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1 . Introduction
1 . 1 . General information
This installation manual concerns the VRV IV, full inverter driven, heat
pump system.
1
8
2
3
5
6
1
VRV IV Heat pump outdoor unit
2
Refrigerant piping
3
VRV indoor unit
4
Branch Provider unit (required to connect Mini-split indoor
units)
5
Mini-split indoor units
6
User interface (dedicated depending on indoor unit type)
7
User interface (wireless, dedicated depending on indoor unit
type)
8
Cool/Heat selector
INFORMATION
Not all combinations of indoor units are allowed. For guidance, see
1.2. Combination and options on page 2
1 .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.
NOTE
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.
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.
1 .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 depends on both
outdoor unit model and indoor unit model combinations.
• VRV indoor units.
• Mini-split indoor units.
• AHU (air to air applications): AHU Integration kit is required. See
latest Engineering Data Book for more details .
3P362438-1B English
4
3
3
6
6
7
1 .2 .2 . Outdoor unit combinations
Standard combinations for VRV IV heat pump system are as indicated
in table below, where RXYQ192-408 consists of several RXYQ72-168
modules as indicated.
72
RXYQ72TTJU/TYDN
1
RXYQ96TTJU/TYDN
RXYQ120TTJU/TYDN
RXYQ144TTJU/TYDN
RXYQ168TTJU/TYDN
RXYQ192TTJU/TYDN
1
RXYQ216TTJU/TYDN
RXYQ240TTJU/TYDN
RXYQ264TTJU/TYDN
RXYQ288TTJU/TYDN
RXYQ312TTJU/TYDN
RXYQ336TTJU/TYDN
RXYQ360TTJU/TYDN
RXYQ384TTJU/TYDN
RXYQ408TTJU/TYDN
To install the outdoor unit, the following optional parts are also required.
1 Refrigerant branching kit.
Description
Refnet header
Refnet joint
For the selection of the optimal branching kit, please refer to
7.4. Selection of refrigerant branch kits on page 10.
2 Outdoor unit multi connection piping kit.
Number of outdoor units connected
2
BHFP22P100U
3 In order to control the cooling or heating operation from a central
location, the following option can be connected:
- Cool/Heat selector: KRC19-26A
- With optional fixing box for the switch: KJB111A
- Centralized control devices (e.g., intelligent Touch Manager)
4 To instruct specific operation with an external input coming from a
central control the external control adaptor (DTA104A61/62) can
be used. Instructions (group or individual) can be instructed for low
noise operation and power consumption limitation operation.
5 For VRV IV heat pump system it is also possible to make several
commissioning field settings through a personal computer inter-
face. For this option EKPCCAB* is required which is a dedicated
cable to communicate with the outdoor unit. The software for the
user interface program can be obtained from your local Daikin
sales office.
INFORMATION
Refer to the technical engineering data for the latest option names.
96
120
144
168
1
1
1
1
1
1
1
2
1
1
2
1
1
2
3
1
1
1
1
1
1
Model name
KHRP26M22H9
KHRP26M33H9
KHRP26M72H9
KHRP26M73HU9
KHRP26M22T
KHRP26M33T
KHRP26M72TU9
KHRP26M73TU9
3
BHFP22P151U
2
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