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 88-A4AC6001-1F-EN

Section 18. Pressure Curves

PRESSURE CURVES (Refer below table for models)

OUTDOOR TEMPERATURE (Degree F)

OUTDOOR TEMPERATURE (Degree F)

COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F.

TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE.  MEASURE INDOOR WET BULB 
TEMPERATURE, OUTDOOR TEMPERATURE, LIQUID AND SUCTION PRESSURES.  ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); 

LOCATE INDOOR WET BULB (2);  FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN .

EXAMPLE: (1) OUTDOOR TEMP. 82 F. 

                  (2) INDOOR WET BULB 67 F.  

                  (3) AT INTERSECTION

ACTUAL: 

                  (4) LIQUID PRESSURE @ 600 CFM IS 310 PSIG

LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART

                  (5) SUCTION PRESSURE @ 600 CFM IS 141 PSIG

SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART

115

120

125

130

135

140

145

150

155

160

165

170

50

60

70

80

90

100

110

120

(1)

170

220

270

320

370

420

470

520

50

60

70

80

90

100

110

120

(1)

(3)

(3)

(5)

(4)

(2)

(2)

INDOOR ENTERING 

WET BULB CURVES

TOP TO BOTTOM 

71, 67, 63 AND 59 DEG F.

INDOOR ENTERING 

WET BULB CURVES

TOP TO BOTTOM 

71, 67, 63 AND 59 DEG F.

Cooling

@SCFM

A4AC6036B1

A4AC6037B1

OD Model

1000

950

A4AC6042B1

1250

71

63

67

59

LI

QU

ID PRESSURE (PSIG)

SU

CT

ION PRESSURE (PSIG)

Содержание A4AC6018A1000A

Страница 1: ...red equipment by an unqualified person could result in death or serious injury When working on the equipment observe all pre cautions in the literature and on the tags stickers and labels that are att...

Страница 2: ...concerns with R 410A and POE oil reference Retrofit Bulletins SS APG006 EN and APP APG011 EN or APP APG012 EN Extreme caution should be exercised when opening the Liquid Line Service Valve Turn count...

Страница 3: ...ction 7 Refrigerant Line Brazing 9 Section 8 Refrigerant Line Leak Check 11 Section 9 Evacuation 11 Section 10 Service Valves 12 Section 11 Electrical Low Voltage 13 Section 12 Electrical High Voltage...

Страница 4: ...n When mounting the outdoor unit on a roof be sure the roof will support the unit s weight Properly selected isolation is recommended to alleviate sound or vibration transmission to the building struc...

Страница 5: ...onable Position the outdoor unit a minimum of 12 from any wall or surrounding shrubbery to ensure adequate airflow Outdoor unit location must be far enough away from any structure to prevent excess ro...

Страница 6: ...037A 7 8 3 8 3 4 3 8 A4AC6042A 7 8 3 8 7 8 3 8 A4AC6048A 7 8 3 8 7 8 3 8 A4AC6060A 7 8 3 8 7 8 3 8 5 2 Factory Charge The outdoor condensing units are factory charged with the system charge required f...

Страница 7: ...5 4 Refrigerant Line Insulation Important The Vapor Line must always be insulated DO NOT allow the Liquid Line and Vapor Line to come in direct metal to metal contact Vapor Line Liquid Line Insulatio...

Страница 8: ...uld be insulated and isolated Isolate the lines from all ductwork Minimize the number of 90 turns Comply with National State and Local Codes when isolating line sets from joists rafters walls or other...

Страница 9: ...ctwork Isolator Line Set Section 7 Refrigerant Line Brazing 7 1 Braze The Refrigerant Lines STEP 1 Remove caps or plugs Use a deburing tool to debur the pipe ends Clean both internal and external surf...

Страница 10: ...ntil all brazing is completed Important Remove the wet rag before stopping the dry nitrogen purge Note Install drier in Liquid Line NOTE NOTE Precautions should be taken to avoid Precautions should be...

Страница 11: ...TEP 1 Pressurize the refrigerant lines and evaporator coil to 150 PSIG using dry nitrogen 150 PSIG Section 9 Evacuation 9 1 Evacuate the Refrigerant Lines and Indoor Coil Important Do not open the ser...

Страница 12: ...P 3 Replace the valve stem cap to prevent leaks Tighten finger tight plus an additional 1 6 turn 10 2 Open the Liquid Service Valve Important Leak check and evacuation must be completed before opening...

Страница 13: ...G 300 Ft 11 2 Low Voltage Hook up Diagrams R G B W1 W2 R B O Y X2 R G B C O Y W HEAT PUMP SYSTEMS Blue 24 VAC HOT FAN 24 VAC Common SOV COOL HEAT 1st STAGE HEATING 2nd STAGE EMERGENCY HEAT Thermostat...

Страница 14: ...ly one stage of heat If equipped with second stage heat When using a BK enabled comfort control cut BK jumper and bypass Y and YLo at the furnace Connect BK from comfort control to BK of the furnace T...

Страница 15: ...High Voltage Ground Ground the outdoor unit per national state and local code requirements LIVE ELECTRICAL COMPONENTS During installation testing servicing and troubleshooting of this product it may...

Страница 16: ...t s to apply power to the indoor and outdoor units STEP 5 Set system thermostat to ON OFF DONE CANCEL ON OFF STEP 4 Wait one 1 hour before starting the unit if compressor crankcase heater acces sory i...

Страница 17: ...e refrigerant line total length and lift measurements from Section 5 and use line length adders as shown in Section 5 2 if required Total Line Length __________ Ft Vertical Change Lift __________ Ft N...

Страница 18: ...LINE LENGTH FEET REFRIGERANT LINE LIFT FEET 10 20 25 30 40 60 Add 4 of Subcooling Add 3 of Subcooling Add 2 of Subcooling Add 1 of Subcooling Use Design Subcool Value 60 50 40 30 25 20 15 10 0 SUBCOO...

Страница 19: ...ressure should be ap proximately 327 PSI This is the shown as the intersection of the Final Subcooling column and the Liquid Temperature row Table 14 2 8 9 10 11 12 13 14 179 182 185 188 191 195 198 1...

Страница 20: ...en adjustments Note When the Liquid Line Temperature and Gage Pressure approximately match the chart the system is properly charged 2 Remove gages 3 Replace service port caps to prevent leaks Tighten...

Страница 21: ...25 27 28 30 31 95 4 6 8 10 13 14 16 18 20 22 23 25 26 28 29 100 6 8 10 12 13 16 18 20 21 23 25 27 29 105 4 6 7 9 11 13 15 18 20 22 24 26 28 110 4 7 9 11 13 16 18 21 23 26 28 115 6 9 12 14 16 19 21 24...

Страница 22: ...Section 15 Checkout Procedures 15 1 Operational And Checkout Procedures CHECKOUT PROCEDURE After installation has been completed it is recommended that the entire system be checked against the followi...

Страница 23: ...88 A4AC6001 1F EN 23 Section 16 Refrigerant Circuits 1 1 2 Ton Units PRINTED FROM D158513P01 2 3 Ton Units PRINTED FROM D157394P01...

Страница 24: ...24 88 A4AC6001 1F EN 3 1 2 4 Ton Units PRINTED FROM D158514P01 2 1 2 Ton Units Accumulator...

Страница 25: ...88 A4AC6001 1F EN 25 5 Ton Units PRINTED FROM D158515P01...

Страница 26: ...26 88 A4AC6001 1F EN Section 17 Wiring Diagrams 036B 060B Models 018A 048A Models...

Страница 27: ...88 A4AC6001 1F EN 27 036B 060B Models 018A 048A Models...

Страница 28: ...28 88 A4AC6001 1F EN 060A Models...

Страница 29: ...88 A4AC6001 1F EN 29 060A Models...

Страница 30: ...3 READ LIQUID 4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 LIQUID PRESSURE 600 CFM IS 310 PSIG LIQUID PRESSURE SHOULD BE 10 PSI...

Страница 31: ...B 3 READ LIQUID 4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 LIQUID PRESSURE 600 CFM IS 313 PSIG LIQUID PRESSURE SHOULD BE 10 PS...

Страница 32: ...3 READ LIQUID 4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 LIQUID PRESSURE 600 CFM IS 313 PSIG LIQUID PRESSURE SHOULD BE 10 PSI...

Страница 33: ...AD LIQUID 4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 LIQUID PRESSURE 600 CFM IS 303 PSIG LIQUID PRESSURE SHOULD BE 10 PSI OF C...

Страница 34: ...4 OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 LIQUID PRESSURE 600 CFM IS 313 PSIG LIQUID PRESSURE SHOULD BE 10 PSI OF CHART 5 SUC...

Страница 35: ...OR SUCTION 5 PRESSURE IN LEFT COLUMN EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 LIQUID PRESSURE 600 CFM IS 307 PSIG LIQUID PRESSURE SHOULD BE 10 PSI OF CHART 5 SUCT...

Страница 36: ...com The AHRI Certified mark indicates company participation in the AHRI Certification program For verification of individual certified products go to ahridirectory org The manufacturer has a policy o...

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