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Safety

3

IMPORTANT SAFETY INFORMATION

WARNINGS:

 

•  

These instructions are intended as an aid to 

qualified, licensed service personnel for proper 

installation, adjustment, and operation of this 

unit� Read these instructions thoroughly before 

attempting installation or operation� 

Failure to 

follow these instructions may result in improper 
installation, adjustment, service, or maintenance 
possibly resulting in fire, electrical shock, 
property damage, personal injury, or death.

•  The unit must be permanently grounded. Failure 

to do so can cause electrical shock resulting in 
severe personal injury or death.

•  Turn off electric power at the fuse box or service 

panel before making any electrical connections.

•  Complete the ground connection before making 

line voltage connections. Failure to do so can 
result in electrical shock, severe personal injury, 
or death.

•  Disconnect all power to unit before starting 

maintenance. Failure to do so can cause 
electrical shock resulting in severe personal 
injury or death.

•  Never assume the unit is properly wired and/or 

 

grounded. Always test the unit cabinet with a 
noncontact voltage detector available at most 
electrical supply houses or home centers before 
removing access panels or coming into contact 
with the unit cabinet.

•  Do not use oxygen to purge lines or pressurize 

system for leak test. Oxygen reacts violently with 

oil, which can cause an explosion resulting in 

severe personal injury or death.

•  

The top of the scroll compressor shell is hot� 

Touching the compressor top may result in serious 

personal injury�

•  

The manufacturer’s warranty does not cover 

any damage or defect to the unit caused by the 

attachment or use of any components, accessories, 

or devices (other than those authorized by the 

manufacturer) into, onto, or in conjunction with 

the heat pump� 

You should be aware that the 

use of unauthorized components, accessories, 

or devices may adversely affect the operation 
of the heat pump and may also endanger life 
and property.

 The manufacturer disclaims any 

responsibility for such loss or injury resulting 

from the use of such unauthorized components, 

accessories, or devices�

CAUTIONS:

 

•  

R-410A systems operate at approximately 60% 

higher pressures (1�6 times) than R-22 systems� Do 

not use R-22 service equipment or components on 

R-410A equipment� Use appropriate care when using 

this refrigerant� Failure to exercise care may result in 

equipment damage or personal injury�

•  

Only match this outdoor unit with a matched indoor 

coil or air handler approved for use with this outdoor 

unit per the unit manufacturer’s specification sheet� 

The use of unmatched coils or air handler will likely 

result in a charge imbalance between the cooling 

and heating modes which can cause unsatisfactory 

operation including a high-pressure switch lockout 

condition� 

•  

Only use indoor coils approved for use on R-410A 

systems� An R-22 coil will have a TXV or fixed 

restrictor device that is not designed to operate 

properly in an R-410A system and will result in 

serious operational issues� The R-22 coil could also 

contain mineral oil which is incompatible with the 

POE oil used in R-410A systems and could result in 

reliability issues with the compressor and TXVs�

•  

When coil is installed over a finished ceiling and/or 

living area, it is required that a secondary sheet metal 

condensate pan be constructed and installed under 

the entire unit� Failure to do so can result in property 

damage�

•  

The compressor has an internal overload protector� 

Under some conditions, it can take up to 2 hours for 

this overload to reset� Make sure overload has had 

time to reset before condemning the compressor�

Содержание RA1418AJ1NA

Страница 1: ...READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION ADJUSTMENT SERVICE OR MAINTENANCE POSSIBLY RESU...

Страница 2: ...Connections 19 20 Leak Testing 20 Wiring 21 22 Control Wiring 21 Conventional 24 VAC Thermostat Control Wiring 21 Thermostat Wiring Diagrams 21 22 Power Wiring 22 Grounding 22 Start Up 23 27 Start Up...

Страница 3: ...those authorized by the manufacturer into onto or in conjunction with the heat pump You should be aware that the use of unauthorized components accessories or devices may adversely affect the operatio...

Страница 4: ...parent or concealed should be filed immediately with the shipping company Check model number electrical characteristics and accessories to determine if they are correct Check system components indoor...

Страница 5: ...56 7 132 59 9 RA1430AJ1NA 208 230 1 60 12 8 12 8 64 0 0 70 17 20 20 12 15 1 13 1 2605 1229 93 0 2636 141 64 0 148 67 1 RA1436AJ1NA 208 230 1 60 14 1 14 1 77 0 0 60 19 25 25 14 82 1 38 1 3104 1464 112...

Страница 6: ...t charge and proper airflow are critical to achieve rated capacity and efficiency Installation of this product should follow the manufacturer s refrigerant charging and airflow instructions Failure to...

Страница 7: ...ess 60 152 4 cm above fan discharge unit top to prevent recirculation 6 15 2 cm to coil grille air inlets with 12 30 5 cm minimum recommended Corrosive Environment The metal parts of this unit may be...

Страница 8: ...it Mounting WARNING Secure an elevated unit and its elevating stand in order to prevent tipping Failure to do so may result in severe personal injury or death If installing a unit on a flat roof use 4...

Страница 9: ...410A and air should never be mixed in tanks or supply lines or be allowed to accumulate in storage tanks Leak checking should never be done with a mixture of R 410A and air Leak checking can be perfo...

Страница 10: ...ically designed for R 410A Location Do not install the indoor coil in the return duct system of a gas or oil furnace Provide a service inlet to the coil for inspection and cleaning Keep the coil pitch...

Страница 11: ...It is important not to allow the refrigerant to flash any superheated vapor prior to the expansion device of the indoor coil The flashing of refrigerant can occur for the following reasons Low refrige...

Страница 12: ...t section of the I O for detail Long Line Set Applications Long line set applications are defined as ap plications that require accessories or alternate construction methods The following are special...

Страница 13: ...o verify that the calculated equivalent length falls within the compatibility region of the chart Verify Table 3 to verify the capacity difference is compatible with the application Refrigerant Migrat...

Страница 14: ...erted trap even with top of the coil Insulated liquid and suc on line Reference Table 2 for eleva on limita ons Figure 4 Indoor Unit Above Outdoor Coil For applications that are considered to have a l...

Страница 15: ...e considered to have a long line set with the outdoor unit above the indoor unit the following is required TXV at the indoor unit Crankcase heater Start components maybe required depending upon qualit...

Страница 16: ...R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N R N...

Страница 17: ...3 8 9 53 5 8 15 88 0 99 0 98 0 97 0 96 0 95 0 93 0 93 0 91 0 9 0 9 0 89 0 88 3 4 19 05 1 00 1 00 0 99 0 99 0 98 0 99 0 99 0 97 0 98 0 97 0 96 0 96 7 8 22 23 1 01 1 01 1 00 1 00 1 00 0 99 0 99 0 99 0 9...

Страница 18: ...an R 410A system and the line set is not replaced drain any oil that has pooled in low spots in the lineset Commercially available flush kits are not recommended due to the risk of residual flushing a...

Страница 19: ...door coils have only a holding charge of dry nitrogen Keep all tube ends sealed until connections are to be made Use type L copper refrigeration tubing Braze the connections with the following alloys...

Страница 20: ...e lines or pressurize system for leak test Oxygen reacts violently with oil which can cause an explosion resulting in severe personal injury or death Pressurize line set and coil through service fitti...

Страница 21: ...R OIL FURNACE FOR TYPICAL GAS OR OIL HEAT C Y G W R Y G W R TYPICAL THERMOSTAT SUBBASE TYPICAL GAS OR OIL FURNACE TYPICAL CONDENSING UNIT BR BROWN WIRE YL YELLOW WIRE X WIRE CONNECTION YL BR X X FOR T...

Страница 22: ...ttom of the control box Connect power wiring to line voltage lugs located in the outdoor unit electrical box See wiring diagram attached to unit access panel Check all electrical connections including...

Страница 23: ...e This ensures a comfortable living space These simple mathematical formulas can be used to determine the CFM in a residential or light commercial system Electric resistance heaters can use CFM volts...

Страница 24: ...e readings because of pressure drop through the fittings After adequate evacuation open both service valves by removing both brass service valve caps with an adjustable wrench Insert a 3 16 5 mm or 5...

Страница 25: ...nd Coils Are Clean Confirm adequate indoor supply airflow prior to starting the system See the Technical Specification Sheet for rated airflow for each ID OD unit match Air filter s and coils indoor a...

Страница 26: ..._____ C Unit charging is recommended under the following outdoor conditions ONLY Cooling Mode ONLY 55 F 12 8 C outdoor dry bulb and above 3 Locate and note the design pressures The correct liquid and...

Страница 27: ...om pressure ports then replace the pressure port caps and tighten adequately to seal caps Do not overtighten Replace the service valve caps finger tight and then tighten with an open end wrench adequa...

Страница 28: ...n and wall thermostat is off Compressor Crankcase Heat CCH High and Low Pressure Controls HPC and LPC HPC and LPC are not installed on RA14 AJINA but can be field installed using the followiing kit nu...

Страница 29: ...or thermostat operation this control keeps it off at least 5 minutes which allows the system pressure to equalize thus not damaging the compressor or blowing fuses on start up Low Ambient Control LAC...

Страница 30: ...UnitWiringand Connections CompressorWinding Open Unit Running YES Repairand Recheck YES Repairand Recheck NO VoltageonCompressor SideofContactor NO YES RunCapacitor NO VoltageonLine SideofContactor NO...

Страница 31: ...lve Closed Restricted Indoor Metering Device Restricted Filter Drier Dirty Outdoor Coil Inoperative Outdoor Fan Overcharge Recirculation of Outdoor Air Noncondensibles HigherThan Ambient Air Entering...

Страница 32: ...ssor terminals voltage must be 10 of nameplate marking when unit is operating Replace Check for correct voltage Add refrigerant Registers sweat Low indoor airflow Increase speed of blower or reduce re...

Страница 33: ...ire feeding unit Correct and complete diagnosis High line voltage Power company problem Have problem corrected High head pressure Overcharge Check system charge Dirty outdoor coil Clean coil Faulty or...

Страница 34: ...k for correct ohms Voltage present on line side of com pressor contactor only Thermostat Check for control voltage to contactor coil Compressor control circuit High pressure switch Low pressure switch...

Страница 35: ...SIBLE CAUSE REMEDY Compressor failures Line tubing too large Reduce pipe size to improve oil return Low suction pressure Low charge Check system charge Refrigerant leaks Repair and recharge Cold noisy...

Страница 36: ...nal equalizer line restriction Undersized TEV Replace with correct valve Loss of charge from power head sensing bulb Replace power head or complete TEV Charge migration from sensing bulb to power head...

Страница 37: ...aporator coil Ensure blower is moving proper air CFM Remove Correct any airflow restriction Superheat and suction pressure fluctuate valve is hunting Expansion valve is oversized Install correct TEV S...

Страница 38: ...rcharge High High Low High High Undercharge Low Low High Low Low Liquid Restriction Drier Low Low High High Low Low Indoor Airflow Low Low Low Low Low Dirty Outdoor Coil High High Low Low High Low Out...

Страница 39: ...39 For Single Phase Models WIRING DIAGRAMS Wiring Diagrams...

Страница 40: ...40 WIRING DIAGRAMS For Three Phase Models Wiring Diagrams...

Страница 41: ...41 NOTES...

Страница 42: ...42 NOTES...

Страница 43: ...43 NOTES...

Страница 44: ...44...

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