Table of Contents
Advertisement
The FT Series Floor Standing, Combination Boiler
The FT Series, Floor-Standing, Gas Conversion Kit
FTCF140
+
-
22.
It may be necessary to go back and forth between HI Fire and LOW Fire several times (and making
adjustments ONLY at LOW Fire), before CO 2 at both are within acceptable levels. Be sure to put the
cap screw back onto the gas valve adjustment port when done.
5. Connect a manometer to the Manifold Pressure
23.
Port. See Figure E. For dual port manometers,
Once the CO 2 and manifold pressure measurements for both MIN and MAX Fire are acceptable per
use the positive pressure side. Check for proper
Table D, set DIP switches 6 and 7 to the OFF position for Nominal Fire (normal operation). The FT is
manifold gas pressure. Refer to Table C on page
now operating in it's normal mode.
34.
24.
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.
6. Establish a call for heat. You may need to
25.
Remove your combustion Analyzer from the combustion test port and be sure to thread the test port plug
disconnect the outdoor reset if you are making this
back into position.
gas conversion during warm weather.
26.
Re-connect outdoor reset if it was disconnected previously in this conversion and put the Front Panel
and Top Access Panel back on. Tighten them into place using the knob and 4 fasteners that you
The FT Series, Floor-Standing, Gas Conversion Kit
disassembled in Step 3.
ON
This unit was converted on ____/____/___to _____gas
MIN Fire
with kit #____________by______________________
(name and company __________________________
MAX Fire
accountable)_________________________________
NG Natural
___________________________________________
3" Vent Size
Cette unité a été converti ____/____/____ten ______gaz
ON
en utilisant le kit numéro _____
(nom et société_________________________________
ON
responsable)___________________________________
OFF
_____________________________________________
MBH
Table B DIP Switch Settings
15.
Setup your combustion Analyzer and
place the sensor into the combustion test port.
16.
Per Table B for Max Fire , change dip switch 6 to ON and 7 to OFF.
The unit will cycle up to MAX fi re.
17.
WAIT for your combustion Analyzer to stabilize. This may take up to 3 minutes depending on your combustion
Analyzer. Then check the CO 2 measurement for MAX fi re. Refer to Table D for acceptable MAX fi re
combustion readings. At this point, just record the CO readings at MAX Fire. Do NOT attempt to adjust
Gas Valve
Adjustment Port
(under the cap
screw)
OFF
Normal Operation
Normal Operation
LP Propane
2" Vent Size
OFF
ON
ON
par______________
OFF
OFF
ON
ON
ON
ON
140
199
800.900.9276 • Fax 800.559.1583
20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.3355
1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8 • 905.238.0100 • Fax 905.366.0130
www.Laars.com
FTCF199
Manifold
Pressure Port
Figure E
7. Setup your combustion analyzer and place the
sensor into the combustion test port.
8. Per Table B (below) for Max Fire, change DIP
switch 6 to ON and 7 to OFF. The unit will cycle
up to MAX fire
Photo shows a model
140 using 3" venting
and natural gas.
Document 4290C
-
Document 4290C
Figure F (Conversion label)
(Customer Service, Service Advisors)
(Applications Engineering)
Figure D
Page 35
pg 4 of 4
Advertisement
Table of Contents
