Table Of Contents - Lochinvar Commercial Electric Water Heaters Installation And Service Manual

CONTENTS
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Checking the Equipment . . . . . . . . . . . . . . . . . . . . . . . . .1
Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation Requirements
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Drain Pan Requirements . . . . . . . . . . . . . . . . . . . . . . . . .3
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Tank Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Cathodic Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Electrical Service
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Wire Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Jacket Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Standard and Optional Controls . . . . . . . . . . . . . . . . . . .7
Components and Controls
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Fuses and Fuse Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Surface Thermostats . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Contactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Immersion Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Temperature Regulation . . . . . . . . . . . . . . . . . . . . . . . . .10
Risk of Scald Warnings . . . . . . . . . . . . . . . . . . . . . . . . . .10
Temperature Limit Control . . . . . . . . . . . . . . . . . . . . . .11
Immersion Heating Elements . . . . . . . . . . . . . . . . . . . .12
Start-Up Procedure
Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Filling the Water Heater . . . . . . . . . . . . . . . . . . . . . . . . .12
Start-Up Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Maintenance
T&P Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Water Chemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Flushing the Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Sediment Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Scale Removal - Elements . . . . . . . . . . . . . . . . . . . . . . . .15
Trouble Shooting
Not Enough Hot Water . . . . . . . . . . . . . . . . . . . . . . . . . .16
Water Is Too Hot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Water Heater Sounds . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life. Do
not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other
appliance.
OWNER WARNING:
The information contained in this manual is
intended for use by qualified professional installers,
service technicians or the electric utility. Consult
your local expert for proper installation or service
procedures.
IMPORTANT:
Consult and follow local Electrical Codes, Building
and Fire Regulations and other Safety Codes that
apply to this installation.
officials and electric utility company to authorize
and inspect all field installed electrical connections.
Be sure to turn off power when working on or near
the electrical system of the water heater. Never touch
electrical components with wet hands or when
standing in water. When replacing fuses, always use
the correct size for the circuit. Do not test electrical
system before the water heater is completely filled
with water. Follow the start-up procedure.
To minimize the possibility of serious personal
injury, fire or damage to your appliance, never violate
the following safety rules.
1. Always keep the area around your appliance free of
combustible materials, gasoline, and other flammable
liquids and vapors.
2. Never cover your appliance, lean anything against it,
store trash or debris near it, stand on it or in any way
block the access to your appliance.
2
WARNING:
Consult local codes
CAUTION
WARNING: