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English
2-3 Combination
•
This BS unit is only for systems for Models REYQ-T.
It cannot be connected to systems for Models REYQ-P.
•
For series of applicable indoor units, refer to the catalog or other literature.
• Select the BS 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
Total capacity of all downstream indoor units
BS4Q14AV1
A ≤ 400
(*)
BS6Q14AV1
A ≤ 600
(*)
BS8Q14AV1
BS10Q14AV1
BS12Q14AV1
BS16Q14AV1
A ≤ 750
(*)
*
The total capacity and number of indoor units connectable to each branch connector are up to 140
and 5, respectively.
*
When the total capacity of indoor units to be connected downstream is larger than 140 (MAX.
250), use a junction pipe kit (KHRP26A250T, sold separately) to join two connections downstream
from the BS unit.
Table 2
Capacity expressed as indoor unit’s model No.
20
25
32
40
50
63
80
100
125
Indoor unit’s capacity (for use in computation)
20
25
31.25
40
50
62.5
80
100
125
*
About indoor unit’s capacity for HRV type (VKM), refer to the Engineering data book.
<Example selection>
In case of the BS unit with connect a FXCQ
32
M and a FXSQ
40
M.
Total capacity =
31.25+40
= 71.25
2-4 Checklist
Exercise particular care concerning the following items during installation work and check again after
installation is complete:
Post-installation checklist
Checklist
If defective
Check here.
Has the BS unit been installed securely?
The unit may fall, vibrate, or operate noisily.
Did you conduct a gas leak inspection?
The unit may fail to heat or cool as designed.
Was the unit fully insulated? (Refrigerant pipes and drain pipes)
The unit may leak water.
Does water flow smoothly from the drain?
The unit may leak water.
Is the supply voltage the same as the voltage indicated on the
label?
The unit may fail to operate or burn up.
Are there any wiring mistakes or erroneous wiring or erroneous
pipe connections?
The unit may fail to operate, burn up, or produce
abnormal noise.
Has the unit been earthed?
The unit may pose a hazard in the event of a
short-circuit.
Is the thickness of the electrical wiring the same as described in
the specifications?
The unit may fail to operate or burn up.
Delivery checklist
Checklist
Check here.
Has a cover been installed on the control box?
Did you give the customer the installation manual?
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