Unical RTN 24 User Manual

5
Installation info
1
TECHNICAL FEATURES AND DIMENSIONS
fig. 1
1.2 - DIMENSION
A
420
345
800
1.1 - TECHNICAL FEATURES
IVEN 04 is a wall hung gas boiler with built-in
atmospheric gas burner; it is available in the
following versions:
24 with 24 kW output;
28 with 28 kW output;
C with instantaneous D.H.W. production;
R- for heating only;
TN with natural draught open chamber;
TFS with forced draught room sealed com
bustion chamber;
All versions have electronic ignition.
Models in the IVEN
04 series are the following:
IVEN 04 CTN 24 F open boiler, with electronic
ignition and instantaneous D.H.W. production;
IVEN 04 RTN 24 F open boiler, with electronic
ignition, for heating only;
IVEN 04 CTFS 24 F forced draught room sea-
led boiler, with electronic ignition and instan-
taneous D.H.W. production;
IVEN 04 RTFS 24 F forced draught room sea-
led boiler, with electronic ignition for heating
only;
IVEN 04 CTFS 28 F forced draught room sea-
led boiler with electronic ignition and instanta-
neous D.H.W production;
IVEN 04 RTFS 28 F forced draught room sea-
led boiler with electronic ignition for heating
only;
IVEN 04 is supplied with all control and sa-
fety features according to the latest laws in
force.
The main technical features of the IVEN 04
boilers are summarised below.
• Bithermal, copper, high performance heat
exchanger;
• Electronic ignition;
• Electronic flame modulation;
• Minimum output control;
• Electronic control of ignition ramp;
• Anti-freeze function;
• Pump anti-jamming function;
• Pump over run function;
• High limit thermostat (95°C);
• Three-speed circulating pump;
• Expansion vessel;
• Automatic air vent;
• C.H. system water filling valve except Fren-
ch, Belgium and England version) ;
• Safety pressure switch for low water level;
• Priority flow switch for D.H.W.;
• Tap water flow rate restrictor set at 10 li-
tres/min, for 24 kW boilers (brown) and 12
l/min, for 28 kW boilers (pink)
Note: This 10 (12) l/min flow rate
is guaranteed with a upstream
pressure of 2 bar. If the upstream
pressure is much higher than 2
bar, then it is possible to reduce the flow
rate to 10 (12) l/min by rotating clock-wise
the screw ‘’A’’. On the contrary, if the up-
stream pressure is lower than 2 bar it is
possible to reach the flow rate of 10 (12) l/
min by rotating counter clock-wise the
screw ‘’A’’. If, also in this case the flow
rate of 10 (12) l/min is not reacheable then
the flow restrictor can be removed from its
seat.
• Control panel with IP 44 insulation protec-
tion
• Temperature and pressure gauge;
• Warning light for: presence of power, re-
quest for heating, burner in operation, lock
out;
• ON-OFF switch;
• D.H.W. temperature selector (35/57°C) for
IVEN 04 CTN 24 F-CTFS 24 F-CTFS 28 F
+ antifrost position;
(25/57°C) for IVEN 04 RTN 24 - RTFS 24 -
set off only if arranged with storarage tank
• C.H. temperature selector (45/78°C) + sum-
mer/winter position.
• Reset button;
• Chimney sweeper button
• Mounting jig
• Mounting frame with valves (opt.)
• Flue gas antispillage thermostat 75°C
(IVEN 04 TN)

Unical RTN 24 Specifications

General

Brand	Unical
Model	RTN 24
Category	Water Heater
Language	English