Test Run With Wireless Controller; Before Test Run; Test Run - York TIWM006B21S Installation And Maintenance Manual

9.2

Test Run with Wireless Controller

NOTICE:
● When operating multiple indoor units simultaneously with the wireless controller, an optional receiver kit
is required. (This operation is NOT available if a receiver is installed with indoor units.)
● Referring to the attached wireless controller connected to the unit, the value for "Identifying Indoor Units
Installed Side by Side" shall be set to " " mode. Refer to the "Installation and Maintenance Manual" for
wireless controller for details about how to execute this setting.

9.2.1 Before Test Run

Verify that there are no problems arising from installation. Do not perform Test Run until all of the following
items have been dealt with.
Refer to the "Installation and Maintenance Manual" for the outdoor unit for details about the Test Run
operation for the outdoor unit.
(1) Check to ensure that refrigerant piping and communication cable are connected to the same refrigerant
cycle system. Failure to do this will result in impaired performance and damage to the system.
(2) Check to ensure that electrical resistance is more than 1 megohm by measuring the resistance
between ground and terminals for the various electrical components. If electrical resistance is less
than 1 megohm, do NOT operate the system until the source of any electrical current drain has been
found and repaired. Do not apply high voltage to terminals for communication cables at: (TB2 [A, B, 1
and 2]).
(3) Check to ensure that each wire is connected correctly at the power supply. If not, the unit will shut
down and the wireless controller will display the alarm code "05". In this case, check the phase for the
primary power supply shown on the caution label inside of the service cover. Then, make the proper
connections with the power supply turned OFF.
(4) Apply power to the outdoor unit(s) at least 12 hours prior to operation of the system for preheating of
the compressor oil.

9.2.2 Test Run

After installation work is completed, Test Run should be performed.
(1) Check to ensure that stop valves (gas and liquid) on the outdoor unit are fully opened.
(2) Perform Test Run according to the following procedure. Ensure that Test Run is carried out without
any problem.
NOTE:
The outdoor unit may not be operated depending upon indoor and outdoor temperature conditions.
Refer to the "Installation and Maintenance Manual" for the outdoor unit for details.
(a) Set the Test Run mode by pressing and holding the "Louver" and "On
Timer" switches simultaneously for more than three seconds. And
then set the OFF timer for two hours. The LCD displays this setting
at right.
(b) Set the operation mode by pressing the "Mode" switch.
(c) Adjust the temperature by pressing "
P5417052
" or " ".
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