De Dietrich EA 29 Manual Del Usuario página 10

English
See also:
- Technical instructions for the boiler
- Domestic hot water calorifier instructions
- Control panel instructions
- Burner instructions
Fill, bleed and check the watertightness of the primary circuit in
accordance with the boiler's assembly instructions:
Unsrew the automatic bleed valve plug.
Turn the anti-thermosiphon valve to open (O).
Unstick the load pump in necessary:
To do this, unscrew the guard plug at the front of the pump.
Insert a screwdriver into the slot in the pump spindle and turn the
spindle several times to the right and left.
Carry out the bleed:
- If the boiler is fitted with the automatic bleed algorithm: Turn the
boiler on. A 1-minute bleed cycle is carried out automatically.
Repeat this operation 3 or 4 times depending on the capacity of
the DHW tank by turning the boiler on and off.
- If the boiler is not fitted with the automatic bleed algorithm: Carry
out successive cycles manually, leaving the DHW tank pump on
(2 seconds) and off (3 seconds), until the primary circuit has been
fully bled.
Top up the primary circuit with water.
Turn the anti-thermosiphon valve to automatic (A).
Screw the automatic bleed plug back in.
10
Commissionning
During the heating process, a certain amount of water may
flow through the valve or safety unit; this is caused by
water expansion. This phenomenon is completely normal
and must in no event be hindered.
Bleed the installation again after it has been in operation for
some time.
EA 29 18/10/06 - 94858436 - 8999-4055-B