Buhler GAS 222.21 Ex2, Installation And Operation Instructions Manual

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GAS 222.21 Ex2
7 Service and repair
This chapter contains information on troubleshooting and correction should an error occur during operation.
Repairs to the unit must be performed by Bühler authorised personnel.
Please contact our Service Department with any questions:
Tel.: +49-(0)2102-498955 or your agent
If the equipment is not functioning properly after correcting any malfunctions and switching on the power, it must be inspected
by the manufacturer. Please send the equipment inside suitable packaging to:
Bühler Technologies GmbH
- Reparatur/Service -
Harkortstraße 29
40880 Ratingen
Germany
Please also attach the completed and signed RMA decontamination statement to the packaging. We will otherwise be unable to
process your repair order.
You will find the form in the appendix of these instructions, or simply request it by e-mail:
service@buehler-technologies.com .
7.1 Troubleshooting
CAUTION Risk due to defective device
Personal injury or damage to property
a) Switch off the device and disconnect it from the mains.
b) Repair the fault immediately. The device should not be turned on again before elim-
ination of the failure.
Problem / malfunction Possible cause Action
No or reduced gas flow – Filter element clogged – Clean or replace filter element
– Gas circuit clogged – Clean sampling tube
– Ball valve closed – Open ball valve
– Blowback (optional) not responding – Check compressed air supply
– Check solenoid valve, check pneumatic con-
trol
No heat output – No/incorrect power supply – Check power supply
Condensation forming – Heater defective – Send in probe for repair
– Thermal bridges at the sampling point – Insulate to eliminate thermal bridges
7.2 Spare Parts and Accessories
Please also specify the model and serial number when ordering parts.
Upgrade and expansion parts can be found in our catalog.
Available spare parts:
Item no. Description
90 091 05 Measuring outlet seal
90 090 79 Flange seal DN65 PN6
90 090 42 Flange seal ANSI3” 150 lbs
90 090 68 Flat seal FD 40 WS
46 222 012 Seal kit for filter element and probe, material: Viton
46 222 024 Seal kit for filter element and probe, material: Perfluoroelastomer
46 222 010 Outlet filter, sintered stainless steel, material: Viton
Please see the accessories data sheet in the appendix for filter elements
20 Bühler Technologies GmbH BE460048 ◦ 08/2019