Electra KN 36 ST 3PH Service Manual
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Electra KN 36 ST 3PH Service Manual

Kn cassette r410a series
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KN Cassette R410A Series
Indoor Units
Outdoor Units
KN 24 ST
OU7-24 ST
KN 24 ST 3PH
OU7-24T ST
KN 24 RC
OU7-24 RC
KN 24 RC 3PH
OU7-24T RC
KN 30 ST
OU8-30 ST
KN 30 ST 3PH
OU8-30T ST
KN 30 RC
OU8-30 RC
REFRIGERANT
R410A
Indoor Units
KN 30 RC 3PH
KN 36 ST
KN 36 ST 3PH
KN 36 RC
KN 36 RC 3PH
KN 45 ST 3PH
KN 45 RC 3PH
COOLING ONLY
HEAT PUMP
MAY - 2006
CONTENT
Outdoor Units
OU8-30T RC
OU10-36 ST
OU10-36T ST
OU10-36 RC
OU10-36T RC
OU10-47T ST
OU10-47T RC

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Summary of Contents for Electra KN 36 ST 3PH

  • Page 1 Indoor Units Outdoor Units Indoor Units Outdoor Units KN 24 ST OU7-24 ST KN 30 RC 3PH OU8-30T RC KN 24 ST 3PH OU7-24T ST KN 36 ST OU10-36 ST KN 24 RC OU7-24 RC KN 36 ST 3PH OU10-36T ST...
  • Page 2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.
  • Page 3 TABLE OF CONTENTS Table of Contents INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA & PRESSURE CURVES ..........5-1 ELECTRICAL DATA ....................6-1 WIRING DIAGRAMS .....................7-1 ELECTRICAL CONNECTIONS ................8-1 REFRIGERATION DIAGRAMS ................9-1 10. TUBING CONNECTIONS ..................10-1 11.

  • Page 4: Main Features

    INTRODUCTION INTRODUCTION General The cassette (900X900) split ceiling mounted range comprise the ST (cooling only) and RC (heat pump) models, as follows: Cooling Only KN24ST, KN30ST, KN36ST 1PH & 3PH; KN45ST 3PH units • Heat Pump KN24RC, KN30RC, KN36RC 1PH & 3PH; KN45RC 3PH units •...

  • Page 5: Outdoor Unit

    INTRODUCTION Outdoor Unit The Cassette outdoor units can be installed as floor or wall mounted units by using a wall supporting bracket. The metal sheets are protected by anti- corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2.
  • Page 6 INTRODUCTION 1.10 Matching Table 1.10.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REF’ KN24 KN30 KN36 KN45 DNG24 DNG30 DNG36 DNG44 OU7-24ST R410A √ √ OU7-24T ST R410A √ √ OU7-24 RC R410A √ √ OU7-24T RC R410A √ √ OU8-30 ST R410A √...

  • Page 7: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET KN 24 / OU7-24 R410A Model Indoor Unit KN-24 Model Outdoor Unit OU7-24 Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 23100 23100 24150 Capacity 6.77 6.77 7.08 Power input 2.25 2.25 2.33...
  • Page 8 PRODUCT DATA SHEET KN 24 / OU7-24T R410A Model Indoor Unit KN-24 Model Outdoor Unit OU7-24T Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 23100 23100 24150 Capacity 6.77 6.77 7.08 Power input 2.25 2.25 2.33 EER (Cooling) or COP(Heating) 3.01 3.01...
  • Page 9 PRODUCT DATA SHEET KN 30 / OU8-30 R410A Model Indoor Unit KN-30 Model Outdoor Unit OU830 Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 28,300 28,300 30,500 Capacity 8.30 8.30 8.94 Power input 2.94 2.94 2.88 EER (Cooling) or COP(Heating) 2.82 2.82...
  • Page 10 PRODUCT DATA SHEET KN 30 / OU8-30T R410A Model Indoor Unit KN-30 Model Outdoor Unit OU830T Installation Method of Pipe Flared Characteristics Units Cooling Only Cooling Heating Btu/hr 28,300 28,300 30,500 Capacity 8.30 8.30 8.94 Power input 2.86 2.86 2.79 EER (Cooling) or COP(Heating) 3.20 Energy efficiency class...
  • Page 11 PRODUCT DATA SHEET KN 36 / OU10-36 R410A Model Indoor Unit KN 36 Model Outdoor Unit OU10-36 R410A Installation method CASSETE Characteristics Units Cooling Heating Btu/hr 34,500 34,500 Capacity (1) 10.10 10.10 Power input (1) 3.48 3.60 COP (1) 2.90 2.80 Energy efficiency class Power supply...
  • Page 12 PRODUCT DATA SHEET KN 36 / OU10-36T R410A Model Indoor Unit KN 36 Model Outdoor Unit OU10-36T R410A Installation method CASSETE Characteristics Units Cooling Heating Btu/hr 33,100 35,150 Capacity (1) 9.70 10.30 Power input (1) 3.34 3.68 COP (1) 2.90 2.80 Energy efficiency class Power supply...
  • Page 13 PRODUCT DATA SHEET KN 45 / OU10-47 R410A Model Indoor Unit KN 45 Model Outdoor Unit OU10-47T R410A Installation method CASSETE Characteristics Units Cooling Heating Btu/hr 42,150 45,000 Capacity (1) 12.35 13.20 Power input (1) 4.40 4.63 COP (1) 2.80 2.85 Energy efficiency class Power supply...

  • Page 14: Rating Conditions

    RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units) and EN 14511. Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits Indoor Outdoor...

  • Page 15: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: KN 24, 30, 36, 45 Necessary room Note: 24/27/30 Series A 260mm 36/45 Series A 330mm outlet inlet outlet Drain side Tubing side ground Chart 1 780 (Hook-location) 840 (Body) 880 (Ceiling hole) 950 (Panel) (Unit: mm) Chart 2 Chart 3...
  • Page 16 OUTLINE DIMENSIONS Outdoor Unit: OU7-24 Outdoor Unit: OU8-30 Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 17 OUTLINE DIMENSIONS Outdoor Unit: OU10-36, OU10-47 Service Manual - KN Series Revision Y06-02 CONTENT...

  • Page 18: Optional Accessories

    PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA KN24 / OU7-24 R410A 1PH/3PH 5.1.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27...
  • Page 19 PERFORMANCE DATA & PRESSURE CURVES 5.1.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 4.09 1.86 3.93 1.99 3.78 6.34 4.40 1.91 4.24 2.02...
  • Page 20 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves. 5.3.1 Cooling. Suction Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB Service Manual - KN Series Revision Y06-02 CONTENT...
  • Page 21 PERFORMANCE DATA & PRESSURE CURVES 5.3.2 Heating. Suction Pressure VS.Outdoor Temp 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 22 PERFORMANCE DATA & PRESSURE CURVES KN30 / OU8-30 R410A 5.4.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27 21/29 23/32 8.75...
  • Page 23 PERFORMANCE DATA & PRESSURE CURVES 5.4.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 5.16 2.30 4.97 2.45 4.77 2.58 5.56 2.36 5.36 2.49...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES KN30 / OU8-30T R410A 5.6.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27 21/29 23/32 8.75...
  • Page 25 PERFORMANCE DATA & PRESSURE CURVES 5.6.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 5.16 2.23 4.97 2.38 4.77 2.50 5.56 2.29 5.36 2.41...
  • Page 26 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves. 5.8.1 KN30 / OU8-30 R410A - Cooling: Suction Pressure VS.Outdoor Temp 10.0 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB...
  • Page 27 PERFORMANCE DATA & PRESSURE CURVES 5.8.2 Heating. Suction Pressure VS.Outdoor Temp 11.0 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB 5-10 Revision Y06-02 Service Manual - KN Series...
  • Page 28 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves. 5.9.1 KN30 / OU8-30T R410A - Cooling: Suction Pressure VS.Outdoor Temp 11.0 21/15(DB/WB ºC) 10.5 24/17(DB/WB ºC) 10.0 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC)
  • Page 29 PERFORMANCE DATA & PRESSURE CURVES 5.8.2 Heating. Suction Pressure VS.Outdoor Temp 11.0 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB 5-12 Revision Y06-02 Service Manual - KN Series...
  • Page 30 PERFORMANCE DATA & PRESSURE CURVES KN36 / OU10-36 R410A 5.9.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27 21/29 23/32 10.65...
  • Page 31 PERFORMANCE DATA & PRESSURE CURVES 5.9.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 5.30 2.88 5.10 3.07 4.90 3.22 5.71 2.95 5.50 3.11...
  • Page 32 PERFORMANCE DATA & PRESSURE CURVES 5.11 Pressure Curves. 5.11.1 Cooling: Discharge Pressure VS.Outdoor Temp 15/21(WB/DB ºC) 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Suction Pressure VS.Outdoor Temp 11.0 15/21(WB/DB ºC) 17/24(WB/DB ºC) 10.0 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Service Manual - KN Series...
  • Page 33 PERFORMANCE DATA & PRESSURE CURVES 5.11.2 Heating Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Suction Pressure VS.Outdoor Temp 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB 5-16 Revision Y06-02 Service Manual - KN Series...
  • Page 34 PERFORMANCE DATA & PRESSURE CURVES 5.12 KN36 / OU10-36T R410A 5.12.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27 21/29 23/32...
  • Page 35 PERFORMANCE DATA & PRESSURE CURVES 5.12.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 5.41 2.94 5.20 3.14 5.00 3.29 5.82 3.02 5.61 3.18...
  • Page 36 PERFORMANCE DATA & PRESSURE CURVES 5.14 Pressure Curves. 5.14.1 Cooling: Discharge Pressure VS.Outdoor Temp 15/21(WB/DB ºC) 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Suction Pressure VS.Outdoor Temp 11.0 15/21(WB/DB ºC) 17/24(WB/DB ºC) 10.0 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Service Manual - KN Series...
  • Page 37 PERFORMANCE DATA & PRESSURE CURVES 5.14.2 Heating: Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Suction Pressure VS.Outdoor Temp 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB 5-20 Revision Y06-02 Service Manual - KN Series...
  • Page 38 PERFORMANCE DATA & PRESSURE CURVES 5.15 KN45 / OU10-47T R410A 5.15.1 Cooling Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR WB/DB ID COIL ( °C) ENTERING AIR DATA DB OD COIL (°C) 15/21 17/24 19/27 21/29 23/32...
  • Page 39 PERFORMANCE DATA & PRESSURE CURVES 5.15.2 Heating Mode at 7.5m Tubing Connection. 230V : Indoor Fan at High Speed. ENTERING AIR DB ID COIL ( °C) ENTERING AIR WB OU COIL ( °C) 6.93 3.70 6.67 3.94 6.40 4.14 7.46 3.80 7.19 4.00...
  • Page 40 PERFORMANCE DATA & PRESSURE CURVES 5.17 Pressure Curves. Cooling: Discharge Pressure VS.Outdoor Temp 15/21(WB/DB ºC) 17/24(WB/DB ºC) 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Suction Pressure VS.Outdoor Temp 11.0 15/21(WB/DB ºC) 17/24(WB/DB ºC) 10.0 19/27(WB/DB ºC) 21/29(WB/DB ºC) 23/32(WB/DB ºC) Outdoor Temp.(DB Service Manual - KN Series Revision Y06-02...
  • Page 41 PERFORMANCE DATA & PRESSURE CURVES 5.17.2 Heating Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Suction Pressure VS.Outdoor Temp 11.0 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB 5-24 Revision Y06-02 Service Manual - KN Series...

  • Page 42: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL KN 24 KN 30 To Outdoor To Outdoor Power Supply 1PH – 230V – 50 Hz 1PH – 230V – 50 Hz Max Current, A Circuit Breaker Power Supply Wiring No. X 3 X 2.5 mm 3 X 4 mm Cross Section mm...
  • Page 43 ELECTRICAL DATA MODEL KN 36T KN 45T To Outdoor To Outdoor Power Supply 3PH – 400V – 50 Hz 3PH – 400V – 50 Hz Max Current, A 3 x 11.9 3 x 17.5 Circuit Breaker 3 x 16 3 x 20 Power Supply Wiring 5 X 2.5 mm 5 X 2.5 mm...

  • Page 44: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit: KN 24/30 (Power Supply to Outdoor) LEGEND: FUSE B K - B L A C K B U - B L U E Water switch DISPLAY PLUG FUSE BOARD BN - BROWN RELAY PLUG OG - ORANGE PLUG R D - R E D...
  • Page 45 WIRING DIAGRAMS Outdoor Unit: OU7-24 / 30 1PH Outdoor Unit: OU7-24 / 30 3PH Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 46 WIRING DIAGRAMS Indoor Unit: KN 36 / 36T / 45T Outdoor Unit: OU10-36 Service Manual - KN Series Revision Y06-02 CONTENT...
  • Page 47 WIRING DIAGRAMS Outdoor Unit: OU10-36T Outdoor Unit: OU10-47T Revision Y06-02 Service Manual - KN Series CONTENT...

  • Page 48: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS KN 24/30/36/45 (Power Supply to Outdoor) KN 24/30/36/45 3PH Service Manual - KN Series Revision Y06-02 CONTENT...

  • Page 49: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS Heat Pump Models 9.1.1 KN 24 R410A Service Manual - KN Series Revision Y06-02 CONTENT...
  • Page 50 REFRIGERATION DIAGRAMS 9.1.2 KN 30 R410A Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 51 REFRIGERATION DIAGRAMS 9.1.3 KN 36 R410A Service Manual - KN Series Revision Y06-02 CONTENT...
  • Page 52 REFRIGERATION DIAGRAMS 9.1.4 KN 36T R410A Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 53 REFRIGERATION DIAGRAMS 9.1.5 KN 45T R410A Service Manual - KN Series Revision Y06-02 CONTENT...
  • Page 54 REFRIGERATION DIAGRAMS Cooling Only Models 9.2.1 KN 24 / 30 / 36 / 45 R410A Revision Y06-02 Service Manual - KN Series CONTENT...

  • Page 55: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) Flare Nuts 11-13 40-45 60-65 70-75 80-85 Valve Cap 13-20 13-20 18-25 18-25 40-50 Service Port Cap 11-13 11-13 11-13 11-13 11-13 Valve Protection Cap-end Refrigerant Valve Port (use Allen wrench to open/close) Valve Protection Cap Refrigerant Valve Service Port Cap...

  • Page 56: Introduction

    CONTROL SYSTEM CONTROL SYSTEM 11.1 Electronic Control 11.1.1 Introduction The electronic control information is designed for service applications, and is common to the following groups of air-conditioners: ST/RC group -Cooling only / cooling and heating by heat pump. SH group -Cooling and heating by heat pump and supplementary heater.
  • Page 57 CONTROL SYSTEM 11.1.3 Main PCB Controller Revision Y06-02 Service Manual - KN Series 11-2 CONTENT...
  • Page 58 CONTROL SYSTEM 11.1.4 Display Board PCB Legend 1. IR Receiver 2. Buzzer 3. STBY LED 4. Operation LED 5. Timer LED 6. Heating LED 7. Display Port Connection 8. Push Button (Mode) Service Manual - KN Series Revision Y06-02 11-3 CONTENT...
  • Page 59 CONTROL SYSTEM 11.2 Control Function 11.2.1 Abbreviations - Alternate Current - Air-Conditioner - ON or OFF status CLOCK - ON/OFF Operation Input, (dry contact) COMP - Compressor - Central Processing Unit - Compensation Temperature Value - Heating Element - High Pressure Control - Hardware - Indoor Condensation Pump - Indoor Coil Temperature (RT2) sensor...
  • Page 60 CONTROL SYSTEM 11.3 General Functions 11.3.1 COMP Operation For each Mode including POWER OFF & SB, a Min time delay of 3 min before COMP restarting, excluding DEICING Mode. The Min operation time of COMP under different operating conditions is: Operation Mode Min Operation Time of COMP Heat, Cool, HP protection or Auto Modes...
  • Page 61 CONTROL SYSTEM 11.3.5 Protections High pressure protection is applicable to all operating modes. Deicing control is valid in Heat and Auto Heat Modes only. Defrosting control is valid in Dry, Cool, and Auto Cool Modes. 11.3.6 Thermistors Operation Return air Temp. is detected by RAT in normal Mode, or by RCT (R/C sensor) in I-FEEL Mode.

  • Page 62: General Features

    CONTROL SYSTEM 11.3.7 RV Fault This test is applied only in compressor units where 4.7k resistor is not connected to the OCT. The test is performed every time the unit is switched from OFF/STBY to OPER in Heat mode or changes operation mode from COOL/DRY to HEAT or (this applies also in AUTO COOL/HEAT mode).

  • Page 63: Cooling Mode

    CONTROL SYSTEM 11.4 Cooling Mode 11.4.1 Cooling Mode – General Mode Definition Mode: COOL, AUTO (at Cooling) Temp: Selected desired temperature. Fan: HIGH, MED, LOW, AUTO. Timer: Any I-FEEL: ON or OFF Room Temperature, RT, is detected by: RAT in normal operation, or RCT (R/C sensor) in I-FEEL mode.
  • Page 64 CONTROL SYSTEM 11.4.3 Sequence Diagrams Maintaining room temp at desired level by comparing RT and SPT with user defined IFAN speed. (RT - SPT) [ COMP (WVL) OFAN USER FAN SPEED IFAN Service Manual - KN Series Revision Y06-02 11-9 CONTENT...
  • Page 65 CONTROL SYSTEM Maintaining room temp at desired level by comparing RT and SPT with AUTO-IFAN. (RT - SPT) [ COMP (WVL) OFAN IFAN Revision Y06-02 Service Manual - KN Series 11-10 CONTENT...

  • Page 66: Heating Mode

    CONTROL SYSTEM 11.5 Heating Mode 11.5.1 Heating Mode - General Compensation Procedure When I-FEEL is OFF during HEAT mode: RT= RAT – CTV. When I-FEEL is ON during HEAT mode: RT= RCT. Type of Indoor Wall Mounted Mobiles / Floor Ceiling Square /Window Ducted Cassettes...
  • Page 67 CONTROL SYSTEM IFAN operation rules for RH group 1) In RH group, IFAN starts when HE starts. When HE switches to OFF, IFAN switches to LOW for 30 sec and then stops. Heaters operation rules for RC and SH groups: 1) For both RC and SH groups, Heaters versus T is as follows: T=SP-RT [ 2) Operation rules for Heaters in RC group:...
  • Page 68 CONTROL SYSTEM Heaters operation rules for RH groups: 1) In RH group, HE operation is according to the difference between RAT and SPT. H E2 O FF H E1 O FF T=SP-RT [ OFAN Operation for RC and SH groups 1) As a general rule for RC and SH groups, excluding protection modes, OFAN starts with the compressor.
  • Page 69 CONTROL SYSTEM 11.6 Heating, RC or SH Group Mode: HEAT, AUTO (at heating) Temp: Selected desired temperature Fan: HIGH, MED, LOW Timer: Any I-FEEL: ON or OFF 11.6.1 Sequence Diagram Maintains room temp. at desired level by comparing RAT or RCT to SPT. (RT - SPT) [ COMP (WVL)
  • Page 70 CONTROL SYSTEM 11.7 Heating, RC or SH Group with Autofan Mode: HEAT, AUTO (at heating) Temp: Selected desired temperature Fan: AUTO Timer: Any I-FEEL: ON or OFF 11.7.1 Sequence Diagram Maintains room temp at desired level by controlling COMP, IFAN and OFAN. (RT - SPT) [ COMP (WVL)
  • Page 71 CONTROL SYSTEM 11.8 Heating, RH Group Mode: HEAT, AUTO (at Heating) Temp: Selected desired temperature Fan: HIGH, MED, LOW Timer: Any I-FEEL: ON or OFF 11.8.1 Sequence Diagram Maintains room temp at desired level by controlling Heating Elements: HE1 or HE2. (RT - SPT) in H/M/L IFAN...
  • Page 72 CONTROL SYSTEM 11.9 Heating, RH Group, with AUTOFAN Mode: HEAT, AUTO (at Heating) Temp: Selected desired temperature Fan: AUTO Timer: Any I-FEEL: ON or OFF 11.9.1 Sequence Diagram Maintains room temp. at desired level by controlling the 2-Stage Electric Heaters. (RT - SPT) in IFAN 30 sec...
  • Page 73 CONTROL SYSTEM 11.10 Automatic Cooling or Heating 11.10.1 Automatic Cooling or Heating - General The AUTO Mode is for models with compressor and the WVL-RH only. The WVL-ST, RC and SH units do not work in AUTO Mode. Mode Definition Mode: AUTO Temp: Selected desired temperature...

  • Page 74: Control System

    CONTROL SYSTEM 11.10.2 Sequence Diagrams Auto Cooling or Heating, RC or SH Groups Maintains room temp. at desired level by selecting between cooling and heating modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode Auto Heat Mode > 4 min >...
  • Page 75 CONTROL SYSTEM Auto Cooling or Heating RH Group Maintains room temp. at desired level by selecting between Cooling or Heating Modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode Auto Heat Mode COMP & OFAN > 3 min >...
  • Page 76 CONTROL SYSTEM (RT - SPT) [ Time [min] DRY-ON DRY-OFF IFAN 5 minutes COMP ON time COMP & OFAN 6 min Max 15 minutes Max 15 minutes Note 2 Note1 & HE2 NOTES 1. When DRY is ON, the COMP is forced OFF for 3.5 min (longer than the 3 min Min COMP- OFF time) after every 15 min of continuous COMP operation.
  • Page 77 CONTROL SYSTEM 11.11.2 DRY, SH or RH group Mode: Temp: Selected desired temperature Fan: LOW (automatically selected by software) Timer: Any I-FEEL: Any Control function Reduces room humidity with minimum temp. fluctuations by operating in Cool Mode with LOW speed IFAN and HE. (RT - SPT) [ Time [min] IFAN...
  • Page 78 CONTROL SYSTEM 11.12 Protection 11.12.1 Cooling Mode Protections Indoor Coil Defrost Mode: COOLING, DRY, AUTO Temp: Selected desired temp. Fan: Timer: I-FEEL: ON or OFF Control Function Protects the indoor coil from ice formation at low ambient temperatures. ICT [ OFAN COMP IFAN...
  • Page 79 CONTROL SYSTEM High Pressure Protection Mode: (AUTO) COOLING or DRY Temp: Selected desired temperature Fan: Timer: Any I-FEEL: ON or OFF Control Function To protect the COMP from the high pressure build-up in the outdoor coil during normal cooling operation, by switching OFF the IFAN and COMP. OCT [ For all models except WAX &...
  • Page 80 CONTROL SYSTEM 11.12.2 Condensation Pump. Mode: Cool, Dry, Auto Temp: Selected desired temperature Fan: Timer: Any I FEEL: Control function: Prevent Condensed water from Overflowing. Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal OPER BLINK COMP/WVL is COMP...
  • Page 81 CONTROL SYSTEM 11.12.3 Heating Mode Protections Outdoor Coil Deicing (excluding RH Group) Mode: HEATING, AUTO (at heating) Temp: Selected desired temperature Fan: Timer: Any I-FEEL: Any Control function To protect the outdoor coil from ice formation by controlling COMP & RV operation. 1) Deicer Activation Algorithm a) Static deicer threshold is -5°C b) Dynamic deicer threshold changes of 3°C in 3 minutes in the OCT...
  • Page 82 CONTROL SYSTEM Deicing procedure OCT [ (DDT) 3 min 3 min max 12 min. COMP DI (note 1) DI (note 2) OFAN IFAN is forced to Low Speed IFAN HEs are forced ON IFAN Note 3 HEs are forced OFF OPER BLINK NOTES...
  • Page 83 CONTROL SYSTEM High Pressure Protection (excluding RH Group) Mode: (AUTO) HEATING Fan: Timer: Any I-FEEL: ON or OFF Control Function Protects the compressor from high pressure by switching OFF the OFAN and COMP. ICT [ For all models except WAX For WAX model COMP is forced OFF COMP...
  • Page 84 CONTROL SYSTEM 11.13 Forced Operation (Excluding PRX & PXD Models) Forced operation allows units to start, stop and operate in cooling or heating in preset temp. according to the following table: Forced Pre-set Temp for : Pre-set Temp for : Operation Mode MBX, P2000, PX Models FCD, RWK ,ELD, ECC, WAX, WNX, WMN Models...
  • Page 85 CONTROL SYSTEM 11.14 SPT Adjustment in Sleep Mode In COOL, AUTO COOL or DRY modes, the SPT adjustment is positive (from 0 to +3 In HEAT or AUTO HEAT modes, the SPT adjustment is negative (from 0 to -3 In other modes, there is no SPT adjustment. The SPT adjustment is cancelled when the Sleep mode is cancelled.
  • Page 86 CONTROL SYSTEM 11.14.1 Time Adjustment in SLEEP Mode In 10V4, the user can make use of the Off-Timer to extend the Sleep Time from 7 hours to 12 hour (max). The operation of the new “Extended Sleep Mode” is illustrated by the graphs below.
  • Page 87 CONTROL SYSTEM 11.15 Controller Self-Test Procedure 11.15.1 By Shorting Test Jumper J1 SELF-TEST FLOW CHART FOR CONTROLLER (VERSION 4V5 OR HIGHER) SHORT JUMPER Step 1 RC/ST TEST (CONTROL PCB) MODEL CONFIGURATION TEST PRESS ON Step 2 POWER STEP MOTOR TEST BUTTON FREQUENCY TEST...
  • Page 88 CONTROL SYSTEM 11.15.2 By Remote Control Settings: STEP 1: TURNING ON THE POWER. Turn ON the power, make sure that the unit is in operation. STEP 2 : ENABLE SELF-TEST MODE 1) Use the remote control to send the first settings to display / indoor unit HEAT mode, HIGH IFAN, set temperature to 16 ºC, no I-FEEL Sleep or any other timer settings are needed.
  • Page 89 CONTROL SYSTEM STEP 3: AUTO LED WALK TEST. 1) All the LEDS will turn OFF. 2) All the LEDS will turn ON for 1 second one by one in the following sequence: STAND-BY OPERATE TIMER FILTER COOL HEAT. 3) In PRX all the LEDS will turn ON for 1 second one by one in the following sequence : 18 °c 20 °c 22 °c...
  • Page 90 CONTROL SYSTEM Fail condition: 0 sec - STAND-BY is turned ON 3 sec - STAND-BY, OPER, TIMER and FILTER are turned ON When the timing reset test is completed, the next test will start automatically. STEP 8: MEMORY TEST (EEPROM) The test purpose is to check if the memory is functioning correctly.
  • Page 91 CONTROL SYSTEM 11.16 System Diagnostics Pressing Mode button for 5-10 seconds in SB or any other operation mode will activate the DIAGNOSTICS mode, acknowledged by 3 short beeps and lighting of COOL and HEAT LEDs. In DIAGNOSTICS mode, system failures will be indicated by the blinking of HEAT & COOL LEDs.

  • Page 92: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING ELECTRICAL & CONTROL TROUBLESHOOTING ATTENTION : check for broken or loose cable lugs first. SYMPTON PROBABLE CAUSE CORRECTIVE ACTION The power supply There is no correct voltage -If the voltage is low repair power supply. indicator (red led) between the line and doesn’t light up.
  • Page 93 TROUBLESHOOTING ATTENTION : check for broken or loose cable lugs first SYMPTON PROBABLE CAUSE CORRECTIVE ACTION Only indoor fan and Outdoor fan blocked. - Remove obstructions. compressor working. Only indoor fan -Run capacitor of outdoor - Replace capacitor. working. fan motor faulty. -Windings of outdoor fan -Replace motor.

  • Page 94: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Indoor Unit: KN 24 / 30 Service Manual - KN Series Revision Y06-02 13-1 CONTENT...
  • Page 95 EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Indoor Unit: KN 24 Part No Item Desc 455000103 Double patch Capacitor for fan 452949400 MKS DST-5 911-085-02 4523162 TRANSFORMER ASSY. 2114200004 E-Parts Box Cover1 for SPL OEM 2114200005 E-Parts Box Cover2 for SPL OEM 2114200008 E-Parts Box Assy for SPL OEM 4523278...
  • Page 96 EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Indoor Unit: KN 30 Part No Item Desc 455000103 Double patch Capacitor for fan 4523482 Main PCB HK 911-085-01 10v5 None 4523482 Main PCB HK 911-085-01 10v5 4523162 TRANSFORMER ASSY. 2114200004 E-Parts Box Cover1 for SPL OEM 2114200005 E-Parts Box Cover2 for SPL OEM 2114200008...
  • Page 97 EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Indoor Unit: KN 36 / 45 13-4 Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 98 4525520 OEM CASSETTE 90X90 KN-36 INDOOR MOTOR 4525530 Pump PSB-12 for OEM CASSETTE90X90 452928700 KN GRILL Assy. ELECTRA 452997001 Front panel ELECTRA (EXPORT) EL-MBQ4-02C.1- 455000103 Double patch Capacitor for fan 8141990001 Hanger for panel assy. 8144200001 Switch cover for grille 8224200005 Ä...
  • Page 99 4525521 OEM CASSETTE90X90 KN-45 INDOOR MOTOR 4525530 Pump PSB-12 for OEM CASSETTE90X90 452928700 KN GRILL Assy. ELECTRA 452997001 Front panel ELECTRA (EXPORT) EL-MBQ4-02C.1- 455000106 Double patch Capacitor for fan 8141990001 Hanger for panel assy. 8144200001 Switch cover for grille 8224200005...
  • Page 100 EXPLODED VIEWS AND SPARE PARTS LISTS 13.7 Outdoor Unit: OU7-24 RC 1PH Service Manual - KN Series Revision Y06-02 13-7 CONTENT...
  • Page 101 EXPLODED VIEWS AND SPARE PARTS LISTS 13.8 Indoor Unit: OU7-24 RC 1PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402495 BOARD TPHN 5B 433285 COIL OU7-24 HDR 433288 CAPILLARY ASSY OU7-24 R410A 433291 TUBING ASSY OU7 R410A 433293 COMPRESSOR NN27VBAMT 433294 NEW BASE ASSY OU 2005 EXPORT...
  • Page 102 EXPLODED VIEWS AND SPARE PARTS LISTS 13.9 Outdoor Unit: OU7-24 ST 1PH *Optional Service Manual - KN Series Revision Y06-02 13-9 CONTENT...
  • Page 103 EXPLODED VIEWS AND SPARE PARTS LISTS 13.10 Outdoor Unit: OU7-24 ST 1PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402495 BOARD TPHN 5B 433293 COMPRESSOR NN27VBAMT 433705 NEW BASE ASSY OU 2005 LOCAL 433816 SUCTION ASSY OU7 R410A 433817 TUBING ASSY OU7 ST R410A 433845 CAPILLARY ASSY OU7-24 ST R410A...
  • Page 104 EXPLODED VIEWS AND SPARE PARTS LISTS 13.11 Outdoor Unit: OU7-24 RC 3PH Service Manual - KN Series Revision Y06-02 13-11 CONTENT...
  • Page 105 EXPLODED VIEWS AND SPARE PARTS LISTS 13.12 Outdoor Unit: OU7-24 RC 3PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402494 BOARD TPHN 3C 433285 COIL OU7-24 HDR 433288 CAPILLARY ASSY OU7-24 R410A 433291 TUBING ASSY OU7 R410A 433294 NEW BASE ASSY OU 2005 EXPORT 433753 COMPRESSOR NN27YDAMT...
  • Page 106 EXPLODED VIEWS AND SPARE PARTS LISTS 13.13 Outdoor Unit: OU7-24 ST 3PH *Optional Service Manual - KN Series Revision Y06-02 13-13 CONTENT...
  • Page 107 EXPLODED VIEWS AND SPARE PARTS LISTS 13.14 Outdoor Unit: OU7-24 ST 3PH SP No. Part No. Description 437045 LARGE UPPER COVER CUE 433280 SIDE PANEL OU7-24 R410A 436357 SMALL ELECTRICAL COVER CUE 439329 COVERAIR COLLECTOR 437091 OU SQUARE FAN GUARD 433705 NEW BASE ASSY OU 2005 LOCAL R410 433846...
  • Page 108 EXPLODED VIEWS AND SPARE PARTS LISTS 13.15 Outdoor Unit: OU8-30 RC 1PH Service Manual - KN Series Revision Y06-02 13-15 CONTENT...
  • Page 109 EXPLODED VIEWS AND SPARE PARTS LISTS 13.16 Outdoor Unit: OU8-30 RC 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433294 NEW BASE ASSY OU 2005 EXPORT 433807...
  • Page 110 EXPLODED VIEWS AND SPARE PARTS LISTS 13.17 Outdoor Unit: OU8-30 RC 1PH Soft Starter Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433294...
  • Page 111 EXPLODED VIEWS AND SPARE PARTS LISTS 13.18 Outdoor Unit: OU8-30 ST 1PH 13-18 Revision Y06-02 Service Manual - KN Series CONTENT...
  • Page 112 EXPLODED VIEWS AND SPARE PARTS LISTS 13.19 Outdoor Unit: OU8-30 ST 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433705 NEW BASE ASSY OU 2005 LOCAL 433834...
  • Page 113 EXPLODED VIEWS AND SPARE PARTS LISTS 13.20 Outdoor Unit: OU8-30 ST 1PH Soft Starter Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433705...
  • Page 114 EXPLODED VIEWS AND SPARE PARTS LISTS 13.21 Outdoor Unit: OU8-30 RC 3PH Service Manual - KN Series Revision Y06-02 13-21 CONTENT...
  • Page 115 EXPLODED VIEWS AND SPARE PARTS LISTS 13.22 Outdoor Unit: OU8-30 RC 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433294 NEW BASE ASSY OU 2005 EXPORT 433807...
  • Page 116 EXPLODED VIEWS AND SPARE PARTS LISTS 13.23 Outdoor Unit: OU8-30 ST 3PH Service Manual - KN Series Revision Y06-02 13-23 CONTENT...
  • Page 117 EXPLODED VIEWS AND SPARE PARTS LISTS 13.24 Outdoor Unit: OU8-30 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433705 NEW BASE ASSY OU 2005 LOCAL 433834...
  • Page 118 EXPLODED VIEWS AND SPARE PARTS LISTS 13.25 Outdoor Unit: OU10-36 RC 1PH Service Manual - KN Series Revision Y06-02 13-25 CONTENT...
  • Page 119 EXPLODED VIEWS AND SPARE PARTS LISTS 13.26 Outdoor Unit: OU10-36 RC 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433294 NEW BASE ASSY OU 2005 EXPORT 433854...
  • Page 120 EXPLODED VIEWS AND SPARE PARTS LISTS 13.27 Outdoor Unit: OU10-36 ST 3PH Service Manual - KN Series Revision Y06-02 13-27 CONTENT...
  • Page 121 EXPLODED VIEWS AND SPARE PARTS LISTS 13.28 Outdoor Unit: OU10-36 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433705 NEW BASE ASSY OU 2005 LOCAL 433868...
  • Page 122 EXPLODED VIEWS AND SPARE PARTS LISTS 13.29 Outdoor Unit: OU10-36 RC 3PH Service Manual - KN Series Revision Y06-02 13-29 CONTENT...
  • Page 123 EXPLODED VIEWS AND SPARE PARTS LISTS 13.30 Outdoor Unit: OU10-36 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433294 NEW BASE ASSY OU 2005 EXPORT 433854...
  • Page 124 EXPLODED VIEWS AND SPARE PARTS LISTS 13.31 Outdoor Unit: OU10-36 ST 3PH Service Manual - KN Series Revision Y06-02 13-31 CONTENT...
  • Page 125 EXPLODED VIEWS AND SPARE PARTS LISTS 13.32 Outdoor Unit: OU10-36 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433705 NEW BASE ASSY OU 2005 LOCAL 433868...
  • Page 126 EXPLODED VIEWS AND SPARE PARTS LISTS 13.33 Outdoor Unit: OU10-47 RC 3PH Service Manual - KN Series Revision Y06-02 13-33 CONTENT...
  • Page 127 EXPLODED VIEWS AND SPARE PARTS LISTS 13.34 Outdoor Unit: OU10-47 RC 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 439833 NEW BASE ASSY OU EXPORT 433875...
  • Page 128 EXPLODED VIEWS AND SPARE PARTS LISTS 13.35 Outdoor Unit: OU10-47 ST 3PH Service Manual - KN Series Revision Y06-02 13-35 CONTENT...
  • Page 129 EXPLODED VIEWS AND SPARE PARTS LISTS 13.36 Outdoor Unit: OU10-47 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 439841 NEW BASE ASSY OU LOCAL 433876...

  • Page 130: Remote Control

    OPTIONAL ACCESSORIES OPTIONAL ACCESSORIES 14.1 RCW Wall Mounted Remote Cntrol 14.1.1 The RCW wall mounted remote control can be fitted to a large range and models, It can be used as IR (wirless mode) or wired controler.the RCW can control up to15 indoor units using the same settings (on its wired aplication), The max wiring length between the controller to the last indoor unit is 300m.
  • Page 131 OPTIONAL ACCESSORIES 14.2 RCW2 Wall Mounted Remote Cntrol 14.2.1 The RCW2 wall mounted remote controler is a wired controler that can provide affective controling management up to 15 different settings and temp’ zones. The RCW2 can be connected up to a max’ of 32 units,allowing a max wiring length of 1000m.
  • Page 132 OPTIONAL ACCESSORIES 14.3 RCW/RCW2 Wiring Connections as Shown on Kit Service Manual - KN Series 14-3 Revision Y06-02 CONTENT...
  • Page 133 OPTIONAL ACCESSORIES All Season Kit Installation Instruction(for ST units only) Switch off power supply to the unit Fig.1 ● Remove: – Cover A; – Power panel handle B; – Side cover C (if it exist). Fig.1 Fig.2 ● Mount the Fan speed controller on the partition of the compressor compartment in the holes pro- vided, using four supplied screws .
  • Page 134 OPTIONAL ACCESSORIES Fig.4 Flare nut ● Connect capillary E to T-valve. Use Copper sealing gasket between the flare nut and the connection to T-valve. Note: ● Installing the Copper sealing gasket is mandatory in order to avoid refrigerant leak. T-valve Cooper sealing gasket Fig.4...
  • Page 135 OPTIONAL ACCESSORIES Fig.7 ● Verify the wiring to electrical diagram. 1PH Unit 3PH Unit Capillary loop Fig.8 ● Arrange the wires and capillary tube together with plastic ties, don’t fold or break the capillary tube,keep a large loop for extra length of capillary Plastic tie tube.

  • Page 136: Appendix A

    APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► OPERATION MANUAL KN 24, 30, 36, 45 ► INSTALLATION MANUAL KN 24, 30, 36, 45 Service Manual - KN Series Revision Y06-02 15-1 CONTENT...

  • Page 137: Table Of Contents

    CONTENTS INSTALLATION ........................1 REQUIREMENT FOR ELECTRIC SAFETY ............... 2 PARTS NAMES AND THEIR FUNCTIONS ................ 3 OPERATION ATTENTION ....................4 TEMPORARY OPERATIONS ..................... 5 ADJUSTING AIR FLOW DIRECTION ................. 5 HINTS FOR ECONOMICAL OPERATION ................6 MAINTAINANCE ......................... 6 PHENOMENA NOT CONCERNING MALFUNCTIONS ............
  • Page 138 INSTALLATION CAUTION Don’t attempt to install this unit yourself. The unit requires installation by qualified persons. POWER • Be sure to use the special switch with effective grounding. The connector socket in the air conditioner has been grounding already, please don’t change it freely. •...
  • Page 139 REQUIREMENT FOR ELECTRIC SAFETY 1. The wiring work must be done by qualified person. 2. All the wiring must be performed according to safety rules. 3. The main switch must be linked well with the earth. 4. A separate power source for the air conditioner according to the specifications as follow must be provided.

  • Page 140: Parts Names And Their Functions

    PARTS NAMES AND THEIR FUNCTIONS The air conditioner consists of the indoor unit , the outdoor unit , the connecting pipe and the remote controller. Display Panel NOTICE This chart is based on KN-27SH, so, a few differences may exist on the outlook and functions from yours.

  • Page 141: Operation Attention

    OPERATION ATTENTION NOTICE • Please read this “Owner’s Manual” carefully operation. • This air conditioner is designed to provide comfortable circumstances and to guarantee the functions described in this manual only. 1. CHECK BEFORE OPERATION • Check that the ground wiring is not broken off and is connected well. •...

  • Page 142: Temporary Operations

    TEMPORARY OPERATIONS This function is used to operate the unit temporarily in case you misplace the remote controller or its batteries are exhausted. Two modes including mandatory HEAT and mandatory COOL can be selected through the TEMPORARY BUTTON on the air inlet grill control box of the indoor unit.

  • Page 143: Hints For Economical Operation

    HINTS FOR ECONOMICAL OPERATION The following should be noticed ensure an economical operation. (Refer to corresponding chapter for details) • Adjust the air flow direction properly to avoid winding toward your body. • Adjust the room temperature properly to get a comfortable situation and to avoid supercooling and superheat.
  • Page 144 2. Take out the air-in grill (together with the air filter shown in sketch B) Pull the air-in grill down at 45° and lift it up to take out the grill. 3. Dismantle the air filter. 4. Clean the air filter (Vacuum cleaner or pure water may be used to clean the air filter. If the dust accumulation is too heavy, please use soft brush and mild detergent to clean it and dry out in cool place).

  • Page 145: Phenomena Not Concerning Malfunctions

    RESTART AFTER A LONG TIME 1. Check before operation • Check that air outlets of the outdoor and indoor are not blocked. • Check that the ground wiring is not broken off and is connected well. 2. Restore the air filter and the front panel The air filter and the front panel must be fixed to the original position after having been cleaned.

  • Page 146: Troubles And Causes (Concerning The Remote Controller)

    TROUBLES AND CAUSES (concerning the unit) 1. If any or the following conditions occurs, stop the air conditioner immediately, set off the power: • The indicator lamps flash rapidly (two times per second), you disconnect the unit with the power and then connect it again, but the lamp still flashes.
  • Page 147 The Transmission indicator Never Comes On Symptoms Causes Reason and Disposal The remote control signal • Check whether the batteries The remote control signal is not is not transmitted when in the remote controller are transmitted, because the power the I/O button is pushed. exhausted.
  • Page 148 CONTENTS 1. PRECAUTIONS ......................1 2. INSTALLATION INFORMATION ................... 2 3. ATTACHED FITTINGS ....................3 4. INSTALLATION PLACE ....................4 5. INDOOR UNIT INSTALLATION ..................5 6. OUTDOOR UNIT INSTALLATION ................8 7. INSTALL THE CONNECTING PIPE ................9 8. CONNECT THE DAIN PIPE ..................13 9.

  • Page 149: Safety Considerations

    PRECAUTION SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electric components. Only trained and qualified service personnel should install, repair or service air conditioning equipment. All other operations should be performed by trained service personnel. When working on air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply.

  • Page 150: Installation Information

    NOTE Remark per EMC Directive 89/336/EEC To prevent flicker impressions during the start of the compressor (technical process), following installation conditions do apply. 1. The power connection for the air conditioner has to be done at the main power distribution. The distribution has to be of a low impedance, normally the required impedance reaches at a 32 A fusing point.
  • Page 151 ATTACHED FITTINGS Please check whether the following fittings are of full scope. If there are some attached fittings free from use, please restore them carefully. Installation fittings Drainpipe Fittings 1. Expansible hook ........4 5. Out-let pipe sheath ........1 2.

  • Page 152: Installation Place

    INSTALLATION PLACE CAUTION Location in the following places may cause malfunction of the machine. (If unavoidable, please consult your local dealer) a. There is petrolatum existing. b. There is salty air surrounding (near the coast) c. There is caustic gas (the sulfide, for example) existing in the air (near a hot spring). d.

  • Page 153: Indoor Unit Installation

    INDOOR UNIT INSTALLATION 1. Install the main body A. The existing ceiling (to be horizontal) a. Please cut a quadrangular hole of 880X880mm in the ceiling according to the shape of the installation paper board. (Refer to Chart 3, 4) •...
  • Page 154 Note: 24/27/30 Series B 240mm 36/45 Series B 310mm Hook Body Body Central hole Ceiling Panel Chart 4 Installation paper Body M6X12 board Body Chart 7 Ceiling Chart 6 Chart 5 B. New built houses and ceilings a. In the case of new built house, the hook can be embedded in advance (refer to the A. B mentioned above).
  • Page 155 (3)Install the panel a. Align the swing motor on the panel to the tubing joints of the body properly. (Refer to chart 11) b. Fix hooks of the panel at swing motor and its opposite sides to the hooks of corresponding water receiver.

  • Page 156: Outdoor Unit Installation

    OUTDOOR UNIT INSTALLATION CAUTIONS • Keep this unit away from direct radiation of the sun or other heaters. If unavoidable, please cover it with a shelter. • In places hear coast or with a high attitude where the wind is violent, please install the outdoor unit against the wall to ensure normal performance.
  • Page 157 INSTALL THE CONNECTING PIPE CAUTIONS check whether the height drop between the indoor unit and outdoor unit , the length of refrigerant pipe, and the number of the bends meet the following requirements: The max height drop ........................20m. (If the height drop is more than 10m, you had better put the outdoor unit over above the indoor unit.) The length of refrigerant pipe ..................
  • Page 158 Use the market brass pipe • Be sure to use the same insulating materials when you buy the brass pipe. 2. Locate The Pipes • Drill a hole in the wall (suitable just for the size of the wall conduit, 50,53,71 series diameter is M90mm, and 120 series diameter is M105mm in general), then set on the fittings such as the wall conduit and its cover.
  • Page 159 Expel the air with a vacuum pump (Refer to Chart 27) (please refer to its manual for the way of using manifold value) 1. Loosen and remove the maintenance nuts of stop values A and B, and connect the charge hose of the manifold value with the maintenance terminator of stop value A.
  • Page 160 7. Disassemble the charge hose from the repair-mouth of stop value A, and fasten the unit. Manifold value Multi-meter Pressure meter Outdoor Indoor unit Gas-side unit -76CmHg Hi-lever Lo-lever Charge hose Charge hose Liquid side Vacuum Trap Pipe joint pump Chart 26 Chart 25 Lo-lever...
  • Page 161 INSULATION • Be sure to with insulating materials cover all the exposed parts of the flare pipe joints and refrigerant pipe on the liquid-side and the gas-side .Ensure that there is no gap between them. • Incomplete insulation may cause water condensation. CONNECT THE DRAIN PIPE 1.
  • Page 162 2. Drainage test • Check whether the drainpipe is unhindered • New built house should have this test done before paving the ceiling. 1) Refer to chart 32) Pump joint Test cover Test mouth Body Slow tube Water-receiver Drain plug Chart 32 2) Turn on the power, and operate the air conditioner under the “COOLING “...
  • Page 163 WIRING CAUTION 1. The air conditioner should use separate power supply with rated voltage. 2. The external power supply to the air conditioner should have ground wiring, which is linked to the ground wiring of the indoor and outdoor unit. 3.
  • Page 164 3. ELECTRICAL CONNECTIONS 3.1 Power supply WARNING Electrical connection shall be made only by authorized electricians and in accordance with local electrical requirements and codes. The system must be grounded. Single-phase models and three phase models are available; for each of them, the necessary wiring diagram is shown.
  • Page 165 OUTDOOR HEATER 1. Outdoor unit 8. Wireless Remote Control 2. Inter connecting cable 9. Wired Remote Control (optional) 3. Power supply 10. Remote ON/OFF Switch (by installer) 4. Semi-automatic switch 11. Control Cable (Shielded) 5. Indoor unit 12. Switch ON/OFF (by installer) 6.
  • Page 166 INDOOR 3-CORE Cable 3X1.5mm 3-CORE Cable YZW-300/500 3X1.5mm 5-CORE Cable RW-300/500 5X1.5mm POWER: 380V~50Hz Note: The cooling only type without the link listed by broken line KN-27 AIR CONDITIONER LINK CIRCUIT Chart 37 CONTENT...
  • Page 167 INDOOR Cable 3X2.5mm Cable 3X2.5mm Cable 3X4mm POWER: 220-230V~50Hz Note: The cooling only type without the link listed by broken line KN-24/27 AIR CONDITIONER LINK CIRCUIT Chart 38 CONTENT...
  • Page 168 TEST OPERATION 1. The test operation must be carried out after the entire installation has been completed. 2. Please confirm the following points before the test operation. • The indoor unit and outdoor unit are installed properly. • Tubing and wiring are correctly completed. •...

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