![background image](http://html1.mh-extra.com/html/daikin/reyq96mtju/reyq96mtju_design-installation-and-testing-instruction_4175824174.webp)
Refrigerant Piping
Si39-406
168
Installation Manual REYQ96MTJU
<Cautions for check operation>
If the system is started within about 12 minutes after the outdoor/ indoor units are turned ON,
the compressor will not run and H2P lights up. Before starting an operation, always verify that
the LED display shows the contents of the table in “8-2 Test run 2.”.
The system may require up to 10 minutes until it can start the compressor after an operation
start. This is a normal operation to equalize the refrigerant distribution.
The check operation does not provide any means of checking the indoor units individually. For
that purpose, perform normal operation using the remote controller after the check operation.
Remote controller displays an error:
Temperature
adjustment
operation
confirmation
After the test run is over, operate the unit normally. (Heating is not possible if the outdoor
temperature is 75°F or higher.)
•
Make sure the indoor and outdoor units are operating normally (If a knocking sound can be
heard in the liquid compression of the compressor, stop the unit immediately and then
energize the heater for a sufficient length of time before restarting the operation.)
•
Run each indoor unit one at a time and make sure the corresponding outdoor unit is also running.
•
Check to see if cold (or hot) air is coming out of the indoor unit.
•
Press the fan direction and fan strength buttons on the indoor unit to see if they operate
properly.
CAUTION
<Cautions for normal operation check>
Once stopping, the compressor will not restart in about 5 minutes even if the Run/Stop button of
an indoor unit in the same system is pressed.
When the system operation is stopped by the remote controller, the outdoor units may continue
operating for further 5 minutes at maximum.
If the system has not undergone any check operation by the test operation button since it was
first installed, an error code “U3” is displayed. In this case, perform check operation referring to
“8-2 Test run”
.
After the test run, when handing the unit over to the customer, make sure the electric box lid, the
service lid, and the unit casing are all attached.
Installation error
Malfunction
code
Remedial action
The shutoff valve of an indoor unit is
left closed.
E3
E4
F3
UF
Check referring to the table in
“6-6 Additional
Refrigerant Charge”
.
The phases of the power to the
outdoor units are reversed.
U1
Exchange two of the three phases (L1, L2, L3) to
make a positive phase connection.
No power is supplied to an outdoor
or indoor unit (including phase
interruption).
U1
U4
Check if the power wiring for the outdoor units
are connected correctly.
(If the power wire is not connected to L2 phase,
no malfunction display will appear and the
compressor will not work.)
Incorrect interconnections between
units
UF
Check if the refrigerant line piping and the unit
wiring are consistent with each other.
Refrigerant
overcharge
E3
F6
UF
Recalculate the required amount of refrigerant
from the piping length and correct the refrigerant
charge level by recovering any excessive
refrigerant with a refrigerant recovery machine.
Insufficient
refrigerant
E4
F3
Check if the additional refrigerant charge has
been finished correctly.
Recalculate the required amount of refrigerant
from the piping length and add an adequate
amount of refrigerant.
If an outdoor multi terminal is
connected when there is one
outdoor unit installed
U7
UF
Remove the line from the outdoor multi terminals
(Q1 and Q2).
Summary of Contents for REYQ96MTJU
Page 1: ...Design Installation Testing Instruction R410A Heat Recovery 60Hz REYQ96MTJU Si39 406...
Page 6: ...Si39 406 iv Table of Contents...
Page 34: ...Installation Si39 406 28 General Information Flaring Procedure...
Page 68: ...Installation Si39 406 62 General Information Caution Caution label 3P124617 4P124614...
Page 114: ...Appendix Si39 406 108 General Information 3P135887 1...
Page 126: ...Appendix Si39 406 120 General Information 7 8 3 BS Unit BSVQ36MVJ BSVQ60MVJ 4D045338...
Page 128: ...Appendix Si39 406 122 General Information 7 9 2 Field Wiring REYQ96MTJU 3D042647A...
Page 156: ...Refrigerant Piping Si39 406 150 Installation Manual REYQ96MTJU...
Page 158: ...Refrigerant Piping Si39 406 152 Installation Manual REYQ96MTJU...
Page 230: ...Precautions for New Refrigerant R410A Si39 406 224 Precautions for New Refrigerant R410...
Page 236: ...375 Park Avenue Suite 3308 New York N Y 10152 info daikinac com www daikinac com...