Jain Technology HERMITCRAB PRO User manual

HERMITCRABPRO™CONTROLLER
USER GUIDE
PHONE [phone]
EMAIL [e-mail]
ETWATER | A JAIN IRRIGATION COMPANY
2851 East Florence Avenue, Fresno, CA 93721 www.jainsusa.com/ETWater

2ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
TABLE OF CONTENTS
pg 3 How it Works
5Landscape Profile Checklist
6Considerations Before Installing + Connecting Your HermitCrab Pro Controller
7HermitCrab Pro Controller Installation Instructions
8Rain Bird® STPi and SST Series (5 Pin)
8Rain Bird® ESP Modular (6 Pin)
8Rain Bird® LX Modular (6 Pin)
9Rain Bird® LX Plus (6 Pin)
9Hunter® SRC, I-Core, Pro-C, ICC, and ACC*
9Rain Master ® Sentar™, Eagle, Hawk, and Evolution™ DX2
10 Irritrol® MC Plus B HermitCrab 2®
10 Irritrol® MC-E Original and 2011 Versions
10 Irritrol® MC-E 2011
11 Superior Sterling
11 Weathermatic® SmartLine + Proline Models
13 KEY FACTS TO REMEMBER:
14 Using Your HermitCrab Pro Controller
15 The Action Menus
17 HermitCrab Pro Controller Service Registration
19 Troubleshooting Guide
21 Limited Warranty

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
HOW IT WORKS
What is a HermitCrab® Controller?
The HermitCrab is an innovative device that converts a conventional (host) irrigation
controller into a “smart irrigation controller.” It combines web-based technology with
horticultural science to optimize your irrigation schedules and enable remote management
of watering needs.
1. Customer enters the landscape profile online www.jainsunity.com
2. Local cluster of weather stations capture weather and rainfall data.
3. The JAIN Unity server computes ideal watering schedule.
4. HermitCrab communicates wirelessly with the JAIN Unity server to receive schedule and
report field activity.
5. Acting as a “Smart Remote,” HermitCrab Pro takes control of the Host Controller, and
instructs the controller to open and close sprinkler valves as necessary.
The watering schedule is based on the science of evapotranspiration, or “ET,” the most widely
accepted scientific method for determining plant water requirements. ET is the combined rate at
which water is lost through soil evaporation and used by plants through transpiration.
Unity combines multiple data sources of daily and hourly historical, current and forecast weath-
er, including wind, humidity, pressure, solar irradiation, ET, and more. Weather data source
aggregation streamed to Unity is based on more than 250,000 personal weather stations in
addition to traditional sources. Government-issued weather sensors are augmented by personal
weather stations and near real-time observational data. The watering schedule is customized
for your landscape based on profile information you provide using our convenient, web-based
interface to select irrigation type, plant and soil type, slope, and sun exposure. The JAIN Unity
server combines this site information with weather data hourly to create a custom irrigation
schedule for maintaining a water-ecient healthy landscape.
HERMITCRAB PRO CONTROLLER USER GUIDE
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4ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
Once the HermitCrab Pro controller is con-
nected to your existing, conventional (host)
controller, it will make a daily, wireless con-
nection to the JAIN Unity server to retrieve the
weather-adjusted irrigation schedule for each
of the watering stations in your landscape.
Then, using this schedule, the HermitCrab Pro
controller will signal the host controller to
open and close irrigation valves as necessary.
In addition to water conservation and runo
reduction, remote management of the
installation with a computer or smart phone
reduces labor costs. A typical HermitCrab
Pro controller installation has a payback of
less than one year. When connected to
HermitCrab Pro controllers, an array of
controller brands at multiple sites can be
eciently managed from a single online
account—using the award-winning JAIN
Unity service.
BENEFITS:
• Water savings from upgrading to
JAIN Unity internet-based irrigation
control.
• Lowest Cost: Retrofitting an existing
conventional controller with a HermitCrab
Pro Controller costs much less than pur-
chasing and installing a new smart control-
ler.
• Fast payback means customers can
upgrade to smart control today, rather
than waiting for existing controllers to
reach end-of-life.
• Labor saving convenience of remote
monitoring and management via the web.
• Plug-and-play installation in less than
10 minutes. No valve rewiring or power
connection required.
For more information on the science of ET irrigation and how each of your schedules
is generated, please visit our website at: www.jainsusa.com/blog/beginners-guide-how-
much-water-does-my-landscape-need/

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
LANDSCAPE PROFILE CHECKLIST
To simplify the creation of a landscape profile for the HermitCrab Pro controller, JAIN
Irrigation recommends all customers perform a landscape audit before installing and
programming a new controller. Below is an JAIN Irrigation landscape audit form. Fill out the
form and keep this user guide by your computer for easy access. We also recommend you
make a copy of the completed landscape profile and leave it at the controller.
Station Number
Mark the applicable row using the checkboxes at right,
and use a new sheet as needed.
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45 46 47 48
Irrigation Method
Spray Head
Rotor
Impact
Stream
Drip
Bubbler
Precipitation: inches or gallons per hour
Distribution Uniformity (Percent)
Rooth Depth (Inches)
Plant Type* (Choose as many as apply)
Cool Season Grass
Warm Season Grass
Flowers/Bedding Plants
Shrubs (Native)
Shrubs (Non-native)
Groundcover/Vines
Trees (Native)
Trees (Non-native)
Ornamental Grasses
Vegetables/Herbs
Cactus/Succulents
Slope
Flat/Negligible (0-5%)
Gentle (6-8%)
Medium (9 to 12%)
Steep (13-20%)
Very Steep (over 20%)
Soil
Sandy (porous)
Sandy Loam
Loam (medium)
Loamy Clay
Clay (dense)
Sun Exposure
Sunny all day
Shady part of the day
Shady all day
Current Watering Schedule
Sessions per week
Minutes per session
Total minutes per week
New schedule: approx. minutes per week
* Plant types: Please note the approximate age of your plants and whether they are deciduous or evergreen. Also, for plants over one year old, our system
will assume they have the normal mature root depth for the type of plant indicated. If you believe your plants have not achieved their normal root depth,
you may change this value using the Advanced Setup page or Edit Station feature on the website.
Use this form to record your current station configurations (irrigation method, plant type, slope, soil, sun exposure, etc.) At the bottom, also record the
current watering schedule for each station. For example, Station #1 may now water twice a week (2 sessions) for one hour each, for a total watering time
of 2 hours per week. This information will help you configure your stations on our website, and also allow you to compare your current watering schedule
and usage with your new JAIN Unity schedule.

6ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
THINGS TO CONSIDER BEFORE INSTALLING AND
CONNECTING YOUR HERMITCRAB PRO CONTROLLER
Do you have the correct communications cable?
Each host controller requires its own specially designed cable. Cables can be purchased
separately.
• Is there sucient mounting space?
The communications cable that connects your HermitCrab Pro Controller to the host
controller is 3 feet long. You will need to mount or hang your HermitCrab Pro Controller
so the communications cable can easily reach from the HermitCrab Pro Controller to the
connection point(s) on your host controller.
• Is your host controller mounted in an enclosure or pedestal?
If your host controller is inside a pedestal or other enclosure you may decide to mount
your HermitCrab Pro Controller inside the enclosure. Please note that the wireless cellu-
lar signal strength inside the enclosure may be too low to ensure consistent and reliable
communication. You may need to purchase a separate external antenna.
• Will you need extra conduit?
If you use conduit to protect your cables from vandalism it must have a ¾inch or larger
inside diameter to accept the connectors on each end of the communications cable.
You may also need a junction box and any related conduit/box connectors.
• Do you have a rain sensor?
If you use a rain sensor you may need some 18 or 20 gauge wire to extend your rain
sensor’s existing wires so they reach the HermitCrab controller.
• Do you want to lock the HermitCrab Pro Controller cover?
Find the round plastic link above the lower clasp. You can slide a thin padlock hasp
through the link to lock the cover.

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
HERMITCRAB PRO CONTROLLER INSTALLATION INSTRUCTIONS
PRE-INSTALL REQUIREMENTS
• The HermitCrab Pro uses a cellular signal
to connect to the JAIN Unity server for
program updates. The area where the
HermitCrab Pro is installed must have a
strong cellular signal.
• Required Tools (drill and spare battery,
bits (including masonry or stainless steel),
Phillips screwdriver, crescent wrench,
voltmeter, extra wire (for wireless rain
sensor installations).
• HermitCrab Pro mounting hardware.
• Activate each zone on original controller
to ensure all zones work, as you complete
the landscape checklist. Or, skip the land-
scape checklist and configure the
stations via Smart phone, laptop or tablet.
Step 1: Install Your HermitCrab Pro Controller
1. HermitCrab controller needs to be installed no more than two feet away from the host
controller to insure that the HermitCrab Pro communications cable can reach both
controllers.
2. Attach the mounting brackets (included with the HermitCrab Pro controller) to the corners of
the plastic enclosure.
3. Position the HermitCrab Pro controller on the mounting
surface and anchor it using the included screws.
Step 2: Connect the Communications Cable to your
HermitCrab Pro Controller
Plug the communications cable into the 9-pin connector
located at the base of your HermitCrab controller, with the
▲ symbol on the plug facing up. Program the Host controller
and attach the HermitCrab Pro controller communications
cable to the appropriate Host controller model according to
the directions on the following page.
A. Liquid Crystal Display
B. Menu Knob
C. Communications Connector
D. Communications Cable
E. Rain Switch
NOTE: For anchoring to a
pedestal, use self-tapping
metal screws. For stain-
less steel enclosures, drill
a pilot hole, and then use a
tapered bit to increase the
size of the hole.
A
B
C
DE

8ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
RAIN BIRD® STPI AND SST SERIES (5 PIN)
PREPARING YOUR RAIN BIRD CONTROLLER:
1. Turn the selector dial on your Rain Bird controller to select station “1” and press the
“ZONE OFF” button. Repeat for all stations in use.
2. Turn the selector dial to “AUTO.”
3. Power o the controller.
ATTACHING THE HERMITCRAB COMMUNICATIONS CABLE:
1. Remove the factory two-pronged 24VAC connector from its connection on the Rain Bird.
2. Attach the separate black wire on the HermitCrab Pro communications cable to the 24 VAC
connector on the left side of the host controller.
3. Plug the HermitCrab Pro controller 5 Pin communications cable into the accessory plug
on the right side of the host controller.
4. Reconnect the factory 24VAC connector.
RAIN BIRD® ESP MODULAR (6 PIN)
PREPARING YOUR RAIN BIRD CONTROLLER:
1. Turn the selector dial to “OFF.” Dial will be left in “OFF” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB COMMUNICATIONS CABLE:
1. Connect the 6 Pin plug on the communications cable to the “remote” connector on the
back of the host controller’s front panel.
2. Connect the red and black wires to the AC power output terminals. Either wire can connect
to either terminal.
RAIN BIRD® LX MODULAR (6 PIN)
PREPARING YOUR RAIN BIRD CONTROLLER:
1. Leave the Dial in the “OFF” position. Dial will be left in the “OFF” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB COMMUNICATIONS CABLE:
1. Connect the 6 Pin plug on the communications cable to the “REMOTE”connector on the
right side of the transformer.
2. Connect the red and black wires to the terminal labeled “24 VAC.” Either wire can connect
to either terminal.

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
RAIN BIRD® LX PLUS (6 PIN)
PREPARING YOUR RAIN BIRD CONTROLLER:
1. Leave the dial in the “OFF” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB PRO COMMUNICATIONS CABLE:
1. Connect the 6 Pin plug on the communications cable to the “REMOTE”connector on the
right side of the transformer.
2. Connect the red and black wires to the terminal labeled “24 VAC.” Either wire can connect
to either terminal.
HUNTER® SRC, I-CORE*, PRO-C, ICC, AND ACC*
PREPARING YOUR HUNTER CONTROLLER:
1. Set the controller to the “System O” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB PRO COMMUNICATIONS CABLE:
1. Connect the three loose wires as follows:
a) Connect the Green or Brown wire to the terminal labeled “REM” or “R”.”
b) Connect the Black or White wire to the terminal labeled “AC2.”
c) Connect the Red wire to the terminal labeled “AC1.”* The Hunter ACC requires custom
installation with an ET Water engineer. Please call Customer Care for installation assis-
tance.
RAIN MASTER ® SENTAR™, EAGLE, HAWK,
AND EVOLUTION™ DX2
PREPARING YOUR RAIN MASTER HOST CONTROLLER:
1. Power o the controller.
ATTACHING THE HERMITCRAB PRO COMMUNICATIONS CABLE:
1. Plug the HermitCrab Pro controller communications cable into the remote connector on
the upper left hand side of the front panel.
NOTE: All Rain Master Controllers will display the word “REMOTE” once they are powered
on with the HermitCrab controller attached.
*I-CORE must be pre 2015 model.

10 ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
IRRITROL® MC PLUS
PREPARING YOUR MC PLUS B CONTROLLER:
1. Set the controller to the “Rain O” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB PRO COMMUNICATIONS CABLE:
1. Remove the two screws securing the front panel in the controller.
2. Carefully remove the front panel and locate the 6-pin connector located on the back
of the front panel, next to the display.
3. Connect the plug on the communications cable to this 6-pin connector.
IRRITROL® MC-E ORIGINAL AND 2011 VERSIONS
PREPARING YOUR IRRITROL MC-E ORIGINAL CONTROLLER:
1. Set the controller to the “Rain O” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB COMMUNICATIONS CABLE:
1. Connect the HermitCrab Pro communications cable to the 6-pin connector located
at the bottom right corner of the controller’s upper panel.
IRRITROL® MC-E 2011
PREPARING YOUR IRRITROL MC-E 2011 CONTROLLER:
The newer MC-E Irritrol defaults to an “Eicon Remote” setting. The HermitCrab Pro controller
requires the setting to be changed to “T.R.C Remote”. To do this, follow the steps below:
1. Turn the knob of the Irritrol to the ”Options” selection.
2. Press the “next” button to scroll to option #4 which will say “Retrolink Remote”. Press the
button labeled “+” to change the selection to T.R.C Remote.
3. Turn the Irritrol dial to “Sentinel/Eicon Remote”. The Irritrol will show a brief countdown
and then display “T.R.C Remote Start Receiving”.
4. Power o the controller.
ATTACHING THE HERMITCRAB Pro COMMUNICATIONS CABLE:
1. Connect the HermitCrab Pro communications cable to the 6-pin connector located
at the bottom right corner of the controller’s upper panel.

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
SUPERIOR STERLING
PREPARING YOUR STERLING HOST MC-E 2011 CONTROLLER:
1. Set the Sterling controller to the “OFF” position.
2. Power o the controller.
ATTACHING THE HERMITCRAB PRO COMMUNICATIONS CABLE:
1. Connect the HermitCrab Pro controller communications cable to the connector labeled
REMOTE on the bottom right of the panel.
WEATHERMATIC® SMARTLINE* + PROLINE MODELS
PREPARING YOUR WEATHERMATIC CONTROLLER:
1. Set the Weathermatic to “SYSTEM OFF.”
2. Power o the controller.
ATTACHING THE HERMITCRAB PRO COMMUNICATIONS CABLE:
1. Plug the HermitCrab Pro controller communications cable into the remote connector.
*Smartline must be pre firmware version 10.04

12 ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
HERMITCRAB PRO CONTROLLER INSTALLATION
INSTRUCTIONS (CONTINUED FROM PG 7)
Step 3: Connect Rain Sensor Wires
(if Applicable)
If using a Hard-wired rain sensor:
1. Detach the wires from the rain sensor
connector on the host controller.
2. Connect the rain sensor wires to the
Rain Switch terminals on the Hermit
Crab Pro controller. If you are using
conduit, don’t forget to thread the wires
through the conduit.
3. Be sure to select Rain Sense on the Her-
mitCrab Pro controller menu once you
complete the set up process.
If using a Wireless rain sensor:
1. Leave the yellow power wires attached
to the host controller.
2. The wires attached to the host
controller’s rain sensor terminals will
need to be extended so they can reach
the HermitCrab controller.
3. Connect the extended wires to the to
the Rain Switch terminals on the Hermit
Crab Pro controller.
4. Be sure to select Rain Sense on the Her-
mitCrab Pro controller menu once you
complete the set up process.
Step 4: Power up the Host Controller.
The display on the HermitCrab controller
will illuminate and show the Setup Menu.
Step 5: Set the HermitCrab Pro controller
for the Host Controller Type.
1. Go to the setup menu using the control
knob on the HermitCrab Pro controller
and turn the knob until Set Host appears
on the display.
2. Press the knob to access the list of
supported host controllers.
3. Turn the knob to until your host
controller type is displayed.
4. Press the knob to select it.
Step 6: Turn On a Station to ensure Proper
Communications with the Host Controller.
It is important to ensure the HermitCrab
controller can activate a station on the host
controller.
1. Go to the setup menu of the HermitCrab
Pro controller and turn the knob until
Station Test appears in the display.
2. Press the knob to access the Station
Test screen.
3. Turn the knob to select the station you
want to activate, and then press the
knob to select it. Use the same proce-
dure to enter the run time minutes.
4. Highlight the Begin selection and press
the knob to activate the station.
Step 7: Enable the Rain Sensor
(if applicable).
1. Go to the setup menu of the
HermitCrab controller using the menu
knob and turn the knob until “Rain
Sensor Disabled” appears in the display.
2. Press the knob and highlight Enable,
then press the knob again to select it.

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
NOTE: You may execute a Test Dial at
any time. With each connection, your
HermitCrab controller downloads the
latest watering schedules, so this
feature is especially useful if you have
made changes to your landscape profile.
Step 8: Execute a Test Dial
A test dial initiates a connection to the Unity
server, where all of your account informa-
tion, landscape profiles, and watering sched-
ules are stored.
1. Turn the knob to highlight the Test Dial
selection and press the knob to select
it. You’ll see a bar graph indicating the
signal strength. The HermitCrab control-
ler should have three bars for optimal
communication.
2. Highlight the Dial selection and press the
knob to select it. After a short period, the
HermitCrab controller will display that it
is transmitting (“TX”) and will show that
it is receiving (“RX”) with a count ranging
from 1-10. When the communication is
finished the word “Done” will appear on
the display
Step 9: Complete the HermitCrab
Pro controller Setup.
To complete the setup process, turn the knob
until Setup Complete is shown on the display
and press the knob to make the selection.
Installation and set up of your HermitCrab
controller is now complete.
KEY FACTS TO REMEMBER:
• Your HermitCrab Pro controller is designed to send watering commands to your host
controller based on smart irrigation schedules it retrieves daily from your JAIN online
account.
• Your Hermitcrab Pro controller receives its power from your host controller. If there is no
power to the host controller, your Hermitcrab Pro will also have no power.
• If you want to use a remote control, you will need to disconnect the HermitCrab
Pro controller communications cable and reconnect it once the remote operation is com-
plete. As an alternative, the Unity Mobile service lets you use a smartphone to send remote
control commands to the controller from anywhere in the world.
• If you add watering stations or change your landscape profile, there’s no need to visit the
site to reprogram your HermitCrab Pro controller. Simply update by editing your landscape
profile online, the new information will download to your HermitCrab Pro controller auto-
matically.
• Your HermitCrab Pro controller can connect to any compatible host controller—just be
sure you have selected the correct Host type and that you are using the correct
communications cable. You will also need to update your landscape profile if you move
your HermitCrab Pro to a new location.
• You can stop watering at any time by turning the knob to select Cancel. The display screen
will display which station is currently being irrigated. The Cancel selection is at the bottom
right of the display screen.

14 ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
USING YOUR HERMITCRAB PRO CONTROLLER
HOME SCREEN
The “Home Screen” shows basic information about your HermitCrab Pro controller and its
current status. Only three lines are visible on the display screen at any one time. The Home
Screen shows:
• Current Date and Time
• Serial Number
• Status
Current Date and Time:
This line displays the local time where
your HermitCrab Pro controller is installed.
This information is automatically
synchronized every time your HermitCrab
Pro controller connects to the JAIN Unity
servers.
Serial Number:
Your serial number is unique, and you’ll
be asked for it if you need to call ETwater
Customer Care for any issues or support.
Status:
This line tells you what your HermitCrab
Pro controller is doing.There are five status
modes:
• Idle: Not currently watering.
• Watering Currently: Watering a station
using a downloaded schedule or a manual
activation.
• Suspended: HermitCrab Pro controller
watering operation has been suspended
and will not water, but will make daily
connections to the JAIN Unity servers to
download watering schedules. Note: This
is not related to subscription status.
• Rain Sensed: The HermitCrab Pro
controller will not water because the rain
sensor is wet (you will receive an alert for
this condition via email).
• Soaking: An automatic pause during
irrigation to allow the water to soak in.

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
THE ACTION MENUS
There are 11 Action Menus. You access
them from the Home Screen by pressing the
selector knob, then rotating it to your desired
selection. Once your selection is highlighted,
press the knob to access the Actions sub-
menu.
The function of each selection is as follows:
• Percent Adjust: Use this function to
increase or decrease your irrigation run-
times. Rotate the selector knob to select
either one specific station, or all stations,
and press the knob to make your selection.
Next, rotate the knob to choose the percent
adjustment you wish to make. Press the
knob to make your selection. Finally,
complete the process by selecting
either Accept or Cancel. Once complete,
the display will return to the Home Screen
• Suspend: Use this function to stop all
scheduled watering. Rotate the selector
knob to highlight your choice. On means
all stations are suspended and no wa-
tering will occur. O means all stations
will water according to their downloaded
schedules. Press the knob to make your
selection. Once complete, the display will
return to the Home Screen.
• Station Test: Use this function to turn a
station on and o. Rotate the selector knob
until the station number you want to water
appears. Press the knob to make your
selection. Next, rotate the knob to select
the number of minutes you would like the
station to water. Press the knob to make
your selection. You will need to press the
knob again once Begin is highlighted, or
you can cancel the watering command by
selecting Cancel. If you select Begin, the
display will change to show you which
station is watering, the number of min-
utes you requested, and the number of
minutes remaining. The selection Stop
will be highlighted throughout the station
test located on the left side of the display.
To stop the watering before the station
test is complete push the HermitCrab Pro
controller knob. Watering will stop, and
the display screen will return to the Home
Screen.
• Misc Status Info: This selection will
display the host currently selected for
the HermitCrab Pro controller, the current
firmware version and the date / time the
device last connected. This information
will be helpful if you need to call Customer
Care.
• Return: This menu selection provides a
quick way to return to the HermitCrab Pro
controller‘s Home Screen, and for conven-
ience, appears several times within the list
of commands
• Host Select: Rotate the selector knob
until your host controller type is
highlighted, then press the knob to make
your selection. After making your selec-
tion, the display will return to the Home
Screen
NOTE: If you want only some stations
to water, but not others, use your online
account to apply restrictions to the
stations you want to remain o.
NOTE: If you had previously select-
ed your host controller, its name will
appear in the display. If it is correct and
you don’t want to change it, press Cancel
to return to the Home Screen without
changing your host controller.

16 ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
• Test Dial: A Test Dial initiates a connection
to the JAIN Unity servers, where all of your
account information, landscape profiles,
and watering schedules are stored. You
may perform a Test Dial at any time. With
each connection, your HermitCrab Pro
controller downloads the latest watering
schedules, so this feature is especially
useful if you have made changes to your
landscape profile. When you access the
Test Dial selection, the display shows the
last connection date and time, a bar graph
depicting the wireless signal strength, and
two menu options: Dial and Don’t Dial.
The bar graph must show some amount
of cellular signal for the test dial to be
successful. To execute a Test Dial, turn
the knob to select Dial and then press the
knob . Your HermitCrab Pro controller will
initiate a connection. The HermitCrab Pro
controller will indicate that it is transmit-
ting (“TX”) and will show that it is receiving
(“RX”) and it will display the number of
data packets being sent. When the com-
munication is finished, the display will
show done. Your HermitCrab Pro controller
will terminate the connection automati-
cally.
• After a successful connection or one that
you cancel, you will automatically return
to the Home Screen.
• Program Review: This screen shows the
first watering start time and the number
of programmed stations.
• Recent Activity: This function displays
“event codes” that describe operations
your host controller has recently per-
formed, and is useful should you need
to call Customer Care. Rotate the selec-
tor knob to scroll through the list. Press
the selector knob to return to the Home
Screen.
NOTE: During the connection, “abort”
will be highlighted, which means you
may press the knob to stop the
connection in progress.
NOTE: A Test Dial can also be done
online from Jain Unity to download any
program adjustments.

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ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
HERMITCRAB PRO CONTROLLER SERVICE REGISTRATION
YOUR JAIN Unity ACCOUNT
After installing your HermitCrab Pro controller, and before it can begin watering, you’ll need
to create a JAIN Unity user account and setup a landscape profile for the landscape be-
ing watered. Once this is done, you’ll have access to all of the important watering infor-
mation you’ll need to ensure your site is eciently irrigated. You can log in at any time at
www.jainsunity.com to review such information as:
• When your HermitCrab Pro controller will water again, and which stations will water
• When your HermitCrab Pro controller last watered
• The number of hours in your water window
• When your HermitCrab Pro controller last communicated with the JAIN Unity server
• Current weather information, including ET data
• Watering adjustments, restrictions, and suspensions.
REGISTERING YOUR HERMITCRAB CONTROLLER
You’ll need:
• Your HermitCrab controller’s 10 digit serial number, which should be displayed on the main
screen of the HermitCrab controller following a successful installation. You can also find it
on the HermitCrab Pro controller’s box, or on a label on the back of the HermitCrab Pro.
Enter serial number here: ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
• Contact information, including an email address, for the person who will manage the
irrigation system,
• Contact information, including an email address, for the person responsible for paying
future service fees. This is usually the property manager or owner,
• The address and zip code where the controller will be installed.
• Follow the onscreen instructions (see following page) until you have clicked on the
“I agree” button on the Terms of Service page. This will complete your registration.
1. Go to www.jainsunity.com
2. Select the “Sign Up” link if you do not have an JAIN Unity account, or, if you
already have an account select log in then proceed to add the controller to an existing
site or create a new site. The online JAIN Unity help documentation will step
you through that process.
3. Enter all of the relevant contact, billing and site information.
4. Read the Terms of Service and click Accept if you agree to the terms.

18 ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
FPO
CREATING A LANDSCAPE PROFILE FOR YOUR HERMITCRAB PRO
It is important that the landscape profiles you enter be as accurate as possible. We recom-
mend that you use our Landscape Profile Checklist on Page 5 to help you document your
landscape, visiting the actual site if necessary.
Next, you must enter the required landscape information for each of your watering zones.
Click the “Configure now” link on the controller overview page, and select the “step-by-step”
landscape set up process. The process asks you to define your landscape in terms of sun
exposure, soil type, slope, plant material, irrigation method, etc.
NOTE: For advanced information and training on JAIN Unity please review the online
tutorials on our website: www.jainsusa.com.
FPO

19
ETWATER | A JAIN IRRIGATION COMPANY HERMITCRAB PRO | USER GUIDE
TROUBLESHOOTING GUIDE
The cable won’t connect to the HermitCrab Pro controller.
Make sure you’re trying to connect the end of the cable with the round, black connector.
The embossed triangle on the connector should be facing out when you are plugging it into
the HermitCrab Pro Controller.
The cable won’t connect to the Host Controller.
Make sure you’re trying to connect the proper end of the cable. Also, every model of host
controller has its own type of connector. Make sure that you have the correct cable for your
model, and are aligning it correctly to make the connection.
There’s a loose wire on the cable. What do I do with it?
The wire probably attaches to the valve common terminal in your host controller. Refer to the
specific information on connecting the HermitCrab Pro controller to your host controller
within this manual.
Where do the rain sensor wires go? Can I just interrupt the common?
The rain sensor wires connect to the small green screw terminals label “Rain Switch” on the
HermitCrab Pro controller. You’ll also have to enable the rain sensor using the HermitCrab
Pro controller’s setup screen. If you interrupt the common, the sensor will function, but the
HermitCrab Pro controller will not be able to alert you when the rain sensor is wet and the
HermitCrab Pro controller will not delay irrigation when there is rainfall.
The HermitCrab controller doesn’t turn on. I don’t think it is has any power.
Is the host controller turned on and operational? Your HermitCrab controller gets its power
from the communications cable that connects it to the host controller. Check to be sure the
host is on and working. If it is, but your HermitCrab controller still has no power, check the
connection at both ends of the communications cable.
The HermitCrab Pro controller doesn’t activate any stations.
First, check that the HermitCrab Pro controller has been set to the correct host controller, if
so proceed as follows.
Remove the HermitCrab Pro controller communications cable from the host controller, and
then activate the station using the host controller’s panel so that you’re using only the host
controller. Does the station activate? If not, check for circuit or solenoid problems. If it does
activate, reconnect the HermitCrab Pro controller and attempt activation. If the station still
doesn’t activate, try to activate other stations. If other stations don’t work, make sure the host
controller has been correctly set to allow control by the HermitCrab Pro controller (see the
setup instructions for your host controller in this manual) and the HermitCrab Pro controller
has been set for the correct host controller.
When the watering start time occurs, nothing happens.
Can your HermitCrab Pro controller activate a station? Is the host controller correctly set to
the mode specified for your specific controller? Check the Home Screen to see if there’s a
watering suspension in place. You should also check your online account to see if any restric-
tions have been applied.

20 ETWATER | A JAIN IRRIGATION COMPANYHERMITCRAB PRO | USER GUIDE
The HermitCrab Pro controller doesn’t display any irrigation schedules. I don’t think it’s
programmed correctly.
Has the HermitCrab Pro controller been registered online? Has it already connected to
the JAIN Unity servers? All of the irrigation scheduling is programmed online, not on the
HermitCrab Pro controller. After setting up the landscape profile online, the HermitCrab con-
troller must then connect to the JAIN Unity servers to download the watering schedule. Check
the “Last Connect” display on the “Misc Status Info” menu. If your HermitCrab Pro controller
has never connected, you will need to initiate a Test Dial. No connection over a period of time
would indicate there is not enough signal strength for proper operation. Check the signal
strength and contact Customer Care if needed. If it has connected but there are still no sched-
ules, check your account online to verify that the stations have been configured.
I was running more than one program, and I can’t figure out how to set this up on
the website.
The host controller may have been set up with Program A, Program B, etc. The HermitCrab
Pro controller provides one water window during which any necessary watering will occur,
and the online irrigation schedules determine when the HermitCrab Pro controller waters.
Note that irrigation frequencies will be dierent for turf and shrubs, and your online schedul-
ing will likely select dierent watering days for dierent plant material.
Is there an antenna? Where does it go?
The antenna is already installed inside your HermitCrab Pro controller case.
I don’t think the HermitCrab controller is connecting. What do I do?
First go to the “Misc Status Info” menu and look at the last connect time and date. This time
and date should be less than 24 hours ago. If not proceed as follows.
Initiate a Test Dial by selecting the Test Dial menu and pressing the selector knob when Dial
is highlighted. If the display screen shows no connection activity after you select Dial, turn o
the power by unplugging the communications cable from the bottom of the HermitCrab Pro
controller. Wait two full minutes before reconnecting the cable. Reconnect the cable and wait
another two minutes. Initiate another Test Dial.
Whenever your HermitCrab Pro controller makes a connection to the JAIN Unity server, it
displays the communication status in progress. After selecting the “Dial” step on the Test
Dial menu, a “TX” will appear to indicate a connection has started and you will see “RX” and
a series of numbers that represent the transfer of data. When the communication session is
complete, the display will read “Done,” and your HermitCrab Pro controller will terminate the
connection automatically.
I need the HermitCrab Pro controller serial number. Where is it?
When the HermitCrab Pro controller is turned on, the serial number is displayed on the sec-
ond line of the Home Screen following the S/N. It is also on a label on the bottom plate inside
the HermitCrab Pro controller box.
CUSTOMER CARE: Our Care team is available from 7:00 a.m. to 4:00 p.m. Pacific Stand-
ard Time, Monday through Friday, at [phone]. Be sure to have your account and
serial numbers handy. You can also email us at [e-mail].