9
2596151-C_EN_2010_Condair GS EGMS_IOM
System overview
3.2
Description of the system
With the DVGW-certified exhaust gas management system (1) the exhaust gases from the Condair GS
gas-fired steam air humidifier can be discharged via the exhaust air discharge unit of an air conditioning
system into the open air. To do this the Condair GS exhaust gases are fed through the exhaust gas
pipe at negative pressure to the exhaust gas distribution pipe (12) into the exhaust air unit of the air
conditioning system and there diluted by the exhaust air flowing past and discharged.
The system is monitored by the differential pressure switch (6) and the flow monitor (10) that are con-
nected in series to the safety chain connections on the Condair GS connection terminal.
The differential pressure switch (6) monitors the minimum negative pressure and the flow monitor the
minimum air speed. If one or both values fall below this minimum value the safety chain is disconnected
and the Condair GS switched off.
The maximum permissible negative pressure is monitored by the Condair GS's flame monitor and
exhaust gas temperature gauge.
3.3
System requirements
In order to ensure that the DVGW-certified exhaust gas management system works properly obey the
following instructions:
– The Condair GS steam air humidifier
must be in the same room
as the air conditioning system
exhaust air installation.
– In order to guarantee a sufficient air after flow there must be an opening in the room to the outside
air with a minimum free cross section area in accordance with the table below.
Condair
GS 23
Condair
GS 45
Condair
GS 65
Condair
GS 90
Condair
GS 130
Condair
GS 195
Condair
GS 260
Min. free cross section area
cm
2
50
88
120
150
225
350
460
– The
exhaust gas distribution pipe must be installed upstream of the exhaust air fan.
With this
there must be a
minimum distance of 1 m
from the exhaust air fan.
– The
outlets
of the exhaust gas distribution pipe must point
in the direction of flow
.
– A
throttle valve
and a
draught limiter
must be installed
.
– A
differential pressure switch
and a
flow monitor
to monitor the operation
must be installed
.
– The permissible exhaust gas pipe lengths must be at least 4 m and no more than 10 m.
– The control unit must be switched in such a way that the Condair GS connection is shut down first
before the air conditioning system is switched off. Otherwise the steam air humidifier will be shut off
as a safety measure (error message).
– At air temperatures of <20 °C in the exhaust air system a drain outlet with inclines on all sides must
be provided in the AC system in the section downstream of the exhaust gas distribution pipe that
must be connected via a trap and an open discharge hopper to the waste water pipe in the building
(to discharge any condensate).
