Install Instructions
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
&IGURE Propane gas venturi label identification
(Black label)
&IGURE 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).
"OILER
-ODEL 0ART.UMBER 'AS4YPE 6ENTURI
80/110
511-050-233 LPG 20
150 511-050-234 LPG 26
199 511-050-235 LPG 28
"OILER
-ODEL
0ART.UMBER 'AS
4YPE
6ENTURI
80/110 511-050-230 NG 22
150 511-050-231 NG 26
199 511-050-232 NG 28
Gas conversions (continued)
&IGURE
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
&IGURE
Air silencer removal
1
2
2
3