LCD Series Finned Copper Tube Gas Boilers & Water Heaters – Boiler Manual
16
e) Test for spillage at the draft hood relief opening after 5 minutes
of main burner operation. Use the flame of a match or candle,
or smoke from a cigarette, cigar or pipe.
Faire fonctionner le brûleur principal pendant 5 min ensuite,
déterminer si le coupe-tirage déborde à l'ouverture de décharge.
Utiliser la flamme d'une allunette ou d'une chandelle ou la
fumée d'une cigarette, d'un cigare ou d'une pipe.
f) After it has been determined that each appliance remaining
connected to the common venting system properly vents when
tested as outlined above, return doors, windows, exhaust fans,
fireplace dampers and any other gas-burning appliance to their
previous condition of use.
Une fois qu'il a été d éterminé, selon la métode indiquée ci-
dessus, que chaque appareil raccordé au système d'évacuation
est mis à l'air libre de façor adéquate. Remettre les portes et les
fenêtres, les ventilateurs, les registres de cheminées et les appareils
au gaz à leur position originale.
g) Any improper operation of the common venting system should
be corrected so the installation conforms with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54. When resizing any portion
of the common venting system, the common venting system
should be resized to approach the minimum size as determined
using the appropriate tables in Appendix F in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 and or CAN/CGA-B149
Installation Codes.
Tout mauvais fonctionnement du systéme d'évacu-tion commun
devrait étré corrigé de façor que l'installation soit conforme au
National Fue Gas Code, ANSI Z223.1/NFPA 54 et (ou) aux
codes d'installation CAN/CGA-B149. Si la grosseur d'une section
du système d' évacuation doit étré modifiée, le système devrait
étré modifié pour respecter les valeurs minimales des tableaux
pertinents de l'appendice F du National Fuel Gas Code, ANSI
Z223.1/ NFPA 54 et (ou) des codes d'installation CAN/
CGA-B149.
GENERAL PIPING REQUIREMENTS
Improper piping of this boiler/water heater will void
the manufacturer's warranty and can cause boiler failure
resulting in flooding and extensive property damage!
Excessive water hardness causing scaling in the copper
heat exchanger tubes is NOT covered under the
manufacturer’s warranty. Excessive pitting and erosion
of the internal surface of the copper heat exchanger
tubes is NOT covered under the manufacturer’s
warranty if the result of high water flow rates, see Table
7. Return water temperatures below
125°F
,
52°C
will
result in heat exchanger damage from excessive
condensation voiding the manufacturer’s warranty, see
Primary/Secondary Piping Figure 11.
Shut off valves and unions should be installed at the
inlet and outlet connections of the boiler/water heater
to provide for isolation of the unit should servicing
be necessary.
Table 7 Temperature Rise Table
∆T = 15°F
∆T = 8.3°C
Model
Flow Rate
Pres. Drop
Flow Rate
Pres. Drop
Number
GPM
Ft
L/s
kPa
400
43.7
0.70
2.8
2.1
600
65.6
1.84
4.1
5.4
750
82.0
3.32
5.2
9.8
∆T = 20°F
∆T = 11.1°C
Model
Flow Rate
Pres. Drop
Flow Rate
Pres. Drop
Number
GPM
Ft
L/s
kPa
400
32.8
0.41
2.1
1.2
600
49.2
1.08
3.1
3.2
750
61.5
1.95
3.9
5.7
1050
86.1
5.16
5.4
15.2
1200
98.4*
8.14
6.2
24.0
1480
121.4*
7.94
7.7
23.4
∆T = 25°F
∆T = 13.9°C
Model
Flow Rate
Pres. Drop
Flow Rate
Pres. Drop
Number
GPM
Ft
L/s
kPa
400
26.2
0.27
1.7
0.8
600
39.4
0.71
2.5
2.1
750
49.2
1.29
3.1
3.8
1050
68.9
3.41
4.3
10.1
1200
78.7
5.38
5.0
15.9
1480
97.1
5.25
6.1
15.5
1650
108.2
7.02
6.8
20.7
∆T = 30°F
∆T = 16.7°C
Model
Flow Rate
Pres. Drop
Flow Rate
Pres. Drop
Number
GPM
Ft
L/s
kPa
600
32.8
0.51
2.1
1.5
750
41.0
0.92
2.6
2.7
1050
57.4
2.44
3.6
7.2
1200
65.6
3.84
4.1
11.3
1480
80.9
3.75
5.1
11.0
1650
90.2
5.01
5.7
14.8
1970
107.7
8.75
6.8
25.8
2300
125.7*
12.45
7.9
36.7
∆T = 35°F
∆T = 19.4°C
Model
Flow Rate
Pres. Drop
Flow Rate
Pres. Drop
Number
GPM
Ft
L/s
kPa
600
28.1
0.38
1.8
1.1
750
35.1
0.69
2.2
2.0
1050
49.2
1.83
3.1
5.4
1200
56.2
2.89
3.5
8.5
1480
69.3
2.82
4.4
8.3
1650
77.3
3.77
4.9
11.1
1970
92.3
6.58
5.8
19.4
2300
107.8
9.36
6.8
27.6
**Flow exceeds recommended maximum use a greater temperature
rise or consult manufacturer. Cupro-nickel heat exchanger should be
considered.
