Related Manuals for Airwell VAR 9
Summary of Contents for Airwell VAR 9
- Page 1 VAR Series Unit Description Consol VAR 9 R410A REFRIGERANT COOLING ONLY R410A Heating (by an heating element) AUGUST – 2008 SM VAR 1-A.1 GB CONTENT...
- 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.
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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 & PRESSURE CURVES ..........5-1 SOUND LEVEL CHARACTERISTICS ..............6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS .....................8-1 REFRIGERATION DIAGRAMS ................9-1 10. TROUBLESHOOTING ..................10-1 11. -
Page 4: Main Features
INTRODUCTION INTRODUCTION General The new VAR consule unit is an ST (cooling only) and RH (Heating by electrical element) model. The new VAR consule is available as LED display types, featuring esthetic design, compact dimensions, and low noise operation. Main Features The VAR series benefits from the most advanced technological innovations, namely: •... -
Page 5: Product Data Sheet
PRODUCT DATA SHEET PRODUCT DATA SHEET Model: VAR 9 ST/RH Model (Indoor & Outdoor) Unit VAR 9 ST/RH Heating Characteristics Units Cooling (by heater) Btu/hr 8530 Capacity Power input 0.92 2x0.75 2.61 Energy efficiency class Power supply V/ Ph /Hz... -
Page 6: 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 Operating Limits Indoor Outdoor Upper limit C DB 23 C WB C DB Cooling Lower limit C DB 15... -
Page 7: Outline Dimensions
OUTLINE DIMENSIONS OUTLINE DIMENSIONS Model: VAR 9 ST/RH SM VAR 1-A.1 GB CONTENT... -
Page 8: Performance Data & Pressure Curves
PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA & PRESSURE CURVES Model: VAR 9 ST/RH 5.1.1 Cooling Capacity (kW) Cooling Mode 230V : Indoor Fan at High Speed. Entering Air WB/DB ID Coil( Entering Air DB Data OD Coil( 15/21 17/24... -
Page 9: Pressure Curves
PERFORMANCE DATA & PRESSURE CURVES Pressure Curves 5.2.1 Cooling Suction Pressure VS.Outdoor Temp 11.0 10.0 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 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 SM VAR 1-A.1 GB CONTENT... -
Page 10: Sound Level Characteristics
SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level A/C JKF 9 Room 1 Room 2 Middle of Filter Microphone 1.0M 1.12M 0.9M Sound Pressure Level Spectrum FAN SPEED LINE SM VAR 1-A.1 GB CONTENT... -
Page 11: Electrical Data
ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL Console 9 Power Supply 1PH-230V-50Hz Max Current, A Circuit Breaker,A Power Supply Wiring 3x1.5 (No. X Cross Section, mm *Interconnecting Cable RC Model (No. X Cross Section, mm *Interconnecting Cable ST Model (No. X Cross Section, mm *Already connected on factory as standard NOTE Power wiring cord should comply with local lows and electrical... -
Page 12: Wiring Diagrams
WIRING DIAGRAMS WIRING DIAGRAMS Model: VAR 9 ST/RH SM VAR 1-A.1 GB CONTENT... -
Page 13: Refrigeration Diagrams
REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS VAR 9 ST/RH Cooling Only Service port Sensor Capillary tube Evaporator Filter Condenser SM VAR 1-A.1 GB CONTENT... -
Page 14: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Check power supply. If power Power supply indicator supply is OK, check display (Red LED) does not light No power supply. and display wiring, if OK, replace PCB. 1. Switch to HIGH speed and check indoor FAN motor voltage to be higher then 198VAC, please also make... - Page 15 TROUBLESHOOTING All components are operating properly but no Refrigerant leak. Check refrigeration system. cooling. Check heaters power supply All components are if higher than 198 VAC. If OK Control problem or operating properly but no replace heaters, if heaters Heater problem. heating.
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Page 16: 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: x ST/RC group -Cooling only / cooling and heating by heat pump. x SH group -Cooling and heating by heat pump and supplementary heater. - Page 17 CONTROL SYSTEM 11.1.4 Main PCB Controller 11-2 SM VAR 1-A.1 GB CONTENT...
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Page 18: Control System
CONTROL SYSTEM :LEXAN 11.1.5 Display Board heat cool 18 20 22 24 26 28 30 H M L A mode reset 11.1.6 Display Board : Assembly 11.1.7 Legend : A) HEATING I) TEMPERATURE SET DECREASE Lights on during operation. Heating and filtration of the Each pressing decreases set temperature by º1C. - Page 19 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...
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Page 20: General Functions
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 (see para. 14.12.2). 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 21 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 22 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).
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Page 23: 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: x RAT in normal operation, or x RCT (R/C sensor) in I-FEEL mode. - Page 24 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 SM VAR 1-A.1 GB 11-9 CONTENT...
- Page 25 CONTROL SYSTEM Maintaining room temp at desired level by comparing RT and SPT with AUTO-IFAN. (RT - SPT) [ COMP (WVL) OFAN IFAN 11-10 SM VAR 1-A.1 GB CONTENT...
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Page 26: 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 27 CONTROL SYSTEM IFAN operation rules for RH group 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: For both RC and SH groups, Heaters versus T is as follows: T=SP-RT [ Operation rules for Heaters in RC group: a) Heaters can be enabled only if IFAN is ON.
- Page 28 CONTROL SYSTEM Heaters operation rules for RH groups: In RH group, HE operation is according to the difference between RAT and SPT. H E2 O FF H E1 O FF T=SP-R T [ OFAN Operation for RC and SH groups As a general rule for RC and SH groups, excluding protection modes, OFAN starts with the compressor.
- Page 29 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 30 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 31 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 32 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 33 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 34 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 >...
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Page 35: Dry Mode
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 36 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 37 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 38 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 39 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 40 CONTROL SYSTEM 11.12.2 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. 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 41 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 Note 3 IFAN HEs are forced OFF OPER BLINK NOTES...
- Page 42 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 43 CONTROL SYSTEM 11.12.3 Condensation Pump (ECC/K model) 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...
- Page 44 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 45 CONTROL SYSTEM 11.14 SPT Adjustment in Sleep Mode x In COOL, AUTO COOL or DRY modes, the SPT adjustment is positive (from 0 to +3 x In HEAT or AUTO HEAT modes, the SPT adjustment is negative (from 0 to -3 x In other modes, there is no SPT adjustment.
- Page 46 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 47 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 48 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 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 49 CONTROL SYSTEM STEP 3: AUTO LED WALK TEST. All the LEDS will turn OFF. All the LEDS will turn ON for 1 second one by one in the following sequence: STAND-BY Ö OPERATE Ö TIMER Ö FILTER Ö COOL Ö HEAT. In PRX all the LEDS will turn ON for 1 second one by one in the following sequence : 18 °c Ö...
- Page 50 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 51 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.
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Page 52: Exploded Views And Spare Parts Lists
EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 12.1 Model: VAR 9 ST/RH SM VAR 1-A.1 GB 12-1 CONTENT... - Page 53 EXPLODED VIEWS AND SPARE PARTS LISTS 12.2 Model: VAR 9 ST/RH (page 2) 12-2 SM VAR 1-A.1 GB CONTENT...
- Page 54 EXPLODED VIEWS AND SPARE PARTS LISTS 12.3 Model: VAR 9 ST/RH Item Code Item Desc Quantity 413060 Enclosure assy VAR 413084 Side panel L insulated VAR 413052 AIR FILTER EL10 VAR 413039 Display assy VAR 234213 DISPLAY BOX PXD RoHS...
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Page 55: Appendix A
APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION AND OPERATION MANUAL VAR 9 ST/RH SM VAR 1-A.1 GB 13-1 CONTENT...