Worcester 28CDi RSF User Manual

The data plate is fixed to the inner casing cover. Check data plate
to ensure appliance has been adjusted for supply gas.
3. Technical Data
4
AVAILABLE PUMP HEAD
BOILER OUTPUT HEAD MIN. FLOW RATE
TEMPERATURE RISE
ACROSS HEATING
kW Btu/h Metres Feet L/min. Gal/Min. FLOW AND RETURN
9.0 (30,700) 4.2 13.6 11.7 2.57 11°C (20°F)
24.0 (81,900) 2.0 6.6 28.5 6.3 12°C (22°F)
Table 3
SPECIFICATIONS
CENTRAL HEATING FLOW FITTING 22mm Compression
CENTRAL HEATING RETURN FITTING 22mm Compression
COLD WATER MAINS INLET FITTING 15mm Compression
DOMESTIC HOT WATER OUTLET FITTING 15mm Compression
GAS INLET FITTING Rp
3
⁄4 inch
PRESSURE RELIEF VALVE DISCHARGE FITTING G
1
⁄2 inch
OVERALL HEIGHT (including flue turret) 1000mm (39.4 inches)
CASING HEIGHT 850mm (33.5 inches)
CASING WIDTH 450mm (17.7 inches)
CASING DEPTH 360mm (14.2 inches)
WEIGHT(including water) 45 kg
INSTALLATION WEIGHT 42 kg
PACKAGED WEIGHT 48 kg
PRIMARY WATER CAPACITY 2.0 litres (0.45 galls)
MAXIMUM COLD SUPPLY PRESSURE 10 Bar (150 psi)
MINIMUM COLD SUPPLY PRESSURE (working) for max. hot water flow 1.2 bar
MINIMUM COLD SUPPLY PRESSURE (working) to operate appliance 0.7 bar
MAXIMUM CENTRAL HEATING FLOW TEMPERATURE Nominally 82°C (180°F)
OUTPUT TO DOMESTIC HOT WATER Modulating 9.0 to 28 kW
OUTPUT TO CENTRAL HEATING Modulating 9.0 to 24 kW
MAXIMUM DOMESTIC HOT WATER FLOW RATE (from the appliance) Nominally 10 litres/min
EQUIVALENT DOMESTIC HOT WATER FLOW RATE TO GIVE A TEMP RISE Nominally 13.5 litres/min
OF 30°C (SPECIFIC RATE)
NoX Classification Class 3
Table 4
NOMINAL BOILER RATINGS (10 Minutes After Lighting)
BOILER ADJUSTED FOR G20 (Natural Gas)
OUTPUT INPUT
BURNER SETTING
GAS RATE
PRESSURE
kW Btu/h kW Btu/h m bar. in. wg. m
3
/h ft
3
/h
9.0 (30,700) 11.4 (38,897) 1 0.4 1.2 42.5
24.0 (81,888) 27.0 (92,124) 8.8 3.5 2.9 102.7
28.0 (95,536) 31.5 (107,478) 12.1 4.8 3.3 116.9
BOILER ADJUSTED FOR G31 (Propane)
9.0 (30,708) 11.4 (38,897) 3.8 1.5 0.5 17.7
24.0 (81,888) 27.0 (92,124) 24.3 9.6 1.1 38.9
28.0 (95,536) 31.5 (107,478) 35.5 14 1.3 46.0
Table 1
FLUE DETAILS
HORIZONTAL FLUE mm inches
WALL HOLE DIAMETER 110 4.25
STANDARD FLUE – MINIMUM LENGTH 100 4.0
STANDARD FLUE – MAXIMUM LENGTH 650 25.6
EXTENDED FLUE – MAXIMUM LENGTH 3000 118.1
Table 2.

Worcester 28CDi RSF Specifications

General

Brand	Worcester
Model	28CDi RSF
Category	Boiler
Language	English