Installation and operation manual
4
10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
3.
Introduction
3.1.
General information
This installation manual concerns VRV inverters of the Daikin
RWEYQ-T series. These units are designed for indoor installation
and used for cooling, heat pump and heat recovery applications.
The RWEYQ-T units can be combined with Daikin VRV series indoor
units for air conditioning purposes. The present installation manual
describes the procedures for unpacking, installing and connecting the
RWEYQ-T units. Installation of the indoor units is not described in this
manual. Always refer to the installation manual supplied with these
units for their installation.
These units have (in single use) heating capacities ranging from 25 to
31.5 kW and cooling capacities ranging from 22.4 to 28 kW. In multi
outdoor unit combinations, the heating capacity can go up to 94.5 kW
and in cooling up to 84 kW.
3.2.
Standard operation range
Use the system within the following temperature and humidity ranges
for safe and effective operation.
Above operation range is only valid in case direct expansion indoor
units are connected to the VRV IV system.
A
Inlet water temperature (°C)
B
Indoor temperature (°C WB)
C
Indoor temperature (°C DB)
Range for continuous operation
Range for operation
Range for pull down operation
Range for warming up operation
Only when brine type setting is activated
A
Heat pump system:
Heating or cooling mode is possible.
B
Heat recovery system:
Heating, cooling or simultaneous heating/cooling is
possible.
1
Closed cooling tower
2
Boiler
3
VRV IV water-cooled unit
4
VRV DX indoor unit
5
User interface:
Dedicated depending on indoor unit type.
6
BS box:
Required in each indoor unit if user selectable operation
mode is required.
3.3.
Technical and electrical specifications
Refer to the Engineering Data Book for the complete list of
specifications.
3.4.
Model identification
Model name: RW E Y Q 10 T8 Y1 B
Ambient temperature around
the VRV IV water-cooled unit
0~40°C
(a)
(a) Heat release from the unit: 0.71 kW/10 Hp/hour
Indoor temperature
21~32°C DB
14~25°C WB
15~27°C DB
Indoor humidity
≤
80%
(b)
(b) 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.
Water temperature at the
water inlet of the VRV IV
water-cooled unit
10°C~45°C
(c)
(c) The lower limit is extendable till –10°C (heating operation mode) in case the brine
type setting is activated. (See
"Brine type setting" on page 36
)
Water flow rate
50~150 l/min
(d)
(d) Water flow rate is indicated for 1 outdoor unit (not for several as in multi outdoor
unit combination)
Cooling
Heating
10
5
0
-5
-10
15
20
25
30
35
40
45
10
15
20
25
30
A
B
10
5
0
-5
-10
15
20
25
30
35
40
45
10
15
20
25
30
A
C
INFORMATION
The unit is designed for the following operation range:
Water temperature: 20~35°C
Water volume:
≥
60 l/minute
Code
Description
RW E Y Q 10 T8 Y1 B
RW
Water-cooled split (outdoor) unit
E
Heat pump system
Y
Heat recovery system
Q
Refrigerant R410A
10
Capacity index
T8
VRV IV series
Y1
Power supply: 3N~, 380~415 V, 50 Hz
B
European Market
1
2
3
1
2
3
4
5
4
5
6
A
B
