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 18-AC79D1-6-EN

Section 1. Safety

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 manufacture or seller 
cannot be responsible for the interpretation of this 
information, nor can it assume any liability in connec-
tion 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 sys-
tem. All R-410A systems use a POE oil that readily 
absorbs moisture 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 or 
APP-APG012-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 AP-

PROVED POE COMPRESSOR OIL.

WARNING

!

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.

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

!

WARNING

!

Содержание 4TTR3018-060

Страница 1: ...roved matched indoor and outdoor systems All of the manufacture s split systems are A H R I rated only with TXV EEV indoor systems Some of the benefits of installing approved matched indoor and outdoo...

Страница 2: ...ponent replacement For specific handling 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...

Страница 3: ...outdoor to indoor unit should NOT exceed sixty 60 feet 2 The maximum vertical change should not exceed sixty 60 feet 3 Service valve connection diameters are shown in Table 5 1 Note For line lengths...

Страница 4: ...from any structure to prevent excess roof runoff water from pouring directly on the unit STEP 2 To remove the unit from the pallet remove tabs by cutting with a sharp tool Section 3 Unit Preparation...

Страница 5: ...8 4TTR3036G 3 4 3 8 3 4 3 8 4TTR3042D 3 4 3 8 3 4 3 8 4TTR3048D 7 8 3 8 7 8 3 8 4TTR3060D 7 8 3 8 7 8 3 8 Section 5 Refrigerant Line Considerations 5 1 Refrigerant Line and Service Valve Connection Si...

Страница 6: ...ly with National State and Local Codes when isolating line sets from joists rafters walls or other structural elements Isolation From Joist Rafter Side View 8 Feet Maximum Secure Vapor line from joist...

Страница 7: ...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 Li...

Страница 8: ...avoid heat damage and continue the dry nitrogen purge Braze the refrigerant lines to the service valves Continue the dry nitrogen purge Do not re move the wet rag until all brazing is completed Impor...

Страница 9: ...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 Lea...

Страница 10: ...te 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 COUNT...

Страница 11: ...ve System Service Port 3 16 Hex Wrench Unit Side of Service Valve Extreme caution should be exercised when opening the Liquid Line Service Valve Turn counterclockwise until the valve stem just touches...

Страница 12: ...per W1 and W2 together if comfort control has only one stage of heat Y for TEM3 and TEM4 Only applies for TEM6 Thermostat Air Handler Outdoor Unit R G B W1 W2 B Y R G B C Y W1 W2 Blue 24 VAC HOT FAN 2...

Страница 13: ...h 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 n...

Страница 14: ...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 15: ...to return in the spring or summer to accurately charge the system in the cooling mode when outdoor ambient tempera ture is above 55 F STEP 1 Use the refrigerant line total length and lift measurement...

Страница 16: ...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 SUBCOOL...

Страница 17: ...ssure 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 14 179 182 185 188 191 195 198 195...

Страница 18: ...OR 4TTR3036D1000A 4TXCB036BC3 Cooling with Thermal Expansion Valve LIQUID PRESSURE PSIG OUTDOOR TEMPERATURE Degree F SUCTION PRESSURE PSIG OUTDOOR TEMPERATURE Degree F COOLING PERFORMANCE CAN BE CHECK...

Страница 19: ...heckout Procedures and Troubleshooting 15 1 Operational And Checkout Procedures CHECKOUT PROCEDURE After installation has been completed it is recommended that the entire system be checked against the...

Страница 20: ...R T R E L A Y C O N T A C T O R C O N T A C T S L O W V O L T A G E W I R I N G C O N T R O L T R A N S F O R M E R T H E R M O S T A T C O N T A C T O R C O I L L O W V O L T A G E F U S E S T U C K...

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