Lochinvar CP-M Series, Installation, Commissioning & Maintenance Instructions

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12.4 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. The following figure explains which values can be shown in
the display. When no button is activated for 2 minutes the display will return to its status display.
FIGURE 12.4 MONITOR SCREENS
Pressing [◄] or [►] when the display shows the "operating screen" toggles through the screens below.
Pressing [ON/OFF, RESET, ENTER] or [MENU] at any time returns the display to the base menu.
SCREEN: 1
T 1 F l o w 1 2 3 , 9
o
C Temperature measured by the internal flow sensor.
T 2 R e t u r n 1 2 3 , 9
o
C Temperature measured 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 the sensor wires or the sensor itself is shorted.
SCREEN: 2
T 3 E x t e r n a l 1 2 3 , 9
o
C Temperature measured by the external sensor.
T 4 C a l o r i f i 1 2 3 , 9
o
C Temperature measured 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 the sensor wires or the sensor itself is shorted.
SCREEN: 3
T 5 O u t d o o r 1 2 3 , 9
o
C Temperature measured by the outdoor sensor.
T 6 F l u e 1 2 3 , 9
o
C Temperature measured 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 the sensor wires or the sensor itself is shorted.
SCREEN: 4
d T F l o w R e t u r n 1 2 3 , 9
o
C Temperature difference between internal flow & internal return sensor.
d T F l u e R e t u r n 1 2 3 , 9
o
C Temperature difference between flue gas & internal return sensor.
SCREEN: 5
d T E x t R e t u r n 1 2 3 , 9
o
C Temperature difference between external & internal return (ΔT LLH).
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 output control or "Setpoi" = temperature setpoint 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 (Internal 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 Pump 2 (Calorifier pump) 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 "HOTWATER".
SCREEN: 1 0
P u m p 3 S y s t e m O f f Pump 3 (System pump) On or Off.
h h : m m D D / M M / Y Y Y Y D a y Time & Date: hh=hour; mm=minutes; DD=date; MM=month; YYYY=year; Day