Service manual
Table Of Contents
- Cover
- Table of Contents
- Packaged Air Conditioners Duct Connection Type (High static Pressure Application) FD-K Series — Cooling Only —
- Part 1 Model Name and Power Supply
- Part 2 Functions
- Part 3 Specifications
- Part 4 Remote Controller (Optional Accessories)
- Part 5 Field Piping and Wiring
- Part 6 Function and Operation
- Part 7 Troubleshooting
- 1. Maintenance Inspections
- 2. How to Handle Request for Maintenance
- 3. Troubleshooting Based on Equipment Condition
- 3.1 Troubleshooting Based on Equipment Condition
- 3.2 Equipment does not Operate
- 3.3 Fan Operates, but Compressor does not.
- 3.4 Cooling Operation Starts but Stops Immediately.
- 3.5 After Equipment Shuts Down, It cannot be Restarted for a While.
- 3.6 Equipment Operates but does not Provide Cooling.
- 3.7 Equipment Discharges White Mist
- 3.8 Equipment Produces Loud Noise or Shakes
- 3.9 Equipment Discharges Dust.
- Part 8 Removal Procedure
- Part 9 Appendix
- Packaged Air Conditioners Duct Connection Type (High static Pressure Application) FDY-K(A) Series — Heat Pump —
- Part 1 Model Name and Power Supply
- Part 2 Functions
- Part 3 Specifications
- Part 4 Remote Controller
- Part 5 Field Piping and Wiring
- Part 6 Field Setting
- Part 7 Function and Operation
- Part 8 Troubleshooting
- 1. Maintenance Inspections
- 2. How to Handle Request for Maintenance
- 3. Troubleshooting Based on Equipment Condition
- 3.1 Troubleshooting Based on Equipment Condition
- 3.2 Equipment does not Operate
- 3.3 Fan Operates, but Compressor does not.
- 3.4 Cooling/Heating Operation Starts but Stops Immediately.
- 3.5 After Equipment Shuts Down, It cannot be Restarted for a While.
- 3.6 Equipment Operates but does not Provide Cooling.
- 3.7 Equipment Operates but does not Provide Heating.
- 3.8 Equipment Discharges White Mist
- 3.9 Equipment Produces Loud Noise or Shakes
- 3.10 Equipment Discharges Dust.
- 3.11 Remote Controller LCD Displays "88".
- 4. Procedure of Self-Diagnosis by Remote Controller
- 5. Procedure of Self-Diagnosis by LED
- 6. Troubleshooting by Remote Controller Display / LED Display
- 6.1 Explanation for Symbols
- 6.2 Malfunction Code and LED Display Table
- 6.3 Failure of Indoor Unit PC Board
- 6.4 Malfunction of Heat Exchange Temperature Sensor System
- 6.5 Malfunction of Suction Air Temperature Sensor System
- 6.6 Malfunction of Remote Controller Air Thermistor
- 6.7 Actuation of Safety Device
- 6.8 Actuation of Safety Device
- 6.9 Failure of Outdoor Unit PC Board
- 6.10 High Pressure System (HPS) Malfunction
- 6.11 Low Pressure System (LPS) Malfunction
- 6.12 Malfunction of Electronic Expansion Valve
- 6.13 Discharge Pipe Temperature Malfunction
- 6.14 Malfunction of High Pressure Switch
- 6.15 Malfunction of Low Pressure Switch
- 6.16 Malfunction of Outdoor Temperature Sensor System
- 6.17 Malfunction of Discharge Pipe Temperature Sensor System
- 6.18 Malfunction of Heat Exchanger Temperature Sensor System
- 6.19 Short of Gas Malfunction
- 6.20 Reverse Phase
- 6.21 Malfunction of Transmission (Between Indoor and Outdoor Unit)
- 6.22 Malfunction of Transmission (Between Indoor Unit and Remote Controller)
- 6.23 Transmission Error Between Main Remote Controller and Sub Remote Controller
- 6.24 Failure of Field Setting Switch
- Part 9 Appendix
- Index
- Drawings & Flow Charts
Si42-107 Remote Controller
Remote Controller 127
5""9/
TEST
NOT
AVAILABLE
TEST
hr
hr
A
210
4
5
6
7
3
9
8
11
12
13
14
15
16
17
18
1
3PN02535-8L-0
Fig.1
The illustrations in this operating manual corre-
spond to the remote control format BRC1C type.
NAME AND FUNCTION OF EACH
SWITCH
AND DISPLAY ON THE
REMOTE CONTROLLER
1
ON/OFF BUTTON
Press the button and the system will start. Press
the button again and the system will stop.
2
OPERATION LAMP (RED)
The lamp lights up during operation.
3
DISPLAY “ ” (UNDER CENTRAL-
IZED CONTROL)
When this display shows, the system is
UNDER CENTRALIZED CONTROL.
(This is not a standard specification.)
4
DISPLAY“ ”“ ”“ ”(VENTILA-
TION/AIR CLEANING)
This display shows that the total heat
exchange and the air cleaning unit are in
operation (These are optional accessories).
5
DISPLAY“ ”“ ”“ ”“ ”
(OPERATION MODE)
This display shows the current OPERATION MODE.
6
DISPLAY “
TEST
” (INSPECTION/TEST
OPERATION)
When the INSPECTION/TEST OPERATION BUTTON
is pressed, the display shows the system mode is in.
7
DISPLAY “ ” (PROGRAMMED TIME)
This display shows the PROGRAMMED TIME
of the system start or stop.
A
hr
hr
14
INSPECTION/TEST OPERATION BUTTON
This button is used only by qualified service
persons for maintenance purposes.
15
PROGRAMMING TIME BUTTON
Use this button for programming “START and/
or STOP” time.
16
TEMPERATURE SETTING BUTTON
Use this button for SETTING TEMPERATURE.
17
FILTER SIGN RESET BUTTON
Not applied on this model.
18
OPERATION MODE SELECTOR BUTTON
Press this button to select OPERATION MODE.
NOTE
For the sake of explanation, all indications are
shown on the display in Figure 1 contrary to
actual running situations.
3PN02535-8L-3
8
DISPLAY “ ” (SET TEMPERATURE)
This display shows the set temperature.
9
DISPLAY “ ” (TIME TO CLEAN AIR FILTER)
Not applied on this model.
10
DISPLAY “ ” (DEFROST)
11
DISPLAY “ ”
If indoor unit does not have a function, this
display is indicated when pressing buttons for
the function.
12
TIMERMODESTART/STOPBUTTON
13
TIMER ON/OFF BUTTON
C
NOT
AVAILABLE