Laars NEOTHERM NTH Series User guide

Start Up Guide Document 1278
Start Up Guide for
NEOTHERM
®
Modulating Boilers and
Water Heaters with the
EMEA Display
Model NTH & NTV
Sizes 080–850 MBTU/h

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LAARS Heating Systems
TABLE OF CONTENTS
Operating the Interface
Navigating the Operator Interface---------------------------------------------------------------------------3
Info/Install Display, Sub-Menu---------------------------------------------------------------------------------4
Entering the password-------------------------------------------------------------------------------------------5
Changing the setpoint--------------------------------------------------------------------------------------------5
Navigating Set Up
Adjusting LCD contrast-----------------------------------------------------------------------------------------6
Customizing the Home Screen--------------------------------------------------------------------------------6
Changing from Fahrenheit to Celsius------------------------------------------------------------------------6
Single boiler Set Up (using Quick Start)
Adjust Central Heat set point---------------------------------------------------------------------------------7
Adjust DHW set point-------------------------------------------------------------------------------------------7
Single boiler Outdoor reset------------------------------------------------------------------------------------7
Low Water Temperature---------------------------------------------------------------------------------------8
Max Outdoor Temperature------------------------------------------------------------------------------------8
Min Outdoor Temperature-------------------------------------------------------------------------------------8
Warm Weather Shut Down------------------------------------------------------------------------------------8
Cascading multiple boilers
Lead Lag Set Point-----------------------------------------------------------------------------------------------9
Lead Lag Outdoor Reset----------------------------------------------------------------------------------------9
Warm Weather Shut Down-----------------------------------------------------------------------------------9
DHW Set Point using Lead Lag------------------------------------------------------------------------------10
Enable Master Control Function---------------------------------------------------------------------------10
Enable Slave Control Function on Master Control-----------------------------------------------------10
Naming each boiler--------------------------------------------------------------------------------------------11
Adjust Base load------------------------------------------------------------------------------------------------11
Modbus Address-----------------------------------------------------------------------------------------------12
Slave Boilers Set Up-------------------------------------------------------------------------------------------12
Combustion Set Up
High Fire Navigation-----------------------------------------------------------------------------------------13
Low Fire Navigation------------------------------------------------------------------------------------------13
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NEOTHERM Boilers and Water Heaters
INTERFACE
Display area This area displays several different kinds of information, including current operating
information, setup parameters, and messages from the SOLA controller.
Up/ Down Arrow buttons Use these buttons to go to the choice you want to select in the display area.
Left/ Right Arrow buttons Use these buttons to go to the choice you want to select in the display area.
Back button Use this button to return to the previous display.
Info/ Install button Press this button at any time to access the sub-menus that allow you to set up
and monitor the controller.
Home button Press this button at any time to return to the Home display.
Round OK button Use the round OK button to confirm a value or action.
Note – Sometimes the system will present the Keyboard display screen, which
includes a separate “OK” area. This is not the same as the round OK button– the two
have different functions.
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LAARS Heating Systems
Sub Menu Screen
Quick Start
This menu gives you an easy way to check or change the most common settings on
the unit
• CH set point
• DHW set point
• Outdoor reset
• Low water temperature
• Maximum outdoor temperature
• Minimum outdoor temperature
• Adjustable high limit
• Adjustable Stack limit
Login If you want to change a setup value or function, and the system requires a
password, enter it here. Password is LNT in lower case, (lnt).
Test Allows you to choose Forced Firing, Manual Burner or Manual Pump Operation.
Advanced Setup Allows you to configure the system settings.
Diagnostics Used to check the recorded Lock Out and Alert history, Sensors, and Digital IO.
Display Setup Used to adjust the contrast of the display or change how the items are displayed on
the Home screen.
To move from one choice to another, use the Left and Right arrow
buttons or the Up and Down arrow buttons. Once you have highlighted
the choice you want, press the OK button.
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NEOTHERM Boilers and Water Heaters
Navigating the Password and Setpoint Screens
•Navigation
•Home Screen, Press “I” Info/Install button
•Use Arrow buttons to highlight “Login”
•Press OK
•Use the Left/Right and Up/Down arrow buttons to navigate
through the screen.
•Highlight the desired letter, then press the round OK button,
(on touch pad). Repeat the steps until the password is typed in.
•Next use the arrow buttons and scroll to highlight the (ok) button
on the screen.
•Now press the round OK button, (on touch pad)
•Navigation
•Home Screen, Press “I” Info/Install button
•Use Arrow buttons to highlight “Quick Start”
•Press OK
•Select “CH Setpoint”
•Press OK
•You can use the UP or Down buttons to change the set point.
Then press “OK”.
Or use the left arrow button and scroll to highlight the +/-tab on
the screen.
•With the +/- tab Highlighted use the Up or Down buttons to
adjust the set point.
•Next, use the Right arrow button to scroll and highlight the (ok)
button on the screen.
•Now press the round OK button, (on touch pad).
Password Screen
Password is LNT in lower case (lnt)
Set Point Screen
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LAARS Heating Systems
Adjusting LCD contrast
This feature is used to lighten or darken the display screen.
Navigation
•Home screen, press “I” Info/Install button
•Use the arrow buttons to highlight “Display Set Up”
•Press OK
•“LCD contrast” is highlighted, Press OK
•Use Left or Right arrow buttons to adjust the brightness, press OK
Customizing the Home Screen
The top five lines on the Home Screen can be customized. An example is if you wanted the
“Delta T” or “Flame Signal” to appear on the Home Screen, you can change the parameters.
Navigation
•Home Screen, press “I” Info/Install button
•Scroll to highlight “Display Setup”, press OK
•Highlight the line you would like to change,(example ”Line 2 Operating Temp”), press OK
•Scroll to highlight a new parameter, press OK
Change from Fahrenheit to Celsius
Navigation
•Home screen, press “I” Info/Install button
•Use the arrow buttons to highlight “Advanced Set Up”, Press OK
•Use the Down arrow button to highlight “System Config”, Press OK
•Scroll to highlight “System Config” again, then Press OK
•Screen should be highlighted for “Temperature Units”. If not, use Up/Down buttons to
highlight and press OK.
•Use Down arrow button to select “Celsius”, press OK
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NEOTHERM Boilers and Water Heaters
Single Boiler Set Up
Note: When installing a single boiler, the system sensor supplied with the boiler is not needed. The
system sensor will be needed when cascading multiple boilers together.
The Outdoor sensor supplied with the boiler must be installed. If not, the alarm light on the SOLA
control will be on and the alarm contacts will close.
Single Boiler CH Set Point
Navigation
•Home screen Press “I” Info/Install
•“Quick Start” should be highlighted, press OK.
•CH Setpoint should be highlighted, press OK.
•Using the arrows and OK button, adjust the set point. (see the bottom of page 5).
After pressing the round OK button to confirm a set point, the display will go back to the “Quick
Start” screen. You can now select and adjust other parameters from this screen. The screen will time
out after 8 minutes of no activity, and return back to the Home Screen.
Single boiler DHW Set Point
Navigation
•Home screen, Press “I” Info/Install
•“Quick Start” should be highlighted, press OK
•Use the Down arrow button to Highlight “DHW set point”, press OK.
•Using the arrow and OK button, adjust the set point. (see the bottom of page 5).
•Press OK
Single boiler Outdoor reset
Note: The Outdoor reset is Enabled from the factory. (No further steps needed).
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LAARS Heating Systems
Single Boiler Set Up, continued
Low Water Temp
Navigation
•Starting at the “Quick Start” screen, use the Down arrow button to Highlight “Low Water
Temp”
•Press OK
•Using the arrows and OK button, adjust the set point. (see the bottom of page 5).
Max Outdoor Temp
Navigation
•Starting at the “Quick Start” screen, use the Down arrow button to Highlight “ Max
Outdoor Temp”
•Press OK and adjust the set point. (If needed, see the bottom of page 5).
Min Outdoor Temp
Navigation
•Starting at the “Quick Start” screen, use the Down arrow button to Highlight “ Min Outdoor
Temp”
•Press OK and adjust the set point. (If needed, see the bottom of page 5).
Warm Weather Shut Down
Navigation
•Home Screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•Scroll to CH Configure, press OK
•Scroll to “Warm Weather Shutdown”, press OK
•Scroll to highlight “Warm Weather Shutdown Setpoint”, press OK
•Adjust setpoint, press OK. (If needed, see bottom of page 5)
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NEOTHERM Boilers and Water Heaters
Cascading multiple boilers
You can cascade up to eight NeoTherm boilers together. One boiler becomes the Master and
the other boilers become the Slaves.
Note: The system sensor and outdoor sensor will need to be wired to the Master boiler only.
The input from these sensors is used by the Master control to control the modulation rate of all
of the operating boilers it is connected to. If the Outdoor sensor is not used, the alarm light on
the SOLA control will be on, and the alarm contacts will close.
Lead Lag Set Point
Navigation
•Home screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•Scroll down to highlight “Lead Lag Configure”, press OK
•“Lead Lag Master Configure” is highlighted, press OK
•Scroll down to “Setpoint”, press OK
•Adjust the setpoint, press OK (see bottom of page 5)
Lead Lag Outdoor Reset
Navigation
•Home screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•Scroll down to highlight “Lead Lag Configure”, press OK
•Scroll Down to highlight “Lead Lag Outdoor Reset”, press OK
Note: The Outdoor Reset is already Enabled. You may choose to adjust the other set points
•Use the Down button to highlight each parameter you wish to change
•Press OK, change the desired set point, press OK.
•Use the Down button to choose your next set point, make adjustments, press OK
Warm Weather Shut Down
Navigation
•Home screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•CH Configure, Press OK
•Use the Down button to highlight “Warm Weather Shutdown”, press OK
•Highlight Warm Weather Shutdown Setpoint”, press OK
•Adjust the set point, press OK
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LAARS Heating Systems
Cascading multiple boilers, continued
DHW set point using Lead Lag (Master Boiler)
Navigation
•Home screen, press “I” Info/Install button
•Scroll to highlight “Advanced Setup”, press OK
•Highlight “DHW Configure”, press OK
•DHW setpoint will be highlighted, press OK
•Adjust setpoint, Press OK
Enable the Master control function
The Master control should be enabled from the factory. Check to confirm this function is enabled.
Navigation
•Home screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•Scroll to highlight “Lead Lag Configuration”, press OK
•“Lead Lag Master Configure” will be highlighted, press OK
•“Master enable” should be highlighted, press OK
•Confirm that this function is enabled. If not highlight “Enable”, then press OK
Enable the Slave function on the Master control
When cascading boilers, the Slave function must be turned on. The is done on all of the controls,
including the Master control.
Navigation
•Home screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•Scroll down to highlight “Lead Lag Configure”, press OK
•Use the Down button to highlight “Lead Lag Slave Configure”, press OK.
•Press OK to “Enable” the Slave function
•Use the Down button to highlight “Enable via SOLA master”,press OK
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NEOTHERM Boilers and Water Heaters
Cascading multiple boilers, continued
Boiler Name
You can give each boiler a different name, but it is not necessary to change the name of the boilers to
operate in cascade mode.
Example: NeoTherm 1, NeoTherm 2, NeoTherm 3, etc.
Navigation
•Home screen, Press “I” Info/Install button, press OK
•Use arrow buttons to highlight “Advanced Setup”, then press OK.
•Use arrow buttons to highlight “System Config”, then press OK.
•“System ID & Access” will be highlighted. Press OK.
•“Boiler name” will be highlighted. Press OK.
•The screen will now prompt you to Log in. (Password LNT in lower case).
•Press OK and Log in. (See the top of page 5 for instructions).
•With “Boiler name” highlighted again, press OK to advance to the boiler name keypad.
•Using the same steps to log in, type in a boiler name. Then press OK.
Complete the steps above on all of the boilers.
Adjust the Base Load Value on the Master boiler.
Navigation
•Home screen, press “I” Info/Install button
•Scroll to “Advanced Set Up”, press OK
•Scroll to highlight “Lead Lag Configuration”, press OK
•“Lead Lag Master Configure” will be highlighted, press OK
•Scroll down to highlight “Base Load Common Rate”, press OK
•Adjust the rate to the number of boilers in the system (shown
in the chart to the right)
•Press OK
Number of
Boilers
Base load
value
1 65%
2 65%
3 50%
4 35%
5 35%
6 35%
7 35%
835%
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LAARS Heating Systems
Cascading multiple boilers, continued
Slave Boiler Set Up
Modbus Address
All of the boilers will each need their own Modbus address. On boilers two through eight you will
need to change the “MB1 Modbus Address” and the “MB2 Modbus Address”.
Example: On the Master boiler leave the MB1 and MB2 address as 1. On boiler two the MB1 and
MB2 addresses will be 2. On boiler three the MB1 and MB2 addresses will be 3, etc..
Navigation
•Home screen, press “I Info/Install button, press OK.
•Highlight “Advanced Set Up”, press OK
•Highlight “System Configure”, press OK
•Choose “System ID & Access”, press OK.
•Scroll down to highlight “MB1 Modbus Address”, press OK
•Use the Up arrow buttons to change the number for boilers 2 through 8. Press OK
•Next, use the down arrow button to highlight “MB2 Modbus Address”, press OK
•Log in, the password is “LNT” in lower case.
•Change the MB2 address, then press OK
Note: It will take 5 seconds for the Modbus change to appear on the screen.
Disable the Master function and enable the Slave function on each of the
slave controls.
Navigation
•Home screen, press “I” Info/Install button, press OK
•Highlight “Advanced Set Up”, press OK
•Use the Down button to highlight “Lead Lag Configure”, press OK
•“Lead Lag Master Configure” is highlighted, press OK
•“Master enabled” is highlighted, press OK
•Use the Up button to highlight Disable, press OK
Next, press the Back button to get back to the Lead Lag Configure screen
•Use the Down button to highlight “Lead Lag Slave Configure”
•Press OK to Enable the Slave function
•Use the Down button to highlight “Enable via SOLA master, press OK
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NEOTHERM Boilers and Water Heaters
Cascading multiple boilers, continued
Combustion Set Up
High Fire
Navigation
•Home screen
•Press “I” Info/Install button
•Scroll to highlight “Test”, press OK
•“Forced Rate” will be highlighted, press OK
•If the screen prompts you to Log in, press OK and Log in
Note: The boiler must be running to start High or Low fire test
•“Set High Fire” will be highlighted, press OK
•Scroll down to “Start Test” press OK
You will now have five minutes to complete the High fire CO2 adjustments
Low Fire
Navigation
•From the “Forced Rate” screen, highlight the option for “Set Low Fire”, press OK
•Scroll down to “Start Test”, press OK. Complete Low Fire CO2 adjustments.
CO2 Adjustment Range
Gas Type High Fire CO2 Low Fire CO2
Natural 9.0 to 9.8 % 0.5% lower than High Fire
Propane 10.0 to 10.8 % 0.5% lower than High Fire
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Notes:
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Product Support
Rochester, NH 800-900-9276
Ontario, Canada 905-238-0100

Notes:
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Product Support
Rochester, NH 800-900-9276
Ontario, Canada 905-238-0100

800.900.9276 • Fax [phone] (Customer Service, Service Advisors)
20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax [phone] (Applications Engineering)
1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8 • 905.238.0100 • Fax [phone]
www.Laars.com Printed in U.S.A. © Laars Heating Systems 1303 Document 1278
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Product Support
Rochester, NH 800-900-9276
Ontario, Canada 905-238-0100