Radiant SFK 55 - 2.2.7. Technical Data

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SFK 55 - RAD - ING - Manual - 1512.2_CSA_TTS
2. MAINTENANCE
SUPPORT CENTER
2.2.7. TECHNICAL DATA
Model SFK 55
Gas category Natural Gas (Gas A) /
Propane (Gas E)
Maximum nominal heat capacity BTU/hr (kW) 187667 (55)
Minimum nominal heat capacity BTU/hr (kW) 18766 (5.5)
Noise factor dB 52.4
Combustion data
Fumes temperature at nominal heat capacity 176-140°F
(80-60°C)
°F (°C) 150.80 (66)
Fumes temperature at minimum heat capacity 176-140°F
(80-60°C)
°F (°C) 131.00 (55)
CO
2
at nominal heat capacity - Gas A % 9.6 - 9.2
CO
2
at minimum heat capacity - Gas A % 9.3 - 8.9
CO
2
at nominal heat capacity - Gas E % 10.7 - 10.3
CO
2
at minimum heat capacity - Gas E % 9.70
Fumes mass at nominal heat capacity - Gas A g/s 22.0
Fumes mass at minimum heat capacity - Gas A g/s 2.20
Fumes mass at nominal heat capacity - Gas E g/s 22.5
Fumes mass at minimum heat capacity - Gas E g/s 2.20
Domestic circuit
Adjustable domestic temperature °F (°C) 104 - 140 (40 - 60)
Maximum pressure for domestic circuit PSI (bar) 150 (10.34)
Minimum pressure for domestic circuit PSI (bar) 10 (0.69)
Specific capacity in continuous service - ΔT 54°F (30°C) GPM (litres/min) 7.08 - (26.8)
Specific capacity in continuous service - ΔT 77°F (43°C) GPM (litres/min) 5.1 - (19.3)
Minimum flow rate GPM (litres/min) 0.66 (2.5)
Dimension (Water heater casing size)
Width in (mm) 16.14 (410)
Depth in (mm) 19.09 (485)
Height in (mm) 25.19 (640)
Gross weight lb (kg) 110.23 (50)
Water connections
Cold water inlet Ø 3/4" NPT
Hot water outlet Ø 3/4” NPT
Gas Ø 3/4” NPT
Recirculation mode Ø 3/4” NPT
Condensate drain Ø 0.78 in (20mm)
Flue Systems
Flue outlet fitting in (mm) 3 (80)
Air intake fitting in (mm) 3 (80)
Max discharge length - Hor. coaxial Ø2.36”/3.94” (60/100mm) ft (m) 3.28 (1)
Max discharge length - Hor. coaxial Ø3”/5” (80/125mm) ft (m) 16.40 (5)
Max discharge length Ø2”/2” (Ø50/50 mm) - Hor Split with
frequency 255 Hz
(1)
ft (m) 18.04 (5.5)
MAINTENANCE