Possible Combinations Of Indoor Units; Possible Combinations Of Outdoor Units - Daikin VRV IV+ Installer And User Reference Manual

16 | About the units and options

16.5.2 Possible combinations of indoor units

16.5.3 Possible combinations of outdoor units

Installer and user reference guide
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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.
In general following type of indoor units can be connected to a VRV IV heat
recovery 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).
▪ HT (high temperature) Hydrobox (air-to-water applications): HXHD series
(heating only).
▪ LT (low temperature) Hydrobox (air-to-water applications): HXY080/125 series.
▪ AHU (air-to-air applications): EKEXV-kit+EKEQM-box required, depending on the
application.
▪ Comfort air curtain (air-to-air applications): CYVS (Biddle) series.
Possible standalone outdoor units
Non-continuous heating
REYQ8
REYQ10
REYQ12
REYQ14
REYQ16
REYQ18
REYQ20
Possible standard combinations of outdoor units
INFORMATION
U-series units cannot share the same refrigerant circuit with T-series units. However,
electrically, U-series units and T-series units can be connected via F1/F2.
▪ REYQ10~54 consist of 2 or 3 REYQ8~20 or REMQ5 units.
▪ REMQ5 units cannot be used as standalone outdoor units.
Continuous heating
REYQ10 = REMQ5 + 5
REYQ13 = REYQ8 + REMQ5
REYQ16 = REYQ8 + 8
REYQ18 = REYQ8 + 10
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10