Daikin VRV II Series Design, Installation & Testing Instructions page 18

Points to Bear in Mind at the System Design
2.4.2 Main Considerations in Preparation of Control Circuit Diagrams
In addition to the design of the appropriate this system configuration it is also essential that the control
system be made amply clear. If the system is designed and installed without a clear, comprehensive plan
then problems are inevitably going to occur during the test run.
Servicing too will become much more time consuming than necessary. However, if control circuit diagrams
are prepared along with the contract drawings in order to make the total system clearly visible then the
essential points relating to the electrical connections will be easily understood, the test run will go off
without a hitch and the whole system will be rendered fully effective.
Step 1: Compiling
1. Mark each outdoor unit with a code.
2. Add field settings and data for outdoor units, and outdoor unit No. if using sequential start.
a System List
3. Add the model number of each indoor unit connected to each refrigerant circuit.
4. Assign each indoor unit a code.
5. Fill in the location of each indoor unit.
6. Group indoor units controlled by one or two remote controllers. (group or individual control).
7. Assign central group Nos. if using centralized control.
8. Add field settings and optional equipment for indoor units.
9. Add unit No. if making separate field settings for each indoor unit under group control.
Note:
With the VRV II R410A Heat Pump Series, unit No. is determined through automatic addressing, therefore
readout unit Nos. after activating the power.
Example: System list
Outdoor Unit
Model Name
Field Settings
(code)
Cool/Heat
selector:
Indoor unit
Low noise
operation
(L.N.O.P):
RXYQ16M
Individual control
(PAC1)
Sequential start:
ON Defrost:
Earlier
Sequential start
No.
Cool/Heat
selector:
Indoor unit
Low noise
operation
(L.N.O.P):
RXYQ18M
Individual control
(PAC2)
Sequential start:
ON Defrost:
Earlier
For details on field settings and centralized control group No., refer to the installation manual and system
reference materials.
12
Model Name System Name
FXCQ32M 2F01
FXSQ63M 2F02
FXCQ40M 2F03
FXHQ63M 2F04
FXCQ50M 2F05
FXSQ32M 3F01
FXCQ40M 3F02
FXSQ40M 3F03
FXCQ50M 3F04
Indoor Unit
Remote
Location Controller Control Group
Group
2nd floor
A
office
2nd floor
A
office
2nd floor
A
office
2nd floor
B
office
2nd floor
B
office
3rd floor
C
office
3rd floor
C
office
3nd floor
C
office
3rd floor
D
office
Centralized
Unit No. equipment, field
No. settings, etc.
1–00
(1–00)
(1–00)
1–01
(1–01)
1–02
(1–02)
(1–02)
1–03
General Information
Si39-303
Optional