Daikin VRV IV+ Series Installation And Operation Manual page 13

e Piping accessory bag
11.3 Accessory pipes: Diameters
Accessory pipes (mm)
Gas pipe
▪ Front connection
ID Øa
ID Øb
▪ Bottom connection
ID Øa
OD Øb
Liquid pipe
▪ Front connection
ID Øb
ID Øa
▪ Bottom connection
ID Øb
ID Øa
11.4 To remove the transportation stay
Only for 14+16 HP
NOTICE
If the unit is operated with the transportation stay attached,
abnormal vibration or noise may be generated.
The transportation stay installed over the compressor leg for
protecting the unit during transport must be removed. Proceed as
shown in the figure and procedure below.
1 Slightly loosen the fixing nut (a).
2 Remove the transportation stay (b) as shown in the figure
below.
3 Tighten the fixing nut (a) again.
2 2
12 About the units and options
12.1 About the outdoor unit
This installation manual concerns the VRV IV, full inverter driven,
heat pump system.
Model line up:
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P546223-1B – 2020.10
HP Øa Øb
8 25.4 19.1
10 22.2
12 28.6
14
16
8 9.5
10
12 9.5 12.7
14 12.7
16
3 (12.3 N·m) 3 (12.3 N·m)
1 1
a
b
12 About the units and options
Model
RXYTQ8~16 Single non-continuous heating model.
RXYTQ18~48 Multi non-continuous heating model
(consisting of 2 or 3 RXYTQ modules).
These units are intended for outdoor installation and aimed for heat
pump air to air applications.
These units have (in single use) heating capacities ranging from 25
to 50 kW and cooling capacities rating from 22.4 to 45 kW. In multi
combination the heating capacity can go up till 150 kW and in
cooling till 135 kW.
The outdoor unit is designed to work in heating mode at ambient
temperatures from –20°C WB to 15.5°C WB and in cooling mode at
ambient temperatures from –5°C DB to 52°C DB.
Unit weights
Model Total net weight (kg)
RXYTQ8 198
RXYTQ10 234
RXYTQ12 234
RXYTQ14 283
RXYTQ16 283
12.2 System layout
NOTICE
Design of the system must not be done at temperatures
below –15°C.
a
f
b c c
d
e
a VRV IV Heat pump outdoor unit
b Refrigerant piping
c VRV direct expansion (DX) indoor unit
d User interface (dedicated depending on indoor unit type)
e User interface (wireless, dedicated depending on indoor
unit type)
f Cool/Heat changeover remote control switch
13 Unit installation
13.1 Preparing the installation site
13.1.1 Installation site requirements of the
outdoor unit
Mind the spacing guidelines. See the "Technical data" chapter.
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation in a commercial
environment.
Description
Total gross weight (kg)
211
251
251
300
300
and light industrial
Installation and operation manual
13