LCD INSTALLATION AND OPERATION INSTRUCTIONS
Page 13
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, fi replace 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 modifi ée,
le système devrait étré modifi é 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
CAUTION: Improper piping of this boiler/water heater
will void the manufacturer's warranty and can cause
boiler failure resulting in fl ooding 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 fl ow 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.
NOTE: 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
Δ
T = 15 °F
Δ
T = 8.3 °C
Model
Flow
Rate
Pres.
Drop
Flow Rate
Pres. Drop
Number
GPM
Ft
L/s kPa
225
24.6 0.18
1.6 0.5
300
32.8 0.31
2.1 0.9
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
Δ
T = 20 °F
Δ
T = 11.1 °C
Model
Flow Rate Pres. Drop
Flow Rate Pres. Drop
Number
GPM
Ft
L/s
kPa
300
24.6 0.18
1.6 0.5
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
Δ
T = 25 °F
Δ
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
Δ
T = 30 °F
Δ
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
Δ
T = 35 °F
Δ
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 exchanger should be
considered.
