Daikin RDXYQ8T7V1B, Руководство по установке

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3 About the units and options
Installation manual
5
8T7V1B*
VRV IV heat exchanger unit for indoor installation
4P408444-1B – 2016.04
3 About the units and options
3.1 About the compressor unit and
heat exchanger unit
The compressor unit and heat exchanger unit are intended for indoor
installation and aimed for air to air heat pump applications.
Specification 5 HP 8 HP
Maximum capacity Heating 16.0 kW 25.0 kW
Cooling 14.0 kW 22.4 kW
Outside ambient
design temperature Heating –20~15.5°C WB
Cooling –5~46°C DB
Ambient design temperature of
compressor unit and heat exchanger
unit 5~35°C DB
Maximum relative
humidity around the
compressor unit and
heat exchanger unit Heating 50%
(a)
Cooling 80%
(a)
(a) To avoid condensation and water dripping out of the unit. If
the temperature or the humidity is beyond these conditions,
safety devices may be put in action and the air conditioner
may not operate.
3.2 System layout
NOTICE
Design of the system must not be done at temperatures
below –15°C.
d d
c c
a
b
VRV DX VRV DX VRV DX EKEXV
AHU
d d
1 2
1 In case of VRV DX indoor units
2 In case of VRV DX indoor units combined with an air
handling unit
a Heat exchanger unit
b Compressor unit
c Refrigerant piping
d User interface (dedicated depending on indoor unit type)
VRV DX VRV direct expansion (DX) indoor unit
EKEXV Expansion valve kit
AHU Air handling unit
3.3 Combining units and options
3.3.1 Possible options for the compressor unit
and heat exchanger unit
For more possible options, see the installer and user reference
guide.
Drain pan heater (EKDPH1RDX)
▪ When. Installation is optional. It is recommended in areas where
the outside temperature is below –7°C for more than 24 hours
continuously.
▪ Where. Install the drain pan heater in the heat exchanger unit.
▪ How. See the installation instructions delivered with the drain pan
heater.
Filter for debris (delivered as accessory)
▪ When. Installation is optional. It is recommended in places where
a lot of debris or dirt (example: leafs) can go into the suction
ducting.
▪ Where. Install the filter in one of the following places:
▪ Suction opening of the heat exchanger unit
▪ Suction ducting (easier for maintenance)
▪ How. See the installation instructions attached to the filter.
▪ Pressure drop over the filter:
▪ 5 HP: 30 Pa at 60 m³/min
▪ 8 HP: 75 Pa at 100 m³/min
4 Preparation
4.1 Preparing installation site
4.1.1 Installation site requirements of the heat
exchanger unit
▪ Service space. Mind the following requirements:
≥10
≥50
a
b
≥100
≥500
≥100
(mm)
a Air suction side
b Air discharge side
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
These units (compressor unit, heat exchanger unit and
indoor units) are suitable for installation in a commercial
and light industrial environment.
NOTICE
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.