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Options/Features Setting Procedures:
•
Set Appliance Temperature Set-Point Value
•
Set Appliance Switching Differential Value
•
Select Appliance Post-Circulate Time
•
Set Appliance Circulating Pump Mode
•
Check Appliance Cycle Count
•
Control the water temperature in a storage tank
Green Status Lights:
LED 1: Call for Heat
LED 2: Flow Switch
LED 3: Pressure Switch
LED 4: Ignitor Current
LED 5: Gas Valve
LED 6: Flame Sensor
Red Fault Lights:
LED 7: Ignition Fail
LED 8: Circulate Failure
LED 9: Blower Failure
LED 10: Blocked Flue
LED 11: Gas Pressure Failure
Water Temperature Set Lights:
LED A: Inlet Water Temperature*
LED B: Outlet Water Temperature
LED C: Inlet/Outlet Differential Temperature
LED D: Set-Point Temperature
LED E: Outlet/Set-Point Differential Temperature
*Defaults to water temperature sensor when third
temperature probe (Tank Probe) is used.
TEMPERATURE SET-POINT ADJUSTMENT
PROCEDURE FOR APPLIANCE
Setting this temperature determines where the appliance will shut
down. It is controlled by the outlet/ECO temperature probe on the
outlet of the unit. In most cases, it should be set approximately 30
degrees (17°C) above the thermostat or tank probe temperature
setting. The controller has a standard programmable temperature
set-point range of 110°F (43°C) to 240°F (115°C). The user can
easily change the temperature set-point at any time by using the
following procedure. In all cases, you must apply input power to
the controller to perform any programming operations. The factory
default setting is 180°F (82°C).
To change or view the current programmed temperature set-point
value:
1. Press the SELECT push-button on the display board until both
the Set-Pt LED (LED D, see figure 21) and Outlet Water
Temperature LED (LED B, see figure 21) are illuminated.
2. The LED display will show the current set-point temperature.
3. Press and hold the ADJUST push-button. The displayed
temperature will either increase or decrease. To alternate
between increasing or decreasing the temperature, release
then press and hold the ADJUST push-button.
4. When the desired set-point temperature is reached, release
the ADJUST push-button.
5. Press the ENTER/RESET push-button once, this enters the
selected set-point temperature into controller memory.
6. The appliance will now control the temperature to the desired
set-point value.
If the ADJUST push-button is held down long enough, the set-
point will reach 110°F [43°C], the minimum value (or 240°F [115°C],
the maximum value) and stop. At this point, if the desired setting
is not obtained, release the ADJUST push-button and depress it
again. The set-point value will now restart at 110°F [43°C] (240°F
[115°C]) and once again increase (decrease) in value for as long
as the ADJUST push-button is pressed.
NOTE: The boiler must complete a full cycle in order for the
new setting to take effect. If the unit is turned off prior to a
complete cycle, the setting will be lost and the previous setting
will remain in effect.
NOTE: If the tank probe is connected to the system, the
appliance Set-Point temperature will only act as a back-up to
the system temperature, which will be controlled through the
tank probe. (See Tank Probe Sensor/Heating System
Temperature Sensor Section of manual). If a tank probe is
being utilized (LW Models), it is recommended that the appliance
set-point be at least 30°F [17°C] above the tank probe set-
point. This is also true if using an alternate 24 Volt control for
tank or loop temperature regulation.
NOTE: Do not use the appliance Set-Point temperature as the
system temperature regulation device in hydronic (LB)
applications. An external 24-Volt temperature control located
in the return loop of the closed water system should be used
for system regulation. This device should be attached to the
red/green wires in junction box at the rear of the unit. The
appliance temperature setting should only be used as a limit
control for the system.
SWITCHING DIFFERENTIAL ADJUSTMENT
PROCEDURE FOR APPLIANCE
To facilitate proper operation and maximize appliance performance,
the control has a programmable operating switching differential or
“hysteresis” about the set-point. This means a call for heat will
become active when the water temperature measured at the outlet
temperature sensing probe drops to the set-point value minus the
switching differential value. The burner will remain on until the
water temperature measured at the outlet temperature probe
reaches the set-point value. The switching differential value is fully
programmable from 5°F (3°C) to 50°F (28°C) using the push-
button(s) located on the Display Board.
To change or view the current programmed switching differential:
1. Press the SELECT push-button on the display board until the
Set-Pt Diff LED (LED E, see figure 21) is illuminated.
2. The LED display will show the current switching differential.
3. Press and hold the ADJUST push-button. The displayed value
will either increase or decrease. To alternate between
increasing and decreasing the switching differential, release
then press and hold the ADJUST push-button.
4. When the desired switching differential is reached, release
the ADJUST push-button.
5. Press the ENTER push-button once, this enters the selected
switching differential value into controller memory.
6. The appliance will now control temperature utilizing the desired
switching differential value.
If the ADJUST push-button is held down long enough, the
switching differential setting will reach 5°F (3°C), the minimum
Содержание LB 1000
Страница 22: ...22 FIGURE 16 CONNECTION DIAGRAM ...
Страница 23: ...23 FIGURE 17 SCHEMATIC DIAGRAM ...
