower heads, refrigerators, outdoor taps, the washing machine, dishwasher, etc. at the
home or facility. Once nished, wait a minumum of 30 minutes before connuing.
Step 4: Reinstall the lter cartridge into the sump and ush the chlorine soluon by opening
all faucets unl chlorine can no longer be detected. Your home has now been completely
disinfected with your UV system ready to inacvate any microorganisms that enter the home.
Cleaning the Quartz Sleeve
Depending on the water quality, the quartz sleeve may require periodic cleaning. At a minimum,
the quartz sleeve should be cleaned on an annual basis. The following steps outline a basic
cleaning procedure.
Step 1: If a by-pass assembly is installed, shut the inlet valve o to prevent water ow through
the system. Otherwise, turn o main water inlet valve (and/or turn o the water pump).
Step 2: Disconnect power cord of UV system from electrical outlet.
Step 3: Release water pressure by opening a downstream faucet and then close the outlet
shut-o valve (if any). If there is no outlet shut-o valve, expect water to drain from the system
as the head pressure in the system will cause the water to ow back down.
Step 4: Remove the capve ground screw from the ground lug on the UV reactor.
Step 5: Remove the lamp connector from the reactor (gland nut) by pushing the LUMI-loc
connector in and turning it ¼ turn counter-clockwise. Disconnect the lamp connector from the
lamp. CAUTION: the lamp may be hot!
Step 6: Being careful to touch only the ceramic ends, remove the lamp out of the reactor.
Step 7: Unscrew the gland nut from the reactor exposing the end of the quartz sleeve.
Step 8: Remove the quartz sleeve and o-ring by gently twisng and pulling the quartz sleeve.
Step 9: Using a so, lint-free cloth or towel wipe the sleeve down using a commercial scale
cleaner (i.e. CLR® or LIME-A-WAY®). This removes scaling or iron deposits that may be on the
outside of the quartz sleeve. Be careful not to get any moisture or liquids inside of the sleeve.
Step 10: Dry the sleeve with separate cloth.

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Step 11: Replace the o-ring and slide the sleeve back into the reactor following steps 7 and 8
from the installaon secon of the manual.
Cleaning the UV Sensor
Depending on the water quality, the UV sensor may require periodic cleaning. At a minimum,
the UV sensor should be cleaning on an annual basis. The following steps outline a basic cleaning
procedure.
Step 1: If a by-pass assembly is installed, shut the inlet valve o to prevent water ow through
the system. Otherwise, turn o main water inlet valve (and/or turn o the water pump).
Step 2: Disconnect power cord of UV system from electrical outlet.
Step 3: Release water pressure by opening a downstream faucet and then close the outlet
shut-o valve (if any). If there is no outlet shut-o valve, expect water to drain from the system
as the head pressure in the system will cause the water to ow back down.
Step 4: Place something under the reactor to catch any water that may come out of the
reactor during the removal of the UV sensor.
Step 5: Unscrew (counterclockwise) sensor nut from the reactor and pull the sensor slowly out
of the sensor port.
Step 6: Holding the sensor in your hand wipe the at poron (sensor face) of the sensor with
isopropyl alcohol using a clean lint-free cloth.
Step 7: Replace sensor following step 9 from the installaon secon of the manual.
Operaon
UV systems come with a feature laden controller that incorporates both the lamp driver (ballast)
and control features in one water-ght case. Four main controllers are available for the UV
systems (depending on your model). All four models feature a power factor corrected, constant
current lamp driver with a universal power input.
Please Note: While the LED or display screen is red and the buzzer is sounding the water from
the system should NOT be consumed. If any water does pass through the system during this
period, please follow the disinfecon procedure as outlined in this manual before the water is
consumed. For RF4 and RF5 systems, even though they have a visual and audible warning built
into the controller, a green LED or status screen does not necessarily indicate that the water
coming from this system is in fact potable (safe to drink). These systems do not measure the level
of disinfecon; they simply measure the “on-o” status of the lamp. Please have your water
checked for microbiological contaminants on a regular basis.

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RF4 Controllers
RF4
Series
RF4-C
Series
Simplisc in operaon, these systems feature a tri-colour
LED that indicang system status and a 4-digit display to in-
dicate lamp life remaining. Pressing the buon will change
the display to indicate total running me. When the UV lamp
is on and within its operang age, the LED will be green.
When the UV lamp is not on or the lamp life has expired,
the LED will be illuminated red and an audible buzzer will be
sounding. To remedy this condion, the UV lamp must be
replaced with a new genuine RainHarvest Systems UV lamp.
RF5 & RF6 Controllers
RF5 / RF6
Series
RF5-C / RF6-C
Series
A full colour LCD screen provides the user with a detailed
descripon of the system’s performance in addion to pro-
viding any applicable fault messages and system diagnoscs.
The controllers used in both the RF5 and RF6 are idencal.
The dierence is that the RF6 series of products includes a
UV intensity monitor. All RF5 and RF6 controllers include an
“innite expandability port” located on the right side of the
controller. Simply plug in an oponal UV sensor module into
the expandability port of a RF5 controller and the system
will now monitor the UV intensity of the system!
RF5 & RF6 Power-up Sequence
On start up, the controller will run through a diagnosc start-up and the sequence will be
displayed as follows on the colour LCD:
Next, the controller checks for and inializes any oponal modules that may be aached to the
system.
Oponal Modules Check
- UV Sensor
- Solenoid
- 4-20 mA
- WIFI
- Remote Alarm
- Flow Meter
OR

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A nal module screen is displayed showing which specic modules were inialized.
The controller then displays the lamp opmizaon screen for 60 seconds to allow the lamp to
reach its opmum output. Finally, a nal “start-up complete” screen is displayed. The system will
now be ready to disinfect water ow.
all detected modules lamp reaching max output successful start-up
RF5 Operaonal Screens
On systems without the UV monitor, the default screen shows the Home Screen. At any point
during operaon the user is able to scroll through the Home Screen, Lamp life remaining, QR
Code, Contact Info and Maintenance Parts screens by pressing the buon located on the front
of the controller.
RF6 Operaonal Screens
On systems with the UV monitor, the system will display the same screens as on the RF5 except
the UV Intensity replaces the home screen. The UV Intensity screen displays the level of UV light
detected by the sensor. UV intensity can be aected by poor water quality, scaling on the quartz
sleeve and/or sensor, lamp failure or lamp expiring. The following screens show the UV Intensity
dropping.
Below 56%, the numbers and warning sign turn red and an audible chirp is given by the ballast
every 15 seconds. Below 51%, the screen is solid red and a constant audible alarm is given. This
alternates with a screen indicang “water may be unsafe for consumpon”. With the solenoid
module, the controller de-acvates the solenoid valve, shung o all water ow.

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audible chirp every
15 seconds
audible chirp every
15 seconds
constant audible
alarm
cycles with red low
uv screen
Lamp Countdown Sequence
The system counts down the number of days unl a lamp change is required.
RF6
RF5
RF4
At thirty days remaining, the LED or display screen will change to a yellow cauon indicator.
At seven days remaining, the sytem will addionaly repeat an audible chirp. Past the zero day
threshold, the LED or display screen changes to solid red with a connuous buzzer.
RF6
RF5
RF4
At any point during this sequence, the audible chirp or alarm can be deferred for seven days
by holding the controller buon down for a period of ve seconds. The number of deferrals
used will be displayed as below. Once the deferral expires, the alarm will sound once again. The
deferral can be repeated up to three mes. PLEASE NOTE: At any point aer lamp expiraon,
the water may be unsafe for consumpon and should not be consumed without another form
of disinfecon.

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Lamp Replacement (RF4 systems)
Aer the lamp is expired, it must be replaced with the same part number as indicated by the
label on the reactor. Begin replacing the lamp by unplugging the power for the controller, then
refer to Installaon, starng with step 11 (page 11) for instrucons on installing the new lamp.
To reset the mer in the controller, rmly hold down the buon on the controller for 10 seconds.
The controller will read “rSt3”, “rSt2”, “rSt1” and then beep. The buon can now be released, the
lamp countdown mer has been reset.
Lamp Replacement (RF5 & RF6 systems)
Aer the lamp is expired, it must be replaced with the same part number as indicated on the
Maintenance Parts screen or on the label on the reactor. With the system powered down,
remove and discard the lamp key from the controller. The replacement lamp is packaged with a
lamp key on the connector at the end of the lamp. Remove the key from the lamp and place it in
the controller. Refer to Installaon, starng with step 11 (page 11) for instrucons on installing
the new lamp.
QR Codes
A QR code (Quick Response code) is a matrix barcode rst designed for the
automove industry. RainHarvest Systems uses the QR code to store a link
to a specic page on our website. Users with a camera phone equipped with
the correct reader applicaon can scan the image of the QR code and over a
wireless network connect to a RainHarvest Systems web page in the phone’s
browser. RainHarvest Systems’s QR webpage has informaon on how to pur-
chase replacement components as well as a helpful video directory on system
servicing (i.e. How to change a UV lamp or quartz sleeve). To access the QR code
on the controller, press the control buon unl the QR code screen appears.
Flow Meter
Coming Soon.

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System Troubleshoong
Hard Alarms: The following give a constant audible alarm. If present, the solenoid valve is closed,
and the 4-20, remote alarm and ethernet modules transmit the alarm.
System Display Problem Resoluon
The system has detected
a problem with the
lamp.
Reset lamp protecon circuit
-unplug unit for 10 seconds.
Replace the lamp with the
part as indicated on the
silver label on the reactor or
on the Maintenance parts
screen.
Although the lamp is
powered and visibly
illuminated, due to the
lamp’s age its UV output
is no longer sucient for
proper disinfecon.
Replace the lamp with the
part as indicated on the
silver label on the reactor or
on the Maintenance parts
screen.
Low UV Intensity.
Remove and clean the
quartz sleeve and sensor.
Check water quality meets
requirements on page 5 and
add ltraon as required.
Replace lamp.
Wrong lamp or sensor
installed.
Replace component with
proper model as indicated.
The UV sensor is no
longer communicang
with the system.
Ensure all modules are
connected properly to the
system and to each other.
Modules can be tested indi-
vidually by plugging in one at
a me and cycling power to
the system.
Replace any module that is
not detected when plugged
directly into the controller.
A bad connecon has
been detected in the IEP
port.

19|Page
Missing or incorrect
lamp key.
Ensure the lamp key
(packed with the lamp, on
the connector) is installed.
Unplug and reinstall the key.
Ensure the key part number
matches Lamp on Mainte-
nance Parts screen.
So Alarms: The following remaining errors give a 15 second audible chirp only
System Display Problem Resoluon
The module indicated is
no longer communicat-
ing to with the system.
Ensure all modules are
connected properly to the
system and to each other.
Modules can be tested indi-
vidually by plugging in one
at a me and cycling power
to the system.
Replace any module that is
not detected when plugged
directly into the controller.
COMING SOON
Warning: Aer any hard alarm, the home or facility should be disinfected. Follow the steps
under the “System Disinfecon” heading.
Boil Water Advisory: If any failure occurs on a UV system, the water must not be
used for human consumpon unl the system is returned to a safe operaonal
mode. If the water is used for human consumpon during this period, the water
must be boiled (minimum 20 minutes at a full boil) prior to consumpon.

20|Page
Temperature Management Devices
Your UV system is designed to run connuously to ensure opmal disinfecon. However, during
periods when no water is drawn through the system, the energy from the disinfecon process can
cause the temperature of the water inside the chamber to rise. In extreme situaons elevated water
temperature or the uctuaon in temperature can lower the output of the UV lamp. In these cases,
or if the elevated water temperature is a nuisance, RainHarvest Systems recommends one of the
following forms of temperature management devices.
Cooling Fan
Designed for use on the RainHarvest Systems-HO systems, the fan runs
connuously to cool the water by forced convecon. The long-life fan is powered
independently using a compact modular power adapter that operates from 90-
265V (47-63Hz). Order PN MOD-FAN-RF.
Temperature Relief Valve (TRV)
On reaching a higher temperature, the TRV is designed to drain a small amount
of water to allow fresh, cooler water to enter the system. The TRV works without
power and comes complete with 10’ of drain line. Order PN RF-TRV-0.5 for
1/2” ports, PN RF-TRV-0.75 for 3/4” ports, PN RF-TRV-1 for 1” ports and PN
RF-TRV-1.5 for 1 1/2” ports.
Expansion Modules
RF5 and RF6 controllers incorporate an “Innite Expandability Port” (IEP) which allows
for expansion to the UV sensor and all other modules. Each module (including the sensor)
comes with both a male and female connecon. Connect any device to the controller and all
subsequent devices are then connected into the female end of last device added in a “daisy
chain” conguraon.
The following oponal expansion modules are available for use on RF5 and RF6 UV controllers.
Contact your authorized distributor for purchasing informaon.
REMOTE ALARM CONNECTION MODULE: Allows
for a connecon to a remote device such as a
buzzer, light, alarm system, PLC, etc., via a pair of
contacts. In normal operaon the OK and COM
contacts will be connected, and in a fault condion
(Low UV, Lamp fail, Power Fail), the Fault and COM
contacts will be connected. Maximum Contact
Rang is 1A-120V AC/DC (use 16-22 AWG). Order
PN MOD-RAM-RF.