NTI TFTN - Specifications; High Altitude Operation

TFTN 085-199 Installation and Operation Manual
7
2.0 SPECIFICATIONS
Table 2-1 Specifications
DESCRIPTION
TFTN085
TFTN110
TFTN150
TFTN199
TFTN285
TFTN340
TFTN399
CSA Input Modulation
[MBH]
1
8.5 - 85
11 - 110
15 - 150
19.9 - 199
28.5 - 285
39.9 - 340
39.9 - 399
Heating Capacity [MBH]
1,2
79
101
138
184
263
324
380
Net AHRI Rating, Water
[MBH]
1,2
69
88
120
160
229
282
330
AFUE [%]
2
96
95
95
95
95
95.4
95.4
Water Connections, NPT
[in.]
1-1/4 (M)
1-1/4 (M)
1-1/4 (M)
1-1/4 (M)
1-1/4 (M)
1-1/2 (M)
1-1/2 (M)
Gas Connection, NPT [in.]
¾ (M)
¾ (M)
¾ (M)
¾ (M)
¾ (M)
¾ (M)
¾ (M)
Vent/Air-inlet Pipe Diameter
[in.]
3
2 or 3
2 or 3
2 or 3
3
3
4
4
Cabinet Height [in.]
34-1/8
34-1/8
34-1/8
34-1/8
34-1/8
36-1/2
36-1/2
Cabinet Width [in.]
19-7/8
19-7/8
19-7/8
19-7/8
21-3/8
25-1/4
25-1/4
Cabinet Depth [in.]
17-1/4
17-1/4
18-3/4
18-3/4
18-3/8
18-7/8
21-1/4
Approx. Boiler Weight
with Water [lbs]
107
107
122
140
180
250
250
Approx. Boiler Water
Content [Gallons]
1.4
1.4
2.0
2.8
4.9
7.1
6.4
Electrical Rating
120V / 1Ph / 60Hz / less than 12A
Notes:
1. Listed Input and Output ratings are at minimum vent lengths at an altitude of 0-2000ft. Numbers will be lower with
longer venting and/or altitudes greater then 2000ft.
2. Ratings based on standard test procedures prescribed by the U.S. Department of Energy; certified by AHRI.
Efficiency listed for models TFTN340 & TFTN399 represents Thermal Efficiency (AFUE is not applicable).
3. TFTN units require a special venting system, use only vent materials and methods detailed in these instructions.
2.1 High Altitude Operation
The TFTN is designed to operate at its maximum listed capacity in installations located at 0-2000ft above Sea Level. Since
the density of air decreases as elevation increases, maximum specified capacity should be de-rated for elevations above
2000 ft [610 m] in accordance with Table 2-2.
Table 2-2 De-rate % for High Altitudes
Elevations
2001 ft.
3000 ft.
4000 ft.
4500 ft.
5000 ft.
In Canada
1
de-rate by 10%
de-rate by 10%
de-rate by 10%
de-rate by 10%
de-rate % may vary
In USA
2
-
de-rate by 12%
de-rate by 16%
de-rate by 18%
de-rate by 20%
Notes:
1
Canada: Altitudes between 2000-4500 ft., de-rate by 10%. Consult local authorities for de-rating capacities for
altitudes above 4500 ft.
2
USA: De-rate capacity by 4% for every 1000 ft [305 m], if altitude is above 2000 ft.
Combustion – At elevations above 2000 feet, the combustion of the boiler must be checked with
a calibrated combustion analyzer to ensure safe and reliable operation. It is the Installers
responsibility to check the combustion and to adjust the combustion in accordance with section
9.0 GAS VALVE AND BURNER SET-UP. Failure to follow these instructions may result in property
damage, serious injury, or death.