Laars FTHW399 Manuals

Manuals and User Guides for Laars FTHW399. We have 1 Laars FTHW399 manual available for free PDF download: Installation And Operation Instruction Manual

Laars FTHW399 Installation And Operation Instruction Manual (100 pages)

Wall-Mounted Modulating Condensing Gas Boiler (Includes Optional Floor Stand Accessory Information)

Brand: Laars | Category: Boiler | Size: 9 MB

Table of Contents
2
Introduction about this Installation Manual
3
SECTION 1 Introduction
3
Included in the Box
4
SECTION 2 Product Characteristics Model Number
5
SECTION 2 Product Characteristics
5
Dimensions
5
Specifications
6
Specifications, 301
6
Specifications, 399
6
Names of Components
8
Product Flow Paths and Characteristics
9
Central Heating Flow. Boiler Heating Mode
9
SECTION 3 Safety Regulations Safety Symbols
10
Section 3 Safety Regulations
10
Safety Precautions and Proper Use
10
Before Operation
12
SECTION 4 Installation
13
Location and Clearances (Wall)
13
Wall Mount Bracket
14
Mounting Location Preparation
14
Hang the Boiler
14
Location and Clearances for Boiler
15
With Optional Floor Stand
15
Flooring & Leveling
16
Combustion Air
17
Combustion Air from Room
17
Ducted Combustion Air
17
Venting (Exhaust)
19
General Location Guideline
20
Locations for Vent Pipe Terminator
21
Venting Requirements in the Massachusetts
22
Air Supply and Vent Connections
23
Vent / Air Pipe Lengths for Dual Pipe Venting
23
Indoor Combustion Air
24
Vent / Air Pipe Terminations
24
Vertical Vent Termination
24
Horizontal Vent Termination
25
Low Profile Two-Pipe Sidewall Venting
26
Flexible Vent Systems
27
Concentric Vent Termination
28
Common Vent Test
29
Common Vent System
30
Safety
30
General Guidelines
30
Determining the Common Vent Length
31
Common Vent Materials
32
Common Vent Required Components
32
Sizing a Common Vent System
33
Common Vent System, Examples
33
Common Vent Kits
35
Gas Supply and Piping
36
Gas Supply Pressure
39
High Altitude Installations. 2,000' to 10,000
40
Natural Gas to Propane Conversion
41
Adjusting Combustion
44
Plumbing and Wiring Guidelines
46
Single Wall-Mounted Boiler with DHW Heating
48
Floor Stand Application: Zoning with Zone Valves
50
Cascade System with Separate Controls
52
Applicable Backflow Preventer
54
Hydronic Accessories
54
Primary/Secondary Piping
55
Pressure Relief Valve
56
Disposal of Condensate
57
Electrical Wiring Connections
58
DIP Switches
59
Control Board, Electrical Diagram
60
Ladder Diagram
61
Electrical Connections, (Table)
62
SECTION 5 Control Display and Operation
64
Control Dial and Buttons
64
LCD Overview
65
Operating Mode
66
Setting the Clock
67
Set Point Change Mode
68
Status Display Mode
69
Installer Mode
70
DHW Indirect Storage Mode
73
Outdoor Reset Adjustment
74
External Set Point Temperature Control
74
Error Mode
75
BMS Communication
75
Modbus Memory Map
76
SECTION 6 Error Codes Error Code Tables
80
SECTION 6 Error Codes
80
Fault Tree Analysis
83
Fault Tree Analysis (Cont)
84
Section 7 Trouble Shooting
85
Diagnostics
85
Suggested Corrective Actions
85
Section 8 Maintenance
87
Maintenance Procedures [ Daily ]
87
Maintenance Procedures [ Monthly ]
87
Maintenance Procedures [Every 6 Months]
88
SECTION 9 Installation Check
88
Quick View
88
Final Check Lists
89
Freeze Protection
90
SECTION 10 Parts
91
Casing Assembly
94
Accessory Items
98

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Laars FTHW399 Installation And Operation Instruction Manual (100 pages)

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