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AT-D3U-IN
Takagi AT-D3U-IN User Manual
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54
Pag
e
510U (A
T
-D3U-IN/OS)
110U (A
T
-KJr3U-IN/OS) and
310U (AT-K5U-IN/OS)
701
705
103
402
402
707
713
403
714
709
708
711
705
103
709
402
402
711
707
714
407
408
708
701
064
713
712
712
721
721
Computer board assembly
Surge box assembly
Components Diagram
Owner's Guide
120
705
053
062
706
703
068
704
705
716
53
55
Table of Contents
Default Chapter
2
Table of Contents
2
Installation Manual
3
Specifications
4
Introduction
5
Safety Guidelines
6
Safety Definition
6
General
6
Installation
7
General
7
Clearances
9
Included Accessories
9
Optional Items
9
Warning for Installations
11
High-Altitude Installations
12
Venting Instructions
13
General
13
Combustion Air Supply
15
Vent Length and No. of Elbows
19
DIP Switch Settings for Vent Length
20
Outdoor Installation
22
Clearances for Sidewall Terminations
23
Clearances for Rooftop Terminations
23
Clearances for Multiple Sidewall Terminations
24
Clearances for Multiple Rooftop Terminations
24
Vent Termination Clearances
25
Gas Supply and Gas Pipe Sizing
26
General
26
Gas Connections
26
Natural Gas Supply Piping
27
Propane (LP) Supply Piping
27
Measuring Inlet Gas Pressure
28
Water Connections
28
Pressure Relief Valve
29
Electrical Connections
29
Temperature Remote Controller
30
Included Accessories
30
Installation
30
Easy-Link System
32
Easy Link Connection Procedures
32
Multi-Unit System
34
Applications
35
Space Heating Applications
35
Recirculation
35
Dual-Purpose Hot Water Heating
36
Initial Operation
37
Owner's Guide
38
Operating Safety
39
Normal Operation
41
Built-In Controller and Remote Controller
41
General
41
Temperature Settings
42
Temperature Settings on the Pcb
44
Flow
45
Freeze Protection System
45
Maintenance and Service
46
Unit Draining and Filter Cleaning
46
Troubleshooting
47
General
47
Error Codes
49
Components Diagram
53
Parts List
57
Output Temperature Chart
60
Limited Warranty
61
4
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Takagi AT-D3U-IN Specifications
General
Brand
Takagi
Model
AT-D3U-IN
Category
Water Heater
Language
English
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