Watts AERCO Edge [ii] User manual

Heating and Hot Water Solutions
AERCO International, Inc. • 100 Oritani Drive • Blauvelt, NY 10913
USA: T: [phone] • Toll Free: [phone] • AERCO.com
Technical Support • [phone] • Mon-Fri, 8 am - 5 pm EST
© 2020 AERCO
Edge®[ii] Controller
For Benchmark®Boilers
Other documents for this product include:
OMM-0136, GF-210 Benchmark Installation and Startup Manual
OMM-0137, GF-211 Benchmark Operation-Service Manual
OMM-0138, GF-212 Benchmark Reference Manual
OMM-0140, Edge Communication Manual
OMM-139_E •8/25/2020
Operation Manual
Disclaimer
The information contained in this manual is subject to change without notice
from AERCO International, Inc. AERCO makes no warranty of any kind with
respect to this material, including, but not limited to, implied warranties of
merchantability and fitness for a particular application. AERCO International is
not liable for errors appearing in this manual, not for incidental or
consequential damages occurring in connection with the furnishing,
performance, or use of these materials.

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Table of Contents
SECTION 1: GENERAL INFORMATION...............................................................7
1.1 INTRODUCTION.................................................................................................................. 7
1.2 SAFETY PRECAUTIONS AND WARNINGS........................................................................ 7
1.3 POWER UP ......................................................................................................................... 8
1.4 DOWNLOAD LATEST FIRMWARE ..................................................................................... 8
1.5 PASSWORDS...................................................................................................................... 8
1.5.1 Screensaver Password......................................................................................................................9
1.6 MAIN MENU .......................................................................................................................10
1.7 CONTROLLER FONT PANEL FUNCTIONALITY ...............................................................10
1.8 TOUCHSCREEN BUTTON FUNCTIONALITY....................................................................12
1.9 SELECTIONS.....................................................................................................................13
1.10 ABORTING AN ACTION...................................................................................................14
1.11 TIMEOUT..........................................................................................................................15
1.12 THE UNIT & PLANT STATUS SCREENS.........................................................................15
1.12.1 Plant Status Screen.......................................................................................................................16
SECTION 2: EZ SETUP .....................................................................................17
2.1 BACKING UP AND RESTORING SETTINGS.....................................................................18
2.2 EZ SETUP: STANDALONE ...............................................................................................18
2.2.1 EZ Setup: Standalone –Space Heating Application.......................................................................20
2.2.2 EZ Setup: Standalone –DWH (Domestic Hot Water) Application.................................................24
2.2.3 EZ Setup: Standalone –Other Application ....................................................................................26
2.3 EZ SETUP: BOILER SEQUENCING TECHNOLOGY CASCADE......................................28
2.3.1 EZ Setup: BST Client Units .............................................................................................................28
2.3.2 EZ Setup: BST Manager Unit..........................................................................................................31
EZ Setup: BST Manager –Single Application ...........................................................................................34
2.3.2.1.1 EZ Setup: BST Manager –Space Heating Application....................................................34
2.3.2.1.2 EZ Setup: BST Manager –Domestic Hot Water Application.........................................37
2.3.2.1.3 EZ Setup: BST Manager –Other Application.................................................................39
EZ Setup: BST Manager –Two Applications............................................................................................41
2.3.2.2.1 EZ Setup: BST Manager –Space Heating and DHW Applications.................................41
2.3.2.2.2 EZ Setup: BST Manager –DHW and Other Applications...............................................47
2.3.2.2.3 EZ Setup: BST Manager –Space Heating and Other Applications ................................51
2.4 COMPLETING THE INSTALLATION..................................................................................55
2.5 EZ SETUP –RESTORING A PREVIOUS SETUP..............................................................57
SECTION 3: CALIBRATION...............................................................................61
3.1 ASSISTED COMBUSTION CALIBRATION.........................................................................62
3.2 MANUAL COMBUSTION CALIBRATION OVERVIEW........................................................65
3.3 INPUT/OUTPUT..................................................................................................................67
3.3.1 Temperature Sensors.....................................................................................................................67
3.3.2 O2 Sensor .......................................................................................................................................68
3.3.3 Analog Inputs..................................................................................................................................69
3.3.4 Analog Outputs...............................................................................................................................70

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3.4 SUBSYSTEM......................................................................................................................71
3.4.1 Air Fuel Valve Calibration...............................................................................................................72
3.4.2 Spark Monitor Calibration..............................................................................................................73
3.5 COMBUSTION SUMMARY.................................................................................................73
SECTION 4: DIAGNOSTICS ..............................................................................75
4.1 MANUAL RUN ....................................................................................................................76
4.2 FRONT PANEL...................................................................................................................77
4.3 ANALOG OUTPUTS AND RELAYS....................................................................................78
4.3.1 Relays..............................................................................................................................................79
4.3.2 Analog Outputs...............................................................................................................................80
4.4 SUBSYSTEMS ...................................................................................................................80
4.4.1 Air Fuel Valve Stepper Motor.........................................................................................................81
4.4.2 Blower ............................................................................................................................................81
4.4.3 Ignition............................................................................................................................................82
4.5 SYSTEM.............................................................................................................................83
4.5.1 Pre-Start Up....................................................................................................................................83
4.5.2 Versions..........................................................................................................................................84
4.6 COMM & NETWORK..........................................................................................................84
4.6.1 IP Network......................................................................................................................................85
4.6.2 BAS..................................................................................................................................................85
4.6.3 onAER .............................................................................................................................................86
4.6.4 Smart Device ..................................................................................................................................87
4.6.5 USB Storage....................................................................................................................................87
4.7 INPUT/OUTPUT SUMMARY...............................................................................................88
SECTION 5: TRENDING ...................................................................................89
5.1 FAST LOGGING SETTINGS AND GRAPH.........................................................................90
5.2 SLOW LOGGING SETTINGS AND GRAPH.......................................................................91
SECTION 6: ADVANCED SETUP .......................................................................93
6.1 ACCESS.............................................................................................................................94
6.2 UNIT ...................................................................................................................................94
6.2.1 Unit Settings...................................................................................................................................95
6.2.2 Front Panel Configuration ..............................................................................................................97
6.2.3 Save and Transfer Settings .............................................................................................................98
Save Settings............................................................................................................................................99
Restore Settings.....................................................................................................................................100
6.2.4 Fault Management.......................................................................................................................101
6.2.5 Freeze Protection .........................................................................................................................102
6.2.6 Unit Application Configuration.....................................................................................................102
6.2.7 Firmware Update..........................................................................................................................108
Preparing for Firmware Update.............................................................................................................109
Download to an External Computer ......................................................................................................110
Download Directly to the Controller .....................................................................................................111
Updating the Controller’s Firmware ......................................................................................................112
Restore Settings After Firmware Update...............................................................................................114
Troubleshooting.....................................................................................................................................115
6.2.8 Maintenance ................................................................................................................................116

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6.3 BST CASCADE.................................................................................................................117
6.3.1 Cascade Configuration..................................................................................................................118
6.3.2 Cascade Communication..............................................................................................................122
6.3.3 BST Application Configuration......................................................................................................124
6.3.4 Operating Controls.......................................................................................................................129
Sequencing Controls..............................................................................................................................130
Anti-Cycling Control...............................................................................................................................132
Temperature Control.............................................................................................................................133
Valve Configuration ...............................................................................................................................134
Reserve Unit Control..............................................................................................................................135
Setpoint Range.......................................................................................................................................136
Lead/Lag ................................................................................................................................................138
Valve Balancing......................................................................................................................................139
6.3.5 SmartPlate Communication .........................................................................................................144
6.4 COMM & NETWORK........................................................................................................145
6.4.1 BAS (Building Automation System) ..............................................................................................145
6.4.2 onAER ...........................................................................................................................................148
6.4.3 Smart Devices...............................................................................................................................149
6.4.4 Ethernet........................................................................................................................................149
6.4.5 Communication Failsafe...............................................................................................................150
6.5 ANCILLARY DEVICES......................................................................................................151
6.5.1 Interlocks......................................................................................................................................151
6.5.2 Relays............................................................................................................................................152
6.5.3 Analog Outputs.............................................................................................................................153
6.5.4 Analog Inputs................................................................................................................................154
6.6 PERFORMANCE..............................................................................................................155
6.6.1 AERtrim.........................................................................................................................................156
AERtrim Settings ....................................................................................................................................156
O2Trim Parameters ...............................................................................................................................158
AERtrim Status.......................................................................................................................................158
6.6.2 Temperature Control....................................................................................................................160
PID Setting .............................................................................................................................................160
Temperature Conformance ...................................................................................................................161
Setpoint Range.......................................................................................................................................162
6.6.3 Fire Control...................................................................................................................................163
Purge Control.........................................................................................................................................164
Ignition Control......................................................................................................................................164
Operating Control..................................................................................................................................165
Anti-Cycling Controls .............................................................................................................................166
SECTION 7: UNIT STATUS .............................................................................167
7.1 IGNITION SEQUENCE.....................................................................................................168
7.1.1 Demand........................................................................................................................................169
7.1.2 Auxiliary Delay Timers..................................................................................................................169
7.1.3 Purging..........................................................................................................................................170
7.1.4 Spark Cleaning..............................................................................................................................171
7.1.5 Ignition..........................................................................................................................................171
7.2 UNIT STATUS ..................................................................................................................173
7.3 PLANT STATUS ...............................................................................................................174
7.4 BST CASCADE STATUS..................................................................................................175

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7.5 ISOLATION VALVE STATUS............................................................................................177
7.6 SMARTPLATE STATUS...................................................................................................177
7.7 RUNTIME STATISTICS....................................................................................................178
7.8 UNIT EVENT HISTORY....................................................................................................179
7.9 PLANT EVENT HISTORY.................................................................................................180
7.10 AERTRIM........................................................................................................................181
7.11 IGNITION SEQUENCE (SUMMARY)..............................................................................181
SECTION 8: I/O NOMENCLATURE.................................................................183
SECTION 9: EDGE CONTROLLER VIEWS.........................................................185
SECTION 10: STARTUP, STATUS, FAULT MESSAGES........................................187
10.1 FAULT MESSAGES........................................................................................................187
10.2 O2TRIM MESSAGES.....................................................................................................191
10.3 BST CASCADE MESSAGES..........................................................................................192
APPENDIX A: INDOOR/OUTDOOR RESET RATIO..............................................193
Reset Ratio Formula .............................................................................................................................194
Reset Ratio Application Suggested Startup Settings...........................................................................194

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SECTION 1: General Information
1.1 Introduction
The information in this Section provides a guide to the operation of Benchmark Boilers using the
Edge Controller. In addition, it provides information on numerous types of external sensors and
control devices that can interface to the unit using terminals provided in the boiler’s Input/Output
(I/O) Box. Information regarding the set-up of all boiler Operating Modes, as well as Boiler
Sequencing Technology (BST) Systems of units is also included.
NOTE:
Starting in Section 2, the instructions in this document are based on the assumption that you
are already familiar with the Edge Controller interface and can navigate through the menus
and screens, enable/disable functions, make selections, edit parameters, and return to the
Main Menu, etc., without detailed instructions. This section provides an introduction to
navigating through the Controller’s screens and how use the various components in them.
1.2 SAFETY PRECAUTIONS AND WARNINGS
It is imperative that the initial startup of Benchmark units be performed by factory trained
personnel. Operation prior to initial startup by factory trained personnel will void the equipment
warranty. In addition, the following WARNINGS and CAUTIONS must be observed at all times.
CAUTION:
All initial installation procedures must be satisfied before attempting to start the unit.
WARNING:
ELECTRICAL VOLTAGES IN BENCHMARK SERIES BOILERS MAY INCLUDE 120, 220 OR
460 VOLTS AC. THEREFORE, THESE UNITS MUST BE SERVICED ONLY BY FACTORY
CERTIFIED SERVICE TECHNICIANS.
WARNING:
DO NOT ATTEMPT TO DRY FIRE THE UNIT. STARTING THE UNIT WITHOUT A FULL
WATER LEVEL CAN SERIOUSLY DAMAGE THE UNIT AND MAY RESULT IN PERSONNEL
INJURY OR PROPERTY DAMAGE. THIS SITUATION WILL VOID ANY WARRANTY.

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1.3 Power Up
Upon power-on, the splash screen appears, and the Controller’s Main Menu then appears a
few seconds later. However, if the Screensaver Password feature (see Section 1.5.1:
Screensaver Password) has been enabled, the splash screen remains, with “LOCKED”
appearing at the bottom of the screen. Pressing any control causes the Enter Password screen
to appear (see Section 1.5 below). You must enter a password to get past the splash screen.
Figure 1.3: Splash Screen
1.4 Download Latest Firmware
AERCO is committed to making the Edge Controller a reliable and easy to use front-end to your
AERCO boiler. As part of that effort, AERCO will be continuously monitoring user’s experience
and implementing improvements to the Controllers firmware.
As a result, it is possible that the Controller firmware on your recently delivered boiler may
already be out of date. You must update the firmware to the latest version before you
begin using the Edge Controller for the first time. This will eliminate potential problems and
allow AERCO Technical Support to better serve you if you need assistance.
The first step is to obtain the latest firmware from AERCO. AERCO certified technicians can
download latest firmware from the AERCO website, or they can contact their local AERCO rep
for information on latest firmware.
Once you have either connected the boiler to an Ethernet cable or downloaded the latest
firmware to a USB device, you must update the firmware. Instructions for both options are in
Section 6.2.7: Firmware Update.
1.5 Passwords
The Edge Controller has multiple levels of password protection.
Level
Password
Description
0
No password
The default. Some parameters are visible but “Read Only” but the
user is excluded from most functionality.
1
159
Allows some basic setting changes. Appropriate for AERCO Trained
Technicians (ATT).
The level 2 password is reserved for AERCO Trained (ATT) and AERCO Master Technicians
(AMT). It is distributed on an individual, as needed, basis.

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To enter a password:
1. Go to the Main Menu, press Advanced Setup,then press the Access button. The Enter
Password screen appears.
Figure 1.5: Enter Password Screen
2. Use the number keypad to enter the password (each number appears as a *), then press
Save. You’ll have access to the functionality associated with the level of the password.
1.5.1 Screensaver Password
By default, all users that have not been given a password have Level 0 access to the Controller,
which allows them to view many parameters, but they are excluded from using most
functionality. However, access can be restricted to users with an Edge Controller password,
effectively eliminating Level 0 access, by enabling the Screensaver Password parameter.
Once enabled, all users are presented with the Enter Password screen when they attempt to
perform any function, even accessing the Main Menu.
To enable the Screensaver Password parameter, complete the instructions below. You must
already have a password to perform these instructions.
1. Go to the Main Menu and press Advanced Setup. The Advanced Setup screen (see
Figure 6.0) opens.
2. Press Access, then enter your password and press Save.
3. Press Unit, then press Front Panel Configuration. The Front Panel Configuration screen
opens.
Figure 1.5.1: Front Panel Configuration Screen

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4. Scroll down till you see the Screensaver Password parameter. It displays the current state
of this parameter, either Enabled or Disabled.
5. If the current state is Disabled, press on Disabled; the state changes to Enabled.
6. Press the Home button. The change is saved and a password is required for all users.
NOTE:
Once the Screensaver Password is Enabled, after the Controller times out, all users will be
prompted to enter a password as soon as they touch any control.
1.6 Main Menu
Once the unit has completed powering up, the touchscreen displays the Main Menu. When you
press on an item in this screen, it turns green, as shown on the right below.
NO SELECTION UNIT STATUS SELECTED
Figure 1.6: The Touchscreen Main Menu
All Controller menus and operating parameters are access through the six Main Menu options.
1.7 Controller Font Panel Functionality
The Edge Controller contains a capacitive touchscreen, which is a highly sensitive device. It
continuously checks for user interaction at a very high frequency. Boiler room environments are
sometimes harsh, electromagnetically noisy and dirty, and can experience wide temperature
ranges, all of which can be difficult for sensitive electronic components.
AERCO has taken precautions to ensure proper operation of your unit. We have built the Edge
Controller with a high-quality glass screen for clarity and performance, with an optically bonded
overlay covering the front of the enclosure to prevent dirt and liquids from affecting its operation.
The Edge Controller’s front panel consists of a touchscreen display along with a variety of
indicators and buttons, as shown in below image.

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Figure 1.7: Edge Controller Front Panel Layout
All the completed settings and the Unit Event History are maintained throughout the power
cycle.
The Soft-Keys on the Controller’s front face function as follows:
Controller Front Panel Controls
Icon
Name
Description
Previous
Takes you to the previous screen.
Home
Takes you to the touchscreen’s Main Menu (see Figure 1.6). If
pressed during a procedure, it aborts the procedure.
Up/Down
These buttons activate a selection box that can then be moved
sequentially through the editable/selectable parameters starting from
1
Multi-Function Bar, shows either:
•Fire Rate
•Valve Position
2
Parameter Indicator for both
temperature read-outs:
•LEFT: Inlet or Setpoint
temperature
•RIGHT: Outlet or System Header
temperature
3
Temperature scale indicator: Fahrenheit
or Celsius
4
Configurable temperature read-outs (2):
•LEFT: Inlet or Setpoint
temperature
•RIGHT: Outlet or System Header
temperature
5
Operation Mode Indicators (2):
•LEFT: Demand or Manual
•RIGHT: Manager (BST only),
COMM when communicating
6
Edge Controller Touchscreen: see
Section 1.8, below
7
Soft Keys: see below
8
onAER Indicator Light
Fault Indicator Light
9
Ready Light
10
Enable/Disable Switch
11
Low Water Level Test buttons (2):
•TEST: Initiates Low Water test
•RESET: Resets unit after Low
Water test
1
2
3
6
4
5
7
10
11
9
8

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top left (not the title bar with home/previous icons) and moving right
and then down as in reading a book.
Edit
This button allows the editing of the parameter that is currently
selected through use of up/down arrows.
Enter
This button allows you to finalize a selection (for instance, a selected
from a menu or from a pop-up (for example, password entry input
completion).
Note, all alphanumeric data entry is entered in the touchscreen.
Clear
Clears a fault –the red Fault light goes out.
The Controller includes touchscreen reset functionality on the front panel. If the touchscreen
becomes non-responsive at any time, simply press the FAULT CLEAR button; this will reset the
touchscreen and should clear the problem.
1.8 Touchscreen Button Functionality
The touchscreen buttons function as follows:
Touchscreen Controls
Icon
Name
Description
Previous
Takes you to the previous screen.
Home
Takes you to the touchscreen’s Main Menu (see Figure 1.6). If
pressed during a procedure, it aborts the procedure.
Left Right
The LEFT arrow moves to previous point in the array or list and
RIGHT arrow moves to next point in the array or list.
Up/Down
The UP arrow increases a value, DOWN decreases value.
Page Left
Page Right
The arrows on left and right edges of the touchscreen scroll Page Left
or Page Right in a round-robin sequence.
Page Up
Page Down
On screens with multiple pages, the Page Up and Page Down buttons
moves up and down the pages.
Abort
The Abort button appears when a process may need to be exited prior
to completion.
Next
Pressing Next takes you to the next screen in a multi-step procedure.
Some procedures have a Proceed button instead.
Save
1. Pressing SAVE on a pop-up screen saves the entered data and
returns you to the previous screen.
2. Pressing SAVE on a non-popup screen saves the entered data and
takes you to the next screen.
Retry
Pressing Retry takes you to the previous screen and re-attempts the
process step that caused the notification message to appear.
Help
Takes you to a Help screen specific to the subject.

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1.9 Selections
When you press on an item, it turns green; pressing the button a second time de-selects that
option. On some screens, this opens the screen you chose. On other screens, the screen
remains until you press Next or Proceed.
Figure 1.9-1: Selected Item Indication –Color Change
Some controls that have only two options have a sliding “toggle” control that indicates the
current selection. In the example below on the left, Manual Mode is Disabled. To enable it,
simply press on the control; it switches to the opposite option, the background color changes,
and the label indicates the current state, as shown on the right-hand image.
Manual Mode Disabled Manual Mode Enabled
Figure 1.9-2: Toggle Controls
Some screens include a combination of “read only” and “user-selectable”parameters. Read-
Only parameters appear as plain text on a back background.
Figure 1.9-3: List Controls

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To make a selection in a user-selectable parameter, press on the field you want to change (the
word Select in the figure below); a list of options appears. When you select an option, the
original screen reappears with your selection displayed in the field.
Figure 1.9-4: List Controls
1.10 Aborting an Action
The abort action is available when a process has begun but may need to be terminated prior to
completion. This is initiated by pressing the Abort button, if available, or pressing the Home
button in the touchscreen’s upper-right corner.
The following occurs when a process is aborted:
1. A confirmation screen appears. Select Yes to abort the process. If no action is taken within
15 seconds, or if you select No, the abort is cancelled, and the process continues.
Figure 1.10: Abort Confirmation Screen
2. When an abort is successful, the process terminates, and you are returned to the original
screen. When an abort is performed on a screen that has multiple items, items that were
entered up to that point are saved.
3. If the process completes while the Abort confirmation screen is displayed, the Abort action is
nullified.

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1.11 Timeout
There is one timeout for both screen sleep mode and password level exit. The timeout is
defined as inactivity on the touchscreen and all front panel buttons.
•The default timeout period is 60 minutes.
•When a timeout occurs, the touchscreen goes into sleep mode and resets the access
level to the default.
•Any activity on the control panel (including a tap on the touchscreen) will activate the
touchscreen and display the Enter Password screen.
•
1.12 The Unit & Plant Status Screens
The Unit Status screen is the touchscreen’s default screen for Benchmark boilers. It is selected
by pressing Unit Status on the Main Menu.
Figure 1.12: Example Unit Status Screen –Status Message Displayed
This screen also appears when the unit powers on (after the splash screen), comes out of sleep
mode and has a successful flame ignition. You can manually navigate away from this screen at
any time, or the system will automatically transition to Ignition screen during the Ignition
sequence.

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The following notes apply to this screen:
•In normal operation, the area just below the screen heading displays operating status
and fault messages. Status messages have white lettering, Warning messages have
yellow lettering and Fault messages have red lettering, as shown above.
•Setpoint is not displayed on the unit if BST mode is enabled.
•The Max. Fire Rate parameter is displayed when the max fire rate is set to a quantity
other than 100% and the unit Target Fire Rate is -1% or more from the Max Fire Rate.
For a full description of this screen, see Section 7.2.
1.12.1 Plant Status Screen
If the unit is designated as the “Manager” in a Boiler Sequencing Technology (BST) cascade,
the Plant Status screen can also be displayed by pressing the Page Right arrow. This screen
appears only on the BST Manager.
Figure 1.12.1: Plant Status Screen
From this screen, you can navigate between this and the Unit Status Screen using the Left
Page and Right Page arrows.
For a full description of this screen, see Section 7.3: Plant Status.

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SECTION 2: EZ SETUP
The EZ Setup function configures the unit as either a Standalone unit or Client or Manager in a
Boiler Sequencing Technology (BST) Cascade group. If the current unit is the “Manager” of a
BST Cascade group, it sets the operating mode for the “Manager” unit. If it is a “Client” unit in a
BST Cascade group, it sets the operating mode for the “Client” unit.
The EZ Setup screen is accessed by pressing EZ Setup on the Main Menu.
Figure 2.0: Main Menu with EZ Setup Selected
This Section includes the following topics:
2.1: Backing Up and Restoring Settings
2.2: EZ Setup - Standalone
2.2.1 EZ Setup –Standalone –Space Heating Application
2.2.2 EZ Setup –Standalone –Domestic Hot Water Application
2.2.3 EZ Setup –Standalone –Other Application
2.3: EZ Setup - Boiler Sequencing Cascade
2.3.1: EZ Setup –BST Cascade –Client Units
2.3.2: EZ Setup –BST Cascade –Manager Units
2.3.2.1 EZ Setup: BST Manager –Single Application
2.3.2.1.1 EZ Setup: BST Manager –Space Heating Application
2.3.2.1.2 EZ Setup: BST Manager –Domestic Hot Water Application
2.3.2.1.3 EZ Setup: BST Manager –Other Application
2.3.2.2 EZ Setup: BST Manager –Two Applications
2.3.2.2.1 EZ Setup: BST Manager –Space Heating and DHW Applications
2.3.2.2.2 EZ Setup: BST Manager –DHW and Other Applications
2.3.2.2.3 EZ Setup: BST Manager –Space Heating and Other Applications
2.4: EZ Setup - Restoring a Previous Setup
WARNING:
Before starting the instructions in this section for the first time, you must ensure that the unit
has the latest Edge Controller firmware. Complete the instructions in Section 6.2.7: Firmware
Update to obtain and install the latest firmware.

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2.1 Backing Up and Restoring Settings
It is time consuming to setup a unit with correct values for all parameters so it can operate as
efficiently as designed. The Edge Controller provides the option of saving the value of all
parameters configured during setup to either the Controller’s internal memory or to an external
USB device plugged into the side of the Controller. The saved settings can then be restored at
any time, ensuring that the time spent setting up and fine tuning the parameters is not lost.
This is a useful step for two reasons:
•It provides a copy of the original setup, in case it becomes corrupted either through
hardware malfunction or operator error.
•The saved settings can be exported and then uploaded on other units of the same type in
the plant, greatly reducing the time needed to setup other units.
AERCO recommends using this option to guard against the need to recreate a setup from
scratch. Instructions are in the following Sections:
•6.2.3: Save and Transfer Settings
•Section 2.5: EZ Setup –Restoring a Previous Setup
If a setup was already performed on this (or another similar) unit, and you want to re-load that
setup, see Section 2.5: EZ Setup –Restoring a Previous Setup.
2.2 EZ Setup: Standalone
Complete the instructions below only if the boiler is a standalone unit.
1. Go to: Main Menu →EZ Setup.
2. If the unit was previously setup, the EZ Setup screen appears showing a summary of the
previous setup. Press Abort to retain the previous setup or press Next to continue.
Figure 2.2-1: Standalone: EZ Setup Screen

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3. The Select Configuration screen appears. Press Standalone. Press Next to continue.
Figure 2.2-2: Standalone: Select Configuration Screen
4. The Time And Date screen appears. If both are correct, press Next to continue. If not,
press either field and enter the correct time (requires 4 digits) or date (requires 8 digits) and
then press Save.
Figure 2.2-3: Standalone: Enter Date Screen
5. If a previous setup was performed and saved, the Load Settings screen appears. To re-
load that setup, press Yes and see Section 2.5: Restoring a Previous Setup for instructions.
Press No to continue to the next step.
Figure 2.2-4: Standalone: Load Settings Screen

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6. Press on the boiler application that this unit will employ. The selected application turns
green. Press Next and then complete the instructions in the section below that applies to
your choice.
Figure 2.2-5: Standalone: Select Boiler Application(s) Screen
2.2.1 EZ Setup: Standalone –Space Heating Application
Complete these instructions only if you chose Space Heating at the end of the previous
Section.
Figure 2.2.1-1: Standalone –Space Heating: Select Your Boiler Application Screen