Allied 4HP14B User manual

508090-01 Issue 2032 Page 1 of 40
SERVICE MANUAL
4HP14B/4HP15L
(P) 508090-01
*P508090-01*
Table of Contents
Technical Specications - 4HP14B..............................2
Technical Specications - 4HP15L ..............................5
Technical Specications - Past Models .......................8
Parts Arrangement.....................................................12
General Information...................................................13
Operating Gauge Set and Service Valves .................13
Installation .................................................................14
Refrigeration Piping...................................................16
Electrical Wiring.........................................................24
Operation...................................................................25
Maintenance..............................................................27
Homeowner Information ............................................27
Start-Up .....................................................................32
Start-Up and Performance Checklist.........................40
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to
the potential for personal injury or death.
Electric shock hazard.
Can cause injury or death. Before attempting
to perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
WARNING
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves
and protective clothing.
CAUTION
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer (or
equivalent), service agency or the gas supplier.
WARNING

508090-01Issue 2032Page 2 of 40
Technical Specications - 4HP14B
MODEL NUMBER GUIDE
Minor Revision Code
Major Revision Code
50 = Omniguard®
Electrical
P - 208-230V/60hz/1Ph
Tonnage
18, 24, 30, 36, 42, 48, 60
Refrigerant
4 = R410A
HP
Heat Pump
SEER
14
Tier
B = Wire Guard
4 HP 14 B 24 P - 50 A
PHYSICAL AND ELECTRICAL DATA
Model Voltage/Hz/Phase Voltage
Range
Min.
Circuit
Amp.
Max. Over
Current
Device
(amps)
Compressor Outdoor Fan Motor
Rated
Load
(amps)
Locked
Rotor
(amps)
Full
Load
(amps)
Rated
HP
Nom.
RPM
4HP14B18P-50 208-230/60/1 197-253 12.3 20 9.0 48 1.1 1/6 825
4HP14B24P-50 208-230/60/1 197-253 17.9 30 13.4 58 1.1 1/6 825
4HP14B30P-50 208-230/60/1 197-253 17.1 25 12.8 64 1.1 1/6 825
4HP14B36P-50 208-230/60/1 197-253 18.7 30 14.1 77 1.1 1/6 825
4HP14B42P-50 208-230/60/1 197-253 25.8 45 19.2 123.9 1.8 1/4 825
4HP14B48P-50 208-230/60/1 197-253 26.2 45 19.6 130 1.8 1/4 825
4HP14B60P-50 208-230/60/1 197-253 29.6 50 22.2 127.9 1.8 1/4 825
UNIT DIMENSIONS (IN.)
Model
Dimensions (in.) Shipping
Weight
(lbs.)
A - Width B - Depth C - Height
4HP14B18P-50 28.25 28.25 43.25 163
4HP14B24P-50 28.25 28.25 43.25 165
4HP14B30P-50 28.25 28.25 43.25 165
4HP14B36P-50 28.25 28.25 37.25 186
4HP14B42P-50 32.25 32.25 37.25 230
4HP14B48P-50 32.25 32.25 37.25 233
4HP14B60P-50 32.25 32.25 43.25 247
Note:
Dimensions listed are unit sizes w/o packaging
Weights listed are unit weights with packaging

508090-01 Issue 2032 Page 3 of 40
SOUND RATINGS
Model Sound Power1
Estimated Sound Pressure (dBA)2
Approximate Distance3
3.3 Feet
(1 Meter)
6.6 Feet
(2 Meters)
9.8 Feet
(3 Meters)
4HP14B18P-50 76 68 62 58
4HP14B24P-50 76 68 62 58
4HP14B30P-50 76 68 62 58
4HP14B36P-50 76 68 62 58
4HP14B42P-50 79 71 65 61
4HP14B48P-50 80 72 66 62
4HP14B60P-50 80 72 66 62
1. Rated in accordance with AHRI standard 270 (2015). AHRI Standard 270 establishes a method of rating outdoor unitary equipment in terms of Sound Power.
2. Rated in accordance with AHRI standard 275 (2010). AHRI Standard 275 provides the calculations for estimating the A-Weighted Sound Pressure at a given distance from the equipment.
That is a more useful number because that is what humans will hear.
3. Based only on distance factor; other factors may change this value such as:
• Unit location (reflective surfaces adjacent to the unit)
• Barrier shielding sources
• Sound path/elevation
• Outside noise sources
ACCESSORIES
System Accessory Where Used Kit Number Purpose
Liquid Line Solenoid All models 60M52 Prevents liquid migration to the compressor especially for high liquid riser
applications
Low Ambient HP Units (cooling
operation) All models 54M89 Enables cooling demand down to 30 °F. Will require freeze stat, CC heater and TXV
Mild Ambient (heating operation) All models 11B97 Enables heating demand above 60 °F ambient
Cold Weather Control Board Integrated Feature To allow unit to operate in very low ambient conditions
Fossil Fuel Kit (Heat Pump Only) All models 1.841185 Required for furnace with heat pump installations
Hard Start
24 & 36 10J42 Scroll compressors usually do not require hard start; maybe needed for
utility brown-out or low voltage areas
48 & 60 81J69
Crankcase Heater
18, 24, 30 93M04
Prevents liquid migration to compressor in cold weather
36, 42, 48, 60 Factory Installed
Sound Cover
18, 24, 30, 36 14W00
Lowers compressor sound level
42, 48, 60 14W01
Loss of Charge Kit Factory Installed Protects the compressor if refrigerant charge is too low
Additional System Accessories (indoor section)
TXV Kit
18, 24, 30 H4TXV01
TXVs provide superior refrigerant ow control, comfort and e󰀩ciency
compared to pistons
36, 42, 48 H4TXV02
60 H4TXV03
Outdoor Thermostat - Electric Heat All models 10Z23 Prevents electric heat operation above specic ambient conditions
Outdoor Thermostat - Mounting Box All models 31461 Mounting box for outdoor thermostat
Freeze Stat All models 93G35 Protects the compressor at low suction pressure conditions
Overow Switch All models 11U75 Turn the system o󰀨, if condensate water overows due to clogged drain
pipes
Single Point Power Supply All models 21H39 Provide single power source in one junction box
Auxiliary Blower Relay All models 85W66 Maybe required to select multiple indoor blower speeds

508090-01Issue 2032Page 4 of 40
REFRIGERATION DATA
Model Factory Refrig.
Charge (Oz.)* TXV Refrigerant Line Size Outdoor Unit
Connection
Indoor Unit
Connection
Suction Liquid Suction Liquid Suction Liquid
4HP14B18P-50 112 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
4HP14B24P-50 115 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
4HP14B30P-50 115 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
4HP14B36P-50 161 H4TXV02 7/8 3/8 7/8 3/8 3/4 3/8
4HP14B42P-50 171 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
4HP14B48P-50 171 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
4HP14B60P-50 193 H4TXV03 11/8 3/8 7/8 3/8 7/8 3/8
* Factory charged for 15 feet of line set; adjust per installation instructions.
Refrigerant charge also varies with indoor unit; Refer to refrigerant charge label
COOLING PERFORMANCE WITH DTC1
Outdoor Model
Indoor Model Cooling Heating
Evap. Coil or Air
Handler3SEER EER AHRI Rated Capacity2
Sensible
Capacity HSPF
47° 17°
Btuh COP Btuh COP
4HP14B18P-50 BCE5C18MA4X 14.00 12.00 18000 14200 8.20 17600 3.5 10800 2.3
4HP14B24P-50 BCE5C24MA4X 14.00 12.00 23800 19000 8.20 22200 3.6 14300 2.4
4HP14B30P-50 BCE5C30MA4X 14.00 11.50 29600 23200 8.20 27000 3.5 17500 2.4
4HP14B36P-50 BCE5C36MA4X 14.00 12.00 33400 25800 8.20 31200 3.4 20000 2.4
4HP14B42P-50 BCE5C42MA4X 14.00 12.00 40500 29500 8.20 39500 3.2 26200 2.4
4HP14B48P-50 BCE5C48MA4X 14.00 11.50 47500 36000 8.20 46000 3.3 29000 2.4
4HP14B60P-50 BCE5C60MA4X 14.00 12.00 56500 41500 8.20 54500 3.5 35400 2.6
Note:
1 DTC = Designated Tested Combination
2 Certified in accordance with Unitary Air Conditioner Certification Program, which is based on AHRI Standard 210/240
3 A blower time delay relay is standard on all Allied Air Enterprises furnace and AH products.
FAN BLADE
Model Diameter
(in.) # of Blades Pitch Part #
4HP14B18P-50 22 3 20 82W58
4HP14B24P-50 22 3 20 82W58
4HP14B30P-50 22 3 26 43W37
4HP14B36P-50 22 3 28 16L95
4HP14B42P-50 26 4 22 21W10
4HP14B48P-50 26 4 22 21W10
4HP14B60P-50 26 4 22 21W10

508090-01 Issue 2032 Page 5 of 40
Technical Specications - 4HP15L
MODEL NUMBER GUIDE
Minor Revision Code
Major Revision Code
50 = Omniguard®
Electrical
P - 208-230V/60hz/1Ph
Tonnage
18, 24, 30, 36, 42, 48, 60
Refrigerant
4 = R410A
HP
Heat Pump
SEER
15
Tier
L = Louvered
4 HP 15 L 24 P - 50 A
PHYSICAL AND ELECTRICAL DATA
Model Voltage/Hz/Phase Voltage
Range
Min.
Circuit
Amp.
Max. Over
Current
Device
(amps)
Compressor Outdoor Fan Motor
Rated
Load
(amps)
Locked
Rotor
(amps)
Full
Load
(amps)
Rated
HP
Nom.
RPM
4HP15L18P-50 208-230/60/1 197-253 12.3 20 9.0 48 1.1 1/6 825
4HP15L24P-50 208-230/60/1 197-253 17.9 30 13.4 58 1.1 1/6 825
4HP15L30P-50 208-230/60/1 197-253 17.1 25 12.8 64 1.1 1/6 825
4HP15L36P-50 208-230/60/1 197-253 18.7 30 14.1 77 1.1 1/6 825
4HP15L42P-50 208-230/60/1 197-253 25.8 45 19.2 123.9 1.8 1/4 825
4HP15L48P-50 208-230/60/1 197-253 26.2 45 19.6 130 1.8 1/4 825
4HP15L60P-50 208-230/60/1 197-253 29.6 50 22.2 127.9 1.8 1/4 825
UNIT DIMENSIONS (IN.)
Model
Dimensions (in.) Shipping
Weight
(lbs.)
A - Width B - Depth C - Height
4HP15L18P-50 28.25 28.25 43.25 182
4HP15L24P-50 28.25 28.25 43.25 184
4HP15L30P-50 28.25 28.25 43.25 183
4HP15L36P-50 28.25 28.25 37.25 199
4HP15L42P-50 32.25 32.25 37.25 249
4HP15L48P-50 32.25 32.25 37.25 252
4HP15L60P-50 32.25 32.25 43.25 270
Note:
Dimensions listed are unit sizes w/o packaging
Weights listed are unit weights with packaging

508090-01Issue 2032Page 6 of 40
SOUND RATINGS
Model Sound Power1
Estimated Sound Pressure (dBA)2
Approximate Distance3
3.3 Feet
(1 Meter)
6.6 Feet
(2 Meters)
9.8 Feet
(3 Meters)
4HP15L18P-50 76 68 62 58
4HP15L24P-50 76 68 62 58
4HP15L30P-50 76 68 62 58
4HP15L36P-50 76 68 62 58
4HP15L42P-50 79 71 65 61
4HP15L48P-50 80 72 66 62
4HP15L60P-50 80 72 66 62
1. Rated in accordance with AHRI standard 270 (2015). AHRI Standard 270 establishes a method of rating outdoor unitary equipment in terms of Sound Power.
2. Rated in accordance with AHRI standard 275 (2010). AHRI Standard 275 provides the calculations for estimating the A-Weighted Sound Pressure at a given distance from the equipment.
That is a more useful number because that is what humans will hear.
3. Based only on distance factor; other factors may change this value such as:
• Unit location (reflective surfaces adjacent to the unit)
• Barrier shielding sources
• Sound path/elevation
• Outside noise sources
ACCESSORIES
System Accessory Where Used Kit Number Purpose
Liquid Line Solenoid All models 60M52 Prevents liquid migration to the compressor especially for high liquid riser
applications
Low Ambient HP Units (cooling
operation) All models 54M89 Enables cooling demand down to 30 °F. Will require freeze stat, CC heater and TXV
Mild Ambient (heating operation) All models 11B97 Enables heating demand above 60 °F ambient
Cold Weather Control Board Integrated Feature To allow unit to operate in very low ambient conditions
Fossil Fuel Kit (Heat Pump Only) All models 1.841185 Required for furnace with heat pump installations
Hard Start
24 & 36 10J42 Scroll compressors usually do not require hard start; maybe needed for
utility brown-out or low voltage areas
48 & 60 81J69
Crankcase Heater
18, 24, 30 93M04
Prevents liquid migration to compressor in cold weather
36, 42, 48, 60 Factory Installed
Sound Cover
18, 24, 30, 36 14W00
Lowers compressor sound level
42, 48, 60 14W01
Loss of Charge Kit Factory Installed Protects the compressor if refrigerant charge is too low
Additional System Accessories (indoor section)
TXV Kit
18, 24, 30 H4TXV01
TXVs provide superior refrigerant ow control, comfort and e󰀩ciency
compared to pistons
36, 42, 48 H4TXV02
60 H4TXV03
Outdoor Thermostat - Electric Heat All models 10Z23 Prevents electric heat operation above specic ambient conditions
Single Point Power Supply All models 21H39 Provide single power source in one junction box
Auxiliary Blower Relay All models 85W66 Maybe required to select multiple indoor blower speeds

508090-01 Issue 2032 Page 7 of 40
REFRIGERATION DATA
Model Factory Refrig.
Charge (Oz.)* TXV Refrigerant Line Size Outdoor Unit
Connection
Indoor Unit
Connection
Suction Liquid Suction Liquid Suction Liquid
4HP15L18P-50 112 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
4HP15L24P-50 115 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
4HP15L30P-50 115 H4TXV01 3/4 3/8 3/4 3/8 3/4 3/8
4HP15L36P-50 161 H4TXV02 7/8 3/8 7/8 3/8 3/4 3/8
4HP15L42P-50 171 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
4HP15L48P-50 171 H4TXV02 7/8 3/8 7/8 3/8 7/8 3/8
4HP15L60P-50 193 H4TXV03 11/8 3/8 7/8 3/8 7/8 3/8
* Factory charged for 15 feet of line set; adjust per installation instructions.
Refrigerant charge also varies with indoor unit; Refer to refrigerant charge label
COOLING PERFORMANCE WITH DTC1
Outdoor Model
Indoor Model Cooling Heating
Evap. Coil or Air
Handler3SEER EER AHRI Rated Capacity2
Sensible
Capacity HSPF
47° 17°
Btuh COP Btuh COP
4HP15L18P-50 BCE5C18MA4X 14.00 12.00 18000 14200 8.20 17600 3.5 10800 2.3
4HP15L24P-50 BCE5C24MA4X 14.00 12.00 23800 19000 8.20 22200 3.6 14300 2.4
4HP15L30P-50 BCE5C30MA4X 14.00 11.50 29600 23200 8.20 27000 3.5 17500 2.4
4HP15L36P-50 BCE5C36MA4X 14.00 12.00 33400 25800 8.20 31200 3.4 20000 2.4
4HP15L42P-50 BCE5C42MA4X 14.00 12.00 40500 29500 8.20 39500 3.2 26200 2.4
4HP15L48P-50 BCE5C48MA4X 14.00 11.50 47500 36000 8.20 46000 3.3 29000 2.4
4HP15L60P-50 BCE5C60MA4X 14.00 12.00 56500 41500 8.20 54500 3.5 35400 2.6
Note:
1 DTC = Designated Tested Combination
2 Certified in accordance with Unitary Air Conditioner Certification Program, which is based on AHRI Standard 210/240
3 A blower time delay relay is standard on all Allied Air Enterprises furnace and AH products.
FAN BLADE
Model Diameter
(in.) # of Blades Pitch Part #
4HP15L18P-50 22 3 20 82W58
4HP15L24P-50 22 3 20 82W58
4HP15L30P-50 22 3 26 43W37
4HP15L36P-50 22 3 28 16L95
4HP15L42P-50 26 4 22 21W10
4HP15L48P-50 26 4 22 21W10
4HP15L60P-50 26 4 22 21W10

508090-01Issue 2032Page 8 of 40
Technical Specications - Past Models
MODEL NUMBER GUIDE
Minor Revision Code
Major Revision Code
Electrical
P - 208-230V/60hz/1Ph
Tonnage
18, 24, 30, 36, 42, 48, 60
Refrigerant
4 = R410A
HP
Heat Pump
SEER
14
Tier
L = Louvered
B = Wire Guard
4 HP 14 L 24 P - 10 A
PHYSICAL AND ELECTRICAL DATA
Model Voltage/Hz/
Phase
Voltage
Range
Min.
Circuit
Amp.
Max. Over
Current
Device
(amps)
Compressor Outdoor Fan Motor
Refrig.
Charge+
Sound
Rating
(dBA)
Rated
Load
(amps)
Locked
Rotor
(amps)
Full
Load
(amps)
Rated
HP
Nom.
RPM
4HP14*18P-10A 208-230/60/1 197-253 12.2 20 9.0 48 1.0 1/6 825 93 74
4HP14*24P-10A 208-230/60/1 197-253 17.9 30 13.5 58 1.1 1/6 825 94 76
4HP14*30P-10A 208-230/60/1 197-253 17.1 25 12.8 64 1.1 1/6 825 90 76
4HP14*36P-10A 208-230/60/1 197-253 18.7 30 14.1 77 1.1 1/6 825 150 76
4HP14*42P-10A 208-230/60/1 197-253 24.2 40 18.0 112 1.8 1/3 825 184 79
4HP14*48P-10A 208-230/60/1 197-253 29.0 50 21.8 117 1.8 1/3 825 161 80
4HP14*60P-10A 208-230/60/1 197-253 29.4 50 22.1 125 1.8 1/3 825 197 80
Note:
+ Factory charged for 15 ft. of line set. Adjust per installation instructions.
UNIT DIMENSIONS (IN.) AND WEIGHT
Model
Dimensions (in.) Shipping
Weight
(lbs.)
A - Width B - Depth C - Height
4HP14*18P-10A 28.25 28.25 37 175
4HP14*24P-10A 28.25 28.25 37 177
4HP14*30P-10A 28.25 28.25 37 178
4HP14*36P-10A 28.25 28.25 33 202
4HP14*42P-10A 32.25 32.25 37 272
4HP14*48P-10A 32.25 32.25 37 273
4HP14*60P-10A 32.25 32.25 43 297
Note:
Dimensions listed are unit sizes w/o packaging
Weights listed are unit weights with packaging

508090-01 Issue 2032 Page 9 of 40
LINE SETS
Model
Condenser Refrigerant Connection
Refrigerant Line Size
Outdoor
Suction Liquid Suction Liquid
4HP14*18P-10A 3/4 3/8 3/4 3/8
4HP14*24P-10A 3/4 3/8 3/4 3/8
4HP14*30P-10A 3/4 3/8 3/4 3/8
4HP14*36P-10A 7/8 3/8 7/8 3/8
4HP14*42P-10A 7/8 3/8 7/8 3/8
4HP14*48P-10A 7/8 3/8 7/8 3/8
4HP14*60P-10A 7/8 3/8 1-1/8 3/8
ACCESSORIES
System Accessory Where Used Kit Number
Crankcase Heater
18, 24, 30, 36 93M04
42, 48, 60 93M05 (Factory Installed)
Compressor Low Ambient Kit All models 45F08
Sound Blanket
18, 24, 30, 36 14W00 (Factory Installed)
42, 48, 60 14W01 (Factory Installed)
Short Cycle Protector All models Control Board Feature
Freezestat
3/8 tubing 93G35
5/8 tubing 50A93
Time Delay Relay All Models Control Board Feature
Loss of Charge Kit All Models 84M23 (Factory Installed)
Hard Start Kit
18 10J42
24, 30, 36, 42, 48, 60 88M91
Fossil Fuel All Models AFOSL500
TXV Kit
18, 24, 30 H4TXV01
36, 42, 48 H4TXV02
60 H4TXV03
FAN BLADE
Model Diameter
(in.) # of Blades Pitch Part #
4HP14*18P-10A 22 3 20 82W58
4HP14*24P-10A 22 3 20 82W58
4HP14*30P-10A 22 3 26 43W37
4HP14*36P-10A 22 3 28 43W37
4HP14*42P-10A 26 4 22 21W10
4HP14*48P-10A 26 4 22 21W10
4HP14*60P-10A 26 4 22 21W10

508090-01Issue 2032Page 10 of 40
MODEL NUMBER GUIDE
Minor Revision Code
Major Revision Code
Electrical
P - 208-230V/60hz/1Ph
Tonnage
18, 24, 30, 36, 42, 48, 60
Refrigerant
4 = R410A
HP
Heat Pump
SEER
14
Tier
L = Louvered
B = Wire Guard
4 HP 14 L 24 P - 7 A
PHYSICAL AND ELECTRICAL DATA
Model Voltage/Hz/
Phase
Voltage
Range
Min.
Circuit
Amp.
Max. Over
Current
Device
(amps)
Compressor Outdoor Fan Motor
Refrig.
Charge+
Sound
Rating
(dBA)
Rated
Load
(amps)
Locked
Rotor
(amps)
Full
Load
(amps)
Rated
HP
Nom.
RPM
4HP14L18P-8A
4HP14B18P-8A 208-230/60/1 197-253 12.2 20 9.0 48 1.0 1/6 825 93 74
4HP14L24P-8A
4HP14B24P-7A 208-230/60/1 197-253 17.9 30 13.5 58 1.1 1/6 825 94 76
4HP14L30P-8A
4HP14B30P-7A 208-230/60/1 197-253 17.1 25 12.8 64 1.1 1/6 825 90 76
4HP14L36P-8A
4HP14B36P-7A 208-230/60/1 197-253 18.7 30 14.1 77 1.1 1/6 825 150 76
4HP14L42P-8A
4HP14B42P-7A 208-230/60/1 197-253 24.2 40 18.0 112 1.8 1/3 825 184 79
4HP14L48P-8A
4HP14B48P-7A 208-230/60/1 197-253 29.0 50 21.8 117 1.8 1/3 825 161 80
4HP14L60P-8A
4HP14B60P-7A 208-230/60/1 197-253 29.4 50 22.1 125 1.8 1/3 825 197 80
Note:
+ Factory charged for 15 ft. of line set. Adjust per installation instructions.
UNIT DIMENSIONS (IN.) AND WEIGHT
Model Dimensions (in.) Shipping Weight
(lbs.)
A - Width B - Depth C - Height
4HP14L18P-8A
4HP14B18P-8A 28.25 28.25 37 175
4HP14L24P-8A
4HP14B24P-7A 28.25 28.25 37 177
4HP14L30P-8A
4HP14B30P-7A 28.25 28.25 37 178
4HP14L36P-8A
4HP14B36P-7A 28.25 28.25 33 202
4HP14L42P-8A
4HP14B42P-7A 32.25 32.25 37 272
4HP14L48P-8A
4HP14B48P-7A 32.25 32.25 37 273
4HP14L60P-8A
4HP14B60P-7A 32.25 32.25 43 297
Note:
Dimensions listed are unit sizes w/o packaging
Weights listed are unit weights with packaging

508090-01 Issue 2032 Page 11 of 40
LINE SETS
Model
Condenser Refrigerant Connection Refrigerant Line Size
Outdoor
Suction Liquid Suction Liquid
4HP14L18P-8A
4HP14B18P-8A 3/4 3/8 3/4 3/8
4HP14L24P-8A
4HP14B24P-7A 3/4 3/8 3/4 3/8
4HP14L30P-8A
4HP14B30P-7A 3/4 3/8 3/4 3/8
4HP14L36P-8A
4HP14B36P-7A 7/8 3/8 7/8 3/8
4HP14L42P-8A
4HP14B42P-7A 7/8 3/8 7/8 3/8
4HP14L48P-8A
4HP14B48P-7A 7/8 3/8 7/8 3/8
4HP14L60P-8A
4HP14B60P-7A 7/8 3/8 1-1/8 3/8
ACCESSORIES
System Accessory Where Used Kit Number
Crankcase Heater 18, 24, 30, 36 93M04
42, 48, 60 93M05 (Factory Installed)
Compressor Low Ambient Kit All models 45F08
Sound Blanket 18, 24, 30, 36 14W00 (Factory Installed)
42, 48, 60 14W01 (Factory Installed)
Short Cycle Protector All models Control Board Feature
Freezestat 3/8 tubing 93G35
5/8 tubing 50A93
Time Delay Relay All Models Control Board Feature
Loss of Charge Kit All Models 84M23 (Factory Installed)
Hard Start Kit 18 10J42
24, 30, 36, 42, 48, 60 88M91
Fossil Fuel All Models AFOSL500
TXV Kit
18, 24, 30 H4TXV01
36, 42, 48 H4TXV02
60 H4TXV03
FAN BLADE
Model Diameter
(in.) # of Blades Pitch Part #
4HP14L18P-8A
4HP14B18P-8A 22 3 20 82W58
4HP14L24P-8A
4HP14B24P-7A 22 3 20 82W58
4HP14L30P-8A
4HP14B30P-7A 22 3 26 43W37
4HP14L36P-8A
4HP14B36P-7A 22 3 28 43W37
4HP14L42P-8A
4HP14B42P-7A 26 4 22 21W10
4HP14L48P-8A
4HP14B48P-7A 26 4 22 21W10
4HP14L60P-8A
4HP14B60P-7A 26 4 22 21W10

508090-01Issue 2032Page 12 of 40
Parts Arrangement
COMPRESSOR HARNESS
LIQUID LINE SERVICE
VALVE
VAPOR LINE
SERVICE VALVE
(ANGLE-TYPE - ALL
OTHER SIZES)
BI-FLOW FILTER
DRIER
DISCHARGE
LINE
HIGH PRESSURE SWITCH (S4)
COMPRESS0R
TRUE SUCTION
PORT
CHECK /
EXPANSION VALVE
DEFROST THERMOSTAT
(S6)
EQUALIZER LINE
MUFFLER
REVERSING
VALVE (L1)
REVERSING VALVE
SOLENOID
LOW PRESSURE
SWITCH (S87)
NOTE — PLUMBING LAYOUT AND COMPRESSOR TYPE MAY VARY
SLIGHTLY BETWEEN MODEL SIZES.
GROUND
LUG
CONTACTOR
(K-1)
CONTROL
CONTROL WIRE
LOOP
CUTOUT FOR
HIGH VOLTAGE
CONDUIT
DEFROST
CONTROL
(CMC1)
DUAL RUN
CAPACITOR
(C12) SWITCH
COVER
THERMAL
PROTECTION SWITCH
(S173) (ONLY ON
UNITS USING
EXTERNAL SWITCH)
CRANKCASE HEATER THERMOSTAT
(S40) (-036, -042, -048, -060 UNITS ONLY)
CRANKCASE
CASE HEATER
(HR1) (-036,
-042, -048, -060
UNITS ONLY)
VAPOR LINE
SERVICE VALVE
(BALL-TYPE -060
ONLY)

508090-01 Issue 2032 Page 13 of 40
General Information
These instructions are intended as a general guide and do
not supersede national or local codes in any way. Consult
authorities having jurisdiction before installation.
Operating Gauge Set and Service Valves
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves
and protective clothing.
CAUTION
Torque Requirements
When servicing or repairing heating, ventilating, and
air conditioning components, ensure the fasteners are
appropriately tightened. Table 1 lists torque values for
fasteners.
Only use Allen wrenches of su󰀩cient hardness (50Rc
- Rockwell Harness Scale minimum). Fully insert the
wrench into the valve stem recess.
Service valve stems are factory-torqued (from 9 ft-lbs
for small valves, to 25 ft-lbs for large valves) to prevent
refrigerant loss during shipping and handling. Using an
Allen wrench rated at less than 50Rc risks rounding
or breaking o󰀨 the wrench, or stripping the valve stem
recess.
IMPORTANT
To prevent stripping of the various caps used, the
appropriately sized wrench should be used and tted
snugly over the cap before tightening.
IMPORTANT
When servicing or repairing HVAC components, ensure
the fasteners are appropriately tightened. Table 1 provides
torque values for fasteners.
Parts Recommended Torque
Service valve cap 8 ft.-lb. 11 NM
Sheet metal screws 16 ft.-lb. 2 NM
Machine screws #10 28 ft.-lb. 3 NM
Compressor bolts 90 ft.-lb. 10 NM
Gauge port seal cap 8 ft.-lb. 11 NM
Table 1. Torque Requirements
Using Manifold Gauge Set
When checking the system charge, only use a manifold
gauge set that features low loss anti-blow back ttings.
Manifold gauge set used with HFC-410A refrigerant
systems must be capable of handling the higher system
operating pressures. The gauges should be rated for use
with pressures of 0 - 800 psig on the high side and a low
side of 30” vacuum to 250 psig with dampened speed to
500 psi. Gauge hoses must be rated for use at up to 800
psig of pressure with a 4000 psig burst rating.
Operating Service Valves
The liquid and vapor line service valves are used for
removing refrigerant, ushing, leak testing, evacuating,
checking charge and charging.
Liquid and Suction Line Service Valves
The liquid line and suction line service valves (see Figure
1) and service ports are used for leak testing, evacuation,
charging, and checking charge.
Each valve is equipped with a service port which has a
factory-installed Schrader valve. A service port cap protects
the Schrader valve from contamination and serves as the
primary leak seal.
Figure 1.

508090-01Issue 2032Page 14 of 40
To Access the Schrader Port:
1. Remove the service port cap with an adjustable
wrench.
2. Connect gauge to the service port.
3. When testing is completed, replace service port cap.
Tighten nger tight, then an additional 1/6 turn.
To Open Liquid or Suction Line Service Valve:
1. Remove stem cap with an adjustable wrench.
2. Use service wrench with a hex-head extension to back
the stem out counterclockwise as far as it will go. Use a
3/16” hex head extension for liquid line service valves
and a 5/16” extension for suction line service valves.
3. Replace the stem cap. Tighten nger tight, then tighten
an additional 1/6 turn.
To Close Liquid or Suction Line Service Valve:
1. Remove the stem cap with an adjustable wrench.
2. Use a service wrench with a hex-head extension to
turn the stem clockwise to seat the valve. Tighten
rmly.
3. Replace the stem cap. Tighten nger tight, then tighten
an additional 1/6 turn.
Suction Line (Ball Type) Service Valve
Suction line (ball type) service valves function the same
way as the other valves; the di󰀨erence is in the construction
(see Figure 2).
The ball valve is equipped with a service port with a factory-
installed Schrader valve. A service port cap protects the
Schrader valve from contamination and serves as the
primary seal.
Figure 2.
Installation
NOTE: In some cases, noise in the living area has been
traced to gas pulsations from improper installation of
equipment.
• Locate unit away from windows, patios, decks, etc.
where unit operation sounds may disturb customer.
• Leave some slack between structure and unit to
absorb vibration.
• Place a sound-absorbing material, such as Isomode,
under the unit if it will be installed in a location or
position that will transmit sound or vibration to the
living area or adjacent buildings.
• Install the unit high enough above the ground or roof to
allow adequate drainage of defrost water and prevent
ice buildup.
• In heavy snow areas, do not locate the unit where
drifting snow will occur. The unit base should be
elevated above the depth of average snows.
NOTE: Elevation of the unit may be accomplished
by constructing a frame using suitable materials. If a
support frame is constructed, it must not block drain
holes in unit base.
• When installed in areas where low ambient
temperatures exist, locate unit so winter prevailing
winds do not blow directly into outdoor coil.
• Locate unit away from overhanging roof lines which
would allow water or ice to drop on, or in front of, coil
or into unit.
When outdoor unit is connected to factory-approved indoor
unit, outdoor unit contains system refrigerant charge for
operation with matching indoor unit when connected by 15
ft. of eld-supplied tubing. For proper unit operation, check
refrigerant charge using charging information located on
control box cover.
Outdoor Section
Zoning ordinances may govern the minimum distance the
condensing unit can be installed from the property line.
Install on a Solid, Level Mounting Pad
The outdoor section is to be installed on a solid foundation.
This foundation should extend a minimum of 2” (inches)
beyond the sides of the outdoor section. To reduce the
possibility of noise transmission, the foundation slab
should NOT be in contact with or be an integral part of the
building foundation. See Figure 3.
If conditions or local codes require the unit be attached to
pad or mounting frame, tie down bolts should be used and
secured to unit base pan.

508090-01 Issue 2032 Page 15 of 40
30” around
Control
Box
24”
6”*
Figure 4.
NOTE: See Table 2 for specic minimum clearance guidelines.
DO LOCATE THE UNIT:
• With proper clearances on sides and top of unit
• On a solid, level foundation or pad (unit must be level
to within ± 1/4 in./ft. per compressor manufacturer
specications)
• To minimize refrigerant line lengths
DO NOT LOCATE THE UNIT:
• On brick, concrete blocks or unstable surfaces
• Near clothes dryer exhaust vents
• Near sleeping area or near windows
• Under eaves where water, snow or ice can fall directly
on the unit
• With clearance less than 2 ft. from a second unit
• With clearance less than 4 ft. on top of unit
Operating Ambient
The minimum outdoor operating ambient in cooling mode
is 55°F, and the maximum outdoor operating ambient in
cooling mode is 125°F. The maximum outdoor operating
ambient in heating mode is 66°F.
Rooftop Installations
Install unit at a minimum of 6” above surface of the roof
to avoid ice buildup around the unit. Locate the unit
above a load bearing wall or area of the roof that can
adequately support the unit. Consult local codes for rooftop
applications.
If unit cannot be mounted away from prevailing winds, a
wind barrier should be constructed. Due to variation in
installation applications, size and locate barrier according
to the best judgment of the installer.
Discharge Air
Mounting Slab
Ground Level
Building
Structure
Mounting slab must slope slightly away from
building, not to exceed 1/4” per foot.
Figure 3. Slab Mounting
Elevate Unit
Accumulation of water and ice in base pan may cause
equipment damage.
CAUTION
Elevate unit per local climate and code requirements to
provide clearance above estimated snowfall level and
ensure adequate drainage of unit. Use snow stand in areas
where prolonged freezing temperatures are encountered.
If conditions or local codes require the unit be attached to
pad or mounting frame, tie down bolts should be used and
fastened through knockouts provided in unit base pan.
Clearance Requirements
When installing, allow su󰀩cient space for airow clearance,
wiring, refrigerant piping, and service. For proper airow,
quiet operation and maximum e󰀩ciency. Position so water,
snow, or ice from roof or eaves cannot fall directly on unit.
Refer to Table 2 for installation clearances.
Location Minimum Clearance
Service box 30”
Top of unit* 48”
Between units 24”
Against wall 6”
* Maximum so󰀩t overhang is 36”.
NOTE: At least one side should be unobstructed by a wall or
other barrier.
Table 2. Clearances

508090-01Issue 2032Page 16 of 40
Refrigeration Piping
Use only refrigerant grade copper tubes.
• Split systems may be installed with up to 50 feet of
line set (no more than 20 feet vertical) without special
consideration (see long line set guidelines).
• Ensure that vapor and liquid tube diameters are
appropriate to capacity of unit.
• Run refrigerant tubes as directly as possible by
avoiding unnecessary turns and bends.
• When passing refrigerant tubes through the wall, seal
opening with RTV or other silicon-based caulk.
• Avoid direct tubing contact with water pipes, duct work,
oor joists, wall studs, oors, walls, and any structure.
• Do not suspend refrigerant tubing from joists and
studs with a rigid wire or strap that comes in direct
contact with tubing.
• Ensure that tubing insulation is pliable and completely
surrounds vapor tube.
It is important that no tubing be cut or seals broken until you
are ready to actually make connections to the evaporator
and to the condenser section. DO NOT remove rubber
plugs or copper caps from the tube ends until ready to
make connections at evaporator and condenser. Under no
circumstances leave the lines open to the atmosphere for
any period of time, if so unit requires additional evacuation
to remove moisture.
Capacity
Liquid Vapor
Connections
Dia.
Tube
Dia.
Connections
Dia.
Tube
Dia.
-018 3/8” 3/8” 3/4” 3/4”
-024 3/8” 3/8” 3/4” 3/4”
-030 3/8” 3/8” 3/4” 3/4”
-036 3/8” 3/8” 7/8” 7/8”
-042 3/8” 3/8” 7/8” 7/8”
-048 3/8” 3/8” 7/8” 7/8”
-060 3/8” 3/8” 7/8” *1-1/8”
* Field supplied 7/8 x 1-1/8 connector required on both ends
of vapor tubing.
Table 3. Recommended Liquid & Vapor Tube
Diameters (in.)
Be extra careful with sharp bends. Tubing can “kink” very
easily, and if this occurs, the entire tube length will have
to be replaced. Extra care at this time will eliminate future
service problems.
It is recommended that vertical suction risers not be up-
sized. Proper oil return to the compressor should be
maintained with suction gas velocity.
Filter Drier
The lter drier is very important for proper system operation
and reliability. If the drier is shipped loose, it must be
installed by the installer in the eld. Unit warranty will be
void, if the drier is not installed.
Installation of Line Sets
DO NOT fasten liquid or suction lines in direct contact with
the oor or ceiling joist. Use an insulated or suspension
type of hanger. Keep both lines separate, and always
insulate the suction line. Liquid line runs (30 feet or more)
in an attic will require insulation. Route refrigeration line
sets to minimize length.
DO NOT let refrigerant lines come in direct contact with
foundation. When running refrigerant lines through the
foundation or wall, openings should allow for a sound
and vibration absorbing material to be placed or installed
between tubing and foundation. Any gap between
foundation or wall and refrigerant lines should be lled with
a vibration damping material.
If ANY refrigerant tubing is required to be buried by state
or local codes, provide a 6 inch vertical rise at service
valve.
CAUTION

508090-01 Issue 2032 Page 17 of 40
Figure 5. Line Set Installation
ANCHORED HEAVY NYLON
WIRE TIE OR AUTOMOTIVE
MUFFLER‐TYPE HANGER
STRAP LIQUID LINE TO
VAPOR LINE
WALL
STUD
LIQUID LINE
NON-CORROSIVE
METAL SLEEVE
VAPOR LINE - WRAPPED
IN ARMAFLEX
AUTOMOTIVE
MUFFLER‐TYPE HANGER
REFRIGERANT LINE SET — TRANSITION
FROM VERTICAL TO HORIZONTAL
Line Set Isolation — The following illustrations are
examples of proper refrigerant line set isolation:
STRAPPING
MATERIAL (AROUND
VAPOR LINE ONLY)
TAPE OR
WIRE TIE
WIRE TIE (AROUND
VAPOR LINE ONLY)
FLOOR JOIST OR
ROOF RAFTER
TAPE OR
WIRE TIE
To hang line set from joist or rafter, use either metal strapping material
or anchored heavy nylon wire ties.
8 FEET (2.43 METERS)
STRAP THE VAPOR LINE TO THE JOIST
OR RAFTER AT 8 FEET (2.43 METERS)
INTERVALS THEN STRAP THE LIQUID
LINE TO THE VAPOR LINE.
FLOOR JOIST OR
ROOF RAFTER
REFRIGERANT LINE SET — INSTALLING
HORIZONTAL RUNS
NOTE — Similar installation practices should be used if line set is
to be installed on exterior of outside wall.
PVC
PIPE
FIBERGLASS
INSULATION
CAULK
OUTSIDE
WALL
VAPOR LINE WRAPPED
WITH ARMAFLEX
LIQUID
LINE
OUTSIDE WALL LIQUID LINE
VAPOR LINE
WOOD BLOCK
BETWEEN STUDS
STRAP
WOOD BLOCK
STRAP
SLEEVE
WIRE TIE
WIRE TIE
WIRE TIE
INSIDE WALL
REFRIGERANT LINE SET — INSTALLING
VERTICAL RUNS (NEW CONSTRUCTION SHOWN)
INSTALLATION
LINE SET
NOTE — Insulate liquid line when it is routed through areas where the
surrounding ambient temperature could become higher than the
temperature of the liquid line or when pressure drop is equal to or greater
than 20 psig.
NON-CORROSIVE
METAL SLEEVE
IMPORTANT —Refrigerant lines must not contact structure.
NON-CORROSIVE
METAL SLEEVE
8 FEET (2.43 METERS)
IMPORTANT —Refrigerant lines must not contact wall
WARNING — Polyol ester (POE) oils used with HFC-410A
refrigerant absorb moisture very quickly. It is very important that the
refrigerant system be kept closed as much as possible. DO NOT
remove line set caps or service valve stub caps until you are ready
to make connections.

508090-01Issue 2032Page 18 of 40
LOW
HIGH
EXISTING
INDOOR
UNIT
GAUGE
MANIFOLD
CYLINDER CONTAINING
CLEAN R-410A TO BE
USED FOR FLUSHING
(Positioned to deliver liquid
refrigerant)
LIQUID LINE SERVICE
VALVE
INLET
DISCHARGE
TANK
RETURN
CLOSED
OPENED
RECOVER
Y
CYLINDER
RECOVERY MACHINE
NEW
OUTDOOR
UNIT
VAPOR LINE
SER
VICE VALVE
VAPOR
LIQUID
1
A
B
C
D
ACylinder with clean R-410A (positioned to deliver liquid refrigerant) to the
vapor service valve.
BRefrigerant gauge set (low side) to the liquid line valve.
CRefrigerant gauge set center port to inlet on the recovery machine with
an empty recovery tank connected to the gauge set.
DConnect recovery tank to recovery machine per machine instructions.
Figure 6.
1. Connect gauges and equipment as shown in Figure 6.
2. Set the recovery machine for liquid recovery and start
the recovery machine. Open the gauge set valves to
allow the recovery machine to pull a vacuum on the
existing system line set and indoor unit coil.
3. Position the cylinder of clean R-410A for delivery of
liquid refrigerant and open its valve to allow liquid
refrigerant to ow into the system through the vapor
line valve. Allow the refrigerant to pass from the
cylinder and through the line set and the indoor unit
coil before it enters the recovery machine.
4. After all of the liquid refrigerant has been recovered,
switch the recovery machine to vapor recovery so
that all of the R-410A vapor is recovered. Allow the
recovery machine to pull the system down to 0.
5. Close the valve on the inverted R-410A drum and the
gauge set valves. Pump the remaining refrigerant out
of the recovery machine and turn the machine o󰀨.
Flushing Line Sets
If the unit will be installed in an existing system that uses
an indoor unit or line sets charged with R-22 refrigerant,
installer must perform the following ushing procedure.
NOTE: Existing system components (including line set
and indoor coil) must be an AHRI match with the unit in
order to fulll unit warranty requirements.
Refrigerant must be reclaimed in accordance with
national and local codes.
WARNING
Do NOT attempt to ush and re-use existing line sets
or indoor coil when the system contains contaminants
(i.e., compressor burn out).
CAUTION
“Clean refrigerant” is any refrigerant in a system that
has not had compressor burnout. If the system has
experienced burnout, it is recommended that the
existing line set and indoor coil be replaced.
NOTE
In lieu of R-410A, an industry-standard ushing agent
may also be used.
NOTE

508090-01 Issue 2032 Page 19 of 40
Refrigerant Piping - Install Indoor Expansion Valve
This outdoor unit is designed for use in systems that include an expansion valve metering device (purchased separately) at
the indoor coil. See the Product Specications for approved expansion valve kit match-ups and application information. The
check expansion valve unit can be installed internal or external to the indoor coil. In applications where an uncased coil is
being installed in a eld-provided plenum, install the check/expansion valve in a manner that will provide access for future
eld service of the expansion valve. Refer to below illustration for reference during installation of expansion valve unit.
1 -Attach the vapor line sensing bulb in the proper
orientation as illustrated to the right using the clamp and
screws provided.
NOTE - Though it is preferred to have the sensing bulb
installed on a horizontal run of the vapor line, installation
on a vertical run of piping is acceptable if necessary.
NOTE - Confirm proper thermal contact between vapor
line and check/expansion bulb before insulating the
sensing bulb once installed.
2 -Connect the equalizer line from the check expansion
valve to the equalizer vapor port on the vapor line. Finger
tighten the flare nut plus 1/8 turn (7 ft-lbs) as illustrated
below.
TWO PIECE
PATCH PLATE
(UNCASED
COIL ONLY)
VAPOR
LINE
LIQUID LINE
ORIFICE
HOUSING
DISTRIBUTOR
TUBES
LIQUID LINE
MALE EQUALIZER LINE
FITTING (SEE
EQUALIZER LINE
INSTALLATION FOR
FURTHER DETAILS)
SENSING
LINE
EQUALIZER
LINE
EXPANSION
VALVE
TEFLON®
RING
(Uncased Coil Shown)
Sensing bulb insulation is required if
mounted external to the coil casing. sensing
bulb installation for bulb positioning.
STUB
END
TEFLON®
RING
LIQUID LINE
ASSEMBLY WITH
BRASS NUT
DISTRIBUTOR
ASSEMBLY
3 -Install one of the provided Teflon®rings around the
stubbed end of the check expansion valve and lightly
lubricate the connector threads and expose surface of
the Teflon®ring with refrigerant oil.
4 -Attach the stubbed end of the check expansion valve to
the liquid line orifice housing. Finger tighten and use an
appropriately sized wrench to turn an additional 1/2 turn
clockwise as illustrated in the figure above, or tighten to
20 ft-lb.
5 -Place the remaining Te flon®washer around the other
end of the check expansion valve. Lightly lubricate
connector threads and expose surface of the Teflon®
ring with refrigerant oil.
6 -Attach the liquid line assembly to the check expansion
valve. Finger tighten and use an appropriately sized
wrench to turn an additional 1/2 turn clockwise as
illustrated in the figure above or tighten to 20 ft-lb.
ON 7/8” AND LARGER LINES,
MOUNT SENSING BULB AT
EITHER THE 4 OR 8 O'CLOCK
POSITION.
12
ON LINES SMALLER THAN
7/8”, MOUNT SENSING
BULB AT EITHER THE 3 OR
9 O'CLOCK POSITION.
12
BULB
VAPOR LINE
VAPOR LINE
NOTE - NEVER MOUNT THE SENSING BULB ON
BOTTOM OF LINE.
BULB
BULB
BULB
VAPOR LINE
FLARE NUT
COPPER FLARE
SEAL BONNET
MALE BRASS EQUALIZER
LINE FITTING
FLARE SEAL CAP
OR
1
2
3
4
5
6
7
8
9
10
11 12
1/2 Turn
SENSING BULB INSTALLATION
EQUALIZER LINE INSTALLATION
1
2
3
4
5
6
7
8
9
10
11 12
1/8 Turn
1 -Remove and discard either the flare seal cap or flare nut
with copper flare seal bonnet from the equalizer line port
on the vapor line as illustrated in the figure below.
2 -Remove the field-provided
sembly.
INDOOR EXPANSION VALVE INSTALLATION

508090-01Issue 2032Page 20 of 40
ATTACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND VAPOR LINE SERVICE VALVES
OUTDOOR
UNIT
LIQUID LINE
VAPOR LINE
LIQUID LINE SERVICE
VALVE
VAPOR LINE
SERVICE
VALVE
ATTACH
GAUGES
INDOOR
UNIT
VAPOR SERVICE PORT MUST BE OPEN
TO ALLOW EXIT POINT FOR NITROGEN
A -Connect gauge set low pressure side to
liquid line service valve (service port).
B -Connect gauge set center port to bottle of
nitrogen with regulator.
C -Remove core from valve in vapor line
service port to allow nitrogen to escape.
NITROGEN
HIGHLOW USE REGULATOR TO FLOW
NITROGEN AT 1 TO 2 PSIG.
B
A
C
WHEN BRAZING LINE SET TO
SERVICE VALVES, POINT FLAME
AWAY FROM SERVICE VALVE.
Flow regulated nitrogen (at 1 to 2 psig) through the low-side refrigeration gauge set into the liquid line service port valve, and out of the
vapor line service port valve.
CUT AND DEBUR CAP AND CORE REMOVAL
Cut ends of the refrigerant lines square (free from nicks or dents)
and debur the ends. The pipe must remain round. Do not crimp end
of the line.
Remove service cap and core from
both the vapor and liquid line service
ports.
12
LIQUID LINE SERVICE
VALVE
SERVICE
PORT
CORE
SERVICE PORT
CAP
SERVICE
PORT
CORE
SERVICE
PORT CAP
CUT AND DEBUR
LINE SET SIZE MATCHES
SERVICE VALVE CONNECTION
DO NOT CRIMP SERVICE VALVE
CONNECTOR WHEN PIPE IS
SMALLER THAN CONNECTION
3
VAPOR LINE SERVICE
VALVE
COPPER TUBE
STUB
REFRIGERANT LINE
REDUCER
SERVICE VALVE
CONNECTION
LINE SET SIZE IS SMALLER
THAN CONNECTION
Refrigerant Piping - Brazing Procedures
Before brazing, ensure the system is fully
recovered of all refrigerant. Application of a
brazing torch to a pressurized system may
result in ignition of the refrigerant and oil
mixture. Check the high and low pressures
before applying heat.
WARNING
Brazing alloys and ux contain materials which are
hazardous to your health.
Avoid breathing vapors or fumes from brazing
operations. Perform operations only in well-ventilated
areas.
Wear gloves and protective goggles or face shield to
protect against burns.
Wash hands with soap and water after handling brazing
alloys and ux.
WARNING
Use a manifold gauge set designed for use on R-410A
refrigerant systems.
NOTE