Master module for process control for R744 refrigeration plants
HCO2-G4_R.1.0.9_V8.1.4_PI_2018-12_EN
3
Subject to technical changes
HCO
2
-G4
1.4
Installation
WARNING
DANGER OF DEATH FROM ELECTRIC SHOCK AND/OR FIRE!
•
Switch off the power to the entire plant before installing. Otherwise, a mains voltage and/or exter-
nal voltage may still be present even if the control voltage is switched off.
Installing in the MGR131/141 and MGR231/241 installation frame
The entire system must be free of voltage.
1. Push the device into the installation frame up to the stop.
The device snaps in between the spring clips.
Fig. 2: Installing in the MGR131/141 installation frame
NOTICE
•
Please refer to the product information for the MGR131/MGR141 and MGR231/241 installation
frames.
Installing the device with ZEM type screw-in clamps
The entire plant must be free of voltage.
1. Insert the device up to the stop in a mounting cutout in the switch cabinet door.
2. Fix the device to the switch cabinet door using the ZEM type screw clamps.
Fig. 3: Installing in a mounting cut-out with ZEM clamps
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