background image

 88-M4PW004-1B-EN

Section 1. Safety

s

s

WARNING

This information is intended for use by individuals possessing 

adequate backgrounds of electrical and mechanical experience. 

Any attempt to repair a central air conditioning product may 

result in personal injury and/or property damage. The manufac-

ture or seller cannot be responsible for the interpretation of this 

information, nor can it assume any liability in connection with its 

use.

These units use R-410A refrigerant which operates at 50 to 

70% higher pressures than R-22. Use only R-410A approved 

service equipment. Refrigerant cylinders are painted a “Rose” 

color to indicate the type of refrigerant and may contain a “dip” 

tube to allow for charging of liquid refrigerant into the system. 

All R-410A systems use a POE oil that readily absorbs mois-

ture from the atmosphere. To limit this “hygroscopic” action, the 

system should remain sealed whenever possible. If a system 

has been open to the atmosphere for more than 4 hours, the 

compressor oil must be replaced. Never break a vacuum with 

air and always change the driers when opening the system for 

component replacement. For specific handling concerns with R-

410A and POE oil reference Retrofit Bulletins SS-APG006-EN 

and APP-APG011-EN.

Extreme caution should be exercised when opening 

the Liquid Line Service Valve. Turn counterclockwise 

until the valve stem just touches the rolled edge. No 

torque is required. Failure to follow this warning will 

result in abrupt release of system charge and may 

result in personal injury and /or property damage.

UNIT CONTAINS R-410A REFRIGERANT!

R-410A operating pressures exceed the limit of R-22. Proper 

service equipment is required. Failure to use proper service 

tools may result in equipment damage or personal injury.

SERVICE

USE ONLY R-410A REFRIGERANT AND APPROVED POE 

COMPRESSOR OIL.

s

s

WARNING

s

s

WARNING

LIVE ELECTRICAL COMPONENTS!

During installation, testing, servicing, and trouble-

shooting of this product, it may be necessary to work 

with live electrical components. Failure to follow all 

electrical safety precautions when exposed to live 

electrical components could result in death or serious 

injury.

s

s

WARNING

If using existing refrigerant lines make certain that all 

joints are brazed, not soldered.

CAUTION

Scroll compressor dome temperatures may be hot. Do 

not touch the top of compressor; it may cause minor 

to severe burning.

CAUTION

s

s

WARNING

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

IMPORTANT — This Document is customer property and is to remain with this unit.  Please return to service 

information pack upon completion of work.

These instructions do not cover all variations in systems, nor do they provide for every possible contingency to be met in con-

nection with the installation. Should further information be desired, or should particular problems arise which are not sufficiently 

covered for the purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.

Table of Contents

Section 1. Safety.............................................................................................................................................................2

Section 2. Unit Location Considerations.........................................................................................................................3

Section 3. Unit Preparation.............................................................................................................................................5

Section 4. Setting the Unit..............................................................................................................................................5

Section 5. Refrigerant Line Considerations....................................................................................................................6

Section 6. Refrigerant Line Routing................................................................................................................................7

Section 7. Refrigerant Line Brazing................................................................................................................................8

Section 8. Refrigerant Line Leak Check........................................................................................................................10

Section 9. Evacuation....................................................................................................................................................11

Section 10. Service Valves............................................................................................................................................11

Section 11. Electrical - Low Voltage...............................................................................................................................13

Section 12. Electrical - High Voltage..............................................................................................................................15

Section 13. Start Up......................................................................................................................................................16

Section 14. System Charge Adjustment........................................................................................................................17

Section 15. Checkout Procedures and Troubleshooting................................................................................................23

Содержание M4HP6018A1000A

Страница 1: ...properly installed adjusted or altered 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 ta...

Страница 2: ...Failure to use proper service tools may result in equipment damage or personal injury SERVICE USE ONLY R 410A REFRIGERANT AND APPROVED POE COMPRESSOR OIL s s WARNING s s WARNING LIVE ELECTRICAL COMPO...

Страница 3: ...e sure the roof will support the unit s weight Properly selected isolation is recommended to alleviate sound or vibration transmission to the building structure 1 The maximum length of refrigerant lin...

Страница 4: ...ubbery to ensure adequate airflow Outdoor unit location must be far enough away from any structure to prevent excess roof runoff water or icicles from falling directly on the unit NOTE It is recommend...

Страница 5: ...ing the unit on a support pad such as a concrete slab consider the following The pad should be at least 1 larger than the unit on all sides The pad must be separate from any structure The pad must be...

Страница 6: ...ry Charge 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...

Страница 7: ...from the refrigerant lines For Example When the refrigerant lines have to be fastened to floor joists or other framing in a structure use isolation type hangers Isolation hangers should also be used w...

Страница 8: ...e or other appropriate method every 8 ft 8 Feet Maximum Isolation Through Wall DO NOT hang line sets from ductwork Sealant Insulation Vapor Line Wall Ductwork Isolator Line Set Section 7 Refrigerant L...

Страница 9: ...orrect direction of refrigeration flow away from outdoor unit and toward evapo rator coil as illustrated Braze the filter drier to the Liquid Line Continue the dry nitrogen purge Do not remove the wet...

Страница 10: ...P 2 Check for leaks by using a soapy solu tion or bubbles at each brazed location Remove nitrogren pressure and repair any leaks before continuing Section 8 Refrigerant Line Leak Check 8 1 Check For L...

Страница 11: ...ete blank off the vacuum pump and micron gauge and close the valves on the manifold gauge set 1 MIN Section 10 Service Valves 10 1 Open the Gas Service Valve 0350 Microns ON OFF CAP 1 4 TURN ONLY COUN...

Страница 12: ...STEP 3 Replace the valve cap to prevent leaks Tighten finger tight plus an additional 1 6 turn Cap Rolled Edge to Captivate Stem Hex Headed Valve System Service Port 3 16 Hex Wrench Unit Side of Servi...

Страница 13: ...11 1 24 VOLTS WIRE SIZE MAX WIRE LENGTH 18 AWG 150 Ft 16 AWG 225 Ft 14 AWG 300 Ft With M4AH6 Thermostat Air Handler Outdoor Unit R G B W1 W2 R B O Y X2 R G B C O Y W Blue 24 VAC HOT FAN 24 VAC Common...

Страница 14: ...pin open results in the normal mode of operation 2 FRC_DFT Forced Defrost Short TEST_ COMMON to this pin for two 2 seconds to initiate a forced defrost Remove the short after defrost initiates Defrost...

Страница 15: ...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 be ne...

Страница 16: ...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 is...

Страница 17: ...ient tempera ture is above 55 F For best results the indoor temperature should be kept between 70 F to 80 F STEP 1 Use the refrigerant line total length and lift measurements from Section 5 3 Total Li...

Страница 18: ...bcooling 15 10 0 20 30 40 50 60 70 80 90 100 110 120 130 140 150 REFRIGERANT LINE LIFT FT SUBCOOL CHARGING CHART CORRECTIONS TABLE FOR LINE LENGTH AND RISE Add 4 TOTAL REFRIGERANT LINE LENGTH FT inclu...

Страница 19: ...essure should be ap proximately 327 PSIG 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: ...FIND INTERSECTION OF OD TEMP ID W B 3 READ DISCHARGE OR SUCTION PRESSURE IN LEFT COLUMN 4 EXAMPLE 1 OUTDOOR TEMP 82 F 2 INDOOR WET BULB 67 F 3 AT INTERSECTION ACTUAL 4 DISCHARGE PRESSURE 1450 CFM IS...

Страница 21: ...___ F Liquid Gage Pressure __________ PSIG Suction Gage Pressure __________ PSIG Calculating Charge Using the Weigh In Method STEP 1 Measure in feet the distance between the outdoor unit and the indoo...

Страница 22: ...btained with the namplate charge plus additional charge previously added STEP 5 Return to site for adjustment Important Return in the spring or summer to accurately charge the system in the cooling mo...

Страница 23: ...completed it is recommended that the entire system be checked against the following list Final phases of this installation are the unit Operational and Checkout Procedures To obtain proper performance...

Страница 24: ...es on Time Unit Icing Up W H A T T O C H E C K M O D E P O W E R S U P P L Y H I G H V O L T A G E W I R I N G C O M P R E S S O R I O L R U N C A P A C I T O R S T A R T C A P A C I T O R S T A R T R...

Отзывы: