Daikin ERQ Series, Руководство по обслуживанию

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Installation and operation manual
70
EKEQ EKEQDCBV3
Option kit for combination of Daikin condensing units
with field supplied air handling units
4P383212-1 - 2014.08
ERQ outdoor unit
The EKEQ(D/FA) control boxes can only be connected to an ERQ
outdoor unit in pair application. Only 1 expansion valve kit
EKEXV63~250 can be used per control box and per handling unit.
Depending on the heat exchanger, a connectable EKEXV (expansion
valve kit) must be selected to these limitations.
1 Selecting the condensing unit
Depending on necessary capacity of the combination an outdoor
unit needs to be selected (see "Engineering databook" for
capacity).
Each outdoor unit can be connected to a range of air
handling units.
The range is determined by the allowed expansion valve kits.
2 Selecting the expansion valve
The corresponding expansion valve needs to be selected for
your air handling unit. Select the expansion valve according to
the above limitations.
3 Selecting the capacity setting adaptor (see accessories)
The corresponding capacity setting adaptor needs to be
selected depending on the expansion valve.
Connect the correct selected capacity setting adaptor to
X24A (A1P). (See figure 4 and figure 6).
VRV IV range outdoor units
The EKEQFA control box can be connected to some types of VRV IV
outdoor unit (refer to the Engineering Data Book for outdoor units that
are in scope) with a maximum number of 3 connectable control boxes
to 1 system. 1 control box can be combined with 1 EKEXV kit. In this
configuation it is only allowed to connect air handling units. The
combination with VRV DX indoor units or other types of indoor units is
not allowed.
Depending on the air handling unit heat exchanger, a connectable
EKEXV (expansion valve kit) must be selected to following limitations.
1 The air handling unit can be considered as a standard VRV
indoor unit. The combinations of EKEXV kits (maximum 3) are
restricted by the connection ratio limitations: 90~110%.
2 Selecting the expansion valve
A corresponding expansion valve needs to be selected for your
air handling unit. Select the expansion valve according to the
above limitations.
3 Selecting the capacity setting adaptor (see accessories)
The corresponding capacity setting adaptor needs to be
selected depending on the expansion valve.
Connect the correct selected capacity setting adaptor to
X24A (A1P). (See figure 4).
Outdoor
unit (class)
EKEXV kit
Outdoor
unit (class)
EKEXV kit
100 EKEXV63~125 200 EKEXV100~250
125 EKEXV63~140 250 EKEXV125~250
140 EKEXV80~140
EKEXV
class
Allowed heat exchanger
cooling capacity (kW)
Allowed heat exchanger
heating capacity (kW)
Minimum Maximum Minimum Maximum
63 6.3 7.8 7.1 8.8
80 7.9 9.9 8.9 11.1
100 10.0 12.3 11.2 13.8
125 12.4 15.4 13.9 17.3
140 15.5 17.6 17.4 19.8
200 17.7 24.6 19.9 27.7
250 24.7 30.8 27.8 34.7
Cooling saturated suction temp.
(SST) = 6°C
Air temp. = 27°C DB/19°C WB
Superheat (SH) = 5 K Heating saturated suction temp.
(SST) = 46°C
Air temp. = 20°C DB
Subcool (SC) = 3 K
NOTE The expansion valve is an electronic type, it is
controlled by the thermistors that are added in
the circuit. Each expansion valve can control a
range of air handling units sizes.
The selected air handling unit must be
designed for R410A.
Extraneous substances (including mineral oils
or moisture) must be prevented from getting
mixed into the system.
SST: saturated suction temperature at exit of
air handling unit.
EKEXV kit
Capacity setting adaptor label
(indication)
63 J71
80 J90
100 J112
125 J140
140 J160
200 J224
250 J280
EKEXV
class
Allowed heat exchanger
cooling capacity (kW)
Allowed heat exchanger
heating capacity (kW)
Minimum Maximum Minimum Maximum
63 6.3 7.8 7.1 8.8
80 7.9 9.9 8.9 11.1
100 10.0 12.3 11.2 13.8
125 12.4 15.4 13.9 17.3
140 15.5 17.6 17.4 19.8
200 17.7 24.6 19.9 27.7
250 24.7 30.8 27.8 34.7
400 35.4 49.5 39.8 55.0
500 49.6 61.6 55.1 69.3
Cooling saturated suction temp.
(SST) = 6°C
Air temp. = 27°C DB/19°C WB
Superheat (SH) = 5 K Heating saturated suction temp.
(SST) = 46°C
Air temp. = 20°C DB
Subcool (SC) = 3 K
Additional limits exist when connecting the EKEQFCBA
control box. These can be found in the Engineering Data
Book of the EKEQFCBA and in this manual.
NOTE
The expansion valve (electronic type) is
controlled by the thermistors that are added in
the circuit. Each expansion valve can control a
range of air handling units sizes.
The selected air handling unit must be
designed for R410A.
Extraneous substances (including mineral oils
or moisture) must be prevented from getting
mixed into the system.
SST: saturated suction temperature at exit of
air handling unit.
EKEXV kit
Capacity
setting adaptor
label
(indication) EKEXV kit
Capacity
setting adaptor
label
(indication)
63 J71 200 J224
80 J90 250 J280
100 J112 400 J22
125 J140 500 J28
140 J160