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Airwell GC 30 DCI - User Manual

Airwell GC 30 DCI
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SX DCI Series
Indoor Units Outdoor Units
SX 9 DCI GC 9 DCI
SX 12 DCI GC 12 DCI
SX 18 DCI GC 18 DCI
SX 24 DCI GC 24 DCI
SX 30 DCI GC 30 DCI
AUGUST – 2008
REFRIGERANT
R410A
HEAT PUMP
SM SX DCI 1-A.3 GB
CONTENT

Table of Contents

Questions and Answers

  • J
    John LeonSep 18, 2025
    Why is the indoor fan of my Airwell GC 30 DCI not starting?
    • S
      Sara CurtisSep 18, 2025
      If the indoor fan of your Airwell Heat Pump doesn't start, but the louvers are open and the green LED is lit, there could be a few reasons: * If the unit is in heat mode, the coil might not be warm yet. Try changing to cool mode to test. * There might be a problem with the PCB or capacitor. Switch to high speed and check if the power supply to the motor is higher than 130VAC (for triack controlled motor) or higher than 220VAC for fixed speed motors. If it is, replace the capacitor. If not, replace the controller.
  • D
    Donald JohnsonAug 25, 2025
    Why is my Airwell Heat Pump blowing air but not cooling or heating?
    • E
      esullivanAug 25, 2025
      If your Airwell Heat Pump's indoor and outdoor fans are working, but there's no cooling or heating, the overload safety device on the compressor may have cut out because of low voltage or high temperature. Also, the compressor run capacitor may be faulty, or the compressor windings may be shorted. Try switching off the power and trying again after one hour, and check for proper voltage. If the problem persists, consider replacing the compressor capacitor or the compressor.
  • A
    Anna HodgesAug 25, 2025
    Why is there only a limited air supply from my Airwell Heat Pump?
    • J
      Jamie CoxAug 26, 2025
      A limited air supply from your Airwell Heat Pump, especially if accompanied by a whistling noise and ice formation on the indoor unit coil in cooling mode, suggests a lack of refrigerant. You should charge the unit after localizing the leak.
  • J
    Jacqueline ReedAug 26, 2025
    What to do if my Airwell GC 30 DCI doesn't respond to the remote control?
    • L
      Logan MillsAug 27, 2025
      If your Airwell Heat Pump isn't responding to the remote, first check the remote control batteries. If the batteries are OK, inspect the display and display wiring. If these are okay, replace the display PCB. If the problem remains, replace the controller.
  • C
    Christopher RossSep 22, 2025
    What to do if Airwell GC 30 DCI responds to remote but the Green LED doesn't light up?
    • A
      agarzaSep 22, 2025
      If your Airwell Heat Pump responds to the remote control message but the Operate indicator (Green LED) doesn't light up, there may be a problem with the display PCB. Replace the display PCB. If the issue persists, replace the controller.
  • K
    kenneth39Sep 23, 2025
    How to fix a power supply indicator (Red LED) that does not light up on my Airwell GC 30 DCI?
    • T
      Tyler JohnsonSep 23, 2025
      If the power supply indicator (Red LED) on your Airwell Heat Pump doesn't light up, it indicates there's no power supply. Check the power supply. If the power supply is OK, check the display and display wiring. If those are OK, replace the controller.
  • R
    Robert GriffithSep 9, 2025
    What should I do if the red LED power indicator on my Airwell GC 30 DCI doesn't light up?
    • M
      myoungSep 9, 2025
      If the red LED power indicator doesn't light up, check the power supply. If the power supply is OK, check the display and display wiring. If those are OK, replace the controller.
  • B
    Briana KeithSep 12, 2025
    What to do if the compressor is running but the outdoor fan isn't working on my Airwell GC 30 DCI?
    • M
      Michael JacksonSep 12, 2025
      If the compressor is running but the outdoor fan isn't working, there could be a problem with the outdoor electronics or the outdoor fan itself. Check the outdoor fan motor according to the procedure in section 13.5.3 below, if not OK replace controller.
  • S
    Stephanie MillerSep 3, 2025
    Why is my Airwell Heat Pump operating in the wrong mode?
    • L
      laura58Sep 3, 2025
      If your Airwell Heat Pump is working in the wrong mode (cooling instead of heating, or vice versa), it could be due to electronics or a power connection issue to the RV. Check the RV power connections. If these are OK, check the RV operation with a direct 230VAC power supply. If that’s OK, replace the outdoor controller.
  • S
    Sara ZhangSep 1, 2025
    Why is only the indoor fan working on my Airwell GC 30 DCI?
    • A
      Austin LongSep 1, 2025
      If only the indoor fan is working on your Airwell Heat Pump, the run capacitor of the outdoor fan motor may be faulty, or the windings of the outdoor fan might be shorted. Replace the capacitor or replace the motor.

Summary

INTRODUCTION

General

Overview of the SX split ceiling mounted range, including heat pump models.

Main Features

Highlights key technological innovations and benefits of the SX series.

Indoor Unit

Describes the features and mounting options of the indoor unit.

Filtration

Details the filtration system, including accessible pre-filters.

Control

Details the microprocessor indoor controller and infrared remote control.

Outdoor Unit

Describes the installation and features of the outdoor unit.

Tubing Connections

Information on flare type interconnecting tubing.

Accessories

Details the RCW Wall Mounted Remove Control.

Inbox Documentation

Mentions installation and operation manuals supplied with the unit.

Matching Table

Lists outdoor units and SX DCI indoor units that can be matched together.

PRODUCT DATA SHEET

SX 9 DCI R410 A

Provides detailed technical specifications for the SX 9 DCI model.

SX 12 DCI R410 A

Provides detailed technical specifications for the SX 12 DCI model.

SX 18 DCI R410 A

Provides detailed technical specifications for the SX 18 DCI model.

SX 24 DCI R410 A

Provides detailed technical specifications for the SX 24 DCI model.

SX 30 DCI R410 A

Provides detailed technical specifications for the SX 30 DCI model.

RATING CONDITIONS

Operating Limits

Details operating limits for Cooling, Heating, and Voltage.

OUTLINE DIMENSIONS

Indoor Unit: SX 9, 12 DCI

Shows dimensions and diagrams for SX 9 and 12 DCI indoor units.

Indoor Unit: SX 18, 24, 30 DCI

Shows dimensions and diagrams for SX 18, 24, and 30 DCI indoor units.

Outdoor Unit: GC 9, 12, 18 DCI

Shows dimensions and diagrams for GC 9, 12, and 18 DCI outdoor units.

Outdoor Unit: GC 24, 30 DCI

Shows dimensions and diagrams for GC 24 and 30 DCI outdoor units.

PERFORMANCE DATA & PRESSURE CURVES

PERFORMANCE DATA

Provides performance data for the SX 9 DCI model.

Capacity Correction Factors

Shows a graph for cooling capacity correction factors vs. outdoor temperature.

Heating Capacity (kW) - Run Mode

Details heating capacity data for SX 9 DCI.

Capacity Correction Factors

Shows a graph for heating capacity correction factors vs. outdoor temperature.

Suction Pressure Vs.Outdoor Temp.

Graph showing suction pressure vs. outdoor temperature for SX 9 DCI cooling.

Discharge Pressure Vs. Outdoor Temp.

Graph showing discharge pressure vs. outdoor temperature for SX 9 DCI cooling.

Suction Pressure Vs.Outdoor Temp.

Graph showing suction pressure vs. outdoor WB temperature for SX 9 DCI heating.

Discharge Pressure Vs. Outdoor Temp.

Graph showing discharge pressure vs. outdoor WB temperature for SX 9 DCI heating.

Cooling Capacity (kW) - Run Mode

Details cooling capacity data for SX 12 DCI.

Capacity Correction Factor

Shows a graph for cooling capacity correction factors vs. outdoor temperature.

Heating Capacity (kW) - Run Mode

Details heating capacity data for SX 12 DCI.

Capacity Correction Factors

Shows a graph for heating capacity correction factors vs. outdoor temperature.

Suction Pressure VS.Outdoor Temp.

Graph showing suction pressure vs. outdoor temperature for SX 12 DCI cooling.

Discharge Pressure VS. Outdoor Temp.

Graph showing discharge pressure vs. outdoor temperature for SX 12 DCI cooling.

Suction Pressure Vs.Outdoor Temp.

Graph showing suction pressure vs. outdoor WB temperature for SX 12 DCI heating.

Discharge Pressure Vs. Outdoor Temp.

Graph showing discharge pressure vs. outdoor WB temperature for SX 12 DCI heating.

Capacity Correction Factor Due to Tubing Length

Shows cooling and heating capacity correction factors based on tubing length.

Cooling Capacity (kW) - Run Mode

Details cooling capacity data for SX 18 DCI.

Capacity Correction Factors

Shows a graph for cooling capacity correction factors vs. outdoor temperature.

Heating Capacity (kW) - Run Mode

Details heating capacity data for SX 18 DCI.

Capacity Correction Factors

Shows a graph for heating capacity correction factors vs. outdoor temperature.

Suction Pressure Vs.Outdoor Temp.

Graph showing suction pressure vs. outdoor temperature for SX 18 DCI cooling.

Discharge Pressure VS. Outdoor Temp.

Graph showing discharge pressure vs. outdoor temperature for SX 18 DCI cooling.

Suction Pressure Vs.Outdoor Temp.

Graph showing suction pressure vs. outdoor WB temperature for SX 18 DCI heating.

Discharge Pressure Vs. Outdoor Temp.

Graph showing discharge pressure vs. outdoor WB temperature for SX 18 DCI heating.

Capacity Correction Factor Due to Tubing Length

Shows cooling and heating capacity correction factors based on tubing length.

Cooling Capacity (kW) - Run Mode

Details cooling capacity data for SX 24 DCI.

Capacity Correction Factors

Shows a graph for cooling capacity correction factors vs. outdoor temperature.

Heating Capacity (kW) - Run Mode

Details heating capacity data for SX 24 DCI.

Capacity Correction Factors

Shows a graph for heating capacity correction factors vs. outdoor temperature.

Suction Pressure Vs. Outdoor Temp.

Graph showing suction pressure vs. outdoor temperature for SX 24 DCI cooling.

Discharge Pressure Vs. Temp.

Graph showing discharge pressure vs. outdoor temperature for SX 24 DCI cooling.

Suction Pressure Vs. Outdoor Temp.

Graph showing suction pressure vs. outdoor WB temperature for SX 24 DCI heating.

Discharge Pressure Vs. Outdoor Temp.

Graph showing discharge pressure vs. outdoor WB temperature for SX 24 DCI heating.

Capacity Correction Factor Due to Tubing Length

Shows cooling and heating capacity correction factors based on tubing length.

Cooling Capacity (kW) - Run Mode

Details cooling capacity data for SX 30 DCI.

Capacity Correction Factors

Shows a graph for cooling capacity correction factors vs. outdoor temperature.

Heating Capacity (kW) - Run Mode

Details heating capacity data for SX 30 DCI.

Capacity Correction Factors

Shows a graph for heating capacity correction factors vs. outdoor temperature.

Suction Pressure Vs. Outdoor Temp.

Graph showing suction pressure vs. outdoor temperature for SX 30 DCI cooling.

Discharge Pressure Vs.Outdoor Temp.

Graph showing discharge pressure vs. outdoor temperature for SX 30 DCI cooling.

Suction Pressure Vs.Outdoor Temp.

Graph showing suction pressure vs. outdoor WB temperature for SX 30 DCI heating.

Discharge Pressure Vs. Outdoor Temp.

Graph showing discharge pressure vs. outdoor WB temperature for SX 30 DCI heating.

Capacity Correction Factor Due to Tubing Length

Shows cooling and heating capacity correction factors based on tubing length.

SOUND LEVEL CHARACTERISTICS

Sound Pressure Level

Explains how sound pressure level is measured.

Sound Pressure Level Spectrum (Measured as Figure 1)

Presents sound pressure level spectrum data for SX 9 and SX 12.

Sound Pressure Level Spectrum (Measured as Figure 1)

Presents sound pressure level spectrum data for SX 18, SX 24, and SX 30.

Sound Pressure Level Spectrum (Measured as Figure 2)

Presents sound pressure level spectrum data for GC 9 and GC 12 outdoor units.

Sound Pressure Level Spectrum (Measured as Figure 2)

Presents sound pressure level spectrum data for GC 18 and GC 24 outdoor units.

Sound Pressure Level Spectrum (Measured as Figure 2)

Presents sound pressure level spectrum data for GC 30 DCI outdoor units.

ELECTRICAL DATA

Single Phase Units

Provides electrical data for single-phase SX DCI units.

WIRING DIAGRAMS

SX 9, 12, 18 DCI; GC 9, 12, 18 DCI

Wiring diagram for SX 9, 12, 18 DCI indoor and GC 9, 12, 18 DCI outdoor units.

Indoor Unit: SX 24, 30 DCI

Wiring diagram for SX 24 and 30 DCI indoor units.

Outdoor Unit: GC 24, 30 DCI

Wiring diagram for GC 24 and 30 DCI outdoor units.

REFRIGERATION DIAGRAMS

SX 9, 12, 18, 24, 30 DCI

Refrigeration diagrams for cooling and heating modes.

TUBING CONNECTIONS

Outdoor Unit & Indoor Unit

Details tubing connections, torque values, and oil trap requirements.

TROUBLESHOOTING

General DCI Single Split System failures and Corrective Actions

Lists common symptoms, causes, and corrective actions for system failures.

Checking the refrigeration system

Procedure for checking system pressures and thermodynamic measures.

Judgment by Indoor;Outdoor Unit Diagnostics

How to enter and interpret diagnostic modes.

Indoor Unit Diagnostics

Details indoor unit diagnostic codes and alarm outputs.

Indoor Unit Diagnostics and Corrective Actions

Provides corrective actions for specific indoor unit diagnostic faults.

Outdoor Unit Diagnostics

Defines outdoor unit alarm outputs.

Component Checks

Procedures for checking compressor, reverse valve, and EEV.

Safety Precautions

Warnings about high voltage and charged capacitors.

General Advises

General advises for handling unit components and safety.

CONTROL SYSTEM

General Functions and Operating Rules

Explains the DCI software and parameter display.

System Operation Concept

Describes the master-slave communication between indoor and outdoor units.

Compressor Frequency Control

Details NLOAD setting and its relation to compressor frequency.

Target Frequency Setting for DCI 72;80

Formula for calculating compressor target speed.

Frequency Changes Control

Describes the compressor frequency change rate.

Compressor Starting Control

Details compressor starting control for DCI50/60/72Zzz.

Compressor starting control for DCI72;80

Explains compressor starting speed control for DCI72/80 models.

Minimum On and Off Time

Specifies minimum on and off times for the compressor.

Indoor Fan Control

Details indoor fan speeds and operation modes.

Turbo Speed

Describes the activation conditions for turbo speed.

Outdoor Fan Control

Details outdoor fan control routines and conditions.

Outdoor Fan Control for GC 24, 30 DCI

Outlines outdoor fan control for GC 24, 30 DCI models.

EEV (Electronic Expansion Vavle) Control

Explains EEV control logic for GC 9, 12, 18 DCI.

EEV Control for DC172;72 Z;80

Details EEV control for DC172/72Z/80 models.

RV(Reversing Valve) Control

Explains reversing valve control logic.

Ioniser Control

Describes conditions for ionizer operation.

Base Heater Control

Explains base heater operation based on OAT.

Cool Mode

Describes NLOAD calculation and fan speed adjustment in cool mode.

Heat Mode

Describes NLOAD calculation and fan speed adjustment in heat mode.

Temperature Compensation

Explains temperature compensation for specific models.

Indoor Fan Control in Heating Mode

Details indoor fan speed control based on coil temperature.

Protections

Lists the 5 protection codes and their meanings.

Indoor Coil Defrost Protection

Details indoor coil defrost protection logic.

Indoor Coil Overheating Protection

Details indoor coil overheating protection logic.

Indoor Coil Overheating Protection For 72;80

Details indoor coil overheating protection for 72/80 models.

Compressor Overheating Protection

Describes compressor overheating protection zones.

Compressor Overheating Protection for DCI72;80

Details compressor overheating protection for DCI72/80 models.

Compressor Over Current Protection Only For DCI50;60;72 Z

Explains compressor over current protection.

Heat Sink Overheating Protection

Details heat sink overheating protection logic.

Heat Sink Overheating Protection For DCI72;80

Details heat sink overheating protection for DCI72/80 models.

System Over Power Protection Only For DCI72;80

Explains system over power protection.

Outdoor Coil Deicing Protection

Details outdoor coil deicing protection conditions.

Outdoor coil Deicing Protection For DCI50;60;72 Z

Details outdoor coil deicing protection for DCI50/60/72Z.

Entering Deicing Conditions

Lists conditions that trigger deicing operation.

Condensate Water Over Flow Protection

Describes condensate water over flow protection settings.

Indoor Unit Dry Contact

Explains the functions of the indoor unit dry contact.

Operating the Unit from Mode Button

Describes forced operation using the mode button.

Indoor Unit controller Controls and Indicatiors for All Models

Details controls and indicators on the indoor unit.

Outdoor Unit controller Indicatiors

Describes the LED indicators on the outdoor unit controller.

Test Mode

Explains how to enter and operate in test mode.

SW Parameters

Introduces software parameters for indoor units.

Outdoor Units SW Parameters

Lists model dependent parameters for DCI50/60.

Model dependent parameters - SX

Lists model dependent parameters for SX models.

Model dependent parameters for DCI50;60

Detailed SW parameters for DCI50/60 models.

Model dependent parameters for DCI72 Z

Detailed SW parameters for DCI72Z models.

Model dependent parameters for DCI72;80

Detailed SW parameters for DCI72/80 models.

EXPLODED VIEWS AND SPARE PARTS LISTS

Indoor Unit: SX 9, 12 DCI

Exploded view of the SX 9, 12 DCI indoor unit.

Indoor Unit: SX 9, 12 DCI

Spare parts list for the SX 9, 12 DCI indoor unit.

Indoor Unit: SX 18, 24, 30 DCI

Exploded view of the SX 18, 24, 30 DCI indoor unit.

Indoor Unit: SX 18 DCI

Spare parts list for the SX 18 DCI indoor unit.

Indoor Unit: SX 24, 30 DCI

Spare parts list for the SX 24, 30 DCI indoor unit.

Outdoor Unit: GC 9, 12 DCI

Exploded view of the GC 9, 12 DCI outdoor unit.

Outdoor Unit: GC 9, 12 DCI

Spare parts list for the GC 9, 12 DCI outdoor unit.

Outdoor Unit: GC 18 DCI

Exploded view of the GC 18 DCI outdoor unit.

Outdoor Unit: GC 18 DCI

Spare parts list for the GC 18 DCI outdoor unit.

Outdoor Unit: GC 24, 30 DCI

Exploded view of the GC 24, 30 DCI outdoor unit.

Outdoor Unit: GC 24, 30 DCI

Spare parts list for the GC 24, 30 DCI outdoor unit.

APPENDIX A

INSTALLATION AND OPERATION MANUAL

References to the Installation and Operation Manuals.

Airwell GC 30 DCI Specifications

General IconGeneral
BrandAirwell
ModelGC 30 DCI
CategoryHeat Pump
LanguageEnglish

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