Buhler GAS 222.20 DH, Assembly, Installation And Operation Instructions

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GAS 222.20 DH
4.4 Installing the downstream filter
NOTICE
The downstream filter and the O-ring for the handle must be inserted prior to first star-
tup.
Operating without downstream filter prohibited!
O-ring handle
Attach an O-ring suitable for the expected ambient temperature to the handle.
Attach the downstream filter to the handle. Then carefully insert the handle with
filter in the gas probe and turn 90° to secure.
Verify the handle is seated correctly. When seated correctly it locks onto the filter
housing.
4.5 Insulation
On heated probes completely insulate any exposed flange areas and, if applicable, the connection piece to absolutely prevent
thermal bridges. The insulating material must meet the application requirements and be weatherproof.
4.6 Connecting the Gas Line
The sample gas line must be carefully and properly connected using a suitable fitting.
This table provides an overview of the sample gas probe connections:
Probe
GAS 222
Reservoir
PAV01
Ball valve
pneumatic drive
Control valve
3/2-way solenoid
valve
Connecting flange
1)
DN65/PN6/
DN3“-150
2)
Sample gas inlet G3/4
Sample gas outlet NPT 1/4
Blowback connection G3/8
Test gas connection
1)
Tube Ø6 mm
Tube Ø1/4
2)
Filling port NPT 1/4
Condensate G1/2
Bypass NPT 1/4
Control air G1/8 G1/4
NPT 1/4
Tab. 1: Gas Probe Connections (Varies by Model)
1)
Varies by version.
2)
Only GAS 222.xx ANSI and GAS 222.xx AMEX
WARNING Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
8 Bühler Technologies GmbH BE460045 ◦ 10/2019