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Service Section Service Section Technical Training Technical Training Technical Training Technical Training Technical Training Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller Universal Controller

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SLIDE 1

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Service Section Service Section Technical Training Technical Training

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SLIDE 2

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Universal Controller Universal Controller – – U1.4 U1.4

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SLIDE 3

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

WM WM-

  • FR

FR CC CC-

  • C/CR

C/CR CE CE-

  • D/DR

D/DR CK CK-

  • A/AR

A/AR CK CK-

  • C/CR

C/CR

PCB Layout

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SLIDE 4

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

LED Display Board LED Display Board On / OFF Switch Board On / OFF Switch Board OR OR SLM3 SLM3 Netware2 Netware2

PCB Connection Diagram (WM-FR)

CN4 CN4 CN3 CN3

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SLIDE 5

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

PCB Connection Diagram (CC,CK,CE)

OR OR SLM3 SLM3 Netware2 Netware2 LED Display Board LED Display Board

CN4 CN4 CN3 CN3 CN2 CN2

Connected to Connected to Twin Fan Board Twin Fan Board

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SLIDE 6

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 1. MODE Selection
  • 1. MODE Selection

Modes can be selected via the value of resistor RMODE Modes can be selected via the value of resistor RMODE MODES MODES AUTO AUTO COOL COOL DRY DRY HEAT HEAT FAN FAN RMODE RMODE AP AP X X X X X X X X X X 3K 3K EC EC X X X X X X 110K 110K X : Modes available X : Modes available

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SLIDE 7

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 2. Auto Random Restart
  • 2. Auto Random Restart
  • Auto random restart with last state memory

Auto random restart with last state memory

  • Shorted at JH/JP1 jumper at main board

Shorted at JH/JP1 jumper at main board (JP1 (JP1 -

  • WM, JH

WM, JH -

  • others)
  • thers)
  • Remove the shunt jumper to have non

Remove the shunt jumper to have non-

  • auto

auto restart restart

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SLIDE 8

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

WM WM-

  • FR

FR

  • 2. Auto Random Restart
  • 2. Auto Random Restart
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SLIDE 9

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

CC,CK,CE CC,CK,CE

  • 2. Auto Random Restart
  • 2. Auto Random Restart
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SLIDE 10

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 3. Power Up Settings
  • 3. Power Up Settings

Power Up Power Up JH/JP1 Shorted JH/JP1 Shorted JH/JP1 Opened JH/JP1 Opened

User Set Mode User Set Mode

User Set Temperature User Set Temperature User Set Fan Speed User Set Fan Speed

Mode = OFF Mode = OFF

Set Temperature = 24°C Set Temperature = 24°C Fan Speed = High Fan Speed = High

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SLIDE 11

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 4. Unit ON / OFF
  • 4. Unit ON / OFF

3 ways to turn on / off the system: 3 ways to turn on / off the system: (1) On/Off Triggering (1) On/Off Triggering

  • Emergency On/Off Button

Emergency On/Off Button * System mode setting will rotate in the following * System mode setting will rotate in the following sequence sequence Heat pump Heat pump …….>Cool>Heat>Off>….. …….>Cool>Heat>Off>….. Cooling Cooling …….>Cool>Off>……. …….>Cool>Off>…….

  • On/Off button on handsets

On/Off button on handsets

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SLIDE 12

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 4. Unit ON / OFF
  • 4. Unit ON / OFF

(2) Delay timer (2) Delay timer

  • Pressing the On/Off will reset the timer to 0 hour

Pressing the On/Off will reset the timer to 0 hour (3) Real time On/Off Timer (3) Real time On/Off Timer

  • Based on internal real time clock

Based on internal real time clock

  • The timer settings are kept so that similar switches can

The timer settings are kept so that similar switches can

  • ccur 24 hours later.
  • ccur 24 hours later.
  • If emergency ON/OFF switch being press, then the timer

If emergency ON/OFF switch being press, then the timer will be reset. will be reset.

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SLIDE 13

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 5. Sleep Function
  • 5. Sleep Function
  • Only available for COOL, HEAT & AUTO mode

Only available for COOL, HEAT & AUTO mode

  • This function will increase (cooling mode) or decrease

This function will increase (cooling mode) or decrease (Heating mode) the set temperature with time (Heating mode) the set temperature with time

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SLIDE 14

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 5. Sleep Function (Cool Mode)
  • 5. Sleep Function (Cool Mode)

SLEEP set on SLEEP set on SLEEP set off SLEEP set off Ts Ts Ts + 1/2 Ts + 1/2 Ts + 1 Ts + 1 Ts + 2 Ts + 2 0 1/2 1 2 0 1/2 1 2 Hours Hours

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SLIDE 15

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 5. Sleep Function (Heat Mode)
  • 5. Sleep Function (Heat Mode)

SLEEP set on SLEEP set on SLEEP set off SLEEP set off

Ts Ts Ts Ts -

  • 1

1 Ts Ts -

  • 3

3 Ts Ts -

  • 2

2 0 1/2 1 2 Hours

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SLIDE 16

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections
  • Compressor

Compressor

  • Indoor Coil Anti Freeze

Indoor Coil Anti Freeze

  • Abnormal Outdoor Condition

Abnormal Outdoor Condition

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SLIDE 17

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections

Compressor Compressor

(a) 3 minutes Minimum OFF time (a) 3 minutes Minimum OFF time Memory backup option not selected Memory backup option not selected (JP1 opened) (JP1 opened)

  • Within 2 minutes of outage, the compressor can only cut in 2

Within 2 minutes of outage, the compressor can only cut in 2 minutes after power up, subject to thermostat cut in mode minutes after power up, subject to thermostat cut in mode

  • After 2 minutes of outage, the compressor can cut in

After 2 minutes of outage, the compressor can cut in immediately after power up again, subject to thermostat cut in immediately after power up again, subject to thermostat cut in mode mode

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SLIDE 18

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections

Compressor Compressor

(a) 3 minutes Minimum OFF time (a) 3 minutes Minimum OFF time Memory backup option selected Memory backup option selected (JP1 Shorted) (JP1 Shorted)

  • Within 2 minutes of outage, the compressor can only cut in 120

Within 2 minutes of outage, the compressor can only cut in 120 seconds to 150 seconds after power up, subject to thermostat seconds to 150 seconds after power up, subject to thermostat cut in mode cut in mode

  • After 2 minutes of outage, the compressor can cut in 4 seconds

After 2 minutes of outage, the compressor can cut in 4 seconds to 60 seconds after power up again, subject to thermostat cut in to 60 seconds after power up again, subject to thermostat cut in mode mode

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Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections

Compressor Compressor

  • 140 seconds Minimum Run Time

140 seconds Minimum Run Time

  • Overload Protection

Overload Protection COOL, AUTO COOL and DRY COOL, AUTO COOL and DRY

OD coil temp OD coil temp

Comp & OD Fan Comp & OD Fan 68 68 o

  • C

C ON ON OFF OFF HEAT, AUTO HEAT HEAT, AUTO HEAT

ID coil temp ID coil temp

Comp, OD Fan Comp, OD Fan & 4WV & 4WV 68 68 o

  • C

C ON ON OFF OFF

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SLIDE 20

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections

Compressor Compressor

  • Hardware switch detection

Hardware switch detection

  • A counter is increased by one during the first

A counter is increased by one during the first cycle of thermostat cycle of thermostat

  • The counter will be reset after 3minutes

The counter will be reset after 3minutes

  • If the counter > 5, the unit will be declare

If the counter > 5, the unit will be declare compressor overload protection compressor overload protection

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SLIDE 21

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections

Outdoor fan speed control Outdoor fan speed control

  • Heat mode

Heat mode

  • Outdoor fan will be cut off, if the indoor coil

Outdoor fan will be cut off, if the indoor coil temperature exceed 57 temperature exceed 57 o

  • C

C

  • The outdoor fan may resume when indoor coil

The outdoor fan may resume when indoor coil temperature < 50 temperature < 50 o

  • C

C

  • The indoor fan speed will be forced to one speed

The indoor fan speed will be forced to one speed higher when indoor coil temperature > 55 higher when indoor coil temperature > 55 o

  • C

C

  • The indoor fan speed will resume user set speed

The indoor fan speed will resume user set speed when indoor coil temperature < 48 when indoor coil temperature < 48 o

  • C

C

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SLIDE 22

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Features

  • 6. Protections
  • 6. Protections

Indoor Coil Anti freeze Indoor Coil Anti freeze

  • Available in COOL and DRY mode

Available in COOL and DRY mode

  • IF

IF ID Coil Temp reaches 1°C and below for at least 4 min ID Coil Temp reaches 1°C and below for at least 4 min AND AND compressor has run for at least 10 minutes compressor has run for at least 10 minutes 1 1 o

  • C

C Comp & OD Fan Comp & OD Fan OFF OFF ON ON 10 10 o

  • C

C Comp & OD Fan Comp & OD Fan OFF OFF ON ON

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SLIDE 23

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 7. Cool mode
  • 7. Cool mode
  • Compressor will

Compressor will cut in cut in if Room Temp. if Room Temp. -

  • Setting Temp > 0.5

Setting Temp > 0.5o

  • C

C

  • Compressor will

Compressor will cut out cut out if Room Temp if Room Temp -

  • Setting Temp < 1

Setting Temp < 1o

  • C

C

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SLIDE 24

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 8. Heat mode
  • 8. Heat mode
  • Compressor will

Compressor will cut in cut in if Room Temp. if Room Temp. -

  • Setting Temp < 1

Setting Temp < 1o

  • C

C

  • Compressor will

Compressor will cut out cut out if Room Temp if Room Temp -

  • Setting Temp > 1.5

Setting Temp > 1.5o

  • C

C

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SLIDE 25

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 9. Auto Fan
  • 9. Auto Fan –

– Cool Mode Cool Mode

AUTO Fan Speed during COOL mode AUTO Fan Speed during COOL mode H M L M H M L L M H H M L M H M L L M H

COMP ON COMP OFF COMP COMP ON COMP OFF COMP ON ON

+1.5 +1.5 +1.0 +1.0 +0.5 +0.5 Ts Ts

  • 0.5

0.5

  • 1.0

1.0

  • C

C Tr Tr

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SLIDE 26

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 10. Auto Fan
  • 10. Auto Fan –

– Heat Mode Heat Mode

Tr Tr

AUTO Fan Speed during HEAT mode AUTO Fan Speed during HEAT mode M H M L M H M L M H M L M H M L

HEATER/ HEATER/ HEATER/COMP ON HEATER/COMP ON COMP OFF COMP OFF

+1.5 +1.5 +1.0 +1.0 Ts Ts

  • 1.0

1.0

  • 2.0

2.0

  • C

C

HEATER/ HEATER/ COMP OFF COMP OFF

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SLIDE 27

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

When the compressor cuts out and the room When the compressor cuts out and the room temperature is within set temperature temperature is within set temperature

  • 11. Hot Keep Cycle
  • 11. Hot Keep Cycle
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SLIDE 28

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Model: WM Model: WM-

  • FR

FR

  • 3 selection available at the slide switch on the On/Off switch

3 selection available at the slide switch on the On/Off switch board board

  • Factory Preset at OFF option

Factory Preset at OFF option

  • 11. Hot Keep Cycle
  • 11. Hot Keep Cycle
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SLIDE 29

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Model: CC,CK,CE Model: CC,CK,CE

  • Located at CN3 location on the PCB

Located at CN3 location on the PCB Non ducted model: Non ducted model: Factory setting is (a) Factory setting is (a)-

  • Fan OFF

Fan OFF Ducted model: Ducted model: Factory setting is (c) Factory setting is (c)-

  • Fan ON

Fan ON

CN3 CN3

  • 11. Hot Keep Cycle
  • 11. Hot Keep Cycle
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SLIDE 30

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 11. Hot Keep Cycle
  • 11. Hot Keep Cycle

The options are : Option CN3 Connector Fan On Option Removed Fan Off Option Remained Interval Option Remained (with 12K resistor removed)

CN3 CN3 12K resistor 12K resistor

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SLIDE 31

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • a. if indoor coil temperature > 40°C, indoor fan run at set speed
  • b. if indoor coil temperature crosses 37°C, indoor fan run at low

speed

  • c. if indoor coil temperature < 18°C, indoor fan will stop

11.1 Fan ON Option 11.1 Fan ON Option

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SLIDE 32

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

11.2 Fan OFF Option 11.2 Fan OFF Option

  • A. if indoor coil temperature >
  • A. if indoor coil temperature > 40°C

40°C, indoor fan run at set , indoor fan run at set speed speed

  • b. if indoor coil temperature crosses
  • b. if indoor coil temperature crosses 37°C

37°C, indoor fan run at , indoor fan run at low speed low speed

  • c. if indoor coil temperature <
  • c. if indoor coil temperature < 30°C

30°C, indoor fan stop , indoor fan stop

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SLIDE 33

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

11.3 Fan Interval Option 11.3 Fan Interval Option

30sec 30sec 120sec 120sec 30sec 30sec Fan ON Fan ON Fan ON Fan ON Fan OFF Fan OFF Time Time

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SLIDE 34

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 12. 4
  • 12. 4-
  • Way Valve Changing

Way Valve Changing

  • To operate in Heating mode, the 4 way valve must turn ON

To operate in Heating mode, the 4 way valve must turn ON

  • The 4 Way Valve can only changed from ON to OFF or vice

The 4 Way Valve can only changed from ON to OFF or vice versa 55 +/ versa 55 +/-

  • 5 seconds after the compressor has cut out.

5 seconds after the compressor has cut out.

  • Then, the compressor may cut in 4 seconds later.

Then, the compressor may cut in 4 seconds later.

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SLIDE 35

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 13. Defrost Mode
  • 13. Defrost Mode
  • Can only be operate through HEAT mode

Can only be operate through HEAT mode

  • ‘Defrost Timer’ start counting when the OD coil sensor measured

‘Defrost Timer’ start counting when the OD coil sensor measured below +3 below +3 o

  • C

C

  • Upon crossing + 5

Upon crossing + 5 o

  • C

C to a higher temperature for 150 seconds, to a higher temperature for 150 seconds, the timer will be reset (this timer is also reset after defro the timer will be reset (this timer is also reset after defrost mode) st mode)

  • The temperature sensing can only be done when the compressor

The temperature sensing can only be done when the compressor run time > 2 minutes run time > 2 minutes

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SLIDE 36

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 13. Defrost Mode
  • 13. Defrost Mode

1/2 1 2

Hours

  • C

C

+3 +2

  • 2
  • 4
  • 6
  • 8

Defrost Mode if >3 min Defrost Mode if >3 min

The likelihood of ice frosting: The likelihood of ice frosting:

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SLIDE 37

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 13. Defrost Mode
  • 13. Defrost Mode
  • During Defrost Cycle, HEAT LED will blink

During Defrost Cycle, HEAT LED will blink

  • The defrost cycle will terminate if:

The defrost cycle will terminate if:

  • a. temperature of outdoor coil sensor exceeds
  • a. temperature of outdoor coil sensor exceeds +10

+10 o

  • C

C OR OR

  • b. a minimum of
  • b. a minimum of 10 min

10 min compressor run time is achieved compressor run time is achieved

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SLIDE 38

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 13. Defrost Mode
  • 13. Defrost Mode

ID fan, OD fan ID fan, OD fan & 4WV & 4WV ON ON OFF OFF ON ON OFF OFF COMP COMP

Defrost Cycle Defrost Cycle 15 + 5 sec 20 sec 15 + 5 sec 20 sec

Defrost Cycle (C2.4 Option) Defrost Cycle (C2.4 Option)

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SLIDE 39

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 14. Dry Mode
  • 14. Dry Mode

During the 1 During the 1st

st 12 minutes

12 minutes

  • Run under COOL mode with Auto Fan Speed for 12 minutes

Run under COOL mode with Auto Fan Speed for 12 minutes OR OR

  • Run Until

Run Until Tr Tr < Ts < Ts – – 1°C 1°C After the 1 After the 1st

st 12 minutes

12 minutes

  • Run either Zone A, B, C or D (depend on temp. condition)

Run either Zone A, B, C or D (depend on temp. condition)

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Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 14. Dry Mode
  • 14. Dry Mode

ZONE A ZONE A : if : if Tr Tr -

  • Ts > 2

Ts > 2 o

  • C

C

Compressor Compressor ON ON OFF OFF Low Fan Low Fan ON ON OFF OFF 12 Minutes 12 Minutes

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SLIDE 41

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 14. Dry Mode
  • 14. Dry Mode

ZONE B ZONE B : : if 0°C < Tr if 0°C < Tr -

  • Ts < 1°C

Ts < 1°C

8 min 8 min 4 min 4 min 30 sec 30 sec 30 sec 30 sec

ON ON OFF OFF ON ON OFF OFF Compressor Compressor Low Fan Low Fan 12 Minutes 12 Minutes

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SLIDE 42

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 14. Dry Mode
  • 14. Dry Mode

ZONE C ZONE C : : if 1°C < Ts if 1°C < Ts -

  • Tr < 2°C

Tr < 2°C

30 sec 30 sec 30 sec 30 sec

12 Minutes 12 Minutes

6 min 6 min 6 min 6 min

Compressor Compressor Low Fan Low Fan

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SLIDE 43

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 14. Dry Mode
  • 14. Dry Mode

ZONE D ZONE D : : if if Ts Ts -

  • Tr

Tr > 3°C > 3°C

Low Fan Low Fan Compressor Compressor

30 sec 30 sec

12 Minutes 12 Minutes ON ON OFF OFF ON ON OFF OFF

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SLIDE 44

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 15. AUTO Mode
  • 15. AUTO Mode
  • Under AUTO mode, the mode can be selected automatically

Under AUTO mode, the mode can be selected automatically between HEAT and COOL mode between HEAT and COOL mode COOL COOL HEAT HEAT I) I) Tr Tr <= Ts <= Ts -

  • 3.5°C AND

3.5°C AND II) II) The compressor has cut out for at least 10 min. The compressor has cut out for at least 10 min.

IF IF

(A) If the present Auto mode is COOL, (A) If the present Auto mode is COOL, ( M ( Mode Set Temperature = User Set Temperature)

  • de Set Temperature = User Set Temperature)
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SLIDE 45

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

  • 15. AUTO Mode
  • 15. AUTO Mode

(B) If the present Auto mode is HEAT, (B) If the present Auto mode is HEAT, ( M ( Mode Set Temperature = User Set Temperature)

  • de Set Temperature = User Set Temperature)

HEAT HEAT COOL COOL

IF IF

I) I) Tr Tr > Ts + 3°C AND > Ts + 3°C AND II) II) The compressor has cut out for at least 10 min. The compressor has cut out for at least 10 min.

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SLIDE 46

Technical Training Technical Training Technical Training Universal Controller Universal Controller Universal Controller -

  • U1.4

U1.4 U1.4

Thank you Thank you