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SEZ-KA60VA
R410A Ceiling Concealed Ducted System
Designed for homes, offices, restaurants or shops, the SEZ series operates at
low noise levels and is virtually invisible when installed within a suspended
ceiling. Its low unit height and lightweight design also helps to make
installation easier and more convenient.
Hover your mouse over the red icons below to view a description of each feature:
SEZ-KA60VA Indoor Unit
Capacity (kW):
Heating (Nominal) (Low
- High)
Cooling (Nominal) (Low
- High)
Heating (UK) (Low -
High)
Cooling (UK) (Low -
High)
SHF R410A (Nominal)
COP / EER (Nominal)
Energy Label Heating /
Cooling
Width - mm
Depth - mm
Height - mm
Weight - kg
Airflow (m3/min)
(Heating / Cooling) -
Lo-Hi
Inverter Heat Pump
6.90 (0.90 - 8.00)
5.50 (1.10 - 6.30)
5.75 (0.75 - 6.65)
5.45 (1.10 - 6.25)
0.75
2.82 / 2.81
C / D
1100
700
270
33.5
12-20 / 12-20
Model Info
Dimensions
SEZ-KA60VA (Click to
enlarge).
SUZ-KA60VA (Click to
enlarge).
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Related Manuals for Mitsubishi SEZ-KA35VA.TH
Summary of Contents for Mitsubishi SEZ-KA35VA.TH
- Page 1 Home > Products > M Series > R410A Ceiling Concealed Ducted System > Inverter Heat Pump > SEZ-KA60VA Inverter Heat Pump R410A Ceiling Concealed Ducted System Model Info Designed for homes, offices, restaurants or shops, the SEZ series operates at low noise levels and is virtually invisible when installed within a suspended ceiling.
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Page 2: Table Of Contents
External Static Pressure Pa(mmAq) - 30(3)-50(5) Lo-Hi Noise (dBA) (Heating / 32-43 / 32-43 Cooling) - Lo-Hi Pipe Size Gas mm (in) 15.88 (5/8) Pipe Size Liquid mm 6.35 (1/4) (in) Electrical Supply Fed by Outdoor Unit Phase Single Fuse Rating (BS88) - HRC (A) Interconnecting Cable No. - Page 3 No.OC321 TECHNICAL & SERVICE MANUAL Indoor unit Note : [Model names] [Service Ref.] •This manual does not cover outdoor units. When servicing SEZ-KA35VA.TH SEZ-KA35VA outdoor units, please refer to the service manual SEZ-KA50VA.TH No.OC322 together with this SEZ-KA50VA manual. SEZ-KA60VA.TH...
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Page 4: Part Names And Functions
PART NAMES AND FUNCTIONS Indoor Unit SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH Air outlet Air outlet duct flange Air inlet (Selecting the either back side or bottom side) Wired remote controller On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button. - Page 5 Display “Sensor” indication Displayed when the remote controller sensor is used. Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown as lit. During actual operation, only Time/Timer Display the relevant items will be lit. “Locked”...
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Page 6: Specifications
W.B. 6: Refrigerant piping length (one way): 5m 1 Measured under rated operating frequency. Specifications and rating conditions of main electric parts INDOOR UNIT Model SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH Item Indoor fan capacitor (C1) SEZ-KA35/50VA.TH : 2.5+ 440V SEZ-KA60VA.TH : 3.0+ 440V... -
Page 7: Weight Kg
Indoor model SEZ-KA60VA.TH Function Cooling Heating Single phase Power supply 230V, 50Hz Capacity Air flow (High/Low) K /h 1200/720 Power outlet Running current 0.65 Power input Rated frequency Auxiliary heater A(kW) — Power factor Fan motor current 0.39 Model PK6V50-EF WHT-BLK : 103 BLK-BLU : 57 Winding... -
Page 8: Noise Criterion Curves
NOISE CRITERION CURVES <50Hz> <50Hz> SEZ-KA35VA.TH SEZ-KA50VA.TH NOTCH SPL(dB) LINE NOTCH SPL(dB) LINE High High NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE TERESHOLD OF TERESHOLD OF HEARING FOR HEARING FOR NC-20 NC-20 CONTINUOUS CONTINUOUS NOISE... -
Page 9: Cooling
INDOOR FAN PERFORMANCE AND CORRECTED AIR FLOW SEZ-KA35VA.TH Corrected Air flow Capacity Input Cooling Fan Performance Recommended range Air flow (K/X) Heating Air flow (K/X) Air flow (K/X) SEZ-KA50VA.TH Corrected Airflow Capacity Input Cooling Fan Performance Recommended range Air flow (K/X) -
Page 10: Outlines And Dimensions
OUTLINES AND DIMENSIONS SEZ-KA35VA.TH Unit : mm SEZ-KA50VA.TH SEZ-KA60VA.TH Air inlet (bottom side) dimensions In case of bottom side suction, Air inlet (rear side) dimensions PLATE (A) mount the PLATE (A) on the rear side. After installation, remove the (Inlet size) transportation support PLATE (B). -
Page 11: Wiring Diagram
WIRING DIAGRAM SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH TO OUTDOOR UNIT 1 2 3 4 5 6 AC220-240V 1 2 3 CNSK(RED) <fig:w1> MODELS KA35 TRANS 1 2 3 4 5 6 7 (POWER) (FAN) (POWER 1 2 3 4 5 BOARD) CNDK... -
Page 12: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH Strainer Heat exchanger Refrigerant GAS pipe connection (Flare) Condenser/evaporator temperature thermistor (TH5) Refrigerant flow in cooling Refrigerant flow in heating Refrigerant LIQUID pipe connection (Flare) Pipe temperature thermistor/liquid Room temperature (TH2) thermistor (TH1) Strainer... -
Page 13: Troubleshooting
TROUBLESHOOTING 6-1. Cautions on troubleshooting (1) Before troubleshooting, check the followings: 1 Check the power supply voltage. 2 Check the indoor/outdoor connecting wire for mis-wiring. (2) Take care the followings during servicing. 1 Before servicing the air conditioner, be sure to first turn off the remote controller to stop the main unit, and then turn off the breaker. - Page 14 6-3. Test point diagram 6-3-1. Indoor power board SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH CN2S Connect to the indoor controller board (CN2D) Between 1 1 to 3 3 12.6-13.7V DC (Pin1 1 (+)) CNSK Connect to the indoor controller board (CNDK) Between 1 1 to 3 3 220-240V AC...
- Page 15 6-3-2. Indoor controller board SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH CN2D LED1 Connector to the indoor LED2 LED3 Power supply Power supply power board (CN2S) Transmission (I.B) (12.5~13.7V DC) (R.B) (Indoor/outdoor) CN3C – Transmission (Indoor/outdoor) CN22 (0~24V DC) Remote controller connecting wire Non polarity –...
- Page 16 6-4. Trouble criterion of main parts SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH Part name Check method and criterion Room temperature Measure the resistance with a tester. thermistor (Part temperature 10°C ~ 30°C) (TH1) Normal Abnormal Pipe temperature 8kΩ~20kΩ Opened or short-circuited thermistor/liquid (TH2)
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Page 17: Disassembly Procedure
DISASSEMBLY PROCEDURE SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH OPERATING PROCEDURE PHOTOS Service panel Photo 1. Electrical (Pipe temperature 1. Removing the electrical parts parts cover thermistor / liquid) (1) Remove the 2 screws and the electrical parts cover. (See Photo 1.) Indoor controller board (I.B) Terminal block (TB4,TB15) Indoor power board (P.B) - Page 18 OPERATING PROCEDURE PHOTOS 4. Removing the room temperature thermistor (TH1) Photo 5. (1) Remove the electrical parts cover. (Refer to 1.) Claws Motor bands Fan casing (2) Remove the 12 screws and the front panel at fan side. (See Photo 1.) (3) Remove the thermistor (TH1) from the separator panel.
- Page 19 OPERATING PROCEDURE PHOTOS 6. Removing the drain pan (1) Unscrew each set screw on the right and left, and remove the drain pan pushing it toward the the back. (See Photo 1.) Photo 8. Screws 7. Removing the heat exchanger (1) Remove the drain pan.
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Page 20: Parts List
PARTS LIST INDOOR UNIT STRUCTURAL PARTS SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH Part number that is circled is not shown in the illustration. Q'ty/set Price Wiring Recom- Parts No. Specification Remarks Parts name SEZ- Diagram mended Unit Amount (Drawing No.) Symbol Q'ty KA35VA.TH KA50VA.TH... - Page 21 INDOOR UNIT ELECTRICAL PARTS SEZ-KA35VA.TH SEZ-KA50VA.TH SEZ-KA60VA.TH TEMP. ON/OFF Part numbers that is circled is not shown in the illustration. Q'ty/set Price Wiring Recom- Parts No. Specification Remarks Parts name Diagram mended SEZ- Unit Amount (Drawing No.) Symbol Q'ty KA35VA.TH KA50VA.TH...
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Page 22: Optional Parts
SEZ-KA35VA.TH SEZ-KA50VA.TH PAC - 1000 FT SEZ-KA60VA.TH HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Feb. 2005 No. OC321 PDF 8 New publication, effective Feb. 2005. Made in Japan.
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