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Takagi
Water Heater
540P Indoor
Takagi 540P Indoor User Manual
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3
Pag
e
Inst
allaon Manual
Ins
t
allation Manual
CONGRA
TULA
TIONS
Congra
tulations and thank you f
or choosing our tankless wat
er heater
.
Bef
ore use, we r
ecommend that you r
ead through this installa
tion
If you need an additional manual, con
tact the manufactur
er or your
local distribut
or
. When you call, please t
ell us the product name and
the serial number of your unit writ
ten on the rating pla
te of the wat
er
heater
.
2
4
Table of Contents
Default Chapter
2
Table of Contents
2
Specifications
4
Introduction
5
Safety Guidelines
6
Safety Definition
6
General
6
Incorporated Recirculation Pump
7
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
14
Exhaust Vent (ABS,PVC,CPVC, or Polypropylene Vent)
18
DIP Switch Settings for Vent Length (ABS,PVC,CPVC, or Polypropylene Vent)
19
Exhaust Vent (Stainless Steel Vent)
23
DIP Switch Settings for Vent Length (Stainless Steel Vent)
23
Common Venting System
26
Vent Termination Clearances
28
Clearances for Sidewall Terminations
29
Clearances for Rooftop Terminations
30
Gas Supply and Gas Pipe Sizing
31
General
31
Gas Connections
31
Natural Gas Supply Piping
32
Propane (LP) Supply Piping
32
Water Connections
33
Installation W/ Dedicated Return Line
33
Installation W/O Dedicated Return Line
34
Pressure Relief Valve
34
Condensate Drain
35
Condensate Drain Connections
35
Electrical Connections
37
Temperature Remote Controller
38
Included Accessories
38
Installation
38
Easy-Link System
40
Easy Link Connection Procedures
40
Applications
42
Combination Potable Water Heating and Space Heating
42
Recirculation
42
Dual-Purpose Hot Water Heating
43
Initial Operation
44
Initial Test Run
44
Owner's Guide
47
Operating Safety
48
Normal Operation
50
Built-In Controller and Remote Controller
50
General
50
Outlet Water Temperature Setting
51
Temperature Table of Controller
51
Setting the Time
52
Pump Operation Timers
52
Setting Pump Timers
53
Selecting a Pump Timer
55
Display Example
56
Manual Pump Activation
57
Manual Pump Operation
57
Additional Features
59
Information Mode
59
Unit Conversion Mode
59
Temperature Settings on the Pcb
60
Flow
60
Freeze Protection System
61
Maintenance and Service
62
Measuring Inlet Gas Pressure
62
Unit Draining and Filter Cleaning
63
Troubleshooting
64
General
64
Error Codes
66
Components Diagram
70
Parts List
74
Output Temperature Chart
76
4
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Takagi 540P Indoor Specifications
General
Brand
Takagi
Model
540P Indoor
Category
Water Heater
Language
English
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