Laars NEOTHERM NTH Manuals

Manuals and User Guides for Laars NEOTHERM NTH. We have 6 Laars NEOTHERM NTH manuals available for free PDF download: Service Manual, Installation And Operation Instructions Manual, User Information

Laars NEOTHERM NTH Installation And Operation Instructions Manual (104 pages)

Modulating Boilers and Volume Water Heaters

Brand: Laars | Category: Boiler | Size: 8 MB

Table of Contents
2
Section 1

5
General Information

5
- A Introduction
  5
- B Warranty
  5
- C Model Identification
  5
- D Safety Notes
  6
- E Model Overview
  8
- F Dimensions, Indoor Models
  14
- G Dimensions, Outdoor Models
  16
- H the Installation Kit (Installation Parts Box)
  18
Section 2

20
Locating the Unit

20
- A General Information
  20
- B Locating Appliance for Correct Vent Distance from Outside Wall or Roof Termination
  20
Section 3

21
Venting and Combustion Air

21
- A General Venting
  21
- B Combustion Air
  21
- C Venting
  24
- D Common Venting
  26
- E Locating Vent and Combustion Air Terminals
  26
- F Common Vent Test
  30
Section 4

31
Gas Supply and Piping

31
Section 5

32
Pump Requirements

32
- B Water Heater Flow and Head Requirements - Heater
  32
Water Connections

34
Section 6

34
Boiler

34
- Boiler Water Piping
  34
- Boiler Cold Water Make-Up
  34
- Condensate Drain
  35
- Freeze Protection
  35
- Boiler Suggested Piping Schematics
  35
- Recognized Chemicals
  35
B Water Heater

42
- Heater Water Quality
  42
- Piping Requirements
  42
- Cold Water Make-Up
  42
- Condensate Drain
  42
- Freeze Protection
  42
- Heater Suggested Piping Schematics
  42
- Heater Suggested Pumps
  43
Section 7

45
Installation and Wiring

45
Section 8

53
Using the Touch Screen

53
G the Configuration Menu

58
- System Identification & Access
  59
- Heat Configuration
  59
- G.2.A CH - Central Heat Configuration
  59
- G.2.B Setting up 4-20 Ma Setpoint
  59
- Outdoor Reset Configuration
  60
- DHW - Domestic Hot Water Config
  60
- Warm Weather Shutdown Config
  60
- Demand Priority Configuration
  61
- Modulation Configuration
  61
- Pump Connections
  61
- Statistics Configuration
  62
- High Limits
  62
- Stack Limits
  62
- Anti-Condensation Configuration
  62
- Frost Protection
  62
- System Configuration
  62
- Fan Configuration
  63
- Sensor Configuration
  63
- Lead Lag Follower Configuration
  64
- Lead Lag Leader Configuration
  66
- G.18.A about Lead Lag Operation
  69
- H Configure for a
  71
- Building Automation System
  71
- I Combustion Setup
  72
- J Adjusting CO 2
  74
Section 9

77
FIRST START up and ADJUSTMENT 9.A Filling the Boiler System

77
- B First Operation
  78
- C Shutting down the Unit
  78
- D Restarting the Unit
  78
Maintenance

79
Section 10

79
Section 11

84
Troubleshooting

84
Section 12

96
Replacement Parts

96
- General Information
  96
- B Parts List
  96
- Parts Illustrations
  98

Laars NEOTHERM NTH Service Manual (118 pages)

Modulating Boiler Sizes 399-850 MBTU/h, Water Heater Sizes 399-850 MBTU/h

Brand: Laars | Category: Boiler | Size: 14 MB

Laars NEOTHERM NTH Installation And Operation Instructions Manual (92 pages)

Modulating Boiler and Water Heater

Brand: Laars | Category: Boiler | Size: 12 MB

Table of Contents
2
Section 1

5
General Information

5
- Introduction
  5
- Model Identification
  5
- Appliance Overview
  6
- Warranty
  10
- Unpacking
  10
- Dimensions
  10
Section 2

12
Locating the Appliance

12
- General Information
  12
- Locating Appliance for Correct Vent Distance from Outside Wall or Roof Termination
  12
Section 3

13
Venting and Combustion Air

13
- Combustion Air
  13
- Venting
  14
- Locating Vent & Combustion Air Terminals
  16
Section 4

19
- Common Vent Test
  19
- Gas Supply and Piping
  19
Gas Supply and Piping

19
Section 5

20
Pump Requirements

20
- Neotherm Boiler Flow and Head Requirements
  20
- Neotherm Water Heater Flow and Head Requirements
  20
Section 6A

21
Water Connections - NTH Boiler

21
- NTH System Piping: Hot Supply Connections
  21
- NTH Cold Water Make-Up
  21
- Condensate Drain
  22
- Freeze Protection
  22
- NTH Suggested Piping Schematics
  22
- Recognized Chemicals
  22
- A.3 Condensate Drain
  22
Section 6B

30
Water Connections - NTV Water Heater

30
- NTV Water Quality
  30
- Piping Requirements
  30
- B.1 NTV Water Quality
  30
- Cold Water Make-Up
  31
- Condensate Drain
  31
- Freeze Protection
  31
- NTV Suggested Piping Schematics
  31
- NTV Suggested Pumps
  31
The User Interface

34
- About the User Interface
  34
Section 7-

35
Section 8A

39
Quick Start Menu

39
Section 8B

40
Basic Installation and Wiring

40
- Installation Warnings
  40
- B.1 Installation Warnings
  40
- Main Power Connections
  41
- Pump Connections and Operation
  41
Section 8C

42
Detailed Setup Instructions and Diagrams

42
Section 9

54
First Start-Up and Adjustment Instructions

54
- Filling the Boiler System
  54
- First Operation
  54
- Manifold Pressure
  55
- Shutting down the Neotherm Unit
  57
- Restarting the Neotherm Unit
  57
Section 10

58
Maintenance

58
Section 11

62
Operating Details and Troubleshooting

62
- Normal Startup and Initialization
  62
- Sequence of Operation
  62
- Modulation Control
  62
- Pump Control
  62
- Anti-Short-Cycle
  63
- Temperature Sensors
  63
- Diagnostics
  63
- Error Codes
  63
Section 12

64
Replacement Parts 13.1 General Information

64
- Parts List
  64
Appendices

75
Appendix A - Software Control Functions

75
Appendix B - Error Messages

80

Laars NEOTHERM NTH Installation And Operation Instructions Manual (64 pages)

Modulating Boiler and Water Heater

Brand: Laars | Category: Water Heater | Size: 7 MB

Table of Contents
2
Section 1

3
Section 1.

4
General Information

4
- Introduction
  4
- Model Identification
  4
- Appliance Overview
  4
- Warranty
  9
- Unpacking
  9
- Dimensions
  9
Section 2.

11
Locating the Appliance

11
- Locating Appliance for Correct Vent Distance from Outside Wall or Roof Termination
  11
Section 3.

12
Venting and Combustion Air

12
- Combustion Air
  12
- Combustion Air from Room
  12
- Ducted Combustion Air
  12
- Venting
  13
- Venting Requirements Unique to Canada
  14
- Locating Vent & Combustion Air Terminals
  14
- Side Wall Vent Terminal
  14
- Side Wall Combustion Air Terminal
  15
- Vertical Vent Terminal
  15
- Vertical Combustion Air Terminal
  15
- Installations in the Commonwealth of Massachusetts
  15
- Common Vent Test
  17
Section 4.

18
Gas Supply and Piping

18
Section 5.

19
Pump Requirements

19
- Neotherm Boiler Flow and Head Requirements
  19
- Neotherm Water Heater Flow and Head Requirements
  19
Section 6A

20
Water Connections - NTH Boiler

20
Section 6B

29
Water Connections - NTV Water Heater

29
- NTV Water Quality
  29
- Piping Requirements
  29
  - B.1 NTV Water Quality
    29
  - B.2 Piping Requirements
    29
- Cold Water Make-Up
  30
- Freeze Protection
  30
- B.4 Freeze Protection
  30
- NTV Suggested Piping Schematics
  30
- NTV Suggested Pumps
  30
Section 7.

32
Electrical Connections

32
- Main Power
  32
- Pump Connections
  33
- Vac Transformer with Integral Circuit Breaker
  33
- Hydronic Call for Heat
  33
  - Outdoor Air Temperature Sensor
    33
- Domestic Hot Water Connection
  33
- System Sensor
  33
  - (Lead Lag/Cascading Operation Only)
    33
- External Control Connections
  33
- Optional Field Connections
  33
- Lead Lag/ Cascading Wiring Connections
  33
- Wiring Diagrams
  35
Neotherm Control Setup and Operation

37
Section 8.

37
- Display Navigation
  37
- Ignition Control - Sequence of Events
  37
- Modulation Control
  38
- Pump Control
  38
- Anti-Short Cycle (ASC)
  38
  - High Limit
    38
- Outlet Water Temperature
  38
- Inlet Water Temperature
  38
- Heat Exchanger Temperature Rise
  38
- Stack Temperature
  38
- Domestic Hot Water Temperature
  38
- Lead Lag/Cascading
  38
- Lead Lag Setpoint
  39
- Lead Lag Master/Slave Selection
  39
- Lead Lag Address
  39
- Lead Lag Hysteresis
  39
- Lead Lag Base Load Setting
  39
- Boiler Pump Interrupt
  39
Section 9.

40
Modes of Operation

40
Operating Instructions

43
- Filling the Boiler System
  43
- Operating the Burner and Set up
  43
- Burner Operation
  43
- Boiler Setup and Adjustment
  44
- Shutting down Neotherm
  44
- To Restart Neotherm
  44
Maintenance

46
- System Maintenance
  46
- Appliance Maintenance and Component Description
  46
- Burner
  46
- Modulating Gas Valve / Venturi
  46
- Appliance Control
  46
- Ignitor Assembly
  47
- Flame Sensor
  47
- Transformer with Integral Circuit Breaker
  48
- Blower
  48
- Heat Exchanger Coils
  48
- Gas Pressure Switches (Optional)
  49
- Gas Conversion
  49
Trouble Shooting

49
- Sequence of Operation
  49
- Short Cycling
  49
- Error Codes
  49
Replacement Parts 13.1 General Information

52
- Parts List
  52

Laars NEOTHERM NTH Installation And Operation Instructions Manual (44 pages)

Modulating Boiler Sizes 080–500 MBTU/h

Brand: Laars | Category: Boiler | Size: 4 MB

Section 1

2
- Table of Contents
  2
- Appliance Overview
  3
General Information

3
- Introduction
  3
- Model Identification
  3
- Warranty
  3
- Dimensions
  4
- Locating the Appliance
  4
- Unpacking
  4
Section 2.

8
Venting and Combustion Air

8
Section 3.

13
- Common Vent Test
  13
Gas Supply and Piping

13
Section 4.

14
- Cold Water Make-Up
  14
Water Connections

14
Section 5.

22
- Control Features
  22
- Direct Hot Water Control Point Adjustment
  22
Electrical Connections

22
- Main Power
  22
- Setup Mode
  22
- Temperature Control Point Adjustment
  22
- User Mode
  22
- Adjusting High Outdoor Temperature Setpoint
  23
- Adjusting Low Boiler Temperature Setpoint
  23
- Adjusting Low Outdoor Temperature Setpoint
  23
- Adjusting the Outdoor Reset on or off
  23
- Adjusting the Temperature Display Units in °F or °C
  23
- Anti Short Cycle Time
  23
- DHW Limit Setting
  23
- Diagnostic Mode
  23
- High Limit Setting
  23
- Outdoor Reset Operation
  24
- Pump Connections
  24
- Temperature Control
  24
- Temperature Control - Indirect Tank
  24
- External Control Connections
  25
Section 6.

27
- Filling the Boiler System
  27
Operating Instructions

27
- Operating the Burner and Set up
  27
- Wiring Diagram
  27
- Burner Operation
  28
- Boiler Setpoint and Adjustment
  29
- Shutting down the Neotherm
  29
- To Restart the Neotherm
  29
Section 7.

30
Maintenance

30
- System Maintenance
  30
- Appliance Control
  31
- Appliance Maintenance and Component Description
  31
- Burner
  31
- Flame Sensor
  31
- Ignitor Assembly
  31
- Modulating Gas Valve / Venturi
  31
- Blower
  32
- Heat Exchanger Coils
  32
- Transformers
  32
Section 8.

33
- Error Codes
  33
- Gas Pressure Switches (Optional)
  33
- Sequence of Operation
  33
- Short Cycling
  33
Trouble Shooting

33
Section 9.

35
- General Information
  35
Replacement Parts

35
- Parts List
  36

Laars NEOTHERM NTH User Information (14 pages)

Modulating Boiler Model NTH Sizes 080-850 MBTU/h Water Heater Model NTV Sizes 150-850 MBTU/h

Brand: Laars | Category: Heating System | Size: 1 MB

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Laars NEOTHERM NTH Manuals

Laars NEOTHERM NTH Installation And Operation Instructions Manual (104 pages)

Table of Contents

Section 1

General Information

Section 2

Locating the Unit

Section 3

Venting and Combustion Air

Section 4

Gas Supply and Piping

Section 5

Pump Requirements

Water Connections

Section 6

Boiler

B Water Heater

Section 7

Installation and Wiring

Section 8

Using the Touch Screen

G the Configuration Menu

Section 9

FIRST START up and ADJUSTMENT 9.A Filling the Boiler System

Maintenance

Section 10

Section 11

Troubleshooting

Section 12

Replacement Parts

Laars NEOTHERM NTH Service Manual (118 pages)

Table of Contents

Section a - Troubleshooting - Start here

Section B - Troubleshooting Procedures

Section C - Possible Combustion Problems

Section D - Using the Neotherm Control System

Appendix Sect. Title Page App1 Error Codes

Laars NEOTHERM NTH Installation And Operation Instructions Manual (92 pages)

Table of Contents

Section 1

General Information

Section 2

Locating the Appliance

Section 3

Venting and Combustion Air

Section 4

Gas Supply and Piping

Section 5

Pump Requirements

Section 6A

Water Connections - NTH Boiler

Section 6B

Water Connections - NTV Water Heater

The User Interface

Section 7-

Section 8A

Quick Start Menu

Section 8B

Basic Installation and Wiring

Section 8C

Detailed Setup Instructions and Diagrams

Section 9

First Start-Up and Adjustment Instructions

Section 10

Maintenance

Section 11

Operating Details and Troubleshooting

Section 12

Replacement Parts 13.1 General Information

Appendices

Appendix A - Software Control Functions

Appendix B - Error Messages

Laars NEOTHERM NTH Installation And Operation Instructions Manual (64 pages)

Table of Contents

Section 1

Section 1.

General Information

Section 2.

Locating the Appliance

Section 3.