Daikin VRV EMERION RXYQ-AATJA, Service Manual

Page: 24 / 429

Capacity Range SiUS342303E
17 Part 1 General Information
4. Capacity Range
4.1 Connection Ratio
Type
Min.
connection
ratio
Max. connection ratio
Types of connected
indoor units
Type of connected air treatment
equipment
Low-temperature
hydrobox

4
When using
only
FXDQ-M,
FXSQ07-54TB,
FXMQ-PB,
FXAQ-P
When using at
least one
FXFQ07/09T,
FXZQ05TB,
FXSQ05TB
Other
indoor unit
models
FXMQ-MF
When only
FXMQ-MF is
connected
When
FXMQ-MF and
indoor units
are connected
When HXY-A and
indoor units are
connected
Single
outdoor
units
6-14 ton
50% 200%

1
180%

1 200%

1
100% 100%

2 130%

3
16-20 ton 180%

1 180%

1
Double outdoor
units
160%

1 160%

1
Notes:

1.

2.

3.

4.
If the operational capacity of indoor units is more than 130%, low airflow operation is enforced in all the
indoor units. This limitation can be deactivated through field setting. Refer to page 202 for detail.
When outdoor-air processing units (FXMQ-MF) and standard indoor units are connected, the total
connection capacity of the outdoor-air processing units (FXMQ-MF) must not exceed 30% of the capacity
index of the outdoor units. And the connection ratio must not exceed 100%.
When connecting the hydrobox, to prevent temporary water temperature drop on the secondary side of the
hydrobox at the time of defrosting or when the indoor unit starts/stops, and to prevent freezing, connect the
indoor unit with 50% or more capacity of the outdoor unit.
Mixed combination of FXMQ-MF and hydrobox in the system is not allowed.
Connection ratio =
Total capacity index of the indoor units
Capacity index of the outdoor units