Sears 8101 P590-60 - Manual (Page 7)

Gas Conversion
General
All ovens are equipped with double coaxial (universal)
orifices and with a convertible appliance pressure
regulator. The unit model number plate states which gas it
was adjusted for at the factory. To convert the unit to
either Natural gas or LP gas will require adjustment of the
orifice hood and air shutter on the burner and adjustment
of the appliance pressure regulator converter cap.
Inlet pressure to the appliance pressure regulator should
be as follows for both operation and checking of appliance
pressure regulator setting:
INLET PRESSURE IN NATURAL LP
INCHES OF WATER COLUMN GAS GAS
Minimum 5 11
Maximum 14 14
off with nut). “IMPORTANT” remove plastic dust cover
from cap nut and reinstall on opposite side of cap nut.
Reinstall cap nut to appliance pressure regulator and
replace dust cover. “CAUTION” be sure marking for the
type of gas to which appliance pressure regulator has
just been converted is visible in top of cap nut before
replacing plastic dust cover. (See figure 7.)
3. Remove cap and forcibly snap out plastic plunger from
bottom of cap. Turn plunger over and forcibly snap
back in original location (figure 8).
NOTE: PLUNGER MUST SNAP INTO POSITION; THE
GAS TYPE YOU ARE CONVERTING TO MUST BE
VISIBLE ON LOWER SIDE OF PLUNGER.
Appliance Pressure Regulator
Conversion
The unit appliance pressure regulator must be set to
match the type gas supply used. If converting from natural
gas to LP gas, the appliance pressure regulator must be
converted to regulate LP gas. If converting from LP gas to
natural gas, the appliance pressure regulator must be
converted to regulate natural gas.
TO CONVERT THE APPLIANCE PRESSURE
REGULATOR FROM ONE GAS TO ANOTHER, DO
EITHER (1), (2) OR (3) BELOW: YOUR UNIT WILL BE
EQUIPPED WITH ONE OF THE THREE APPLIANCE
PRESSURE REGULATOR TYPES SHOWN BELOW.
1. Remove the cap, push down and turn
counter-clockwise. Turn the cap over and reinstall
(figure 6),
NOTE: THE GAS TYPE YOU ARE CONVERTING TO
MUST BE VISIBLE ON THE TOP OF THE INSTALLED
APPLIANCE PRESSURE REGULATOR CAP.
2. Remove plastic dust cover from cap nut on top of
appliance pressure regulator. Remove cap nut from
appliance pressure regulator (plastic dust cover comes
Checking Manifold Gas Pressure
BUILT-IN OVENS:
On built-in ovens, remove 1/8 inch pipe plug from front or
side of gas pressure regulator, install 1/8" “B” valve, 1/8
inch piece of pipe, connect manometer, make sure main
burner is on to obtain accurate pressure check.
Be sure the gas supply (house piping) pressure is at least
one inch (1") above specified range manifold pressure.
The gas supply pressure should never be over fourteen
inches (14") water column.
Checking Pressure Of House Piping
System
The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 Ibs./sq. in. (13.8 in. W.C.).
The appliance must be isolated from the gas supply piping
system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 Ibs./sq.
in. (13.8 in. W.C.).