Daikin VRVIII-S, Service Manual

Page: 264 / 266

SiENBE34-703
Drawings & Flow Charts iii
Drawings & Flow Charts
A
abnormal discharge pipe temperature .................147
actuation of high pressure switch .........................139
actuation of low pressure sensor .........................141
address duplication of central remote control ......176
address duplication, improper setting ..................186
C
centralized control group no. setting ......................80
brc1c type ........................................................80
brc4c type ........................................................81
brc7c type ........................................................81
brc7e type ........................................................81
group no. setting example ...............................81
check for causes of drop in low pressure .............194
check for causes of rise in high pressure .............193
check for fan motor connector ..............................195
check operation ......................................................67
check operation not executed ..............................168
check work prior to turn power supply on ...............66
compressor motor lock .........................................143
contents of control modes ......................................82
how to select operation mode ..........................83
cooling operation fan control ..................................44
D
display “under host computer integrate control”
blinks (repeats double blink) .........................192
display “under host computer integrate control”
blinks (repeats single blink) ...........................189
display of sensor and address data .....................114
drain level above limit ...........................................131
drain pump control .................................................57
when the float switch is tripped and “af”
is displayed on the remote control .......58
when the float switch is tripped during
heating operation ................................58
when the float switch is tripped while the
cooling thermostat is off ......................57
when the float switch is tripped while the
cooling thermostat is on ......................57
E
error of external protection device ........................122
excessive number of indoor units .........................175
F
fan motor (m1f) lock, overload .............................126
freeze prevention ...................................................62
functional parts layout ............................................38
H
high pressure protection control .............................52
high voltage of capacitor in main inverter circuit ..163
I
improper combination of optional controllers
for centralized control ................................... 184
inverter compressor abnormal ............................. 159
inverter current abnormal .................................... 160
inverter protection control ...................................... 55
inverter start up error ........................................... 161
L
louver control for preventing ceiling dirt ................. 59
low pressure drop due to refrigerant shortage
or electronic expansion valve failure ............ 164
low pressure protection control ....................... 53, 54
M
malfunction of capacity determination device ...... 132
malfunction of discharge pipe thermistor (r2t) ..... 150
malfunction of drain level control system (33h) ... 124
malfunction of high pressure sensor ................... 155
malfunction of inverter radiating fin temperature rise .. 158
malfunction of low pressure sensor ..................... 156
malfunction of moving part of electronic
expansion valve (20e) .................................. 129
malfunction of moving part of electronic
expansion valve (y1e, y3e) .......................... 145
malfunction of outdoor unit fan motor .................. 144
malfunction of subcooling heat exchanger
gas pipe thermistor (r4t) ............................... 154
malfunction of swing flap motor (ma) .................. 127
malfunction of system, refrigerant system
address undefined ........................................ 180
malfunction of thermistor (r1t) for outdoor air ...... 149
malfunction of thermistor (r1t) for suction air ....... 135
malfunction of thermistor (r2t) for heat exchanger .. 133
malfunction of thermistor (r3t) for gas pipes ........ 134
malfunction of thermistor (r3t, r5t) for
suction pipe 1, 2 ........................................... 151
malfunction of thermistor (r6t) for outdoor
unit heat exchanger ...................................... 152
malfunction of thermistor (r7t) for outdoor
unit liquid pipe .............................................. 153
malfunction of thermistor for discharge air .......... 136
malfunction of thermostat sensor in remote control .... 137
malfunction of transmission between central
remote control and indoor unit ..................... 177
malfunction of transmission between
centralized remote control and indoor unit ... 181
malfunction of transmission between indoor
and outdoor units in the same system ......... 173
malfunction of transmission between indoor
units and outdoor units ................................. 169
malfunction of transmission between inverter
and control pc board .................................... 162
malfunction of transmission between main and
sub remote controls ...................................... 172