Daikin Fdmq-r series User manual

Service

Manual

Inverter Pair

Duct Connected Type

FDMQ-R Series

SiUS071735EA

[Applied Models]

zInverter Pair : Heat Pump

SiUS071735EA

iTable of Contents

Inverter Pair

Duct Connected Type

FDMQ-R Series

zHeat Pump

Indoor Unit

FDMQ09RVJU

FDMQ12RVJU

FDMQ15RVJU

FDMQ18RVJU

FDMQ24RVJU

Outdoor Unit

RX09RMVJU

RX09RMVJU9

RX12RMVJU

RX12RMVJU9

RX15RMVJU

RX15RMVJUA

RX18RMVJU

RX18RMVJU9

RX18RMVJU9A

RX24RMVJU

RX24RMVJUA

SiUS071735EA

Table of Contents ii

1. Safety Cautions........................................................................................... v

1.1 Warnings and Cautions Regarding Safety of Workers................................. v

1.2 Warnings and Cautions Regarding Safety of Users....................................vii

2. Icons Used .................................................................................................. x

Part 1 List of Functions ................................................................... 1

1. Functions.....................................................................................................2

Part 2 Specifications ....................................................................... 3

1. Specifications ..............................................................................................4

Part 3 Printed Circuit Board Connector Wiring Diagram ................ 8

1. Indoor Unit...................................................................................................9

1.1 FDMQ09/12/15/18/24RVJU ......................................................................... 9

2. Wired Remote Controller...........................................................................11

2.1 BRC1E73 ................................................................................................... 11

3. Wireless Remote Controller Receiver .......................................................12

3.1 BRC082A43 ............................................................................................... 12

4. Outdoor Unit..............................................................................................13

4.1 RX09/12RMVJU(9)..................................................................................... 13

4.2 RX15/24RMVJU(A), RX18RMVJU(9)(A).................................................... 14

Part 4 Functions and Control......................................................... 15

1. Main Functions..........................................................................................16

1.1 Temperature Control .................................................................................. 16

1.2 Frequency Principle.................................................................................... 16

1.3 Fan Speed Control for Indoor Unit ............................................................. 18

1.4 Program Dry Operation .............................................................................. 19

1.5 Clock and Calendar Setting (With Wired Remote Controller BRC1E73) ... 20

1.6 Schedule TIMER Operation (With Wired Remote Controller BRC1E73) ... 22

1.7 Drain Pump Control.................................................................................... 25

1.8 Hot Start Control (In Heating Operation Only)............................................ 27

1.9 Other Functions.......................................................................................... 28

2. Control Specification .................................................................................29

2.1 Mode Hierarchy .......................................................................................... 29

2.2 Frequency Control...................................................................................... 30

2.3 Controls at Mode Changing/Start-up.......................................................... 32

2.4 Discharge Pipe Temperature Control......................................................... 34

2.5 Input Current Control.................................................................................. 35

2.6 Freeze-up Protection Control ..................................................................... 36

2.7 Heating Peak-cut Control ........................................................................... 37

2.8 Outdoor Fan Control................................................................................... 38

2.9 Liquid Compression Protection Function.................................................... 38

2.10 Defrost Control ........................................................................................... 39

SiUS071735EA

iii Table of Contents

2.11 Electronic Expansion Valve Control ........................................................... 40

2.12 Malfunctions ............................................................................................... 43

Part 5 Remote Controller ............................................................... 44

1. Wired Remote Controller (BRC1E73) .......................................................45

2. Wireless Remote Controller (BRC082A43)...............................................51

Part 6 Service Diagnosis................................................................ 53

1. General Problem Symptoms and Check Items .........................................55

2. Troubleshooting with LED .........................................................................56

2.1 Indoor Unit.................................................................................................. 56

2.2 Outdoor Unit ............................................................................................... 56

3. Service Diagnosis .....................................................................................57

3.1 Wired Remote Controller (BRC1E73) ........................................................ 57

3.2 Wireless Remote Controller (BRC082A43) ................................................ 59

4. Troubleshooting ........................................................................................63

4.1 Error Codes and Description ...................................................................... 63

4.2 Indoor Unit PCB Abnormality ..................................................................... 64

4.3 Drain Level Control System Abnormality.................................................... 65

4.4 Indoor Fan Motor (DC Motor) or Related Abnormality ............................... 66

4.5 Indoor Fan PCB Abnormality...................................................................... 68

4.6 Humidifier or Related Abnormality.............................................................. 69

4.7 Thermistor or Related Abnormality............................................................. 70

4.8 Remote Controller Thermistor Abnormality ................................................ 71

4.9 Signal Transmission Error

(Between Indoor Unit and Remote Controller) ........................................... 72

4.10 Signal Transmission Error

(Between MAIN Remote Controller and SUB Remote Controller) ............. 73

4.11 Low-voltage Detection or Over-voltage Detection...................................... 74

4.12 Signal Transmission Error (Between Indoor Unit and Outdoor Unit).......... 76

4.13 Mismatching of Indoor Unit and Outdoor Unit ............................................ 78

4.14 Outdoor Unit PCB Abnormality................................................................... 79

4.15 OL Activation (Compressor Overload) ....................................................... 80

4.16 Compressor Lock ....................................................................................... 82

4.17 DC Fan Lock (Outdoor Fan Motor)............................................................. 83

4.18 Input Overcurrent Detection ....................................................................... 84

4.19 Four Way Valve Abnormality...................................................................... 85

4.20 Discharge Pipe Temperature Control......................................................... 87

4.21 High Pressure Control in Cooling ............................................................... 88

4.22 System Shutdown due to Compressor Internal Temperature

Abnormality ................................................................................................ 90

4.23 Compressor System Sensor Abnormality .................................................. 91

4.24 Position Sensor Abnormality ...................................................................... 92

4.25 Thermistor or Related Abnormality (Outdoor Unit)..................................... 94

4.26 Electrical Box Temperature Rise................................................................ 96

4.27 Radiation Fin Temperature Rise ................................................................ 97

SiUS071735EA

Table of Contents iv

4.28 Output Overcurrent Detection .................................................................... 98

5. Check ......................................................................................................100

5.1 Thermistor Resistance Check .................................................................. 100

5.2 Indoor Fan Motor Connector Check ......................................................... 101

5.3 Power Supply Waveforms Check............................................................. 101

5.4 Electronic Expansion Valve Check........................................................... 102

5.5 Four Way Valve Performance Check ....................................................... 103

5.6 Inverter Unit Refrigerant System Check................................................... 103

5.7 Inverter Analyzer Check ........................................................................... 104

5.8 Rotation Pulse Check on the Outdoor Unit PCB ...................................... 106

5.9 Installation Condition Check..................................................................... 107

5.10 Discharge Pressure Check....................................................................... 107

5.11 Outdoor Fan System Check ..................................................................... 108

5.12 Main Circuit Short Check.......................................................................... 108

5.13 Power Module Check ............................................................................... 110

Part 7 Trial Operation and Field Settings.................................... 112

1. Pump Down Operation............................................................................113

2. Forced Cooling Operation .......................................................................114

3. Trial Operation ........................................................................................115

4. Field Settings ..........................................................................................118

4.1 How to Change the Field Settings............................................................ 118

4.2 Overview of the Field Settings.................................................................. 121

4.3 MAIN/SUB and Address Setting for Wireless Remote Controller ............ 122

4.4 Facility Setting (cooling at low outdoor temperature) ............................... 124

5. Silicone Grease on Power Transistor/Diode Bridge................................125

Part 8 Appendix............................................................................ 126

1. Piping Diagrams......................................................................................127

1.1 Indoor Unit................................................................................................ 127

1.2 Outdoor Unit ............................................................................................. 128

2. Wiring Diagrams......................................................................................130

2.1 Indoor Unit................................................................................................ 130

2.2 Outdoor Unit ............................................................................................. 131

3. Operation Limit........................................................................................133

Safety Cautions SiUS071735EA

1. Safety Cautions

Be sure to read the following safety cautions before conducting repair work.

After the repair work is complete, be sure to conduct a test operation to ensure that the equipment

operates normally, and explain the cautions for operating the product to the customer.

Caution Items The caution items are classified into Warning and Caution. The Warning items are

especially important since death or serious injury can result if they are not followed closely. The

Caution items can also lead to serious accidents under some conditions if they are not

followed. Therefore, be sure to observe all the safety caution items described below.

Pictograms This symbol indicates an item for which caution must be exercised.

The pictogram shows the item to which attention must be paid.

This symbol indicates a prohibited action.

The prohibited item or action is shown in the illustration or near the symbol.

This symbol indicates an action that must be taken, or an instruction.

The instruction is shown in the illustration or near the symbol.

1.1 Warnings and Cautions Regarding Safety of Workers

This manual is for the

person in charge of

maintenance and

inspection.

Warning

Do not store equipment in a room with fire sources (e.g., naked flames,

gas appliances, electric heaters).

Be sure to disconnect the power cable from the socket before

disassembling equipment for repair.

Working on equipment that is connected to the power supply may cause an

electrical shock.

If it is necessary to supply power to the equipment to conduct the repair or

inspect the circuits, do not touch any electrically charged sections of the

equipment.

If refrigerant gas is discharged during repair work, do not touch the

discharged refrigerant gas.

Refrigerant gas may cause frostbite.

When disconnecting the suction or discharge pipe of the compressor at

the welded section, evacuate the refrigerant gas completely at a well-

ventilated place first.

If there is gas remaining inside the compressor, the refrigerant gas or

refrigerating machine oil discharges when the pipe is disconnected, and it may

cause injury.

If refrigerant gas leaks during repair work, ventilate the area.

Refrigerant gas may generate toxic gases when it contacts flames.

SiUS071735EA Safety Cautions

Be sure to discharge the capacitor completely before conducting repair

work.

The step-up capacitor supplies high-voltage electricity to the electrical

components of the outdoor unit.

A charged capacitor may cause an electrical shock.

Do not turn the air conditioner on or off by plugging in or unplugging the

power cable.

Plugging in or unplugging the power cable to operate the equipment may cause

an electrical shock or fire.

Be sure to wear a safety helmet, gloves, and a safety belt when working

in a high place (more than 2 m (6.5 ft)).

Insufficient safety measures may cause a fall.

In case of R-32 / R-410A refrigerant models, be sure to use pipes, flare

nuts and tools intended for the exclusive use with the R-32 / R-410A

refrigerant.

The use of materials for R-22 refrigerant models may cause a serious accident,

such as a damage of refrigerant cycle or equipment failure.

Do not mix air or gas other than the specified refrigerant (R-32 / R-410A /

R-22) in the refrigerant system.

If air enters the refrigerant system, an excessively high pressure results,

causing equipment damage and injury.

Warning

Caution

Do not repair electrical components with wet hands.

Working on the equipment with wet hands may cause an electrical shock.

Do not clean the air conditioner with water.

Washing the unit with water may cause an electrical shock.

Be sure to provide an earth / grounding when repairing the equipment in

a humid or wet place, to avoid electrical shocks.

Be sure to turn off the power switch and unplug the power cable when

cleaning the equipment.

The internal fan rotates at a high speed, and may cause injury.

Safety Cautions SiUS071735EA

vii

1.2 Warnings and Cautions Regarding Safety of Users

Be sure to conduct repair work with appropriate tools.

The use of inappropriate tools may cause injury.

Be sure to check that the refrigerating cycle section has cooled down

enough before conducting repair work.

Working on the unit when the refrigerating cycle section is hot may cause

burns.

Conduct welding work in a well-ventilated place.

Using a welder in an enclosed room may cause oxygen deficiency.

Caution

Warning

Do not store the equipment in a room with fire sources (e.g., naked

flames, gas appliances, electric heaters).

Be sure to use parts listed in the service parts list of the applicable model

and appropriate tools to conduct repair work. Never attempt to modify the

equipment.

The use of inappropriate parts or tools may cause an electrical shock,

excessive heat generation or fire.

If the power cable and lead wires are scratched or have deteriorated, be

sure to replace them.

Damaged cable and wires may cause an electrical shock, excessive heat

generation or fire.

Do not use a joined power cable or extension cable, or share the same

power outlet with other electrical appliances, since it may cause an

electrical shock, excessive heat generation or fire.

Be sure to use an exclusive power circuit for the equipment, and follow

the local technical standards related to the electrical equipment, the

internal wiring regulations, and the instruction manual for installation

when conducting electrical work.

Insufficient power circuit capacity and improper electrical work may cause an

electrical shock or fire.

SiUS071735EA Safety Cautions

viii

Be sure to use the specified cable for wiring between the indoor and

outdoor units.

Make the connections securely and route the cable properly so that there is no

force pulling the cable at the connection terminals.

Improper connections may cause excessive heat generation or fire.

When wiring between the indoor and outdoor units, make sure that the

terminal cover does not lift off or dismount because of the cable.

If the cover is not mounted properly, the terminal connection section may cause

an electrical shock, excessive heat generation or fire.

Do not damage or modify the power cable.

Damaged or modified power cables may cause an electrical shock or fire.

Placing heavy items on the power cable, or heating or pulling the power cable

may damage it.

Do not mix air or gas other than the specified refrigerant (R-32 / R-410A /

R-22) in the refrigerant system.

If air enters the refrigerant system, an excessively high pressure results,

causing equipment damage and injury.

If the refrigerant gas leaks, be sure to locate the leaking point and repair

it before charging the refrigerant. After charging the refrigerant, make

sure that there is no leak.

If the leaking point cannot be located and the repair work must be stopped, be

sure to pump-down, and close the service valve, to prevent refrigerant gas from

leaking into the room. Refrigerant gas itself is harmless, but it may generate

toxic gases when it contacts flames, such as those from fan type and other

heaters, stoves and ranges.

When relocating the equipment, make sure that the new installation site

has sufficient strength to withstand the weight of the equipment.

If the installation site does not have sufficient strength or the installation work

is not conducted securely, the equipment may fall and cause injury.

Check to make sure that the power cable plug is not dirty or loose, then

insert the plug into a power outlet securely.

If the plug is dusty or has a loose connection, it may cause an electrical shock

or fire.

When replacing the coin battery in the remote controller, be sure to

dispose of the old battery to prevent children from swallowing it.

If a child swallows the coin battery, see a doctor immediately.

Warning

Safety Cautions SiUS071735EA

Caution

Installation of a leakage breaker is necessary in some cases depending

on the conditions of the installation site, to prevent electrical shocks.

Do not install the equipment in a place where there is a possibility of

combustible gas leaks.

If combustible gas leaks and remains around the unit, it may cause a fire.

Check to see if parts and wires are mounted and connected properly, and

if connections at the soldered or crimped terminals are secure.

Improper installation and connections may cause excessive heat generation,

fire or an electrical shock.

If the installation platform or frame has corroded, replace it.

A corroded installation platform or frame may cause the unit to fall, resulting in

injury.

Check the earth / grounding, and repair it if the equipment is not properly

earthed / grounded.

Improper earth / grounding may cause an electrical shock.

Be sure to measure insulation resistance after the repair, and make sure

that the resistance is 1 MΩor higher.

Faulty insulation may cause an electrical shock.

Be sure to check the drainage of the indoor unit after the repair.

Faulty drainage may cause water to enter the room and wet the furniture and

floor.

Do not tilt the unit when removing it.

The water inside the unit may spill and wet the furniture and floor.

SiUS071735EA Icons Used

2. Icons Used

The following icons are used to attract the attention of the reader to specific information.

Icon Type of

Information

Description

Warning

Warning A Warning is used when there is danger of personal injury.

Caution

Caution A Caution is used when there is danger that the reader, through

incorrect manipulation, may damage equipment, lose data, get

an unexpected result or have to restart (part of) a procedure.

Note:

Note A Note provides information that is not indispensable, but may

nevertheless be valuable to the reader, such as tips and tricks.

Reference A Reference guides the reader to other places in this binder or

in this manual, where he/she will find additional information on a

specific topic.

SiUS071735EA

1List of Functions

Part 1

List of Functions

1. Functions.....................................................................................................2

SiUS071735EA Functions

List of Functions 2

1. Functions

Category Functions

FDMQ09/12/15/18/24RVJU

RX09/12/15/18/24RMVJU(9)(A)

with BRC1E73

FDMQ09/12/15/18/24RVJU

RX09/12/15/18/24RMVJU(9)(A)

with BRC082A43

Category Functions

FDMQ09/12/15/18/24RVJU

RX09/12/15/18/24RMVJU(9)(A)

with BRC1E73

FDMQ09/12/15/18/24RVJU

RX09/12/15/18/24RMVJU(9)(A)

with BRC082A43

Basic

Functions

Inverter (with inverter power control) zzHealth &

Cleanliness

Auto cleaning filter — —

Operation limit for cooling Refer to P. 133 Air-purifying filter — —

Operation limit for heating Titanium apatite deodorizing filter — —

PAM control zz Silver ion anti-bacterial drain pan zz

Standby electricity saving — — Longlife filter (option) zz

Compressor Oval scroll compressor — — Air filter — —

Swing compressor zz Filter cleaning indicator zz

Rotary compressor — — Wipe-clean flat panel — —

Reluctance DC motor zz Washable grille — —

Comfortable

Airflow

Power-airflow flap (horizontal blade) — — MOLD PROOF operation — —

Power-airflow dual flaps

(horizontal blade) —— Good-sleep cooling operation — —

Timer Setpoint auto reset z—

Power-airflow diffuser — — Setpoint range restriction z—

Wide-angle louvers (vertical blades) — — WEEKLY TIMER operation — —

Auto-swing (up and down) — — Schedule TIMER operation z—

Auto-swing (right and left) — — 24-hour ON/OFF TIMER z—

Individual flap control — — Count up/down ON/OFF timer — z

3-D airflow — — NIGHT SET mode — —

COMFORT AIRFLOW operation — — Off Timer (turns unit off after set time) z—

Switchable fan speed (3 steps) z

Worry Free

(Reliability &

Durability)

Auto-restart (after power failure) zz

Auto fan speed z— Self-diagnosis (R/C, LED) zz

Comfort

Control

Indoor unit quiet operation — — Wiring error check function — —

NIGHT QUIET mode (automatic) — — Anti-corrosion treatment of outdoor

heat exchanger zz

OUTDOOR UNIT QUIET operation

(manual) ——

Flexibility Multi-split/split type compatible indoor

unit zz

2 selectable temperature sensors z—

Auto-cooling/heating changeover zz H/P, C/O compatible indoor unit — —

Quick warming function zz Flexible power supply

correspondence ——

Hot-start function zz

Automatic defrosting zz Chargeless

32.8 ft

(10 m)

32.8 ft

(10 m)

Program dry function zz

Fan only zz Either side drain (right or left) — —

Lifestyle

Convenience

POWERFUL operation (non-inverter) — — Drain pump zz

POWERFUL operation (inverter) — — Power selection — —

Priority-room setting — — Low outdoor temperature cooling

operation (–20°C) (–4°F) zz

COOL/HEAT mode lock — —

HOME LEAVE operation — — °F/°C changeover R/C temperature

display (factory setting: °F) z—

ECONO operation — —

Emergency operation switch — zRemote

Control Remote control adaptor

(normal open pulse contact) (option) ——

Signal receiving sign — z1

R/C with back light z—Remote control adaptor

(normal open contact) (option) ——

DIII-NET compatible (adaptor) (option) zz

Wireless LAN connection — —

Remote

Controller

Wireless (option) zz

Wired (option) zz

Note: z: Available

— : Not available

1: Receiving sound only

SiUS071735EA

3Specifications

Part 2

Specifications

1. Specifications ..............................................................................................4

SiUS071735EA Specifications

Specifications 4

1. Specifications

60 Hz, 208 - 230 V

Notes: 1 Indoor temp. : 80.0°FDB (26.7°CDB), 67.0°FWB (19.4°CWB) / Outdoor temp. : 95.0°FDB (35.0°CDB) /

Equivalent piping length : 25 ft (7.6 m) / Level difference : 0

2 Indoor temp. : 70.0°FDB (21.1°CDB) / Outdoor temp. : 47.0°FDB (8.3°CDB), 43.0°FWB (6.1°CWB) /

Equivalent piping length : 25 ft (7.6 m) / Level difference : 0

3 Indoor temp. : 70.0°FDB (21.1°CDB) / Outdoor temp. : 17.0°FDB (–8.3°CDB), 15.0°FWB (–9.4°CWB) /

Equivalent piping length : 25 ft (7.6 m) / Level difference : 0

4 Capacities are net, including a deduction for cooling (an addition for heating) for indoor fan motor heat.

5 External static pressure is changeable in 13 (FDMQ09/12RVJU), 11 (FDMQ15/18/24RVJU) stages by remote

controller.

6 Air filter is not standard accessory, but please mount it in the duct system of the suction side.

Select its dust collection efficiency (gravity method) 50% or more.

Model

Indoor Unit FDMQ09RVJU FDMQ09RVJU

Outdoor Unit RX09RMVJU RX09RMVJU9

Cooling Heating Cooling Heating

Power Supply 1 phase, 208-230 V, 60 Hz 1 phase, 208-230 V, 60 Hz

Cooling Capacity 1 4

kW 2.64 — 2.64 —

Btu/h 9,000 — 9,000 —

kcal/h 2,270 — 2,270 —

Heating Capacity 2 4

kW — 3.18 — 3.18

Btu/h — 10,900 — 10,900

kcal/h — 2,750 — 2,750

Heating Capacity 3 4

kW — 1.98 — 1.98

Btu/h — 6,800 — 6,800

kcal/h — 1,710 — 1,710

SEER/HSPF 17.8 10.3 17.8 10.3

COP (Rated) W/W — 4.1 — 4.1

EER (Rated)

Btu/W·h

11.1 — 11.1 —

Indoor Unit FDMQ09RVJU FDMQ09RVJU

Casing Color ——

Dimensions (H × W × D) in. (mm) 9-5/8 × 27-9/16 × 31-1/2 (245 × 700 × 800) 9-5/8 × 27-9/16 × 31-1/2 (245 × 700 × 800)

Coil

Type Cross Fin Coil Cross Fin Coil

Rows × Stages × Fin per Inch 3 × 26 × 18 3 × 26 × 18

Face Area ft² (m²) 1-15/16 (0.178) 1-15/16 (0.178)

Fan

Type Sirocco Fan Sirocco Fan

Motor Output W 130 130

Airflow Rate H / M / L cfm

(m³/min)

343 / 290 / 240

(9.7 / 8.2 / 6.8)

343 / 290 / 240

(9.7 / 8.2 / 6.8)

343 / 290 / 240

(9.7 / 8.2 / 6.8)

343 / 290 / 240

(9.7 / 8.2 / 6.8)

External Static Pressure

5

inH2O 0.20 (0.60 - 0.12) 0.20 (0.60 - 0.12)

Pa 50 (150 - 30) 50 (150 - 30)

Sound Pressure Level dB(A) 32 32 32 32

Sound Power Level dB(A) 46 46 46 46

Air Filter 6 — —

Weight (Mass) Lbs (kg) 64 (29) 64 (29)

Piping Connections

Liquid in. (mm) φ1/4 (6.4) (Flare) φ1/4 (6.4) (Flare)

Gas in. (mm) φ3/8 (9.5) (Flare) φ3/8 (9.5) (Flare)

Drain in. (mm) I.D. φ1 (25) / O.D. φ1-1/4 (32) I.D. φ1 (25) / O.D. φ1-1/4 (32)

Remote Controller

(Option)

Wired BRC1E73 BRC1E73

Wireless BRC082A43 BRC082A43

Outdoor Unit RX09RMVJU RX09RMVJU9

Casing Color Ivory White Ivory White

Dimensions (H × W × D) in. (mm) 21-5/8 × 26-9/16 × 11-3/16 (550 × 675 × 284) 21-5/8 × 26-9/16 × 11-3/16 (550 × 675 × 284)

Coil

Type Cross Fin Coil Cross Fin Coil

Rows × Stages × Fin per Inch 2 × 24 × 17 2 × 24 × 17

Face Area ft² (m²) 3-11/16 (0.342) 3-11/16 (0.342)

Compressor

Model 1YC23AUXD 1YC23AUXD

Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type

Motor Output W 790 790

Fan

Type Propeller Propeller

Motor Output W 39 39

Airflow Rate cfm

(m³/min) 985 (27.9) 1,105 (31.3) 985 (27.9) 1,130 (32.0)

Sound Pressure Level dB(A) 46 50 46 50

Sound Power Level dB(A) 58 62 58 62

Weight (Mass) Lbs (kg) 60 (27) 60 (27)

Piping Connections

Liquid in. (mm) φ1/4 (6.4) (Flare) φ1/4 (6.4) (Flare)

Gas in. (mm) φ3/8 (9.5) (Flare) φ3/8 (9.5) (Flare)

Drain in. (mm) I.D. φ5/8 (16) I.D. φ5/8 (16)

Safety Devices Fuse Fuse

Capacity Step % Compressor Revolution Speed Control (Inverter System) Compressor Revolution Speed Control (Inverter System)

Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve

Max. Interunit Piping Length ft (m) 65-5/8 (20) 65-5/8 (20)

Max. Interunit Height Difference ft (m) 49-1/4 (15) 49-1/4 (15)

Refrigerant Type R-410A R-410A

Charge Lbs (kg) 2.09 (0.95) 2.09 (0.95)

Refrigerant Oil Type FVC50K FVC50K

Charge fl oz (L) 12.68 (0.375) 12.68 (0.375)

Drawing No. C: 3D112997D C: 3D120555A

Conversion Formulae

kcal/h = kW × 860

Btu/h = kW × 3412

cfm = m³/min × 35.3

Specifications SiUS071735EA

5Specifications