Technical Data - Worcester 24CDi Installation And Servicing Instructions

3. Technical Data

Table 2.
HORIZONTAL FLUE
WALL HOLE DIAMETER
STANDARD FLUE (From flue outlet centre)
EXTENDED FLUE
FLUE ASSEMBLY DIAMETER
Table 3
BOILER OUTPUT HEAD
kW Metres
9.0 4.2
24.0 2.0
27.5 1.9
Table 4
CENTRAL HEATING FLOW - COMPRESSION
CENTRAL HEATING RETURN - COMPRESSION
COLD WATER INLET - COMPRESSION
DOMESTIC HOT WATER FLOW - COMPRESSION
GAS INLET
RELIEF VALVE DISCHARGE
CASING HEIGHT
CASING WIDTH
CASING DEPTH
WEIGHT - DRY
WEIGHT - MAXIMUM INSTALLATION
WEIGHT - PACKAGED
Table 1
NOMINAL BOILER RATINGS
(10 minutes after lighting)
MAX. OUTPUT (DHW)
MAX. INPUT (net)
BURNER PRESSURE
GAS RATE
MAX. OUTPUT (CH)
MAX. INPUT (net)
BURNER PRESSURE
GAS RATE
MIN. OUTPUT (DHW)
MIN. INPUT (net)
BURNER PRESSURE
GAS RATE
FLUE DETAILS
MAXIMUM LENGTH
PUMP HEAD
MIN. FLOW RATE
L/min.
11.7
24CDi 20.5
28CDi 28.5
35CDi II 28.5
MECHANICAL SPECIFICATIONS
Note: Gross Heat Input x 0.901 (NG) or x 0.922 (propane) = Net Heat Input.
BOILER ADJUSTED FOR
24CDi 28CDi
kW 24.0
kW 27.0
mbar 14.8
3
m /h
kW 24.0
kW 27.0
mbar 14.8
3
m /h
kW 9.0
kW 11.4
mbar 1.5
m 3 /h 1.2
EXTERNAL FIX
INTERNAL FIX
MIN UNCUT LENGTH
MAXIMUM LENGTH
24CDi
28CDi and 35CDi II
FLOW/ RETURN
DIFFERENTIAL
°C
11°C
12.5°C
12°C
12°C
22mm
22mm
15mm
15mm
Rp 3 ⁄
4
15mm Copper Tube
24/28CDi 35CDi II
850mm 850mm
450mm 500mm
360mm 370mm
45kg 49kg
42kg 46kg
48kg 53kg
4
BOILER ADJUSTED FOR
G20 (Natural Gas)
24CDi 28CDi
35CDi II
28.0 35.3 24.0
31.5 39.2 27.0
15.5 13.5 35.5
2.9 3.3 4.15 1.13
24.0 27.5 24.0
27.0 30.1 27.0
10.8 8 35.3
2.9 2.9 3.19 1.13
9.0 9.5 9.0
11.4 11.9 11.4
1.0 0.9 5.4
1.2 1.26 0.46
mm
110
150
425
725
4000
3000
100
G31 (Propane)
35CDi II
28.0 35.3
31.5 39.2
35.5 34.7
1.3 1.6
24.0 27.5
27.0 30.1
24.3 21.3
1.3 1.23
9.0 9.5
11.4 11.9
3.8 3.1
0.5 0.49