Lochinvar 000 - 500 - Manual (Page 2)

Warranty ..................................................................................1
Safety Warnings ......................................................................1
Codes
..................................................................................3
Location ..................................................................................3
Clearances................................................................................4
Combustion/Ventilation Air Requirements ............................4
Conventional Venting ..............................................................7
Masonry Chimney Installations ............................................10
Sidewall Venting....................................................................10
Automatic Vent Damper ........................................................11
Gas Supply ............................................................................12
Gas Pres sures & Piping..........................................12
Manifold Pressure Adjustment ..............................15
Supply Pres sure Measurement ..............................16
Gas Valves ............................................................................17
Relief Valve ..........................................................................18
Flow Switch ..........................................................................18
Electrical Connections ..........................................................19
Temperature Adjustment ......................................................20
Temperature Limit Control....................................................22
Blocked Vent and Flame Roll-Out System ..........................23
Lighting Instructions ............................................................24
Ignition & Control Timings ..................................................28
Freeze Protection ..................................................................28
Maintenance ..........................................................................29
Flame Patterns ........................................................29
Inspection Cleaning Procedure ............................................30
Heat Ex chang er/Burner Access ............................30
Inspection and Cleaning ........................................30
Gas Train................................................................................32
Heating Boiler ......................................................................32
Installation Requirements ......................................32
Pump Requirements ..............................................32
Pressure Drop Chart ..............................................33
Boiler Pump Operation ..........................................33
Typical Piping ........................................................33
Bypass Requirements ............................................33
Low Tem per a ture Systems ....................................35
Boiler Flow Rates ..................................................35
Placing Boiler in Operation ..................................36
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
Temperature Rise ..................................................39
Water Chemistry ....................................................40
Pump Operation ....................................................40
Risk of Scald Warnings..........................................42
Troubleshooting ....................................................................44
Wiring Diagrams ..................................................................46
Revision Notes ...................................................... Back Cover
The information contained in this manual is
in tend ed for use by qualified professional in stall ers,
service technicians or gas suppliers. Con sult your
local expert for proper installation or service
procedures.
2
CONTENTS
USER WARNING
Consult and follow local Building and Fire
Regulations and other Safety Codes that apply to
this installation. Consult your local gas utility
company to authorize and inspect all gas and flue
connections.
Should overheating occur or the gas supply fail to
shut off, do not turn off or disconnect the electrical
supply to the pump. Instead, shut off the gas supply
at a location external to the appliance.
To minimize the possibility of serious personal
injury, fire or damage to your unit, never violate the
following safety rules.
1. Boilers and water heaters are heat producing
appliances. To avoid damage or injury, do not
store materials against the appliance or the vent-
air intake system. Use proper care to avoid
unnecessary contact (especially children) with
the appliance and vent-air intake components.
2. Never cover your appliance, lean anything
against it, store trash or debris near it, stand on it
or in any way block the flow of fresh air to
your ap pli ance.
3. UNDER NO CIRCUMSTANCES must
flammable materials such as gasoline or paint
thinner be used or stored in the vicinity of this
appliance, vent-air intake system or any location
from which fumes could reach the appliance or
vent-air intake system.
ƽ WARNING
ƽ WARNING
IMPORTANT
Your conventionally vented gas appliance must have
a supply of fresh air circulating around it during
burner operation for proper gas combustion and
proper venting.
IMPORTANT