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Heat Controller MSS-024B/A User Manual

Heat Controller MSS-024B/A
86 pages
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"
HEAT
CONTROLLER,
INC.
'k
Ae'
ENERGY
KNIGHT.
,(Piý4
Wall
Mounted
Mini-Split
System
Air
Conditioning/Heat
Pump
.Siervice
iýanua/
0
Model:
MSS-009B/A
MSS-012B/A,
MSH-01
2B/A
MSS-018B/A,
MSH-0186/A
MSS-024B/A,
MSH-024B/A
CAUTION
Before
servicing
the
unit,
read
the
"safety
precautions"
in
this
manual.
Only
for
authorized
service
personnel.
0
HCI-MSSM-98

Table of Contents

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Heat Controller MSS-024B/A Specifications

General IconGeneral
BrandHeat Controller
ModelMSS-024B/A
CategoryAir Conditioner
LanguageEnglish

Summary

Unit Functions

Remote Controller Operation

Describes how to turn the unit on/off using the remote.

Temperature Sensing and Control

Details room temperature sensing and control mechanisms.

Safety Controls

Explains safety delays for fan, compressor, and reversing valve.

Fan Speed and Airflow Control

Covers indoor fan speed options and airflow direction settings.

Special Operation Modes

Details Soft Dry, Sleep Mode, Auto Air, Defrost, and Hot-Start controls.

Remote Controller Operations

Basic Controls

Covers ON/OFF, Mode Selection, and Fan Speed settings.

Timer and Sleep Functions

Details setting and canceling timers and activating sleep mode.

Advanced Control Options

Covers airflow direction, fan operation, and reset functions.

Product Specifications

Dimensions

Indoor Unit Dimensions

Provides dimensional details for the indoor unit.

Outdoor Unit Dimensions

Provides dimensional details for the outdoor unit.

Refrigeration Cycle Diagrams

Cooling Only Models Cycle

Illustrates the refrigeration cycle for cooling-only units.

Cooling & Heating Models Cycle

Illustrates the refrigeration cycle for cooling and heating units.

Wiring Diagrams

Indoor Unit Wiring

Shows wiring diagrams for indoor units.

Outdoor Unit Wiring

Shows wiring diagrams for outdoor units (Cooling Only & Heating).

Operation Details

Time Delay Safety Control

Explains safety delays for compressor, fan, and reversing valve.

Airflow Direction Control

Details how to set the vertical louver position or swing.

Cooling Operation Mode

Describes operation during cooling mode based on intake air temp.

Auto Operation Mode

Explains automatic operation based on room and intake air conditions.

Soft Dry Operation Mode

Details the operation and temperature settings for Soft Dry mode.

Heating Operation Mode

Describes how the unit operates in heating mode.

Defrost Control

Explains how defrost operation is controlled by timer and temperature.

Sleep Mode Auto Control

Describes operation during Sleep Mode in Cooling or Heating.

Forced Operation and Heater Control

Covers forced operation and crank case heater control.

Test Mode Operations

Indoor Unit Test Mode

Details test operations for the indoor unit.

Outdoor Unit Test Mode

Details test operations for the outdoor unit.

Display and Self-Diagnosis

Display Function Indicators

Explains indicators and sounds for operation status.

Self-diagnosis Function

Describes error codes and corresponding unit operations.

Installation

Safety and Precautions

Covers warnings, safety precautions, and handling guidelines.

Unit Location and Parts

Lists installation parts, selects locations, and covers piping length/elevation.

Indoor Unit Installation

Details mounting, drilling, piping prep, connection, and insulation for the indoor unit.

Outdoor Unit Connections and Wiring

Covers connecting outdoor unit pipings, electrical cables, and wiring details.

System Checks and Refrigerant Handling

Covers drainage checks, cable connections, air purging, evacuation, and performance evaluation.

Remote Controller Functions

Cooling Model Remote Functions

Explains the name and function of each button for cooling mode.

Heating Model Remote Functions

Explains the name and function of each button for heating mode.

Indoor Unit Disassembly

Disassembly for 9k, 12k Models

Details steps for disassembling 9k, 12k indoor units.

Disassembly for 18k, 24k Models

Details steps for disassembling 18k, 24k indoor units.

Troubleshooting

Refrigeration Cycle Analysis

Analyzes operational issues based on temp difference and current.

General Operation Failures

Diagnoses issues like unit not operating or remote control problems.

Component Specific Malfunctions

Troubleshoots compressor, fan, and louver operation issues.

Communication and Wiring Errors

Addresses communication errors and connection issues.

Connector Voltage Specifications

Electronic Control Device Details

Main PWB Assembly (Indoor Unit)

Details the main PWB assembly for indoor units and optional functions.

Main PWB Assembly (Outdoor Unit)

Details the main PWB assembly for outdoor units and optional functions.

Display PWB Assembly

Shows the display PWB assembly for different models.

Schematic Diagrams

Indoor Part Schematic

Provides the schematic diagram for the indoor unit.

Outdoor Part Schematic

Provides the schematic diagram for the outdoor unit.

Parts Lists and Exploded Views

Indoor Unit Parts and Views (9k, 12k)

Shows exploded view and lists parts for 9k, 12k indoor units.

Indoor Unit Parts and Views (18k, 24k)

Shows exploded view and lists parts for 18k, 24k indoor units.

Outdoor Unit Parts and Views (9k, 12k)

Shows exploded view and lists parts for 9k, 12k outdoor units.

Outdoor Unit Parts and Views (18k)

Shows exploded view and lists parts for 18k outdoor units.

Outdoor Unit Parts and Views (24k)

Shows exploded view and lists parts for 24k outdoor units.

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