Lochinvar EFW 125 Manuals

Manuals and User Guides for Lochinvar EFW 125. We have 1 Lochinvar EFW 125 manual available for free PDF download: Installation, Commissioning, User And Maintenance Instructions

Lochinvar EFW 125 Installation, Commissioning, User And Maintenance Instructions (144 pages)

Wall mounted gas fired condensing water heater

Brand: Lochinvar | Category: Water Heater | Size: 7.58 MB

Table of Contents
3
Introduction
7
Regulations
7
Safety Guidelines
8
General Description of Safety Symbols Used
9
What to Do if You Smell Gas
10
Important Technical Warnings and Guidelines
10
Water Quality (also See § 8.1)
10
Starting the Water Heater
10
Water Flow Velocity and Pump Selection
11
Safety Valve
12
Domestic Hot Water (DHW)
12
Technical Data Efw Water Heaters
13
Functional Introduction
13
Location of Version Numbers
13
Error Log
13
Technical Specifications Datasheet
14
Erp
15
Dimensions & Connections
16
Efw 85 & Efw 105
16
Efw 125
17
Efw 155
18
Efw 85 - 125 Flue Spigot Dimensions
19
150 MM Coaxial Flue Spigot
19
100 MM Twin Flue Spigots
19
Efw 155 Flue Spigot Dimensions
20
150 MM Twin Flue Spigots
20
Cascade Frames
21
Cascade Frame Dimensions
22
Accessories and Unpacking
23
Accessories
23
Unpacking
23
Installation Location of the Efw
24
Installation Clearances
24
Water Heater Installation Location Requirements
25
Mounting the Water Heater
25
Connections
27
Tank Positioning
27
Water Heater Connections
27
Condensate Drain Connection
27
Non-Return Valve
28
Pump Functionality
28
Frost Protection
28
Water Quality
29
Flush the System with Fresh Water
29
D E -Air Sequence
29
Water Pressure
30
The Efw Sanitairy System: Installation Instructions
31
Stand-Alone Set-Up
31
Stand-Alone Configuration
32
Cascade Set-Up
33
Cascade Calculations
34
Heat Exchanger Resistance Graphs
37
Resistance Graph
37
Resistance Graph
38
Resistance Graph Efw 155
38
Minimum Required Pump Head
39
Pump: Maximum Electric Power
39
Flue Gas and Air Supply System
40
General
40
Polypropylene
41
Flexible Polypropylene
41
Stainless Steel Vent
42
Air Supply
42
Combustion Air Quality
42
Air Supply through Humid Areas
42
Air Inlet Pipe Materials
42
Room Air
42
Air Contamination
43
Corrosive Contaminants and Sources
43
Flue Terminal Locations
44
Water Heater Categories - Types of Flue Gas Systems
45
C63 Certified
52
Pipe Heights and Mutual Distances on a Flat Roof
52
Flue Gas and Air Supply Resistance Table
53
Typical Examples
54
Example A: Twin Pipe System with Separate Pipes for Flue Outlet and Air Supply
54
Example B: Twin Pipe System with Concentric Roof Terminal
55
Example C: Single Flue Gas Outlet. Air Supply from Water Heater Room
57
Example D: Concentric Flue Gas/Air Supply Pipe (Roof-Mounted)
58
Example E: Concentric System Wall Outlet C13 (Wall-Mounted)
58
Example F: Separate Air Supply Duct & Flue Duct in Different Pressure Zone (C53)
60
Common Flue Cascading
61
Safety Measures Common Flue Systems
61
Existing Common Venting Guidelines
63
Electrical Installation
64
General
64
Connection Mains Supply
64
Electrical Connections
64
Explanation of the Low Voltage Connections
66
Explanation of the Mains Voltage Connections
67
Electrical Schematics
68
Ladder / Logic Diagram
70
Sensor Availability
71
Ntc Sensor Curve
71
Programmable In- and Outputs
71
Display and Buttons
73
Display Configuration
74
Starting the Water Heater
75
Set Actual Setpoint/Dhw Setpoint Directly Via the Status Overview
75
Set Actual Setpoint/Dhw Setpoint by the Menu
75
Protected Menu Items
76
Aeration Sequence
76
Language Settings
76
Change Language Via the Menu
77
Change the Language Via the Menu Icons
77
Water Heater History
77
Error Logging
78
Service Reminder
79
Service Overdue Logging
79
Reset the Service Reminder
79
Menu's and Parameters
79
General
80
Pump Start Every 24 Hours
80
Frost Protection
80
Ignition Cycle
80
Control Functions
82
On Board HMI and LED Colors
83
Flame Detection
83
Flame Recovery
83
Demand for Domestic Hot Water
84
DHW Storage with Bulb and Strap-On Sensor; DHW Mode 1
84
Anti-Legionella Protection
85
Display Menu Structure Summary
87
Temperature Protection
95
Error Information
95
Water Heater History
95
Lockout Codes
96
Blocking Codes
98
Warnings
100
Cascading
101
System Setup
101
Quick-Guide Cascade Set-Up
102
Water Heater Cascade Communication Setup
103
Setting the Water Heater Address
103
Setting of the Cascade Parameters
104
Cascade - Managing Water Heater
104
Cascade - Depending Water Heater
105
Cascade - Power Balance Mode
105
Cascade - Water Heater Rotation
105
Next Module to Start Selection
106
Cascade Error Handling
106
Cascade Frost Protection
106
Emergency Mode
106
Loss of Cascade Communication
107
Managing Water Heater Error
107
System Test
107
Commissioning the Water Heater
108
First: Flushing the Water Heater with Water
108
Second: Filling & Venting the Water Heater and the System
108
Third: Check the Water Flow
108
Mounting Condensate Trap
108
Checking Gas Pressure
109
Firing for the First Time
109
Adjusting and Setting the Water Heater
110
Introduction
110
Combustion Table
110
Setting Screws Venturi- and Gas Valves: Drawings
111
Adjustment Procedures
112
Venturi Replacement Adjustment
113
Conversion from Natural Gas to Propane
113
Start up Checklist
116
Inspection, Maintenance and Service
119
General
119
Nspection Maintenance and Service
119
Decalcifying of the Heat Exchanger
125
Mounting the Burner Door
126
Instructions for the User
127
Recycling
127
Maintenance Checklist
128
Spare Parts
129
User's Part
130
Abbreviations
130
Safety Guidelines
130
To Turn off Gas to the Appliance
131
Maintenance and Inspection
131
Display and Buttons
132
Explanation of the Buttons
132
Display Configuration
133
Entering the Menu
134
Changing the Setpoint Dhw
135
Password
135
Available Menu Items
136
Information
136
Software Versions
136
Service
137
Settings
137
General Settings
137
Language
137
Unit Type
137
Date & Time
137
Time Zone Settings
137
Display Settings
137
Cascade Mode
137
Other Settings
137
Error Logging
139
Service Reminder
139
Appendix
140
Warranty Terms and Conditions
140

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Lochinvar EFW 125 Manuals

Lochinvar EFW 125 Installation, Commissioning, User And Maintenance Instructions (144 pages)

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