Westinghouse WBRU 100W Series, Инструкции по установке, запуску и обслуживанию

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WHL-032 REV. 6.2.16
36:UC
FAH(F)
FAH(F)
Allows the user to change the
unit
Allows the user to change the unit
Range: F or C CEL(C)
37:CM OFF CH Step Modulation
Allows the user to turn ON the step modulation, which regulates burner output
in six steps at one minute intervals. Step modulation will start at the last
modulation rate of the boiler and work up one minute at a time. Default: OFF
(Selection: OFF or ON).
38:dM OFF DHW Step Modulation
39:SA
AquA Aquastat
An aquastat or indirect sensor can be used when using an indirect water
heater. Range: AquA or SEnS. Default: AquA
NOTE : If an aquastat is used and SEnS is selected, the boiler will not operate
and Er.32 will display. If a sensor is used and AquA is selected, the boiler will
not operate. No error will display.
SEnS Sensor
40:BP OFF Boiler Pump Operation Mode
When turned “ON” the Boiler pump can operate while there is a DHW
demand. NOTE: This can be useful when the boiler is used to retrofit
an older unit and DHW piping is connected to the system loop.
Table 24
– Installer Mode Descriptions
H. ERROR MODE
The following screen will display when the boiler encounters an error.
The boiler control is able to record information about the boiler’s
condition at the time of the ten previous faults or errors. This information is available to view in the Installer Mode under the History
screen.
Figure 49
– Error Mode Screen
Error Code Description Possible Remedies
Er:10
Flame has
Extinguished 5 (Five)
Times
Press the Power button to clear the Error Code.
If Error happens again:
1. Monitor the gas pressure to the boiler
while in operation. Ensure pressure is between 3.5 and 14” WC.
2. Check gas valve wire. Ensure connection is secure.
3. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than
2.5DC before ignition, less than 2.5DC after ignition.
4. Check vent terminations. Ensure there are no blockages.
5. Assure that the flame is stable when lit.
6. If the problem persists, replace the main control.
Er:11
Ignition has Failed 5
(Five) Times
Press the Power button to clear the Error Code.
If Error happens again:
1. Monitor the gas pressure to the boiler
while in operation. Ensure pressure is between 3.5 and 14” WC.
Ensure there is no air in the gas supply line by bleeding the line.
2. Check gas valve wire. Ensure connection is secure. Ensure the gas valve is opening during ignition
trials (use a carbon steel screw driver to check magnet on the gas valve coil).
3. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than
2.5DC before ignition, less than 2.5DC after ignition.
4. Check igniter transformer for proper connection.
5. Clean the spark igniter with steel wool to remove oxides. Ensure proper separation (3-4 mm).
6. Replace the spark igniter if damaged.
7. Assure that the flame is stable when lit.
8. If the problem persists, replace the main control.
Er:16
Operating
Temperature Sensor
detects Water
Temperature Greater
than 203
o
F (95
o
C)
Press the Power button to clear the Error Code.
If Error happens again:
1. Check if dip switch High Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.
2. Check if CH inlet pipe is blocked. Ensure there is enough water flowing to the boiler.
3. Check Operating Temperature sensor at CH heat exchanger outlet. If resistance is zero, replace the
sensor.
4. Ensure the pumps are properly connected and circulating water.
5. If the problem persists, replace the main control.
NOTE: During the error state, the pump will operate to cool the boiler until temperature is
below 192
o
F.