Lochinvar 000 User Manual

supply pressure and adjust to ensure a supply
pressure between 4.0 and 10.5 inches water 
col 

umn natural gas (13.0" w.c. for propane) while 

the appliance is firing at 100% of rated input.

7. 

This is a reference pressure only and is not field 
adjustable. An ap 

pli 

ance supplied with a 

minimum of 4 inch 

es water column of gas supply 

pres 

sure will operate at the correct man 

i 

fold 

pressure as the burner input var 

ies with 

temperature demand.

8.

Close the two gas pressure test cocks on the 
pressure test tree and remove the hoses to the 
manometer.

9.

Close the front control panel.

Upon completion of any testing on the gas system, leak test
all gas connections with a soap solution while the main
burner is firing.  Immediately repair any leak found in the
gas train or related components.  DO NOT operate an
appliance with a leak in the gas train, valves or related gas
piping.

AIR INLET

GAS

WATER OUTLET

WATER INLET

FLUE OUTLET

– – – – = FIELD CONNECTED

 

MANIFOLD GAS PRESSURE

3.5" W.C.=  gas

P