Sanyo CH2432, XHS3632, CH3632, XHS2432 User Manual 2

SERVICE MANUAL

XHS2432 / CH2432 XHS3632 / CH3632

SPLIT SYSTEM AIR CONDITIONER

FILE NO.

Section

INDOOR MODEL No. PRODUCT CODE No. OUTDOOR MODEL No. PRODUCT CODE No.

XHS2432 854 013 40 CH2432 854 013 42 XHS3632 854 015 45 CH3632 854 014 57

Indoor Unit Outdoor Unit

XHS2432 CH2432

XHS3632 CH3632

85464849176000 REFERENCE NO. SM830076

Important

Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

For safe installation and trouble-free operation, you must :

ⓦ Carefully read this instruction booklet before beginning. ⓦ Follow each installation or repair step exactly as shown. ⓦ Observe all local, state, and national electrical codes. ⓦ Pay close attention to all warning and caution notices

given in this manual.

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

This symbol refers to a hazard or

CAUTION

unsafe practice which can result in personal injury or product or property damage.

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

When Wiring

……………………………………………………………………

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

• Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death.

• Ground the unit following local electrical codes.

• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

When Transporting

…………………………………………………………………… Be careful when picking up and moving the indoor and outdoor

units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.

When Installing

……………………………………………………………………

…In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause dripping and water damage to walls and floors.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

…In an area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

…In a Snowy Area (for Heat Pump-type Sys-tems)

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

……………………………………………………………………

• Ventilate the room well, in the event that refrigerant gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas.

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

NOTE

Depending on the system type, liquid and gas lines may be either narrow or wide. Therefore, to avoid confusion the refrigerant tubing for your particular model is specified as either “narrow” or “wide” rather than as “liquid” or “gas”.

When Servicing

……………………………………………………………………

• Turn the power OFF at the main power box (mains) before opening the unit to check or repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.

• Clean up the site when installation is finished. Check that no metal scraps or bits of wiring have been left inside the unit.

CAUTION

• Ventilate any enclosed areas when installing or testing the refrigeration system. Contact of refrigerant gas with fire or heat can produce poisonous gas.

• Confirm after installation that no refrigerant gas is leaking. If the gas comes in contact with a burning stove, gas water heater, electric room heater or other heat source, it can cause the generation of poisonous gas.

– 2 –

SM830076

WHO SHOULD USE THIS MANUAL

This service manual is made to assist the service technician apply his knowledge and training to this model air conditioner. This manual is written both for experienced service persons and those who are new to air conditioning service. To help those with less experience or who are new to this kind of unit we have included more explanations of basic procedures in simple language than is usual in some service manuals. The experienced technician will of course find he knows many of these things already and can go directly to the procedures and information he needs; the less experienced technician will better understand what to do even before he arrives on the job, and therefore be better able to work by himself as well as assist the more experienced technician.

TABLE OF CONTENTS

1. SPECIFICATIONS.........................................................................................................6

1-1 Unit Specifications ................................................................................................7

1-2 Major Component Specifications ........................................................................11

(A)Indoor Unit .....................................................................................................11

(B)Outdoor Unit ..................................................................................................13

1-3 Other Component Specifications ........................................................................15

(A)Indoor Unit .....................................................................................................15

(B)Outdoor Unit ..................................................................................................17

1-4 Dimensional Data................................................................................................19

(A)Indoor Unit .....................................................................................................19

(B)Outdoor Unit ..................................................................................................21

1-5 Refrigerant Flow Diagram ...................................................................................23

1-6 Operating Range.................................................................................................23

2. PROCESSES AND FUNCTIONS ................................................................................25

2-1 Room Temperature Control ................................................................................26

(A)Cooling ..........................................................................................................26

(B)Heating ..........................................................................................................27

2-2 Cold Draft Prevention (Heating Cycle) ................................................................28

2-3 Automatic Fan Speed (Indoor Unit).....................................................................29

(A)Cooling ..........................................................................................................29

(B)Heating ..........................................................................................................29

2-4 Outdoor Fan Speed Control................................................................................30

(A)Cooling ..........................................................................................................30

(B)Heating ..........................................................................................................30

2-5 Freeze Prevention (Cooling) ...............................................................................31

2-6 Condensing Temperature Control (Cooling) ...................................................... 32

2-7 Overload Protection (Heating).............................................................................33

2-8 Discharge Temperature Control (Cooling and Heating)..................................... 34

– 3 –

SM830076

2-9 Auto. Mode for Automatic Heating/Cooling Switching........................................ 35

2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating).............................. 37

2-11 4-Way Valve, Solenoid Control ...........................................................................38

(A)Normal Control Mode ....................................................................................38

(B)AUTO Control Mode ......................................................................................39

2-12 Automatic Restart after Power Interruption ........................................................ 39

2-13 Electronic Expansion Valve ................................................................................40

2-14 Compressor Discharge Gas Temperature ......................................................... 40

(A)Cooling ..........................................................................................................40

(B)Heating (Except During Defrosting)...............................................................40

2-15 Compressor Current Detection Circuit ................................................................41

2-16 Electronic Expansion Valve Control ....................................................................42

2-17 Voltage Detection Control ...................................................................................43

3. ELECTRICAL DATA....................................................................................................45

3-1 Indoor Unit (Electric Wiring Diagram, Schematic Diagram) ............................... 46

3-2 Outdoor Unit (Electric Wiring Diagram, Schematic Diagram)............................. 48

4. SERVICE PROCEDURES ...........................................................................................53

4-1 Troubleshooting ..................................................................................................54

4-2 Checking the Electrical Components ..................................................................87

– 4 –

SM830076

Introduction:

Read Me First!

This manual will help you understand and service the air conditioner. To help you find the information you need, we have divided it into 5 main sections. Each section is divided into chapters with charts, tables and explanations to help you find and repair problems.

❑ Section 1: Specifications, tells you about the physical and electrical make up of the unit, as well

as its heating and cooling capacities. Look in this section to find the correct values for components and functions.

❑ Section 2: Processes and Functions, explains each different part of the cooling and heating

cycle, and how each control function reacts to changing conditions to keep the room at the set temperature range.

❑ Section 3: Electrical Data, which has fold-out schematic and wiring diagrams so you can find

the parts you need to check when something is wrong, and see how they should be connected.

❑ Section 4: Service Procedures, has two main parts, a

specific component to replace or adjust, and a chapter with specific procedures and values to guide you in checking the electrical components in the unit.

WHAT IS IN THIS MANUAL

diagnostic

chapter to help you find the

HOW TO USE THIS MANUAL

You can use this manual both as a reference to find specific information about the capacity, functions and construction of this unit, and as a source of information to help you set up and maintain the unit. When this unit is not working properly, and the cause is not known, you can use the procedures in Section 3: Servicing Procedures to find the problem, fix it, and restore the unit to its proper functioning.

This air conditioner has many helpful self diagnostic features to help you identify problem areas quickly.

So you will be ready when a problem happens, we suggest you look this manual over and become familiar with it by following these steps:

1. Look at the TABLE OF CONTENTS to get an idea of what is in this manual and where to find it.

2. Look at the chapter about TROUBLE SHOOTING, so you are familiar with the way the flow

charts work. They are designed to guide you quickly through the possible causes for each kind of problem that is likely to happen to the Unit. Particularly read the introduction to this section, and the parts about the self-diagnosis and error codes which show on the display.

3. Look at the chapter about CHECKING ELECTRICAL COMPONENTS. You already know

about most of these procedures. This chapter gives you the specific values and methods for these components. If you don’t know some of these procedures, you can easily learn them here.

4. Read the Instruction Manual! The Instruction Manual is included here because it helps you help

the user to set the temperature controls properly and know how to take care of any simple problems that may happen, as well as know when to call for service. The Instruction Manual also has illustrations, care, and installation information not found in the rest of the service manual. It is short, and if you read it carefully, you will be able to answer the customers questions easily, and also know the most efficient ways for setting times and temperatures.

Please use this manual to make your work easier, keep the air conditioner functioning well, and keep your customers satisfied.

– 5 –

SM830076

1. SPECIFICATIONS

1-1 Unit Specifications ...........................................................................................7

1-2 Major Component Specifications .................................................................. 11

(A)Indoor Unit ................................................................................................ 11

(B)Outdoor Unit .............................................................................................13

1-3 Other Component Specifications .................................................................. 15

(A)Indoor Unit ................................................................................................ 15

(B)Outdoor Unit .............................................................................................17

1-4 Dimensional Data...........................................................................................19

(A)Indoor Unit ................................................................................................ 19

(B)Outdoor Unit .............................................................................................21

1-5 Refrigerant Flow Diagram ............................................................................. 23

1-6 Operating Range............................................................................................23

– 6 –

SM830076

1. Specifications

1-1 Unit Specifications

MODEL No. Indoor Unit XHS2432

Outdoor Unit CH2432 POWER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating

Capacity* BTU / h 24,000 23,400 25,000 24,300 Moisture removal (High) Pints / h 8.6 8.4 —

Air circulation (Hi) S.E.E.R. (H.S.P.F.)

ELECTRICAL RATINGS

Voltage rating VAC 230 208 230 208 Available voltage range VAC 187 - 253 187 - 253 Running amperes A 11.2 11.6 11.7 12.3 Max. running amperes A — — — — Power input* W 2,450 2,350 2,500 2,450

Buck-up heater kW — — — — Maximum fuse size A 30

FEATURES

Controls Microprocessor Fan speeds Indoor / Outdoor 3 and Automatic control / 2 (Auto) Timer ON / OFF 24-hours & Program Air deflection Horizontal / Vertical — / Automatic Air filter Washable, easy access, long life fiter (2,500 hr) Operation sound Indoor dB - A 37 / 35 / 31

Hi / Me / Lo Outdoor - Hi dB - A 53 Refrigerant control Electronic Refrigerant Control Valve

REFRIGERANT PIPING

Limit of piping length ft. (m) 165 (50) Limit of piping length at shipment ft. (m) 100 (30) Limit of elevation difference ft. (m) Outdoor unit is higher than indoor unit: 165 (50)

between the two units Outdoor unit is lower than indoor unit: 100 (30) Refrigerant piping Narrow pipe in. (mm) 1 / 4 (6.35)

Flare type Wide pipe in. (mm) 3 / 4 (19.05)

(17°F)** 16,400 15,800

cu.ft. / min.

BTU / Wh

(17°F)** 2,150 2,020

10.0 10.2 (7.0) (7.0)

540 / 510

– 7 –

SM830076

1. Specifications

1-1 Unit Specifications

DIMENSIONS & WEIGHT Indoor unit Outdoor unit

Unit dimensions Height in. (mm) 9-27/32 (250) 28-30/32 (735)

Width in. (mm) 29-29/32 (760) 37 (940) Depth in. (mm) 29-29/32 (760) 13-12/32 (340)

Net weight lbs. (kg) 49 (22) 157 (71)

Indoor grille dimensions Height in. (mm) 3-1/16 (78)

PNR-XHS2432 Width in. (mm) 33-27/32 (860)

Depth in. (mm) 33-27/32 (860)

Net weight lbs. (kg) 11 (5)

Indoor / Outdoor unit Height in. (mm) 11-6/32 (284) 32-17/32 (826)

Package dimensions Width in. (mm) 32-14/32 (824) 40 (1,016)

Depth in. (mm) 32-25/32 (833) 16-12/32 (416) Shipping weight lbs. (kg) 60 (27) 170 (77) Shipping volume cu.ft. (m3) 6.9 (0.195) 12.3 (0.349)

Indoor grille Height in. (mm) 4-3/32 (104)

Package dimensions Width in. (mm) 38-2/32 (967) PNR-XHS2432 Depth in. (mm) 39-11/32 (999) Shipping weight lbs. (kg) 18 (8) Shipping volume cu.ft. (m3) 3.5 (0.100)

Cooling :

Rating conditions (*) : Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB

Heating :

Rating conditions (*) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB Low temp conditions (**): Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 8 –

SM830076

1. Specifications

1-1 Unit Specifications

MODEL No. Indoor Unit XHS3632

Outdoor Unit CH3632 POWER SOURCE 230 - 208 VAC / 1 Phase / 60 Hz PERFORMANCE Cooling Heating

Capacity* BTU / h 34,500 33,500 37,500 36,500 Moisture removal (High) Pints / h 11.1 11.1 —

Air circulation (Hi) S.E.E.R. (H.S.P.F.)

ELECTRICAL RATINGS

Voltage rating VAC 230 208 230 208 Available voltage range VAC 187 - 253 187 - 253 Running amperes A 15.4 15.8 18.2 19.3 Max. running amperes A — — — — Power input* W 3,350 3,200 3,850 3,750

Buck-up heater kW — — — — Maximum fuse size A 30

FEATURES

Hi / Me / Lo Outdoor - Hi dB - A 56 Refrigerant control Electronic Refrigerant Control Valve

REFRIGERANT PIPING

Limit of piping length ft. (m) 165 (50) Limit of piping length at shipment ft. (m) 100 (30) Limit of elevation difference ft. (m) Outdoor unit is higher than indoor unit: 165 (50)

between the two units Outdoor unit is lower than indoor unit: 100 (30) Refrigerant piping Narrow pipe in. (mm) 3 / 8 (9.52)

Flare type Wide pipe in. (mm) 3 / 4 (19.05)

(17°F)** 25,000 23,500

cu.ft. / min.

BTU / Wh

(17°F)** 3,150 2,950

10.7 11.0 (7.0) (7.0)

980 / 880

– 9 –

SM830076

1. Specifications

1-1 Unit Specifications

DIMENSIONS & WEIGHT Indoor unit Outdoor unit

Unit dimensions Height in. (mm) 11-1/32 (280) 48-20/32 (1,235)

Width in. (mm) 41-11/32 (1,050) 37 (940) Depth in. (mm) 29-29/32 (760) 13-12/32 (340)

Net weight lbs. (kg) 60 (27) 203 (92)

Indoor grille dimensions Height in. (mm) 3-1/6 (78)

PNR-XHS3632 Width in. (mm) 33-27/32 (1,150)

Depth in. (mm) 33-27/32 (860)

Net weight lbs. (kg) 15 (7)

Indoor / Outdoor unit Height in. (mm) 12-14/32 (316) 52-7/32 (1,326)

Package dimensions Width in. (mm) 43-27/32 (1,114) 40 (1,016)

Depth in. (mm) 32-25/32 (833) 16-12/32 (416) Shipping weight lbs. (kg) 71 (32) 227 (103) Shipping volume cu.ft. (m3) 10.3 (0.293) 19.8 (0.56)

Indoor grille Height in. (mm) 4-3/32 (104)

Package dimensions Width in. (mm) 49-16/32 (1,257) PNR-XHS3632 Depth in. (mm) 39-11/32 (999) Shipping weight lbs. (kg) 29 (13) Shipping volume cu.ft. (m3) 4.6 (0.131)

Cooling :

Rating conditions (*) : Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB

Heating :

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 10 –

SM830076

1. Specifications

1-2 Major Component Specifications

(A) Indoor Unit

MODEL No. XHS2432 Source 230 - 208 VAC / 1 phase / 60 Hz Remote controller (Accessory) RCS - 5HPS4U Controller P. C. B Ass'y CR - THS2432 Control circuit fuse 250 VAC, 3 A Controller Ass'y CR - 3XHS Fan (Number … diameter) in. (mm) Turbo (1…19-9/32 (490)) Fan motor

Model SFG6X - 41A5P Source 230 - 208 V / 1 phase / 60 Hz No. of pole … r.p.m. (230 V, High) rpm 6 … 451 Nominal output W 40 Coil resistance Ω BRW - WHT : 114.0 , ORG - YEL : 66.4 (Ambient temperature 68 °F) WHT - VLT : 23.9 , WHT - PNK : 77.4

VLT - ORG : 12.4 , YEL - BLK : 82.1

Safety device

Operating temperature Open °F266± 14.4

Close °F 174.2 ± 27

Run capacitor VAC, µF 440 V , 4 µF

Electronic expansion valve

Coil DKV - MOZS582E0 Coil resistance (at 20°C) Ω ORG - GRY : 46 , YEL - GRY : 46

RED - GRY : 46 , BLK - GRY : 46

Valve body IKV - 24D12

Heat exchanger

Coil Aluminum plate fin / Copper tube Rows … Fins per inch 2 … 14.9 Face area ft.

Panel

Model No. PNR - XHS2432 Indicator Lamp Ass'y IND - 3THS Auto louver motor MT8 - 3C Auto louver motor … Rated V, W, rpm 240 VAC , 3 W , 3 rpm Coil resistance (Ambient temperature 77 °F) Ω 16.430 Ω ± 8 %

(m2) 3.18 (0.295)

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 11 –

SM830076

1. Specifications

1-2 Major Component Specifications

(A) Indoor Unit

MODEL No. XHS3632 Source 230 - 208 VAC / 1 phase / 60 Hz Remote controller (Accessory) RCS - 5HPS4U Controller P. C. B Ass'y CR - THS2432 Control circuit fuse 250 VAC, 3 A Controller Ass'y CR - 3XHS Fan (Number … diameter) in. (mm) Turbo (1…19-9/32 (490)) Fan motor

Model SFG6X - 61A3P Source 230 - 208 V / 1 phase / 60 Hz No. of pole … r.p.m. (230 V, High) rpm 6 … 560 Nominal output W 60 Coil resistance Ω BRW - WHT : 71.1 , ORG - YEL : 22.7 (Ambient temperature 68 °F) WHT - VLT : 8.7 , VLT - PNK : 43.2

VLT - ORG : 13.3 , YEL - BLK : 54.32

Safety device

Operating temperature Open °F266± 14.4

Close °F 174.2 ± 27

Run capacitor VAC, µF 440 V , 6 µF

Electronic expansion valve

Coil EKV - MOZS584E0 Coil resistance (at 20°C) Ω ORG - GRY : 46 , YEL - GRY : 46

RED - GRY : 46 , BLK - GRY : 46

Valve body HKV - 30D16

Heat exchanger

Coil Aluminum plate fin / Copper tube Rows … Fins per inch 2 … 14.9 Face area ft.

Panel

Model No. PNR - XHS3632 Indicator Lamp Ass'y IND - 3THS Auto louver motor MT8 - 3C Auto louver motor … Rated V, W, rpm 240 VAC , 3 W , 3 rpm Coil resistance (Ambient temperature 77 °F) Ω 16.430 Ω ± 8 %

(m2) 5.17 (0.48)

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 12 –

SM830076

1-2 Major Component Specifications

(B) Outdoor Unit

MODEL No. CH2432 Source 230 - 208 VAC / 1 phase / 60 Hz Controller P.C.B. Ass'y CR - CH2432 (Microprocessor)

Control circuit fuse 250 VAC, 3 A

Compressor Rotary (Hermetic)

Model C - 2R160H6T Source 230 - 208 VAC / 1 phase / 60 Hz Nominal output W 1,700 Compressor oil cc 800 Coil resistance (Ambient temperature 77 °F) Ω C – R : 0.885 , C – S : 1.773

Safety device Internal type

Overload relay models — Operating temperature Open °F 297 ± 9

Close °F 198 ± 20

Operating ampere (at 77 °F) A — Run capacitor VAC, µF 400 VAC, 40 µF Crank case heater VAC, W 230 VAC, 30 W

Refrigerant amount charged at shipment lbs. (kg) R22 : 6.17 (2.8) High pressure switch ACB-1UB11

Set pressure OFF lb/in2(kg/cm2) 426.6 (30 )

ON lb/in2(kg/cm2) 341.3 ± 28.44 (24 ± 2.0)

Fan Propeller

Number...diameter in. (mm) 1 ... 18 - 3/32 (460)

Fan speeds 2 (AUTO) Fan motor

Model KFC6T - 91D6P Source 230 - 208 VAC / 1 phase / 60 Hz

No. of pole ..... rpm (230 V, High) 6 ... 879

Nominal output W 110 Coil resistance Ω BRN – WHT : 67.14 , VLT – YEL : 11.42

(Ambient temperature 68 °F) WHT – VLT : 64.85 , YEL – PNK : 10.60 Safety device Internal type

Operating temperature Open °F 248 ± 9

Close °F 171 ± 27

Run capacitor VAC, µF 440 VAC, 4 µF

Heat exchange

Coil Aluminum plate fin / Copper tube

Rows ..... Fins per inch 2 ... 14.1

Face area ft.

(m2) 6.78 (0.63)

+ 28.44 + 7.11

DATA SUBJECT TO CHANGE WITHOUT NOTICE

+ 2.0 + 0.5

1. Specifications

– 13 –

SM830076

1-2 Major Component Specifications

(B) Outdoor Unit

MODEL No. CH3632 Source 230 - 208 VAC / 1 phase / 60 Hz Controller P.C.B. Ass'y CR - CH2432 (Microprocessor)

Control circuit fuse 250 V, 3 A

Compressor Rotary (Hermetic)

Model C - R221H6R Source 230 - 208 VAC / 1 phase / 60 Hz Nominal output W 2,200 Compressor oil cc 1,500 Coil resistance (Ambient temperature 77 °F) Ω C – R : 0.549 , C – S : 1.525

Safety device Internal type

Overload relay models —

Operating temperature Open °F 320 ± 9

Close °F 189 ± 20

Operating ampere (at 77 °F) A — Run capacitor VAC, µF 400 VAC, 40 µF Crank case heater VAC, W 230 VAC, 30 W

Refrigerant amount charged at shipment lbs. (kg) R22 : 8.82 (4.0) High pressure switch ACB-1UB11

Set pressure OFF lb/in2(kg/cm2) 426.6 (30 )

ON lb/in2(kg/cm2) 341.3 ± 28.44 (24 ± 2.0)

Fan Propeller

Number...diameter in. (mm) 2 ... 18 - 3/32 (460)

Fan speeds 2 (AUTO) Fan motor

Model KFC6T - 91D6P × 2 Source 230 - 208 V / 1 phase / 60 Hz

No. of pole ..... rpm (230 V, High) 6 ... 879

Nominal output W 110 × 2 Coil resistance Ω BRN – WHT : 67.14 , VLT – YEL : 11.42

(Ambient temperature 68 °F) WHT – VLT : 64.85 , YEL – PNK : 10.60 Safety device Internal type

Operating temperature Open °F 248 ± 9

Close °F 171 ± 27

Run capacitor VAC, µF 440 VAC, 4 µF × 2

Heat exchange

Coil Aluminum plate fin / Copper tube

Rows ..... Fins per inch 2 ... 14.1

Face area ft.

(m2) 11.63 (1.08)

+ 28.44 + 7.11

DATA SUBJECT TO CHANGE WITHOUT NOTICE

+ 2.0 + 0.5

1. Specifications

– 14 –

SM830076

1. Specifications

1-3 Other Component Specifications

(A) Indoor Unit

MODEL No. XHS2432 Power Transformer ATR – II174B

Rated Primary 220 VAC, 60 Hz

Secondary 14.8 VAC 0.55 mA, 14.8 VAC 0.6 mA Capacity —

Coil resistance (Ambient temprature 77 °F)

Thermistor cut off temperature °F277

Thermistor (Coil sensor) : TH2, 3 PBC - 41E - S26

Coil resistance kΩ 14 °F : 23.7 , 41 °F : 12.1

Thermistor (Room sensor) : TH1 KTEC - 35 - S6

Coil resistance kΩ 32 °F : 16.5 , 104 °F : 2.7

Drain pump WP20SL - 21

Rated 230 / 208 VAC, 12.5 W

Float switch FS - 0218 - 102

MAX Rated (Contact rated) 50 W, DC 5V, 0.1 mA

Solenoid control valve or coil

Solenoid control valve IKV - 24D12 Solenoid coil DKV - MOZS582E0

Indicator Lamp Ass'y IND - 3THS Synchronized Motor MT8 - 3C

Ω WHT - WHT : 101 , BRN - BRN : 0.42

23 °F : 18.8 , 50 °F : 9.7 32 °F : 15.0 , 59 °F : 8.0

41 °F : 12.8 , 113 °F : 2.2 50 °F : 10.0 , 122 °F : 1.8 68 °F : 6.3 , 131 °F : 1.5 86 °F : 4.0 ,

– 15 –

SM830076

1. Specifications

1-3 Other Component Specifications

(A) Indoor Unit

MODEL No. XHS3632 Power Transformer ATR – II174B

Rated Primary 220 VAC, 60 Hz

Secondary 14.8 VAC 0.55 mA, 14.8 VAC 0.6 mA Capacity —

Coil resistance (Ambient temprature 77 °F)

Thermistor cut off temperature °F277

Thermistor (Coil sensor) : TH2, 3 PBC - 41E - S36

Coil resistance kΩ 14 °F : 23.7 , 41 °F : 12.1

Thermistor (Room sensor) : TH1 KTEC - 35 - S6

Coil resistance kΩ 32 °F : 16.5 , 104 °F : 2.7

Drain pump WP20SL - 21

Rated 230 / 208 VAC, 12.5 W

Float switch FS - 0218 - 103

MAX Rated (Contact rated) 50 W, DC 5V, 0.1 mA

Solenoid control valve or coil

Solenoid control valve HKV - 30D16 Solenoid coil EKV - MOZS728E0

Indicator Lamp Ass'y IND - 3THS

Synchronized Motor MT8 - 3C

Ω WHT - WHT : 101 , BRN - BRN : 0.42

23 °F : 18.8 , 50 °F : 9.7 32 °F : 15.0 , 59 °F : 8.0

41 °F : 12.8 , 113 °F : 2.2 50 °F : 10.0 , 122 °F : 1.8 68 °F : 6.3 , 131 °F : 1.5 86 °F : 4.0 ,

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 16 –

SM830076

1. Specifications

1-3 Other Component Specifications

(B) Outdoor Unit

MODEL No. CH2432 Compressor Motor Magnetic Contactor FMCA - 1UL

Coil rated 240 VAC, 60 Hz Coil resistance (at 77 °F) Ω 580 ± 15 % Contact rated (Main) 230 VAC, 20 A Contact rated (Auxiliary) 230 VAC, 3 A

Power Relay HH62S

Coil rated 240 VAC, 60 Hz Coil resistance (at 77 °F) kΩ 17.2 Contact rated 220 VAC, 5 A

Power Transformer ATR - I65C

Rated

Primary 220 VAC, 60 Hz

Secondary 14 V, 0.4 A Capacity 5.6 VA Coil resistance (at 73 °F ) Ω WHT – WHT : 395.5 , BRN – BRN : 2.19 Thermal cut off temperature °F266

Thermistor (Coil sensor) : TH6, 7

Coil resistance kΩ 14 °F : 23.7 , 50 °F : 9.7

Thermistor (Comp. discharge gas sensor) : TH8

Coil resistance kΩ 140 °F : 13.8 , 194 °F : 5.1

Solenoid control valve or coil

Solenoid control valve V 389100 Solenoid coil LB 59005

Thermistor (PTC) TDK – 101YV

Rated

Max. voltage 400 VAC Max. ampere 11.5 A

Resistance (at 77 °F) Ω 100 %

PBC - 41E - S4 , PBC - 41E - S26

23 °F : 18.8 , 68 °F : 6.5 32 °F : 15.0 , 86 °F : 4.4 41 °F : 12.1 , 104 °F : 3.1

113 °F : 2.6

PTC - 51H - S1

158 °F : 9.7 , 212 °F : 3.8 167 °F : 8.2 , 230 °F : 2.8 176 °F : 7.0 , 248 °F : 2.2 185 °F : 5.9 , 266 °F : 1.7

+ 30 – 20

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 17 –

SM830076

1. Specifications

1-3 Other Component Specifications

(B) Outdoor Unit

MODEL No. CH3632

Compressor Motor Magnetic Contactor FMCA - 1SUL

Coil rated 240 VAC, 60 Hz Coil resistance (at 68 °F) Ω 588 ± 10 % Contact rated (Main) 240 VAC, 26 A Contact rated (Auxiliary) 240 VAC, 3 A

Power Relay HH62S

Coil rated 240 VAC, 60 Hz Coil resistance (at 77 °F) kΩ 17.2 Contact rated 220 VAC, 5 A

Power Transformer ATR - I65C

Rated

Primary 220 VAC, 60 Hz

Secondary 14 V, 0.4 A Capacity 5.6 VA Coil resistance (at 73 °F ) Ω WHT – WHT : 395.5 , BRN – BRN : 2.19 Thermal cut off temperature °F266

Thermistor (Coil sensor) : TH6, 7

Coil resistance kΩ 14 °F : 23.7 , 50 °F : 9.7

Thermistor (Comp. discharge gas sensor) : TH8

Coil resistance kΩ 140 °F : 13.8 , 194 °F : 5.1

Solenoid control valve or coil

Solenoid control valve V 389100 Solenoid coil LB 59005

Thermistor (PTC) TDK – 101YV

Rated

Max. voltage 400 VAC Max. ampere 11.5 A

Resistance (at 77 °F) Ω 100 %

PBC - 41E - S4 , PBC - 41E - S36

23 °F : 18.8 , 68 °F : 6.5 32 °F : 15.0 , 86 °F : 4.4 41 °F : 12.1 , 104 °F : 3.1

113 °F : 2.6

PTC - 51H - S1

158 °F : 9.7 , 212 °F : 3.8 167 °F : 8.2 , 230 °F : 2.8 176 °F : 7.0 , 248 °F : 2.2 185 °F : 5.9 , 266 °F : 1.7

+ 30 – 20

DATA SUBJECT TO CHANGE WITHOUT NOTICE

– 18 –

SM830076

1-4 Dimensional Data

(A) Indoor Unit: XHS2432

4-29/32

1. Specifications

8-21/32

8-1/16

• Remote controller (Accessory)

X-view

13-3/8

4-29/32

5-29/32 7-7/8

10-1/32

32-9/32 (Ceiling opening)

23-7/32 (Suspention bolt pitch)

Grille center

13-2/4 1-3/8

32-9/32 (Ceiling opening)

28-3/4(Suspention bolt pitch)

11-23/32 1-3/16

8-1/16

6-1/2

1-7/8

3-15/16

29-29/32

3-15/16

19/32

1/2

33-27/32

19-11/16

2-13/32 23/32

33-27/32 19-11/16

6-25/32

Min. 2-3/8

3-1/32

4-29/32

29-29/32

– 19 –

1/2

Dimension : inch

Air intake Air outlet Narrow tube (1/4") Wide tube (3/4") Drain connection Power line (conduit size : 1/2") For discharge duct Suspention bolt mounting

1024_X_S

SM830076

1-4 Dimensional Data

(A) Indoor Unit: XHS3632

8-19/32

1. Specifications

2-13/32

32-9/32 (Ceiling opening)

23-7/32 (Suspention bolt pitch)

13-15/32 19/32

X-view

19-9/32 1-9/16

5-23/321-3/8

29-29/32

2-3/4

8-9/32

6-1/2

11-7/32

12-29/32

8-19/32

4-29/32

2-3/8

1-3/16

15/32

33-27/32 19-11/16

Panel center

41-11/32

43-11/16 (Ceiling opening)

40-5/32 (Suspention bolt pitch)

3-15/16 3-15/16

1-7/8

8-9/32

45-9/32

31-3/32

15/32

Dimension : inch

Air intake grille Air outlet Refrigerant liquid line (ø3/8") Refrigerant gas line (ø3/4") Drain connection Power supply entry For discharge duct Humidifier (option) mounting hole Suspension bolt mounting

1346_X_S

– 20 –

SM830076

1-4 Dimensional Data

(B) Outdoor Unit: CH2432

1-31/32

1. Specifications

4-21/64266-11/16

1-31/32

1-3/16

13-3/8

28-15/16

14-31/32 13/32

15-3/4

12-1/16

Dimension : inch

Hole for anchor bolt (4-ø1/2) Refrigerant tube joint (narrow tube) Flare connection 1/4 in (6.35 mm) Refrigerant tube joint (wide tube) Flare connection 3/4 in (19.05 mm) Refrigerant tubing inlet Power supply inlet

1131_THS_I

– 21 –

SM830076

1-4 Dimensional Data

(B) Outdoor Unit: CH3632

1-31/32 1-31/32

1. Specifications

4-21/64266-11/16

1-3/16

13-3/8

48-5/8

15-3/4

14-31/32 13/32

22-27/32

23-29/32

– 22 –

Dimension : inch

Hole for anchor bolt (4-ø13) Refrigerant tube joint (narrow tube) Flare connection 3/8 in (9.52 mm) Refrigerant tube joint (wide tube) Flare connection 3/4 in (19.05 mm) Refrigerant tubing inlet Power supply inlet

1581_C_S

SM830076

1-5 Refrigerant Flow Diagram

Outdoor Unit: CH2432 Indoor Unit: XHS2432

1. Specifications

Compressor

Accumulator

High pressure switch

Sub-heat exchanger

Cooling Cycle Heating Cycle

Accumulator

4-way valve

Heat exchanger

Distributor

Muffler

Gas line service valve

Liquid line service valve

O.D. 3/4" (19.05mm)

O.D. 1/4" (6.35mm)

Gas line nipple

Heat exchanger

Distributor

Strainer

Electronic ref.control valve

Liquid line nipple

Strainer

1132_THS_I

1-6 Operating Range

Temperature Indoor Air Intake Outdoor Air Intake

Cooling

Heating

Maximum 95 °F DB, 71 °F WB 115 °F DB

Minimum 67 °F DB, 57 °F WB 23 °F DB

Maximum 80 °F DB, 67 °F WB 75 °F DB, 65 °F WB

Minimum -DB / -WB 17 °F DB / 15 °F WB

SM830076

– 23 –

1-5 Refrigerant Flow Diagram

Outdoor Unit: CH3632 Indoor Unit: XHS3632

1. Specifications

Compressor

Accumulator

High pressure switch

Sub-heat exchanger

Cooling Cycle Heating Cycle

Accumulator

4-way valve

Heat exchanger

Distributor

Muffler

Gas line service valve

Liquid line service valve

O.D. 3/4" (19.05mm)

O.D. 3/8" (9.52mm)

Gas line nipple

Heat exchanger

Distributor

Strainer

Electronic ref.control valve

Liquid line nipple

Strainer

1398_THS_I

1-6 Operating Range

Temperature Indoor Air Intake Outdoor Air Intake

Cooling

Heating

Maximum 95 °F DB, 71 °F WB 115 °F DB

Minimum 67 °F DB, 57 °F WB 23 °F DB

Maximum 80 °F DB, 67 °F WB 75 °F DB, 65 °F WB

Minimum -DB / -WB 17 °F DB / 15 °F WB

– 24 –

SM830076

2. Processes and functions

1. Specifications

2. PROCESSES AND FUNCTIONS

2-1 Room Temperature Control .......................................................................... 26

(A)Cooling .....................................................................................................26

(B)Heating .....................................................................................................27

2-2 Cold Draft Prevention (Heating Cycle) .......................................................... 28

2-3 Automatic Fan Speed (Indoor Unit)............................................................... 29

(A)Cooling .....................................................................................................29

(B)Heating .....................................................................................................29

2-4 Outdoor Fan Speed Control.......................................................................... 30

(A)Cooling .....................................................................................................30

(B)Heating .....................................................................................................30

2-5 Freeze Prevention (Cooling) ......................................................................... 31

2-6 Condensing Temperature Control (Cooling) ................................................. 32

2-7 Overload Protection (Heating)....................................................................... 33

2-8 Discharge Temperature Control (Cooling and Heating)................................ 34

2-9 Auto. Mode for Automatic Heating/Cooling Switching................................... 35

2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating)......................... 37

2-11 4-Way Valve, Solenoid Control ..................................................................... 38

(A)Normal Control Mode ...............................................................................38

(B)AUTO Control Mode .................................................................................39

2-12 Automatic Restart after Power Interruption ................................................... 39

2-13 Electronic Expansion Valve .......................................................................... 40

2-14 Compressor Discharge Gas Temperature .................................................... 40

(A)Cooling .....................................................................................................40

(B)Heating (Except During Defrosting) ......................................................... 40

2-15 Compressor Current Detection Circuit .......................................................... 41

2-16 Electronic Expansion Valve Control .............................................................. 42

2-17 Voltage Detection Control ............................................................................. 43

Section

– 25 –

SM830076

Section

2. Processes and functions

2-1 Room Temperature Control

The Unit adjusts room temperature by turning the outdoor unit’s compressor ON and OFF. This process is controlled by the thermostat located in the remote control unit. The figures on this and the next pages show how each part of the system performs when the room temperature changes and the thermostat activates the compressor to start (thermo ON) or stop (thermo OFF). Fig. 1 shows about the cooling cycle, and Fig. 2 shows about the heating cycle.

(A) Cooling

THERMO. OFF

(THERMO. ON)

(THERMO. OFF)

ROOM TEMP.

THERMO. ON

BODY SENSOR

SET TEMP

COMPRESSOR

OUTDOOR FAN

T+2 °F

. T °F

T–2 °F

(H OR M)

INDOOR FAN

MORE THAN 5 MINUTES

ON ON ON

1. Refer to 2-4 Outdoor Fan Speed Control

3 MINUTES

OFF OFF

5 MINUTES

SET SPEED

MORE THAN 3 MINUTES

MORE THAN 5 MINUTES

Fig. 1

Chart Summary and Explanations

❑ Once the compressor starts, it keeps running for 5 minutes. ❑ Once the compressor stops, it will not start running again for 3 minutes. ❑ If you change the operation mode (HEAT, COOL, or FAN) during the cooling cycle, the

control circuit stops the compressor for 3 minutes.

❑ For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off,

the compressor is not controlled by the room sensor.

❑ Thermo ON: When room temperature rises 2°F (4°F when set on body sensor) above

the set temperature T˚, (T˚+2°F or T˚+4°F when set on body sensor):

Compressor ➞ ON

❑ Thermo OFF: When the room temperature is –2°F below the set temperature T˚:

Compressor ➞ OFF

1133_THS_I

– 26 –

SM830076

2. Processes and functions

1. Specifications

(B) Heating

REMOTE CONTROL

SENSOR (Only for wireless remote controller)

SETTING TEMP.

BODY SENSOR

SET TEMP.+7°F SHIFT

COMPRESSOR

1 OUTDOOR FAN (H OR M)

INDOOR FAN

SET. +2°F SET. –2°F

+2°F

–2°F

SET TEMP.

OFF

THERMO. ON

ONOFF

3 SECONDS

THERMO. OFF

3 MINUTES

OFF

THERMO. ON

THERMO. OFF

MORE THAN

5 MINUTES5 MINUTES

ON OFF ONOFFOFF ON

ON OFF ON

SET SPEEDSET SPEED

MORE THAN 3 MINUTES

THERMO. ON

THERMO. ONTHERMO. ON

Section

SET SPEED

STANDBY

INDOOR HEAT EXCH. COIL TEMP. E2 SOLENOID COIL (4-WAY)

TEMP. OPERATION BUTTON

(88°F)

81°F 77°F

OFF

ON ON ON

OFF

1. Refer to 2-4 Outdoor Fan Speed Control

2. Refer to 2-2 Cold Draft Prevention (Heating)

OFF OFF

ON (REVERSING CYCLE)

Chart Summary and Explanations

control circuit stops the compressor for 3 minutes.

❑ For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off,

the compressor is not controlled by the room sensor.

When set on remote control sensor

Thermo ON: When room temperature is –2°F below the set temperature T˚.

Compressor ➞ ON

Thermo OFF: When the room temperature is 2°F above the set temperature T˚, (T˚+2°F)

Compressor ➞ OFF

When set on body sensor

NOTE: In case of Body sensor, operating temperature is shifted to setting temperature +7°F.

OFF

1134_THS_I

Fig. 2

– 27 –

SM830076

2. Processes and functions

2-2 Cold Draft Prevention (Heating Cycle)

The cold draft prevention function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coils have warmed up.

❑ STANDBY shows on the remote controller when the indoor fan speed is LL (very

low) or OFF. This condition occurs in the following 3 cases:

• During Thermo OFF (refer to 2-1 B). Room Temperature Control, Heating)

Section

• During the defrosting operation (refer to 2-10 Defrosting Control, Heating)

• Until either the coil temperature E2 reaches 81°F or when a maximum of 6 minutes has past.

❑ The indoor fan motor operates in L instead of LL for 3 seconds as it starts to give

the fan an initial boost.

MAX. 6 MINUTES

INDOOR UNIT

COIL TEMP.

E2 (°F)

SET FAN SPEED

❑ The main idea of this chart is to show that the indoor fan speed increases and gets closer to

❑ The indoor unit’s coil temperature is taken from sensor E2 located in the middle of the indoor

❑ The dotted line shows that the indoor fan motor is OFF. When the temperature at sensor E2

AUTO OR H

“STANDBY” INDICATOR

the set fan speed as the coil temperature E2 rises.

heat exchange coil.

falls below 50°F, the indoor fan motor stops running.

LL LL/OFF LL L M H

LL LL/OFF LL L M M

L LL LL/OFF LL L L L

“STANDBY” APPEARS

LL= Very low speed L= Low speed

Chart Summary and Explanations

– 28 –

M= Medium speed H= High speed

1135_THS_I

Fig. 3

SM830076

2. Processes and functions

1. Specifications

2-3 Automatic Fan Speed (Indoor Unit)

By pressing the FAN SPEED button on the remote controller, the fan speed can be set at one of four steps: AUTO., HI., MED., or LO. When set at AUTO. the indoor unit fan speed will be automatically adjusted to the room temperature as the two charts shown below.

(A) Cooling

❑ When the fan speed changes, it keeps the speed step for at least 3 minutes, even if the

(B) Heating

ROOM TEMP.

(deg)

+3 +2

SET TEMP.

INDOOR FAN

SPEED

HM: High

: MiddleLLL

: Low : Very low

Chart Explanations and notes

temperature changes to another speed step during the time.

Section

0433_M_S

Fig. 4

ROOM TEMP.

(deg)

SET TEMP.

–2 –4

INDOOR FAN

SPEED H

HM: High

: MiddleLLL

: Low : Very low

0434_M_S

Chart Explanations and notes

❑ When the fan speed changes, it keeps the speed step for at least 1 minute, even if the

temperature changes to another speed step during the time.

– 29 –

Fig. 5

SM830076

2. Processes and functions

2-4 Outdoor Fan Speed Control

To optimize the performance of air conditioner, the outdoor fan speed is selected automatically according to the outdoor temperature.

❑ Note that in both Cooling and Heating modes, the fan comes on at first at high

speed (H mode) for 5 seconds. Since outdoor conditions sometimes make it difficult for the fan to start, this sudden surge of power may be necessary.

Section

❑ The outdoor fan operates in H mode for 3 minutes after the compressor stops

(excluding defrosting operation period).

❑ Charts below show how the outdoor fan speed changes with the change in

outdoor temperature.

(A) Cooling

Outdoor unit coil Outdoor fan temperature [C2] motor (FMo)

or more 77°F H less than 77°F M

OUTDOOR TEMPERATURE (°F)

Fig. 6

(B) Heating

Outdoor coil Outdoor fan temperature [C2] motor (FMo)

or more 57°F M less than 57°F H

OUTDOOR TEMPERATURE (°F)

Fig. 7

SM830076

– 30 –

+ 76 hidden pages