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Installation manual
R(Y)200F7W1
R(Y)250F7W1
R(Y)P200B7W1
R(Y)P250B7W1
Before installation ..................................................................... 1
Selecting installation site .......................................................... 2
Precautions on installation ....................................................... 2
Installation servicing space ...................................................... 2
Refrigerant pipe size and allowable pipe length ...................... 3
Precautions on refrigerant piping ............................................. 3
Evacuating ................................................................................ 5
Charging refrigerant ................................................................. 5
Electrical wiring work ................................................................ 6
Test operation ........................................................................... 7
Disposal requirements .............................................................. 7
Wiring diagram ......................................................................... 7
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY PLACE
FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF EQUIP-
MENT 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 SPECIFIC-
ALLY DESIGNED FOR USE WITH THE EQUIPMENT AND
HAVE THEM INSTALLED BY A PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE
AND INFORMATION.
B
EFORE
INSTALLATION
Precautions
For R407C units only
•
The new refrigerant requires strict cautions for keeping the
system clean, dry and tight.
a. Clean and dry.
Foreign materials (including mineral oils or moisture) should
be prevented from getting mixed into the system.
b. Tight.
Read the chapter ‘Precautions on refrigerant piping’ carefully
and follow these procedures correctly.
Since design pressure is 3.3MPa or 33bar (for R22 units
3.0MPA or 30bar), pipes of larger wall thickness may be
required.
•
Since R407C is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the
refrigerant is in state of gas, its composition changes and the
system will not work properly).
•
The connected indoor units must be indoor units designed
exclusively for R407C. If indoor units for R22 are connected,
normal operation cannot be assured.
page
Split System air conditioners
Installation
•
For installation of the indoor unit(s), refer to the indoor unit
installation manual.
•
This outdoor unit requires the pipe branching kit (optional)
when used as the outdoor unit for the simultaneous operation
system. Refer to catalogues for details.
•
Never operate the unit without the thermistor (R3T), burning
of the compressor may result.
•
When closing the service panels, take care that the tightening
torque does not exceed 4.1Nm.
Accessories
Check if the following accessories (gas pipes) are included with
your unit.
Handling
The units are packed in a wooden crate and attached on a
wooden pallet.
At delivery, the package should be checked and any damage
should be reported immediately to the carrier claims agent.
When handling the unit, take into account the following:
1.
Fragile, handle the unit with care.
Keep the unit upright in order to avoid compressor
damage.
2. Lift the unit preferably with a crane and 2 belts (1) of at least
8m long.
3. When lifting the unit with a crane, always use protectors (2)
to prevent belt damage and pay attention to the position of the
unit’s centre of gravity.
4. Bring the unit as close to its final installation position in its
original package to prevent damage during transport.
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