Installation at the installation site
26
Installation instructions
VITOBLOC 200 EM-530/660
version
SCR
58
41436
GB
6.5
Condensate drain
No condensate arises from the Vitobloc 200 EM-
530/660 CHP unit (versions SCR and SCR-ready).
However, condensate must be able to drain from the
external exhaust gas heat exchanger.
DANGER
Observe trap height!
Risk of poisoning through escaping
carbon monoxide
Trap heights MUST be observed.
Install a trap in the condensate drain with a height of
at least 250 mm so that no exhaust gas can escape
(Fig. 14). Otherwise, there is a risk of poisoning
through escaping carbon monoxide (CO).
PLEASE NOTE
Check to ensure the trap arrangement
is correct!
Material damage due to excessive
exhaust gas temperature
Check the temperature before each
start-up.
Check the water level before each
start-up.
Connect the condensate line by means of an anti-
vibration, flexible connector (e.g. silicone hose) to
both the CHP unit and the silencer or exhaust
pipe/chimney.
The condensate drain pipe must be checked regularly
for obstructions and to see if there is a sufficient
hydraulic seal.
General requirements
The exhaust gas condensate is very acidic with a pH
value of 2 to 3. Consequently the condensate may
only be discharged into the drainage system (never
freely to the outside) in accordance with DWA
regulations Code of Practice DWA-A 251
"Condensates from condensing boilers" and following
consultation with the local water authority.
Use of neutralising systems with chalk granulate that
changes colour subject to the concentration is
recommended for environmental reasons.
(1) Install an unrestricted drain on the condensate
drain connector above a trap (U-bend).
(2) Use a stainless steel or plastic, acid-resistant,
DN 25 condensate pipe.
(3) Hydraulic seals must be designed so that the
water level can be checked and topped up.
(4) Do not attach any pipework to the CHP unit!
(5) Install a silicone hose as an anti-vibration
element
directly
downstream of the CHP unit.
(Included in standard delivery)
(6) Since oil vapour in the exhaust gas can
condense at low exhaust gas temperatures,
provide an oil separator in the condensate line
on site.
Fig. 14
Condensate connection diagram
2 Exhaust pipe
3 Secondary exhaust gas silencer
(option)
4 Condensate drain
5 Flexible connector
(transparent silicone hose
for fill level checks)
6 Gully with hydraulic seal
1
Axial expansion joint
2
Exhaust pipe
3
Secondary exhaust gas
silencer (option)
4
Condensate drain
5
Flexible connector
(transparent silicone hose
for fill level checks)
6
Gully with hydraulic seal
7
External exhaust gas heat
exchanger
