Lp Conversion - Rheem *96V series Installation Instructions Manual

NOTE: See Page 82 for Canadian High-Altitude
Derate.
The valve can be converted to use liquified petroleum (LP)
gas by replacing the pressure regulator springs with the
conversion kit springs. This LP kit spring allows the regula-
tors to maintain the proper manifold pressure for LP gas.
NOTE: Order the correct LP conversion kit from the fur-
nace manufacturer. Furnace conversion to LP gas must be
performed by a qualified installer, service agency or the
gas supplier.
ORIFICE INSTALLATION
LP Gas is a manufactured gas that has consistent heating
value across most regions.
The Sea Level input should still be reduced by 4% per
thousand ft. and the orifice size must be selected based on
the reduced input selection chart in High Alt. Instruction
Section.
To change orifice spuds for either conversion to LP or for
elevation:
1. Shut off the manual main gas valve and remove the
gas manifold.
2. Replace the orifice spuds.
3. Reassemble in reverse order.
4. Turn the gas supply back on and check for proper op-
eration and manifold pressure.
5. Attach the notice label alerting the next service techni-
cian that the furnace has been converted to LP gas.
74
TABLE 13
LP GAS PIPE CAPACITY TABLE (CU. FT./HR.)
Maximum capacity of pipe in thousands of BTU per hour of undiluted liquefied petroleum gases (at 11 inches water
column inlet pressure).
(Based on a Pressure Drop of 0.5 Inch Water Column)
Nominal
Iron Pipe
Size, Inches 10 20 30
1/2 275 189 152
3/4 567 393 315
1 1,071 732 590
1-1/4 2,205 1,496 1,212 1,039
1-1/2 3,307 2,299 1,858 1,559
2 6,221 4,331 3,465 2,992
Example (LP): Input BTU requirement of unit, 120,000
Equivalent length of pipe, 60 ft. = 3/4" IPS required.
LP TANKS FROM LOCAL LP SUPPLIER MUST NOT
BE USED TO STORE ANYTHING (SUCH AS FERTIL-
IZER) EXCEPT LP GAS. THIS INCLUDES ALL DELIV-
ERY VESSELS (LP TRUCKS). IF MATERIAL OTHER
THAN LP GAS IS USED IN THE SAME
VESSELS/TANK AS THE LP GAS, THE LP GAS CAN
BECOME CONTAMINATED AND DAMAGE THE FUR-
NACE. THIS WILL VOID THE MANUFACTURER'S
WARRANTY. CONTACT THE SUPPLIER TO MAKE
SURE FERTILIZER IS NOT USED IN THE SAME
TANKS USED TO STORE AND DELIVER LP GAS.
FIGURE 38
TYPICAL LP KIT CONTENTS
Length of Pipe, Feet
40 50 60 70 80
129 114 103 96 89
267 237 217 196 182
504 448 409 378 346
913 834 771 724
1,417 1,275 1,181 1,086 1,023
2,646 2,394 2,205 2,047 1,921
90 100 125 150
83 78 69 63
173 162 146 132
322 307 275 252
677 630 567 511
976 866 787
1,811 1,606 1,496