Installation Instructions
Contents
1. f bd o Bte 20 o pol O g o o 20 lt T o oO fall o sO o P kol 0 Hae Hee EEEE SM a dH a o o o g agg me taut Tak a OIA moy wie ao Outdoor Air Temp OAT Outdoor Coil Temp OCT A05332 Fig 11 Control Board Time Delays The unit time delays include e Five minute time delay to start cooling or heating oper ation when there is a call from the thermostat or user interface To bypass this feature in a non communicat ing system momentarily short and release forced de frost pins in a communicating system push the UI fan and up buttons simultaneously for approximately 10 seconds e Five minute compressor recycle delay on return from a brown out condition e Two minute time delay to return to standby operation from last valid communication with Evolution only e One minute time delay of outdoor fan at termination of cooling mode when outdoor ambient is greater than or equal to 100 F 37 78 C e Fifteen second delay at termination of defrost before the auxiliary heat W2 is de energized e Twenty second delay at termination of defrost before the outdoor fan is energized e Seventy and sixty second compressor delays when Quiet Shift 2 enabled2. The thermistor comparison is not performed during low ambient cooling or defrost operation Failed Thermistor Default Operation Factory defaults have been provided in the event of failure of outdoor air thermistor and or coil thermistor If the OAT sensor should fail low ambient cooling will not be allowed and the one minute outdoor fan off delay will not occur Defrost will be initiated based on coil temperature and time If the OCT sensor should fail low ambient cooling will not be allowed Defrost will occur at each time interval during heating operation but will terminate after 5 minutes If there is a thermistor out of range error defrost will occur at each time interval during heating operation but will terminate after 5 minutes Thermistor Curve The resistance vs temperature chart shown in Fig 13 enables the technician to check the outdoor air and outdoor coil thermistors for proper resistance Unplug the thermistor assembly from the circuit board and measure resistance across each thermistor For example if the outdoor temperature is 60 F 15 56 C the resistance reading across the outdoor air thermistor should be around 16 000 Ohms 11 285B Status Codes Table 4 shows the status codes flashed by the amber status light Most system problems can be diagnosed by reading the status code as flashed by the amber status light on the control board The codes are flashed by a series of short and long flashes
3. Utility Interface With Evolution Control The input labeled UTIL is active only when a communicating Evolution Control is used This input allows a power utility device to interrupt compressor operation during peak load periods See Fig 12 for wiring connections When the utility sends a signal to shut the system down the User Interface will display gt CURTAILMENT ACTIVE EVOLUTION BOARD UTIL 29000 f UTILITY RELAY e e UTILITY SIGNAL lt OPEN RELAY a SUPPLIED BY UTILITY PROVIDER A05409 Fig 12 Utility Interface With Non Communicating Thermostats When the utility curtailment interface is used with a non communicating thermostat the utility relay should be wired between R and Y Low Ambient Cooling When this unit is operating below 55 F 12 78 C outdoor temperature provisions must be made for low ambient operation Evolution Controlled low ambient cooling This unit is capable of low ambient cooling without a kit ONLY when using the Evolution control A low ambient kit is not required and the outdoor fan motor does not need to be replaced for Evolution controlled low ambient operation The Evolution Control provides an automatic evaporator coil freeze protection algorithm that eliminates the need for an evaporator freeze thermostat Low ambient cooling must be enabled in the User Interface set up Fan may not begin to cycle until about 40 F 4 44
4. C OAT Fan will cycle based on coil and outdoor air temperature Evolution controlled low ambient mode operates as follows e Fan is OFF when outdoor coil temp is lt outdoor air temperature 3 F 16 11 C or outdoor fan has been ON for 30 minutes Fan is turned off to allow refriger ant system to stabilize e Fanis ON when outdoor coil temp gt outdoor air temper ature 25 F 3 89 C or outdoor coil temp gt 80 F 26 67 C or if outdoor fan has been OFF for 30 minutes Fan is turned on to allow refrigerant system to stabilize e Low pressure switch is ignored for first 3 minutes during low ambient start up After 3 minutes if LPS trips then outdoor fan motor is turned off for 10 minutes with the compressor running If LPS closes within 10 minutes then cooling continues with the outdoor fan cycling per the coil temperature routine listed above for the remainder of the cooling cycle If the LPS does not close within 10 minutes then the normal LPS trip response shut down cooling operation and generate LPS trip error will occur 285B Standard Thermostat low ambient cooling mode A Low Ambient Pressure Switch kit Evaporator Freeze Thermostat and Isolation Relay must be installed for low ambient operation in standard thermostat mode The fan motor is a ball bearing type and does not need to be changed A crankcase heater must be installed See Product Data for part numbers on appropriate unit size and s
5. Evacuate Refrigerant Tubing and Indoor Coil A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Never use the system compressor as a vacuum pump Refrigerant tubes and indoor coil should be evacuated using the recommended deep vacuum method of 500 microns An alternate triple evacuation method may also be used See Service Manual for Triple Evacuation Method IMPORTANT Always break a vacuum with dry nitrogen Deep Vacuum Method The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this vacuum depth The deep vacuum method is the most positive way of assuring a system is free of air and liquid water See Fig 5 5000 4500 4000 en 3500 S 3000 amp 2500 2000 1500 1000 500 LEAK IN SYSTEM VACUUM TIGHT TOO WET TIGHT DRY SYSTEM 0 1 2 3 4 5 6 7 MINUTES A95424 Fig 5 Deep Vacuum Graph Final Tubing Check IMPORTANT Check to be certain factory tubing on both indoor and outdoor unit has not shifted during shipment Ensure tubes are not rubbing against each other or any sheet metal Pay close attention to feeder tubes making sure wire ties on feeder tubes are secure and tight Make Electrical Connections amp WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Do not sup
6. Failure to follow this caution may result in minor personal injury equipment damage or improper operation To prevent compressor damage or personal injury observe the following e Do not overcharge system with refrigerant e Do not operate unit in a vacuum or at negative pressure e Do not disable low pressure switch in scroll compressor applications e Dome temperatures may be hot A CAUTION PERSONAL INJURY HAZARD Failure to follow this caution may result in personal injury Wear safety glasses protective clothing and gloves when handling refrigerant and observe the following Front seating service valves are equipped with Schrader valves A CAUTION ENVIRONMENTAL HAZARD Failure to follow this caution may result in environmental damage Federal regulations require that you do not vent refrigerant to the atmosphere Recover during system repair or final unit disposal Follow these steps to properly start up system 1 After system is evacuated fully open liquid and vapor ser vice valves 2 Unit is shipped with valve stem s closed and caps in stalled Replace stem caps after system is opened to refri gerant flow back seated Replace caps finger tight and tighten with wrench an additional 1 12 turn 3 Close electrical disconnects to energize system 4 Set room thermostat at desired temperature Be sure set point is below indoor ambient temperature 5 Set room thermostat to HEAT or COO
7. On a non communicating system this feature must be enabled by selecting the 3rd position of the 3 position dip switch on the outdoor control board For communicating systems it must be enabled at the User Interface When activated the following sequence of operation occurs Defrost Initiation the compressor is de energized for 70 seconds During this 70 second compressor off time the reversing valve will be energized Once the 70 second compressor off time has been reached the compressor will be energized then the outdoor fan will be de energized at which time the normal defrost cycle begins Defrost Termination the outdoor fan will be energized shortly before the compressor is de energized for 60 seconds During the compressor 60 second off time the reversing valve will be de energized Once the 60 second compressor off time has been completed the compressor will be energized at which time the system will be in normal heat mode LIQUID LINE SOLENOID ACCESSORY In heat pump long line applications a liquid line solenoid is required to control refrigerant migration in the heating mode The solenoid should be installed near the outdoor unit with the arrow facing the outdoor unit This is the direction of flow control See Long Line Application Guideline for details Accessory Liquid Solenoid with Evolution Communicating Control When using the Evolution Control a liquid line solenoid output labeled LS is provided Connect
8. e Upon initial power up the first defrost interval is defaulted to 30 minutes Remaining intervals are at selected times e Defrost is only allowed to occur below 50 F 10 C out door ambient temperature Defrost Hold In a non communicating system if the thermostat becomes satisfied before the defrost cycle is terminated the control will hold in defrost mode and finish the defrost cycle on the next call for heat Defrost hold is not needed in a communicating system because the User Interface will complete the defrost cycle before shutting down the system Forced Defrost Forced defrost can be initiated manually in a non communicating system or by communicated command from a User Interface The board contains a 2 pin header labeled FORCED DEFROST See Figure 14 To initiate a forced defrost e Manually short FORCED DEFROST pins for 5 seconds then release e If coil temp is at defrost temp of 32 F 0 C and out door air temperature is below 50 F 10 C a full defrost sequence will occur e Ifthe coil temp or outdoor air temperature do not meet the above requirements an abbreviated 30 second de frost will occur e The Quiet Shift 2 compressor on off delays as de scribed below will be included in a forced defrost if Quiet Shift 2 is enabled QUIET SHIFT 2 Quiet Shift 2 is a field selectable defrost mode which may eliminate occasional noise that could be heard at the start and finish of the defrost cycle
9. the solenoid as shown in the wiring label diagram This is a 24vac output that is energized whenever the compressor is energized It closes in the compressor off mode to prevent refrigerant migration into the unit through the liquid line Accessory Liquid Solenoid with Non Communicating Thermostat The liquid solenoid is connected to the Y and C terminal connections The liquid solenoid closes in the compressor off mode to prevent refrigerant migration into the unit through the liquid line MAJOR COMPONENTS Control Board The Heat Pump control board controls the following functions e Compressor contactor operation e Outdoor fan motor operation Reversing valve operation e Defrost operation e Compressor external protection e Pressure switch monitoring e Time delays Field Connections When using Evolution communicating control 4 field wires are required to be connected to the factory wires already wired to the ABCD terminal see Fig 11 Unit as provided by manufacturer is set up for Evolution communicating control When used with a standard non communicating thermostat 5 field wires are required to be connected to R Y W2 O and C Disconnect factory provided wires from A B C and D terminals Using factory provided wires connect to R Y W2 O and C terminals on the control board Connect field 24V wires to factory provided wires now connected to R Y W2 O and C and cap both sides or remove unused factory provided
10. 285B EVOLUTION 15 HEAT PUMP WITH PURON REFRIGERANT SIZES 018 TO 060 1 1 2 TO 5 NOMINAL TONS Installation Instructions SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause death personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installing Follow all safety codes Wear safety glasses protective clothing and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Consult local building codes and current editions of the National Electrical Code NEC NFPA 70 In Canada refer to current editions of the Canadian electrical code CSA 22 1 Recognize safety information This is the safety alert symbol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards w
11. Heat Duel Fuel system manufacturer s This product has been designed and manufactured to meet participation in the Energy Star criteria for energy efficiency when matched Program For verification with appropriate coil components However proper of certification for individual hice acto er e refrigerant charge and proper air flow are critical to achieve P directoiyioi aage rated capacity and efficiency Installation of this product umidi y should follow all manufacturing refrigerant charging and air flow instructions Failure to confirm proper charge and air flow may reduce energy efficiency and shorten equipment life 285B Outdoor Unit Connected to Factory Approved Indoor Unit Outdoor unit contains approximate system refrigerant charge for operation with approved AHRI rated indoor unit when connected by 15 ft 4 57 m of field supplied or factory accessory tubing and factory supplied filter drier Some indoor units require additional subcooling to achieve optimal heating performance Using Table NO TAG Additional Subcooling Required check refrigerant charge for maximum efficiency Install Adapter Tube 1 Remove plastic retainer holding outdoor piston in liquid service valve 2 Check outdoor piston size with matching number listed on unit rating plate 3 Locate plastic bag taped to unit containing adapter tube 4 Remove Teflon seal from bag and install on open end of liquid service valve Se
12. L and fan control to ON or AUTO mode as desired Operate unit for 15 minutes Check system refrigerant charge Variable Speed User Interface Furnace Fan Coil Green Green Alpe AP See Yellow Yellow B H B_HH White White G p see e C H 4 2 Red Red D H 77 D H 7 S1 Optional Remote moe ra Room Sensor S2 HUM ABCD Humidifier Connection Connection COM e oat ensor OAT Optional e 10096 Fig 9 Evolution Control Four Wire Connection Diagram NOTE Wiring must conform to NEC or local codes NOTE For standard thermidistat or thermostat wiring see Installation Instructions for those products TYPICAL HEAT HP THERMOSTAT FAN COIL PUMP 24 VAC HOT 24 VAC COM HEAT STAGE 2 COOL HEAT STAGE 1 EMERGENCY HEAT LEGEND 24V FACTORY WIRING 24V FIELD WIRING m FIELD SPLICE CONNECTION T 7 OUTDOOR THERMOSTAT W EMERGENCY HEAT RELAY SHR SUPPLEMENTAL HEAT RELAY A02325 A97413 Fig 10 Generic Wiring Diagram for Standard Thermostat Installations Check Charge Factory charge amount and desired subcooling are shown on unit rating plate Additional subcooling may be required to achieve optimal heating performance based on the installed indoor unit see Table 3 Charging method is shown on information plate
13. To furnish power to heater only set thermostat to OFF and close electrical disconnect to outdoor unit A crankcase heater is required if refrigerant tubing is longer than 80 ft 24 38 m Refer to the Long Line Guideline Residential Split System Air Conditioners and Heat Pumps Install Electrical Accessories Refer to the individual installation instructions packaged with kits or accessories when installing Check OAT Thermistor and OCT Thermistor Attachments Outdoor Air Temperature OAT Thermistor is factory installed by inserting the nibs on either sides of the thermistor body through a keyhole in the bottom shelf of the control box and locking it in place by turning it 90 degrees such that the spherical end of a nib faces the front of the control box Check to make sure the OAT is locked in place See Fig 7 OAT Thermistor must be locked in place with spherical nib end facing towards the front of the control box A05408 Fig 7 Outdoor Air Thermistor OAT Attachment The Outdoor Coil Temperature OCT Thermistor is factory installed on the 3 8 diameter stub tube located on the coil assembly Check to make sure that it is securely attached with the clip as shown in Fig 8 OCT Thermistor must be secured tight on stub tube A05409 Fig 8 Outdoor Coil Thermistor OCT Attachment START UP A CAUTION UNIT OPERATION AND SAFETY HAZARD
14. bury lines longer than 36 in A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation To prevent damage to unit or service valves observe the following eUse a brazing shield eWrap service valves with wet cloth or use a heat sink material Outdoor units may be connected to indoor section using Pumps will reduce these losses Refer to Table 1 for accessory accessory tubing package or field supplied refrigerant grade requirements Refer to Table 2 for field tubing diameters tubing of correct size and condition For tubing requirements If refrigerant tubes or indoor coil are exposed to atmosphere they beyond 80 ft 24 38 m substantial capacity and performance must be evacuated to 500 microns to eliminate contamination and losses can occur Following the recommendations in the Long moisture in the system Line Guideline for Split System Air Conditioners and Heat Table 1 Accessory Usage REQUIRED FOR LOW AMBIENT REQUIRED FOR REQUIRED FOR ACCESSORY COOLING APPLICATIONS LONG LINE APPLICATIONS SEA COAST APPLICATIONS Below 55 F 12 8 C Within 2 miles 3 22 km Accumulator Standard Standard Standard Compressor Start Assist Capacitor and Relay Yes No Crankcase Heater Yes Yes No Evaporator Fr Thermostat Yes No No ia a a a a for non Evolution systems only Yes Isolation Relay for non Evolution systems only No Np Liquid Line S
15. ck open or the unit disconnect or circuit breaker may be open The control will flash the appropriate fault code Check the contactor unit disconnect or circuit breaker and control box wiring Temperature Thermistors Thermistors are electronic devices which sense temperature As the temperature increases the resistance decreases Thermistors are used to sense outdoor air OAT and coil temperature OCT Refer to Fig 13 for resistance values versus temperature If the outdoor air or coil thermistor should fail the control will flash the appropriate fault code See Table 4 IMPORTANT The outdoor air thermistor and coil thermistor are factory mounted in the correct locations Do not re locate thermistor sensors Thermistor Sensor Comparison The control continuously monitors and compares the outdoor air temperature sensor and outdoor coil temperature sensor to ensure proper operating conditions The comparison is e In cooling if the outdoor air sensor indicates 10 F 12 22 C warmer than the coil sensor or the out door air sensor indicates gt 20 F 6 67 C cooler than the coil sensor the sensors are out of range e In heating if the outdoor air sensor indicates 235 F 1 67 C warmer than the coil sensor or the out door air sensor indicates 10 F 12 22 C cooler than the coil sensor the sensors are out of range If the sensors are out of range the control will flash the appropriate fault code See Table 4
16. conds to increase system efficiency Heating On a call for heating a standard thermostat non communicating makes circuits R Y and R G Circuit R Y energizes contactor starting outdoor fan motor and compressor Circuit R G energizes indoor blower relay starting blower motor on high speed Should temperature continue to fall R W2 is made through second stage room thermostat Circuit R W2 energizes a relay bringing on first bank of supplemental electric heat and providing electrical potential to second heater relay if used If outdoor temperature falls below setting of outdoor thermostat factory installed contacts close to complete circuit and bring on second bank of supplemental electric heat When thermostat is satisfied its contacts open de energizing contactor and relay All heaters and motors should stop after all fan off delays HEAT PUMP SYSTEM FUNCTIONS AND SEQUENCE OF OPERATION The outdoor unit control system has special functions The following is an overview of the control functions SEQUENCE OF OPERATION Cooling amp Heating Operation This product utilizes either a standard indoor thermostat or Evolution communication User Interface With a call for cooling the outdoor fan reversing valve and compressor are energized When the cooling demand is satisfied the compressor and fan will shut off The reversing valve will remain energized until the control board power is removed or a call for heating is ini
17. e Fig 3 5 Remove adapter tube from bag and connect threaded nut to liquid service valve Tighten nut finger tight and then with wrench an additional 1 2 turn 15 ft lb DO NOT OVER TIGHTEN TEFLON SEAL K L PISTON PISTON BODY L SWEAT FLARE ADAPTER LIQUID SERVICE VALVE A05226 Fig 3 Liquid Service Valve Refrigerant Tubing and Sweat Connections Connect vapor tube to fitting on outdoor unit vapor service valves see Table 2 Connect liquid tubing to adapter tube on liquid service valve Use refrigerant grade tubing A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Service valves must be wrapped in a heat sinking material such as a wet cloth while brazing A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Installation of filter drier in liquid line is required Install Liquid Line Filter Drier Indoor Refer to Fig 4 and install filter drier as follows 1 Braze 5 in 127 mm liquid tube to the indoor coil 2 Wrap filter drier with damp cloth 3 Braze filter drier to 5 in 127 mm long liquid tube from step 1 4 Connect and braze liquid refrigerant tube to the filter drier A05227 Fig 4 Liquid Line Filter Drier Leak Testin Leak test all joints indoors outdoors and refrigerant tubing
18. e appropri ate for unit capacity 3 Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends 4 Leave some slack between structure and unit to absorb vi bration 5 When passing refrigerant tubes through the wall seal opening with RTV or other pliable silicon based caulk See Fig 1 6 Avoid direct tubing contact with water pipes duct work floor joists wall studs floors and walls 7 Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing See Fig 1 8 Ensure that tubing insulation is pliable and completely surrounds vapor tube 9 When necessary use hanger straps which are 1 in 25 4 mm wide and conform to shape of tubing insulation See Fig 1 10 Isolate hanger straps from insulation by using metal sleeves bent to conform to shape of insulation NOTE Avoid contact between tubing and structure OUTDOOR WALL INDOOR WALL Satie AA wa So A LIQUID TUBE I A VAPOR TUBE INSULATION THROUGH THE WALL p OST HANGER STRAP PEE ONN INSULATION VAPOR TUBE fe 0 e 1 25 4mm MIN a LIQUID TUBE SUSPENSION A94028 Fig 1 Connecting Tubing Installation When outdoor unit is connected to factory approved indoor unit outdoor unit contains system refrigerant charge for operation with AHRI rated indoor unit when connected by 15 ft 4 57 m of field supplied o
19. e present when the contactor is de energized Compressor Thermal Cutout or Loss of 230V Power If the control senses the compressor voltage after start up and is then absent for 10 consecutive seconds while cooling demand exists it will de energize the compressor contactor keep the outdoor fan operating for 15 minutes if 230v power present and display the appropriate fault code See Table 4 Possible causes are compressor internal overload trip or loss of high voltage 230V to compressor without loss of control voltage After a 15 minute delay if there is still a call for cooling the compressor contactor is energized If the thermal protector has not re set the outdoor fan is turned off If the call for cooling continues the control will energize the compressor contactor every 15 minutes If the thermal protector closes at the next 15 minute interval check the unit will resume operation If the thermal cutout trips for three consecutive cycles then unit operation is locked out for 4 hours and the appropriate fault code See Table 4 is displayed Contactor Shorted Detection If there is compressor voltage sensed when there is no demand for compressor operation the contactor may be stuck closed The control will flash the appropriate fault code Check the contactor and control box wiring No 230V_at Compressor If the compressor voltage is not sensed when the compressor should be starting The contactor may be stu
20. eries units DEFROST This control offers 4 possible defrost interval times 30 60 90 or 120 minutes These are selected by dip switches on the unit control board or in the Evolution control if used The Evolution Control selection overrides the control board dip switch settings Auto defrost is available with Evolution communicating control only and it must be enabled in the User Interface Auto defrost adjusts the defrost interval time based on the last defrost time as follows e When defrost time is lt 3 minutes the next defrost interval 120 minutes e When defrost time is 3 5 minutes the next defrost interval 90 minutes e When defrost time is 5 7 minutes the next defrost interval 60 minutes e When defrost time is gt 7 minutes the next defrost interval 30 minutes The control board accumulates compressor run time As the accumulated run time approaches the selected defrost interval time the control board monitors the coil temperature sensor for a defrost demand If a defrost demand exists a defrost cycle will be initiated at the end of the selected time interval A defrost demand exists when the coil temperature is at or below 32 F 0 C for 4 minutes during the interval The defrost cycle is terminated when the coil temperature reaches 65 F 18 33 C or 10 minutes has passed If the coil temperature does not reach 32 F 0 C within the interval the interval timer will be reset and start over NOTE
21. g e Do not vent Puron into the atmosphere e Do not use capillary tube coils e Observe all warnings cautions and bold text e All indoor coils must be installed with a hard shutoff Puron TXV metering device Always Ask For FACTORY D THORIZE AU TARTS 13 285B 2012 Bryant Heating amp Cooling Systems 7310 W Morris St Indianapolis IN 46231 Edition Date 12 12 Catalog No II285B 04 Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Replaces lI285B 03 14
22. hich will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation A WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing and gloves when handling parts IMPORTANT Maximum liquid line size is 3 8 in OD for all residential applications including long line IMPORTANT Always install the factory supplied liquid line filter drier Obtain replacement filter driers from your distributor or branch INSTALLATION RECOMMENDATIONS NOTE In some cases noise in the living area has been traced to gas pulsations from improper installation of equipment 1 Locate unit away from windows patios decks etc where unit operation sound may disturb customer 2 Ensure that vapor and liquid tube diameters ar
23. inside unit To properly check or adjust charge conditions must be favorable for subcooling charging Favorable conditions exist when the outdoor temperature is between 70 F and 100 F 21 11 C and 37 78 C and the indoor temperature is between 70 F and 80 F 21 11 C and 26 67 C Follow the procedure below Unit is factory charged for 15ft 4 57 m of lineset Adjust charge by adding or removing 0 6 0z ft of 3 8 liquid line above or below 15ft 4 57 m respectively For standard refrigerant line lengths 80 ft 24 38 m or less allow system to operate in cooling mode at least 15 minutes If conditions are favorable check system charge by subcooling method If any adjustment is necessary adjust charge slowly and allow system to operate for 15 minutes to stabilize before declaring a properly charged system Refer to Table NO TAG for additional subcooling required If the indoor temperature is above 80 F 26 67 C and the outdoor temperature is in the favorable range adjust system charge by weight based on line length and allow the indoor temperature to drop to 80 F 26 67 C before attempting to check system charge by subcooling method as described above If the indoor temperature is below 70 F 21 11 C or the outdoor temperature is not in the favorable range adjust charge for line set length above or below 15ft 4 57 m only Charge level should then be appropriate for the system to achieve rated capacity The charge level c
24. ips for five consecutive cycles then unit operation is locked out for 4 hours and the appropriate fault code See Table 4 is displayed In the event of a high pressure switch trip or high pressure lockout check the refrigerant charge outdoor fan operation and outdoor coil in cooling for airflow restrictions or indoor airflow in heating In the event of a low pressure switch trip or low pressure lockout check the refrigerant charge and indoor airflow cooling and outdoor fan operation and outdoor coil in heating Control Fault If the outdoor unit control board has failed the control will flash the appropriate fault code See Table 4 The control board should be replaced 24V_ Brown Out Protection If the control voltage is less than 15 5volts for at least 4 seconds the compressor contactor and fan relay are de energized Compressor and fan operation are not allowed until control voltage is a minimum of 17 5volts The control will flash the appropriate fault code See Table 4 Verify the control voltage is in the allowable range of 18 30volts Compressor Voltage Sensing The input terminals labeled VR and VS on the control board see Fig 11 are used to detect compressor voltage status and alert the user of potential problems The control continuously monitors the high voltage on the run capacitor of the compressor motor Voltage should be present any time the compressor contactor is energized and voltage should not b
25. of the status light The short flashes indicate the first digit in the status code followed by long flashes indicating the second digit of the error code The short flash is 0 25 second ON and the long flash is 1 0 second ON Time between flashes is 0 25 second Time between short flash and first long flash is 1 0 second Time between code repeating is 2 5 seconds with LED OFF Count the number of short and long flashes to determine the appropriate flash code Table 4 gives possible causes and actions related to each error Example 3 short flashes followed by 2 long flashes indicates a 32 code Table 4 shows this to be low pressure switch open Table 4 Status Codes AMBER LED OPERATION FAULT FLASH CODE POSSIBLE CAUSE AND ACTION Standby no call for unit operation None On solid no flash Normal operation Cool Heat Operation None 1 pause Normal operation System Communica 16 Communication with user interface lost Check wiring to UI indoor and out tions Failure door units High Pressure Switch 31 High pressure switch trip Check refrigerant charge outdoor fan operation Open and coils for airflow restrictions Low Beets Switch 32 Low pressure switch trip Check refrigerant charge and indoor air flow Control Fault 45 Outdoor unit control board has failed Control board needs to be replaced Brown Out The control voltage is less than 15 5v for at least 4 seconds Compresso
26. olenoid Valve No See Long Line Application Guideline No Motor Master Control or Yes N N Low Ambient Switch for non Evolution systems only 9 9 Support Feet Recommended No Recommended For tubing line sets between 80 and 200 ft 24 38 and 60 96 m and or 20 ft 6 1 m vertical differential 250 ft 76 2 m Total Equivalent Length refer to Residential Piping and Longline Application Guideline Table 2 Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters In LIQUID RATED VAPOR UNIT SIZE Connection Diameter Tube Diameter Connection Diameter Rated Tube Diameter 018 024 3 8 3 8 5 8 5 8 030 036 3 8 3 8 3 4 3 4 042 048 3 8 3 8 7 8 7 8 060 3 8 3 8 7 8 1 1 8 Units are rated with 25 ft 7 6 m of lineset See Product Data sheet for performance data when using different size and length linesets Notes 1 Do not apply capillary tube or fixed orifice indoor coils to these units 2 For Tubing Set lengths between 80 and 200 ft 24 38 and 60 96 m horizontal or 20 ft 6 1 m vertical differential 250 ft 76 2 m Total Equivalent Length refer to the Residential Piping and Longline Guide line Air Conditioners and Heat Pumps using Puron refrigerant ISO 9001 2000 m on the environmentally sound refrigerant Thinks Heats Saves L un gt HYBRIDHEAT Use of the AHRI Certified 7 TM Mark indicates a ENERGY STAR Ready for use in a Hybrid
27. ould then be checked at another time when the both indoor and outdoor temperatures are in a more favorable range NOTE If line length is beyond 80 ft 24 38 m or greater than 20 ft 6 10 m vertical separation See Long Line Guideline for special charging requirements Heating Check Chart Procedure To check system operation during heating cycle refer to the Heating Check Chart on outdoor unit This chart indicates whether a correct relationship exists between system operating pressure and air temperature entering indoor and outdoor units If pressure and temperature do not match on chart system refrigerant charge may not be correct Do not use chart to adjust refrigerant charge GENERAL SEQUENCE OF OPERATION STANDARD THERMOSTAT Turn on power to indoor and outdoor units Transformer is energized with power supplied Cooling On a call for cooling a _ standard thermostat non communicating makes circuits R O and R Y and R G Circuit R O energizes reversing valve switching it to cooling position Circuit R Y energizes contactor starting outdoor fan motor and compressor circuit R G energizes indoor unit blower relay starting indoor blower motor on high speed When a standard thermostat non communicating is satisfied its contacts open de energizing contactor and blower relay Compressor and motors should stop NOTE If indoor unit is equipped with a time delay relay circuit the indoor blower will run an additional 90 se
28. ply power to unit with compressor terminal box cover removed Be sure field wiring complies with local and national fire safety and electrical codes and voltage to system is within limits shown on unit rating plate Contact local power company for correction of improper voltage See unit rating plate for recommended circuit protection device NOTE Operation of unit on improper line voltage constitutes abuse and could affect unit reliability See unit rating plate Do not install system where voltage may fluctuate above or below permissible limits NOTE Use copper wire only between disconnect switch and unit NOTE Install branch circuit disconnect of adequate size per NEC to handle unit starting current Locate disconnect within sight from and readily accessible from unit per Section 440 14 of NEC Route Ground and Power Wires Remove access panel to gain access to unit wiring Extend wires from disconnect through power wiring hole provided and into unit control box a WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death The unit cabinet must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes Connect Ground and Power Wires Connect ground wire to ground connection in control box for safet
29. r 46 and fan operation not allowed until control voltage is a minimum of 17 5v 24 v Verify control voltage Outdoor Air Temp Sen 53 Outdoor air sensor not reading or out of range Ohm out sensor and check sor Fault wiring aaa a Sensor 55 Coil sensor not reading or out of range Ohm out sensor and check wiring Thermistors outor ran 56 Improper relationship between coil sensor and outdoor air sensor Ohm out e ange sensors and check wiring Compressor voltage sensed after start up then absent for 10 consecutive Th Cutout 72 seconds while cooling demand exists Possible causes are internal compres Simalwutou sor overload trip or loss of high voltage to compressor without loss of control voltage Compressor voltage sensed when no demand for compressor operation Contactor Shorted 73 exists Contactor may be stuck closed or there is a wiring error Compressor voltage not sensed when compressor should be starting Dis KOAN gt Compressor 74 connect may be open or contactor may be stuck open or there is a wiring error Thermal cutout occurs in three consecutive cycles Unit operation locked Thermal Lockout E out for 4 hours or until 24v power recycled Low pressure switch trip has occurred during 5 consecutive cycles Unit Low Pressure Lockout 83 operation locked out for 4 hours or until 24v power recycled High pressure switch trip has occurred during 5 consecutive cycles Unit High Pressure Lockout a operation locked out for 4 hours or until 24v powe
30. r factory accessory tubing For proper unit operation check refrigerant charge using charging information located on control box cover and or in the Check Charge section of this instruction 285B INSTALLATION Check Equipment and Job Site Unpack Unit Move to final location Remove carton taking care not to damage unit Inspect Equipment File claim with shipping company prior to installation if shipment is damaged or incomplete Locate unit rating plate on unit corner panel It contains information needed to properly install unit Check rating plate to be sure unit matches job specifications Install on a Solid Level Mounting Pad If conditions or local codes require the unit be attached to pad tiedown bolts should be used and fastened through knockouts provided in unit base pan Refer to unit mounting pattern in Fig 2 to determine base pan size and knockout hole location For hurricane tie downs contact distributor for details and PE Certification Professional Engineer if required On rooftop applications mount on level platform or frame Place unit above a load bearing wall and isolate unit and tubing set from structure Arrange supporting members to adequately support unit and minimize transmission of vibration to building Consult local codes governing rooftop applications Roof mounted units exposed to winds above 5 mph may require wind baffles Consult the Service Manual Residential Split System Air Conditioner
31. r operating ambient in heating mode is 66 F 18 89 C Elevate Unit 4 CAUTION UNIT OPERATION HAZARD Failure to follow this caution may result in equipment damage or improper operation Unit must be kept free of an accumulation of water and or ice in the basepan Elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage of unit If using accessory support feet use installation instructions from kit for installation 4 amp CAUTION EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation To prevent damage to the unit ensure that it is located with the supports such that the unit is stable in all circumstances including adverse conditions Make Piping Connections a WARNING PERSONAL INJURY ENVIRONMENTAL HAZARD Failure to follow this warning could result in personal injury or death Relieve pressure and recover all refrigerant before system repair or final unit disposal Use all service ports and open all flow control devices including solenoid valves A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation If ANY refrigerant tubing is buried provide a 6 in 152 4 mm vertical rise at service valve Refrigerant tubing lengths up to 36 in 914 4 mm may be buried without further special consideration Do not
32. r recycled 12 FINAL CHECKS THERMISTOR CURVE E e IMPORTANT Before leaving job be sure to do the following N 1 Ensure that all wiring is routed away from tubing and 80 ace sheet metal edges to prevent rub through or wire pinch 2 70 ing 5 60 2 Ensure that all wiring and tubing is secure in unit before uw 50 adding panels and covers Securely fasten all panels and 2 40 covers lt i 30 3 Tighten service valve stem caps to 1 12 turn past finger 2 oh tight T 4 Leave Users Manual with owner Explain system opera 19 tion and periodic maintenance requirements outlined in 0 manual 0 20 40 60 80 100 120 17 77 6 67 4 44 15 56 26 67 37 78 48 89 5 Fill out Dealer Installation Checklist and place in customer TEMPERATURE F C file A08054 CARE AND MAINTENANCE Fig 13 Resistance vs Temperature Chart For continuing high performance and to minimize possible equipment failure periodic maintenance must be performed on this equipment Frequency of maintenance may vary depending upon geographic areas such as coastal applications See Users Manual for information PURON R 410A QUICK REFERENCE GUIDE e Puron refrigerant operates at 50 70 percent higher pressures than R 22 Be sure that servicing equipment and replacement components are designed to operate with Puron e Puron refrigerant cylinders are rose colored e Recovery cylinder service p
33. ressure rating must be 400 psig DOT 4BA400 or DOT BW400 e Puron systems should be charged with liquid refrigerant Use a commercial type metering device in the manifold hose when charging into suction line with compressor operating e Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low side retard e Use hoses with 700 psig service pressure rating e Leak detectors should be designed to detect HFC refrigerant e Puron as with other HFCs is only compatible with POE oils e Vacuum pumps will not remove moisture from oil e Do not use liquid line filter driers with rated working pressures less than 600 psig e Do not leave Puron suction line filter driers in line longer than 72 hours e Do not install a suction line filter drier in liquid line e POE oils absorb moisture rapidly Do not expose oil to atmosphere e POE oils may cause damage to certain plastics and roofing materials e Wrap all filter driers and service valves with wet cloth when brazing e A factory approved liquid line filter drier is required on every unit e Do NOT use an R 22 TXV e If indoor unit is equipped with an R 22 TXV or piston metering device it must be changed to a hard shutoff Puron TXV e Never open system to atmosphere while it is under a vacuum e When system must be opened for service recover refrigerant evacuate then break vacuum with dry nitrogen and replace filter driers Evacuate to 500 microns prior to rechargin
34. ressure switch or compressor thermal protector should open Outdoor fan motor will continue to operate for one minute after the compressor shuts off when the outdoor ambient is greater than or equal to 100 F 37 78 C 285B Table 3 Additional Subcooling Required 15 SEER Units Indoor Unit Subcooling Delta from Rating Plate Value OUTDOOR UNIT TONNAGE 030 042 CAP 1814A CNPV 1814A FB4CNF018 TXV FF1ENP 018 019 FX4DNF019 CAP 24 A CNP 24 A CSPH 2412A FB4CNF024 TXV FF1ENP 024 025 FV4C FE4A NF002 FX4DNF025 CAP 30 A CNP 30 A CSPH 3012A FB4CNF030 TXV FF1ENP030 FF1ENPO31 FX4DN B F 031 CAP 36 A CNP 36 A CSPH 3612A FB4CNF036 TXV FV4C FE4A N B F 003 FF1ENP036 FF1ENP037 FX4DN B F 037 CAP 42 A CNP 4221A CNPV 4217A CSPH 4212A FB4CNF042 TXV FX4DN B F 043 CAP 4817A CAP 48 21 24 A CNP 4g A CSPH 4812A FB4CNF048 TXV FV4C FE4A N B F 005 FX4DN B F 049 CAP 60 A CNP 6024A CSPH 6012A FB4CNFO60 FV4C FE4A NB006 FX4DN B F 061
35. s and Heat Pumps for wind baffle construction NOTE Unit must be level to within 2 3 8 in ft per compressor manufacturer specifications Clearance Requirements When installing allow sufficient space for airflow clearance wiring refrigerant piping and service Allow 24 in 610 mm clearance to service end of unit and 48 in 1219 2 mm above unit For proper airflow a 6 in 152 4 mm clearance on 1 side of unit and 12 in 304 8 mm on all remaining sides must be maintained Maintain a distance of 24 in 609 6 mm between units Position so water snow or ice from roof or eaves cannot fall directly on unit 3 8 in 9 53 mm Dia Tiedown Knockouts in Basepan 2 Places J o Lo bh ot La k 4 View From Top UNIT BASE PAN TIEDOWN KNOCKOUT LOCATIONS in mm Dimension in mm A B cC 31 1 2 X 31 1 2 800 X 800 9 1 8 231 8 6 9 16 166 7 24 11 16 627 1 35 X 35 889 X 889 9 1 8 231 8 6 9 16 166 7 28 7 16 722 3 A05177 Fig 2 Tiedown Knockout Requirements On rooftop applications locate unit at least 6 in 152 4 mm above roof surface Operating Ambient The minimum outdoor operating ambient in cooling mode is 55 F 12 78 C without low ambient cooling enabled and the maximum outdoor operating ambient in cooling mode is 125 F 51 67 C The maximum outdoo
36. tiated NOTE The outdoor fan motor will continue to operate for one minute after compressor shuts off when the outdoor ambient is greater than or equal to 100 F 37 78 C With a call for heating the outdoor fan and compressor are energized The reversing valve is de energized in the heating mode Communication and Status Function Lights Green Communications COMM Light Evolution Control only A green LED COMM light on the outdoor board see Fig 11 indicates successful communication with the other system products The green LED will remain OFF until communications is established Once a valid command is received the green LED will turn ON continuously If no communication is received within 2 minutes the LED will be turned OFF until the next valid communication Amber Status Light An amber colored STATUS light is used to display the operation mode and fault codes as specified in the troubleshooting section See Table 4 for codes and definitions NOTE Only one fault code will be displayed on the outdoor unit control board the most recent with the highest priority Crankcase Heater Operation The crankcase heater when applicable is energized during the off cycle below 65 F 18 33 C Outdoor Fan Motor Operation The outdoor unit control energizes outdoor fan any time the compressor is operating except defrost and intermittently during low ambient cooling The outdoor fan remains energized for 15 minutes if a p
37. wires On Evolution only the 24vac LS liquid solenoid output terminal is energized for the liquid solenoid accessory the connection is located at the side of the control board just below the ABCD Evolution connector 10 Compressor Internal Relief The compressor is protected by an internal pressure relief IPR which relieves discharge gas into the compressor shell when differential between suction and discharge pressure exceeds 550 625 psi The compressor is also protected by an internal overload attached to motor windings TROUBLESHOOTING Systems Communication Failure If communication between User Interface UI and condensing unit is lost the outdoor control will flash the appropriate fault code See Table 4 Check the wiring to the UI indoor and outdoor units Pressure Switch Protection The outdoor unit is equipped with high and low pressure switches If the control senses the opening of a high or low pressure switch it will de energize the compressor contactor keep the outdoor fan operating for 15 minutes and display the appropriate fault code See table 4 After a 15 minute delay if there is still a call for cooling and the LPS or HPS is reset the compressor contactor is energized If the LPS or HPS has not closed after a 15 minute delay the outdoor fan is turned off If the open switch closes anytime after the 15 minute delay then the unit will resume operation with a call for cooling If the LPS or HPS tr
38. y Connect power wiring to contactor as shown in Fig 6 DISCONNECT PER N E C AND OR LOCAL CODES i CONTACTOR FIELD POWER O WRNG _ lt gt O ee OO _FIELD GROUND WIRING Fig 6 Line Connections pies GROUND LUG A91056 Connect Control Wirin Route 24v control wires through control wiring grommet and connect leads to control wiring See Thermostat Installation Instructions for wiring specific unit combinations Use No 18 AWG color coded insulated 35 C minimum wire If thermostat is located more than 100 ft 30 48 m from unit as measured along the control voltage wires use No 16 AWG color coded insulated wire to avoid excessive voltage drop All wiring must be NEC Class 1 and must be separated from incoming power leads Use furnace transformer fan coil transformer or accessory transformer for control power 24v 40va minimum NOTE Use of available 24v accessories may exceed the minimum 40va power requirement Determine total transformer loading and increase the transformer capacity or split the load with an accessory transformer as required Final Wiring Check IMPORTANT Check factory wiring and field wire connections to ensure terminations are secured properly Check wire routing to ensure wires are not in contact with tubing sheet metal etc Compressor Crankcase Heater When equipped with a crankcase heater furnish power to heater a minimum of 24 hr before starting unit
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