FULTON HYDRONIC PURE CONTROL Endura User manual

HYDRONIC PURE CONTROL™
USER MANUAL
Serial/ National
Board Number
Model
Fulton Order
Owner
Site Name
Date
Hydronic-PURE-Control-UserManual-211214
R





Endura (EDR)
Condensing Hydronic Boilers
750,000 - 2,000,000 BTU/HR
Endura+ (EDR+)
Condensing Hydronic Boilers
2,500,000 - 6,000,000 BTU/HR

Questions? Please Contact Your Local Manufacturer’s Representative
Hydronic-PURE-Control-UserManual-211214 TABLE OF CONTENTS
0-1
Introduction 1-1
Overview .............................................................................................................. 1-2
Warnings & Cautions............................................................................................ 1-2
Disclaimers and Local Codes ................................................................................ 1-2
Installation 2-1
Overview .............................................................................................................. 2-2
Control Display Hardware..................................................................................... 2-2
Graphical Icon Reference Menu ........................................................................... 2-5
Control Menus 3-1
Overview .............................................................................................................. 3-2
Boiler Control Menu ............................................................................................. 3-2
BOILER STATUS SCREEN ..............................................................................................................33
SAFETY DEVICE STATUS SCREEN.................................................................................................37
OPERATOR CONTROL ...................................................................................................................39
BOILER HISTORY ........................................................................................................................311
ALARM HISTORY........................................................................................................................312
MAINTENANCE LOG...................................................................................................................313
ISOLATION VALVES.....................................................................................................................314
PRIMARY BOILER PUMP CONTROL........................................................................................316
SECONDARY SYSTEM PUMP CONTROL..................................................................................318
Lead/Lag Menu.................................................................................................. 3-22
LEAD/LAG STATUS .....................................................................................................................324
LEAD/LAG CONFIGURATION......................................................................................................326
HYDRONIC PARALLEL LEAD/LAG SEQUENCE ...........................................................................327
PID Control Menu and Boiler Modiers.............................................................. 3-28
DELTA T PROTECTION EDR+ BOILERS ONLY ..........................................................................329
VENTING LIMITATION ...............................................................................................................330
LOCAL PID ..................................................................................................................................331
LOW FIRE HOLD..........................................................................................................................332
COLD START................................................................................................................................333
FREEZE PROTECTION .................................................................................................................334
OUTLET MONITORING................................................................................................................335
Setpoint Menu ................................................................................................... 3-36
SETPOINT CONFIGURATION.......................................................................................................336
OUTDOOR RESET........................................................................................................................338
BMS ANALOG.............................................................................................................................339
Scheduling Menu............................................................................................... 3-41
Trending Screen.................................................................................................. 3-43
Admin Menu ...................................................................................................... 3-44
USER CONFIGURATION..............................................................................................................344
SYSTEM CONFIGURATION .........................................................................................................345
AUXILIARY CONFIGURATION....................................................................................................346
DOMESTIC HOTWATER CONFIGURATION.................................................................................347
UNIVERSAL DATA CONFIGURATION..........................................................................................349
LOCAL BOILER NETWORK STATUS ............................................................................................350
BMS NETWORK STATUS.............................................................................................................351
SYSTEM DIAGNOSTICS MENU...................................................................................................352
CONTROLS DIAGNOSTICS..........................................................................................................352
CALL FOR HEAT DIAGNOSTICS...................................................................................................353
SENSOR DIAGNOSTICS...............................................................................................................353
LEAD/LAG DIAGNOSTICS...........................................................................................................354
Downloading a Program Update 4-1
Overview .............................................................................................................. 4-2
Verifying which hardware is installed in the boiler ............................................. 4-2
Preparing the software on a ash drive............................................................... 4-2
Performing the Update........................................................................................ 4-6
Preparing for Lead/Lag Operation 5-1
Overview .............................................................................................................. 5-2
Wiring the Boilers for Lead/Lag Operation.......................................................... 5-2
Conguring the PLC for Lead/Lag Operation....................................................... 5-2
Exporting Data using the File Manager 6-1
Overview .............................................................................................................. 6-2
Taking a Snapshot................................................................................................ 6-5
Taking a Screenshot ............................................................................................. 6-7
BMS Integration 7-1
Overview .............................................................................................................. 7-2
Wiring................................................................................................................... 7-2
Hydronic PURE Control™ Settings........................................................................ 7-2
Wiring/Setup for a Protonode with the Hydronic PURE Control™....................... 7-2
WIRING........................................................................................................................................72
Hydronic PURE Control™ BMS Points List............................................................. 7-3
Hydronic PURE Control™ Alarm List..................................................................... 7-7

© Fulton Group N.A., Inc. 2020
TABLE OF CONTENTS Hydronic-PURE-Control-UserManual-211214
0-2

Questions? Please Contact Your Local Manufacturer’s Representative 1-1
INTRODUCTION
INTRODUCTION
1
HARDWARE AND NAVIGATION 2
CONTROL MENUS 3
DOWNLOADING A PROGRAM UPDATE 4
PREPARING FOR LEAD/LAG OPERATION 5
EXPORTING DATA USING THE FILE MANAGER 6
BMS INTEGRATION 7

© Fulton Group N.A., Inc. 2020
INTRODUCTION Hydronic-PURE-Control-UserManual-211214 SECTION 1
1-2
Overview
This addendum is specic to the usage of the Hydronic PURE
Control™ and should be used in conjunction with the current
version of the Endura or Endura+ Installation and Operation
manual.
Fulton reserves the right to change any part of this
addendum.
When using this addendum, observe all warnings, cautions,
and notes in literature, on stickers and labels, and any
additional safety precautions that apply. Follow all safety
codes and wear appropriate safety protection. Follow all
jurisdictional codes and consult any jurisdictional authorities
prior to installation.
Warnings & Cautions
WARNINGS and CAUTIONS appear in various chapters of this
addendum. It is critical that all personnel read and adhere to
all information contained in WARNINGS and CAUTIONS.
WARNINGS must be observed to prevent serious injury
or death to personnel.
CAUTIONS must be observed to prevent damage
or destruction of equipment or loss of operating
eectiveness.
All Warnings and Cautions are for reference and guidance
purposes, and do not substitute for required professional
training, conduct, and strict adherence to applicable
jurisdictional/professional codes or regulations.
Disclaimers and Local Codes
Installation of the equipment shall conform to all the
requirements of all national, state and local codes established
by the authorities having jurisdiction or, in the absence
of such requirements, in the US to the National Fuel Gas
Code ANSI Z223.1/NFPA 54 latest edition, and the specic
instructions in this addendum. Authorities having jurisdiction
should be consulted prior to installation.
When required by local codes, the installation must conform
to the American Society of Mechanical Engineers Safety Code
for Controls and Safety Devices for Automatically Fired Boilers
(ASME CSD-1).
The boiler heat exchanger is manufactured and stamped
in accordance with ASME Boiler and Pressure Vessel Code,
Section IV for a maximum allowable working pressure
and operating temperature of 160 psig and 210°F (99°C),
respectively.

Questions? Please Contact Your Local Manufacturer’s Representative 2-1
HARDWARE AND NAVIGATION
INTRODUCTION
1
HARDWARE AND NAVIGATION 2
CONTROL MENUS 3
DOWNLOADING A PROGRAM UPDATE 4
PREPARING FOR LEAD/LAG OPERATION 5
EXPORTING DATA USING THE FILE MANAGER 6
BMS INTEGRATION 7

© Fulton Group N.A., Inc. 2020
2-2
HARDWARE AND NAVIGATION Hydronic-PURE-Control-UserManual-211214 SECTION 2
! WARNING
This addendum is specic to the usage
of the Hydronic PURE Control™ and
should be used in conjunction with
the current version of the respective
boiler's Installation and Operation
manual. Both should be read in their
entirety and be made permanently
available to the sta responsible for
equipment operation.
This addendum should not be
considered as a complete guide, nor
should it replace existing guides or
standards which may be applicable.
Fulton reserves the right to change
any part of this addendum and
the corresponding Installation and
Operation manual without notice.
Do not install, operate, service
or repair any component of this
equipment unless you are qualied
and fully understand all requirements
and procedures.
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes or
regulations.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Immediately call your gas
supplier from a neighbor’s phone.
• Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
A qualied installer, service agency
or the gas supplier, must perform
installation and service.
Overview
Hydronic PURE Control™ hardware and screen navigation are explained in the
sections that follow.
Screenshots are for reference only, and will vary by boiler product line and PURE
Control™ version.
Please be aware of which conguration has been supplied for your application.
The customer should examine the equipment for any damage. It is the
responsibility of the installer to ensure all parts supplied with the equipment are
tted in a correct and safe manner.
Control Display Hardware
EDR+ control display hardware is shown below and described in Table 1.
TABLE 1  CONTROL DISPLAY HARDWARE CONNECTIONS
1Screen Protector Plastic removable sheet.
2Audio Outlet and
Seal
Embedded Speaker for use when the Alarm Horn is
Enabled.
3DIN-rail Support and Installation of the CPU and other
modules.
424VDC Power Power for the Display and attached Modules.
5Ethernet Port(s) Allow for communication between boilers and Lead/
Lag operation.
6-7 USB Ports Used for transferring information to/from the display
and program updated in the eld.
8Micro SD Slot Stores operating information and customer defaults
for the boiler.
9Audio Jack Allows for use of external speakers/headphones.
10 Auxiliary
Connection
Connection point for CPU module.
11 Mounting slots Slots for installing mounting hardware.

Questions? Please Contact Your Local Manufacturer’s Representative 2-3
SECTION 2 Hydronic-PURE-Control-UserManual-211214 HARDWARE AND NAVIGATION
! WARNING
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct, and strict
adherence to applicable jurisdictional/
professional codes or regulations.
Follow all proper lockout/tagout
procedures for service. Before beginning
any service, ensure area is free of
combustible materials and other dangers.
In order to meet warranty conditions,
ensure all appropriate maintenance
activities are performed.
The information contained in this manual
is based on EDR+ version 1.3.7.9 and is
written to cover a wide range of functions
and features, some of which may not be
available on every boiler. Human Machine
Interface (HMI), algorithms, features and
functions will vary depending on program
version and boiler model. For detailed
information specic to your boiler, please
have your boiler FHS Serial Number and
PURE Control™ software version ready
and contact your Fulton Representative
for further support.
Hydronic PURE Control™ display hardware dimensions are shown below.

© Fulton Group N.A., Inc. 2020
2-4
HARDWARE AND NAVIGATION Hydronic-PURE-Control-UserManual-211214 SECTION 2
! WARNING
This addendum is specic to the usage
of the Hydronic PURE Control™ and
should be used in conjunction with
the current version of the respective
boiler's Installation and Operation
manual. Both should be read in their
entirety and be made permanently
available to the sta responsible for
equipment operation.
This addendum should not be
considered as a complete guide, nor
should it replace existing guides or
standards which may be applicable.
Fulton reserves the right to change
any part of this addendum and
the corresponding Installation and
Operation manual without notice.
Do not install, operate, service
or repair any component of this
equipment unless you are qualied
and fully understand all requirements
and procedures.
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes or
regulations.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Immediately call your gas
supplier from a neighbor’s phone.
• Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
A qualied installer, service agency
or the gas supplier, must perform
installation and service.
The EDR+ control display hardware CPU is shown and described below.
Screen Navigation
The boiler control system features an integrated color touchscreen display
through which many commissioning and operation tasks are performed,
including temperature control and multiple boiler sequencing setup. The
graphical interface is navigated by touch using your nger or a stylus.
The Menu screens are grouped into categories, and each serves a unique
function for changing parameters or viewing statuses. To change categories,
tap the desired category in the left sidebar menu. A navigation screen provides
access to screens within each category. Tap the “back”button to return to
category navigation.

Questions? Please Contact Your Local Manufacturer’s Representative 2-5
SECTION 2 Hydronic-PURE-Control-UserManual-211214 HARDWARE AND NAVIGATION
! WARNING
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct, and strict
adherence to applicable jurisdictional/
professional codes or regulations.
Follow all proper lockout/tagout
procedures for service. Before beginning
any service, ensure area is free of
combustible materials and other dangers.
In order to meet warranty conditions,
ensure all appropriate maintenance
activities are performed.
Graphical Icon Reference Menu
A listing and functional description of each of the graphical icons found within
the touchscreen menus is provided below in Table 2.
TABLE 2  GRAPHICAL ICON REFERENCE MENU
Button Function
Returns to the parent category.
Tap to display information based
on the screen currently selected.
Green: No alarm condition. Tap to
see Alarm History.
Yellow: Warning or Soft Alarm
active. Tap to see Alarm History.
Red: Alarm or Lock-Out active. Tap
to see Alarm History.
Green: Maintenance Inactive. Tap
to go to the Maintenance screen.
Yellow: Time For Service. Tap to go
to the Maintenance screen.
Green: Locked. Some screens may
not be accessible as congured
by the boiler plant administrator.
Tap the icon and enter the
administrative password to unlock.
Yellow: Unlocked. Screens locked
by the boiler plant administrator
are now accessible. Tap the icon
again to lock. The screen will
automatically re-lock after 1-10
minutes (user adjustable).
Green: Lead/Lag Network Active.
Tap to enter Ethernet/IP Status.
Red: Lead/Lag Network
Communication Lost or
Recovering. Tap to enter Ethernet/
IP Status.
Gray: Lead/Lag Network Inactive.
Tap to enter Ethernet/IP Status.

© Fulton Group N.A., Inc. 2020
HARDWARE AND NAVIGATION Hydronic-PURE-Control-UserManual-211214 SECTION 2
2-6
PAGE LEFT INTENTIONALLY BLANK

Questions? Please Contact Your Local Manufacturer’s Representative 3-1
CONTROL MENUS
INTRODUCTION
1
HARDWARE AND NAVIGATION 2
CONTROL MENUS 3
DOWNLOADING A PROGRAM UPDATE 4
PREPARING FOR LEAD/LAG OPERATION 5
EXPORTING DATA USING THE FILE MANAGER 6
BMS INTEGRATION 7

© Fulton Group N.A., Inc. 2020
3-2
CONTROL MENUS Hydronic-PURE-Control-UserManual-211214 SECTION 3
! WARNING
This addendum is specic to the usage
of the Hydronic PURE Control™ and
should be used in conjunction with
the current version of the respective
boiler’s Installation and Operation
manual. Both should be read in their
entirety and be made permanently
available to the sta responsible for
equipment operation.
This addendum should not be
considered as a complete guide, nor
should it replace existing guides or
standards which may be applicable.
Fulton reserves the right to change
any part of this addendum and
the corresponding Installation and
Operation manual without notice.
Do not install, operate, service
or repair any component of this
equipment unless you are qualied
and fully understand all requirements
and procedures.
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes or
regulations.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Immediately call your gas
supplier from a neighbor’s phone.
• Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
A qualied installer, service agency
or the gas supplier, must perform
installation and service.
Overview
The screenshots and information in this section will guide you through the
control menu screens.
When entering in values to the control use the same number of decimal places
as shown in the range information at the top of the entry box.
Boiler Control Menu
This screen is used for multiple functions: access to statuses, alarms, operator
settings, and other selectable features including pump and valve control.
+

Questions? Please Contact Your Local Manufacturer’s Representative 3-3
SECTION 3 Hydronic-PURE-Control-UserManual-211214 CONTROL MENUS
! WARNING
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct, and strict
adherence to applicable jurisdictional/
professional codes or regulations.
Follow all proper lockout/tagout
procedures for service. Before beginning
any service, ensure area is free of
combustible materials and other dangers.
In order to meet warranty conditions,
ensure all appropriate maintenance
activities are performed.
Boiler Status Screen
Provides information on how the boiler is operating including VFD, LMV, and O2
Sensor readings and status.

© Fulton Group N.A., 2020
CONTROL MENUS Hydronic-PURE-Control-UserManual-211214 SECTION 3
3-4
Parameter Name Range Unit Description Wiring Modbus
Register
Boiler Status 0 - Safety Lock Out
2 - Safety Phase
10 - LMV Home Run
12 - Standby
22 - Fan Motor
24 - Air Damper
30 - Prepurging
36 - Air Damper
38 - Preignition
39 - Testing Pressure Switch
40 - Fuel Valve
42 - Ignition
44 - Interval 1
50 - Safety Time 2
52 - Interval 2
60-62 - Running
70-72 - Afterburn Time
74-78 - Postpurge Time
80 - Evacuation of Test Space
81 - Atmospheric Pressure Test
82 - Filling of Test Space
83 - Gas Pressure Test
90 - Gas Shortage Waiting Time
91 - Limit String Open
N/A Status and Phase number from
the LMV3.
3-Wire Shielded Modbus
Factory Wired D+/D-/SG
40000
INT16
Read
Control 0 - L/L Waiting
1 - Disabled
2 - Not Available
3 - L/L: Lead
4 - L/L: Lag 1
5 - L/L: Lag 2
6 - L/L: Lag 3
7 - L/L: Lag 4
8 - L/L: Lag 5
9 - L/L: Lag 6
10 - L/L: Lag 7
11 - L/L: Lag 8
12 - L/L: Lag 9
13 - L/L: Lag 10
14 - L/L: Lag 1 (T)
15 - L/L: Lag 2 (T)
16 - L/L: Lag 3 (T)
17 - L/L: Lag 4 (T)
18 - L/L: Lag 5 (T)
19 - L/L: Lag 6 (T)
20 - L/L: Lag 7 (T)
21 - L/L: Lag 8 (T)
22 - L/L: Lag 9 (T)
23 - L/L: Lag 10 (T)
24 - Local
25 – Manual
N/A Lead/Lag Status
(T) Designates a temporary
position where the boiler will
take a normal place in the Lead/
Lag sequence after the next call
for heat.
*Boilers must be connected and
congured for the Lead/Lag
feature in order to be assigned a
Lead/Lag position.
*If communication is lost be-
tween boilers in a Lead/Lag setup
they will revert back to individu-
al/local control.
CAT5e Ethernet Cable from pass-
through port on back of the electri-
cal panel
Field Wired between boilers for a 2
boiler setup -or- if 3 or more boil-
ers then use the factory supplied
Ethernet Switch
Factory Wired from Fulton Control-
ler Port 1
40001
INT16
Read
Modulation 0 - Normal Rate
1 - Low Fire Hold
2 - Cold Start
3 - Freeze Protection
4 - Delta T Protection
5 - Outlet Soft Limit
6 - Venting Limitation
N/A Designates which modier if any
are active.
*See PID Control Section for
modier descriptions
N/A
(Determined by Fulton Controller)
40002
INT16
Read
Modulation
Target
0.0 – 100.0 % Desired Modulation rate as cal-
culated by the Fulton controller
being sent to the LMV3.
3-Wire Shielded Modbus from
LMV3
Factory Wired D+/D-/SG
40003
INT16
Read
Rate 0.0 – 100.0 % % Actual Firing Rate as read back
from the LMV3.
3-Wire Shielded Modbus
Factory Wired D+/D-/SG
40004
INT16
Read
Flame Signal 0.0 – 100.0 % % Flame signal as seen by the UV
scanner and read back from the
LMV3.
3-Wire Shielded Modbus Fac-
tory Wired D+/D-/SG
40005
INT16
Read

Questions? Please Contact Your Local Manufacturer’s Representative
SECTION 3 HHydronic-PURE-Control-UserManual-211214 CONTROL MENUS
3-5
Parameter Name Range Unit Description Wiring Modbus
Register
Air Actuator -50.0 - 150.0 ° Current Air Actuator position as
read back from the LMV3.
3-Wire Shielded Modbus Factory
Wired D+/D-/SG
40006
INT16
Read
Fuel Actuator -50.0 - 150.0 ° Current Fuel Actuator position as
read back from the LMV3.
3-Wire Shielded Modbus Factory
Wired D+/D-/SG
40007
INT16
Read
Boiler Outlet -50.0 – 250.0 F Sensor is required for boiler
operation.
RTD
Factory Wired T13/T14
40017
INT16
Read
Inlet Water -50.0 – 250.0 F Sensor is required for boiler
operation.
RTD
Factory Wired
T9/T10
40018
INT16
Read
Exhaust -50.0 – 250.0 F Stack Temp
Sensor is required for boiler
operation.
RTD
Factory Wired T11/T12
40022
INT16
Read
Combustion -50.0 – 250.0 F Combustion Air Inlet Temp
Sensor is required for boiler
operation.
RTD
Factory Wired T15/T16
40023
INT16
Read
Setpoint (SP) -50.0 – 250.0 F Current Setpoint as determined
by the Fulton Controller
- Outdoor Reset SP
- Remote 4-20mA SP
- Remote 0-10VDC SP
- BMS Network SP
- Manual SP
Outdoor Air SP requires RTD or BMS
provided Temperature.
Field wiring for 0-10VDC
TB4-A3 / TB4 - A4
Field wiring for 4-20mA at TB4-A1
/ TB4 - A2
40024
INT16
Read
Boiler Start 0.0 - 100.0 F How far below setpoint the boiler
will receive a call for heat.
(Setpoint – Boiler Start)
N/A 40020
INT16
Read
Boiler Stop 0.0 - Maximum Setpoint F How far above setpoint the boiler
will lose a call for heat.
(Setpoint + Boiler Stop)
N/A 40021
INT16
Read
VFD Status 0 – No Fault
2 – Auxiliary Input
3 – Power Loss
4 – Under voltage
5 – Overvoltage
6 – Motor Stalled
7 – Motor Overload
8 – Heatsink Over Temperature
12 – Hardware Overcurrent 300%
13 – Analog Input Loss
14 – Auto Restart Tried
38 – Phase U to Ground Short
39 – Phase V to Ground Short
40 – Phase W to Ground Short
41 – Phase U / V Short
42 – Phase U / W Short
63 – Software Overcurrent
70 – Power Unit Failure
80 – Auto tune Failure
122 – I/O Board Failure
N/A Status from the VFD 3-Wire Shielded
Modbus
Factory Wired D+/D-/SG
40008
INT16
Read
O2 Status 0 – Normal Operation
1 – E1: Internal Communication Error
2 – E2: Internal Register Error
3 – E3: Short to Power
4 – E4: Short to Ground
5 – E5: Short to Power
6 – E6: Short to Ground
7 – E7: Short to Power
8 – E8: Short to Ground
9 – E9: Operating Voltage Too Low
10 – E10: Check Sensor Connection
11 – E11: Heater Circuit Short
12 – E12: Heater Circuit Short
13 – Service Sensor
N/A Status from the O2 Control Board 3-Wire Shielded
Modbus
Factory Wired D+/D-/SG
40009
INT16
Read

© Fulton Group N.A., 2020
CONTROL MENUS Hydronic-PURE-Control-UserManual-211214 SECTION 3
3-6
Parameter Name Range Unit Description Wiring Modbus
Register
VFD Command 0.0 – 95.0 Hz VFD rate as sent from the Sie-
mens LMV3.
3-Wire Shielded
Modbus
Factory Wired D+/D-/SG
40010
INT16
Read
VFD Feedback 0.0 – 95.0 Hz VFD rate being read back. 3-Wire Shielded
Modbus
Factory Wired D+/D-/SG
40011
INT16
Read
VFD Output
Current
0.00 – 15.00 A VFD current being read back. 3-Wire Shielded
Modbus
Factory Wired D+/D-/SG
40012
INT16
Read
% Dry O2 0.00 – 21.00 % O2 value provided by the Control
Board/sensor.
3-Wire Shielded
Modbus
Factory Wired D+/D-/SG
40016
INT16
Read
Boiler Delta T -50.00 – 250.00 F Calculated by the Fulton Control-
ler.
N/A
Utilizes Factory wired inlet/outlet
RTD sensors
40019
INT16
Read
Outdoor Air -50.00 – 250.00 F Optional RTD sensor for Outdoor
Air Temperature.
Used for Outdoor reset of the
Setpoint and Outdoor Air Cuto.
The Boiler will revert to the local/
Manual setpoint if this signal is
lost.
RTD
Field Wired to customer connec-
tions
TB4-T5/TB4-T6
-or-
Provided through BMS connection
40025
INT16
Read/
Write
System Supply -50.00 – 250.00 F Optional RTD sensor for System
Supply or Header temperature.
Required for Lead/Lag operation
with multiple boilers.
The Boiler will revert to the local/
Manual setpoint if this signal is
lost.
RTD
Field Wired to customer connec-
tions
TB4-T1/TB4-T2
-or-
Provided through BMS connection
40026
INT16
Read/
Write
System Return -50.00 – 250.00 F Optional RTD sensor for System
Return or Return Header tem-
perature.
Used for System Delta T calcula-
tion but otherwise is display
only.
RTD
Field Wired to customer connec-
tions
TB4-T3/TB4-T4
-or-
Provided through BMS connec-
tion
40027
INT16
Read/
Write
System Delta T -50.00 – 250.00 F Calculation done by the Fulton
Controller.
Uses eld wired System Supply
and System Return Temperatures
40028
INT16
Read
Domestic Tank -50.00 – 250.00 F Optional RTD sensor for
Domestic Hot Water Tank Tem-
perature.
Required for Domestic Hot
Water Operation.
RTD
Field Wired to customer connec-
tions
TB4-T7/TB4-T8
-or-
Provided through BMS connec-
tion
40029
INT16
Read/
Write

Questions? Please Contact Your Local Manufacturer’s Representative 3-7
SECTION 3 Hydronic-PURE-Control-UserManual-211214 CONTROL MENUS
! WARNING
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct, and strict
adherence to applicable jurisdictional/
professional codes or regulations.
Follow all proper lockout/tagout
procedures for service. Before beginning
any service, ensure area is free of
combustible materials and other dangers.
In order to meet warranty conditions,
ensure all appropriate maintenance
activities are performed.
Safety Device Status Screen
This screen provides real time statuses of boiler safeties and interlocks as well
as a low water test feature.
Devices will either have a green circle to the left indicating closed circuit or
a red circle indicating the device is open. The rst device indicated as the
“open limit” is the rst device in the safety circuit open and should be the rst
device addressed during troubleshooting as many of the safeties are wired in
series. The boiler specic electrical wiring diagram should be referenced when
troubleshooting.
Once the boiler is full of water, the following test of low-water cuto can be
accomplished:
1. Navigate to and tap the Test Low Water button on the Endura+ control.
2. Reset the Low Water condition by tapping the Reset Low Water button.
3. Perform appropriate test for any secondary Low Water controls.
Safety Device Description Wiring Modbus
Register
Primary Low
Water
Manual Reset at the
Touch Screen Display. The
Test function allows for a
self-test of the electrical
circuits inside the low
water relay.
Factory wired LWSR1 between termi-
nals H/2.
Part of the initial Burner Switch
circuit that powers the LMV3 terminal
X5.03.1
40032
INT16
Read
High Tempera-
ture Limit
Manual Reset at the
Honeywell High Limit
Aquastat.
Factory wired HLTC between termi-
nals 4/5
Part of the initial Burner Switch
circuit that powers the LMV3 terminal
X5.03.1
40033
INT16
Read

© Fulton Group N.A., Inc. 2020
3-8
CONTROL MENUS Hydronic-PURE-Control-UserManual-211214 SECTION 3
! WARNING
This addendum is specic to the usage
of the Hydronic PURE Control™ and
should be used in conjunction with
the current version of the respective
boiler’s Installation and Operation
manual. Both should be read in their
entirety and be made permanently
available to the sta responsible for
equipment operation.
This addendum should not be
considered as a complete guide, nor
should it replace existing guides or
standards which may be applicable.
Fulton reserves the right to change
any part of this addendum and
the corresponding Installation and
Operation manual without notice.
Do not install, operate, service
or repair any component of this
equipment unless you are qualied
and fully understand all requirements
and procedures.
All information in this addendum is
for reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes or
regulations.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building.
• Immediately call your gas
supplier from a neighbor’s phone.
• Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
A qualied installer, service agency
or the gas supplier, must perform
installation and service.
Safety Device Description Wiring Modbus
Register
Operating
Temperature
Control
Auto-Resetting Honey-
well Aquastat
Set lower than the High
Limit Aquastat to prevent
a manual reset/lockout
condition.
Factory wired OTC between terminals
5/6
Part of the initial Burner Switch
circuit that powers the LMV3 terminal
X5.03.1
40034
INT16
Read
On/O Switch Clear push button switch
on the front of the boiler
that illuminates white
when switched on.
Factory wired PB1
Part of the initial Burner Switch
circuit that powers the LMV3 terminal
X5.03.1
40031
INT16
Read
LMV Safety Loop Monitored from the LMV3
(X3.04.1 and X3.04.2) and
includes items such as
the High Gas Pressure
(HGP) and Electrical Panel
Switch (PS) for the 4-6MM
units.
3-Wire Shielded Modbus
Factory Wired D+/D-/SG
N/A
Low Gas
Pressure
Monitored from the LMV3
(X5.01.2 and X5.01.3).
Requires a Manual reset at
the touch screen control.
3-Wire Shielded Modbus
Factory Wired D+/D-/SG
40036
INT16
Read
Blocked Exhaust Monitored by the Fulton
Controller.
Manual resetting + 2”
w.c. limit that is not eld
adjustable.
Factory wired Blocked Flue between
terminals V1+/X4
40038
INT16
Read
Customer
Interlock 1 & 2
Monitored by the Fulton
Controller.
Two optional customer in-
puts for site specic safe-
ties such as end switch,
ow switch, or other
interlocks that should be
true (energized) before
the boiler will run.
Field Wired between TB4-ILK1/ILK2
and TB4-ILK3/ILK4
*Remove factory installed jumper(s)
before use
40039
40040
INT16
Read
Bus Interlock BMS Start/Stop contact
congurable on the ‘Uni-
versal Data Screen‘ for
single boiler or Lead/Lag
(all connected boilers).
Field wired between TB4-BMS1 and
TB4-BMS2
*Remove factory installed jumper(s)
before use
N/A
Auxiliary Low
Water
Optional second Low Wa-
ter that can be enabled
on the ‘Auxiliary Congu-
ration’ Screen.
Factory wired relay base
Field wiring requires Relay, Probe, and
wiring in the eld
Part of the initial Burner Switch
circuit that powers the LMV3 terminal
X5.03.1
*Remove factory installed jumper(s)
before use
40041
INT16
Read