Duo Solar - flamco Duo Instrucciones De Instalación Y Funcionamiento

1. General
Indirectly heated upright water heaters with up to two fi xed welded tube heat exchangers for
domestic water heating. Complete with thermal insulation, inspection port and Mg/impressed
current anode. Can be combined with all modern heating systems, with inspection port that can
also be used to connect additional heat sources (electric heating etc.). High quality glass lined
fi nish as per DIN 4753/3. Robust, installation friendly construction, equipped with thermometer
and port for temperature sensor/thermostat. Foot height adjustment as standard on all models
from 750 l, available on request for models with lower capacity.
Permissible system overpressure: Coiled pipe: 16 bar
Permissible system temperature: Coiled pipe: 110 °C (383 K)
Thermal insulation:
Side inspection port:
For further technical data see type plate.
2. Legend:
A Magnesium anode
B G1½ electric heating
element connection (for
Duo/Duo Solar 300 - 1000,
HLS Solar 400 - 500 only)
C Inspection port and/or
connecting fl ange for
additional heat sources.
Up to 400 l with G1½ fi tting
(except Duo HLS 300)
D Mains water
E Cold leg
F Hot leg
See the connection diagram for nominal connection sizes not indicated.
2
ENG Installation and operating instructions
Cylinder: 10 bar
(Duo/Duo Solar up to 500 l: coiled pipe 130 °C (403 K))
Cylinder: 95 °C (368 K)
Up to 500 l: Direct foam injection with foil jacket
From 750 l: Soft foam or fl eece insulation as
easy to install kit
120 - 300 l: G1½ fi tting
400 - 500 l: DN 110 (also Duo HLS 300)
From 750 l: DN 205
G Circulation
G½: Duo 120 - 300,

Duo Solar 200 - 300

R¾: Duo 400 - 1000,
Duo HLS 300 - 500,
Duo Solar 400 - 1000,
HLS Solar 400 - 500
R1: Duo 1500 - 2000
H Insulation
I
Hot potable water
J Thermostat (optional)
K Thermometer
L Vertical immersion pipe
M Vent/blow off
N Sensor connecting block
O Sensor/thermostat fi ttings
P Adjustable foot
Q Impressed current anode
R Second inspection port
DN 110 (from 1500 l)
S Solar hot leg
T Solar cold leg