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Laars MFTHW140 Manuals
Manuals and User Guides for Laars MFTHW140. We have
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Laars MFTHW140 manual available for free PDF download: Installation And Operation Instructions Manual
Laars MFTHW140 Installation And Operation Instructions Manual (96 pages)
Wall-Mounted, Modulating Gas, Condensing, Heating Only, Boiler
Brand:
Laars
| Category:
Boiler
| Size: 8.06 MB
Table of Contents
Table of Contents
2
Section 1
3
Product Accessories
3
Introduction
3
Included with the Appliance
3
Section 2
4
Product Characteristics
4
Model Nomenclature
4
Specifications
5
Dimensions
8
Names of Components
10
Product Flow and Characteristics
13
Section 3
14
Safety Regulations
14
Safety Symbols
14
Safety Precautions and Proper Use
16
Section 4
17
Installation
17
Location and Clearances
17
Wall Mount Bracket
18
Installation Height and Location
18
Hang the Boiler
18
Combustion Air
19
Combustion Air from Room
19
Ducted Combustion Air
19
Venting (Exhaust)
21
General Location Guidelines
22
Locations for Vent Pipe Terminator
23
Direct Venting Clearances
23
Non-Direct Venting Clearances
24
Venting Requirements in Massachusetts
25
Commonwealth of Massachusetts
25
Common Vent Test
26
Air Supply and Vent Connections at the Appliance
27
Vent / Air Pipe Lengths
27
Direct Venting
27
Indoor Combustion Air
28
Vent / Air Pipe Termination
29
Vertical Vent Termination
30
Gas Supply and Piping
31
Gas Supply Pressure
36
Gas Set up and Adjustment
37
High Altitude Installations and Orifices
38
Natural Gas to Propane Conversion
39
Plumbing Guidelines
43
Pressure Relief Valve
48
Disposal of Condensate
49
Electrical Wiring Connections
50
DIP Switches
51
Control Board, Electrical Diagram
52
Ladder Diagram
53
Electrical Connections
54
Section 5
56
Control Display and Operation
56
Control Dial and Buttons
56
LCD Overview
57
Operating Mode
58
Setting the Clock
59
CH Set Point Change Mode
60
Status Display Mode
61
Installer Mode
62
Storage (Indirect Water Heater)
65
Outdoor Reset Adjustment
66
External Set Point Temperature Control
66
Error Mode
67
Section 6
68
Error Codes
68
Fault Tree Analysis
72
Section 7
73
Trouble Shooting
73
Diagnostics
73
Suggested Corrective Actions
74
Maintenance
76
Section 8
76
Annual Startup and General Maintenance
76
Flushing the Boiler
78
Section 9
79
Installation Check
79
Quick View
79
Final Check Lists
80
Parts
82
Section 10
82
Parts List and Illustrations
82
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