WRDB - GB
4
Information about the heater
1
Information about the heater
1.1
Category, type and approval no.
1.2
Technical identification code
W
Water gas heater
R
Proportional power adjustment
D
Digital display
11
Capacity (l/min)
-2
Version 2
B
Electronic ignition powered by 1.5 V batteries
23
Indicator number of natural gas H
31
Indicator number of LPG
S...
Country code
1.3
Supplied materials
• Gas heater
• Attachment elements
• Connection elements
• Heater documentation
• Two 1.5 V batteries type R
• Rubber holders (LPG heaters).
1.4
Description of the heater
Operating convenience, as the heater is ready to oper-
ate by simply pressing a switch.
• Heater for wall-mounting
• Ignition by electronic device triggered when the
water valve opens
• Gauge to display temperature, burner operation and
malfunctions
• Temperature sensor to monitor the water tempera-
ture at the heater output
• Great savings in comparison with conventional hea-
ters, due to the possibility of power adjustment and
no permanent pilot flame
• Natural gas/LPG burner
• Semi-permanent pilot burner which only functions
during the period between the opening of the water
valve and the ignition of the main burner
• Heat exchanger without tin/lead covering
• Water automatic in fibreglass-reinforced polyamide,
100% recyclable
• Automatic adjustment of the water flow by means of
a device which permits a constant flow to be maintai-
ned in spite of variable pressure supplies
• Gas flow adjustment proportional to the water flow to
maintain a constant high temperature.
• Safety devices:
– Ionisation probe to check for accidental extinction
of the burner flame
– Combustion gases monitoring device which turns
off the heater in case of inadequate combusted
gas evacuation conditions
– Temperature limiter which prevents overheating of
the heat exchanger
1.5
Special accessories
• Conversion kit from natural gas to butane/propane
and vice-versa.
Model
WRD 11/14/18 -2 B...
Category
II
2H3+
Type
B
11BS
Tab. 1
W
R
D
11
-2
B
23
31
S...
W
R
D
14
-2
B
23
31
S...
W
R
D
18
-2
B
23
31
S...
Tab. 2
0464
