Laars FT Series, Инструкция по установке и эксплуатации, Страница: 37 / 92

The FT Series Wall Mounted, Combination Boiler
Page 37
4.14
Natural Gas to Propane Conversion
800.900.9276
•
Fax 800.559.1583
(Customer Service, Service Advisors)
20 Industrial Way, Rochester, NH 03867
•
603.335.6300
•
Fax 603.335.3355
(Applications Engineering)
1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8
•
905.238.0100
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Fax 905.366.0130
www.Laars.com
Document 4288D
The FT Series, Wall Combi, Gas Conversion Kit
pg 1 of 4
The FT Series, wall combi, condensing boiler is
confi gured for Natural Gas (NG) from the factory.
A Natural Gas to Propane Conversion Kit is included
with every FT. The gas conversion kit will show you
how to convert your FT boiler to propane gas. If your
FT does not have the bag containing the conversion
kit, a replacement kit can be obtained. Contact the
manufacturer and request a replacement conversion kit.
NOTICE
If your installation altitude is greater than 2000 ft, check
that the ‘High Altitude’ Installer Setting has been adjusted
to suit your installation altitude. Refer to Section 4.12 of the
Installation and Operation Instructions (Document 1318).
WARNING
This gas conversion kit shall be installed by a qualifi ed
service agency in accordance with the manufacturer’s
instructions and all applicable codes and requirements of
the authority having jurisdiction. The information in these
instructions must be followed to minimize the risk of fi re or
explosion or to prevent property damage, personal injury
or death. The qualifi ed service agency is responsible for
the proper installation of this kit. The installation is not
proper and complete until the operation of the converted
appliance is checked as specifi ed in the manufacturer’s
instructions supplied with the kit.Installation must conform
to local codes and the latest edition of the National Fuel
Gas Code, ANSI Z223.1 and CAN-B149.1. Failure to
follow instructions could result in serious injury or property
damage. The qualifi ed agency performing this work
assumes responsibility for gas conversion.
CAUTION
This combination boiler has already been set to burn natural
gas, but can be converted to burn LP gas. Before placing the
combination boiler into operation, verify that the type of gas
supplied to your combination boiler.
Steps 1 thru 17
ON / OFF
H2373800D
Model
Natural Gas (NG) part # Propane Gas (LP) part #
FTCW140
FT1412N FT1412P
FTCW199
FT1780 FT1802
Nozzle
Orifi ce
Kit # R20770
1. Turn OFF the FT. The ON / OFF button is located at
the bottom left of the Control Display
.
2. Turn OFF the GAS and WATER supply to the FT
(valves are located on the plumbing pipes.)
3. Using a Phillips screwdriver, remove the 4 screws on
the front cover. See Figure A.
4. Locate the Gas Inlet Pipe at the top left of the unit as
shown in Figure A, and loosen the Brass Fittings at
both ends of the Gas Inlet Pipe.
5. Completely unthread the brass fi tting on the blower end
of the Gas Inlet Pipe and then carefully swing the Gas
Inlet Pipe to the left or right, just enough so that it is out
of the way. See Figure B.
6. Remove the existing natural gas nozzle or orifi ce. If
your unit is a 199, note that the fl at side of the orifi ce is
towards the blower. Save the packing for re-use. See
Figure C.
Table A. Gas Conversion Parts