Service Handbook OEB/OES/OGB/OGS
AS/11-2011 / Item 7016567 6_04e_Steam Generator drain pump_b.doc
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6.4 Steam Generator drain pump (only OEB and OGB)
Check:
Error code E 34 (DE-pump failure) after the automatic steam generator rinsing
is finished.
Water leaking from the pump.
Safety Advice:
When working on the unit after draining the steam generator, make sure
that the main power supply is disconnected (An all-pole isolation switch
with a minimum contact opening of 3 mm must be located close to the
unit - on site) and ensured against switching on again.
Confirm that the power supply has been disconnected!
This work can only be performed by a CONVOTHERM-trained electrician.
Attention: Danger of scalding on unit drain and when removing the
pump, if steam generator is manually drained.
Instructions – 1. Draining the steam generator:
1. To drain the steam generator with the help of the steam generator pump,
Do the following:
Press the temperature + Time
+ CTC keys for 3 seconds at
the same time
Using the selector knob,
select Service point d14 for
"Testing the Steam generator
pump"
With the arrow key, spring
right to the service value
With the selector knob, switch
pump on and off. *
* Depending on the size of the unit, the pump must be switched on more
often, until the steam generator is empty. This is why we recommend:
- that you remain by the unit and
- pay attention to the draining noise of the pump.
The sound changes when the steam generator is empty. If the steam
generator is empty, the pump must not be switched on again!
2. Make sure that the main power supply is disconnected and ensured against
switching on again. Confirm that the power supply has been disconnected.
r01 [ 22°C ] CTC1
r02 [ 23°C ] CTC2
r03 [ 23°C ] CTC3
d13 [ 0 ] Test MV DE
d14 [ 0 ] Test Pump
d15 [ 0 ] Test MV Demoi.
d13 [ 0 ] Test MV DE
d14 [ 0 ] Test Pump
d15 [ 0 ] Test MV Demoi.
d13 [ 0 ] Test MV DE
d14 [ 1 ] Test Pump
d15 [ 0 ] Test MV Demoi.
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