Lochinvar 75,000 Btu/hr Manuals

Manuals and User Guides for Lochinvar 75,000 Btu/hr. We have 1 Lochinvar 75,000 Btu/hr manual available for free PDF download: Installation And Service Manual

Lochinvar 75,000 Btu/hr Installation And Service Manual

Lochinvar 75,000 Btu/hr Installation And Service Manual (52 pages)

HYDRONIC HEATING BOILERS and DOMESTIC WATER HEATERS 45,000 - 500,000 Btu/hr

Brand: Lochinvar | Category: Water Heater | Size: 3 MB

Table of Contents

Warranty
1
Safety Warnings
1
- Table of Contents
  2
- Installation Procedure
  3
Codes
3
Location
3
Clearance from Combustible Construction
4
Clearances
4
Combustion/Ventilation Air Requirements
4
A Conventional Negative Draft Venting System
7
Venting Termination
9
Masonry Chimney Installations
10
Sidewall Venting
10
Automatic Vent Damper
11
Gas Supply
12
- Gas Pres Sures & Piping
  12
  - Gas Pressure Test
    12
  - Gas Connection
    12
  - Gas Connections
    13
  - Gas Piping
    14
- Gas Manifold Pressure Adjustment Procedure
  15
- Checking Gas Supply Pressure
  16
- Supply Pres Sure Measurement
  16
Gas Valves
17
Relief Valve
18
Water Flow Switch (if Equipped)
18
Low Water Cutoff (if Equipped)
19
Electrical Connections
19
Temperature Adjustment
20
- Outdoor Air Reset Option
  22
- Additional Temperature Controls
  22
Temperature Limit Control
22
Initial Start-Up
23
Blocked Vent and Flame Roll-Out/Flame Interlock Switch
23
- Pre-Start Checklist
  24
- What to Do if You Smell Gas
  24
Lighting Instructions
24
Ignition & Control Timings
28
Freeze Protection
28
Water Treatment
29
Maintenance
29
- Flame Patterns
  29
Inspection Cleaning Procedure
30
- Heat Exchanger/Burner Access
  30
- Inspection and Cleaning
  30
Piping of the Boiler System
32
Gas Train
32
Water Connections Heating Boilers Only
32
- Installation Requirements
  32
- Pump Requirements
  32
- Circulator Pump Specifications
  33
- Pressure Drop Chart
  33
- Boiler Pump Operation
  33
- Typical Piping
  33
- Primary/Secondary Boiler Piping
  34
- Bypass Requirements
  35
- Low Tem Per a Ture Systems
  35
- Three Way Valves
  35
- Boiler Flow Rates
  35
- Typical Heating Boiler Installations
  36
- Placing Boiler in Operation
  36
- Installation with a Chilled Water System
  37
- Temperature Rise Chart
  37
- Boiler Temperature Control
  38
Remote Thermostat Control Connection
38
Power Venter Connection
38
Domestic Water Heater
38
- Water Velocity Control
  39
- Required Temperature Rise
  39
- Water Chemistry
  40
- Softened Water Systems
  40
- Pump Operation
  40
  - Minimum Pump Performance
    41
  - Heat Exchanger
    41
  - Thermostat Settings
    41
  - Optional Relief Valve
    42
- Risk of Scald Warnings
  42
  - Thermal Expansion
    43
  - Cathodic Protection
    43
Troubleshooting
44
Wiring Diagrams
46

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