Laars FT Series, Инструкция по установке и эксплуатации, Страница: 39 / 92

The FT Series Wall Mounted, Combination Boiler
Page 39
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Document 4288D
The FT Series, Wall Combi, Gas Conversion Kit
pg 3 of 4
Gas Valve
Adjustment Port
+
+
-
-
Gas Valve
Adjustment Port
Figure D
Table B DIP Switch Settings
Shown is a
Model 140
with 3" Venting
and using
Natural Gas
Figures E
MBH 120
140
175
199
ON OFF
MIN Fire Normal Operation
MAX Fire Normal Operation
NG Natural LP Propane
3” Vent Size
2” Vent Size
ON OFF ON ON
ON OFF OFF ON
OFF ON ON ON
FTCW
140
FTCW
199
7. Install the new LP (propane) nozzle or orifi ce. Re-
use the packing from previous.
8. Return the Gas Inlet Pipe to its original position
and tighten both brass fi ttings.
9. Per Table B, set DIP Switch 5 to OFF for LP
Propane.
10. Turn ON the GAS and WATER supply to the FT
11. Now start the unit and adjust combustion as
described in Section 4.12
12. Upon completion of set up, write in the correct
Conversion Date and the Technicians Name to
the included gas conversion sticker. See Figure F.
Then apply that sticker adjacent to the rating plate.
4.14 Natural Gas to Propane Conversion (continued)