Pcb Dip Switch Settings - Mitsubishi Electric QAHV-N560YA-HPB Installation & Operation Manual
Hot water heat pump unit
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Also See for QAHV-N560YA-HPB:
- Data book (46 pages) ,
- Service handbook (176 pages) ,
- Setup manual (62 pages)
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3Press SWP1 or SWP2 to display the operation result (flow rate characteristic) corresponding each flow rate code
'dxx' in Table 1 and write them down.
Table 1
Pump output opening/water flow rate
adjust valve opening
Flow rate (pump output opening 16%)
Flow rate (pump output opening 27%)
Flow rate (pump output opening 100%)
<Check result>
Pump output opening/water flow rate
adjust valve opening
Flow rate (pump output opening 16%)
Flow rate (pump output opening 27%)
Flow rate (pump output opening 100%)
4Check the following.
↓ Check the checkbox.
□ All places with flow rate valve opening 1000 through 100 are 2 L or above?
If 2 L/min or below, air may not be bled out. Perform an air bleeding operation and water flow rate
adjustment operation again.
□ When there are multiple units, the values of the same pump output opening and the same valve opening
are not greater or less than those for other units by 10% and 2 L/min or more.
(In multiple-unit system, perform a water flow rate adjustment operation at the same time.)
□ All the values (item codes d01 through d09) are not "0" when the pump output opening is 16%. (Not
whole air is bled out.)
(Note 1) Change SW2-9 and SW2-3 as a stopgap procedure as shown in the table below, and then turn the power
on.
When startup operation has not completed
When startup operation has completed
(Note 2) The table below shows the water flow rate adjustment operation status in 4 figures when the PCB DIP
switch is set as shown in Note 3.
Water flow rate adjustment operation status
(Note 3) PCB DIP switch settings
SW2
-10
-5
ON
OFF
Close <------------------ Water flow rate adjust valve opening ------------------> Open
1600
1400
d01
d02
d10
d11
d19
d20
Close <------------------ Water flow rate adjust valve opening ------------------> Open
1600
1400
Multiple unit change-over switch
Not completed
Completed
In operation
SW3
-6
-7
-8
-9
OFF
OFF
ON
ON
1200
1000
800
600
d03
d04
d05
d06
d12
d13
d14
d15
d21
d22
d23
d24
1200
1000
800
600
Local/internal change-over switch
SW2-9
OFF
-
Display
- - n g
- - - g
- i n g
-10
OFF
36
400
200
100
d07
d08
d09
d16
d17
d18
d25
d26
d27
400
200
100
SW2-3
ON
-
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