background image

18-AC79D1-6-EN 

 

    13 

Section 12. Electrical - High Voltage

12.1 High Voltage Power Supply

The high voltage power supply must agree with 
the equipment nameplate.

Power wiring must comply with national, state, 
and local codes.

Follow instructions on unit wiring diagram located 
on the inside of the control box cover and in the 
Service Facts document included with the unit.

12.2 High Voltage Disconnect Switch

12.3 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 be nec-
essary to work with live electrical components. 
Failure to follow all electrical safety precau-
tions when exposed to live electrical compo-
nents could result in death or serious injury.

WARNING

!

Install a separate disconnect switch at the 
outdoor unit.

For high voltage connections, flexible electri-
cal conduit is recommended whenever vibra-
tion transmission may create a noise problem 
within the structure.

Summary of Contents for 4TTR3018-060

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Reviews: