Buhler EGK 4S, Installation And Operation Instructions Manual

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EGK 4S
4 Installation and connection
4.1 Installation site requirements
The unit is intended for use in enclosed areas in a 19” rack, wall-mounting, or as a table-top unit. Adequate protection from the
weather must be provided when used outdoors.
Install the unit leaving enough room below the cooler to discharge the condensate. Leave room above for the gas supply.
Be sure to maintain the approved ambient temperature. Do not obstruct the convection of the cooler. The vents must have
enough room to the next obstacle. The distance must especially be a minimum of 10 cm on the air outlet side.
Ensure adequate ventilation when installing in enclosed housings, e.g. analyser cabinets. If the convection is inadequate, we re-
commend aerating the cabinet or installing a fan to lower the inside temperature.
4.2 Installation
Run the gas supply to the cooler with a downward slope. The gas inputs are marked in red and additionally labelled "IN".
If a large amount of condensate accumulates, we recommend using a condensate trap with automatic condensate drain. Our
condensate drains, 11 LD spec., AK 20 V, or model 165 SS, are suitable.
Glass vessels and automatic condensate drains are available for draining condensate for external mounting below the unit.
When using automatic condensate drains, the sample gas pump must be installed upstream of the cooler (pressure operation)
to ensure proper function of the condensate drain.
If the sample gas pump is located at the cooler outlet (suction operation), we recommend using glass condensate traps or peri-
staltic pumps.
Connecting the condensate drains
Depending on the material, build a connecting line with fittings and tubing or hose between the heat exchanger and condens-
ate drain. For stainless steel the condensate drain can be suspended directly to the connecting tube, for hoses the condensate
drain must be secured separately using a clamp.
The condensate drain can be mounted directly to the heat exchanger.
Condensate lines must always be installed with a slope and a minimum inside diameter of DN 8/10 (5/16”).
The DTV heat exchanger cannot be operated in conjunction with an automatic condensate drain.
Peristaltic pump (optional)
A peristaltic pump may also be installed a little away from the cooler. A mounting angle is available for installing up to 4 pumps
directly below the cooler. Two M8 rivet nuts in the cooler bottom are designated for mounting the angle.
NOTICE
Installing peristaltic pumps CPsingle / CPdouble limits the maximum permissible oper-
ating pressure in the system!
Operating pressure ≤ 1 bar
7 Bühler Technologies GmbH BE450004 ◦ 10/2018