Airwell /yaz218 Service Manual
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Airwell /yaz218 Service Manual

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YAZ218
Indoor Units
Outdoor Units
AWSI-PNXA009/012-N11
CK09/12 DCI
SX09/12 DCI
DLF09/12 DCI
AWAU-YAZ218-H11
XLF09/12 DCI
AWSI-XLD009/012-N11
AWSI-HAD007/009/012-N11
AWSI-HFD007/009/012-N11
REFRIGERANT
R410A
HEAT PUMP
FEBERARY-2011
SM YAZ218 1-A.2 GB
Version:2
0
SM YAZ218 1-A.2 GB

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Summary of Contents for Airwell /yaz218

  • Page 1 YAZ218 Indoor Units Outdoor Units AWSI-PNXA009/012-N11 CK09/12 DCI SX09/12 DCI DLF09/12 DCI AWAU-YAZ218-H11 XLF09/12 DCI AWSI-XLD009/012-N11 AWSI-HAD007/009/012-N11 AWSI-HFD007/009/012-N11 REFRIGERANT R410A HEAT PUMP FEBERARY-2011 SM YAZ218 1-A.2 GB Version:2 SM YAZ218 1-A.2 GB...
  • Page 2 Table of Contents 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 Table of Contents INTRODUCTION ..........................1-1 PRODUCT DATA SHEET....................... 2-1 RATING CONDITIONS ........................3-1 OUTLINE DIMENSIONS......................... 4-1 PERFORMANCE DATA ......................... 5-1 OPERATING CURVES ........................6-1 ELECTRICAL DATA........................7-1 WIRING DIAGRAM......................... 8-1 REFRIGERATION DIAGRAM ......................9-1 TUBING CONNECTIONS ....................... 10-1 CONTROL SYSTEM ........................

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The YAZ218 is a multi-tubing system with two connected indoor units. The multi-split inverter is a high-level technology product for residential and commercial application offering comfort, low noise operation and energy saving. Main Features 1.2.1 High Technology •...
  • Page 5 INTRODUCTION Matching Table INDOOR UNITS AWSI-PNXA009-N11 AWSI-PNXA012-N11 CK09 DCI CK12 DCI SX09 DCI SX12 DCI DLF09 DCI DLF12 DCI XLF09 DCI / AWSI-XLD009-N11 XLF12 DCI / AWSI-XLD012-N11 AWSI-HAD007-N11 AWSI-HAD009-N11 AWSI-HAD012-N11 AWSI-HFD007-N11 AWSI-HFD009-N11 AWSI-HFD012-N11 SM YAZ218 1-A.2 GB...
  • Page 6 INTRODUCTION Indoor Unit combinations YAZ218 Unit A Unit B Code Sum Nominal Indoor Units Combination SM YAZ218 1-A.2 GB...

  • Page 7: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET Outdoor YAZ218 Specifications Model Indoor Unit Model Outdoor Unit YAZ218 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 17050(4090~21840) 20480(3410~23200) Capacity (4) 5.0(1.2-6.4) 6.0(1.0-6.8) Power input (4) 1.47(0.42-2.25) 1.66(0.39-1.85) EER (Cooling) or COP(Heating) (4) 3.40 3.61 Energy efficiency class...
  • Page 8 PRODUCT DATA SHEET Indoor Units Data 2.2.1 AWSI-PNXA009-N11 Model Indoor Unit AWSI-PNXA009-N11 Installation Method of Pipe Flared Power supply V/Ph/Hz 220-230V/1 Ph/50 Hz Fan type & quantity Crossflow x 1 Fan speeds H/M/L 1050/900/800 Air flow (1) H/M/L m3/hr 530/430/330 External static pressure Sound power level (2) H/M/L...
  • Page 9 PRODUCT DATASHEET 2.2.3 CK09 DCI Model Indoor Unit CK09 DCI Installation Method of Pipe Flared Power supply V/Ph/Hz 220-230V/1 Ph/50 Hz Fan type & quantity Centrifugal x 1 Fan speeds H/M/L 550/500/450 600/520/450 Air flow (1) H/M/L m3/hr 420/370/320 470/390/320 External static pressure Sound power level (2) H/M/L...

  • Page 10: Units Per Pallet Units

    PRODUCT DATA SHEET 2.2.5 SX09 DCI Model Indoor Unit SX09 DCI Installation Method of Pipe Flared Power supply V/Ph/Hz 220-240/1/50 Fan type & quantity Centifugal x 2 Fan speeds H/M/L 760/670/500 Air flow (1) H/M/L m3/hr 400/350/300 External static pressure Sound power level (2) H/M/L dB(A)
  • Page 11 PRODUCT DATASHEET 2.2.7 DLF09 DCI Model Indoor Unit DLF09 DCI Installation Method of Pipe DUCTED Power supply V/Ph/Hz 220-240/1/50 Fan type & quantity Centifugal x 2 Fan speeds H/M/L 920/810/740 Air flow (1) H/M/L m3/hr 620/560/490 External static pressure Min -Max 0-30 Sound power level (2) H/M/L...
  • Page 12 PRODUCT DATA SHEET 2.2.9 XLF09 DCI Model Indoor Unit XLF09 DCI/XLD009-N11 Installation Method of Pipe Flared Power supply V/Ph/Hz 220-240/1/50 Fan type & quantity Helicoid x 1 Fan speeds H/M/L 520/490/450 Air flow (1) H/M/L m3/hr 390/370/330 External static pressure Sound power level (2) H/M/L dB(A)
  • Page 13 PRODUCT DATASHEET 2.2.11 AWSI-HAD007-N11 Model Indoor Unit AWSI-HAD007-N11 Installation Method of Pipe Flared Power supply V/Ph/Hz 220-240/1/50 Fan type & quantity Crossflow x 1 Fan speeds H/M/L 1050/900/750 Air flow (1) H/M/L m3/hr 350/300/250 External static pressure Sound power level (2) dB(A) Sound pressure level(3) H/M/L...
  • Page 14 PRODUCT DATA SHEET 2.2.13 AWSI-HAD012-N11 Model Indoor Unit AWSI-HAD012-N11 Installation Method of Pipe Flared Power supply V/Ph/Hz 220-240/1/50 Fan type & quantity Crossflow x 1 Fan speeds H/M/L 1150/950/750 Air flow (1) H/M/L m3/hr 550/450/350 External static pressure Sound power level (2) H/M/L dB(A) Sound pressure level(3)
  • Page 15 PRODUCT DATASHEET 2.2.15 AWSI-HFD009-N11 Model Indoor Unit AWSI-HFD009-N11 Installation Method of Pipe Flared Power supply V/Ph/Hz 220-240/1/50 Fan type & quantity Crossflow x 1 Fan speeds H/M/L 1200/1050/850 Air flow (1) H/M/L m3/hr 420/350/270 External static pressure Sound power level (2) H/M/L dB(A) 54/50/47...

  • Page 16: Rating Conditions

    RATING CONDITIONS RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). 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 Upper limit...

  • Page 17: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit : PNXA009/012 SM YAZ218 1-A.2 GB...
  • Page 18 OUTLINE DIMENSIONS Indoor Unit : CK09/12 DCI Unit Main unit Insulation Front Step Front width Front height Effective Height Model 625/725 25/35 SM YAZ218 1-A.2 GB...
  • Page 19 OUTLINE DIMENSION Indoor Unit : SX09/12 DCI Indoor Unit : XLF09/12 DCI SM YAZ218 1-A.2 GB...
  • Page 20 OUTLINE DIMENSIONS Indoor Unit : DLF09/12 DCI SM YAZ218 1-A.2 GB...
  • Page 21 OUTLINE DIMENSION OUTDOOR UNIT : YAZ218 进气口 出气口 SM YAZ218 1-A.2 GB...

  • Page 22: Performance Data

    PERFORMANCE DATA PERFORMANCE DATA Outdoor Unit YAZ218 DCI Combinations 5.1.1 Cooling operating Capacity Power Consumption [W] Energy Indoor Nominal Efficiency Nom. Min. Max. Nom. Min. Max. model Class 2200 2200 1200 2500 3.67 2500 2500 1200 3600 1000 3.57 3500 3500 1200 4300...
  • Page 23 PERFORMANCE DATA PNXA009 5.2.1 Cooling Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 24 PERFORMANCE DATA 5.2.3 Heating Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62 -10/-12 0.72...
  • Page 25 PERFORMANCE DATA PNXA012 5.3.1 Cooling Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 26 PERFORMANCE DATA 5.3.3 Heating Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62 -10/-12 0.72...
  • Page 27 PERFORMANCE DATA CK09 DCI 5.4.1 Cooling Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 28 PERFORMANCE DATA 5.4.3 Heating Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62 -10/-12 0.72...
  • Page 29 PERFORMANCE DATA CK12 DCI 5.5.1 Cooling Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 TEMPERATURE DATA [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 30 PERFORMANCE DATA 5.5.3 Heating Capacity Factors - Unit A,B 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62 -10/-12 0.72...
  • Page 31 PERFORMANCE DATA Tubing Length Capacity Correction Factor 5.6.1 Cooling Tubing Length Capacity Ratio - Cooling (1 Unit) 1.06 1.01 0.96 0.91 0.86 0.81 0.76 Tubing Length [m] 5.6.2 Heating Tubing Length Capacity Ratio - Heating (1 Unit) 1.06 1.01 0.96 0.91 0.86 0.81...

  • Page 32: Operating Curves

    OPERATING CURVES OPERATING CURVES Model: YAZ218 DCI 6.1.1 Cooling – Technician Mode SM YAZ218 1-A.2 GB...
  • Page 33 OPERATING CURVES 6.1.2 Heating – Technician Mode SM YAZ218 1-A.2 GB...
  • Page 34 OPERATING CURVES 6.1.3 Tubing Length correction Factor SM YAZ218 1-A.2 GB...

  • Page 35: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Power Supply 1 PH, 220-240 VAC, 50Hz Connected to Outdoor Maximum Current 13.7 A Inrush Current 35 A Starting Current Circuit breaker Power supply wiring no. x cross section 3 X 2.0 mm Interconnecting cable no. x cross section 4 X 1.5 mm (For each IDU) Note:...

  • Page 36: Wiring Diagram

    WIRING DIAGRAM WIRING DIAGRAM P106 P104 P501 P201 P202 P503 P108 P109 P804 P803 P801 P802 P105 P502 OUTDOOR CONTROLLER FUSE P103 CN801 P102 P805 P601 P602 C (For MODEL P101 P107 1 2 3 4 6 5 4 DMSMP single) SETTING FERRITE...

  • Page 37: Refrigeration Diagram

    REFRIGERATION DIAGRAM REFRIGERATION DIAGRAM YAZ218 Cooling Mode SM YAZ218 1-A.2 GB...
  • Page 38 REFRIGERATION DIAGRAM YAZ218 Heating Mode SM YAZ218 1-A.2 GB...

  • Page 39: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS 10-1 SM YAZ218 1-A.2 GB...

  • Page 40: Control System

    CONTROL SYSTEM CONTROL SYSTEM 11.1 Abbreviations Abbreviation Definition Air Condition Building Management System System Power Compressor Top Temperature sensor DC Inverter Electronic Expansion Valve Heating Element Human Machine Interface Heat Sink Temperature sensor Hertz (1/sec) – electrical frequency Indoor Coil Temperature (RT2) sensor Indoor Unit Micro Controller Unit Outdoor Air Temperature sensor...

  • Page 41: Product Overview

    CONTROL SYSTEM 11.2 Product Overview 11.2.1 Compressor DC brush less and sensor less motor inverter driven compressor. 11.2.2 Outdoor Fan AC motor. 11.2.3 Reverse Valve set the direction of refrigerant flow in the system, thus setting the operation mode for cooling or heating. When the solenoid is powered, system will work in heat mode.
  • Page 42 The test comes to check the total IDU capacity code to match the outdoor unit capacity. The capacity groups of the IDU’s are translated into capacity codes according to the following table: Capacity group Capacity Code For Model Q (YBD018/YAZ218) Total Detected IDU Code (Sum of IDU code) Detected IDU units Minimum Allowed Maximum Allowed Whenever the sum of the IDU code is outside the range the unit will be forced to Idle Mode and report: “Mismatch between IDU and ODU models”.
  • Page 43 Indoor Capacity ODU Model Communication channel Single- Non Hydro Single- Hydro Com Channel 1 (YBD018/YAZ218) Com Channel 2 Com Channel 3 Com Channel 4 Notes 1. The outdoor will keep establishing normal communication with the indoor or DMSMP. 2. The outdoor will show diagnostics normally.
  • Page 44 CONTROL SYSTEM Each channel that is identified as ‘no communication’ channel will be referred as STBY unit. The unit resumes its normal operation with only the operative channels. 11.3.3 Temperature Measurements 11.3.3.1 Thermistor failures definition Thermistor Type a – Disconnected Type b –...

  • Page 45: Indoor Unit Control

    CONTROL SYSTEM 11.4 Indoor Unit Control 11.4.1 Indoor Fan Control 10 Indoor fan speeds are determined for each model. 5 speeds for each mode cool/dry/fan or heat. When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly at set speed.
  • Page 46 CONTROL SYSTEM 11.4.3.2 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature: ICTST ICTVL ICTL ICTH ICTT 11.4.4 Auto Cool/Heat Mode When in auto cool heat mode unit will automatically select between cool and heat mode according to the difference between actual room temperature and user set point temperature (ΔT).
  • Page 47 CONTROL SYSTEM 11.4.9 On Unit Controls and Indicators 11.4.9.1 All Models Except for Floor/Ceiling model Lights up when the Air Conditioner is connected to power and ready to STAND BY receive the R/C commands INDICATOR Lights up during operation. Blinks for 300 msec to announce that a R/C infrared signal has been OPERATION received and stored.
  • Page 48 CONTROL SYSTEM Pressing this button decreases the SPT by 1 TEMP. SETTING Note: The Min SPT is 18 DOWN BUTTON Every short pressing , the next operation mode is selected, in this order :SB → Cool Mode → Heat Mode → SB → … MODE BUTTON In long pressing system enters diagnostic mode.
  • Page 49 CONTROL SYSTEM 11.5 Run Mode Run mode is the default operation mode of the system. This is the standard operation mode that is active in field application (at customer site). System can go from run mode to other operation modes through keyboard or serial ports. 11.5.1 Mode Setting Mode defines the ODU operation mode.
  • Page 50 CONTROL SYSTEM 11.5.2.3 Indoor Units NLOAD calculation The NLOAD setting is done by the indoor unit controller, based on a PI control scheme. The actual NLOAD to be sent to the outdoor unit controller is based on the preliminary LOAD calculation, the indoor fan speed, and the power shedding function.
  • Page 51 CONTROL SYSTEM 11.5.2.5 Speed Step Limitations 11.5.2.5.1 Step 1 and step 2 The compressor speed cannot go below or above during 3 continuous Step1Freq Step2Freq minutes once after the compressor starts up when the ODU unit changes from STBY 11.5.2.5.2 Step 3 limit The speed cannot go higher than unless it was operating for more than 1 Step3Freq...
  • Page 52 CONTROL SYSTEM 11.5.3.6 Balance time During the first minutes after SB, the correction is not calculated. After that, the correction value is updated every seconds. 11.5.3.7 EEV corrections The corrections in cool mode will keep the compressor in the proper operation temperature and will balance between the indoor units by controlling their super heat.
  • Page 53 CONTROL SYSTEM Base Heater at heating mode Note: ‘On’ state has higher priority. 11.5.7 Thermodynamic Protections Protection level definition Five protection levels are defined: Normal – No protection status is ON. Stop-Rise (SR) – System is in protection, first level D1 - System is in protection, second level D2 - System is in protection third level Stop-Compressor (SC) –...
  • Page 54 CONTROL SYSTEM 11.5.10 ODU Protections There are 3 ODU protections: • Compressor overheating • Heat sink overheating • System over power Operation logic of all protections is the same. The controlled input (CTT, HST, or PWR) is controlled by changing the protection level using the fuzzy logic algorithm according the input level and the change rate.
  • Page 55 CONTROL SYSTEM 11.5.11.2 Deicing Protection Procedure Threshold COMP HEAT COOL OFAN T1 = T2 = 36 seconds, T3 = 6 seconds 11.5.11.3 Condensate Water over Flow Protection Each of the pins P1, P2, P3 can have two options: 1 – When it is shorted with P4 0 –...
  • Page 56 CONTROL SYSTEM Water Level LEVEL4 LEVEL2&3 LEVEL1 Pump NLOAD BLINK OPER LED NORMAL 11.5.11.5 1 Level Logic (used in all models except for floor/ceiling models) Level Don’t care Normal Don’t care Overflow Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal...
  • Page 57 CONTROL SYSTEM 11.6 Installation Test Mode 11.6.1 Test Objectives • Find tube-communication wires mismatch. • Instruct the technician to match the tubes to the communication wires. • Find EEV or tubing problems. 11.6.2 Test Concept • The unit will open each EEV separately in cooling mode. •...
  • Page 58 CONTROL SYSTEM 4. During the test, the unit will show count down counter (in minutes). The test maximum time is 20 minutes. 5. When the test is finished, the system will show the test result, pass or fail. 6. You can scroll the menu to observe: a.
  • Page 59 CONTROL SYSTEM How to interpret the results (pf sub menu): Test Result (pf) Interpretation The test has never been done before. The test is pass The test is fail Outdoor air temperature is lower than 5 degrees. The installation test cannot be done. The selected number of the installed indoor units by the technician does not match the number of indoor units detected by the system.
  • Page 60 CONTROL SYSTEM Examples: Problem Correction (Crt) Technician Interpretation Technician Interpretation Display Display 2--:Cb Keep wire 2 on communication channel C 1--:CA Keep wire 1 inside communication channel C 3--:Cc Keep Wire 3 on communication channel C 2--:Cb Keep wire 2 inside communication channel C 1--:Cd Move wire 1 to communication channel C 3--:Cc...
  • Page 61 CONTROL SYSTEM 11.6.8 Matrix Table Test Result (tbl) IDU channels on the DMSMP Channel1 (j=1) Channel2 (j=2) Channel3 (j=3) Channel4 (j=4) =T/F/N/C =T/F/N/C =T/F/N/C =T/F/N/C EEV1 (i=1) =T/F/N/C =T/F/N/C =T/F/N/C =T/F/N/C channels EEV2 (i=2) on the =T/F/N/C =T/F/N/C =T/F/N/C =T/F/N/C EEV3 (i=3) DMSMP =T/F/N/C...
  • Page 62 CONTROL SYSTEM • All the connected indoor units will enter technician test at high indoor fan speed. • The outdoor unit will be working normally (according to the run mode control logic) except the following changes: o The dry contacts inputs will be ignored. o Protections will be operative for stop compressor (not to be implemented in the current version).

  • Page 63: User Interface

    CONTROL SYSTEM 11.8 User Interface 11.8.1 User interface description o The user interface uses three 7 segments, and 4 keys. o Keys, The 4 keys are: - Scroll - used to scroll between options (up and down) - Select - use to select an option - Escape - Will go up one level in the menu Select o The user interface concept is Tree menus.
  • Page 64 CONTROL SYSTEM 11.8.3 Menus 11.8.3.1 Main Menu Default (refer to the note) Technician Test (tt) ╚════════════╦══Technician Test Cool (ttC) ╚══Technician Test Cool (ttH) Installation Test (it) ╚════════════╦══Number of IDUs (nID)- IDU_Numbers ║ ╚═══════════════╦══1 ║ ╠══2 ║ ╠══3 ║ ╚══4 ╠══Begin test (bgn) ╠══...
  • Page 65 CONTROL SYSTEM Maximum 5 faults are presented for each unit (each IDUs/ODU). When no faults “-- “ sign will be shown. The active faults have higher priority for presentation than non active ones. Non active faults are presented according to their chronological order, starting from the latest one.
  • Page 66 CONTROL SYSTEM 11.8.3.2 Status (Sub Menu) IDU (IDU) ╚════════ ICT (ICT) ╚════════════╦══ICT1 (A) ╠══ICT2 (B) ╠══ICT3 (C) ╚══ICT4 (D) Operation Mode (Opr) ╚════════════╦══Operation Mode 1 (A) ╠══Operation Mode 2 (B) ╠══Operation Mode 3 (C) ╚══Operation Mode 4 (D) NLOAD (Ld) ╚════════════╦══NLOAD 1 (A) ╠══NLOAD 2 (B) ╠══NLOAD 3 (C)

  • Page 67: Jumper Settings

    CONTROL SYSTEM ╠══ EEV D (EED) ╠══ Power (Pr) ╠══ Current (Cur) ╚══ SW version (SOF) Timer (Tr) ╚════════ Compressor Time (COP) Notes o For the temperature display, when a thermistor is shorted, disconnected show FLT, when it’s disabled show DIS. o It is possible to present a number between 999 and 99,999 by alternating between two numbers (each number is presented for 1 second).
  • Page 68 CONTROL SYSTEM 11.10 System Parameters 11.10.1 General parameters Default Default Name Units Name Units Value Value minute second MinOFFTime DEICT2 minute second MinONTime DEICT3 2 / 60 /8 Hz / Sec/NA ℃ HzUp_CTTOH DSTF -2 / 60 /5 Hz / Sec/NA ℃...
  • Page 69 CONTROL SYSTEM 11.10.2 ODU Model Dependent Parameters Name Unit Name Unit YAZ218 YAZ218 MinFreqC °C OCTExitDeicer MinFreqCA Minute MaxDeicerTime MaxFreqCSingle Step EEVDecierOpenSingle MaxFreqCMulti Step EEVDecierOpenMulti MinFreqH DeicerCoef MinFreqHA °C EEV_Active_H_Isotherm MaxFreqHSingle °C EEV_Active_H_SC MaxFreqHMulti °C EEV_Active_H_SC_Crct °C HPAtMinFreqC EnableExceedCond °C HPAtMinFreqCA 2350 Watt...
  • Page 70 CONTROL SYSTEM Name Unit Name Unit YAZ218 YAZ218 102. -2.734 131. EEV_OL_Beta3_S_C EEV_OL_ Gamma _M3_C 103. 1.714 132. EEV_OL_ Gamma3 _S_C EEV_OL_Delta _M3_C 104. 133. EEV_OL_Delta3 _S_C EEV_OL_Alpha_M4_C 105. 134. EEV_OL_Alpha1_S_H EEV_OL_Beta_M4_C 106. 3.308 135. EEV_OL_Beta1_S_H EEV_OL_ Gamma _M4_C 107. 1.378 136.
  • Page 71 CONTROL SYSTEM 11.10.3 Indoor Units SW Parameters 11.10.3.1 General Parameters for All Models: Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode (ICT): ICTST Speed ICT to stop indoor fan ICTVLSpeed ICT to go down to very low speed ICTLSpeed ICT to start in very low speed ICTHSpeed...

  • Page 72: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING WARNING!!! When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH VOLTAGE!!! Never open the Outdoor unit before turning off the Power!!! When turned off, the system is still charged (400V)!!! It takes about 1 Min. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! For safe handling of the controller please refer to section 12.5 below.
  • Page 73 TROUBLESHOOTING SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION - Repair if needed PFC Chock coil Check the PFC Chock coil Check 20A fuse on the Filter Burnt fuse (12.4.2) EEV problem Check EEV (12.4.5) Check refrigeration system Refrigerant leakage (12.2) Compressor operates but one or Clean filters and/or remove more units generates no capacity Indoor coil block...
  • Page 74 TROUBLESHOOTING 12.3 Diagnostics 12.3.1 Fault Code for Outdoor unit The last fault occurred in the system will be stored in the EEPROM. If no fault exist in the system, no fault code will be displayed during normal operation mode. For single Split units only, when system enters diagnostics mode (through IDU communication), the last fault code will be displayed even if the system has recover from that fault.
  • Page 75 TROUBLESHOOTING 12.3.2 Outdoor unit diagnostics and corrective actions Fault Name Fault Description Corrective Action OCT bad CTT bad HST bad Thermistor not connected or Check Thermistor (12.4.6) OAT bad damaged OMT bad RGT bad RLT bad Reserved Reserved Reserved Compressor IPM Fault / PM module detect shoot-through Disconnect the compressor plug and IPM Driver Pin /...
  • Page 76 TROUBLESHOOTING Fault Name Fault Description Corrective Action Heat sink Over Heating Compressor stopped due to Check that the airflow around the heatsink protection ODU is free and the fan is running free. Check fan motor Deicing During deicing procedure No action required Compressor Over Compressor stopped due to over Check if gas is missing in the system...
  • Page 77 TROUBLESHOOTING 12.3.3 DMSMP diagnostics The DMSMP system has 4 IDU LEDs, 1 ODU LED, and 1 Power LED. Each communication channel is built up from receiving and transmitting channels. The outdoor controller is the master of communication (always initiated communication) while the DMSMP and indoor are slave (responds only when it receives).
  • Page 78 TROUBLESHOOTING 12.3.4 Fault Code for Indoor unit Pressing Mode button for long will activate diagnostic mode by the acknowledgment of 3 short beeps and lighting of COOL and HEAT LED’s. When Indoor diagnostics is displayed, all four LED’s (STBY, Operate, Filter, TMR) are on. Entering diagnostics in STBY mode allows only viewing of status (fault-display).
  • Page 79 TROUBLESHOOTING 12.3.5 Indoor unit diagnostics and corrective actions Probable Cause Corrective Action Fault Sensors not connected or Check sensor connections or Sensor failures damaged replace sensor Communication Indoor and Outdoor controllers Replace Indoor controller mismatch are with different versions Communication or grounding Check Indoor to Outdoor wiring No Communication wiring is not good...
  • Page 80 TROUBLESHOOTING 12.4.5 Checking the electrical expansion valve (EEV) The EEV has two parts, drive and valve. When Outdoor unit is powered on, EEV shall run and have click and vibration. For assuring the problem is of the EEV parts, perform the installation test. check (11.6) and if fails and no other indications in the diagnostics, than the problem is with the EEV (one or more).
  • Page 81 TROUBLESHOOTING 12.5 Precaution, Advise and Notice Items 12.5.1 High voltage in Outdoor unit controller Whole controller, including the wires, connected to the Outdoor unit controller may have the potential hazard voltage when power is on. Touching the Outdoor unit controller may cause an electrical shock.

  • Page 82: Exploded View And Spare Part List

    EXPLODED VIEW AND SPARE PART LIST EXPLODED VIEW AND SPARE PART LIST 13.1 Multi YAZ218 – Exploded View SM YAZ218 1-A.2 GB 13-1...
  • Page 83 461600095 4-Way valve assy./DCI YAZ218 4522509 4-Way valve coil 4518952 4-W valve SHF-7H for R410A 433228 Back Side Net 470660068 Condenser List/YAZ218 R410A 467550005R Choke/ DCR 50 Z 452813200 coil stopper 4519251 Axial Fan OD=400 4519300 Nut M5 L 4519614...

  • Page 84: Appendix A

    EXPLODED VIEW AND SPARE PART LIST 14. APPENDIX A INSTALLATION AND OPERATION MANUAL SM YAZ218 1-A.2 GB 14-1...

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