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Part number 550-100-260/0520
15
ECO
®
Tec
GAS-FIRED WATER BOILER – 80/110/150/199 BOILER MANUAL
Liquefied Petroleum (Propane) to Natural Gas
conversion kits
ECO Tec
511-050-230 1
562-150-304 3
1
1
1
550-225-336 1
1
ECO Tec
511-050-231 1
562-150-304 3
1
1
1
550-225-336 1
1
ECO Tec
511-050-232 1
562-150-304 3
1
1
1
550-225-336 1
1
Propane gas venturi label identification
(Black label)
Natural gas venturi label identification
(White label)
Installing propane venturi —
1. Propane venturi will have a black label identifying venturi
part number. See Figure 10 for correct part number.
2. Verify that the label on the propane venturi is correct for
the model size (see Figure 10 below).
3. Shut off the gas supply prior to disconnecting the electrical
power, before proceeding with the conversion.
4. If the jacket front door was not already removed, remove it.
5. Locate the blower and venturi (see Figure 12).
80/110
511-050-233 LPG 20
150 511-050-234 LPG 26
199 511-050-235 LPG 28
80/110
511-050-230 NG 22
150 511-050-231 NG 26
199 511-050-232 NG 28
Gas conversions (continued)
Blower, gas valve, venturi assembly
for Figures 12, 13, 14, 15, 16 and 17
Air Silencer
Air silencer clip
Venturi
Blower
Gas valve
Gas pipe
Swivel nut
Fiber Washer
O-Ring
LP Orifice
6. Gently open up the "U" part of the silencer clip and remove
from venturi / silencer assembly, see Figures 12 and 13.
1
4
2
7
3
6
5
Air silencer removal
1
2
2
3
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