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Laars LMH Manuals
Manuals and User Guides for Laars LMH. We have
3
Laars LMH manuals available for free PDF download: Installation And Operation Instructions Manual, User Manual
Laars LMH Installation And Operation Instructions Manual (52 pages)
Wall-Mounted Modulating Boiler 125 MBTU/h and 125 MBTU/h, Combination Boiler and Water Heater 125 MBTU/h
Brand:
Laars
| Category:
Boiler
| Size: 4.13 MB
Table of Contents
Table of Contents
2
Section 1.
4
General Information
4
Introduction
4
Rating Plate
4
Model Nomenclature
4
Start up / Shut down Instruction (Decal)
5
Unpacking
5
Warranty
5
Product Overview
6
Appliance Overview
6
Dimensions
7
Section 2.
8
Locating the Appliance
8
Locating Appliance for Correct Vent Distance from Outside Wall or Roof Termination
8
Section 3.
10
Venting and Combustion Air
10
Combustion Air
10
Combustion Air from Room
10
Ducted Combustion Air
10
Venting (Exhaust)
11
Side Wall Vent Terminal
12
Side Wall Combustion Air Terminal
12
Vertical Vent Terminal
12
Vertical Combustion Air Terminal
12
Installations in the Commonwealth of Massachusetts
12
Common Vent Test
14
Section 4.
16
Gas Supply and Piping
16
Section 6.
17
Section 5.
17
Pump Capacity
17
Mascot II Heating System Pump Capacity
17
Water Connections
17
Central Heat System Piping
17
Cold Water Make-Up
17
Freeze Protection
18
Suggested Piping Schematics
18
Recognized Chemicals
19
Domestic Hot Water (DHW) Piping (LMC)
19
Condensate Drain
19
Section 7.
25
Electrical Connections
25
Main Power
25
Pump Connections
25
24Vac Transformer Circuit Breaker
25
Central Heat - Call for Heat
25
Outdoor Air Temperature Sensor
25
Domestic Hot Water Connection
25
System Sensor
25
(Lead Lag/Cascading Operation Only)
25
External Control Connections
25
Wiring Diagrams
26
Section 8.
28
Control Setup and Operation
28
USER INTERFACE and Digital Display Navigation
28
Ignition Control- Sequence of Events
29
Modulation Control
29
Pump Control
29
High Limit
29
Stack Temperature
29
Domestic Hot Water Temperature
29
Lead Lag / Cascading
29
Lead Lag Setpoint
29
Lead Lag Master/Slave Selection
29
Lead Lag Address
29
Hydronic Heating Demand
30
Hydronic Heating with Outdoor Reset
30
Hydronic Heating Using External
30
Modulation Control
30
Hydronic Heating Using Local Lead-Lag/Cascading Feature
31
Warm Weather Shutdown
31
Domestic Hot Water Demand (LMC Only)
31
Modes of Operation
30
Section 9.
30
Section 10.
32
Set up Instructions
32
Filling the Boiler System
32
Starting the Burner after Set up
32
Burner Operation
32
Boiler Setup and Adjustment
33
Manifold Pressure Check
33
Shutting down Mascot II
33
To Restart Mascot II
33
Section 11.
35
Maintenance
35
System Maintenance
35
Appliance Maintenance and Component Description
35
Burner
35
Appliance Control
35
Ignitor Assembly
35
Flame Sensor
36
Blower
36
Heat Exchanger Coils
36
Gas Conversion
36
Section 12.
37
Sequence of Operation
37
Trouble Shooting
37
Short Cycling
37
Replacement Parts
40
Section 13
40
General Information
40
Parts List
40
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Laars LMH User Manual (8 pages)
MASCOT II Wall Mounted, Modulating Boiler Combination Boiler and Water Heater
Brand:
Laars
| Category:
Boiler
| Size: 1.4 MB
Table of Contents
Familiarizing Yourself to the Laars Mascot II
2
Filling the Boiler System
3
Caring for Your Mascott II
3
Filling, Shut down and Restart
3
Shutting down Mascot II
4
To Restart Mascot II
4
Digital Display Navigation
5
Digital Display and Control
5
High Limit
6
Stack Temperature
6
Domestic Hot Water Temperature
6
Modulation Control
6
Pump Control
6
Laars LMH User Manual (9 pages)
Modulating Boiler 125 MBTU/h, Combination Boiler and Water Heater
Brand:
Laars
| Category:
Boiler
| Size: 1.05 MB
Table of Contents
What to Do if You Smell Gas
2
Que Faire si Vous Sentez Une Odeur de Gaz
2
General Information
3
Warranty
3
Model Identification
3
Filling the Boiler System
5
Operating the Burner and Set up
5
Required Tools
5
Shutting down Mascot II
6
To Restart Mascot II
6
Gas Conversion
8
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