Lochinvar 999 - 750 Manuals

Manuals and User Guides for Lochinvar 999 - 750. We have 1 Lochinvar 999 - 750 manual available for free PDF download: Installation And Service Manual

Lochinvar 999 - 750 Installation And Service Manual (72 pages)

HYDRONIC HEATING BOILERS and DOMESTIC WATER HEATERS 399,999 - 2,070,000 Btu/hr MODELS

Brand: Lochinvar | Category: Boiler | Size: 3.23 MB

Domestic Water Heaters
1
Table of Contents
2
General Product Information

3
- Special Instructions
  3
- Unpacking
  3
- Codes
  3
- Warranty
  3
Safety Information

4
Product Identification

5
Installation

6
Freeze Protection

7
- Pump Operation
  7
- Location
  7
- Hydronic System Antifreeze
  7
- Outdoor Boiler Installation
  7
- Shutdown and Draining
  8
Freeze Protection for a Heating Boiler System

8
- Combustion and Ventilation Air
  8
- Combustion Air Filter
  8
- Combustion Air Options
  9
- Exhaust Fans
  11
Venting

11
Vent System Options

15
- Barometric Damper Location
  15
- Conventional Negative Draft Venting
  16
- 2. Vertical Directaire™ Venting
  17
- Sidewall Venting
  19
- Horizontal Directaire ™ Venting
  21
- Direct Venting
  22
- Outdoor Installation Venting
  26
Connecting to Gas Supply

28
- Gas Pressure Test
  28
- Gas Piping
  28
- Connecting Gas Piping to Unit
  28
- Gas Train and Controls
  29
- Combination Gas Valves
  30
- Venting of Combination Gas Valves
  30
- Checking Gas Supply Pressure
  30
- Gas Manifold Pressure Adjustment
  31
Connecting to Water Supply

32
- Inlet and Outlet Connections
  32
- Relief Valve
  33
- Water Flow Switch
  33
- Low Water Cutoff
  33
Connecting to Electrical Supply

33
Boiler System Piping

34
Water Treatment

40
- Terminal Strip Connection Options
  40
Operation

41
- Lighting Instructions
  42
- To Turn off Gas to Appliance
  43
- Programming Temperature Control
  43
- Quick Programming Overview
  43
- Adjust Menu Setting Descriptions
  44
- Access Levels
  46
- Temperature Control
  46
- Placement of Sensors
  46
- Staging Logic
  47
Hot Surface Ignition System

49
Operation and Diagnostic Lights

51
Domestic Water Heaters

52
- Water Velocity Control
  52
- Water Chemistry
  52
- Pipe Size Requirements
  53
- Circulating Pump
  53
- Minimum Pump Performance
  54
- Heat Exchanger
  54
- Potable Hot Water Temperature Control Settings
  54
- Location of Cold Water Supply Piping Connections
  55
- High Water Temperature Limit Control
  55
- Optional Relief Valve
  55
- Thermal Expansion
  55
- Cathodic Protection
  55
Cleaning and Maintenance

56
Sequence of Operation

59
Troubleshooting Guide

62
- 750,000 Btu/Hr Models
  62
Troubleshooting Guide

63
- 2,070,000 Btu/Hr Models
  63
Wiring Diagram

64

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Water Heater Boiler Gas Heater Heat Pump Swimming Pool Heater

More Lochinvar Manuals

Lochinvar 999 - 750 Manuals

Lochinvar 999 - 750 Installation And Service Manual (72 pages)

Table of Contents

General Product Information

Safety Information

Product Identification

Installation

Freeze Protection

Freeze Protection for a Heating Boiler System

Venting

Vent System Options

Connecting to Gas Supply

Connecting to Water Supply

Connecting to Electrical Supply

Boiler System Piping

Water Treatment

Operation

Hot Surface Ignition System

Operation and Diagnostic Lights

Domestic Water Heaters

Cleaning and Maintenance

Sequence of Operation

Troubleshooting Guide

Troubleshooting Guide

Wiring Diagram

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Lochinvar Categories