Friedrich Breeze Series User manual

1 PB
Service Manual
96162000_02
Friedrich Breeze™ Series
Mini Split Ducted Heat Pumps
BreezeTM 208/230 VOLT
Outdoor Unit WFPU17Z243C (24K), WFPU18Z363C (36K),
WFPU18Z483C (48K) , WFPU17Z603C (60K)
Indoor Unit WFH24Z193C (24K), WFH36Z193C (36K),
WFH48Z223C (48K), WFH60Z223C (60K)
THE EXPERTS IN ROOM AIR CONDITIONING

2 PB
TABLE OF CONTENTS
Table of Contents
INTRODUCTION‑ 4
Important Safety Information‑ 4
Personal Injury Or Death Hazards‑ 6
Model Number Identification Guide‑ 8
Serial Number Identification Guide‑ 8
SPECIFICATIONS‑ 9
Product Specifications (Outdoor Unit)‑ 9
Electric Heater Kit Selection Table‑ 14
Sound Pressure Data (Outdoor Units)‑ 15
Sound Pressure Data (Indoor Units)‑ 16
Blower Data (Indoor Units)‑ 17
Product Dimensions (24k Outdoor Unit)‑ 19
Product Dimensions (36k Outdoor Unit)‑ 20
Product Dimensions (48‑60k Outdoor Unit)‑ 21
Product Dimensions (24‑36k Indoor Unit)‑ 22
Product Dimensions (48‑60k Indoor Unit)‑ 23
Capacities and Selection Data‑ 24
Capacities and Selection Data‑ 41
INSTALLATION‑ 42
Safety Precautions‑ 42
Tools‑ 44
Flow Chart‑ 45
Refrigerant Flow Diagram‑ 46
Electrical wiring diagram ‑ Example: Matched AHU+ODU‑ 46
Indoor Unit ‑ Caution Statements‑ 47
Indoor Unit ‑ Component Identification‑ 49
Indoor Unit ‑ Troubleshooting‑ 50
Indoor Unit ‑ Air‑Filter‑ 51
Indoor Unit ‑ Caution Statements‑ 52
Indoor Unit ‑ Installation Location and Clearances‑ 53
Indoor Unit ‑ Install Unit‑ 54
Indoor Unit ‑ Refrigerant Piping‑ 55
Indoor Unit ‑ Drain Piping‑ 56
Indoor Unit ‑ Electrical Wiring‑ 57
Indoor Unit ‑ Changing Static Pressure‑ 59
Outdoor Unit Handling and Installation location Selection‑ 60
Outdoor Unit Drainage Elbow and Condensate Hose Installation‑ 61
Outdoor Unit Installation‑ 61
Outdoor Unit ‑ Wiring‑ 62
Refrigerant Piping ‑ 65
Leak Check, Evacuation, and Charging (Triple Evacuation)‑ 67
Test Run‑ 68
OPERATION‑ 69
Control Functions‑ 69
Control logic description‑ 70
Cooling Mode‑ 70
24k BTU Refrigerant Cycle‑ 74
36k BTU Refrigerant Cycle‑ 75
48k to 60k BTU Refrigerant Cycle‑ 76
Outdoor Unit Field Settings‑ 77
Indoor Unit Field Settings‑ 84
TROUBLESHOOTING‑ 85
Normal Malfunction‑ 85
Diagnostic Codes ‑ Outdoor Unit‑ 87
Overload in cooling mode‑ 88
Overload in heating mode‑ 88
Diagnostic Codes ‑Drive Faults 24‑36k‑ 89
Diagnostic Codes ‑Drive Faults 48‑60k‑ 91
Diagnostic Codes ‑ Outdoor Unit‑ 94
Test Refrigeration System‑Cooling Mode‑ 95
Test Refrigeration System‑Heating Mode‑ 96
COMPONENTS TESTING ‑ 97
Compressor‑ 97

3 PB
EEV Stepper Coil‑ 98
Outdoor Fan Motor‑ 99
24k‑36k BTU Outdoor Unit Logic PCB ‑ 101
24k‑36k BTU Outdoor Unit Display PCB‑ 102
48k‑60k BTU Outdoor Unit Logic PCB‑ 103
48 ‑ 60k BTU Driver PCB‑ 104
48‑60k Outdoor Unit Filter Board‑ 105
Indoor Unit Logic PCB‑ 106
UNIT DISASSEMBLY‑ 107
24k Outdoor Unit ‑Compressor And Motor‑ 107
48k/60k Outdoor Unit ‑Compressor And Motor‑ 109
24‑60k Indoor Unit ‑ Fan and Motor‑ 110
R‑410A REFRIGERANT SYSTEM REPAIR‑ 111
General Information‑ 111
Compressor Replacement‑ 113
Compressor Replacement ‑Special Procedure in Case of Compressor Burnout‑ 114
Replace The Reversing Valve‑ 115
TXV Replacement‑ 116
Method of Triple Evacuation ‑ 117
Refrigerant Charging‑ 118
WIRING DIAGRAMS‑ 119
Indoor Units‑ 119
24k‑36k BTU Outdoor Units‑ 120
48k‑60k BTU Outdoor Units‑ 121
APPENDIX‑ 122
Appendix 1: Reference Sheet of Celsius and Fahrenheit‑ 122
Appendix 3 Resistance Table for Compressor Discharge Sensor‑ 123
Appendix 4 Resistance Table for Other Sensor‑ 126
WARRANTY‑ 129
TABLE OF CONTENTS

4 PB
INTRODUCTION
Important Safety Information
The information in this manual is intended for use by a qualied technician who is familiar with the safety procedures required
for installation and repair, and who is equipped with the proper tools and test instruments required to service this product.
Maintenance is the responsibility of the owner. Failure to properly maintain or repair equipment may result in personal injury
and/or various types of property damage (re, ood, etc.).
Installation or repairs made by unqualied persons can result in subjecting the unqualied person making such repairs as well
as the persons being served by the equipment to hazards resulting in injury or electrical shock which can be serious or even
fatal.
Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered. If you
install or perform service on equipment, it is your responsibility to read and obey these warnings to guard against any bodily
injury or property damage which may result to you or others.
Due to continuing research in new energy-saving technology, all information in this manual is subject to change without notice.
Your safety and the safety of others is very
important.
We have provided many important safety messages in this manual and on your appliance. Always
read and obey all safety messages.
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol with the word “WARNING”
or “CAUTION”. These words mean:
Indicates a hazard which, if not avoided, can result in severe personal
injury or death and damage to product or other property.
Indicates a hazard which, if not avoided, can result in personal injury
and damage to product or other property.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance
of injury, and tell you what will happen if the instructions are not followed.
Indicates property damage can occur if instructions are not followed.
WARNING
NOTICE
CAUTION
WARNING
Refrigeration system
under high pressure
Do not puncture, heat, expose to ame or
incinerate.
Only certied refrigeration technicians
should service this equipment.
R410A systems operate at higher pressures
than R22 equipment. Appropriate safe
service and handling practices must be used.
Only use gauge sets designed for use with
R410A.
Do not use standard R22 gauge sets.

5 PB
INTRODUCTION
Important Safety Information
Your safety and the safety of others are very
important.
We have provided many important safety messages in
this manual and on your appliance. Always read and
obey all safety messages.
This is the safety Alert symbol.
This symbol alerts you to potential
hazards that can kill or hurt you
and others.
All safety messages will follow the
safety alert symbol with the word
“WARNING” or “CAUTION”.
These words mean:
Indicates a hazard which, if not avoided, can result in
severe personal injury or death and damage to product or
other property.
Indicates a hazard which, if not avoided, can result in
personal injury and damage to product or other property. All
safety messages will tell you how to reduce the chance of
injury, and tell you what will happen if the instructions are
not followed.
Indicates property damage can occur if instructions
are not followed.
Indicates property damage can occur if instructions
are not followed.
WARNING
CAUTION
NOTICE
To ensure proper operation, Friedrich requires that all equipment is not operated during active construction phases. This includes active stages of
completing framing, dry walling, spackling, sanding, painting, ooring, and moulding in the equipment’s designated conditioning space. The use of
this equipment during construction could result in premature failure of the components and/or system and is in violation of our standard warranty
guidelines. The operation of newly installed equipment during construction will accelerate the commencement and/or termination of the warranty
period.
CAUTION
DO NOT OPERATE EQUIPMENT DURING ACTIVE
STAGES OF CONSTRUCTION
WARNING
EXPLOSION HAZARD
Please read this manual thoroughly prior to
equipment installation or operation. It is the installers
responsibility to properly apply and install the
equipment. Installation must be in conformance with
the NFPA 70-2008 National Electric Code or current
edition, International Mechanic code 2009 or current
edition and any other applicable local or national
codes.
WARNING
EXPLOSION HAZARD
Refrigeration system under high pressure. Do not
puncture, heat, expose to flame or incinerate. Only
certified refrigeration technicians should service this
equipment. Appropriate safe service and handling
practices must be used. Only use gauge sets designed
for use with R410A. Failure to do so can result in
property damage, personal injury, or death.
WARNING
ELECTRIC SHOCK HAZARD
Turn OFF electric power before service or installation.
Unit must be properly grounded.
Unit must have correct fuse or circuit breaker protection.
Unit’ s supply circuit must have the correct wire conductor
size. All electrical connections and wiring must be installed
by a qualified electrician and conform to the National
Electrical Code and all local codes which have jurisdiction.
Failure to do so can result in property damage, personal
injury and/or death.

6 PB
INTRODUCTION
Personal Injury Or Death Hazards
ELECTRICAL HAZARDS:
• Shutdown and/or disconnect all electrical power to the unit before performing inspections, maintenance, or service.
• Make sure to follow proper lockout/tag out procedures.
• Always work in the company of a qualied assistant if possible.
• Capacitors, even when disconnected from the electrical power source, retain an electrical charge potential capable of causing
electric shock or electrocution. Wait a few minutes after shutdown to allow the capacitors to discharge the stored energy.
• Handle, discharge, and test capacitors according to safe, established, standards, and approved procedures.
• Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary to test or troubleshoot
equipment with the power turned on to the unit.
• Do not spray water on the air conditioning unit while the power is on.
• Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditions when
the power is restored and the unit is turned on, even after the exterior is dry.
• Use air conditioner on a single dedicated circuit within the specied amperage rating.
• Ensure that the unit is properly grounded.
• Follow all safety precautions and use approved protective safety equipment such as: gloves, goggles, and clothing. Ensure
that properly insulated tools, and testing equipment are are used as well to protect against equipment damage and reduce
the risk of injury.
• Failure to follow proper safety procedures and these warnings can result in serious injury or possibly death.
SAFETY
FIRST
WARNING AVERTISSEMENT ADVERTENCIA
Do not remove, disable
or bypass this unit’s
safety devices. Doing so
may cause re, Doing so
may cause re, injuries,
or death.
Ne pas supprime, désactiver
ou contourner cette l´unité
des dispositifs de sécurité,
faire vous risqueriez de
provoquer le feu, les
blessures ou la mort.
No eliminar, desactivar o
pasar por alto los
dispositivos de seguridad de
la unidad. Si lo hace podría
producirse fuego, lesiones
o muerte.
WARNING
ALWAYS USE INDUSTRY STANDARD PERSONAL
PROTECTIVE EQUIPMENT (PPE)

7 PB
• REFRIGERATION SYSTEM REPAIR HAZARDS:
• Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before opening system for
repair. Reference EPA regulations (40 CFR Part 82, Subpart F ) Section 608.
• Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to moderate injury.
• Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s ame or hot surfaces can cause
serious burns.
• Make certain to protect personal and surrounding property with re proof materials and have a re extinguisher at hand while
using a torch.
• Provide adequate ventilation to vent off toxic fumes, and work with a qualied assistant whenever possible.
• Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks, ushing etc.
• MECHANICAL HAZARDS:
• Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting, handling, or working
around unit with moving and/or rotating parts.
• Be careful when, handling and working around exposed edges and corners of the sleeve, chassis, and other unit components
especially the sharp ns of the indoor and outdoor coils.
• Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc.
• Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.
• PROPERTY DAMAGE HAZARDS
• FIRE DAMAGE HAZARDS:
• Read the Installation/Operation Manual for the air conditioning unit prior to operating.
• Use air conditioner on a single dedicated circuit within the specied amperage rating.
• Be extremely careful when using acetylene torch and protect surrounding property.
• Failure to follow these instructions can result in re and minor to serious property damage.
• WATER DAMAGE HAZARDS:
• Improper installation, maintenance or servicing of the air conditioner unit can result in water damage to personal items or
property.
• Insure that the unit has a sufcient pitch to the outside to allow water to drain from the unit.
• Do not drill holes in the bottom of the drain pan or the underside of the unit.
• Failure to follow these instructions can result in damage to the unit and/or minor to serious property damage.
INTRODUCTION
Personal Injury Or Death Hazards

8PB
INTRODUCTION
Model Number Identication Guide
Figure 101
Figure 102
Serial Number Identication Guide
YEAR OF MANUFACTURE
23 = 2020 24 = 2025
26 = 2026 27 = 2027
MONTH OF MANUFACTURE
01 = JANUARY
02 = FEBRUARY
03 = MARCH
04 = APRIL
05 = MAY
06 = JUNE
07 = JULY
08 = AUGUST
09 = SEPTEMBER
10 = OCTOBER
11 = NOVEMBER
12 = DECEMBER
MANUFACTURING LOCATION
NUMERIC SEQUENCE
FIRST UNIT OF EACH MONTH = 00001
17 12 M 00001
2023 Breeze Model Number Reference Guide
WF H 24 Z 19 3 C
Model Type/Brand:
Application:
H: Air Handler
Approximate
Cooling
BTU/HR
Refrigerant:
Z- R410A
Cabinet
Width
Marketing Suffix:
Letter indicates
modification to
existing model
Voltage
WF P U 17 Z 60 3 C
Model Type/Brand:
Application:
P: Heat Pump
Application:
U: Outdoor
SEER
Refrigerant:
Z- R410A
Approximate
Cooling
BTU/HR
Voltage
Marketing Suffix:
Letter indicates
modification to
existing model

9PB
SPECIFICATIONS
Product Specications (Outdoor Unit)
Figure 201
Outdoor model 24K 36K 48K 60K
Power supply V/ph/Hz 208~230/1/60 208~230/1/60 208~230/1/60 208~230/1/60
Cooling
Capacity Btu/h 22000 34000 48000 56000
Capacity(min‑
max) Btu/h 6700‑26000 11800‑36800 18300‑52000 18300‑59400
Capacity(min‑
max) W2227‑7327 2814‑10697 5363‑15240 5363‑17409
Input W2180 3370 4750 6780
Current A10.0 15.4 21.8 31.0
EER2 W/W 2.96 2.96 2.96 2.42
SEER2 Btu/(W.h) 16.5 18.0 17.5 17.0
EER2 Btu/(W.h) 10.10 10.10 10.10 8.25
Heating
Capacity Btu/h 23000 35000 47000 56000
Capacity(min‑
max) Btu/h 6700‑26000 8900‑38200 17600‑52000 17600‑56600
Capacity
heating(Rated)
@ 47°F
Btu/h 23000 35000 47000 56000
Capacity
heating(Rated)
@ 17°F"
Btu/h 15000 24000 31000 40000
Maximum
Heating
Capacity@ 5F
Btu/h 16100 24600 33000 34000
COP @
5F (Under
Maximum
Capacity)
W/W 2.10 2.10 1.90 1.86
Input W1980 2950 4170 5290
Current A9.5 14.1 19.5 21.0
HSPF2 Btu/(W.h) 9.0 9.5 8.5 8.5
COP2 W/W 3.4 3.5 3.3 3.1
COP2 Btu/(W.h) 11.60 11.94 11.26 10.58
Min. Ampacity A15 23 35 35
Max. td fuse/ breaker A 25 35 50 50
Communication cable (SI Cord) No. × AWG 5×18 5×18 5×18 5×18
Working Voltage 198V ~ 253V
Voltage Imbalance Within a 3% deviation from each voltage at the main terminal of outdoor unit.
Starting Voltage Higher than 85% of the Rated Voltage
Outdoor fan
motor
Type DC DC DC DC
Model ZWK511A805001 SIC‑
71FW‑F8121‑1
SIC‑
71F W‑D8121‑1/
SIC‑
71FW‑D8121‑2
SIC‑
71F W‑D8121‑1/
SIC‑
71FW‑D8121‑2
Qty 1122
Output W60 121 121 121
Speed (Hi) r/min 880 810 850 850

10 PB
Outdoor model 24K 36K 48K 60K
Outdoor coil
Number of Rows 2 2 2 2
Tube Pitch(a) in 0.827 0.827 0.827 0.827
Row Pitch(b) in 0.852 0.852 0.852 0.852
Fin Spacing Fins Per in 18 19 17 18
Coil Dimension
(W×H×D) in
"(35‑5/8+34)×25‑
1/4
×7/8
38‑3/16×31‑
3/8×1‑1
1/16"
38‑3/16×53×1‑
7/16
38‑3/16×53×
1‑11/16
Fin Type Hydrophilic
aluminium
Hydrophilic
aluminium
Hydrophilic
aluminium
Hydrophilic
aluminium
Tube Outside
Diameter
and Type
mm
Ф7.94,
innergroove
tube
Ф7.94,
innergroove
tube
Ф7.0,
innergroove
tube
Ф7.94,
innergroove
tube
Number of
Circuits 6566
Outdoor air flow CFM 1825 2350 3525 3525
Outdoor noise level
(sound pressure) Hi dB(A) 54 57 59 60
Outdoor Metering Device EEV EEV EEV EEV
Compressor Model EATF250D22UMT EATF250D22UMT EATF400D64UMTA EATF400D64UMTA
Brand GMCC GMCC GMCC GMCC
Compressor
Type Twin ROTARY Twin ROTARY Twin ROTARY Twin ROTARY
Capacity Btu/h 26085 26085 41865 41865
Input W2080 2080 3385 3385
Rated current
(RLA) A9.45 9.45 15.39 15.39
Oil oz VG74 /22.7 VG74 /22.7 VG74 /33.9 VG74 /33.9
Refrigerant
type/Quantity
Type R‑410A R‑410A R‑410A R‑410A
Refrigerant
charge oz(kg) 70.5(2.0) 98.7(2.8) 142.9(4.05) 142.9(4.05)
Factory
pre‑charge Ft(m) 25(7.6) 25(7.6) 25(7.6) 25(7.6)
Additional
charge for
each ft
oz/ft 0.38 0.38 0.6 0.6
Outdoor unit
Dimension(W×H×D) inch 33‑7/8×26‑3/8×
12‑1/4
37‑3/8×33×13‑
3/8
37‑3/8×54‑5/8×
13‑3/8
37‑3/8×54‑5/8×
13‑3/8"
Packing(W×H×D) inch 39×28‑
3/4×17‑3/4
43‑3/4×36‑1/4×
18‑1/8
43‑3/4×60‑1/4×
18‑1/8
43‑3/4×60‑1/4×
18‑1/8
Net weight lbs 112. 4 147.7 227.1 251.3
Shipping Weight lbs 121.3 158.7 253.5 277.5
Design pressure H/L PSIG 550/240 550/240 550/240 550/240
Refrigerant
piping
Liquid side/
Gas side inch (3/8'/5/8') (3/8'/3/4') (3/8'/7/8') (3/8'/7/8')
Max. pipe length ft 164 246 246 246
Max. difference
in level ft 98 98 98 98
Operating
temperature
range
Cooling ˚F 5‑122 5‑122 5‑122 5‑122
Heating ˚F ‑13‑75 ‑13‑75 ‑13‑75 ‑13‑75
SPECIFICATIONS
Product Specications (Outdoor Unit )
Figure 201

11 PB
Outdoor model 24K 36K 48K 60K
Qty’ per 20’ /40’ /40'HQ
(Outdoor unit) Set 90/186/186 52/106/106 26/53/53 26/53/53
NOTE:
1. Test conditions:
1.1 Rated capacity test conditions:
Cooling: Indoor: DB 80.0˚F /WB 67.0˚F Outdoor: DB 95.0˚F /WB 75.0˚F
Heating: Indoor: DB 70.0˚F /WB 60.0˚F Outdoor: DB 47˚F /WB 43˚F
1.2 SEER & HSPF test standard: AHRI 210/240.
2. The Sound Pressure Level is based on the following conditions: Outdoor unit.
Measure the noise value of 3 points which are 1 meter in front of the three sides of the unit surface.
(front/left/right) and 1/2 (unit height +1) meter high from floor level, and calculate the weighted average of the noise.
3. The above data was measured in an anechoic chamber. Please take into consideration
the reflected sound of your specific application environment.
4. All specifications are subject to change by the manufacturer without prior notice.
5. Max. Running Current (A): REFER TO NAMEPLATE
6. Follow all National and local codes and regulations when selecting field wires, and all the above are the minimum wire size.
7. When transmitting cable (SI) is longer than 100 feet, a larger wire size should be selected.
8. Install main switch and circuit breaker for each system separately. Select a high response type circuit breaker that acts within
0.1 second.
SPECIFICATIONS
Product Specications (Outdoor Unit)
Figure 201

12 PB
SPECIFICATIONS
Product Specications (Indoor Unit)
Indoor model 24K 36K 48K 60K
Type US Duct US Duct US Duct US Duct
Power supply V/ph/Hz 208~230/1/60 208~230/1/60 208~230/1/60 208~230/1/60
Moisture
Removal
L/h 2.2 4.5 5.5 7.50
Pts/h 4.64 9.5 11.6 15.80
Min. Ampacity A3.3 4.8 6.8 6.8
Max. td Fuse/
Breaker
A10 10 15 15
Nominal Sensitive
Current (mA) 30 30 30 30
Communication
Cable No. × AWG 5×18 5×18/ 5×18 5×18
Thermostat
Cable 5x18 or 6x18 (when using Matched Air Handler)
Indoor Fan
Motor
(Multi Speed
ECM)
Qty 1111
Model ZWK702B006073 ZWK702B500026 ZKSD‑560‑
8‑50‑14 ZKSD‑560‑8‑58
Output HP 1/3 1/2 3/4 3/4
RLA A2.4~2.6 3.6~3.8 5.0~5.4 5.0~5.4
Speed r/min 350~1400 350~1400 350~1400 350~1400
Indoor Air Flow Rated CFM 800 112 0 1588 1706
Indoor Coil
Number of Rows 4455
Tube Pitch(a) in 0.827 0.827 0.827 0.827
Row Pitch(b) in 0.535 0.535 0.535 0.535
Fin Spacing Fins Per in 18 18 17 17
Fin Type Hydrophilic
Aluminium
Hydrophilic
Aluminium
Hydrophilic
Aluminium
Hydrophilic
Aluminium
Tube outside
Diameter
and Type
mm Ф7, I nnergroove
Tube
Ф7, Innergroove
Tube
Ф7,Innergroove
Tube
Ф7,Innergroove
Tube
Coil mm 2(444× 420×54.4) 2(444×420 ×54.4) 2 (509×546×68) 2 (509×546×68)
Dimension
(W×H×D) in 2(17‑1/2×16‑1/2× 2‑1/8)
2(17‑1/2×16‑
1/2×2‑1
/8)
2 (20×21‑1/2×2‑
11/16)
2 (20×21‑1/2×2‑
11/16)
Number of
Circuits 8 8 12 12
ESP Rated In. W.C. 0.18 0.228 0.276 0.276
Range In. W.C. 0‑0.8 0‑0.8 0‑0.8 0‑0.8
Indoor Noise Level (Hi) dB(A) 55 57 64 65
Throttle Type TXV TXV TXV TXV
Dimension
(W×H×D) inch 19‑5/8 × 46‑ 1/8 × 21‑5/8
19‑5/8 × 46‑
1/8 × 21‑5/8 22×53 ‑7/8×24 22×53‑7/8×24
Packing
(W×H×D) inch 22‑1/2×49‑5/8× 25‑3/8
22‑1/2×49‑5/8×
25‑3/8 25‑1/4×55‑1/2×28 25‑1/4×55‑1/2×28
Net Weight lbs 135.5 140 187.2 187.2
Shipping Weight lbs 158.6 163.1 214 214
Drainage Water Pipe Diameter inch 3/4'' 3/4' ' 3/4'' 3/4''
"Design
Pressure" H/L PSIG 550/240 550/240 550/240 550/240
Figure 202

13 PB
SPECIFICATIONS
Product Specications (Indoor Unit)
Indoor model 24K 36K 48K 60K
NOTE:
1. Test Conditions:
1.1 Rated Capacity Test Conditions:
Cooling: Indoor: DB 80.0˚F /WB 67.0˚F Outdoor: DB 95.0˚F /WB 75.0˚F
Heating: Indoor: DB 70.0˚F /WB 60.0˚F Outdoor: DB 47˚F/WB 43˚F
1.2 SEER & HSPF Test Standard: AHRI 210/240.
2. The Sound Pressure Level is based on the following conditions:
Indoor Unit
Air Handler Unit
Measure the noise value of the point 3.28 feet in front of the outlet of the wind
tunnel and 3.28 feet high from the bottom of the unit.
3. The above data was measured in an anechoic chamber. Please take into consideration
the reflected sound of your specific application environment.
4. All specifications are subject to change by the manufacturer without prior notice.
5. Max. Running Current (A): REFER TO NAMEPLATE
6. Follow local and National electrical codes and regulations when selecting field wires, and all the above are the minimum wire
size.
2. When transmitting (SI) cable is longer than 100 feet, a larger wire size should be selected.
3. Install main switch and circuit breaker for each system separately. Select a high response type circuit breaker that acts within
0.1 second.
4. If an auxiliary heater is required and already installed on indoor unit, power source cable should be installed separately and the
size should be selected in accordance with Local and National Electrical Codes. Refer to Figure 203(Electric Heater Kit Selection
Table)for Specifications.
Figure 202

14 PB
SPECIFICATIONS
Electric Heater Kit Selection Table
Figure 203
Electric
Heat Kit
Model
Air
Handler
Model
Electric
Heat (kW) MIN. Circuit Ampacity MAX. Fuse or Breaker (HACR)
Ampacity
Fan Speed Tap
230VAC 208VAC 230VAC 208VAC 2 3 4 5
AUX5KW 24k 528.3 25.9 30 30 O O O O
AUX7KW 7.5 40.7 37.2 45 40 X O O O
AUX10KW 10 53.2 48.5 60 50 X X O O
AUX5KW 36k 5 29.8 27.4 30 30 O O O O
AUX7KW 7.5 42.2 38.7 45 50 X O O O
AUX10KW 10 54.7 49.9 60 50 X X O O
AUX15KW 15 42.2+36.9 38.6+33.8 45+40 40+35 X X X 0
AUX5KW 48K/60K 531.8 29.4 35 30 0 O O O
AUX7KW 7.5 44.8 40.7 45 45 X O O O
AUX10KW 10 56.7 51.9 60 55 X X O O
AUX15KW 15 44.8+36.9 40.7+33.8 50+40 50+35 X X O O
AUX20KW 20 56.7+49.9 51.9+45.2 60+50 60+50 X X X O
O = Fan Speed tap may be used
X= Fan speed tap may not be used
See Blower Data(Indoor Units)
NOTES:
• When optional electric heater kit is installed, obtain power for AHU from load side of L1 and L2 of electric heater kit.
• It is recommended that the electric heater kit should be installed in cold climate regions or when long piping is used.
• Properly size the auxiliary heater per the table above.
• Ampacities for MCA and Fuse/breaker include the blower motor.
• Heat pump systems require a specified airflow. Each ton of cooling requires between 350 and 450 cubic feet of air per minute
(CFM).

15 PB
SPECIFICATIONS
Sound Pressure Data (Outdoor Units)
Model 24K
Test condition
Total octave band sound level (dB:total sound level C)
Octave band center frequency (Hz)
Model 36K
Test condition 3.28 ft. in front of the unit; 3.28 ft.
above the bottom of the unit.
Total octave band sound level (dB:total sound level C)
Octave band center frequency (Hz)
3.28 ft in front of the unit; 2.7 ft high from
the bottom of the unit; 3.28 ft
above the ground.
Model 48K/60K
Test condition 3.28 ft. in front of the unit; 3.28 ft.
above the bottom of the unit.
Total octave band sound level (dB:total sound level C)
Octave band center frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 4k 8k
500 1k 2k
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 2k 4k 8k
500 1k
Figure 210

16 PB
SPECIFICATIONS
Sound Pressure Data (Indoor Units)
Model 24K
Test Condition 3.28 ft. in front of the outlet of the wind
tunnel; 3.28 ft. above the bottom of the
unit.
Total octave band sound level (dB:total sound level C)
Octave band center frequency (Hz)
Model 36K
Test Condition 3.28 ft. in front of the outlet of the wind
tunnel; 3.28ft. above the bottom of the unit.
Total octave band sound level (dB:total sound level C)
Octave band center frequency (Hz)
Model 48K/60K
Test Condition 3.28 ft. in front of the outlet of the wind
tunnel; 3.28 ft. above the bottom of the unit.
Total octave band sound level (dB:total sound level C)
Octave band center frequency (Hz)
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 4k 8k500 1k 2k
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
NC-70
10
20
30
40
50
60
70
80
90
63 125 250 4k 8k500 1k 2k
Figure 211

17 PB
SPECIFICATIONS
Blower Data (Indoor Units)
Figure 211
Airflow performance data is based on cooling performance with a coil and no filter in place. Check the
performance table for appropriate unit size selection. External static pressure should stay within the minimum
and maximum limits shown in the table below to ensure proper cooling, heating, and electric heating operation.
NOTES:
•Required 350-450 CFM/Ton range.
•When there is an electric heater, set the fan speed based on the air volume that the electric heater
needs (not less than 350 CFM/Ton).
•Airflow based upon air handler unit operates at 230 V with no electric heater kit and no filter.
Airflow at 208 V is approximately the same as 230 V.
Fan speed
Tap (2)
Default setting
Tap (3)
Tap (4)
Tap (5)
CFM
CFM
CFM
CFM
w
w
w
w
External static pressure
in.H2O [KPa]
0
(0)
0.1
(0.02)
0.18
(0.045)
0.3
(0.07)
0.4
(0.1)
0.5
(0.12)
0.6
(0.15)
0.7
(0.17)
0.8
(0.20)
815
94
862
106
792
102
828
114
752
110
792
125
709
123
735
137
859
178
705
145
853
185
803
193
895
241
769
203
864
251
735
213
825
258
779
267
• Model: WFH24Z193C
15
Incorporate your filter’s pressure drop into static pressure calculations. Common pressure drops are:
Merv Material Drop
4Spunglass 0.1
8Pleated 0.12
13 Pleated 0.25

18 PB
SPECIFICATIONS
Blower Data (Indoor Units)
Figure 212
Fan speed
Tap (2)
Default setting
Tap (3)
Tap (4)
Tap (5)
CFM
CFM
CFM
CFM
w
w
w
w
External static pressure
in.H2O [KPa]
0
(0)
0.1
(0.02)
0.18
(0.045)
0.3
(0.07)
0.4
(0.1)
0.5
(0.12)
0.6
(0.15)
0.7
(0.17)
0.8
(0.20)
1,756
348
1,799
366
1,701
357
1,746
377
1,626
369
1,678
388
1,579
378
1,634
398
1,719
413
1,571
410
1,670
428
1,633
437
1,701
481
1,589
452
1,665
495
1,553
465
1,626
510
1,585
525
• Model: WFH48Z223C
Fan speed
Tap (2)
Default setting
Tap (3)
Tap (4)
Tap (5)
CFM
CFM
CFM
CFM
w
w
w
w
External static pressure
in.H2O [KPa]
0
(0)
0.1
(0.02)
0.18
(0.045)
0.3
(0.07)
0.4
(0.1)
0.5
(0.12)
0.6
(0.15)
0.7
(0.17)
0.8
(0.20)
• Model: WFH60Z223C
1,794
387
1,749
401
1,782
456
1,520
387
1,735
469
1,468
395
1,522
419
1,425
407
1,449
428 444
1,402
1,510
482
1,838
376
1,888
415
1,810
387
1,855
428
1,770
401
1,813
445
1,760
413
1,782
456
1,864
513
1,751
469
1,820
530
1,786
540
1,878
603
1,755
558
1,826
495
1,801
631
1,750
638
1,941
485
1,893
501
1,950
575
1,907
592
1,971
472
2,056
533
2,022
545
1,978
562
6. Test Run
Please perform test run according to installation manual of outdoor unit.
16
Fan speed
Tap (2)
Default setting
Tap (3)
Tap (4)
Tap (5)
CFM
CFM
CFM
CFM
w
w
w
w
External static pressure
in.H2O [KPa]
0
(0)
0.1
(0.02)
0.18
(0.045)
0.3
(0.07)
0.4
(0.1)
0.5
(0.12)
0.6
(0.15)
0.7
(0.17)
0.8
(0.20)
1,264
215
1,350
257
1,216
222
1,314
264
1,172
233
1,269
274
1,135
238
1,206
282
1,323
304
1,116
292
1,266
313
1,192
323
1,292
381
1,122
333
1,221
394
1,060
340
1,148
401
1,088
406
• Model: WFH36Z193C
1,096
244
1,350
371
1,082
297
1,050
302

19 PB
SPECIFICATIONS
Product Dimensions (24k Outdoor Unit)
UNIT: INCHES.
GAS PIPE
LIQUID PIPE
4- 5
16"
6 7
16"
4 15
16"
12 7
8"
26 3
8"
12 1
4"
ELECTRIC BOX
3"
6 5
8"
21 3
8"
33 7
8"
DRAIN PIPE
12 1
8"
AIR INLET
2"
1 7
16"
12 3
16"
14 1
2"
AIR OUTLET
4
7
16"
4 7
8"
Figure 204

20 PB
SPECIFICATIONS
Product Dimensions (36k Outdoor Unit)
Unit : inches
6
8
Figure 205