RBI Spectrum Series Installation And Operation Instructions Manual page 10

Table 7 Temperature Rise Table – 2 Pass Headers
ΔT = 10°F
Flow Pres.
Rate Drop
Model
Number
GPM
100 16.4 0.05
150 24.6 0.13
200 32.4 0.27
250 40.5 0.48
300 49.8 0.82
350 58.1 1.23
400 66.4 1.77
Note: Unit equipped with 4-pass headers, see Table 8.
Table 8 Temperature Rise Table – 4 Pass Headers
ΔT = 10°F
Flow Pres.
Rate Drop
Model
Number
GPM
100 16.4 0.34
150 24.6 0.94
200 32.4 1.92
250 40.5 3.46
300 49.8* 5.89
350
400
Note: Unit equipped with 2-pass headers, see Table 7.
*Flow exceeds recommended maximum use a greater temperature rise or consult manufacturer. Cupro-nickel heat exchanger
should be considered.
10
F F Finned copper tube gas boilers & water heaters – Boiler Manual Fi d b
ΔT = 5.5°C
Flow Pres. Flow
Rate Drop Rate
Ft L/s kPa GPM
1.0 0.1
1.6 0.4
2.0 0.8 16.2
2.6 1.4 20.3
3.1 2.4 24.9
3.7 3.6 29.1
4.2 5.2 33.2
ΔT = 5.5°C
Flow Pres. Flow
Rate Drop Rate
Ft L/s kPa GPM
1.0 1.0
1.6 2.8
2.0 5.7 16.2
2.6 10.2 20.3
3.1 17.3 24.9
29.1
See Note
33.2
b il & h
ΔT = 20°F ΔT = 11.1°C
Pres. Flow Pres.
Drop Rate Drop
Ft L/s kPa
— — —
— — —
0.07 1.0
0.13 1.3
0.23 1.6
0.34 1.8
0.49 2.1
ΔT = 20°F ΔT = 11.1°C
Pres. Flow Pres.
Drop Rate Drop
Ft L/s kPa
— — —
— — —
0.53 1.0
0.96 1.3
1.63 1.6
2.47 1.8
3.54 2.1 10.4
B il M l
ΔT = 30°F
Flow Pres. Flow
Rate Drop Rate
GPM Ft
— — —
— — —
0.2 — —
0.4 — —
0.7 16.6 0.10
1.0 19.4 0.20
1.4 22.1 0.20
ΔT = 30°F
Flow Pres. Flow
Rate Drop Rate
GPM Ft
— — —
— — —
1.6 — —
2.8 — —
4.8 16.6 0.80
7.3 19.4 1.20
22.1 1.70
ΔT = 16.7°C
Pres.
Drop
L/s kPa
— —
— —
— —
— —
1.0 0.3
1.2 0.5
1.4 0.7
ΔT = 16.7°C
Pres.
Drop
L/s kPa
— —
— —
— —
— —
1.0 2.3
1.2 3.4
1.4 4.9