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1 . Introduction
1 . 1 . General information
This installation manual concerns the VRV IV, full inverter driven, heat
pump system.
1
2
3
5
4
6
1
VRV IV Heat Recovery outdoor unit
2
Refrigerant piping
3
BS unit
4
VRV indoor unit
5
Cool/Heat selector (single BS unit only)
6
User interface (dedicated depending on indoor unit type)
7
User interface (wireless, dedicated depending on indoor unit
type)
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 recovery 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 + BS unit(s) + indoor
unit(s)) will work, you have to consult the latest technical engineering
data for VRV IV heat recovery.
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 VRV indoor units can be connected to a VRV IV heat recov-
ery system.
1 .2 .2 . Outdoor unit combinations
Standard combinations for VRV IV heat recovery system are as
indicated in tables below and right, where REYQ192-456 consists of
several REYQ72-168 modules as indicated.
72
REYQ72TTJU/TYDN
1
REYQ96TTJU/TYDN
REYQ120TTJU/TYDN
REYQ144TTJU/TYDN
3P362438-3H English
3
5
4
6
7
96
120
144
168
1
1
1
72
REYQ168TTJU/TYDN
REYQ192TTJU/TYDN
1
REYQ216TTJU/TYDN
REYQ240TTJU/TYDN
REYQ264TTJU/TYDN
REYQ288TTJU/TYDN
REYQ312TTJU/TYDN
REYQ336TTJU/TYDN
REYQ360TTJU/TYDN
REYQ384TTJU/TYDN
REYQ408TTJU/TYDN
REYQ432TTJU/TYDN
REYQ456TTJU/TYDN
To install the outdoor unit, the following optional parts are also required.
1 Refrigerant branching kit.
Description
for 3 piping
KHRP25M33H9
REFNET header
KHRP25M72H9
KHRP25M73HU9
KHRP25A22T9
KHRP25A33T9
REFNET joint
KHRP25M72TU9
KHRP25M73TU9
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
BHFP26P100U
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 recovery 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
1
2
1
1
2
3
1
1
1
1
1
1
3
2
1
Model name
for 2 piping
KHRP26M22H9
KHRP26M33H9
KHRP26M72H9
KHRP26A22T9
KHRP26A33T9
KHRP26M72TU9
–
3
BHFP26P151U
2
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