MODEL 1800 & 1800SL
PROPER SET UP:
Model 1800SL is a liquid withdrawal unit. This unit
will use 8.25 gal of LP per hour. Use at least (1) 200
gal. withdrawal tank. This will insure 20 hours of
continuous operation. Since the 1800(L) is a Liquid
Propane unit, it must be set up outside of the build-
ing. Use 3/8” or 1/2” LPG approved hose or copper
tube.
Model 1800S is a Vapor Propane or Natural Gas unit.
When using Propane (liquid or vapor) turn the fuel selec-
tor valve (located on the lower manifold) to the
Propane
position. When using
Natural Gas
turn the selector valve
to the
Natural Gas
position. This unit can be set up
indoors or out.
6
NATURAL GAS QUICK
REFERENCE HOSE
CHART
Hose
BTU
Length
750,000
in Feet <1PSI 1PSI 2PSI 5PSI
10
1-1/2
1
3/4
3/4
25
1-1/2
1
3/4
3/4
35
1-1/2
1
3/4
3/4
50
2
1
1
3/4
75
2
1-1/4
1
3/4
100
2
1-1/4
1
3/4
125
2
1-1/4 1-1/4
3/4
150
2
1-1/4 1-1/4
3/4
175
2
1-1/4 1-1/4
3/4
200
2-1/2 1-1/4 1-1/4
3/4
225
2-1/2 1-1/4 1-1/4
3/4
VAPOR PROPANE QUICK
REFERENCE HOSE
CHART
Hose
BTU
Length
750,000
in Feet 1/2PSI 10PSI
10
1
3/4
25
1-1/4 3/4
35
1-1/4 3/4
50
1-1/2 3/4
75
1-1/2 3/4
100
1-1/2 3/4
125
2
3/4
150
2
3/4
175
2
3/4
200
2
3/4
225
2
3/4
Summary of Contents for 1800
Page 16: ...16 Note New Fenwal Control Board ...
Page 18: ...18 ...
