Installation manual
1
R(Y)(P)71~125B7
Split System air conditioners
4PW10931-1B
Page
Before installation.............................................................................. 1
Selecting installation site................................................................... 1
Precautions on installation ................................................................ 2
Installation servicing space ............................................................... 3
Refrigerant pipe size and allowable pipe length ................................ 3
Precautions on refrigerant piping ...................................................... 4
Evacuating......................................................................................... 5
Charging refrigerant .......................................................................... 5
Electrical wiring work......................................................................... 6
Test operation.................................................................................... 7
Disposal requirements ...................................................................... 7
Wiring diagram .................................................................................. 7
B
EFORE
INSTALLATION
Precautions
For R407C units only
■
The new refrigerant requires strict cautions for keeping the
system clean, dry and tight.
-
Clean and dry
Foreign materials (including mineral oils or moisture) should be
prevented from getting mixed into the system.
-
Tight
Read
"Precautions on refrigerant piping" on page 4
carefully and
follow these procedures correctly.
Since design pressure is 3.3 MPa or 33 bar (for R22 units
3.0 MPA or 30 bar), 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.
■
Make sure not to connect new B type units to older GZ type
units.
In case you sin against this rule, an error code will appear in the
remote controller display in situations as in the table.
Installation
■
For installation of the indoor unit(s), refer to the indoor unit
installation manual.
■
Illustrations show R(Y)(P)125 outdoor unit type. Other types
also follow this 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.
■
Be sure to confirm the model name and the serial no. of the
outer (front) plates when attaching/detaching the plates to avoid
mistakes.
■
When closing the service panels, take care that the tightening
torque does not exceed 4.1 Nm.
Handling
As shown in the figure, bring the unit slowly by grabbing the left and
right grips. (Take care not to let hands or things come in contact with
rear fins.)
S
ELECTING
INSTALLATION
SITE
1
Select an installation site where the following conditions are
satisfied and that meets with your customer's approval.
-
Places which are well-ventilated.
-
Places where the unit does not bother next-door neighbours.
-
Safe places which can withstand the unit's weight and
vibration and where the unit can be installed level.
-
Places where there is no possibility of flammable gas or
product leak.
-
Places where servicing space can be well ensured.
-
Places where the indoor and outdoor units' piping and wiring
lengths come within the allowable ranges.
-
Places where water leaking from the unit cannot cause
damage to the location (e.g. in case of a blocked drain pipe).
R(Y)(P)71-100B7V1
R(Y)(P)71-100-125B7W1
RP71-100-125B7T1
Split System air conditioners
Installation manual
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE 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.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR
ADVICE AND INFORMATION.
B
GZ
B
GZ
-
-
✓
✓
