Advertisement
Quick Links
SERVICE
INSTRUCTIONS
No. SI-18AW-2
MULTI SPLIT TYPE
AIR CONDITIONER
• 2-ROOM MULTI
0AO17A
0AO19A/R
0AO20R
0AO24A/R
• 3-ROOM MULTI
0AO20A
• 4-ROOM MULTI
0AO32A/R
• 5-ROOM MULTI
0AO24A
•
WIRELESS REMOTE
•
CONTROL MODEL
CONTENTS
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION OF FUNCTIONS . . . . . . . . . . . . . . . . . . 3
DEFROSTING OPERATION FLOW CHART . . . . . . . 9
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . 15
INSTALLATION PRECAUTION . . . . . . . . . . . . . . . . 19
Advertisement
Related Manuals for Fujitsu AO17A
Summary of Contents for Fujitsu AO17A
-
Page 1: Table Of Contents
SERVICE INSTRUCTIONS MULTI SPLIT TYPE AIR CONDITIONER • 2–ROOM MULTI 0AO17A 0AO19A/R 0AO20R 0AO24A/R • 3–ROOM MULTI 0AO20A • 4–ROOM MULTI 0AO32A/R • 5–ROOM MULTI 0AO24A • WIRELESS REMOTE • CONTROL MODEL CONTENTS DIMENSIONS ........1 DESCRIPTION OF FUNCTIONS . -
Page 2: Dimensions
DIMENSIONS 1. MULTI SPLIT TYPE ( WALL MOUNTED TYPE ) INDOOR UNIT (Unit : mm) 2. MULTI SPLIT TYPE ( CASSETTE TYPE ) INDOOR UNIT ( 650) (Grille measurement) (Hanging bolt position) Drain pipe (I.D. ø32) (Ceiling opening measurement) – 1 –... - Page 3 3. OUTDOOR UNIT (Unit : mm) 3-1. AO17A, AO19A/R, AO20A (2-ROOM, 3-ROOM) 3-2. AO20R, AO24A/R (2-ROOM, 5-ROOM) 312.5 (Fan center) 3-3. AO32A/R (4-ROOM) – 2 –...
-
Page 4: Description Of Functions
DESCRIPTION OF FUNCTIONS 1. THREE MINUTES DELAY FUNCTION 5. 4-WAY VALVE DELAY SWITCHING (3ST) FUNCTION [REVERSE CYCLE MODEL] (1) The outdoor unit is not operated for three minutes after the power plug is inserted into the socket. When heating operation is stopped, the 4-way valve is (Compressor protection, breaker off prevention, etc.) stopped 3 minutes later. - Page 5 r SET TEMP. BUTTONS unit will switch to test operation mode, and the Indoor Unit's OPERATION Indicator Lamp and TIMER • Press the SET TEMP. buttons Indicator Lamp will begin to flash simultaneously. button : Press to raise the thermostat setting. •...
- Page 6 becomes slower. u MANUAL AUTO OPERATION *Fan: Use the MANUAL AUTO operation in the event the 1. HEAT & COOL MODEL (REVERSE CYCLE) Remote Control Unit is lost or otherwise unavailable. The fan alternately turns on and off ; when on, the fan runs at the low fan speed.
- Page 7 • To Stop Air Conditioner Operation while the Timer • Use the air direction adjustments within the ranges is Operating shown above. • The vertical air flow direction is set automatically as Press the START/STOP button. shown, in accordance with the type of operation selected.
- Page 8 During Cooling/Dry operation : • To Change Operating Conditions If you wish to change operating conditions (Mode, Fan When the SLEEP timer is set, the thermostat setting is Speed, Thermostat Setting), after making the timer automatically raised 1°C every sixty minutes. When the setting wait until the entire display reappears, then thermostat has been raised a total of 2°C, the thermostat press the appropriate buttons to change the operating...
- Page 9 mode will not change even if the room 12. OPERATING MODES temperature changes. (1) "AUTO" position r If the START/STOP button is pressed to • HEAT & COOL MODEL (REVERSE CYCLE) recommence operation within two hours after stopping automatic operation, the unit will begin q Depending on the room temperature at the time operating from the same mode as before.
-
Page 10: Defrosting Operation Flow Chart
DEFROSTING OPERATION FLOW CHART (REVERSE CYCLE MODEL) 1. AO19R (2-ROOM) Meaning of symbols O.L.P. (Overload Protector) is operating : If the indoor heat exchanger temperature is too high, the outdoor fan is stopped to prevent the former from rising. : Indoor heat exchanger temperature (Indoor pipe thermistor detector) : Room temperature (Room thermistor detector) DEFROSTING START Table 1 : Temperature difference between... - Page 11 From A From B To C To D Is [(Tc)n-(Tc)n+1] in the range of +0.6 to +2.1 deg. ? Is [(Tc)n-(Tc)n+1] above +2.1 deg. ? Counter A +1 Does counter C Reset indicate 3 times Counter B +1 counters or more ? A, B, and C Is integrated operating time of...
- Page 12 From E Is 30-second mask applied ? 4-Way valve turned off Is 6-second mask applied ? Compressor turned on Is DEFROST timer time up ? Compressor turned off Is 30-second mask applied ? 4-Way valve turned on Is 6-second mask applied ? •...
- Page 13 2. AO20R / 24R / 32R (2-ROOM, 4-ROOM) OUTDOOR heat exchanger temperature : T at T = -12°C Defrosting start [Compressor] OFF [Fan motor] OFF Defrosting end condition established? =12°C or 3 secs mask 15 min [Expansion valve] [Compressor] OFF number of pulses change 400 3 secs mask...
- Page 14 Defrosting end (A) When [both units] have independent [defrosting end condition] and the [defrosting end condition] of [both units] is established, [defrosting operation] is ended. However, when only one [unit] is performing [defrosting operation], and the [defrosting end condition] of that [unit] is established, [defrosting operation] is ended. (B) The electronic expansion valve number of pulses at the start of normal operation after the end of defrosting operation shall be the number of pulses calculated from the expression above.
- Page 15 Appendix table 1 Cooling initial number Heating initial number Number of pulses at Model switching of pulses of pulses defrosting Appendix table 2 Appendix table 3 Defrosting start Defrosting end Model switching Model switching temperature temperature – 8°C 8°C – 12°C 12°C Appendix table 4 Outside air temperature T...
-
Page 16: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. WORKING INSPECTION (When cooling) SYMPTOM POSSIBLE CAUSES REMEDY (1) Indoor unit evaporator is Gas leakage Check leaking part, and charge coated with frost. gas. Clogged filter a. Frost near inlet Clean filter. Low ambient temperature b. Frost all over (less than 20°C) Check ambient temperature. - Page 17 NOTE : [ ] Ref. No. of 7,000 BTU/H Model CHECK 1 CHECK 4 Symptom No operation Symptom Display does not light correctly. Remote control is not received. Preliminary checks ∗ Is display PC board connector CN9 inserted Preliminary checks ∗...
- Page 18 CHECK 8 • 9,000 & 12,000 & 14,000 & 17,000 BTU/H Models Room temperature thermistor ∗ Room temperature thermistor abnormal ∗ CN12 disconnected. CN12 No.1-2 shorted. ∗ Thermistor faulty 0.1 sec ∗ R32 open, shorted Operation C26, C32 shorted Lamp R14, R15 open ∗...
- Page 19 4. Troubleshooting check table AO20R / 24R (2-ROOM) Trouble and protection indicate (Indoor unit) Operation lamp : Red lamp Timer lamp : Green lamp : 0.1s ON/OFF repeated : 0.5s ON/OFF repeated LED Indication Error contents Red lamp (2 times) Indoor unit Thermistor (room temp.) error Green lamp Red lamp...
-
Page 20: Installation Precaution
INSTALLATION PRECAUTIONS 1. DRAIN PIPE INSTALLATION 2. FORMING THE DRAIN HOSE AND PIPE (REVERSE CYCLE MODEL) [Rear piping, Right piping, Bottom piping] Since drain water flows from the outdoor unit during • Install the indoor unit piping in the direction of the wall heating and cooling operation, when it is installed at a hole and bind the drain hose and pipe together with high place, install the drain pipe as shown in Fig. - Page 21 Fig. 7 3. RECEIVER TANK (Reverse cycle model Top hooks only) : 4-ROOM MULTI type The “Receiver tank” is not used for cooling models. (When only 1 or 2 indoor units are connected) A “Receiver tank” is necessary when all indoor units (the max.
- Page 22 5. PUMP DOWN Charging To charge the refrigerant, proceed as described (Draining outdoor unit refrigerant) below. When the connection pipe must be disconnected or the (1) Check that the refrigeration cycle is connected unit is moved to an another place, the refrigerant in the perfectly.
- Page 23 (2) 2-ROOM MULTI type (AO20R / 24R) 10.TEMPERATURE INDICATION The temperature set on the remote controller may differ Fig. 16 from the temperature at the installation place, [Heat & Cool model (Reverse cycle model)] distribution of the room temperature and sun-light approaching condition, etc..
- Page 24 (4) 3-ROOM MULTI type (6) 5-ROOM MULTI type OUTDOOR UNIT Fig. 20 Fig. 18 UNIT A1 UNIT A2 UNIT B POWER Terminal block Cord clamp Terminal INDOOR UNIT block UNIT A1 UNIT A2 Terminal block UNIT B Terminal block 50 Hz A.C. Terminal block 220 - 240 V Power...
- Page 25 ∗ Poor Flaring Fig. 21-3 Screw with special The figures shown below cause gas leakage. washer Screw with special Fig. 24 Round terminal washer Measurement Round Measurement Offset shortened terminal angle enlarged Terminal board Wire Wire Internal Crack Notched scratches For strand wiring (2) Flare Nut Tightening (1) Cut the wire end with a wire cutter or wire-cutting...
- Page 26 B. Cleaning : Never allow dust or dirt to enter the unit. q When removing burrs from the flare nuts, point the pipe opening downward. w When passing the copper pipe through a through-hole, cover the opening with a cap or vinyl tape.
- Page 27 MEMO – 26 –...
- Page 28 0105J1869 June 2001 Printed in Japan...