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C55
Dimensions
Cabinet Height |
720mm |
Cabinet Width |
520mm |
Cabinet Depth |
320mm |
Perfect for larger properties or smaller commercial applications.
The Keston C55 provides the perfect solution for the larger property requiring an efficient and reliable heat only appliance. Designed to save space, the wall-mounted C55 delivers a fully modulating output from 12.5kW to 55kW. t is exceptionally easy to fit with prefabricated multiple boiler assemblies to assist a speedy installation. With front access the only requirement, the C55 is also easy to maintain.
Everything about the C55 is simple and straightfor ward. The design for example , incorporates a single pass heat exchanger, which avoids the complications that can be experienced with other condensing boilers.
Delivering total comfort, the C55 is exceptionally easy to use, making it a perfect solution for both new build and retrofit installations alike.
- High efficiency
- Perfect for the large domestic installation/light commercial setting
- Suitable for sealed or open vented systems
- Simple and easy to use
- Fast response
- Easy to install
- Zero compartment ventilation
- Two-stage frost protection for added peace of mind
- Complete siting flexibility thanks to a wide range of fluing options
- Weather compensation included – just add optional sensor
- Available in natural gas and LPG versions
- Two year parts and labour warranty
Performance Data |
Unit |
NG |
LPG |
|
Max. CH input (Gross CV ) |
kW |
56.5 |
53.4 |
|
Max. DHW input (Gross CV ) |
kW |
N/A |
N/A |
|
Max. DHW output to water |
kW |
N/A |
N/A |
|
Max. DHW output to water (80/60ºC flow/return) |
kW |
49.7 |
48.0 |
|
Max. output to water (50/30ºC flow/return) |
kW |
55.2 |
53.4 |
|
M in. output to water (80/60 flow/return) |
kW |
12.5 |
12.9 |
|
Max. domestic water flow rate (at 35ºC rise) |
l/min |
N/A |
N/A |
|
Specific DHW rate (EN625 30ºC rise) |
l/min |
N/A |
N/A |
|
Max. domestic hot water flow temp |
deg C |
N/A |
N/A |
|
Max. Gas Cons. After 10 mins |
l/s |
1.5 |
0.54 |
|
Ft3/hr |
190.19 |
68.65 |
|
|
m3/hr |
5.39 |
1.94 |
|
|
Max. operating flow temp |
deg C |
82 |
82 |
Installation Data |
Unit |
NG |
LPG |
|
Max. Press (sealed system) |
bar |
2.7 |
2.7 |
|
Inlet Gas Pressure |
mbar |
20.0 |
37 |
|
Electrical supply |
230V 50Hz |
230V 50Hz |
|
|
Power consumption (max) |
W |
260 |
260 |
|
Power consumption (standby) |
W |
8 |
8 |
|
Optimum flue gas CO2 level (at max CH rate, case on) |
% |
8.8 |
10.2 |
|
SEDBUK efficienc y |
90.2 |
92.2 |
|
|
NOx Class |
5 |
5 |
|
|
Safety valve |
bar/(ibf/sq in) |
N/A |
N/A |
|
Expansion vessel capacity |
litre |
N/A |
N/A |
|
Expansion vessel charge pressure |
bar/(ibf/sq in) |
N/A |
N/A |
|
DHW Max. Work ing Pressure |
bar/(ibf/sq in) |
N/A |
N/A |
|
GC Number |
41-930-19 |
41-930-10 |
|
|
CE PI Number |
87BN14 |
87BN14 |
|
Physical Data |
C55 & C55P |
||
|
Weight – full |
kg/(lbs) |
70.5 (157.8) |
|
|
Weight – empty |
kg(lbs) |
61.5 (135.8) |
|
|
Flow and return connection |
Rp 1”F |
||
| DHW and CWS connection |
N/A |
||
|
Gas connection |
Rp 0.75”F |
||
|
Condensate connection |
22mm plastic |
||
|
Safety valve discharge connection |
N/A |
||
|
IP rating |
IP20 (IPX0) |
||
Flue and air intake material: 50mm
|
|||
|
Max. Flue outlet length |
m |
15 |
|
|
Max. Total flue outlet and air intake |
m |
30 |
|
|
Flue and air intake material: 75mm composite flue |
|||
|
Max. Flue outlet length |
m |
45 |
|
|
Max. Total flue outlet and air intak e length |
m |
90 |