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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 – – U1.4 U1.4 Universal Controller Technical Training Technical Training Technical Training Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

PCB Layout Technical Training Technical Training Technical Training CC- -C/CR C/CR CC CE- -D/DR D/DR CE WM- -FR FR WM CK- -A/AR A/AR CK CK- -C/CR C/CR CK Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

PCB Connection Diagram (WM-FR) LED Display Board LED Display Board SLM3 SLM3 CN3 CN3 CN4 CN4 OR OR Technical Training Technical Training Technical Training Netware2 Netware2 On / OFF Switch Board On / OFF Switch Board Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

PCB Connection Diagram (CC,CK,CE) SLM3 SLM3 CN4 CN4 CN3 CN3 CN2 CN2 OR OR Netware2 Netware2 Technical Training Technical Training Technical Training Connected to Connected to Twin Fan Board Twin Fan Board LED Display Board LED Display Board Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

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 X X X X X 3K AP X X X X X 3K EC EC X X X X X X 110K 110K Technical Training Technical Training Technical Training X : Modes available X : Modes available Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

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 - - WM, JH WM, JH - - others) others) (JP1 • Remove the shunt jumper to have non • Remove the shunt jumper to have non- -auto auto restart restart Technical Training Technical Training Technical Training Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 2. Auto Random Restart 2. Auto Random Restart WM- -FR FR Technical Training WM Technical Training Technical Training Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 2. Auto Random Restart 2. Auto Random Restart CC,CK,CE CC,CK,CE Technical Training Technical Training Technical Training Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 3. Power Up Settings 3. Power Up Settings Power Up Power Up JH/JP1 Shorted JH/JP1 Opened JH/JP1 Shorted JH/JP1 Opened Technical Training Technical Training Technical Training Mode = OFF Mode = OFF User Set Mode User Set Mode User Set Temperature User Set Temperature Set Temperature = 24°C Set Temperature = 24°C User Set Fan Speed User Set Fan Speed Fan Speed = High Fan Speed = High Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

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 Technical Training Technical Training Technical Training Heat pump …….>Cool>Heat>Off>….. Heat pump …….>Cool>Heat>Off>….. Cooling …….>Cool>Off>……. Cooling …….>Cool>Off>……. • On/Off button on handsets • On/Off button on handsets Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

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 Technical Training Technical Training Technical Training occur 24 hours later. occur 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. Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

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

Features 5. Sleep Function (Cool Mode) 5. Sleep Function (Cool Mode) 0 1/2 1 2 0 1/2 1 2 Hours Hours Ts + 2 Ts + 2 Technical Training Technical Training Technical Training Ts + 1 Ts + 1 Ts + 1/2 Ts + 1/2 Ts Ts SLEEP set on SLEEP set off SLEEP set on SLEEP set off Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 5. Sleep Function (Heat Mode) 5. Sleep Function (Heat Mode) SLEEP set on SLEEP set off SLEEP set on SLEEP set off Ts Ts Ts - - 1 1 Ts Ts - - 2 2 Ts Technical Training Technical Training Technical Training Ts - - 3 3 Ts Hours 0 1/2 1 2 Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 6. Protections 6. Protections • Compressor • Compressor • Indoor Coil Anti Freeze • Indoor Coil Anti Freeze • Abnormal Outdoor Condition • Abnormal Outdoor Condition Technical Training Technical Training Technical Training Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 6. Protections 6. Protections Compressor Compressor (a) 3 minutes Minimum OFF time (a) 3 minutes Minimum OFF time Memory backup option not selected (JP1 opened) (JP1 opened) Memory backup option not selected • 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 Technical Training Technical Training Technical Training • 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 Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

Features 6. Protections 6. Protections Compressor Compressor (a) 3 minutes Minimum OFF time (a) 3 minutes Minimum OFF time Memory backup option selected (JP1 Shorted) (JP1 Shorted) Memory backup option selected • 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 Technical Training Technical Training Technical Training • 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 Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller

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 Comp & OD Fan Comp & OD Fan ON ON Technical Training OFF Technical Training OFF Technical Training OD coil temp OD coil temp o C 68 o C 68 HEAT, AUTO HEAT HEAT, AUTO HEAT Comp, OD Fan Comp, OD Fan ON ON & 4WV & 4WV OFF OFF ID coil temp ID coil temp o C 68 o C 68 Universal Controller - U1.4 Universal Controller - - U1.4 U1.4 Universal Controller