Laars NEOTHERM NTH Series Manuel utilisateur

Start Up Guide Document 1370

Start Up Guide for

NEOTHERM®

with

Touchscreen Display

DOOR

HANDLE

(PULL TO OPEN)

(RELEASE BOTH

LATCHES TO OPEN)

DOOR

LATCHES

2 SCREWS

ON / OFF

SWITCH

THE TOUCH SCREEN

ON OUTDOOR UNIT

IS LOCATED BEHIND

FRONT PANEL

Outdoor

Indoor

Modulating Boilers and

Volume Water Heaters

Indoor models NTH & NTV

Sizes 285 – 850 MBTU/h

Outdoor models NTH & NTV

Sizes 150 – 850 MBTU/h

Page 2

LAARS Heating Systems

Table Of Contents

Single Boiler Set Up -------------------------------------------------------------------------3-4

Setting Up Outdoor Reset --------------------------------------------------------------------5

Warm Weather Shutdown -------------------------------------------------------------------6

Domestic Hot Water Configuration --------------------------------------------------------6

Lead/Lag Set Up ------------------------------------------------------------------------------7-8

Lead/Lag Master Configuration ---------------------------------------------------------9-11

Lead/Lag Slave Configuration ----------------------------------------------------------11-14

Setting The Date And Time -----------------------------------------------------------------15

Combustion Setup Procedures --------------------------------------------------------16-17

Setting up 4-20 MA Set Point --------------------------------------------------------------18

Page 3

NEOTHERM Boilers and Water Heaters

Single Boiler Setup

1. Starting from the Home Screen press the

controller icon.

2. From the Status Summary Screen, press the

“Configure” button.

Adjusting Central Heat Set point for CH demand

3. Press, “CH-Central Heat Configuration”

to adjust the set point.

Page 4

LAARS Heating Systems

Single Boiler Setup Continue

4. Confirm that “CH enable” reads Enabled as

shown in this example.

5. Press the right had arrow on the screen to

get to the set point screen.

8. Press the back arrow button on the top right corner of

the screen to return to the “Configuration Menu”.

7. A smaller box will appear. Use the Up/Down arrows on the

screen to adjust the desired set point. Then Press “OK”.

6. Press on the “Setpoint” box to adjust the temperature.

Page 5

NEOTHERM Boilers and Water Heaters

Setting Up Outdoor Reset

Outdoor Reset is Strongly Recommended. You may skip this step if you are not using this function

1. From the Configuration Menu,

Press “Outdoor Reset Configuration”

2. Confirm that Central Heat is “Enabled”.

3. Next, adjust the Maximum Outdoor Temperature,

Minimum Outdoor Temperature and Low Water

Temperature by pressing each set point box.

4. After configuring the outdoor reset, press the

back arrow on the top right corner of the screen

to return back to the Configuration Menu.

Use the Up/Down arrows

on the screen to adjust

the temperature.

Press “OK” after each

adjustment is made.

Page 6

LAARS Heating Systems

Warm Weather Shutdown

You may skip this step if you are not using Outdoor Reset

1. From the Configuration Menu, choose

“Warm Weather Shutdown Configuration”.

2. Press on the set point box and adjust the shutdown.

3. After adjusting the shutdown set point, then press “OK”.

4. Press the back arrow on the top right corner of the screen

to return to the Configuration Menu.

Domestic Hot Water Configuration

Skip this step if you are not using Domestic Hot Water

2. Make adjustments from the DHW set point screen.

3. After adjusting the DHW set point, press “OK’.

1. From the Configuration Menu,

press “DHW Domestic Hot Water Configuration”

Page 7

NEOTHERM Boilers and Water Heaters

Lead/Lag Set Up

You can cascade up to eight NeoTherm boilers together. One boiler becomes the Lead or Master control

and the other boilers become the Lag or Slaves controls.

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. See the manual for sensor and cascade wiring.

When a boiler is operating as part of a Lead/Lag system, it does not use the normal “CH set point” – it

uses the “Lead/Lag CH set point” on the Master control.

It is STRONGLY recommended to start each boiler to complete combustion set up and perform all safety

checks before setting up Lead/Lag cascade. See page 16-17 for combustion set up.

1. To log in, start from the Home Screen. Press the

controller icon.

Note: Some parameters will require a log in.

2. Press the pad lock symbol on the top right

side of the screen.

3. The key pad will appear.

Next, type in the password “LNT”, then press “OK”.

lnt

The log in will need to be completed on each boiler.

Page 8

LAARS Heating Systems

Lead/Lag Set Up Continues

1. Starting from the Home Screen press the

controller icon.

2. From the Status Summary Screen, press the

“Configure” button.

3. Use the slide bar on the right side of the screen to scroll

down to “Lead Lag Master Configuration”.

Press, “Lead Lag Master Configuration”

Setting up the Lead/Lag Master Control

4. Confirm the Master control is “Enabled”.

If it is not enabled, press the box for “Disabled”.

Slide bar

Page 9

NEOTHERM Boilers and Water Heaters

Setting up the Lead/Lag Master Control continues

5. A smaller box will appear on the screen. Choose the box for

“Enable”, then press “OK”.

6. With the Master Control now Enabled , press the setting

box labeled “CH setpoint”. Here you can adjust the

desired Lead/ Lag system set point.

7. Press “Advanced Settings”

8. From this screen, use the Left or Right arrows to scroll

to other screens. Make adjustments if needed.

9. If you are using Outdoor Reset for Lead/ Lag, adjust the

Maximum Outdoor Temp, Minimum Outdoor Temp and

Low Water Temp by touching each set point line.

The set point screen will appear. Make the adjustment,

then press OK.

When finished, press the arrow to advance to the

“Warm Weather Shutdown” screen.

10. From the “Warm Weather Shutdown “ screen, adjust the

setpoint.

When finished, press the arrow to advance to the

“Rate Allocation” screen.

Page 10

LAARS Heating Systems

Number of

Boilers

Base load

value

1 NA

2 65%

3 50%

4 35%

5 35%

6 35%

7 35%

8 35%

11. Adjust the “Base Load Common” value to the number of boilers

in the cascade system. See chart for values.

Note: In the Lead/Lag Slave Sub-Menu, Identify each control (including the Lead/Lag Master) as a slave by

turning on “Slave Enable.”

12. From the Status Summary Screen, press the “Configure”

button.

13. Scroll down and press “Lead Lag Slave Configuration”.

Lead/Lag Master Control continues

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