Specifications

Installation and operation manual
50
RXYQQ8~20T7Y1B
VRV IV System Air Conditioner
4P345099-1 – 2013.04
Operation manual
Contents Page
1. Definitions................................................................................ 50
1.1. Meaning of warnings and symbols............................................... 50
1.2. Meaning of used terms ................................................................ 50
2. Introduction.............................................................................. 51
2.1. General information ..................................................................... 51
2.2. System layout .............................................................................. 53
3. Before operation ...................................................................... 53
4. User interface .......................................................................... 53
5. Operation range....................................................................... 53
6. Operation procedure................................................................ 53
6.1. Cooling, heating, fan only, and automatic operation .................... 53
6.2. Program dry operation ................................................................. 54
6.3. Adjusting the air flow direction ..................................................... 54
6.4. Setting the master user interface ................................................. 55
6.5. Precautions for group control system or two user interface control
system.......................................................................................... 55
7. Energy saving and optimum operation .................................... 55
8. Maintenance............................................................................ 56
8.1. Maintenance after a long stop period (e.g., at the beginning of the
season) ........................................................................................ 56
8.2. Maintenance before a long stop period (e.g., at the end of the
season) ........................................................................................ 56
9. Symptoms that are not air conditioner troubles ....................... 56
10. Troubleshooting....................................................................... 58
11. After-sales service and warranty ............................................. 58
11.1. Warranty period............................................................................ 58
11.2. After-sales service ....................................................................... 58
11.3. Shortening of "maintenance cycle" and "replacement cycle" needs
to be considered in following situations ....................................... 59
11.4. Malfunction codes ........................................................................ 59
Thank you for purchasing this Daikin VRV IV replacement system.
The original instructions are written in English. All other languages
are translations of the original instructions.
1. Definitions
1.1. Meaning of warnings and symbols
Warnings in this manual are classified according to their severity and
probability of occurrence.
Some types of danger are represented by special symbols:
1.2. Meaning of used terms
Installation manual:
Instruction manual specified for a certain product or application,
explaining how to install, configure and maintain it.
Operation manual:
Instruction manual specified for a certain product or application,
explaining how to operate it.
Maintenance instructions:
Instruction manual specified for a certain product or application,
which explains (if relevant) how to install, configure, operate and/or
maintain the product or application.
Dealer:
Sales distributor for products as per the subject of this manual.
Installer:
Technical skilled person who is qualified to install products as per the
subject of this manual.
User:
Person who is owner of the product and/or operates the product.
Service company:
Qualified company which can perform or coordinate the required
service to the unit.
Applicable legislation:
All international, European, national and local directives, laws,
regulations and/or codes which are relevant and applicable for a
certain product or domain.
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.
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.
NOTICE
Indicates situations that may result in equipment or
property-damage accidents only.
INFORMATION
This symbol identifies useful tips or additional information.
Electric current.
Danger of burning and scalding.