Daikin VRV IV Series Installation Manual page 6

1-3 Combination
• This Branch Selector unit is only for systems for models REYQ-T and PC series.
It cannot be connected to systems for models REYQ-M, P, PA and PB series.
• For series of applicable indoor units, refer to the catalog or other literature.
• Select the Branch Selector unit to fit the total capacity (sum of unit's capacity) of the indoor units
to be connected downstream, refer to the Table 1. About indoor unit's capacity, refer to the Table 2.
Table 1
Model
BS4Q54TVJ
BS6Q54TVJ
BS8Q54TVJ
BS10Q54TVJ
BS12Q54TVJ
* The total capacity and number of indoor units connectable to each branch connector are up to
54 and 5, respectively. When the total capacity of indoor units to be connected downstream is
larger than 54 (MAX. 96), use a junction pipe kit (KHRP26A250T, sold separately) to join two
connections downstream from the Branch Selector unit.
Table 2
Capacity expressed as indoor unit's model No.
Indoor unit's capacity (for use in computation)
<Example selection>
In case of the Branch Selector unit with connect a FXFQ12P and a FXMQ18P.
Total capacity = 12+18 = 30
1-4 Checklist
Exercise particular care concerning the following items during installation work and check again
after installation is complete:
Post-installation checklist
Has the Branch Selector unit been installed securely?
Did you conduct a gas leak inspection?
Was the unit fully insulated? (Refrigerant pipes)
Is the supply voltage the same as the voltage indicated on the
label?
Are there any wiring mistakes or erroneous wiring or erroneous
pipe connections?
Has the unit been grounded?
Is the thickness of the electrical wiring the same as described in
the specifications?
Delivery checklist
Has a cover been installed on the control box?
Did you give the customer the installation manual?
3
Total capacity of all downstream indoor units
07 09
7.5 9.5
Checklist
Checklist
A ≤ 144 (*)
A ≤ 216 (*)
A ≤ 290 (*)
12 18 24 30 36 42
12 18 24 30 36 42
If defective
The unit may fall, vibrate, or operate noisily.
The unit may fail to heat or cool as designed.
The unit may leak water.
The unit may fail to operate or burn up.
The unit may fail to operate, burn up, or produce
abnormal noise.
The unit may pose a hazard in the event of a
short-circuit.
The unit may fail to operate or burn up.
Check here.
48 54 72 96
48 54 72 96
Check here.
3P405106-9 English