GMV5 D.C INVERTER MULTI VRF                                                                                              SERVICE MANUAL 
379 
 
2. Installation in the Electric Control Cabinet 
 
The PCD3 CPUs and the module holders can be snapped onto the 35mm top-hat rail according to 
DIN EN60715 TH35 (formerly DIN EN50022). (Remember: the PCD2 needs two hop-hat rails). 
Mounting the PCD3 on the top-hat rail: 
(1) Press the bottom of the housing onto the mounting surface. 
(2) Press upwards against the top-hat rail 
(3) Press the top of the housing against the mounting surface and snap into place. 
(4) Push the housing down onto the top-hat rail to ensure that it is secure. 
Removal:   
 
To removal the housing, push upwards and pull out. 
(1) Insert the module into the appropriate module location and press down to the bottom of the CPU 
or module holder housing.   
(2) For security, a guide rail is provided to prevent the module being inserted the wrong way round. 
In awkward  positions, the modules  can  also be secured with  a  screw 3X8mm which is commercial 
available from the hardware store. 
 
3. Required Installation Space in the Electric Control Cabinet: