Bryant 619PHA Series, 619PHAQ18XA3, 619PHAQ24XA3, 619PHAQ09XA3, 619PHAQ12XA3 Service Manual

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Page 1



619PHA High Wall Ductless System

Sizes 09 to 24

Service Manual

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS.......................................................1

INTRODUCTION............................................................................1

MODEL NUMBER NOMENCLATURE .......................................2

SPECIFICATIONS..........................................................................3

DIMENSIONS ................................................................................. 4

CLEARANCES................................................................................6

ELECTRICAL DATA ..................................................................... 7

WIRING...........................................................................................7

CONNECTION DIAGRAM............................................................ 8

WIRING DIAGRAM.......................................................................9

FAN AND MOTOR SPECIFICATIONS........................................11

REFRIGERATION CYCLE DIAGRAM........................................11

REFRIGERANT LINES..................................................................12

SYSTEM EVACUATION AND CHARGING...............................12

OPERATION MODES AND FUNCTIONS...................................13

ERROR DIAGNOSIS AND TROUBLESHOOTING WITHOUT ER-

ROR CODE...................................................................................... 20

QUICK MAINTENANCE BY ERROR CODE..............................24

TROUBLESHOOTING BY ERROR CODE.................................. 25

DIAGNOSIS AND SOLUTION......................................................27

DISASSEMBLY INSTRUCTIONS ................................................ 40

APPENDICES..................................................................................64

SAFETY CONSIDERATIONS

Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start-up, and service this equipment.

Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained service personnel.

When working on the equipment, observe the precautions in the literature and on tags, stickers, and labels attached to the equipment.

Follow all safety codes. Wear safety glasses and work gloves. Keep a quenching cloth and fire extinguisher nearby when brazing. Use care in handling, rigging, and setting bulky equipment.

Read this manual thoroughly and follow all the warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements.

Recognize safety information. This is the safety-alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION.

These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing, modifying, or servicing the system, the main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.

WARNING

EXPLOSION HAZARD

Failure to follow this warning could result in death, serious personal injury, and/or property damage.

Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion.

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Do not bury more than 36 in. (914 mm) of refrigerant pipe in the ground. If any section of pipe is buried, there must be a 6 in. (152 mm) vertical rise to the valve connections on the outdoor units. If more than the recommended length is buried, refrigerant may migrate to the cooler buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start-up.

INTRODUCTION

This service manual provides the necessary information to service, repair, and maintain the indoor units. This manual has an appendix

with data required to perform troubleshooting. Use the Table of Contents to locate a desired topic.

Page 2

MODEL NUMBER NOMENCLATURE

619

P H A Q

09 X 3

619 = FAN COIL UNIT

P = MODEL

VOLTAGE 3 = 208/230-1-60

SYSTEM TYPE H = HIGH WALL

MAJOR SERIES

X = NOT USED

NOMINAL CAPACITY 09 - 3/4 TON 12 - 1 TON 18 - 1.5 TONS 24 - 2 TONS

A = VARIATION

INDOOR FAN COIL TYPE Q = HEAT PUMP

Week of Manufacture

Sequential Serial Number

V = ALL MODELSYear of Manufacture

Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org.

Table 1 —Unit Sizes

SYSTEMS TONS VOLTAGE/PH/HZ INDOOR MODEL

9 12 619PHAQ12XA3 18 619PHAQ18XA3

208-230/1/60

24 619PHAQ24XA3

INDOOR UNIT

619PHAQ09XA3

2 Specifications subject to change without notice. SM619PHA-03

19 10001

Page 3

SPECIFICATIONS

SYSTEM

ELECTRICAL

CONTROLS

OPERATING

RANGE

PIPING

INDOOR COIL

INDOOR

Indoor Model Voltage, Phase, Cycle V/Ph/Hz Power Supply MCA A. Wireless Remote controller

(°F/°C Convertible) Wired Remote controller

(°F/°C Convertible) Cooling Indoor DB Min - Max °F (°C) Heating Indoor DB Min - Max °F (°C) Pipe Connection Size - Liquid in (mm) Pipe Connection Size - Suction in (mm) Face Area (sq. ft.) Sq. Ft. No. Rows Fins per inch Circuits Unit Width in (mm) Unit Height in (mm) Unit Depth in (mm) Net Weight lbs (kg) Number of Fan Speeds Airflow (lowest to highest) CFM Sound Pressure (lowest to highest) dB(A) Air throw Data ft (m)

Moisture removal

Field Drain Pipe Size O.D. in (mm)

Table 2 — Specifications

SIZE 9 12 18 24

619PHAQ09XA3 619PHAQ12XA3 619PHAQ18XA3 619PHAQ24XA3

208/230-1-60 208/230-1-60 208/230-1-60 208/230-1-60

Indoor unit powered from outdoor unit

0.3 0.3 0.5 0.5

Standard Standard Standard Standard

Optional Optional Optional Optional

62~90 (17~32) 62~90 (17~32) 62~90 (17~32) 62~90 (17~32)

32~86 (0~30) 32~86 (0~30) 32~86 (0~30) 32~86 (0~30)

1/4 (6.35) 1/4 (6.35) 3/8” (9.52) 3/8” (9.52) 3/8 (9.52) 1/2 (12.7) 5/8” (15.9) 5/8” (15.9)

2.2 2.2 3.9 3.9 4 4 3 3

21 21 21 21

5 5 7 7

35.2 (895) 35.2 (895) 49.57 (1259) 49.57 (1259)

11.7 (298) 11.7 (298) 14.25 (362) 14.25 (362)

9.8 (248) 9.8 (248) 11.10 (282) 11.10 (282)

37.48 (17) 37.48 (17) 43.4 (19.7) 43.4 (19.7) 4 4 4 4

144/245/295/345 168/252/306/357 261/389/528/926 359/470/583/926

29/35.5/41.5/45.6 29/35.5/41.5/46.8 35.1/40.8/46.1/55.9 36.1/43.3/46.4/56.5

21.98 (6.7) 22.97 (7) 28.80 (8.7) 31.66 (9.65)

Pint/h

(L/h)

2.11 (1.0) 2.53 (1.2) 3.8 (1.8) 5.0 (2.39)

1 (25.4) 1 (25.4) 1 (25.4) 1 (25.4)

*Performance may vary based on the compatible outdoor units. See respective pages for performance data.

SM619PHA-03 Specifications subject to change without notice. 3

Page 4

DIMENSIONS

Piping

Drain Hose

Ø0.625"(16) L=25.20"(640)

Pipe hole

Units: Inch (mm)

Sizes 9K and 12K

Height In. (mm) 11.7 (298) 11.7 (298)

Width In. (mm) 35.2 (895) 35.2 (895) Depth In. (mm) 9.8 (248) 9.8 (248)

Weight-Net Lbs (kg) 37.48 (17) 37.48 (17)

Table 3 — Dimension Sizes 09K and 12K

HIGH WALL UNIT SIZE 9K 12K

Voltage (208/230V) (208/230V)

Fig. 1 — Sizes 9K and 12K

NOTE: Drain adapter included with the indoor unit to allow the use of a 3/4 in. PVC Schedule 40 pipe where the actual

outside diameter is 1.05 in.

4 Specifications subject to change without notice. SM619PHA-03

Page 5

Sizes 18K and 24K

Piping

Drain Hose

HIGH WALL UNIT SIZE 18K 24K

Height In. (mm) 14.25 (362) 14.25 (362)

Width In. (mm) 49.57 (1259) 49.57 (1259) Depth In. (mm) 11.10 (282) 11.10 (282)

Weight-Net Lbs (kg) 43.4 (19.7) 43.4 (19.7)

Table 4 — Dimension Sizes 18K and 24K

Voltage (208/230V) (208/230V)

Fig. 2 — Sizes 18K and 24K

SM619PHA-03 Specifications subject to change without notice. 5

Page 6

CLEARANCES

4.75 in (12 cm) min.

6 ft

(1.8m)

CEILING

FLOOR

5.9in. (15cm) min.

4.75 in (12 cm) min.

Fig. 3 — Indoor Unit Clearances

NOTE: The top clearance recommended for proper return airflow is 5.9 in (15cm). Reduction of this clearance may

decrease the performance of these units. This may be reduced to 3.2 in (80mm) as long as the right and left clearances are achieved.

6 Specifications subject to change without notice. SM619PHA-03

Page 7

ELECTRICAL DATA

HIGH WALL UNIT SIZE

Heat Pump Models

12K 0.34 0.027 18K 0.5 0.082 24K 0.5 0.082

WIRING

Table 5 — Electrical Data

INDOOR FAN MAX FUSE CB AMP

V-Ph-Hz FLA HP

0.34 0.027

208/230-1-60

Refer to outdoor unit installation instructions –

Indoor unit powered by the outdoor unit

All wires must be sized per NEC (National Electrical Code) or CEC (Canadian Electrical Code) and local codes. Use the Electrical Data table MCA (minimum circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively.

Per the caution note, only stranded copper conductors with a 600 volt insulation rating wire must be used.

Recommended Connection Method for Power and Communication Wiring:

The main power is supplied to the outdoor unit. The field supplied 14/3 stranded wire with ground with a 600 volt insulation rating, power/communication wiring from the outdoor unit to indoor unit

consists of four (4) wires and provides the power for the indoor unit.

Two wires are line voltage AC power, one is communication wiring (S) and the other is a ground wire. Wiring between the indoor and outdoor unit is polarity sensitive. The use of BX wire is NOT recommended.

If installed in a high Electromagnetic field (EMF) area and communication issues exists, a 14/2 stranded shielded wire can be used to replace L2 and (S) between the outdoor unit and indoor unit landing the shield onto ground in the outdoor unit only.

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Wires should be sized based on NEC and local codes.

CAUTION

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation. Be sure to comply with local codes while running wire from the indoor unit to the outdoor unit. Every wire must be connected firmly. Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Ensure all wiring is tightly connected. No wire should touch the refrigerant tubing, compressor or any moving parts. Disconnecting means must be provided and shall be located within sight and readily accessible from the air conditioner. Connecting cable with conduit shall be routed through the hole in the conduit panel.

SM619PHA-03 Specifications subject to change without notice. 7

Page 8

CONNECTION DIAGRAM

L1 L2

208/230-1-60

Main Power Supply

CONNECTING CABLE OUTDOOR TO INDOOR

Indoor Unit Power Supply

208/230-1-60

Indoor Signal High Voltage

GND

Ground

Power to Indoor Unit

Indoor Signal High Voltage

208/230-1-60 FIELD POWER SUPPLY

GND

208/230-1-60

208-230V Indoor Unit 208-230V Outdoor Unit

NOTES:

1. Do not use thermostat wire for any connection between the indoor and outdoor units.

2. All connections between the indoor and outdoor units must be as shown in Figure 4. The connections are polarity sensitive and improper wiring will result in a fault code.

Fig. 4 — 208-230V

8 Specifications subject to change without notice. SM619PHA-03

Page 9

WIRING DIAGRAM

PIPE TEMPERATURE SENSOR

YELLOW

RED

CN20

SWING MOTOR2

INDOOR FAN

CN3

N-IN

CN5

CN6

RY1

L-OUT

L-IN

BLUE(BLACK)

DISPLAY BOARD

CN10

MULTI-FUNCTION CONTROL BOARD

CN3

MAIN BOARD

CN2

CN4

CN1

CN40

CN43

CN32

CN42

CN41

CN45

CN46

X Y

12V/5V

To 485 Wire-controller

To Remote Switch

To Remote Alarm

- - - element is optional, the actual

shape shall prevail.

This symbol indicates the

INDOOR UNIT

OUTDOOR UNIT

ROOM TEMPERATURE SENSOR

SWING MOTOR3

CN8

CN5

CN6

Motion Sensor

Humidity Sensor

Wi-Fi

Earth Ground

CN1 & CN1A

+12V &

GND

Display

Vertical Horizontal

DC - Fan

P1_1

Indoor Wiring Diagram

Sizes 09K to 12K

CODE PART NAME

CN 10 Display board port DC 12V

CN 6 Output DC 5V pipe sensor

CN 8 Output DC12V,Swing motor

CN 20 Output DC12V,Swing motor

CN 3 Output DC 310V,fan motor

P1_1 Earth Ground

L-IN Power Voltage: AC 208-230V

N-IN Power Voltage: AC 208-230V

CN 5 Output: DC 0-24V Communication port to outdoor

CN 32 Output: DC 12V function board

CN1

CN 3 Output: DC 5V WI-FI controller (optional)

CN 2 Output: DC 5V Wire controller (optional)

CN 6 Output: DC 3.3V Infrared sensor (optional)

CN 5 Output: DC 5V Humidity sensor

CN 4 Output: DC5V Room temperature sensor (optional)

CN42 & CN41 Output: DC 5V To CCM Comm.Bus or 485 Wire-controller

CN 40 Input: DC 5V Connect to display board

CN 43 Input: DC 12V Connect to main board

CN 46 Output: DC 5V To Remote Switch

SM619PHA-03 Specifications subject to change without notice. 9

Input: DC 12V 4 wires connect to main board 3 wires connect to multi-function control board

Fig. 5 — Wiring Diagram - Sizes 09K and 12K

MAIN BOARD

DISPLAY BOARD

MULTI-FUNCTION CONTROL BOARD

Page 10

Sizes 18K to 24K

CN11

L-IN

CN 2

INDOOR UNIT

To Remote Switch

To CCM Comm.Bus or

OPTIONAL

Wire Controller

485 Wire-controller

Fig. 6 — Wiring Diagram - Sizes 18K and 24K

CODE PART NAME

MAIN BOARD

S (Cn16) Output:0-24VDC Communication port to outdoor

N(CN11) I nput:230VAC High Voltage N line from outdoor

L-IN (CN2) Input:230VAC High Voltage L line from outdoor

CN 6 Output:230VAC High Voltage Heater port (optional)

CN 12 Output:230V High Voltage Ion port (optional)

CN 4 Output:310VDC High Voltage Indoor DC fan

P_1 Output:0V Ground line welding on PCB

CN 5 Output:12VDC Swing motor 1

CN 14 Output:12VDC Swing motor2 (optional)

CN 43 Output:0-5VDC Micro switch (optional)

CN 44 Output:12VDC Plasma port (optional)

CN 8 Output:12VDC Room temperature sensor (optional)

CN 9 Output:12VDC Pipe temperature sensor

CN10A(CN10) Output:5VDC Connect to display board

DISPLAY BOARD

CN 1

CN 3 Output:5VDC Wi-Fi controller (optional)

CN 2 Output:5VDC Wire controller (optional)

CN 6 Output:3.3VDC Infrared sensor (operational)

CN 5 Output:5VDC Humidity sensor

CN 4 Output:12VDC Room temperature sensor (optional)

CN42&CN41 Output:5VDC To CCM Comm. Bus or 485 Wire-controller

CN40 Input:5VDC Connect to display board

CN 46 Output:5VDC To Remote Switch

10 Specifications subject to change without notice. SM619PHA-03

Input:5VDC 4 wires connect to main board 3 wires connect to multi-function control board

MULTI-FUNCTION CONTROL BOARD

Page 11

FAN AND MOTOR SPECIFICATIONS

LIQUID SIDE

GAS SIDE

HEAT EXCHANGE (EVAPORATOR)

HEAT EXCHANGE (CONDENSER)

COMPRESSOR

ïWAY VALV E

ïWAY VALV E

ïWAY VALV E

COOLING

HEATING

T2 Evaporator temp. sensor

T1 Room temp. sensor

ACCUMULATOR

CHECK VALVE (Heating Model only)

CAPILLARY TUBE

Table 6 — Fan and Motor Specifications

HIGH WALL UNIT SIZE 9K 12K 18K 24K

(208/230V) (208/230V) (208/230V) (208/230V)

Material glass fiber+AS glass fiber+AS glass fiber+AS glass fiber+AS

HIGH WALL FAN

HIGH WALL

FAN MOTOR

Type GL-108*670-IN GL-108*670-IN GL-118*955-I GL-118*955-I

Diameter In (mm) 4.25 (108) 4.25 (108) 4.65（118） 4.65（118）

Height In (mm) 26.38 (670) 26.38 (670) 37.6（955） 37.6（955）

Model ZKFP-20-8-6-7 ZKFP-20-8-6-7 ZKFP-58-8-1-5 ZKFP-58-8-1-5

Volts V 208/230 208/230 208/230 208/230

Phase 1 1 1 1

Hertz 60 60 60 60

FLA 0.034 0.034 0.5 0.5

Type DC DC DC DC

Insulation class E E E E

Safe class IPX0 IPX0 IP40 IP40

Input W 50 50 58 58

Output W 20 20 60 60

Range of current Amps 0.023 0.023 0.1~0.48 0.1~0.48

Rated current Amps 0.023±10% 0.023±10% 0.65 0.65

Capacitor µF No Capacitor

Rated HP HP 0.027 0.027 0.082 0.082

Speed rev/min 1000/850/650 1050/900/650 1700/1660/1350 1700/1660/1350

Rated RPM rev/min 1000 1050 1700 1700

Max. input W 70 70 125 125

REFRIGERATION CYCLE DIAGRAM

ROODTUOROODNI

SM619PHA-03 Specifications subject to change without notice. 11

Fig. 7 — Heat Pumps

Page 12

REFRIGERANT LINES

utdoor Unit

Gas Side

Liquid Side

Manifold Gage

500 microns

w pressure valve

High side valve

Low pressure hose

Charge hose

Vacuum

pump

Gas side valve

500

MINUTES

01234567

1000

1500

LEAK IN SYSTEM

VACUUM

TIGHT

TOO WET

TIGHT DRY SYSTEM

2000

MICRONS

2500

3000

3500

4000

4500

5000

CHECK FOR TIGHT, DRY SYSTEM

(IF IT HOLDS DEEP VACUUM)

EVACUATE TO 1500 MICRONS

EVACUATE TO 500 MICRONS MINIMUM (HOLD FOR 30 MINUTES)

RELEASE

CHARGE INTO SYSTEM BY OPENING

VALVES COMPLETELY

BREAK VACUUM WITH DRY NITROGEN TO 2 PSIG

EVACUATE TO 1000 MICRONS

BREAK VACUUM WITH DRY NITROGEN TO 2 PSIG

IMPORTANT: Both refrigerant lines must be insulated separately.

Table 2 on page 3 lists the pipe sizes for the indoor unit. Refer to the outdoor unit installation instructions for other allowed piping lengths and refrigerant information.

SYSTEM EVACUATION AND CHARGING

CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage or improper operation.

Never use the system compressor as a vacuum pump.

Refrigerant tubes and indoor coil should be evacuated using the recommended deep vacuum method of 500 microns. The alternate triple evacuation method may be used if the following procedure is followed. Always break a vacuum with dry nitrogen.

System Vacuum and Charge

Using Vacuum Pump

1. Completely tighten flare nuts on the line set at both the indoor and outdoor units. DO NOT open the service valves on the outdoor unit for the new installation or the replacement unit. Open the service valves on the outdoor unit if repairs have been made to the refrigerant sealed system. Connect the manifold gauge low pressure hose to the charge port of the gas side service valve (see Fig. 8).

2. Connect the charge hose to the vacuum pump.

3. Fully open the low pressure valve of manifold gage (see Fig. 9).

4. Start the vacuum pump.

5. Evacuate using deep vacuum or triple evacuation method.

6. After evacuation is complete, fully close the pressure valve side of manifold gage and stop the vacuum pump operation.

7. The factory charge contained in the outdoor unit is good for up to 25ft. (8 m) of line length. If vacuum is complete per Fig. 10 or 11, open service valves to release factory charge into the system.

8. Disconnect the charge hose from the charge connection of the gas side service valve.

9. Securely tighten the service valve caps.

Refrigerant

Indoor Uni

Deep Vacuum Method

The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this vacuum depth. The deep vacuum method is the most positive way of assuring a system is free of air and liquid water (see Fig. 10).

Fig. 10 — Deep Vacuum Graph

Triple Vacuum Method

The triple evacuation method should be used. Refer to Fig. 9 and proceed as follows:

1. Pump the system down to 1500 microns and allow the pump to continue operating for an additional 15 minutes.

2. Close the service valves and shut off the vacuum pump.

3. Connect a dry nitrogen cylinder and regulator to the system and break vacuum until the system reaches 2 psig.

4. Close the service valve and allow the system to stand for 1hr. During this time, the dry nitrogen can diffuse throughout the system absorbing moisture.

5. Pump the system down to 1000 microns.

6. Break the vacuum with dry nitrogen (2 psig).

7. Pump the system down to 500 microns.

8. Perform the hold test for 30 minutes.

Service Valve

Fig. 8 — Service Valve

12 Specifications subject to change without notice. SM619PHA-03

Fig. 9 — Manifold

Fig. 11 — Triple Evacuation Method

Final Tubing Check

IMPORTANT: Check to be certain factory tubing on both indoor and outdoor unit has not shifted during shipment. Ensure tubes are not rubbing against each other or any sheet metal. Pay close attention to feeder tubes, making sure wire ties on feeder tubes are secure and tight.

Page 13

OPERATION MODES AND FUNCTIONS

Abbreviation

Table 7 — Unit Element Abbreviations

ABBREVIATION ELEMENT

T1 Indoor room temperature T2 Evaporator Coil temperature T3 Condenser Coil temperature T4 Outdoor ambient temperature

Tsc Adjusted setting temperature

TP Compressor discharge temperature

Safety Features

Compressor Three-Minute Delay at Restart

Compressor functions are delayed for up to ten seconds upon the first start-up of the unit, and are delayed for up to three minutes upon subsequent unit restarts.

Automatic shutoff based on discharge temperature

If the compressor discharge temperature exceeds 226F (108C) for nine seconds, the compressor ceases operation.

Automatic shutoff based on fan speed

If the indoor fan speed registers below 300RPM or over 1500RPM for an extended period of time, the unit ceases operation and the corresponding error code is displayed on the indoor unit.

Inverter module protection

The inverter module has an automatic shutoff mechanism based on the unit’s current, voltage, and temperature. If automatic shutoff is initiated, the corresponding error code is displayed on the indoor unit and the unit ceases operation.

Display Function

Unit Display Functions

Fig. 12 — Unit Display Functions

Table 8 — Unit Function Displays

FUNCTION DISPLAY

Temperature Set temperature value Temperature (FAN and DRYING mode) Room temperature

Activation of Timer ON, Fresh, Swing, Turbo, or Silent

Cancellation of Timer OFF, Fresh, Swing, Turbo, or Silent

Defrost

Warming in heating mode

Self-clean

Heating in room temperature under 46°F (8°C) or 54°F (12°C)

Fresh (Not available on these systems)

ON(3S) OF(3S)

dF cF SC FP

Indoor fan delayed operation

• When the unit starts, the louver is automatically activated and the indoor fan will operate after a period of setting time or when the louver is in place.

• If the unit is in HEATING mode, the indoor fan is regulated by the anti-cold wind function.

Compressor Preheating

Preheating is automatically activated when the T4 sensor is lower than setting temperature.

Sensor redundancy and automatic shutoff

• If one temperature sensor malfunctions, the air conditioner continues operation and displays the corresponding error code, allowing for emergency use.

• When more than one temperature sensor malfunctions, the air conditioner ceases operation.

ECO function

Wi-Fi Control

The current operation power

(Not available on these systems)

SM619PHA-03 Specifications subject to change without notice. 13

Page 14

FAN Mode

When the FAN mode is activated:

• The outdoor fan and compressor stop.

• Temperature control is disabled and the indoor room temperature is displayed.

• The indoor fan speed can be set to 1%~100%, or AUTO.

• The louver operations are identical to those in COOLING mode.

• Auto fan: In FAN-ONLY mode, the AC operates the same as auto fan in the COOLING mode with the temperature set at 75F (24°C). (Tsc=75°F (24°C)).

COOLING Mode

Compressor control

Reach the configured temperature:

1. When the compressor runs continuously for less than 120 minutes.

• If the following conditions are satisfied, the compressor ceases operation.

• While the calculated frequency (fb) is less than the minimum limit frequency (FminC).

• While protective time is more than or equal to ten minutes.

• While T1 is lower than or equal to (Tsc-CDIFTEMP -1°F (-0.5°C)

NOTE: CDIFTEMP is the EEPROM setting parameter. It

is 4

°F (2°C).

2. When the compressor runs continuously for more than 120 minutes.

• If the following conditions are satisfied, the compressor ceases operation.

• When calculated frequency (fb) is less than minimum limit frequency (FminC).

• When protective time is more than or equal to ten minutes.

• When T1 is lower than or equal to (Tsc-CDIFTEMP).

NOTE: CDIFTEMP is the EEPROM setting parameter. It

is 4

°F (2°C).

3. If one of the following conditions is satisfied, regardless of time.

• Compressor running frequency is more than the test frequency.

• When the compressor running frequency is equal to the test frequency, T4 is more than 59°F (15°C) or no T4 or T4 fault.

• Change setting temperature

• Turbo or sleep function on/off

• Various frequency limit shutdown occurs

Indoor Fan Control

1. In the COOLING mode, the indoor fan operates continuously. The fan speed can be set to 1%-100%, or AUTO.

2. AUTO fan

• Descent Curve

• When T1-Tsc is lower than or equal to 6F (3.5C), fan speed

reduces to 80%;

• When T1-Tsc is lower than or equal to 2F (1C), fan speed

reduces to 60%;

• When T1-Tsc is lower than or equal to 1F (0.5C), fan speed

reduces to 40%;

• When T1-Tsc is lower than or equal to 0F (0C), fan speed

reduces to 20%;

• When T1-Tsc is lower than or equal to -1F (-0.5C), fan

speed reduces to 1%.

• Rise Curve

• When T1-Tsc is higher than 0F (0C), fan speed increases to

20%;

• When T1-Tsc is higher than 1F (0.5C), fan speed increases

to 40%;

• When T1-Tsc is higher than 2F (1C), fan speed increases to

60%;

• When T1-Tsc is higher than 3F (1.5C), fan speed increases

to 80%;

• When T1-Tsc is higher than 7F (4C), fan speed increases to

100%.

Outdoor Fan Control

• The outdoor unit runs at a different fan speed according to T4 and the compressor running frequency.

• For different outdoor units, the fan speeds are different.

Condenser Temperature Protection

When the condenser temperature exceeds a configured value, the compressor ceases operations.

Evaporator Temperature Protection

When the evaporator temperature drops below a configured value, the compressor and outdoor fan ceases operations.

NOTE: CDIFTEMP is EEPROM setting parameter. It is

°F (2°C).

14 Specifications subject to change without notice. SM619PHA-03

Page 15

HEATING Mode

“ ”

Compressor control

1. Reach the configured temperature:

• If the following conditions are satisfied, the compressor ceases operation.

• While the calculated frequency (fb) is less than the minimum

limit frequency (FminC).

• When the protective time is more than or equal to ten minutes.

• When T1 is higher than or equal to Tsc+HDIFTEMP2.

NOTE: HDIFTEMP2 is the EEPROM setting parameter.

It is 4

°F (2°C).

• If one of the following conditions is satisfied, regardless of

time.

• Compressor running frequency is more than test frequency.

• When the compressor running frequency is equal to the test

frequency, T4 is more than 59°F (15°C) or no T4 or T4 fault.

• Change the setting temperature.

• TURBO or SLEEP function on or off.

2. When the current is higher than the predefined safe value, the surge protection is activated, causing the compressor to cease

operations.

Indoor Fan Control

1. In the HEATING mode, the indoor fan operates continuously. The

fan speed can be set to 1%-100%, or muted.

2. AUTO fan

• Rise curve

• When T1-Tsc is higher than -3°F (-1.5°C), fan speed reduces

to 80%;

• When T1-Tsc is higher than 0°F (0°C), fan speed reduces to

60%;

• When T1-Tsc is higher than 1°F (0.5°C), fan speed reduces to

40%;

• When T1-Tsc is higher than 2°F (1°C), fan speed reduces to

20%.

•Descent curve

•When T1-Tsc is lower than or equal to 1°F (0.5°C), fan speed

increases to 20%;

• When T1-Tsc is lower than or equal to 0°F (0°C), fan speed

increases to 60%;

• When T1-Tsc is lower than or equal to -3°F (-1.5°C), fan

speed increases to 80%;

• When T1-Tsc is lower than or equal to -1.5°F (-3°C), fan

speed increases to 100%.

DEFROSTING Mode

• The unit enters defrosting mode according to changes in the temperature value of T3, T4 as well as the compressor running time.

• In the DEFROSTING mode, the compressor continues to run, the indoor and outdoor motor will cease operation, the defrost light of the indoor unit will turn on, and the symbol appears.

• If any one of the following conditions is satisfied, defrosting ends and the machine switches to the normal HEATING mode:

• T3 rises above TCDE1C.

• T3 maintained above TCDE2C for 80 seconds.

• Unit runs for 15 minutes consecutively in the DEFROSTING mode.

Evaporator Temperature Protection

• Off: Compressor stops.

• Decrease: Decrease the running frequency to the lower level per 20 seconds.

• Hold: Keep the current frequency.

• Resume: No limitation for frequency.

AUTO Mode

• This mode can be selected with the remote controller and the

setting temperature can be changed between 61°F~86°F (16°C~30°C).

• In the AUTO mode, the machine selects the COOLING,

HEATING, AUTO-DRYING or FAN-ONLY mode on the basis of T1,Ts, T4 and relative humidity.

• If the setting temperature is modified, the machine selects a new

running function.

DRY Mode

In the DRY mode, the air conditioner operates the same as auto fan in the COOLING mode.

1. Mute function is active.

• All protections are activated and operate the same as they do that in COOLING mode.

2. Low Room Temperature Protection

• If the room temperature is lower than 50°F (10°C), the compressor ceases operations and does not resume until the room temperature exceeds 54°F (12°C).

Outdoor Fan Control

•The outdoor unit runs at a different fan speed according to T4 and compressor running frequency.

• For different outdoor units, the fan speeds differ.

SM619PHA-03 Specifications subject to change without notice. 15

Page 16

Forced Operation Function

• Forced COOLING Mode The compressor and outdoor fan continues to run and the indoor

fan runs at rated speed. After running for 30 minutes, the air conditioner switches to AUTO mode with a preset temperature of 75°F (24°C).

• Forced AUTO Mode: Forced auto mode operates the same as normal AUTO mode

with a preset temperature of 75°F (24°C).

•The unit exits the forced operation when it receives the following signals:

• Switch on

• Switch off

• Timer on

• Timer off

• Changes in:

• Mode

• Fan Speed

• Setting Temperature

Timer Function

• The Timing range is 24 hours.

• Timer on. The machine turns on automatically when reaching the setting time.

• Timer off. The machine turns off automatically when reaching the setting time.

• Timer on/off. The machine turns on automatically when reaching the setting “on” time, and then turns off automatically when reaching the setting “off” time.

• Timer off/on. The machine turns off automatically when reaching the setting “off” time, and then turns on automatically when reaching the setting “on” time.

• The timer function will not change the AC current operation mode. Suppose the AC is off now, it will not start up first after setting the “timer off” function. And when reaching the setting time, the timer LED will be off and the AC running mode has not been changed.

• The setting time is relative time.

• The AC will quit the timer function when it has malfunction.

Auto-Restart Function

• The indoor unit has an auto-restart module that allows the unit to restart automatically. The module automatically stores the current settings and, in the case of a sudden power failure, will restore those setting automatically within 3 minutes after power returns.

• If there is a power failure while the unit is running, the compressor starts 3 minutes after the unit restarts. If the unit was already off before the power failure, the unit stands by.

46°F (8°C) Heating

In the HEATING mode, the temperature can be set to as low as 46°F (8°C), preventing the indoor area from freezing if unoccupied during severe cold weather.

ECO Function

• Used to enter the energy efficient mode.

•Under the COOLING mode, press ECO, the remote controller adjusts the temperature automatically to 75°F (24°C), AUTO fan speed to save energy (however only if the set temperature is less than 75°F (24°C). If the set temperature is more than 75°F (24°C) and 86°F (30°C), press ECO, the fan speed will change to AUTO, the set temperature will remain unchanged.

• When AC receives signals, such as switch off, Turbo operation, Silence operation, Self Clean operation, Forced COOLING operation, mode setting, SLEEPING mode, or adjusting the set temperature to less than 75°F (24°C), it will exit the ECO operation.

• Operation time in ECO mode is 8 hours. After 8 hours the air conditioner exits this mode.

• If there is a malfunctioning temperature sensor in, the air conditioner will exit ECO mode.

• The indoor fan runs at auto fan when it enters the ECO mode. The setting temperature and setting fan speed can be changed with the remote controller.

Self Clean

• Press “Self Clean” when the unit is in the COOLING or DRYING mode, the indoor unit runs at the low fan speed for 16

minutes then turn off.

• Self Clean keeps the indoor unit dry and prevents mold growth.

SLEEP Function

• The SLEEP function is available in COOLING, HEATING, or AUTO modes.

• The operational process for sleep mode is as follows:

•When cooling, the temperature rises 2°F (1°C) (to not higher than 86°F (30°C) every hour. After 2 hours, the temperature stops rising and the indoor fan is fixed at low speed.

•When heating, the temperature decreases 2°F (1°C) (to not lower than 61°F (16°C)) every hour.

•After 2 hours, the temperature stops decreasing and the indoor fan is fixed at low speed. Anti-cold wind function takes priority.

• The operating time for the SLEEP mode is 8 hours, after which, the unit exits this mode and turns off.

• The timer setting is available in this mode.

Follow Me

• If you press “Follow Me” on the remote controller, the indoor unit will beep. This indicates the “Follow Me” function is active.

• Once active, the remote controller will send a signal every 3 minutes, with no beeps. The unit automatically sets the temperature according to the measurements from the remote controller.

• The unit will only change modes if the information from the remote controller makes it necessary, not from the unit’s temperature setting.

• If the unit does not receive a signal for 7 minutes or you press “Follow Me”, the function turns off. The unit regulates temperature based on its own sensor and settings.

16 Specifications subject to change without notice. SM619PHA-03

Page 17

Silence

Press SILENCE on the remote controller to enable the SILENCE function. While this function is active, the indoor unit runs at faint

breeze (1% fan speed), which reduces noise to the lowest possible level.

Occupancy Sensor (Sizes 09K-12K)

With the built-in infrared sensor, the indoor unit detects human movement. The compressor operates in a low frequency if you leave the room for 30 minutes. The compressor operates in a lower frequency if you leave the room for 120 minutes, and resumes automatically when you come back, which helps save energy.

Table 9 — Information Codes

DISPLAYED CODE EXPLANATION ADDITIONAL NOTES

T1 T1 T1 temperature

T2 T2 T2 temperature

T3 T3 T3 temperature

T4 T4 T4 temperature

TP TP TP temperature

Targeted Frequency FT Targeted Frequency

Actual Frequency TR Actual Frequency

Compressor Current dL N/A

Outdoor AC Voltage UO N/A

Indoor capacity test Sn N/A

Reserve -- Running mode

Outdoor Fan Speed Pr Outdoor fan speed

EXV opening angle LR EXV opening angle

Indoor fan speed IR Indoor fan speed

Indoor humidity HU N/A

Adjusted setting temperature TT N/A

Indoor dust concentrations DT N/A

WIFI signal strength IF N/A

GA algorithm frequency OT N/A

Information Inquiry

To enter information inquiry status, complete the following procedure within ten seconds:

• Press LED 3 times.

• Press SWING 3 times. If successful, you will hear beeps for two seconds.

• Use LED and SWING to cycle through the information displayed.

• Press LED to display the next code in the sequence.

• Press SWING to display the previous code.

Table 9 displays the information codes. The screen displays the code for two seconds, then the information for 25 seconds.

SM619PHA-03 Specifications subject to change without notice. 17

Page 18

TROUBLESHOOTING

Electrolytic Capacitors

Safety

WARNING

UNIT DAMAGE HAZARD

Electricity remains in capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting.

(HIGH VOLTAGE! CAUTION!)

Fig. 13 — Electrolytic Capacitors

For other models, please connect discharge resistance (approximately 100Ù 40W) or a soldering iron (plug) between the +, - terminals of the electrolytic capacitor on the other side of the outdoor PCB.

Fig. 14 — Discharge Position

NOTE: Fig. 14 is for reference only. Actual appearances may vary.

18 Specifications subject to change without notice. SM619PHA-03

Page 19

TROUBLESHOOTING (continued)

Error Display (Indoor Unit)

When the indoor unit encounters a recognized error, the indicator light flashes in a corresponding series, the timer display may turn on or begin flashing, and an error code displays. These error codes are described in Table 10.

Table 10 — Error Codes

DISPLAY ERROR INFORMATION SOLUTION

E0/EA Indoor unit EEPROM parameter error Page 27

E1 Indoor / outdoor units communication error Pages 28 - 29

E2 Zero crossing detection error diagnosis and solution Page 30

E3 The indoor fan speed is operating outside of the normal range Page 31

E4 Indoor room temperature sensor T1 is in open circuit or has short circuited Page 37

E5 Evaporator coil temperature sensor T2 is in open circuit or has short circuited Page 37

EB Communication error between the indoor PCB and display board Page 38

EF Occupancy Sensor module error Page 33

F0 Overload current protection Page 39

F1 Outdoor ambient temperature sensor T4 open circuit or short circuit Page 37

F2 Condenser coil temperature sensor T3 is in open circuit or has short circuited Page 37

F3 Compressor discharge temperature sensor TP open circuit or short circuit Page 37

F4 Outdoor unit EEPROM parameter error Page 27

F5 The outdoor fan speed is operating outside of the normal range Page 31

P0 IPM malfunction or IGBT over-strong current protection Page 40

P1 Over voltage or over low voltage protection Page 34

P2 High temperature protection of IPM module Page 35

P3 Outdoor ambient temperature is too low

P4 Inverter compressor drive error Page 36

For other codes

The display board may show a garbled code or a code undefined by the service manual. Ensure that this code is not a temperature reading.

Troubleshooting

Test the indoor unit using the remote control. If the unit display is working however will not respond to the remote, the indoor PCB needs to be replaced. If there is no display after pressing LED and the unit responds, the display board needs to be replaced.

SM619PHA-03 Specifications subject to change without notice. 19

Page 20

ERROR DIAGNOSIS AND TROUBLESHOOTING WITHOUT ERROR CODE

WARNING

UNIT DAMAGE HAZARD

Be sure to turn off unit before any maintenance to prevent damage or injury.

Table 11 — Remote Maintenance

Remote

Maintenance

Possible causes

of trouble

Unit will not start

Operation is

erratic,

unpredictable or

unit is

unresponsive

Cannot set

desired temp.

Unit is on

but the wind is

not cold (hot) Unit runs, but

shortly stops

The unit starts up

and stops often

Unit runs

continuously

however

insufficient

cooling

(heating)

Cool can not

change to heat

Unit is noisy

Unit emits

bad odor

Test method/

remedy

Power failure

Test voltage

The main

power tripped

☆ ☆ ☆ ☆

Close the

power switch

Electrical Circuit Refrigerant Circuit Others

Loose

connections

Inspect

connections

- tighten

Faulty

transformer

Change the transformer

The setting

The voltage is

too high or

Test voltage

The remote

too low

control is

powered off

☆ ☆ ☆

☆ ☆ ☆ ☆

Replace the

battery of the

remote control

Broken remote control

☆ ☆

Replace

remote control

Dirty

condenser

air filter

☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆

☆

Clean

replace

fins

Clean

higher/lower

setting temp.

The ambient

temp is

temp. is too

high/low when

than the

the mode is

room's (cooling/ heating)

Adjust the

cooling/ heating

☆ ☆ ☆

Turn the

AC later

Fan mode

Adjust to

Cool mode

SILENCE function is

activated (optional function)

Turn off

SILENCE

function.

Frosting and

defrosting frequently

Turn the AC later

Heavy load

condition

Check the

heat load

Interference

Loose hold down bolts

and/or screws

Tighten bolts

or screws

Not air tight

☆ ☆

Close all

windows and

doors

Air inlet or outlet of either unit is blocked

Remove the

obstacles

from cell

phones

towers and

remote

boosters

☆

Reconnect the

power or

press ON/ OFF button on remote control

to restart

Shipping

plates

remained

attached

Remove

them

20 Specifications subject to change without notice. SM619PHA-03

Page 21

ERROR DIAGNOSIS AND TROUBLESHOOTING WITHOUT ERROR CODE (continued)

Table 12 — Field Maintenance

Field

Maintenance

Possible

causes

of trouble

Unit will not start

Compressor will

not start however

the fan runs

Compressor and

condenser

(outdoor) fan will

not start

Evaporator

(indoor)

fan will not start

Condenser

(outdoor) fan will

not start

Unit runs but shortly stops

Compress or short

cycles due to

overload

High discharge

pressure

Low discharge

pressure

High suction

pressure

Low suction

pressure

Unit runs

continuously but

insufficient cooling

Too cool

Compressor is

noisy

Horizontal louver

can not revolve

Test method /

remedy

Power failure

☆ ☆

Test voltage

Blown fuse

or varistor

Inspect fuse

type & size

Loose

connections

☆ ☆ ☆ ☆

☆ ☆ ☆

Inspect

connections -

tighten

Shorted or

broken wires

Test circuits

with tester

Safety device

opens

☆ ☆ ☆ ☆ ☆

☆ ☆ ☆

☆ ☆ ☆ ☆

☆ ☆ ☆ ☆ ☆

Test continuity

of safety

device

Faulty thermostat/ room temp

sensor

Test continuity of thermostat /

sensor &

wiring

Wrong setting place of temp

☆ ☆

Place the temp. sensor at the central

of air in- let

sensor

grille

Electrical Circuit

Faulty

transformer

Check control

circuit with

tester

Shorted or

open capacitor

Check

capacitor with

tester

Faulty

magnetic

contact for

compressor

☆ ☆

Test continuity

of coil & contacts

Faulty

magnetic

contact for fan

Test continuity

of coil & contacts

Low voltage

Test voltage

Faulty

stepping motor

Replace the

stepping motor

Shorted or

grounded

compressor

Check

resistance with

Megger tester

Shorted or

grounded fan

motor

Check

resistance with

Megger tester

SM619PHA-03 Specifications subject to change without notice. 21

Page 22

ERROR DIAGNOSIS AND TROUBLESHOOTING WITHOUT ERROR CODE (continued)

Table 13 — Field Maintenance

Field Maintenance Refrigerant Circuit

Possible causes

of trouble

Unit will not start

Compressor will not

start however the

fan runs

Compressor and

condenser (outdoor)

fan will not start

Evaporator (indoor)

fan will not start

Condenser (outdoor) fan will not

start

Unit runs but shortly stops

Compress or short

cycles due to

overload

High discharge

pressure

Low discharge

pressure

High suction

pressure

Low suction

pressure

Unit runs

continuously but

insufficient cooling

Too cool

Compressor is noisy

Horizontal louver

can not revolve

Test method /

remedy

Compressor

stuck

☆

Replace the

compressor

Insufficient

Refrigerant

Shortage

Leak test

Restricted

liquid line

☆ ☆ ☆ ☆ ☆ ☆

☆ ☆ ☆

☆ ☆

☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆

☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆

Replace the

restricted

part

Dry air filter

Clean or

replace

Dirty

evaporator

coil

Clean coil Check fan

air

through

evaporator

coil

Refrigerant

overcharge

Change charged

refrigerant

volume

Dirty or partially blocked

condenser

☆ ☆ ☆ ☆ ☆ ☆

☆ ☆ ☆

☆ ☆

condenser or remove

obstacle

Clean

Air or non-

condensible

gas in

refrigerant

cycle

Purge,

evacuate

and

recharge

Short

cycling of

condensing

air

Remove

obstruction

to air flow

High temp.

condensing

medium

Remove

obstruction

in air or

water flow

Insufficient

condensing

medium

Remove

obstruction

in air or

water flow

Broken

compressor

internal

parts

Replace

compressor

Insufficient

compressor

Test

compressor

efficiency

Expansion

valve

obstructed

Replace

valve

Expansion

valve or capillary

tube closed

completely

Replace

valve

Leaking

power

element on

expansion

valve

Replace

valve

Power

installation

of feeler

bulb

Fix feeler

bulb

22 Specifications subject to change without notice. SM619PHA-03

Page 23

ERROR DIAGNOSIS AND TROUBLESHOOTING WITHOUT ERROR CODE (continued)

Table 14 — Field Maintenance

Field Maintenance Others

Possible causes

of trouble

Unit will not start

Compressor will not start

however the fan runs

Compressor and condenser

(outdoor) fan will not start

Evaporator (indoor) fan

will not start

Condenser (outdoor) fan will not

Unit runs but shortly stops

Compress or short cycles

High discharge pressure

Low discharge pressure

start

due to overload

High suction pressure

Low suction pressure

Unit runs continuously but insufficient cooling

Too cool

Compressor is noisy

Horizontal louver

can not revolve

Heavy load condition Loosen hold down bolts and/or screws Shipping plates remain attached Poor choices of capacity

☆

☆ ☆

☆ ☆ ☆

Contact of piping with other piping or

external plate

Test method / remedy Check heat load Tighten bolts or screws Remove them

Choose AC of larger capacity or add

the number of units

Fix piping as not to touch each

other or external pipe

SM619PHA-03 Specifications subject to change without notice. 23

Page 24

QUICK MAINTENANCE BY ERROR CODE

If you do not have the time to test whether specific parts are faulty, you can directly change the required parts according the error code. You can find the parts to replace by error code in Tables 15 and 16.

Table 15 — Error Codes

Part Requiring

Replacement

E0 EA E1 E3 E4 E5 EB EF F0

ERROR CODE

Indoor PCB

Outdoor PCB x x

Display Board x x x x x x x x

Reactor x x

Indoor fan motor x x x

Outdoor fan motor x x x X x x x x x

Temperature sensor x x x x

T2 Sensor x x x x x x x x x

Additional refrigerant x x x x x x x x x

Compressor x x x x x x x x

IPM board x x x x x x x x x

Outdoor unit x x x x x x x x

Occupancy Sensor x x x x x x x  x

       x x

 x x x x x 

 x x x x x x

 x x x x x

  x x x

Table 16 — Error Codes

Part Requiring

Replacement

F1 F2 F3 F4 F5 P0 P1 P2 P4

Error Code



Indoor PCB x x x x x x x x x

Outdoor PCB

Display Board x x x x x x x x x

Reactor x x x x x x

Indoor fan motor x x x x x x x x x

Outdoor fan motor x x x x

Temperature sensor

T2 Sensor x x x x x x x x x

Additional

refrigerant

Compressor x x x x x

IPM board x x x x x   x 

Outdoor unit x x x x x x x x x

Occupancy Sensor x x x x x x x x x

        

 x x

 x x x x

   x x x X x x

x x x x x x x x x

 x x 

24 Specifications subject to change without notice. SM619PHA-03

Page 25

TROUBLESHOOTING BY ERROR CODE

Common Check Procedures

Temperature Sensor Check

Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp. (T1) sensor, Indoor coil temp. (T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(Tp) sensor. Measure the resistance value of each winding by using the multi-meter.

Compressor Checking

Measure the resistance value of each winding by using the tester.

Fig. 15 — Compressor Checking

Table 17 — Compressor Checking

POSITION RESISTANCE VALUE

ATM115D43UFZ2

Blue - Red

1.87

(20°C/68°FX)Blue - Black

Red - Blue

SM619PHA-03 Specifications subject to change without notice. 25

Page 26

IPM Continuity Check

Turn off the power. Allow the large capacity electrolytic capacitors to discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N.

Table 18 — IPM Continuity Check

Digital Tester

(+) Red (-) Black

Normal Resistance

Value

N U

U V

V W

W (+) Red

∞

(Several M

Digital Tester

(+) Red (-) Black

Normal Resistance

Value

∞

(Several M

26 Specifications subject to change without notice. SM619PHA-03

Page 27

DIAGNOSIS AND SOLUTION

The unit is operating normally.

YES

Is it plugged correctly?

Correct the connection.

Replace the indoor /outdoor

main PCB .

Shut o the power supply.

Wait 2 minutes then turn back on.

Does the error code still appear?

If the EEPROM chip is welded on the

main PCB, replace the main PCB.

Otherwise, check if the EEPROM chip

is plugged into the main PCB.

E0/F4/EA (EEPROM Parameter Error)

Description: Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.

Recommended parts to prepare:

• Indoor PCB

• Outdoor PCB

• Reactor

Troubleshooting and Repair:

Remarks:

The location of the EEPROM chip on the indoor and outdoor PCB is shown in Figures 16 and 17:

Fig. 16 —EEPROM Chip (Indoor Unit)

SM619PHA-03 Specifications subject to change without notice. 27

Fig. 17 —EEPROM Chip (Outdoor Unit)

Page 28

E1 (Indoor and Outdoor Unit Communication Error)

Does the problem remain? The unit is operating normally.NO

Measure Vs . ( Vs is the voltage between S and N on

the outdoor unit. Red pan-S, Black pan-N)

YES

Is the voltage moving

alternately between positive and

negative?

Is it normal?

YES

Is it normal?

YES

Is the error

resolved?

Check the indoor wiring

connections.

Is it normal?

YES

Is the error resolved?

The voltage moves alternately with

positive value.

The voltage is a

certain value.

Power o. Wait 2 minutes then power back on.

Check the outdoor wiring connection.

Check the reactor.

Replace the

reactor.

Replace the outdoor PCB.

Power on.

Replace the indoor PCB.

Replace the outdoor PCB.

Replace the indoor PCB.

Power on.

Description: The indoor unit has not received feedback from the outdoor unit for 150 seconds, four consecutive times.

Recommended parts to prepare:

• Indoor PCB

• Outdoor PCB

• Reactor

Troubleshooting and Repair:

28 Specifications subject to change without notice. SM619PHA-03

Page 29

E1 (Indoor and Outdoor Unit Communication Error) (continued)

Remarks:

• Use a multimeter to test the DC voltage between the outdoor unit’s 2 port and 3 port. The red pin of multimeter connects with the 2 port while the black pin is for 3 port.

• When the air conditioner is normal running, the voltage is moving alternately as positive values and negative values.

• If the outdoor unit has a malfunction, the voltage has always been the positive value.

• If the indoor unit has malfunction, the voltage is a fixed value.

Fig. 18 — Multimeter

• Use a multimeter to test the reactor resistance that does not connect with the capacitor.

• The normal value should be around zero ohm otherwise the reactor is malfunctioning.

Fig. 19 — Multimeter

SM619PHA-03 Specifications subject to change without notice. 29

Page 30

E2 (Zero crossing detection error diagnosis and solution)

Check the connections and

power supply.

Correct the connections. Power on the unit when the power supply is good.

Indoor main PCB is defective. Replace the indoor main PCB.

YES

Is it normal?

Description: When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal.

Recommended parts to prepare:

• Connection wires

• PCB

Troubleshooting and repair:

30 Specifications subject to change without notice. SM619PHA-03

Page 31

E3/F5 (Fan speed is operating outside of the Normal Range)

YES

Is it within normal parameters?

Replace the fan motor.

Does the problem exist? The unit is operating normally.NO

YES

Does it turn easily?

Find the cause of the problem and resolve.NO

Check the fan motor wiring.

YES

Is it improperly wired ? Ensure proper connections.

Measure the voltage for

the fan motor from the PCB.

YES

Replace the indoor /outdoor PCB.

Power o. Wait 2 minutes then restart.

Shut o the power supply.

Rotate the fan by hand.

Description: When the indoor fan speed maintains a low speed (ex. 300RPM) or a speed that’s too high (ex.1500RPM) for a certain time, the unit stops and the LED displays the failure (E3). When the outdoor fan speed registers below 200RPM or over 1500RPM for an extended period of time, the unit stops and the LED displays the failure (F5).

Recommended parts to prepare:

• Wiring

• Faulty fan assembly

• Faulty fan motor

• Faulty PCB

Troubleshooting and Repair:

SM619PHA-03 Specifications subject to change without notice. 31

Page 32

Index

1. Indoor or Outdoor DC Fan Motor (control chip is in the fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in the fan motor connector. If the value of the voltage is not in the range shown in Table 19, the PCB must has problems and need to be replaced.

DC motor voltage input and output (voltage: 220-240V~):

Table 19 — Voltage

NO. COLOR SIGNAL VOLTAGE

1 Red Vs/Vm 280V~380V

2 --- --- ---

3 Black GND 0V

4 White Vcc 14-18.5V

5 Yellow Vsp 0~5.6V

6 Blue FG 14-18.5V

Fig. 20 — Indoor DC Fan Motor

2. Outdoor DC Fan Motor (control chip is in outdoor PCB) Power on and check if the fan can run normally, if the fan can run normally, the PCB must have a problem and needs to be replaced, If the fan can not run normally, measure the resistance of each pin (two). If the resistance is not equal to each other, the fan motor must have a problem and needs to be replaced, otherwise the PCB must has problems and needs to be replaced.

Fig. 21 — Outdoor DC Fan Motor

3. Indoor AC Fan Motor Power on and set the unit running in FAN mode at the high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply) or 50V(115V power supply), the PCB must has problems and needs to be replaced.

Fig. 22 — Indoor AC Fan Motor

32 Specifications subject to change without notice. SM619PHA-03

Page 33

EF (Occupancy Sensor Module Error Diagnosis and Solution)

YES

Power o.

Wait 2 minutes then restart.

Is the unit still

displaying an error code?

The unit is operating as designed.

Check the Occupancy Sensor

module wiring.

Is it good?

Ensure proper connections.

Replace the

Occupancy Sensor module.

Description: If the Occupancy Sensor module malfunctions, the LED displays the failure.

Recommended parts to prepare:

• Occupancy Sensor

Troubleshooting and Repair:

SM619PHA-03 Specifications subject to change without notice. 33

Page 34

P1 (Over voltage or too low voltage protection diagnosis and solution)

Check the power supply.

Is it in working order ?

Check the connections and wires.

YES

Are they in working order ?

Ensure proper connections or

replace the wires.

Power on and measure the

voltage between P and N.

YES

Replace the IPM board.NO

Check the reactor.

YES

Is it in working order?

Replace outdoor PCB.NO

Replace the reactor.

YES

Turn o the unit.

While the unit is in standby,

is the voltage between P and N around

DC 310V, 340V or 380V? On unit start up

is the unit in the 220V~400 range?

Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit.

Recommended parts to prepare:

• Power supply issues

• System leakage or blockage

• Faulty PCB

Troubleshooting and Repair:

34 Specifications subject to change without notice. SM619PHA-03

Page 35

P2 (High temperature protection of IPM module diagnosis and solution)

Check the fastening screws on the

PCB and IPM radiator.

Are they

fixed tightly?

Replace the outdoor

control PCB.

Tighten the screws and apply

silicon grease.

YES

Description: If the temperature of IPM module is higher than limited value, the LED displays this failure code.

Recommended parts to prepare:

• Faulty PCB

• Connection problems

Troubleshooting and Repair:

SM619PHA-03 Specifications subject to change without notice. 35

Page 36

P4 (Inverter compressor drive error diagnosis and solution)

Check the wiring between the

PCB and compressor.

Is it improperly wired ?

Ensure proper connections or replace

the wires and connectors.

YES

Check the IPM.

Is it functioning

properly?

Replace the IPM board or replace the outdoor PCB.

Check the outdoor fan and

the outdoor unit ventilation.

YES

Is it functioning

properly?

Please refer to “Fan Speed

Malfunction” solution.

Check the compressor

resistance values.

YES

Are they within

acceptable parameters ?

Replace the compressor.NO

Replace the outdoor PCB.

YES

Description: If the temperature of IPM module is higher than limited value, the LED displays this failure code.

Recommended parts to prepare:

• Wiring mistake

• PM malfunction

• Outdoor fan assembly faulty

• Compressor malfunction

• Outdoor PCB faulty

Troubleshooting and Repair:

36 Specifications subject to change without notice. SM619PHA-03

Page 37

E4/E5/F1/F2/F3 (Open circuit or short circuit of temperature sensor diagnosis and solution)

Check the connection between

temperature sensor and PCB.

Replace indoor or outdoor PCB.

Is it within acceptable

parameters?

Is it properly wired ?

Ensure proper connections .

Measure the resistance value

of the sensor.

YES

Replace the sensor.NO

YES

Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure.

Recommended parts to prepare:

• Wiring mistake

• Faulty sensor

• Faulty PCB

Troubleshooting and Repair:

SM619PHA-03 Specifications subject to change without notice. 37

Fig. 23 —Multimeter

Page 38

Eb (Communication error between the Indoor PCB and Display Board)

Is it still displaying

the error code ?

The unit operates normally.NO

Check the wirings and

connection.

YES

Is it normal?

Correct the connection

or replace the wirings.

Replace the indoor main PCB.

YES

Is the problem solved?

Replace the display board.NO

The unit operates normally.

YES

Power o. Wait 2 minutes

then restart.

Description: Indoor PCB does not receive feedback from the display board.

Recommended parts to prepare:

• Wiring mistake

• PCB faulty

• Display board malfunction

Troubleshooting and Repair:

38 Specifications subject to change without notice. SM619PHA-03

Page 39

F0 (Overload current protection diagnosis and solution)

Check the power supply.

Do any exist?

Are they within acceptable

parameters?

Are they properly connected?

Is it in working order?

Replace the outdoor unit.

Is it in working order?

Check system for blockages .

YES

Stop the unit .

Clear the blockage.NO

Check the compressor resistance values.

YES

Replace the compressor.NO

Check the connections and wires.

YES

Ensure proper connections or

replace the wires.

Check the reactor.

YES

Replace outdoor PCB.

Description: An abnormal current rise is detected by checking the specified current detection circuit.

Recommended parts to prepare:

• Power supply problems

• System blockage

• Faulty PCB

• Wiring mistake

• Compressor malfunction

Troubleshooting and Repair:

SM619PHA-03 Specifications subject to change without notice. 39

Page 40

P0 (IPM malfunction or IGBT over-strong current protection diagnosis and solution)

Check the wiring between

PCB and compressor.

Does an error exist?

Ensure proper connections or

replace the wires and connectors.

YES

Check the IPM.

Is it in working order?

Replace the IPM board or replace the outdoor PCB.

Check the outdoor fan and the

outdoor unit ventilation.

YES

Is it in working order?

Refer to the “Fan Speed is Out of Control”

solution.

Check the compressor

resistance values.

YES

Are they within

acceptable parameters?

Replace the compressor.

Replace the outdoor PCB.

YES

Description: When the voltage signal the IPM sends to the compressor drive chip is abnormal, the display LED displays “P0” and the air conditioner turns off.

Recommended parts to prepare:

• Wiring mistake

• IPM malfunction

• Faulty outdoor fan assembly

• Compressor malfunction

• Faulty outdoor PCB

Troubleshooting and Repair:

40 Specifications subject to change without notice. SM619PHA-03

Page 41

DISASSEMBLY INSTRUCTIONS

noitartsullIerudecorP

1) Hold the front panel by the tabs on both sides and lift it.

2) Push up the bottom of the air ﬁlter while pressing the buttom of the unit, and then pull the air ﬁlter out (downwards).

Front Panel

Ta b

Filter

Indoor Unit Sizes 09K-12K (Front Panel)

SM619PHA-03 Specifications subject to change without notice. 41

Page 42

Indoor Unit Sizes 09K-12K (Front Panel) (continued)

noitartsullIerudecorP

3) Open the horizontal louver and push the hook towards the right to open.

4) Bend the horizontal louver lightly with both hands to loosen the hooks, then remove the horizontal louver.

Hook

Horizontal Louver

Hook

42 Specifications subject to change without notice. SM619PHA-03

Page 43

Indoor Unit Sizes 09K-12K (Front Panel) (continued)

noitartsullIerudecorP

Remove the screw (1) then remove the

electrical cover.

6) Disconnect the two connectors on the display board.

7) Slide the front panel side to side to release each axis.

8) Remove the screw (1) and rotate the display board clockwise. Next, remove the clips.

SM619PHA-03 Specifications subject to change without notice. 43

Page 44

Indoor Unit Sizes 09K-12K (Electrical Parts) (Anti-static gloves must be worn)

noitartsullIerudecorP

1) Cut the ribbon with a shear, then pull out the coil temperature sensor (T2).

2) Remove the screws (2) used for the ground connection.

3) Remove the screws (1 for the electronic cover and 1 for the terminal cover). Next, remove the electronic box cover and the terminal cover along the direction indicated in the image (on the right side) to remove it.

4) Disconnect the fan motor connector and the step motor.

Ribbon

Ground Screws

T2 Sensor

NOTE: Remove the front panel (refer to the front panel removal steps) before disassembling electrical parts.

44 Specifications subject to change without notice. SM619PHA-03

Page 45

Indoor Unit Sizes 09K-12K (Electrical Parts) (Anti-static gloves must be worn) (continued)

noitartsullIerudecorP

5) Disconnect the wires. Next, remove the electronic main box.

6) Pull out the electrical control box along the direction indicated in the image to remove it.

7) Each port connector is indicated in the image to the right.

Main Board

Electronic Box

Swing Motor

Pipe Temperature Sensor

Display Board

Indoor Fan Motor

Terminals

Ground Wire

SM619PHA-03 Specifications subject to change without notice. 45

Page 46

Indoor Unit Sizes 09K-12K (Evaporator)

noitartsullIerudecorP

1) Disassemble the pipe holder located at the rear of the unit.

2) Remove the screws (3) on the evaporator located on the ﬁxed plate.

3) Remove the screws (2) on the evaporator located at the base of the bearing side.

Pipe Holder

Screws

46 Specifications subject to change without notice. SM619PHA-03

Page 47

Indoor Unit Sizes 09K-12K (Evaporator) (continued)

noitartsullIerudecorP

4) Remove the screw (1) on the evaporator located at the top of the evaporator.

5) Remove the evaporator.

Evaporator

SM619PHA-03 Specifications subject to change without notice. 47

Page 48

Indoor Unit Sizes 09K-12K (Fan Motor and Fan)

noitartsullIerudecorP

1) Remove the screws (2) and remove the ﬁxing board of the fan motor.

2) Remove the bearing sleeve.

Screws

NOTE: Remove the front panel, electrical parts and evaporator (refer to front panel, electrical parts, and evaporator

removal steps) before disassembling fan motor and fan.

48 Specifications subject to change without notice. SM619PHA-03

Page 49

Indoor Unit Sizes 09K-12K (Fan Motor and Fan) (continued)

noitartsullIerudecorP

3) Remove the set screw.

4) Pull out the fan motor and fan assembly from the side.

Fixing Screw

noitartsullIerudecorP

1) Remove the screws (2), then remove the stepping motor.

Stepping Motor

Indoor Unit Sizes 09K-12K (Step Motor)

NOTE: Remove the front panel and electrical parts (refer to the front panel, electrical parts removal steps) before

disassembling the step motor.

SM619PHA-03 Specifications subject to change without notice. 49

Page 50

Indoor Unit Sizes 09K-12K (Occupancy Sensor)

noitartsullIerudecorP

1) Remove the screw (1), then remove the Occupancy Sensor.

Occupancy Sensor

NOTE: Remove the front panel and electrical parts (refer to the front panel, electrical parts, evaporator and fan motor

and fan removal steps) before disassembling the occupancy sensor.

50 Specifications subject to change without notice. SM619PHA-03

Page 51

Indoor Unit Sizes 18K-24K (Front Panel)

noitartsullIerudecorP

1) Hold the front panel by the tabs on both sides and lift it.

2) Push up the bottom of the air lter

(step 1), then pull it out downwards.

Front Panel

Ta b

SM619PHA-03 Specifications subject to change without notice. 51

Page 52

Indoor Unit Sizes 18K-24K (Front Panel) (continued)

3) Open the horizontal louver and push the hook towards the left to open it.

4) Bend the horizontal louver lightly with both hands to loosen the hooks, then remove the horizontal louver.

Horizontal Louver

Hook

noitartsullIerudecorP

52 Specifications subject to change without notice. SM619PHA-03

Page 53

Indoor Unit Sizes 18K-24K (Front Panel) (continued)

noitartsullIerudecorP

5) Pry the electrical cover with a screwdriver and rotate it towards the left, then remove it.

6) Disconnect the connector on the display board.

SM619PHA-03 Specifications subject to change without notice. 53

Page 54

Indoor Unit Sizes 18K-24K (Front Panel) (continued)

noitartsullIerudecorP

7) Slide the front panel side to side to release each axis.

8) Open the screw cap and then remove the screws (3).

54 Specifications subject to change without notice. SM619PHA-03

Page 55

Indoor Unit Sizes 18K-24K (Front Panel) (continued)

noitartsullIerudecorP

9) Release the hooks by hand.

10) Release the 5 hooks in the back.

11) Pull out the panel frame, while pushing the hook through the clearance between the panel frame and the heat exchanger.

SM619PHA-03 Specifications subject to change without notice. 55

Page 56

Indoor Unit Sizes 18K-24K (Front Panel) (continued)

noitartsullIerudecorP

12) Release the 5 hooks of the vertical blades, then pull the vertical blades toward the right and remove them.

13) Remove the display board’s screw (1).

14) Rotate the display board in the direction shown in the picture (on the right).

56 Specifications subject to change without notice. SM619PHA-03

Page 57

Indoor Unit Sizes 18K-24K (Electrical Parts) (Anti-static gloves must be worn)

noitartsullIerudecorP

1) Cut the ribbon with a shear, then pull out the coil temperature sensor (T2).

2) Remove the ﬁxing screw (1) on the electronic control box and two screws used for the ground connection.

3) An upward force is maintained until the electronic control box cover is removed.

Ribbon

T2 Sensor

Ground Screws

NOTE: Remove the front panel (refer to the front panel removal steps) before disassembling electrical parts.

SM619PHA-03 Specifications subject to change without notice. 57

Page 58

Indoor Unit Sizes 18K-24K (Electrical Parts) (Anti-static gloves must be worn) (continued)

noitartsullIerudecorP

4) Remove the ﬁxed devices from the connectors.

5) Disconnect the fan motor connectors, the step motor and the T2 sensor.

6) Open the left side plate of the electronic control box.

58 Specifications subject to change without notice. SM619PHA-03

Page 59

Indoor Unit Sizes 18K-24K (Electrical Parts) (Anti-static gloves must be worn) (continued)

noitartsullIerudecorP

7) Open the two clips on the front of the electric box.

8) Open the upper cover plate of the electronic control box.

SM619PHA-03 Specifications subject to change without notice. 59

Page 60

Indoor Unit Sizes 18K-24K (Electrical Parts) (Anti-static gloves must be worn) (continued)

noitartsullIerudecorP

9) Remove the screw (1) and open the 2 clips along the direction indicated in the image on the right side.

10) Pull out the electrical main board along the direction indicated in the image on the right.

Display board

Terminal (1L)

Terminal (W)

Terminal (S)

Pipe Temperature Sensor

Room Temperature Sensor

60 Specifications subject to change without notice. SM619PHA-03

Page 61

Indoor Unit Sizes 18K-24K (Evaporator)

noitartsullIerudecorP

1) Disassemble the pipe holder located at the rear of the unit.

2) Remove the screw (1) on the evaporator located at the ﬁxed plate.

SM619PHA-03 Specifications subject to change without notice. 61

Page 62

Indoor Unit Sizes 18K-24K (Evaporator) (continued)

noitartsullIerudecorP

3) Release the hook on the evaporator.

4) Remove the screw (1) on the evaporator

located at the ﬁxed plate.

5) Remove the evaporator.

62 Specifications subject to change without notice. SM619PHA-03

Page 63

Indoor Unit Sizes 18K-24K (Fan Motor and Fan)

noitartsullIerudecorP

1) Remove the screws (2) and remove the ﬁxing board of the fan motor.

2) Remove the bearing sleeve.

Screws

NOTE: Remove the front panel, electrical parts and evaporator (refer to front panel, electrical parts, and evaporator

removal steps) before disassembling fan motor and fan.

SM619PHA-03 Specifications subject to change without notice. 63

Page 64

Indoor Unit Sizes 18K-24K (Fan Motor and Fan) (continued)

noitartsullIerudecorP

3) Remove the set screw.

4) Pull out the fan motor and fan assembly from the side.

Fixing Screw

noitartsullIerudecorP

1) Remove the screws (2), then remove the stepping motor.

Stepping Motor

Indoor Unit Sizes 18K-24K (Step Motor)

NOTE: Remove the front panel and electrical parts (refer to the front panel, electrical parts removal steps) before

disassembling the step motor.

64 Specifications subject to change without notice. SM619PHA-03

Page 65

APPENDICES

Appendix 1

Table 20 — Temperature Sensor Resistance Value Table for T1, T2, T3, T4 (C--K)

°C °F K OHM °C °F K OHM °C °F K OHM °C ° F K OHM

-20 -4 115.266 20 68 12.6431 60 140 2.35774 100 212 0.62973

-19 -2 108.146 21 70 12.0561 61 142 2.27249 101 214 0.61148

-18 0 101.517 22 72 11.5 62 144 2.19073 102 216 0.59386

-17 1 96.3423 23 73 10.9731 63 145 2.11241 103 217 0.57683

-16 3 89.5865 24 75 10.4736 64 147 2.03732 104 219 0.56038

-15 5 84.219 25 77 10 65 149 1.96532 105 221 0.54448

-14 7 79.311 26 79 9.55074 66 151 1.89627 106 223 0.52912

-13 9 74.536 27 81 9.12445 67 153 1.83003 107 225 0.51426

-12 10 70.1698 28 82 8.71983 68 154 1.76647 108 226 0.49989

-11 12 66.0898 29 84 8.33566 69 156 1.70547 109 228 0.486

-10 14 62.2756 30 86 7.97078 70 158 1.64691 110 230 0.47256

-9 16 58.7079 31 88 7.62411 71 160 1.59068 111 232 0.45957

-8 18 56.3694 32 90 7.29464 72 162 1.53668 112 234 0.44699

-7 19 52.2438 33 91 6.98142 73 163 1.48481 113 235 0.43482

-6 21 49.3161 34 93 6.68355 74 165 1.43498 114 237 0.42304

-5 23 46.5725 35 95 6.40021 75 167 1.38703 115 239 0.41164

-4 25 44 36 97 6.13059 76 169 1.34105 116 241 0.4006

-3 27 41.5878 37 99 5.87359 77 171 1.29078 117 243 0.38991

-2 28 39.8239 38 100 5.62961 78 172 1.25423 118 244 0.37956

-1 30 37.1988 39 102 5.39689 79 174 1.2133 119 246 0.36954

0 32 35.2024 40 104 5.17519 80 176 1.17393 120 248 0.35982

1 34 33.3269 41 106 4.96392 81 178 1.13604 121 250 0.35042

2 36 31.5635 42 108 4.76253 82 180 1.09958 122 252 0.3413

3 37 29.9058 43 109 4.5705 83 181 1.06448 123 253 0.33246

4 39 28.3459 44 111 4.38736 84 183 1.03069 124 255 0.3239

5 41 26.8778 45 113 4.21263 85 185 0.99815 125 257 0.31559

6 43 25.4954 46 115 4.04589 86 187 0.96681 126 259 0.30754

7 45 24.1932 47 117 3.88673 87 189 0.93662 127 261 0.29974

8 46 22.5662 48 118 3.73476 88 190 0.90753 128 262 0.29216

9 48 21.8094 49 120 3.58962 89 192 0.8795 129 264 0.28482

10 50 20.7184 50 122 3.45097 90 194 0.85248 130 266 0.2777

11 52 19.6891 51 124 3.31847 91 196 0.82643 131 268 0.27078

12 54 18.7177 52 126 3.19183 92 198 0.80132 132 270 0.26408

13 55 17.8005 53 127 3.07075 93 199 0.77709 133 271 0.25757

14 57 16.9341 54 129 2.95896 94 201 0.75373 134 273 0.25125

15 59 16.1156 55 131 2.84421 95 203 0.73119 135 275 0.24512

16 61 15.3418 56 133 2.73823 96 205 0.70944 136 277 0.23916

17 63 14.6181 57 135 2.63682 97 207 0.68844 137 279 0.23338

18 64 13.918 58 136 2.53973 98 208 0.66818 138 280 0.22776

19 66 13.2631 59 138 2.44677 99 210 0.64862 139 282 0.22231

SM619PHA-03 Specifications subject to change without notice. 65

Page 66

Appendix 2

Table 21 — Temperature Sensor Resistance Value Table for TP (T5)

° C ° F K OHM ° C ° F K OHM ° C ° F K OHM ° C ° F K OHM

-20 -4 542.7 20 68 68.66 60 140 13.59 100 212 3.702

-19 -2 511.9 21 70 65.62 61 142 13.11 101 214 3.595

-18 0 483 22 72 62.73 62 144 12.65 102 216 3.492

-17 1 455.9 23 73 59.98 63 145 12.21 103 217 3.392

-16 3 430.5 24 75 57.37 64 147 11.79 104 219 3.296

-15 5 406.7 25 77 54.89 65 149 11.38 105 221 3.203

-14 7 384.3 26 79 52.53 66 151 10.99 106 223 3.113

-13 9 363.3 27 81 50.28 67 153 10.61 107 225 3.025

-12 10 343.6 28 82 48.14 68 154 10.25 108 226 2.941

-11 12 325.1 29 84 46.11 69 156 9.902 109 228 2.86

-10 14 307.7 30 86 44.17 70 158 9.569 110 230 2.781

-9 16 291.3 31 88 42.33 71 160 9.248 111 232 2.704

-8 18 275.9 32 90 40.57 72 162 8.94 112 234 2.63

-7 19 261.4 33 91 38.89 73 163 8.643 113 235 2.559

-6 21 247.8 34 93 37.3 74 165 8.358 114 237 2.489

-5 23 234.9 35 95 35.78 75 167 8.084 115 239 2.422

-4 25 222.8 36 97 34.32 76 169 7.82 116 241 2.357

-3 27 211.4 37 99 32.94 77 171 7.566 117 243 2.294

-2 28 200.7 38 100 31.62 78 172 7.321 118 244 2.233

-1 30 190.5 39 102 30.36 79 174 7.086 119 246 2.174

0 32 180.9 40 104 29.15 80 176 6.859 120 248 2.117

1 34 171.9 41 106 28 81 178 6.641 121 250 2.061

2 36 163.3 42 108 26.9 82 180 6.43 122 252 2.007

3 37 155.2 43 109 25.86 83 181 6.228 123 253 1.955

4 39 147.6 44 111 24.85 84 183 6.033 124 255 1.905

5 41 140.4 45 113 23.89 85 185 5.844 125 257 1.856

6 43 133.5 46 115 22.89 86 187 5.663 126 259 1.808

7 45 127.1 47 117 22.1 87 189 5.488 127 261 1.762

8 46 121 48 118 21.26 88 190 5.32 128 262 1.717

9 48 115.2 49 120 20.46 89 192 5.157 129 264 1.674

10 50 109.8 50 122 19.69 90 194 5 130 266 1.632

12 54 99.69 52 126 18.26 92 198 4.703

13 55 95.05 53 127 17.58 93 199 4.562

14 57 90.66 54 129 16.94 94 201 4.426

15 59 86.49 55 131 16.32 95 203 4.294

16 61 82.54 56 133 15.73 96 205 4.167

17 63 78.79 57 135 15.16 97 207 4.045

18 64 75.24 58 136 14.62 98 208 3.927

19 66 71.86 59 138 14.09 99 210 3.812

52 104.6 51 124 18.96 91 196 4.849

66 Specifications subject to change without notice. SM619PHA-03

Page 67

Appendix 3

Table 22 —

° C ° F ° C ° F ° C ° F ° C ° F ° C ° F

-5 23 21 69.8 51 123.8 82 179.6 113 235.4

-4 24.8 22 71.6 52 125.6 83 181.4 114 237.2

-3 26.6 23 73.4 53 127.4 84 183.2 115 239

-2 28.4 24 75.2 54 129.2 85 185 116 240.8

-1 30.2 25 77 55 131 86 186.8 117 242.6

0 32 25.5 77.9 56 132.8 87 188.6 118 244.4

0.5 32.9 26 78.8 57 134.6 88 190.4 119 246.2

1 33.8 27 80.6 58 136.4 89 192.2 120 248

1.5 34.7 28 82.4 59 138.2 90 194 121 249.8

2 35.6 29 84.2 60 140 91 195.8 122 251.6

2.5 36.5 30 86 61 141.8 92 197.6 123 253.4

3 37.4 31 87.8 62 143.6 93 199.4 124 255.2

3.5 38.3 32 89.6 63 145.4 94 201.2 125 257

4 39.2 33 91.4 64 147.2 95 203 126 258.8

4.5 40.1 34 93.2 65 149 96 204.8 127 260.6

5 41 35 95 66 150.8 97 206.6 128 262.4

6 42.8 36 96.8 67 152.6 98 208.4 129 264.2

7 44.6 37 98.6 68 154.4 99 210.2 130 266

8 46.4 38 100.4 69 156.2 100 212 131 267.8

9 48.2 39 102.2 70 158 101 213.8 132 269.6

10 50 40 104 71 159.8 102 215.6 133 271.4

11 51.8 41 105.8 72 161.6 103 217.4 134 273.2

12 53.6 42 107.6 73 163.4 104 219.2 135 275

13 55.4 43 109.4 74 165.2 105 221 136 276.8

14 57.2 44 111.2 75 167 106 222.8 137 278.6

15 59 45 113 76 168.8 107 224.6 138 280.4

16 60.8 46 114.8 77 170.6 108 226.4 139 282.2

17 62.6 47 116.6 78 172.4 109 228.2 140 284

18 64.4 48 118.4 79 174.2 110 230 141 285.8

19 66.2 49 120.2 80 176 111 231.8 142 287.6

20 68 50 122 81 177.8 112 233.6 143 289.4

Celsius to Fahrenheit

SM619PHA-03 Specifications subject to change without notice. 67

Page 68

2019 Bryant Heating & Cooling Systems D3300 Riverwood Parkway Atlanta GA, 30339 Edition Date: 04/19 Catalog No. SM619PHA-03

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Replaces: SM619PHA-02