Airwell SX 12 DC INV User Manual

Multi Split DUO DCI
REFRIGERANT
R410A
HEAT PUMP
TM DUODCI-A-1-GB JUNE 2005
Indoor Units Outdoor Units
FLO 9 DC INV
DUO 50 DCI
FLO 12 DC INV
SX 9 DC INV
SX 12 DC INV
BS 12 DC INV
K
9 DC INV
K
12 DC INV
Technical Manual

Airwell SX 12 DC INV Specifications

General

Cooling Capacity	3.5 kW
SEER	6.1
SCOP	4.0
Energy Efficiency Class	A++
Noise Level (Outdoor)	49 dB

Summary

2. PRODUCT DATA SHEET

2.1 Outdoor Unit Specifications

2.2 Indoor Units Data

2.2.3 K 9 DCI Specifications

Technical specifications for the K 9 DCI indoor unit.

2.2.5 SX 9 DCI Specifications

Technical specifications for the SX 9 DCI indoor unit.

2.2.7 BS 12 DCI Specifications

Technical specifications for the BS 12 DCI indoor unit.

2.2.4 K 12 DCI Specifications

Technical specifications for the K 12 DCI indoor unit.

2.2.6 SX 12 DCI Specifications

Technical specifications for the SX 12 DCI indoor unit.

5. PERFORMANCE DATA

5.1 FLO 9 DCI Performance

Cooling and heating capacity data, and correction factors for FLO 9 DCI.

5.2 FLO 12 DCI Performance

Cooling and heating capacity data, and correction factors for FLO 12 DCI.

5.3 K 9 DCI Performance

Cooling and heating capacity data, and correction factors for K 9 DCI.

5.4 K 12 DCI Performance

5.5 SX 9 DCI Performance

5.6 SX 12 DCI Performance

5.7 BS 12 DCI Performance

5.8 Tubing Length Correction Factors

8. WIRING DIAGRAMS

8.1 DUO 50 DCI Wiring Diagram

9. REFRIGERATION DIAGRAMS

9.1 Cooling Mode Diagram

9.1 Heating Mode Diagram

11. CONTROL SYSTEM

11.3.2 Target Frequency Setting

11.4 Indoor Fan Control

11.7 EEV Control

11.14 Heat Mode

11.16 Dry Mode

11.17.3 Compressor Overheating Protection

Control zones for compressor temperature protection.

11.17.5 Heat Sink Over Heating Protection

Protection against overheating of the heat sink.

11.17.6 Deicing Protection Procedure

Describes the step-by-step procedure for deicing protection.

11.17.7 Condensate Water Overflow Protection

Logic for condensate water overflow detection and handling.

11.18 Indoor Unit Dry Contact

11.20.2 LCD Display Controls and Indicators

11.21 Jumper Settings

11.21.2 Outdoor Unit Controller Settings

11.23 Dual Split System Operations

11.23.6 Indoor Unit Mode Differences

11.25 SW Parameters

Software parameters related to indoor unit fan speed and compressor frequency.

11.25.2 Outdoor Units SW Parameters

Software parameters for outdoor units, including compressor limits and fan speed.

11.3.4 Compressor Starting Control

11.5 Heating Element Control

11.8 Reversing Valve Control

11.15 Auto Cool/Heat Mode

11.17 Protections

Overview of system protections and fault codes.

11.17.4 Compressor Over Current Protection

Protection against over current for the compressor.

11.17.6 Outdoor Coil Deicing Protection

Conditions and procedures for outdoor coil deicing.

11.20.3 Outdoor Unit Controller Indicators

11.22 Test Mode Operations

11.24 Dry Contacts Control

11.3 Compressor Frequency Control

Details on NLOAD setting and compressor frequency management.

11.6 Outdoor Fan Control

11.11 Base Heater Control

11.20 Indoor Unit Controls and Indicators

11.13 Cool Mode

12. TROUBLESHOOTING

1.1 Dual Split System Failures

Lists common failures in dual split systems and their corrective actions.

1.2 Refrigeration System Checks

1.3.2 Outdoor Unit Diagnosis

Corrective actions for outdoor unit faults identified by MSMP.

1.3.3 MSMP Fault Code for Indoor Unit

MSMP fault codes and troubleshooting for indoor units.

1.3.4 Indoor Unit Diagnosis

Corrective actions for indoor unit faults identified by MSMP.

1.3 MSMP Diagnostics

Information on judging system status using MSMP diagnostics and fault codes.

1.4 MegaTool Diagnostics

1.5 Main Parts Checks

1.6 Safety Precautions

Important safety warnings regarding high voltage and capacitor discharge.