Strebel S-CB Px 120, Installation Operating & Maintenance Manual

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S-CB Px 120 Manual 40
10.4. Monitor screens
During normal operation and stand-by, the “ ◄ ” and “ ► ” buttons can be used to show some boiler information,
including measured temperatures, settings and data. In the following graphs is explained which values can be
shown in the display. When no button is activated for 2 minutes the display will return to its status display.
Pressing [ ◄ ] or [ ► ] while being at the "operating screen" toggles through the screens below.
When pressing [ON/OFF, RESET, ENTER] or [MENU] at any time the display returns to the base menu.
SCREEN: 1
T 1 F l o w 1 2 3 , 9 ° C
Measured value by the internal flow sensor.
T 2 R e t u r n 1 2 3 , 9 ° C
Measured value by the internal return sensor.
O p e n
Shown when the controller does not detect this sensor.
S h o r t e d
Shown when sensor wires or sensor itself is shorted.
SCREEN: 2
T 3 E x t e r n a l 1 2 3 , 9 ° C
Measured value by the external sensor.
T 4 C a l o r i f i 1 2 3 , 9 ° C
Measured value by the calorifier sensor.
O p e n
Shown when the controller does not detect this sensor.
S h o r t e d
Shown when sensor wires or sensor itself is shorted.
SCREEN: 3
T 5 O u t d o o r 1 2 3 , 9 ° C
Measured value by the outdoor sensor.
T 6 F l u e 1 2 3 , 9 ° C
Measured value by the flue gas sensor.
O p e n
Shown when the controller does not detect this sensor.
S h o r t e d
Shown when sensor wires or sensor itself is shorted.
SCREEN: 4
d T F l o w R e t u r n 1 2 3 , 9 ° C
Temperature difference between internal flow & return.
d T F l u e R e t u r n 1 2 3 , 9 ° C
Temperature difference between flue gas & internal
return.
SCREEN: 5
Temperature difference between external & internal
return (
Δ T LLH).
d T E x t R e t u r n 1 2 3 , 9 ° C
S i g n a l P o w e r
External supplied 0-10 Volt dc signal.
S e t p o i
"Power" = power input control or "Setpoi" = set point
control.
SCREEN: 6
F a n s p e e d 9 9 9 9 r p m
Actual fan speed in rpm.
F a n s p e e d 1 0 0 %
Actual fan speed % of maximum allowable fan speed.
SCREEN: 7
F l a m e s i g n a l 1 0 0 µ A
Flame signal given in µA.
W a t e r P r e s s u r 1 , 0 b a r
Shows water pressure when sensor is connected.
SCREEN: 8
P u m p 1 H e a t e r O f f
Pump 1 (HEATER PUMP) on or off.
P u m p 1 S i g n a l 1 0 0 %
Modulating signal Pump 1 in (%).
SCREEN: 9
P u m p 2 C a l o r i O f f
Shows when the calorifier pump is "ON" or "OFF".
3 - w a y V a l v e H e a t i n g
Signal to the 3-way valve: "HEATING" or "HOTWA-
TER".
SCREEN: 10
P u m p 3 S y s t e m O f f
Shows when the system pump is "ON" or "OFF".
h h : m m D D / M M / Y Y Y Y D a y
hh=hour; mm=minutes; DD=day; MM=month;
YYYY=yr; day of the week