Daikin VRV-WIV RWEYQ-T Series, Installation And Operation Manual

Page: 48 / 60

Installation and operation manual
44
10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
22.2. Electrical specifications
Operation manual
Contents
Page
Operation manual.......................................................................... 44
1. Definitions................................................................................ 45
1.1. Meaning of warnings and symbols ...............................................45
1.2. Meaning of used terms .................................................................45
2. Introduction.............................................................................. 45
2.1. General information ......................................................................45
2.2. System layout ...............................................................................47
3. Before operation ...................................................................... 47
4. User interface .......................................................................... 48
5. Operation range....................................................................... 48
6. Operation procedure................................................................ 48
6.1. Cooling, heating, fan only, and automatic operation .....................48
6.2. Program dry operation ..................................................................49
6.3. Adjusting the air flow direction ......................................................49
6.4. Setting the master user interface..................................................49
6.5. Precautions for group control system or two user interface
control system...............................................................................50
7. Energy saving and optimum operation .................................... 50
8. Maintenance ............................................................................ 51
8.1. Handling of heat source water ......................................................51
8.2. Maintenance after a long stop period (e.g., at the beginning
of the season) ...............................................................................51
8.3. Maintenance before a long stop period (e.g., at the end of the
season) .........................................................................................51
9. Symptoms that are not air conditioner troubles ....................... 51
10. Troubleshooting ....................................................................... 52
11. After-sales service and warranty ............................................. 53
11.1. Warranty period ............................................................................53
11.2. After-sales service ........................................................................53
11.3. Shortening of "maintenance cycle" and "replacement cycle"
needs to be considered in following situations .............................53
11.4. Malfunction codes .........................................................................54
Thank you for purchasing this Daikin VRV IV system.
The original instructions are written in English. All other languages
are translations of the original instructions.
(c) Nominal heating capacities are based on indoor temperature 20°C DB, inlet water
temperature 20°C, equivalent refrigerant piping: 7.5 m, level difference: 0 m.
(d) Actual number of units depends on the indoor unit type and the connection ratio
restriction for the system (50% ≤ CR ≤ 130%).
(e) Sound values are measured in a semi-anechoic room.
(f) Sound power level is an absolute value that a sound generates.
(g) Sound pressure level is a relative value depending on the distance and acoustic
environment. For more details, refer to sound level drawings in the technical data
book.
RWEYQ8 RWEYQ10
Power supply
• name Y1
• phase 3N~
• frequency
(Hz)
50
• voltage
(V)
380-415
Current
• nominal running
current (RLA)
(a)
(a) RLA is based on indoor unit temperature 27°C DB and 19°C WB, inlet water
temperature 30°C.
(A)
7.2 9.5
• starting current
(MSC)
(b)
(b) MSC=the maximum current during startup of the compressor. VRV IV uses only
inverter compressors.
(A)
≤ MCA
• minimum circuit
amps (MCA)
(c)
(c) MCA must be used to select the correct field wiring size. The MCA can be
regarded as the maximum running current.
(A)
12.6 12.6
• maximum fuse
amps (MFA)
(d)
(d) MFA is used to select the circuit breaker and the ground fault circuit interrupter
(earth leakage circuit breaker).
(A)
20 20
• total overcurrent
amps (TOCA)
(e)
(e) TOCA means the total value of each OC set.
(A)
13.5 13.5
Voltage range
(f)
(f) Voltage range: units are suitable for use on electrical systems where voltage
supplied to the unit terminal is not below or above listed range limits.
Maximum allowable voltage range variation between phases is 2%.
(V)
380-415 ±10%
Wiring connections
• for power supply 5G
• for connection to
indoor unit
2 (F1/F2)
Power supply intake both indoor and outdoor unit
CAREFULLY READ THESE INSTRUCTIONS BEFORE
OPERATING THE UNIT. THEY WILL TELL YOU HOW TO
USE THE UNIT PROPERLY. KEEP THIS MANUAL IN A
HANDY PLACE FOR FUTURE REFERENCE.
This appliance is not intended for use by persons,
including children, with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction
concerning use of the appliance by a person responsible
for their safety. Children shall be supervised to ensure that
they do not play with the appliance.
WARNING
 This unit contains electrical and hot parts.

Before operating the unit, be sure the installation has
been carried out correctly by an installer. If you feel
unsure about operation, contact your installer for
advice and information.