Rheem 97MDV060 Series Installation Instructions Manual page 48

W RNING
TURN OFF ELECTRIC L POWER ND M IN G S
SUPPLY BEFORE BEGINNING MODIFIC TION.
F ILURE TO DO SO C N RESULT IN ELECTRIC L
SHOCK OR EXPLOSION C USING PROPERTY
D M GE, PERSON L INJURY OR DE TH.
KIT INST LL TION
1. Turn off power to unit and disconnect the gas line at the
union ahead of the combination gas valve.
2. Remove the burner compartment access door.
3. Disconnect the wires from the gas valve and remove the
screws that attach the manifold, and then remove from
assembly.
4. Follow detailed instructions on "LP Conversion Kit" to
convert the gas valve for LP (Figure is included). Con-
vert the gas valve from natural gas to LP by removing
the "NAT" sticker and applying the supplied jumper on
the receptacle located beneath the label. Make sure that
both prongs of receptacle engage
5. Remove the burner orifices from the manifold and re-
place with the supplied LP orifices.
6. NOTE: To convert the stepper-controlled modulating gas
valve, a jumper is required to connect the two pins inside
the jumper well. It is possible to install the jumper such
that the pins are not connected. This is incorrect. The
jumper must connect the pins together inside the jumper
well. This can be confirmed by visual inspection and by
verifying proper manifold pressure at high fire (100%)
after the jumper is installed. Manifold pressure should
always be checked when converting the furnace for LP
operation. Figures 33 and 34 below show the correct
way and the incorrect way to install the jumper. The
jumper well is located next to the adjustment well (with
"+" and "–" text and two-headed arrow) and will be cov-
ered by a sticker or label. To convert to LP the label over
the jumper well will need to be removed.
FIGURE 33
LP JUMPER INSTALLED ON SERVO MODULATING GAS VALVE WITH PINS
PROPERLY CONNECTED. THIS IS CORRECT. MAKE SURE THAT THE
JUMPER CONNECTS THE TWO PINS TOGETHER AND VERIFY MANIFOLD
GAS PRESSURE AT HIGH FIRE TO MAKE SURE THAT THE VALVE IS PROP-
ERLY CONVERTED FOR LP GAS
48
the jumper.
JUMPER
PROPERLY IN-
STALLED.
NOTE THAT
PINS ARE
CONNECTED.
FIGURE 34
LP JUMPER INSTALLED ON SERVO MODULATING GAS VALVE WITH PINS
NOT CONNECTED. THIS IS INCORRECT. MAKE SURE THAT THE JUMPER
CONNECTS THE TWO PINS TOGETHER AND VERIFY MANIFOLD GAS
PRESSURE AT HIGH FIRE TO MAKE SURE THE VALVE IS PROPERLY CON-
VERTED FOR LP GAS
DO NOT REMOVE OR DEF CE ORIGIN L R TING PL TE.
FIGURE 35
ST-A1194-84-00
JUMPER IM-
PROPERLY IN-
STALLED.
NOTE THAT
PINS ARE NOT
CONNECTED.
X
ST-A1195-84