Ratings
Notes:
1. The ratings are based on standard test procedures prescribed
by the United States Department of Energy.
2. Net AHRI ratings are based on net installed radiation of
suffi cient quantity for the requirements of the building
and nothing need be added for normal piping and pickup.
Ratings are based on a piping and pickup allowance of 1.15.
3. FTXL boilers require special gas venting. Use only the vent
materials and methods specifi ed in the FTXL Installation
and Operation Manual.
4. Standard FTXL boilers are equipped to operate from sea
level to 4,500 feet
only
with no adjustments. The boiler
will de-rate by 4% for each 1,000 feet above sea level up to
4,500 feet.
5. High altitude FTXL boilers are equipped to operate from
3,000 to 12,000 feet
only
. The boiler will not de-rate up
to 5,400 feet and will de-rate by 1.6% for each 1,000 feet
above 5,400 feet. High altitude models are manufactured
with a different control module for altitude operation, but
the operation given in this manual remains the same as the
standard boilers. A high altitude label (as shown in Fig. A)
is also affi xed to the unit.
De-rate values are based on proper combustion calibration
and
CO2’s adjusted to the recommended levels.
6
Maximum allowed working pressure is located on the rating plate.
NOTICE
FTXL Boiler
AHRI Rating
Model Number
Note: Change “N” to
“L” for L.P. gas models.
Input
MBH
(Note 4)
Min Max
Gross
Output
MBH
(Note 1)
Net
AHRI
Ratings
Water,
MBH
(Note 2)
FTX400N
40
399
392
341
FTX500N
50
500
489
425
FTX600N
85.7
600
585
509
FTX725N
103.5
725
705
613
FTX850N
121.5
850
825
717
Other Specifi cations
Boiler
Water
Content
Gallons
Water
Connections
Gas
Connections
Air
Size
Vent
Size
(Note 3)
13.2
2"
1"
4"
4"
11.9
2"
1"
4"
4"
11.9
2"
1"
4"
4"
17.2
2 1/2"
1"
4"
6"
15.9
2 1/2”
1”
4”
6”
Figure A High Altitude Label Location
6. Ratings have been confi rmed by the Hydronics Section of
AHRI.
7. FTXL boilers comply with the requirements of CSD-1
Section CW-400 requirements as a temperature operation
control. The manual reset high limit provided with the
FTXL is listed to UL353.
Installation & Operation Manual
Содержание 500
Страница 55: ...55 8 Field wiring continued Figure 8 3 Low Voltage Field Wiring Connections Installation Operation Manual ...
Страница 60: ...60 Figure 10 2 Operating Instructions 10 Start up Installation Operation Manual ...
Страница 78: ...78 Figure 13 1 Wiring Diagram 13 Diagrams Installation Operation Manual ...
Страница 79: ...Figure 13 2 Ladder Diagram 13 Diagrams continued 79 Installation Operation Manual ...