250C7Y1B
Split system air conditioner
4PW34720-1G – 07.2010
Installation manual
1
C
ONTENTS
Page
1. Safety considerations................................................................. 1
2. Introduction ................................................................................ 2
2.1. Combination..................................................................................... 2
2.2. Standard supplied accessories........................................................ 2
2.3. Optional accessories ....................................................................... 2
2.4. Technical and Electrical specifications............................................. 2
3. Main components ...................................................................... 2
4. Selection of location................................................................... 2
5. Inspecting and handling the unit ................................................ 3
6. Unpacking and placing the unit.................................................. 3
7. Refrigerant piping ...................................................................... 4
7.1. Selection of piping material.............................................................. 4
7.2. Refrigerant pipe size........................................................................ 4
7.3. Selection of branch pipe .................................................................. 5
7.4. Allowable pipe length and height difference .................................... 5
7.5. Existing or pre-installed piping can be used .................................... 5
7.6. Precautions on refrigerant piping..................................................... 5
7.7. Connecting the refrigerant piping..................................................... 6
7.8. Leak test and vacuum drying........................................................... 7
7.9. Pipe insulation ................................................................................. 7
7.10. Checking of unit and installation conditions..................................... 8
7.11. Stop valve operation procedure ....................................................... 8
7.12. Additional refrigerant charge............................................................ 8
8. Field wiring............................................................................... 11
8.1. Internal wiring – Parts table ........................................................... 11
8.2. Optional connectors....................................................................... 12
8.3. Power circuit and cable requirements ............................................ 12
8.4. General cautions............................................................................ 12
8.5. Examples ....................................................................................... 13
9. Before operation ............................................................................. 14
9.1. Service precautions ....................................................................... 14
9.2. Checks before initial start-up ......................................................... 15
9.3. Field setting ................................................................................... 15
9.4. Test operation ................................................................................ 16
10. Service mode operation........................................................... 17
11. Caution for refrigerant leaks..................................................... 17
12. Disposal requirements ............................................................. 18
The English text is the original instruction. Other languages are
translations of the original instructions.
1. S
AFETY
CONSIDERATIONS
The precautions listed here are divided into the following two types.
Both cover very important topics, so be sure to follow them carefully.
Warning
■
Ask your dealer or qualified personnel to carry out installation work.
Do not install the machine by yourself.
Improper installation may result in water leakage, electric shocks
or fire.
■
Perform installation work in accordance with this installation
manual.
Improper installation may lead to water leakage, electric shocks
or fire.
■
Be sure to use only the specified accessories and parts for
installation work.
Failure to use the specified parts may result in water leakage,
electric shocks, fire, or the unit falling.
■
When wiring between the indoor and outdoor units, and wiring
the power supply, form the wires so that the frontside panel can
be securely fastened.
If the frontside panel is not in place, overheat of the terminals,
electric shocks or a fire may be caused.
■
If refrigerant gas leaks during installation work, ventilate the area
immediately.
Toxic gas may be produced if refrigerant gas comes into contact
with fire.
■
After completing the installation work, check to make sure that
there is no leakage of refrigerant gas.
Toxic gas may be produced if refrigerant gas leaks into the room
and comes into contact with a source of fire, such as a fan
heater, stove or cooker.
■
Before touching electric terminal parts, turn off power switch.
■
Live parts can be easily touched by accident.
Do never leave the unit unattended during installation or
servicing when the service panel is removed.
■
When planning to relocate former installed units, you must first
recover the refrigerant after the pumping-down operation. Refer
to chapter
"Precaution for pumping-down operation" on page 10
.
Caution
■
Install drain piping according to this installation manual to
ensure good drainage, and insulate the pipe to prevent
condensation.
Improper drain piping may cause water leakage, and make the
furnitures get wet.
■
Install the indoor and outdoor units, power wire and connecting
wire at least 1 meter away from televisions or radios to prevent
image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not
be sufficient to eliminate the noise.)
■
Do not rinse the outdoor unit. This may cause electric shocks or
fire.
RZQ200C7Y1B
RZQ250C7Y1B
Split system air conditioner
Installation manual
READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
DAIKIN EQUIPMENT IS DESIGNED FOR COMFORT
APPLICATIONS. FOR USE IN OTHER APPLICATIONS,
PLEASE CONTACT YOUR LOCAL DAIKIN DEALER.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DEALER FOR ADVICE AND
INFORMATION.
THIS AIR CONDITIONER COMES UNDER THE TERM
"APPLIANCES NOT ACCESSIBLE TO THE GENERAL
PUBLIC".
WARNING
If the warning is not observed, it may cause serious casualties.
CAUTION
If the caution is not observed, it may cause injury or damage to the
equipment.
