Toshiba MCY-MUG0401HSW-E Service Manual page 3

7-2-3. Applied control of outdoor unit by optional P.C. board . . . . . . . . . . . . . . . . . . . . . . . . 59
7-3. Notice Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7-4. Night operation (Sound reduction control). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8 Test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8-1. Procedure and summary of test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8-2. Check items before test operation
(before powering-on)76
8-3. Check at main power-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
8-4. Address setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
8-4-1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
8-4-2. Address setup and check procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
8-4-3.
8-4-4. Check after address setup when central control system is connected . . . . . . . . . . . 103
8-4-5. Setting when connecting safety equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
8-5. Troubleshooting in test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
8-5-1. A check code is displayed on the remote controller . . . . . . . . . . . . . . . . . . . . . . . . . 128
8-5-2. No Remote Controller Response with Check Code
(Operation from the indoor remote controller is not accepted, and a check code is
displayed on the 7- segment display of the interface PC board of the
Outdoor unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
8-5-3. No Remote Controller Response without Check Code
(There is no display of a check code on the 7-segment display on the interface PC board
of the Outdoor unit, although there is indoor unit that is not accepting operation from the
indoor remote controller) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
8-5-4. Connected Indoor/Outdoor Unit Quantity Check
In checking the number of connected outdoor units and connected indoor units after
address setup, a lower number of connected units is displayed. (There are outdoor /
indoor units that do not operate in a test operation.). . . . . . . . . . . . . . . . . . . . . . . . . 131
8-6. Test operation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
8-6-1. Fan check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
8-6-2. Inspection mode (safety measures) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
8-6-3. Cooling / Heating test operation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
8-6-4. Pump-down test operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
8-7. Service support function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
8-7-1. Check function for connecting of refrigerant and control lines . . . . . . . . . . . . . . . . . 140
8-7-2. Function to start / stop (ON / OFF) indoor unit from outdoor unit . . . . . . . . . . . . . . . 142
8-7-3. Check Code Clearing Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
8-7-4. Remote controller distinction function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
8-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit. . . . . . . . . . . 152
8-7-6. Pulse Motor Valve (PMV) Forced Open/Close Function and Solenoid valve Forced ON/
OFF Function in Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
8-7-7. Pulse motor valve (PMV) forced open / close function in Shut-off Valve unit. . . . . . 155
8-7-8. Fan operation check in outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
8-7-9. Manual adjustment function of outside temperature (TO) sensor . . . . . . . . . . . . . . . 157
Address setup procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
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