1. Manuals
  2. Brands
  3. Kaisai Manuals
  4. Air Conditioner
  5. R ON-OFF series
  6. User manual

Kaisai R ON-OFF series User Manual

Split wall-mounted type
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SPLIT WALL-MOUNTED TYPE
R ON-OFF SERIES

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the R ON-OFF series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Kaisai R ON-OFF series

Summary of Contents for Kaisai R ON-OFF series

  • Page 1 SPLIT WALL-MOUNTED TYPE R ON-OFF SERIES...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2. Function ................................ 6 3. Dimension ..............................9 3.1 Indoor Units ........................... 9 3.2 Outdoor Units ..........................11 4. Refrigerant Cycle Diagram ........................12 5. Wiring Diagram ............................13 5.1 Indoor Units ..........................

  • Page 3: Precaution

    1. Precaution 1.1 Safety Precaution  To prevent injury to the user or other people and property damage, the following instructions must be followed.  Incorrect operation due to ignoring instruction will cause harm or damage.  Before service unit, be sure to read this service manual at first. 1.2 Warning ...
  • Page 4 condenser and evaporator.  For installation, always contact the dealer or an Authorized service center. There is risk of fire, electric shock, explosion, or injury.  Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product. ...
  • Page 5 There is risk of explosion or fire.  If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.  Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.
  • Page 6 It can avoid vibration of water leakage.  Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. It may cause a problem for your neighbors.  Use two or more people to lift and transport the product. Avoid personal injury.
  • Page 7 operated. There are sharp and moving parts that could cause personal injury.  Do not drink the water drained from the product. It is not sanitary could cause serious health issues.  Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.

  • Page 8: Function

    2. Function...
  • Page 9 Indoor units Operation by remote controller Sensing by room temperature Room temperature sensor. Pipe temperature sensor. Room temperature control Maintain the room temperature in accordance with the setting temperature. Anti-freezing control in cooling Prevent the water being frozen on evaporator by sensing the evaporator pipe temperature in cooling mode Time Delay Safety control Indoor fan speed control...
  • Page 10 Outdoor units Power relay control Low noise air flow system Anti-rust cabinet Made from electrolytic zinc steel sheet and anti-rust coated components. Valve protection cover It protects the valves and prevents water from dripping.

  • Page 11: Dimension

    3. Dimension 3.1 Indoor Units Figure 1: Figure 2:...
  • Page 12 Figure 3: Figure Models Figure 1 7k,9k Figure 2 Figure 3 21k,24k 1036...

  • Page 13: Outdoor Units

    3.2 Outdoor Units Model 21k(MOP-21H-QB6W) 21k,24k...

  • Page 14: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram For heat pump models:...

  • Page 15: Wiring Diagram

    5. Wiring Diagram 5.1 Indoor Units KSR1-07HRN1-QC2(A) KSR1-09HRN1-QC2(A) KSR1-18HRN1-QB8...
  • Page 16 KSR1-21HRN1-QB8W KSR1-21CR-QB6W KSR1-21HR-QB6W KSR1-24HRN1-QB8W...

  • Page 17: Outdoor Units

    5.2 Outdoor Units KOK1-07HN1-QC2 KOA1-09HN1-QC2...
  • Page 18 KOE-18HN1-QB8...
  • Page 19 KOF-21HN1-QB8W K0F2-21C-QB6W KOP-21H-QB6W...
  • Page 20 KOF2-24HN1-QB8W...

  • Page 21: Installation Details

    6. Installation details 6.1 Wrench torque sheet for installation Additional Outside diameter Torque tightening torque inch N.cm N.cm 1500 1600 Ф6.35 (153kgf.cm) (163kgf.cm) 2500 2600 Ф9.52 (255kgf.cm) (265kgf.cm) 3500 3600 Ф12.7 (357kgf.cm) (367kgf.cm) 4500 4700 Ф16 (459kgf.cm) (479kgf.cm) 6.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet.

  • Page 22: Pipe Length And The Elevation

    6.3 Pipe length and the elevation The pipe length and refrigerant amount: Additional amount of Model Connective pipe length Air purging refrigerant Less than 5m Use vacuum pump ------------------ 7k,9k,18k More than 5m Use vacuum pump (Pipe length – 5) × 30g/m 21k,24k More than 5m Use vacuum pump...

  • Page 23: Air Purging With Vacuum Pump

    6.4 Air purging with vacuum pump Air and moisture in the refrigerant system have undesirable effects as below: ● Pressure in the system rises. ● Operating current rises. ● Cooling or heating efficiency drops. ● Moisture in the refrigerant circuit may freeze and block capillary tubing. ●...

  • Page 24: Pumping Down (Re-Installation)

    6. Turn the stem of the Hi valve about 45°counterclockwise for 6 or 7seconds after the gas coming out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure. 7.

  • Page 25: Re-Air Purging (Re-Installation)

    Connect the charge hose with the push pin to the gas service port. 4. Air purging of the charge hose. Open the low-pressure valve on the charge set slightly to purge air from the charge hose. 5. Set the 2-way valve to the close position. 6.

  • Page 26: Balance Refrigerant Of The 2-Way, 3-Way Valves

    3. Air purging. Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on the 2-way valve approximately 45’ for 3 seconds then closing it for 1 minute; repeat 3 times. After purging the air, use a torque wrench to tighten the flare nut to on the 2-way valve.

  • Page 27: Evacuation

    Procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. Leave the valve on the charge set closed. Connect the charge hose with the push pin to the service port. 3.

  • Page 28: Gas Charging

    6.9 Gas charging Procedure: 1. Connect the charge hose to the charging cylinder. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge. 2.

  • Page 29: Operation Characteristics

    7. Operation characteristics CAUTION: 1. If air conditioner is used outside of the above conditions, certain safety protection features may come into operation and cause the unit to function abnormally. 2. Room relative humidity less than 80%. If the air conditioner operates in excess of this figure, the surface of the air conditioner may attract condensation.

  • Page 30: Electronic Function

    8. Electronic function 8.1 Abbreviation T1: Indoor ambient temperature T2: Coil temperature of indoor heat exchanger T3: Coil temperature of outdoor heat exchanger T4: Outdoor ambient temperature T5: Compressor discharge temperature 8.2 Display function 8.2.1 Icon explanation on indoor display board. ①...

  • Page 31: Main Protection

    8.3 Main Protection 8.3.1 Time Delay at restart for compressor. 8.3.2 Fan Speed is out of control. (only for 7k,9k,18k models) ----When Indoor Fan Speed keeps too low or too high for certain time, the unit will stop and the LED will display the failure 8.3.3 Current protection I3SEC...

  • Page 32: Operation Modes And Functions

    8.4 Operation Modes and Functions 8.4.1 Fan mode. (1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates same as in cooling mode. (5) Auto fan: For 7k,9k,18k models: For 21k, 24k models:...
  • Page 33 8.4.2 Cooling Mode 8.4.2.1 Compressor running rules: Once the compressor starts up, it will follow the below rules: When indoor room temp.T1 is lower than Tn, the compressor and outdoor fan will shut off. When T1 is higher than Tm, the compressor and outdoor fan will start up. Tm=Ts+1, Tn=Ts.
  • Page 34 When the evaporator coil temp.T2 keeps lower than TE5 for 5 minutes(4 minutes for 21k,24k models), the compressor and outdoor fan will shut off. When T2 is higher than TE6, the compressor and outdoor fan will restart up. While TE5=4℃, TE6=10℃ for KSR1-07HRN1-QC2(A), KSR1-09HRN1-QC2(A) models; TE5=3℃, TE6=14℃...
  • Page 35 8.4.3.2 Outdoor fan running rules: The outdoor units have single fan speed. The outdoor fan will run following the compressor except when AC is in evaporator high temp.protection in heating mode , condenser high temp.protection in cooling mode ,defrosting mode and the current protection. 8.4.3.3 Indoor fan running rules: For 21k,24k models,when the compressor is off because off the room temperature rising or the protection, the indoor fan will run as below rule:...
  • Page 36 ℃,TE 2=32℃ ,TE 3=30℃ ,TE 4=26℃ While TE1=28 for 7k,9k models. ℃,TE2=36℃ ,TE3=3 ℃,TE 4=20℃ TE1=34 for 18k model. ℃,TE2=32℃ ,TE3=30℃ ,TE 4=20℃ for TE1=25 21k,24k models. Auto fan action: When T1-Ts>2℃ ,the indoor fan will run at low speed. When T1-Ts≤0℃...
  • Page 37 (2) After the last defrosting, the time that the outdoor fan is off but the compressor is on in high T2 protection cumulates up to 90 minutes.  Condition of ending defrosting: If any one of the following items is satisfied, the defrosting will terminate and the machine will turn to normal heating mode.
  • Page 38 For 21k,24k models:  Condition of defrosting: AC will enter defrosting mode if any of the following items is satisfied. (1) When T3＜TC1℃, if the compressor keeps running over 40 minutes and T3＜TC3℃ for 3 minutes. While TC1= 0℃, TC3=－3℃. (2) After the last defrosting, the time that the outdoor fan is off but the compressor is on in high T2 protection cumulates up to 90 minutes.
  • Page 39 For 21k,24k models: While TE7=63℃,TE8=57℃,TE9=50℃ for KSR1-21HRN1-QB8W model. TE7=63℃,TE8=54℃,TE9=50℃ for KSR1-21CR-QB6W , KSR1-21HR-QB6W KSR1-24HRN1-QB8W models.
  • Page 40 8.4.4 Auto-mode The machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts). For 7k,9k,18k models: ΔT=T1-Ts Running mode ΔT＞2℃ Cooling -1≤ΔT≤2℃ Fan-only ΔT<-1 ℃ Heating(for cooling only models,they will run at fan-only mode) For 21k,24k models: ΔT=T1-Ts Running mode ΔT＞2 ℃...
  • Page 41 ℃, the 8.4.5.2 In drying mode, if room temperature is lower than 10 indoor fan will run at breeze while the compressor and outdoor fan will stop and not resume until room temperature exceeds 13 ℃. 8.4.5.3 System protection is active in this mode. For 21k,24k models: 8.4.5.4 The indoor fan will keep running at low speed.
  • Page 42 Suppose users set the “timer off” function and AC is off now, the AC will keep the current running mode and then turn off when reaching the setting time.For 21k,24k models, the timer function will change the AC current operation mode. Suppose users set the “timer off” function and AC is off now, the AC will turn on firstly and then turn off when reaching the setting time.
  • Page 43 indoor fan restarts after malfunctions being eliminated and anti-cold-wind being released, Ionizer will be available again.

  • Page 44: Troubleshooting

    9. Troubleshooting 9.1 Indoor unit error display For 7k,9k,18k models: Operation lamp Timer lamp Failure ☆ Indoor fan speed has been out of control ☆ The T1 or T2 sensor is open circuit or short circuit ☆ Over current protection occurs 4 times. ☆...

  • Page 45: Diagnosis And Solution

    9.2 Diagnosis and Solution 9.2.1 Indoor fan speed out of control diagnosis Shut off the power supply and turn on it 5s later The unit does not work normally Turn off the unit, rotate the cross Disassemble the connection between fan.Does it rotate freely? fan and motor, check if the bearing is normal.
  • Page 46 9.2.2 Open or short circuit of temperature sensor diagnosis and solution. Check the connections between the sensors and the PCB. Are the connections good? Replace the sensor and check if Replace outdoor PCB the errors happen again? 9.2.3 Over current protection occurs 4 times. Current protection Check if the voltage...
  • Page 47 9.2.4 EEPROM parameter error diagnosis and solution Shut off the power supply and turn on it 5s later Replace indoor PCB The problem comes out again Correct the connection Is the EEPROM chip plugged in indoor PCB well? Replace the main PCB of indoor unit 9.2.5 Zero crossing detection error When such failure occurs, the main control board must have fault.
  • Page 48 9.2.6 Indoor / outdoor units communication error Turn off the power supply, after 1 minute, connect the power supply , turn on the unit with remote controller The unit does not work normally. Check the wiring between indoor and outdoor unit.
  • Page 49 9.2.7 Outdoor units protection Outdoor units protection Whether the outdoor unit is power on Check when the power is on Replace the outdoor Measure whether the voltage of the communication line’s red and unit board black end between the indoor and outdoor unit is +5V Check the indoor unit main board Replace indoor PCB...

Table of Contents