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=_ INSTRUCTIONS _OR WILLIAMS GAS APPLIANCE
CONVERSION KITS 7685, 7687, 7688, 7690 & 7691
iil=Jl_' i=,t;tl=_;,},]il'ii n_!l NATURAL G_S TO LIQUID PROPANE GAS
THIS KIT IS FOR USE
WITH MODEL NUMBERS:
This conversion kit shall be installed by a qualified
service agency in accordance
manufacturer's instructions and all applicable
codes and requirements of the authority having
jurisdiction. If the information in these instructions
is not followed exactly, a fire, explosion or
production of carbon monoxide may result, causing
property damage, personal injury or loss of life.
The qualified service agency is responsible for the
proper installation of this kit, The installation is not
proper and complete until the operation of the
converted appliance is checked as specified in the
manufacturer's instructions supplied with the kit,.
3508332; 3508732; 5008732;
5508332; 6_08732; 6008532
PPL!CATION: THESE CONVERSION KITS ARE USED ON
E FORSAIRE TOP VENT WALL FURNACES WHEN
I_QUIPPED WiTH NATURAL GAS VALVES;
P323209 (STANDING PILOT MODELS)
i P3232t0 (ELECTRONIC IGNITION MODELS)
with the WITHhOmm STAINLESS STEEL BURNER 12956
dONVERTtNG TO LP GAS
THIS K_ CONTAINS:
(1} CAP SCREW
(t) PRESSURE REGULATOR ADJUSTMENT SCREW
(t) SPR_NG (RED)
(3) CONVERSION LABELS
(1 OR 2) PILOT ORIRCES (LP. GAS')
(1 OR 2) BURNER ORIRCES (LP GAS)
{1) LPG. TAG
{1) "O" RING
_AUTION:THE GAS SUPPLY MUST BE
SHUTOFF PRIOR TO DISCONNECTING THE
ELECTRICAL POWER BEFORE PROCEEDING
WITH THE CONVERSION,
I,,
2.,
3.,
4_
5_
,.
7,,
8_,
9,,
10o
11_
12.
13
I4.
!5
16,
17.,
18.
19,
2&
CONVERSION INSTRUCTIONS - NATURAL GAS TO LP. GAS
Shut off gas to the furnace,
Shut off electric power to the furnace,
Disconnect gas supply linefrom control valve
Remove electronic ignition module (if equipped).
CAUTION: Label all wires prior to disconnection for'proper reconnection,
STANDING PILOT MQDELS ONLY_ Disconnect (2) tw$ wires from terminal block on thermocouple
and (2) two wires from control valve.
Use a 7/16" open end wrench to remove outer end nuts rom burner wire hangers and swing them up to
drop burner down. '_
NOTE: On single burner models, (2) two sheet metal ;crews are used instead of end nuts°
Pull the burner and control assembly forward to free itfrom he rear burner support bracket,
Once removed, all work can be performed on work bench.
Use a7/16" boxed end wrench and remove the burner orifice(s) from the manifold and replace with the orifice(s)
provided in this kit. Refer to Figure 1 on page 2
Remove pilot orifice from pilot and replace with orifice prov_ed in this kit, Refer to Figure 2A or B on page 2.
Remove regulator cap screw and pressure regulator adjust!ng screw Refer to Figure 3 on page 2.
Remove the existing spring, i
insertthe replacement red spring. Refer to Figure 4 on pa{e 2_
Install the new plastic pressure regulator adjustment screw !Assure that the screw top is flush with the regulator
top. I
Turn pressure regulator adjustment screw clockwise efever_complete turns. The preliminary pressure setting
isapproximately I0.,5 in, w.c. for LP gas regulator and 4,0 i_. w,,c.,for natural gas regulator
J
Check the regulator setting using a manometer or by ctock_nnthe gas meter°
installthe new cap screw and O ring,
Reassemble the furnace by following the steps above in re{,erse order°
Use information from chart on page 3 to fill in blanks on sepplemental data label_ A_ach label permanently
adjacent to the rating plate on a cteer surface area° i
Leave these instructionswith the homeowner.
REV 6/00 P323213_A917 74 SHT 1 OF
