SECTION 1
POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
PAGE 2
DERWENT COMPACT PLUS – CONDENSING
Table 3 – Technical Data
Model: Derwent Compact Plus Condensing
4/55
6/90
8/125
Number of Sections
4
6
8
CE Certification Number
0063B03166
Gas Category
I2H
Nominal Heat Input 100%
kW
54
90
125
Nominal Heat Input 80%
kW
43.2
72
100
Nominal Heat Output 100% load 60/80°C
kW
51.4
85.9
118.6
Nominal Heat Output 100% load 30/50°C
kW
55.5
92.5
127.9
Nominal Heat Output 80% load 60/80°C
kW
41
69
95
Nominal Heat Output 80% load 30/50°C
kW
45.3
75.7
104.4
Fuel Consumption 100% load (NG)
m³/hr
5.7
9.5
13.2
Fuel Consumption 80% load (NG)
m³/hr
4.6
7.6
10.6
Nominal Gas Inlet Pressure (NG)
mbar
20
Burner Manifold Pressure 100% (NG)
mbar
16.5
Burner Manifold Pressure 80% (NG)
mbar
10.5
Burner Injector Size (NG)
mm
3.2
Maximum Design Pressure
bar
3
Minimum Operating Pressure
bar
0.5 (0.1 available on request)
CO2 NG 100% load
%
7.5 to 8.5
6.5 to 7.5
7.5 to 8.5
CO2 NG 80% load
%
6.5 to 7.5
6.5 to 7.5
6.5 to 7.5
Nominal Flue Connection Size
Ømm
180
200
250
Flue Gas Volume
m³/hr
95
175
235
Flue Draught Requirements
mm
0-5
Flue Gas Temperature 60/80°C (100%)
°C
63
73
80
Flue Gas Temperature 30/50°C (100%)
°C
45
57
65
High Level Natural Ventilation to BS6644
cm²
270
337.5
416.25
Low Level Natural Ventilation to BS6644
cm²
540
675
832.5
Mechanical Inlet to BS6644
m³/sec
0.059
0.099
1.375
Water Flow Rate at 11°C
∆
T at 100%
lit/sec
1.21
2.01
2.78
Min Water Flow Rate at 20°C
∆
T at 100%
lit/sec
0.66
1.11
1.53
Hydraulic Resistance at 11°C
∆
T
kpa
30.6
48.97
66.32
Cold Feed Size to BS6644 or BS5440
Minimum Bore
mm
19
25
Safety Valve Size to BSS6644 or BS5440
Minimum Bore
mm
25
32
Safety Valve Size to BS6644 or BS5440
Nominal Size
mm
19
Maximum Flow Temperature
°C
90
Minimum Return Temperature
°C
30
Air Pressure Switch 100%
Pa
50-64
400-427
400-427
Air Pressure Switch 80%
Pa
20-34
150-174
150-174
Dry Weight
Kg
252
345
437
Water Content
Lit
28.3
39
54.3
Power Requirements
230V 50Hz 1Ph – Isolator and 6.3A Fuse
Required
Summary of Contents for Derwent Compact Plus
Page 1: ...MAY 2004 ...
