Installation and operation manual
3
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV System Air Conditioner
4P329765-1 – 2012.09
These units have (in single use) heating capacities ranging from 25 to
63 kW and cooling capacities rating from 22.4 to 56 kW. In multi
combination the heating capacity can go up till 168 kW and in cooling
till 150 kW.
The outdoor unit is designed to work in heating mode at ambient
temperatures from –20°C to 21°C and in cooling mode at ambient
temperatures from –5°C to 43°C.
1
VRV IV Heat pump outdoor unit
2
Refrigerant piping
3
VRV direct expansion (DX) indoor unit
4
VRV LT Hydrobox (HXY(080/125))
5
BP box (required to connect Residential Air (RA) or Sky Air
(SA) direct expansion (DX) indoor units)
6
Residential Air (RA) direct expansion (DX) indoor units)
7
User interface (dedicated depending on indoor unit type)
8
User interface (wireless, dedicated depending on indoor
unit type)
9
Cool/Heat changeover remote control switch
3.2.
Combination and options
The VRV IV heat pump system can be combined with several types
of indoor units and is intended for R410A use only.
For an overview which units are available you can consult the product
catalogue for VRV IV.
An overview is given indicating the allowed combinations of indoor
units and outdoor units. Not all combinations are allowed. They are
subject to rules (combination between outdoor-indoor, single outdoor
unit use, multiple outdoor unit use, combinations between indoor
units, etc.) mentioned in the technical engineering data.
3.2.1.
Indoor unit combinations
In general following type of indoor units can be connected to a
VRV IV heat pump system. The list is non-exhaustive and is
depending on both outdoor unit model and indoor unit model
combinations.
VRV direct expansion (DX) indoor units (air to air applications).
SA/RA (Sky Air/Residential Air) direct expansion (DX) indoor
units (air to air applications). Further referred to as RA DX indoor
units.
Hydrobox (air to water applications): HXY080/125* series only.
AHU (air to air applications): EKEXV-kit+EKEQ-box are
required, depending on application.
Aircurtain (air to air applications): CYQ*/CAV* (Biddle) series,
depending on application.
3.2.2.
Outdoor unit combinations
Single unit (stand alone outdoor unit) can be chosen from two
ranges. The RYYQ* model (continuous heating) or RXYQ*
model (non-continuous heating). The RYYQ* models provide
continuous comfort during defrost operation.
Multi unit (multiple outdoor unit) combinations "non-continuous
heating" consist of RXYQ8~20 modules. E.g.,
RXYQ36*=RXYQ20*.
Multi unit (multiple outdoor unit) combinations "continuous
heating" consist of RYMQ8~20 modules. E.g.,
RYYQ36*=RYMQ20*. Multi modules RYMQ* cannot
be used as single unit (stand alone outdoor unit):
RYMQ8~20HP.
Multi unit combinations can never contain RYYQ8~20 models as
one of the multi modules.
Multi "continuous heating" RYYQ* combinations can never
contain RXYQ* models.
Multi "non-continuous heating" RXYQ* combinations can never
contain RYMQ* models.
Standard combinations for VRV IV heat pump system are as
indicated in table below, where RYYQ22~54 consists of several
RYMQ8~20 modules in the horsepower class as indicated and where
RXYQ22~54 consists of several RXYQ8~20 modules in the
horsepower class as indicated.
To install the outdoor unit, the following optional parts are also
required.
1
Refrigerant branching kit.
For the selection of the optimal branching kit, please refer to
"9.4. Selection of refrigerant branch kits" on page 13
.
NOTICE
Design of the system must not be done at temperatures
below –15°C.
INFORMATION
Not all combinations of indoor units are allowed, for
guidance, see
"3.2. Combination and options" on page 3
.
NOTICE
To be sure your system setup (outdoor unit+indoor unit(s))
will work, you have to consult the latest technical
engineering data for VRV IV heat pump.
7
3
7
7
8
7
7
3
3
3
4
6
5
2
9
1
8 HP 10 HP 12 HP 14 HP 16 HP 18 HP 20 HP
Hea
t pump
RXYQ8*/RYYQ8*
1
RXYQ10*/RYYQ10*
1
RXYQ12*/RYYQ12*
1
RXYQ14*/RYYQ14*
1
RXYQ16*/RYYQ16*
1
RXYQ18*/RYYQ18*
1
RXYQ20*/RYYQ20*
1
M
u
lt
i c
o
mbinat
ion
w
it
h
2 out
do
or
unit
s
RXYQ22*/RYYQ22*
1
1
RXYQ24*/RYYQ24*
1
1
RXYQ26*/RYYQ26*
1
1
RXYQ28*/RYYQ28*
1
1
RXYQ30*/RYYQ30*
1
1
RXYQ32*/RYYQ32*
2
RXYQ34*/RYYQ34*
1
1
RXYQ36*/RYYQ36*
1
1
M
u
lt
i com
b
in
at
ion
wi
th
3
out
d
oor unit
s
RXYQ38*/RYYQ38*
1
1
1
RXYQ40*/RYYQ40*
1
1
1
RXYQ42*/RYYQ42*
1
2
RXYQ44*/RYYQ44*
1
2
RXYQ46*/RYYQ46*
1
2
RXYQ48*/RYYQ48*
3
RXYQ50*/RYYQ50*
2
1
RXYQ52*/RYYQ52*
1
2
RXYQ54*/RYYQ54*
3
Description
Model name
Refnet header
KHRQ22M29H
KHRQ22M64H
KHRQ22M75H
Refnet joint
KHRQ22M20T
KHRQ22M29T9
KHRQ22M64T
KHRQ22M75T
Содержание RYYQ8T7Y1B
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