Connecting The Filter Gas Connections (Optional); Connecting The Moisture Detector (Option); Connecting The Heat Exchanger; Electrical Connections - Bühler technologies PKE 42-52 ΔT Instrucciones

Brief Instructions
PKE 42-52 ΔT
4 Installation and connection
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 dis-
tance 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 in-
adequate, we recommend aerating the cabinet or in-
stalling 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 addition-
ally labelled "IN".
If a large amount of condensate accumulates, we re-
commend using a condensate pre-separator before the
cooler. Our fluid separators with automatic condensate
drain, 11 LD spec., AK 20 V or model 165 SS, are suit-
able.
Glass vessels and automatic condensate drains are
available for draining condensate for external mounting
below the unit. When using automatic condensate
drains, the gas pump must be installed ahead of the
cooler 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 con-
densate traps or peristaltic pumps.
Connecting the condensate drains
Depending on the material, build a connecting line with
fittings and tubing or hose between the heat exchanger
and condensate drain. For stainless steel the condens-
ate 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").
Peristaltic pump (optional)
A peristaltic pump may also be installed a little away
from the cooler. The cooler has mounting points for in-
stallation. Coolers ordered with built-in peristaltic pumps
already have these installed and wired. Heat ex-
changers ordered at the same time are already installed
and connected to the peristaltic pumps.
NOTICE
Installing peristaltic pumps limits the maximum ap-
proved operating pressure in the system!
Operating pressure ≤ 0.5 bar
8
4.2.1 Connecting the filter gas connections
(optional)
The connections (DN 4/6 or 1/4" - 1/6") must be made
carefully and properly using suitable fittings (G 1/4"). An
arrow on the filter indicate the flow direction. The head
of the filters can be rotated to switch the inlet and outlet
sides. If the cooler has type AGF-PV-30(-F2) filters, the
tube connections between the heat exchanger and filter
are also installed.
When ordering the cooler with the option Filter without
moisture detector a bypass may be connected to the
filter head.
The filter head is intended for a G ¼ internal screw
thread which is plugged at the factory. To use it, un-
screw the plug and screw in a suitable screw connec-
tion. Pay attention to leaks.
NOTICE
Installing filters limits the maximum approved operat-
ing pressure in the system!
Operating pressure ≤ 2 bar

4.2.2 Connecting the moisture detector (option)

If the cooler is ordered with option moisture detector,
it is already installed inside the flow adapter or (with
option filter) inside the filter head.

4.2.3 Connecting the heat exchanger

The gas inputs are marked in red.
On glass heat exchangers the correct position of the
seal is important when connecting the gas lines. The
seal consists of a silicone ring with a PTFE sleeve. The
PTFE side must face the glass thread.
Be careful when connecting the glass heat exchanger
and only tighten the fittings by hand.

4.3 Electrical connections

WARNING
Hazardous electrical voltage
The device must be installed by trained staff only.
CAUTION
Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type
plate.
Connection via plug
The device is equipped with connectors according to
DIN 43650 for mains and status output. If the cables are
mounted properly, they cannot be interchanged. Please
make sure that the connectors are remounted correctly
after connecting the cable. The following figures show
the pin assignment with respect to the numbers printed
on the connector.
BX440013