Rheem Manufacturing 1x2000, Installation Instructions Manual

Page: 17 / 36

LP CONVERSION
The gas valve is not field convertible for
use with LP gas. LP conversion kit no.
RXGJ-FP09 is required. The kit
includes a LP gas valve, burner orifices
and the Installation Instructions. Follow
the kit instructions for installing and
adjusting the orifices and valve.
NOTE: Order the correct LP conversion
kit from the furnace manufacturer.
Furnace conversion to LP gas must
be performed by a qualified
technician.
To change orifice spuds for either
conversion to LP or for elevation:
1. Shut off the manual main gas
valve and remove the gas supply
piping from the gas valve.
2. Remove the four (4) screws
securing the manifold assembly
and remove the assembly.
3. Replace the orifice spuds.
4. Reassemble in reverse order.
Consult the tables at right if there is any
question concerning orifice sizing.
5. Turn the gas supply back on and
check for proper operation and
manifold pressure.
6. Attach the notice label alerting the
next service technician that the
furnace has been converted to LP
gas.
17
RATING PLATE ELEVATION
INPUT
BTU/HR 0 TO 7,999 FT. 8,000 FT. AND ABOVE
NATURAL GAS
HEATING VALUE @ 1,000 BTU/FT 3 , SPECIFIC GRAVITY 0.62
MANIFOLD PRESSURE @ 3.5
(
W.C.
50,000 42 43
75,000 42 43
100,000 42 43
125,000 42 43
150,000 42 43
L.P. GAS
HEATING VALUE @ 2,475 BTU/FT 3 , SPECIFIC GRAVITY 1.52/
MANIFOLD PRESSURE @ 10
(
W.C.
50,000 54 55
75,000 54 55
100,000 54 55
125,000 54 55
150,000 54 55
ORIFICE SIZING CHART
RATING PLATE ELEVATION
INPUT
BTU/HR 0 TO 1,999 FT. 2,000 FT. TO 4,500 FT.
NATURAL GAS
HEATING VALUE @ 1,000 BTU/FT 3 , SPECIFIC GRAVITY 0.62
MANIFOLD PRESSURE @ 3.5
(
W.C.
50,000 42 42
75,000 42 42
100,000 42 42
125,000 42 42
150,000 42 42
L.P. GAS
HEATING VALUE @ 2,475 BTU/FT 3 , SPECIFIC GRAVITY 1.52/
MANIFOLD PRESSURE @ 10
(
W.C.
50,000 54 54
75,000 54 54
100,000 54 54
125,000 54 54
150,000 54 54
ORIFICE SIZING CHART (CANADA)