Mitsubishi Electric CRHV-P600YA-HPB Service Handbook page 39

[ 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
(2) Installing a flow switch
Install a flow switch that meets the following specifications on the heat source fluid pipe.
Connect the flow switch to the flow switch contact on the unit.
Minimum flow rate= 2.0 m³/h (33.3 L/min)
Unit usage range (water flow rate): 2.0 - 16.0 m³/h
18
16
14
12
10
8
6
4
2
0
-20 -10
-4 14
When using brine as heat source fluid
5. Water pipe hole size and location
HWE1312A
Recommended torque :
200±20 (N·m)
Flow Range
Counter
Parallel
0 10 20 30 40 50
Heat source inlet (ºC)
32 50 68 86 104 122
Heat source inlet (ºF)
183
118 123
Y-shaped strainer
Inlet
Sample installation
Flow Range
18
16
14
12
10
8
6
4
2
0
-20 -10 0 10 20
Heat source inlet (ºC)
-4 14 32 50 68
Heat source inlet (ºF)
When using water as heat source fluid
HOT WATER OUTLET
R2B
HOT WATER INLET
R2B
HEAT SOURCE FLUID
INLET R2B
HEAT SOURCE FLUID
OUTLET R2B
Heat source side pipe connection is nomal condition.
(Heat source fluid inlet is upper and outlet is lower.)
- 32 -
<Unit: mm>
Pipe
(field-supplied)
Unit
Min. 150
Counter
Parallel
30 40 50
86 104 122
GB