Laars MagnaTherm MGH2500 Manuals

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Laars MagnaTherm MGH2500 Installation And Operation Instructions Manual (144 pages)

Boilers and water heaters

Brand: Laars | Category: Boiler | Size: 10 MB

Table of Contents
2
SECTION 1 General Information

5
- A Introduction
  5
- B Model Identification
  5
- C Warranty
  5
- D Safety Notes
  6
- E Unit Overview
  8
- F Gas Train Components
  9
- G Venting Dimensions & Sizing
  10
- H Dimensions
  10
- I Unpacking and the Install Kit
  12
- J Locating the Unit
  12
- K Clearances
  13
SECTION 2 Venting and Combustion Air

14
- A General Venting Information
  14
- B Vent and Air Pipe Material
  14
- Venting Reqs Unique to Canada
  14
- B.1.A Flue Gas Sampling Port
  14
- B.1.B Exhaust Vent Terminal
  15
- C Vent and Air Pipe Sizing
  16
- Category Lv Vent Sizes
  17
- Category II Vent Sizes
  17
- Common Venting
  17
- Common Vent Test
  18
- Combustion Air
  19
- C.5.A Combustion Air from Room
  19
- C.5.B Ducted Combustion Air
  20
- D Locating the Vent
  20
- Locating the Vent and Combustion Air Terminals
  20
- Side-Wall Vent Terminal
  20
- Side-Wall Combustion Air Terminal
  22
- Vertical Vent Terminal
  22
- Vertical Combustion Air Terminal
  22
- E Outdoor Installation
  23
- F Installations in the Commonwealth of Massachusetts
  23
SECTION 3 Gas Supply and Piping

24
- A Gas Supply and Piping
  24
- B Gas Pipe Sizing
  25
SECTION 4 Water Flow & Headloss Data

26
SECTION 5 Piping

28
- Boiler Water Piping
  28
- Boiler Water Connections
  28
- Cold Water Make-Up
  28
- Freeze Protection
  28
- Suggested Boiler Piping Schematics
  29
  - Water Heaters
    33
- Water Quality
  33
- Heater Water Connections
  33
- Cold Water Make-Up
  33
- Freeze Protection
  34
- Suggested Piping Schematics
  34
SECTION 6 Condensate Drain Trap

36
- Condensate Trap Instructions
  37
SECTION 7 Electrical Connections

38
- Installation Warnings
  38
- Main Power Connections
  39
- Main Power Data
  40
- Control Panel Layout
  40
- Field Connections
  40
- Power
  40
- Dry Contacts
  40
- Temperature Sensors
  42
- Heat Demands
  43
- Analog in and Analog out
  43
  - Dry Contacts. Run & Alarm
    43
- RS 485, Cascade
  44
- Rs485 Bms
  44
- Modbus to Bacnet Memory Map
  45
- Wiring Diagrams
  48
- High Voltage Wiring Diagrams
  52
  - Ladder Diagrams
    59
SECTION 8 Control Operation

66
The Home Screen

66
- Home Screen Active Icons
  66
- Keypad Operations
  67
Login to Lock / Unlock the Display

68
Quick Start

69
D Configuration

73
- CH (Central Heat)
  74
- D.1.A CH1 (Central Heat, One)
  74
- D.1.A.3 PID Parameters
  75
- D.1.B CH2 (Central Heat, Two)
  75
- DHW (Domestic Hot Water)
  75
- Outdoor Reset
  76
Cascade (Lead / Lag)

77
- D.4.A Cascade CH (Central Heat)
  82
- D.4.A.1 Cascade CH Lead Settings
  83
- D.4.A.1.A Cascade Base / Drop Load
  84
- D.4.B Cascade DHW (Dom Hot Water)
  84
- D.4.C Cascade Rotation
  85
- D.4.C.1 Cascade Rotation Setup
  85
- D.4.D Cascade Redundancy
  86
- Hybrid
  86
- Pumps
  87
- D.6.A DHW Recirculation
  88
- D.6.B VARI-PRIME
  88
- Manual Firing Rate
  89
- Temp Limits
  89
- D.8.A Delta T Parameters
  90
- D.8.B Flue Limitation Parameters
  90
- D.8.C Outlet Limitation Parameters
  90
- External
  91
- D.9.A External - Remote Set Point
  92
- D.9.B External Firing Rate
  93
- Time & Date
  93
- Miscellaneous Features
  94
- D.11.A Demand Priority
  95
- D.11.B Anti-Short Cycle
  95
- D.11.C Warm Weather
  96
- D.11.D COM Port, BMS
  97
- D.11.E Temperature Conversion
  98
- D.11.F Anti-Frost
  98
- D.11.G Trim (O 2 Trim Enable / Disable)
  99
- Login
  99
E Service Screens

100
- Burner
  100
- Digital I/O ( Input / Output )
  101
- Analog I/O
  102
- Screen Settings Timeout
  103
- History
  103
- Restart Touchscreen & Recalibrate
  103
- Factory Reset
  104
- HMI Model OEM Only
  104
- BIC Model OEM Only
  104
- Both Model. OEM Only
  104
- About about the Firmware Version
  104
- O2 (Trim Set Point)
  104
- Lmv
  104
Messages and USB

105
- Messages
  105
- USB Functionality
  105
Active Demands

106
SECTION 9 Parameter Tables

107
SECTION 10 Initial Startup Instructions

113
- Filling the Boiler System
  113
- Initial Operation
  114
- Initial Burner Operation
  114
- Combustion Setup Procedure Hi Fire, Low Fire
  115
- Shutting down the Unit
  117
- Restarting the Unit
  117
- Controllers
  117
- Transmitters
  118
SECTION 11 Maintenance

119
- System Maintenance
  119
- Maintenance Notes
  119
- Burner
  119
- Gas Train Components
  119
- Controller
  120
- Spark Ignition Electrodes
  120
- Flame Sensor
  120
- Blower Model 1600
  120
- Blower Model 2000-4000
  120
- Heat Exchanger Tubes
  121
- Gas Pressure Switches
  121
- Pressure Transmitters
  122
- Oxygen Sensor
  122
- High Temperature Limits (Optional)
  122
SECTION 12 Troubleshooting

123
- Lockouts and Errors
  123
- LMV Errors
  125
SECTION 13 Replacement Parts

130
- General Information
  130
- Component Illustrations, Parts Lists, and Part Numbers
  130

Laars MagnaTherm MGH2500 Installation And Operation Instructions Manual (132 pages)

Brand: Laars | Category: Boiler | Size: 28 MB

Table of Contents
2
SECTION 1 General Information
5
A Introduction
5
B Model Identification
5
C Warranty
5
D Safety Notes
6
E Unit Overview
8
F Gas Train Components
9
G Venting Dimensions & Sizing
10
H Dimensions
10
I Unpacking
12
J Locating the Unit
12
K Clearances
13
SECTION 2 Venting and Combustion Air
14
A General Venting Information
14
B Vent and Air Pipe Material
14
B.1.A Flue Gas Sampling Port
14
B.1.B Exhaust Vent Terminal
15
C Vent and Air Pipe Sizing
16
Category Lv Vent Sizes
17
Category II Vent Sizes
17
Common Venting
17
Common Vent Test
18
C.5 Combustion Air
19
Combustion Air
19
C.5.A Combustion Air from Room
19
C.5.B Ducted Combustion Air
20
D Locating the Vent
20
Locating the Vent and Combustion Air Terminals
20
Side-Wall Vent Terminal
20
Side-Wall Combustion Air Terminal
22
Vertical Vent Terminal
22
Vertical Combustion Air Terminal
22
E Outdoor Installation
23
Installations in the Commonwealth of Massachusetts
23
SECTION 3 Gas Supply and Piping
24
A Gas Supply and Piping
24
B Gas Pipe Sizing
25
SECTION 4 Water Flow and Headloss Data
26
A General Water Flow Information
26
B Boiler Water Flow & Headloss Data
26
C Water Heater Water Flow and Headloss Data
27
SECTION 5 Piping
28
Boiler Water Piping
28
Boiler Water Connections
28
Cold Water Make-Up
28
Freeze Protection
28
Suggested Boiler Piping Schematics
29
- Water Heaters
  33
Water Quality
33
Heater Water Connections
33
Cold Water Make-Up
33
B.4 Freeze Protection
34
Freeze Protection
34
Suggested Piping Schematics
34
SECTION 6 Condensate Drain Trap
36
SECTION 7 Electrical Connections
37
Installation Warnings
37
B Main Power Connections
38
Control Panel Layout
38
C Control Panel Layout
39
Field Connections
39
Power
39
Dry Contacts
39
D.3 Temperature Sensors
40
Temperature Sensors
40
Heat Demands
40
Analog in and Analog out
41
Dry Contacts. Run & Alarm
41
RS 485, Cascade
42
- Rs485 Bms
  42
- D.7 RS 485, Cascade
  42
Modbus to Bacnet Memory Map
43
- Wiring Diagrams
  46
High Voltage Wiring Diagrams
50
Ladder Diagrams
57
SECTION 8 Control Operation
64
Home Screen Active Icons
64
A.2 Keypad Operations
65
Keypad Operations
65
- B Login to Lock / Unlock the Display
  66
- C Quick Start
  67
Quick Start
68
C.2.A CH1
68
Ch2
68
Dhw/Dhw3
68
C.3 Outdoor Reset
69
Outdoor Reset
69
Warm Weather Shut down
69
Anti-Short Cycle
70
Time & Date
70
D Configuration
71
D.1 Ch
72
D.1.A CH1
72
D.1.A.1 Enable/Disable
72
D.1.A.2 Set Point
72
D.2
73
D.1.A.3 PID Parameters
73
D.1.B CH2-DHW1-DHW2
73
Dhw/Dhw3
73
D.3 Outdoor Reset
74
Outdoor Reset
74
D.4 Cascade
75
Cascade
75
D.4.A Cascade CH
76
D.4.A.1 Cascade CH Lead Settings
77
D.4.B Cascade DHW
78
D.4.C Rotation
78
D.4.D Redundancy
79
Hybrid
79
D.6 Pumps
80
Pumps
80
D.6.A DHW Recirculation
81
D.6.B VARI-PRIME
81
Manual Firing Rate
82
Temp Limits
82
D.8.A Delta T Parameters
83
D.8.B Flue Limitation Parameters
83
D.8.C Outlet Limitation Parameters
83
D.9 External
84
External
84
D.9.A External - Remote Set Point
85
D.9.B External Firing Rate
86
Time & Date
86
D.11 Miscellaneous Features
87
Miscellaneous Features
87
D.11.A Demand Priority
88
D.11.B Anti-Short Cycle
88
D.11.C Warm Weather
89
D.11.D COM Port, BMS
90
D.11.E Temperature Conversion
91
D.11.F Anti-Frost
91
D.12 Login
92
D.11.G Trim (Enable / Disable)
92
Login
92
E Service Screens
93
Burner
93
Digital I/O ( Input / Output )
94
E.3 Analog I/O
95
Analog I/O
95
Screen Settings Timeout
96
History
96
Restart Touchscreen & Recalibrate
97
Factory Reset
97
HMI Model OEM Only
97
Lmv
97
Messages and USB
98
Messages
98
USB Functionality
98
Active Demands
99
SECTION 9 Parameter Tables
100
SECTION 10 Initial Startup Instructions
106
Filling the Boiler System
106
Initial Operation
107
Initial Burner Operation
107
Combustion Setup Procedure
108
Shutting down the Unit
109
Restarting the Unit
109
Operation
110
SECTION 11 Maintenance
111
System Maintenance
111
Maintenance Notes
111
Burner
111
Modulating Gas Valve / Venturi
111
B.3 Controller
112
Controller
112
Spark Ignition Electrodes
112
Flame Sensor
112
Blower Model 1600
112
Blower Model 2000-4000
112
Heat Exchanger Tubes
113
Gas Pressure Switches
113
SECTION 12 Troubleshooting
114
SECTION 13 Replacement Parts
116
General Information
116
Component Illustrations, Parts Lists, and Part Numbers
116
Part Numbers
117

Laars MagnaTherm MGH2500 Installation And Operation Instructions For (124 pages)

Modulating Boiler/Water Heater, 1,600/1,999/2,499/3,000/3,500/4,000 MBTU/h

Brand: Laars | Category: Boiler | Size: 15 MB

Table of Contents
2
SECTION 1 General Information

5
- A Introduction
  5
- B Warranty
  5
- Model Identification
  5
- D Safety Notes
  6
- E Unit Overviews
  8
- Dimensions
  11
- G Unpacking and the Installation Kit
  12
SECTION 2 Locating the Unit

13
- A Locating the Unit
  13
- B Correct Vent Distance from Outside Wall or Roof Termination
  13
SECTION 3 Venting and Combustion Air

15
- A General Venting
  15
- B Combustion Air
  16
- C Combustion Air from Room
  16
- Ducted Combustion Air
  17
- D Venting
  17
- Common Venting
  18
- Venting Requirements Unique to Canada
  18
- E Locating the Vent & Comb Air Terminals
  19
- Side Wall Vent Terminal
  19
- Side Wall Combustion Air Terminal
  21
- Vertical Vent Terminal
  21
- Vertical Combustion Air Terminal
  21
- Installations in the Commonwealth of Massachusetts
  21
- Common Vent Test
  22
- G Outdoor Installation
  23
SECTION 4 Gas Supply and Piping 4.A Gas Supply and Piping

24
SECTION 5 Water Flow Requirements

26
- Boiler Flow and Head Requirements
  26
- Water Heater Flow and Head Requirements
  27
SECTION 6 Water Connection Boilers

28
- A System Piping
  28
- Hot Supply Connections
  28
- Cold Water Make-Up
  28
- Freeze Protection
  28
- D Condensate Drain Trap
  29
- E Suggested Piping Schematics
  29
SECTION 7 Water Connections

34
- A Water Quality
  34
- B Suggested Piping Schematics
  34
- C Piping Requirements
  34
- E Water Flow
  36
- D Condensate Drain Trap
  36
SECTION 8 Electrical Connections 8.A Installation Warnings

37
SECTION 9 Navigating the Touchscreen

62
- A the Touch Screen
  62
- B Using the Touch Screen
  62
- C Screen Menu Icons
  63
- D Verification Process for Safety Related Parameters
  64
- E Checking Individual Parameters
  65
- F Configuring Parameters
  66
- G Setting the Date and Time
  67
- H Configuration Menus
  68
- System Identification & Access
  68
- CH - Central Heat Configuration
  68
- Outdoor Reset Configuration
  68
- DHW - Domestic Hot Water Configuration
  69
- Warm Weather Shutdown Configuration
  69
- Demand Priority Configuration
  69
- Modulation Configuration
  69
- Pump Configuration
  70
- Statistics Configuration
  70
- High Limits
  70
- Stack Limits
  70
- Delta T Limits
  71
- Frost Protection
  71
- Burner Control Ignition
  71
- System Configuration
  71
- Sensor Configuration
  71
- Lag (Slave) Configuration
  72
- Lead (Master) Configuration
  75
- I Parameter Defaults and Ranges
  75
- J C Onfiguring for a Gateway Control for BAS
  79
- KVARI-PRIME Flow Control System
  80
- L Combustion Setup Procedure
  81
SECTION 10 Initial Startup Instructions

84
- A Filling the Boiler System
  84
- B Initial Operation
  85
- Initial Burner Operation
  85
- Combustion Setup Procedure
  85
- C Shutting down the Unit
  85
- D Restarting the Unit
  85
SECTION 11 Maintenance

86
- A System Maintenance
  86
- B Maintenance Notes
  86
- Burner
  86
- Modulating Gas Valve/ Venturi
  86
- Controller
  87
- Spark Ignition Electrodes
  87
- 11.2.5 Flame Sensor
  87
- Blower 1600
  87
- Blower 2000-4000
  87
- Heat Exchanger Tubes
  88
- Gas Pressure Switches
  88
- Battery Back up for Date and Time
  89
SECTION 12 Troubleshooting

90
- A Lockouts, Holds, and Alerts
  90
- Responding to a Lockout, Hold, or Alert
  90
- Iewing The Lockout And Alert Histories
  90
- B Troubleshooting Table
  92
- C Diagnostic Tests and Input/Output Indicators
  101
- D Lead Lag Diagnostics
  102
- E Statistics
  102
- F Analysis
  102
- G Control Snapshot
  103
- H Operating Sequence
  103
SECTION 13 Replacement Parts

104

Laars MagnaTherm MGH2500 Installation And Operation Instructions Manual (116 pages)

Modulating Boiler & Water Heater

Brand: Laars | Category: Boiler | Size: 10 MB

Table of Contents
2
Section 1 - GENERAL INFORMATION

5
- Introduction
  5
- Safety Notes
  5
- Model Nomenclature / Identification
  6
- Warranty
  6
- Unit Overviews ( All Sizes )
  7
  - Dimensions
    10
- Unpacking
  11
Section 2 - LOCATING the APPLIANCE

11
- Locating the Appliance
  11
- Correct Vent Distance from Outside Wall or Roof Termination
  11
Section 3 - VENTING and COMBUSTION AIR

12
- Combustion Air
  12
  - Combustion Air from Room
    12
  - Ducted Combustion Air
    13
- Venting
  13
  - Common Venting
    14
  - Venting Requirements Unique to Canada
    14
- Locating the Vent and Combustion Air Terminals
  15
- Common Vent Test
  19
- Outdoor Installation
  20
Section 4 - GAS SUPPLY and PIPING

20
- Gas Supply and Piping
  20
Section 5 - WATER FLOW REQUIREMENTS

22
- Magnatherm Boiler Flow and Head Requirements
  22
- Magnatherm Water Heater Flow and Head Requirements
  22
Section 6 - WATER CONNECTIONS, MGH

23
Section 7 - WATER CONNECTIONS, MGV

29
- MGV Water Quality
  29
- MGV Suggested Piping Schematics
  29
- MGV Piping Requirements
  29
- MGV Cold Water Make-Up
  30
- MGV Freeze Protection
  30
- MGV Water Flow
  31
- Condensate Drain Trap
  31
Section 8 - ELECTRICAL CONNECTIONS

32
- Installation Warnings
  32
- Main Power Connections
  32
- Pump Connections and Operation
  33
- Control Panel Layout
  34
- Wiring Diagrams
  36
- High Voltage Wiring Diagrams
  40
- Ladder Diagrams
  45
Section 9 - NAVIGATING the TOUCH SCREEN

50
- The Touch Screen
  50
- Using the Touch Screen
  50
- Verification Process for Safety-Related Parameters
  52
  - Parameters
    54
- Configuring Parameters on Individual
  54
  - Controllers
    54
- Setting the Date and Time on the System Display
  55
- Configuration Menus (All)
  56
- System Identification & Access
  56
- CH - Central Heat Configuration
  57
- Outdoor Reset Configuration
  57
- DHW - Domestic Hot Water Configuration
  57
- Warm Weather Shutdown Configuration
  57
- Demand Priority Configuration
  57
- Modulation Configuration
  57
- Pump Configuration
  57
- Statistics Configuration
  58
  - High Limits
    58
  - Stack Limits
    58
  - Delta T Limits
    58
- Frost Protection Configuration
  58
  - Burner Control Ignition
    59
- System Configuration
  59
- Sensor Configuration
  59
- Lead Lag Slave Configuration
  60
- Lead Lag Master Configuration
  63
- Parameter Defaults and Ranges
  63
- Connections to a Building Automation System
  67
- Vari-Prime Flow Control System
  68
- Combustion Setup Procedure
  69
Section 10 - INITIAL STARTUP INSTRUCTIONS

72
- Filling the Boiler System
  72
- Initial Operation
  73
  - Initial Burner Operation
    73
  - Combustion Setup Procedure
    73
- Shutting down the Magnatherm
  73
- Restarting the Magnatherm
  73
Section 11 - MAINTENANCE

74
- System Maintenance
  74
- Maintenance Notes
  74
  - Burner
    74
  - Modulating Gas Valve/ Venturi
    74
  - Controller
    75
  - Hot Surface Ignitor
    75
  - Flame Sensor
    75
  - Blower
    75
  - Heat Exchanger Tubes
    76
  - Gas Pressure Switches
    76
Section 12 - TROUBLESHOOTING

77
- About Lockouts, Holds, and Alerts
  77
  - Responding to a Lockout, Hold, or Alert
    77
  - Viewing the Lockout and Alert Histories
    77
- Troubleshooting Table
  79
- Diagnostic Tests and Input/Output Indicators
  93
- Lead/Lag Slave Diagnostics
  94
- Statistics
  94
- Analysis
  94
- Control Snapshot
  95
- Operating Sequence
  95
Section 13 - REPLACEMENT PARTS

96
- General Information
  96
- Component Illustrations, Parts Lists, and Part Numbers
  97
  - Frame and Jacket Assembly
    97
  - Final Assembly
    99
  - Waterway Outlet Assembly
    100
  - Blower Assy, Model 1600
    101
  - Blower Assy, Model 2000
    102
- Blower Assy, Models 3500 & 3000
  103
- Blower Assy, Models 3500 & 4000
  105
  - Gas Train Assembly, Models 1600 Thru 3000
    107
- Gas Train Assembly, Models 3500 & 4000
  108
  - Control Panel Assembly
    111
  - Distribution Box Assemblies
    112

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Laars MagnaTherm MGH2500 Manuals

Laars MagnaTherm MGH2500 Installation And Operation Instructions Manual (144 pages)

Table of Contents

SECTION 1 General Information

SECTION 2 Venting and Combustion Air

SECTION 3 Gas Supply and Piping

SECTION 4 Water Flow & Headloss Data

SECTION 5 Piping

SECTION 6 Condensate Drain Trap

SECTION 7 Electrical Connections

SECTION 8 Control Operation

The Home Screen

Login to Lock / Unlock the Display

Quick Start

D Configuration

Cascade (Lead / Lag)

E Service Screens

Messages and USB

Active Demands

SECTION 9 Parameter Tables

SECTION 10 Initial Startup Instructions

SECTION 11 Maintenance

SECTION 12 Troubleshooting

SECTION 13 Replacement Parts

Laars MagnaTherm MGH2500 Installation And Operation Instructions Manual (132 pages)

Table of Contents

Laars MagnaTherm MGH2500 Installation And Operation Instructions For (124 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 4.A Gas Supply and Piping

SECTION 5 Water Flow Requirements

SECTION 6 Water Connection Boilers

SECTION 7 Water Connections

SECTION 8 Electrical Connections 8.A Installation Warnings

SECTION 9 Navigating the Touchscreen

SECTION 10 Initial Startup Instructions

SECTION 11 Maintenance

SECTION 12 Troubleshooting

SECTION 13 Replacement Parts

Laars MagnaTherm MGH2500 Installation And Operation Instructions Manual (116 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 - WATER FLOW REQUIREMENTS

Section 6 - WATER CONNECTIONS, MGH

Section 7 - WATER CONNECTIONS, MGV

Section 8 - ELECTRICAL CONNECTIONS

Section 9 - NAVIGATING the TOUCH SCREEN

Section 10 - INITIAL STARTUP INSTRUCTIONS

Section 11 - MAINTENANCE

Section 12 - TROUBLESHOOTING

Section 13 - REPLACEMENT PARTS

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