SM YAZE218 1-A.2 GB | 11—3
11—CONTROL SYSTEM
For Model Q (YBDE018/YAZE218)
Total Detected IDU Code (Sum of IDU code)
Detected IDU units
Minimum Allowed
Maximum Allowed
3
2
2
Whenever the sum of the IDU code is outside the range the unit will be forced to Idle Mode and
report: “Mismatch between IDU and ODU models”.
If the unit is forced to Idle Mode, then it will keep checking this condition (the indoor total
capacity test) in order to prevent system latch up. Once the condition is ne, the fault will be
cleared and the unit will proceed to normal operation.
11.3.1.1.3
Model Plug & Indoor Capacity Test
This test is performed for both single split channel and multi split channel:
Test
How to check?
Error to report?
System Action
(ODU Mode)
Jumper is inserted/DIP
is con gured
ODU model is 0 (
zero
).
“Missing ODU
con
fi
guration”
Force to Idle mode.
Jumper/DIP is not
de ned in the software
ODU model is not Q.
“Unde
fi
ned ODU model”
Force to Idle mode
IDU-ODU capacity
group mismatch
When ODU model is Q,
and the capacity group
is not allowed.
“Mismatch between
IDU and ODU models“
Except for ITU mode,
Force to Idle mode
The following combinations show the allowed and not allowed capacity group:
ODU Model
Communication channel
Is it allowed capacity group?
Indoor Capacity
0
1
2
3
4
Q
(YBDE018/YAZE218)
Single- Non Hydro
No
No
No
Yes
No
Single- Hydro
No
No
No
No
No
Com Channel 1
Yes
Yes
No
No
No
Com Channel 2
Yes
Yes
No
No
No
Com Channel 3
No
No
No
No
No
Com Channel 4
No
No
No
No
No
Notes
1. The outdoor will keep establishing normal communication with the indoor or DMSMP.
2. The outdoor will show diagnostics normally.
3. The SB LED will keep ON as long as the power is on.
4. Once the unit is forced to Idle due to either of the above, it will keep checking the above
items, until the system is recovered.
11.3.2 Communication with Indoor Units
11.3.2.1 Communication Failures De nition
Two types of communication failures are diagnosed. The communication failures are checked
separately for each IDU channel.
Summary of Contents for YAZE218
Page 11: ...4 1 SM YAZE218 1 A 2 GB 4 OUTLINE DIMENSIONS 4 OUTLINE DIMENSIONS 4 1 Indoor Unit HJD009 012 ...
Page 25: ...6 2 SM YAZE218 1 A 2 GB 6 OPERATING CURVES 6 1 2 Heating Technician Mode ...
Page 26: ...SM YAZE218 1 A 2 GB 6 3 6 OPERATING CURVES 6 1 3 Tubing Length correction Factor ...
Page 28: ...SM YAZE218 1 A 2 GB 8 1 8 WIRING DIAGRAMS 8 WIRING DIAGRAMS 8 1 YAZE218 Wiring Diagrams ...
Page 29: ...8 WIRING DIAGRAMS 9 1 SM YAZE218 1 A 2 GB 9 REFRIGERATION DIAGRAMS 9 1 YAZE218 Cooling Mode ...
Page 30: ...8 WIRING DIAGRAMS SM YAZE218 1 A 2 GB 9 2 9 2 YAZE218 Heating Mode ...
Page 77: ...14 1 SM YAZE218 1 A 2 GB 14 APPENDIX A 14 APPENDIX A INSTALLATION AND OPERATION MANUAL ...
Page 78: ...SERVICE MANUAL YAZE218 ...
