Laars LT199NRX1 Manuals

Manuals and User Guides for Laars LT199NRX1. We have 4 Laars LT199NRX1 manuals available for free PDF download: Installation And Operation Instruction Manual, Installation And Instruction Manual

Laars LT199NRX1 Installation And Operation Instruction Manual (98 pages)

Wall-Mounted, Modulating Gas Condensing Water Heater with Recirculation pump

Brand: Laars | Category: Water Heater | Size: 11 MB

Table of Contents
2
SECTION 1 Product Accessories
3
Introduction
3
Included with the Unit
3
SECTION 2 Product Characteristics
4
Model Nomenclature
4
Specifications
5
Dimensions
6
Names of Components
7
SECTION 3 Safety Regulations
8
Safety Symbols
8
Safety Precautions and Proper Use
10
SECTION 4 Installation
12
Location and Clearances
12
Wall Mount Bracket
13
The Installation Height and Location
13
Hang the Water Heater
13
Combustion Air
14
Combustion Air from Room
14
Ducted Combustion Air
14
Venting (Exhaust)
15
Selecting Vent Pipe
17
General Location Guideline
18
Locations for Vent Pipe Terminal
19
Direct Venting Clearances
19
Non-Direct Venting Clearances
20
Venting Requirements in the Commonwealth of Massachusetts
21
Common Vent Test
22
Air Supply and Vent Connections
23
Vent / Air Pipe Lengths
23
Direct Venting
23
Single Venting(Air Supply from Indoor Space)
23
Polypropylene Flexible Vertical Vent System
24
Vent / Air Pipe Termination
24
Cascade System
27
Piping
27
Electrical
30
Cascade Programming
31
Common Vent System (U.S. Installation Only)
33
Installing the Common Vent System with PVC or CPVC Venting Materials (U.S. Installation Only)
38
PVC Common Venting Componets Configuration
43
Polypropylene Common Venting
43
Gas Supply and Piping
44
Gas Conversion
47
Gas Supply Pressure
47
Gas Setup and Adjustment
48
Gas High Altitude Setting
49
Plumbing Guidelines
50
Re-Circulation Setting
52
Air Handler Setting
57
Setting the Display Panel
58
Disposal of Condensate
60
Pressure Relief Valve
61
Electrical Wiring Connections
62
DIP Switches
63
Wiring Diagram
64
Ladder Diagram
65
Electrical Connections
66
SECTION 5 Display Panel and Operation
68
Control Dial and Buttons
68
LCD Overview
69
Operating Mode
70
Status Display Mode
71
DHW Set Point Change Mode
72
Installer Mode
73
Error Mode
74
SECTION 6 Error Codes
75
Error Codes
75
SECTION 7 Troubleshooting
79
Diagnostics
79
SECTION 8 Maintenance
82
General Maintenance
82
SECTION 9 Installation Check
85
Quick View
85
Final Check Lists
85
SECTION 10 Part List
87
Case Parts
87
Fitting Parts
89
Fan & Heat Exchanger Parts
91
SECTION 11 LT Series Warranty
93

Laars LT199NRX1 Installation And Operation Instruction Manual (68 pages)

Wall-Mounted, Modulating Gas Condensing Water Heater

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

Table of Contents
2
SECTION 1 Product Accessories
3
Introduction
3
Included with the Unit
3
SECTION 2 Product Characteristics
4
Model Nomenclature
4
Specifications
5
Dimensions
6
Names of Components
7
SECTION 3 Safety Regulations
8
Safety Symbols
8
Safety Precautions and Proper Use
9
SECTION 4 Installation
12
NOTE: for Cascading Installations, Please Refer
12
Location and Clearances
12
Wall Mount Bracket
13
The Installation Height and Location
13
Hang the Water Heater
13
Combustion Air
14
Combustion Air from Room
14
Ducted Combustion Air
14
Venting (Exhaust)
15
Venting (Exhaust)
16
General Location Guideline
18
Locations for Vent Pipe Terminal
19
Direct Venting Clearances
19
Non-Direct Venting Clearances
20
Venting Requirements in the Commonwealth of Massachusetts
21
Common Vent Test
22
Air Supply and Vent Connections
23
Vent / Air Pipe Lengths
23
Direct Venting
23
Single Venting
24
Vent / Air Pipe Termination
24
Gas Supply and Piping
27
Gas Supply Pressure
30
Gas Setup and Adjustment
30
Gas High Altitude Setting
31
Plumbing Guidelines
32
Re-Circulation Setting
33
Setting the Control Panel
37
Disposal of Condensate
39
Pressure Relief Valve
40
Electrical Wiring Connections
40
DIP Switches
41
Wiring Diagram
42
Ladder Diagram
43
Electrical Connections
44
SECTION 5 Control Display and Operation
46
Control Dial and Buttons
46
LCD Overview
47
Operating Mode
48
Status Display Mode
49
DHW Set Point Change Mode
50
Installer Mode
51
Error Mode
52
SECTION 6 Error Codes
53
Error Codes
53
SECTION 7 Troubleshooting
57
Diagnostics
57
SECTION 8 Maintenance
60
General Maintenance
60
SECTION 9 Installation Check
63
Quick View
63
Final Check Lists
64
SECTION 10 LT Series Warranty
65

Laars LT199NRX1 Installation And Instruction Manual (6 pages)

Cascade Rack System

Brand: Laars | Category: Racks & Stands | Size: 2 MB

Laars LT199NRX1 Installation And Instruction Manual (6 pages)

Cascade Rack System

Brand: Laars | Category: Racks & Stands | Size: 2 MB

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