Intertek FT Series - Page 41

The FT Series Floor Standing, Heating Only Boiler
Page 41
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Document 4388
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
140
199
ON OFF
MIN Fire Normal Operation
MAX Fire Normal Operation
NG Natural LP Propane
3” Vent Size
2” Vent Size
FTCW140
FTCW199
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.
4.15 Natural Gas to Propane Conversion (continued)
7. Install the new LP (propane) orifice. Re-use the
existing gasket. Install the LP orifice with its
identifying mark facing inward.
8. Return the Gas Inlet Pipe to its original position
and tighten both brass fittings.
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.
Figure E
Shown is a Model 199 Natural Gas
with 3” Venting.
Gas Valve
Adjustment Port
7* 6* 5 4 3 2 1
OFF OFF LP Gas 2˝ Vent
Low
Fire
High
Fire
Natural
Gas
3˝ Vent
FACTORY SET
*Dip Switches #7 and #6 are Maximum and Minimum re test
Switches which are used only when setting up combustion (See Section 4.13)
These Switches should only be in the ON position during either High or Low re
Testing. When nished testing, ensure both of these switches are in the OFF position.
Dip Switches #1, 2 and 3 are Set at the factory and should not need adjusting. For
Reference the correct positions of these three switches are as follows:
Model FTHF199 : All three dipswitches should be in the “down”/ ON position. As
shown above.
Table B
Dip Switch Settings