Install Instructions

ManualsBrandsLochinvar ManualsCommercial Water Heaters40 Gallon - 40,000 BTU Energy Saver Residental Water Heater (Nat Gas)

TABLE OF CONTENTS

Water Heater Safety .............................................................................................................................................................................. 1

Safe Installation, Use and Service ...................................................................................................................................................... 3

Safety Precautions ............................................................................................................................................................................ 3-4

Typical Installation ............................................................................................................................................................................... 5

Installing your Gas Water Heater ..................................................................................................................................................... 6-8

Important Information About Your Water Heater ...................................................................................................................... 6

Consumer Information ............................................................................................................................................................. 6

Consumer Responsibilities ...................................................................................................................................................... 6

Unpacking the Water Heater ................................................................................................................................................... 6

Location Requirements ............................................................................................................................................................ 7

Site Location ............................................................................................................................................................................ 7

Clearances and Accessibility ................................................................................................................................................... 8

State of California .................................................................................................................................................................... 8

Gas Supply ....................................................................................................................................................................................... 9-10

Gas Requirements .................................................................................................................................................................... 9

Gas Piping ............................................................................................................................................................................... 9

Gas Pressure ........................................................................................................................................................................... 9

Gas Pressure Testing ............................................................................................................................................................... 9

LP Gas Only ........................................................................................................................................................................... 10

Combustion Air and Ventilation ....................................................................................................................................................11-15

Unconfined Space ...................................................................................................................................................................11

Confined Space ......................................................................................................................................................................11

All Air from Inside the Building ............................................................................................................................................... 12

All Air from Outdoors .............................................................................................................................................................. 12

Louvers and Grilles ........................................................................................................................................................... 12-13

Vent Pipe System .................................................................................................................................................................. 13

Draft Hood Installation ...................................................................................................................................................... 13-14

Vent Pipe Size ....................................................................................................................................................................... 14

Vent Connectors .................................................................................................................................................................... 14

Chimney Connection .............................................................................................................................................................. 14

Vertical Exhaust Gas Vent ................................................................................................................................................ 14-15

Water System Piping ..................................................................................................................................................................... 15-18

Piping Installation .............................................................................................................................................................. 15-16

Closed System/Thermal Expansion ....................................................................................................................................... 16

Temperature & Pressure Relief Valve .................................................................................................................................... 17

T&P Relief Valve and Pipe Installation .................................................................................................................................. 17

Combination Space Heating/Potable Water System ........................................................................................................ 17-18

Solar Installation .................................................................................................................................................................... 18

Important Information About this Water Heater ..............................................................................................................................19

Operating Your Water Heater ....................................................................................................................................................... 20-26

Lighting Instructions .......................................................................................................................................................... 20-21

Checking the Draft ................................................................................................................................................................. 22

Burner Flames ....................................................................................................................................................................... 22

Emergency Shutdown ..........................................................................................................

.................................................. 22

Water Temperature Regulation ......................................................................................................................................... 22-23

Operating the Temperature Control System ........................................................................................................................... 23

Operational Conditions ..................................................................................................................................................... 23-24

Draining and Flushing ............................................................................................................................................................. 25

Routine Preventive Maintenance ........................................................................................................................................... 25

Temperature and Pressure Relief Valve ........................................................................................................................... 25-26

Maintenance of Your Water Heater .............................................................................................................................................. 26-29

Replacement Parts ................................................................................................................................................................ 26

Removing the Burner from the Manifold/Burner Assembly ................................................................................................... 26

Replacing the Pilot / Thermopile Assembly ........................................................................................................................... 27

External Inspection & Cleaning of the Base-Ring Filter ........................................................................................................ 28

Cleaning the Combustion Chamber and Flame-arrestor ....................................................................................................... 28

Replacing the Manifold Burner/Assembly ......................................................................................................................... 28-29

Piezoelectric Igniter System .................................................................................................................................................. 29

Testing the Igniter System ..................................................................................................................................................... 29

Removing and Replacing the Gas Control Valve/Thermostat ............................................................................................... 29

FVIR System Operational Checklist ...................................................................................................................................... 30

Troubleshooting Checklist ........................................................................................................................................................... 30-31

Pilot Light Troubleshooting Flowchart ............................................................................................................................................ 32

Status Light and Diagnostic Code Troubleshooting Chart ........................................................................................................ 33-34

Notes .... ............................................................................................................................................................................................... 35

Repair Parts ................................................................................................................................................................................... 36-37

Warranty .......................................................................................................................................................................................... 38-39