R3400 Technical data - Rendamax
R3400 Technical data - Rendamax
R3400 Technical data - Rendamax
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<strong>Rendamax</strong><br />
Operating mode (cover closed)<br />
With the cover closed and by using the rotational switch (pos. No. 2) clockwise or anti-clockwise<br />
the boilers’ operating mode can be set.<br />
The operating modes are:<br />
K standby the boiler switched off but frost protection is active<br />
F automatic the boiler can operate in heating or direct hot water mode<br />
t summer mode the boiler will only react to a direct hot water demand<br />
W1 manual, low capacity the boiler will run at low capacity<br />
W2 manual, high capacity the boiler will run at full capacity<br />
Information mode<br />
With the cover open and by turning the rotational switch (Pos. No 5) clockwise or anti-clockwise it<br />
is possible to read out certain information from the boiler management unit.<br />
There are 10 possibilities. An arrow at the bottom of the LCD display will indicate which parameter<br />
has been selected. The following parameters are readable:-<br />
Parameter<br />
P1 actual flow temperature<br />
P2 actual direct hot water temperature (if used)<br />
P3 setpoint temperature<br />
P5 actual outside temperature (if used)<br />
P8 temperature at the low velocity header (if used)<br />
P9 actual boiler capacity<br />
P10 only for trained service engineers<br />
Summary of input and output indications (cover open)<br />
Input indications:<br />
H Flame Ionisation detected<br />
SW Water flow switch in operating position<br />
DW APS in operating position<br />
RT Boiler enabled by BMS<br />
Bus Data-bus detected<br />
Output indications:<br />
r Power to Main Gas Valve<br />
u Power to Ignitor<br />
s Control signal to fan<br />
Z Power to Primary Boiler Pump<br />
t Power to Primary DHW Pump<br />
Setting the flow temperature for Central Heating (cover open)<br />
Only applicable to boilers without weather compensated flow temperature or a 0-10 Volt control<br />
signal.<br />
N.B. Only applicable if outside temperature compensation or a 0-10 V signal is not used.<br />
- Open the lid (the arrow at the bottom of the LCD display indicates parameter P1)<br />
- Press the combined Reset/Programming key (pos. 3). The LED will light. Turn the rotary switch<br />
(pos.5) until the desired water flow temperature has been reached<br />
- Press the combined Reset/Programming key. The LED will go out<br />
- Close the cover.<br />
N.B. The new temperature setting will only become active once the Reset/Programming key has<br />
been released.<br />
46 Doc890/3456CV02B
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