Pre-mix Condensing Boiler RinNova Cond 28S | Biasi Caldaie
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RinNova Cond 28S Pre-mix Condensing Boiler

Pre-mix Condensing Boiler RinNova Cond 28S
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    MODULATION 1:5

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    28 kW

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    WATER FOR HEATING

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    DOMESTIC HOT WATER

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    16,5 L / min (DHW)

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    METHANE / LPG

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    ENERGY RATING

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    HIGH LEVEL OF SILENCE

Technical data Documentation Request info

RinNova Cond completes the range of BIASI pre-mix condensing boilers, perfect for radiator systems and suitable for radiating systems with mixing units.

RinNova Cond is a compact condensing boiler, which ensures high efficiency, low energy consumption and respect for the environment.
It is available in the versions for heating and DHW production, with a heat output of 24, 28 and 32 kW.

Main features

  • Primary condensing exchanger in stainless steel with steel coating to offer maximum resistance to corrosion
  • Pre-mix burner in stainless steel (NOx class 6)
  • Modulation 1:5 Methane and also LPG
  • DHW exchanger with stainless steel plates
  • 7-litre expansion vessel
  • High-efficiency pump with low energy consumption
  • Integration with BIASI solar systems with a solar kit
  • Digital pressure reading display
  • Provision for remote control and external probe

Compact brass hydraulic unit. Delivery unit with motorised diverter, by-pass and system filling valve built in.
ErP pump with manual pump release on return unit.

Control panel operation

  • Summer/winter/off selector
  • Heating temperature regulator
  • DHW temperature regulator
  • Digital pressure reading
  • Screen display of DHW and heating temperature
  • Fault diagnostics, lockout conditions and fault log display

The display works in the following modes:

  1. INFO
    Information on the operating status and alarm history
  2. FREE PROGRAMMING
    Parameters can be programmed to adapt boiler/system and user SET
  3. INSTALLER PROGRAMMING
    Generator parameters
  4. SUPPORT PROGRAMMING
    Authorised service centre parameters

Remote controls

The RinNova Cond range has two remote class V commands, in the Basic and Top versions, with a weekly programmable thermostat with up to 4 programmable time periods with independent temperatures. All the information on the boiler display can also be viewed remotely.

Technical data

Nominal heating/DHW heat input
kW
25,0 / 29,0
Minimum heat input for heating/DHW
kW
5,1
Maximum usable heating/DHW power 60°/80°C *
kW
24,5 / 28,4
Minimum usable heating/DHW power 60°/80°C *
kW
4,8
Maximum usable heating/DHW power 30°/50°C **
kW
26,9 / 31,1
Minimum usable heating/DHW power 30°/50°C **
kW
5,3
Quantity of condensate at Q.nom. 30°/50°C (in heating mode) **
l/h
4,6
Quantity of condensate at Q.min. 30°/50°C (in heating mode) **
l/h
0,8
Condensate pH
4,0
Nom. efficiency 60°/80°C *
%
98,0
Min. efficiency 60°/80°C *
%
94,1
Nom. efficiency 30°/50°C **
%
107,4
Min. efficiency 30°/50°C **
%
104,9
Efficiency at 30 % load **
%
108,9
Energy efficiency ηs
%
93
Thermal losses at the flue with burner in operation
Pf (%)
1,8
Thermal losses at the flue with burner turned off ΔT 50°C
Pfbs (%)
0,2
Thermal losses to the environment through the casing with the burner in operation
Pd (%)
0,2
NOx class
6
Weighted NOx [Hs] ***
mg/kWh
28
Minimum/maximum heating temperature ****
°C
25 / 85
Minimum/maximum heating pressure
bar
0,3 / 3,0
Available heating head (at 1000 l/h)
mbar
385
Expansion tank capacity (total/usable)
l
7
Minimum/maximum DHW temperature
°C
30 / 60
Minimum/maximum DHW pressure
bar
0,3 / 10
Maximum flow rate (Δt = 25 K) / (Δt = 35 K)
l/min
16,5 / 11,5
Specific DHW flow (Δt = 30 K) *****
l/min
13,8
Voltage/power draw at nominal heat input
V~/ W
230 / 114
Power draw at minimum heat input
W
14
Power draw in stand-by
W
3,3
Ingress protection
IPX5D
Minimum/maximum flue gas temperature#
°C
56 / 85
Minimum/Maximum flue gas mass flow rate #
kg/sec
0,0025 / 0,0129
Minimum/maximum air mass flow rate #
kg/sec
0,0024 / 0,0124
Max. length of coaxial flue outlet (Ø 60/100 mm / Ø 80/125 mm)
m
10 / 12
Max length of twin flue exhaust (Ø 80+80 mm)
m
40
Height x Width x Depth
mm
700 x 400 x 300
Weight
kg
31,3
Water content of the boiler
l
2,0
Fuel
Metano (G20) - Propano (G31)

* With return water temperatures that do not allow condensation.
** With return water temperatures that allow condensation.
*** With coaxial flue outlet 60/100 L 0.9 m and G20 natural gas.
**** At minimum usable power.
***** With reference to EN 625.
# Values relate to tests with 80 mm 1 + 1 twin flue and G20 natural gas.

Documentation

Depliant
Manual
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