Technical information

21
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Duo-tec Combi GA
Clearances
copper tails
Above Casing 175mm Min
Below Casing 150mm Min*
Front
450mm Min
(For Servicing)
Front
5mm Min
(In operation)
L.H. Side 5mm Min
R.H. Side 5mm Min
*This is MINIMUM recommended dimension. Greater
clearance will aid installation and maintenance.
NO
x
Class
5
Flow Rates
(24)
l/min
(28)
l/min
(33)
l/min
(40)
l/min
DHW Flow
@ 30
o
CRise 10.9 12.9 15.3 18.3
DHW Flow
@ 35
o
CRise 9.8 11.5 13.5 16.4
Min Working
DHW Flow 2 2 2 2
IMPORTANT: Where Low Flow Taps or Fittings
are intended to be used in the DHW system it is
strongly recommended that the DHW ow rate
DOES NOT fall below 2.5l/min.This will ensure
reliable operation of the DHW function.
Weights
(24/28 model)
Packaged Boiler 41.5kg
Installation Lift 36 kg
(33 model)
Packaged Boiler 43.5 kg
Installation Lift 38 kg
(40model)
Packaged Boiler 44.5 kg
Installation Lift 39 kg
Temperatures
C.H. Flow Temp (adjustable)
25°C to 80°C max (± 5°C)
D.H.W. Flow Temp (adjustable)
35°C to 60°C max (± 5°C)
dependent upon ow rate
Central Heating Primary Circuit
Pressures bar
Safety Discharge 3
Max Operating 2.5
Min Operating 0.5
Recommended Operating Range 1-2
DHW Circuit
Pressures bar
Max Operating 8
Min Operating 0.15
Expansion Vessel - (For Central
Heating only. Integral with appliance)
bar
Min Pre-charge 0.5
(24 &
28)
litre
(33 &
40)
litre
Max Capacity of CH 100 100
Primary Water Content
of Boiler
2.5 2.8
MX8013 - Technical pocket guide DL v14_post proof.indd 21 30/08/2012 14:29