Aerco 250 Water Heater Manuals

Manuals and User Guides for Aerco 250 Water Heater. We have 1 Aerco 250 Water Heater manual available for free PDF download: Installation And Maintenance Instructions Manual

Aerco 250 Installation And Maintenance Instructions Manual

Aerco 250 Installation And Maintenance Instructions Manual (136 pages)

Gas-fired condensing water heater

Brand: Aerco | Category: Water Heater | Size: 28 MB

Table of Contents

Safety Instructions
2
Table of Contents
8
1 Code Requirements

11
- Regulations and Guidelines
  11
- Commonwealth of Massachusetts
  12
2 General Information

13
- Key to Symbols Used
  13
- Manufactured by
  13
- Description of Models
  13
- Accessories Included
  13
3 Main Components

14
4 Function Overview

22
- Intended Use and Functions
  24
5 INSTALLATION - Location

25
6 INSTALLATION - Mounting the Heater

32
- Transporting the Heater
  32
- Mounting the Heater
  32
- Dimensions
  34
7 INSTALLATION - Water Side Head Loss of the Heater

35
8 INSTALLATION - Water Connections

36
- Hot and Cold Water Piping
  36
  - Near Water Heater Piping Components
    36
  - Temperature and Pressure Relief Valve
    37
  - Expansion Tank
    38
  - Circulator Pump
    38
  - Sizing Water System
    38
  - Anti-Legionella
    38
- Low Water Cutoff Device
  36
- Water Heaters Water Connections
  36
- How to Install the Circulator Pump
  38
- Scalding
  38
9 INSTALLATION - Condensate Disposal

41
- Condensate Disposal
  41
10 INSTALLATION - Electrical Connections

43
- Electrical Connections: Overview
  43
  - Connecting the Power Supply Cable
    43
  - Connection to a LWCO Device
    43
  - Alarm Contact
    43
- Connecting the Heater in Cascade
  45
11 INSTALLATION - Removing of an Heater from a Common Venting System

46
- Removing of an Heater from a Common Venting System
  46
12 INSTALLATION - CATEGORY IV: Vent and Combustion Air

47
13 INSTALLATION - CATEGORY II: Vent and Combustion Air

69
14 INSTALLATION - Gas Supply

72
15 Start-Up

78
- Operating
  78
  - User Instructions
    78
  - Filling the Condensate and Neutralizing Box
    78
- General Warnings Concerning Gas Supply
  78
- Confirming the Heater's Gas Type
  79
- Gas Type Conversion
  79
- Start-Up
  79
- Ignition Control Testing
  79
- Natural Gas
  79
- Gas Supply Pressure Checking
  80
- Checking and Adjusting CO2 Levels
  81
  - Checking CO2 Level on Units Model 199 and 250
    81
  - Checking CO2 Level on Units Model 399 and 500
    81
- Check the Capacity Input
  82
- Minimum Water Flow
  82
16 Use

83
- Check Water Pressure
  84
- Overview
  84
- Displays
  84
- Start-Up Procedure
  84
- Supply Water Temperature Adjustment
  84
- Water Temperature
  84
- Delays, Alarms and Protective Actions
  85
- Circulator Pump Protection
  85
- Heater's Freeze Protection
  85
- Display in Energy Saver Mode
  85
- Users' Menu
  86
- Installer's Menu
  87
- Diagnostic
  88
- Diagnostic: Lockouts "Loc
  89
- Diagnostic: Blocking Errors "Err
  91
- Flue Blocked Pressure Switch
  92
- Shuts Heater down
  92
- How to Clean the Appliance Jacket
  92
17 Maintenance

93
18 Technical Data

114
19 Spare Parts

116
20 Read out Flow Chart

131
21 Factory Menu

132
22 SEQUENCE of OPERATION for WATER HEATER

134

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