Controller
Electrical Control System
191
8. Adjust button: Set indoor temperature up. If press and hold on, it will increase at 1degree per 0.5
second.
9. Adjust button: Set indoor temperature down. if press and hold on, it will decrease at 1degree per 0.5
Second.
10. Swing button: First press, start swing function; second press, stop swing. (Match to some model with
swing function).
11. Economy operation button: press this button, the indoor unit operates in economy mode, press again,
exit this mode (it may be ineffective for some models)
12. Fan speed button: press this button consecutively; the fan speed will circle as follow:
13. Lock button (hidden): When you push the LOCK button, all current settings are locked in and the wire
controller does not accept any operation except that of the LOCK button. Use the lock mode when you
want to prevent setting from being changed accidentally or play fully. Push the LOCK button again when
you want to cancel the LOCK mode.
Name and function of LCD on the wire
controller
1. Operation mode indication: When press” MODE” button, the following mode can be selected in circle.
Auto Cool Dry Heat Fan only Auto.
Auto
→
Cool
→
Dry
→
Heat
→
Fan only
→
Auto
For cooling only model, heat mode is skipped.
2. Timer: When adjust setting on time or only on time is set, the “ON” is lighted. When adjust setting off
time or only off time is set, the” OFF" is lighted. If on and off timer are both set, the “ON” and “OFF” are
both lighted.
3. Follow me function: There is a temperature sensor inside the wire controller, after setting temperature, it
will compare the two temperatures, and the space of wire controller will be the same as setting
temperature. It is available under cooling, heating, auto mode.
4 ON/OFF indication: When it is on, the icon display, otherwise it is extinguished.
5. Fan speed indication: There are four fan modes: low, middle, high, auto. For some models, no middle
fan then the middle fan is seen as high speed.
6. Lock: When the "LOCK" button is pressed, the icon appears and other buttons is unable, press again,
the icon disappears.
7. Temperature display zone: Generally it displays setting temperature; it can be adjusted by press
temperature button
▲
and
▼
.But in fan mode, no display here.
Remark:
Summary of Contents for LCAC
Page 1: ...SERVICE MANUAL english LCAC AIR CONDITIONING SYSTEMS...
Page 2: ......
Page 4: ...ii General Information...
Page 15: ...Service Space 12 Indoor Units 3 Service Space 1000mm 1000mm 1000mm 1000m m...
Page 17: ...Air Velocity Distributions Reference Data 14 Indoor Units 36 42K Cooling Heating...
Page 18: ...Air Velocity Distributions Reference Data Indoor Units 15 50 60K Cooling Heating...
Page 23: ...Field Wiring 20 Indoor Units 9 Field Wiring...
Page 24: ...Wiring diagram Indoor Units 21 10 Wiring diagram V4MCI 24 V4MCI 36 V4MCI 42 V4MCI 50 V4MCI 60...
Page 31: ...Static Pressure 28 Indoor Units 4 Static Pressure V4MDI 12 V4MDI 18...
Page 32: ...Static Pressure Indoor Units 29 V4MDI 24...
Page 33: ...Static Pressure 30 Indoor Units V4MDI 36 V4MDI 42 V4MDI 50 V4MDI 60...
Page 39: ...Wiring Diagram Indoor Units 37...
Page 43: ...Service Space 42 Indoor Units 3 Service Space...
Page 52: ...Wiring Diagram Indoor Units 51 10 Field Wiring...
Page 53: ...Wiring Diagram 52 Indoor Units 11 Wiring diagram V4MKI 18...
Page 54: ...Ceiling Floor Type Indoor Units 53 V4MKI 36 V4MKI 24...
Page 55: ...Wiring Diagram 54 Indoor Units...
Page 59: ...Service Space 58 Indoor Units 3 Service Space...
Page 63: ...Wiring Diagram 62 Indoor Units 9 Field Wiring V4MCRI 12 V4MCRI 18...
Page 64: ...Field Wiring Indoor Units 63 10 Field Wiring V4MCRI 12 V4MCRI 18...
Page 68: ...Console Type Console Type 67 2 Dimensions 16 Drain pipe 195 Hanging arm Unit mm 700 600 210...
Page 69: ...Console Type 68 Console Type 3 Service Space...
Page 74: ...Console Type Console Type 73 9 Field Wiring V4MLI 12 V4MLI 18...
Page 75: ...Console Type 74 Console Type 10 Field Wiring V4MLI 12 V4MLI 18...
Page 79: ...Service Space 78 Floor standing Type 3 Service Space...
Page 80: ...Wiring Diagrams Floor standing Type 79 4 Wiring Diagrams V4MFI 24...
Page 85: ...Field Wiring 84 Floor standing Type 9 Field Wiring...
Page 86: ...Wiring diagram Floor standing Type 85 10 Wiring diagram V4MFI 24...
Page 90: ...Service Space Floor standing Type 89 3 Service Space...
Page 96: ...Field Wiring Floor standing Type 95 9 Field Wiring...
Page 97: ...Field Wiring 96 Floor standing Type 10 Field Wiring V1MFI 50B V1MFI 66B...
Page 100: ...Dimensions 100 Outdoor Units Model KBtu h Unit mm W D H W1 A B 50 60 952 415 1333 1045 634 404...
Page 103: ...4 Electric Characteristics U4MRS 12 U4MRS 18 U4MRS 24 U4MRS 36 U4MRT 42 U4MRT 50 U4MRT 60...
Page 106: ...Wiring diagram 106 Outdoor Units 7 Wiring diagram U4MRS 12 U4MRS 18...
Page 107: ...Wiring diagram Outdoor Units 107 U4MRS 24 U4MRS 36...
Page 108: ...Wiring diagram Outdoor Units 109 U4MRT 42 U4MRT 50 U4MRT 60...
Page 154: ...Troubleshooting Electrical Control System 157 2 1 8 Display board of Floor standing...
Page 168: ...Troubleshooting Electrical Control System 171 2 4 4 3 J4 malfunction J4...
Page 177: ...Troubleshooting 180 Electrical Control System 2 4 4 13 J0 malfunction J0...
Page 190: ...Scan here to download the latest version of this manual LCAC AIR CONDITIONING SYSTEMS...