Mitsubishi Electric e Series Service Handbook page 42

[ II Restrictions ]
4. Installing the strainer and flow switch
(1) Installing the strainer
Install a strainer on the inlet pipe near the unit to filter out suspended solids and prevent clogging or corrosion of the
heat exchanger.
Install a strainer in a way that allows for easy access for cleaning, and instruct the user to clean it regularly.
Operating the units with a clogged strainer may cause the units to make an abnormal stop.
Select a location to install a strainer, taking into consideration the installation angle, insulation thickness, and
maintenance space.
* The dimensions given below indicate the amount of space necessary when screwing in a Y-shaped strainer.
Rc2
195
Option Parts : YS-50A*
* YS-50A is for standard piping type.
Inside header type will need to supply a
strainer (20 mesh or its equivalent) for
100A piping to the site.
(2) Installing a flow switch
Install a flow switch that meets the following specifications on the water pipe.
Connect the flow switch to the flow switch contact on the unit.
Minimum flow rate= 7.7 m³/h (128 L/min)
Unit usage range (water flow rate): 7.7 - 25.8 m³/h
HWE1417B
Recommended torque :
200±20 (N·m)
- 33 -
Pipe
Y-shaped strainer
(field-supplied)
Inlet
Min. 150
Sample installation
<Unit: mm>
Unit
GB