46
5-4. Test operation of indoor unit
▼
Check function for operation of indoor unit (Functions at indoor unit side)
This function is provided to check the operation of the indoor unit singly without communication with the remote
controller or the outdoor unit. This function can be used regardless of operation or stop of the system.
However, if using this function for a long time, a trouble of the equipment may be caused. Limit using this function
within several minutes.
[How to operate]
1) Short-circuit CHK pin (CN71 on the indoor P.C. board).
The operation mode differs according to the indoor unit status in that time.
Normal time: Both float SW and fan motor are normal.
Abnormal time: Either one of float SW or fan motor is abnormal.
2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition to
short-circuit of CHK pin (CN71 on the indoor P.C. board), the minimum opening degree (30 pls) can be set
to the indoor PMV only.
When open DISP pin, the maximum opening degree (1500 pls) can be obtained again.
[How to clear]
Open CHK pin. While the system is operating, it stops once but automatically returns to operation after several
minutes.
• To exchange the indoor PMV coil, set the indoor PMV to Max. opening degree.
• For the detailed positions of CHK pin (CN71 on indoor P.C. board) and DISP pin (CN72 on indoor P.C. board),
refer to the indoor P.C. board MCC-1570.
Short-circuit of CHK pin
Normal time
Abnormal time
DISP pin open
DISP pin short circuit
Fan motor
(H)
(H)
Stop
Indoor PMV (*)
Max. opening degree (1500 pls)
Min. opening degree (30 pls)
Min. opening degree (30 pls)
Louver
Horizontal
Horizontal
Immediate stop
Drain pump
ON
ON
ON
Communication
All ignored
All ignored
All ignored
P.C. board LED
Lights
Lights
Flashes
Summary of Contents for A03-009
Page 149: ...148 ...
Page 153: ...152 9 2 1 Way cassette type SH AP015 AP018 AP024 ...
Page 161: ...160 9 4 Slim duct type MMD AP0074SPH AP0094SPH AP0124SPH AP0154SPH AP0184SPH ...
Page 165: ...164 9 5 Concealed duct standard type MMD AP0074BH AP0094BH AP0124BH AP0154BH AP0184BH ...
Page 166: ...165 ...
Page 169: ...168 MMD AP0244BH AP0274BH AP0304BH AP0364BH AP0484BH ...
Page 170: ...169 ...
Page 173: ...172 MMD AP0564BH ...
Page 174: ...173 ...
Page 177: ...176 E Parts ...
Page 179: ...178 9 6 Concealed duct high static pressure type MMD AP0184H AP0244H AP0274H AP0364H AP0484H ...
Page 183: ...182 MMD AP0724H AP0964H ...
Page 184: ...183 ...
Page 187: ...186 9 7 Ceiling type MMC AP0154H AP0184H AP0244H AP0274H ...
Page 190: ...189 MMC AP0364H AP0484H ...
Page 194: ...193 9 8 Floor standing type MMF AP0154H AP0184H AP0244H AP0274H ...
Page 195: ...194 MMF AP0154H AP0184H AP0244H AP0274H ...
Page 198: ...197 MMF AP0364H AP0484H AP0564H ...
Page 199: ...198 MMF AP0364H AP0484H AP0564H ...
Page 203: ...202 9 9 Floor standing concealed type MML AP0074BH AP0094BH AP0124BH AP0154BH AP0184BH ...
Page 206: ...205 MML AP0244BH ...
Page 209: ...208 9 10 Floor standing cabinet type MML AP0074H AP0094H AP0124H AP0154H AP0184H ...
Page 210: ...209 MML AP0074H AP0094H AP0124H AP0154H AP0184H ...
Page 213: ...212 MML AP0244H ...
Page 214: ...213 MML AP0244H ...