Specifications

6.1 EFFECTIVE DIMENSIONS
The units are delivered fully assembled, tested and packed on a
timber base with shockproof edges and protected by heat-shrunk
plastic film. On reception and after unpacking, check the equipment for
damage. For transport purposes, refer to the weights and dimensions
given below.
6.2 MAXIMUM OPERATING CONDITIONS
Maximum service pressure (tank full of water)
- Primary circuit: 3 bar
- Secondary circuit: 10 bar
Test pressure
(tank full of water)
- Primary circuit: 4.5 bar
- Secondary circuit: 13 bar
Operating temperature
- Maximum temperature: 90° C
6 TECHNICAL SPECIFICATION
200
570
C
D
E
542
160
118 158
B
A
Fig. 17: Effective dimensions
6.3 DOMESTIC HOT WATER PERFORMANCE
6.4 BOILER PERFORMANCES
10
Dimensions G20 G25 G30/P30
A 1697 1697 1697
B 1460 1460 1460
C 154 154 154
D 360 390 390
Kg 712 712 712
Domestic hot water performances G20 G25 G30 P30
Operating at 80° c
Peak delivery at 40° C (6T = 30° C) litres/10’ 266 339 339 339
Peak delivery at 40° C (6T = 30° C) litres/60’ 820 1025 1151 1161
Continuous delivery 40° C (6T = 30° C) litres/h 665 823 975 986
Operating at 80° c
Initial heating time minutes 40 29 24 24
After draw-off of 140 l à 45° C minutes 16 12 10 10
Specific delivery litres/minutes 11 14 14,5 14,5
Results obtained without a thermostatic mixing valve and with water supply at 10° C
G20 G25 G30 P30
Input kW 26,1 33,1 39,0 40,0
Output kW 23,2 28,7 34 34,4
Combustion efficiency % 89 89 89 89,5
Maintenance loss at 60° C as % of rated value % 1,3 1 0,8 0,87
Mass rate of combustion products g/sec. 20 25 30 30
Average CO
2
% 99910
Total capacity litres 178,5 167,5 167,5 167,5
Primary circuit capacity litres 114,5 87,5 87,5 87,5
Heating connection Ø 1” 1” 1” 1”
Hot water connection Ø 3/4” 3/4” 3/4” 3/4”
Hot water tank heat exchange surface m
2
1,59 2,46 2,46 2,46
Weight empty Kg 154 186 186 186
Chimney connection B11 BS B11 BS B11 BS B11 BS