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280ANV EVOLUTION
VARIABLE SPEED HEAT PUMP
WITH PURONr REFRIGERANT
(2 - - 5 Ton)
NOTE: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS
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WARNING
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EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors.
mixtures of air or gases containing
oxygen can lead to an explosion.
R
EXTREME
Installation Instructions
PAGE NO.
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Pressurized
Information in these installation instructions pertains only to 280A
series units.
SAFETY CONSIDERATIONS
1
Improper installation, adjustment, alteration, service, maintenance,
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or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
3
damage. Consult a qualified installer, service agency, or your
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distributor or branch for information or assistance. The qualified
installer or agency must use factory- -authorized kits or accessories
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when modifying this product. Refer to the individual instructions
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packaged with the kits or accessories when installing.
3
Follow all safety codes. Wear safety glasses, protective clothing,
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and work gloves. Use quenching cloth for brazing operations.
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Have fire extinguisher available. Read these instructions
7
thoroughly and follow all warnings or cautions included in
literature and attached to the unit. Consult local building codes and
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current editions of the National Electrical Code ( NEC ) NFPA 70.
8
In Canada, refer to current editions of the Canadian electrical code
8
CSA 22.1.
9
Recognize safety information. This is the safety- -alert symbol
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 which 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.
!
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.
CAUTION
! !
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Related Manuals for Bryant EVOLUTION 280A
Summary of Contents for Bryant EVOLUTION 280A
-
Page 1: Table Of Contents
280ANV EVOLUTION EXTREME VARIABLE SPEED HEAT PUMP WITH PURONr REFRIGERANT (2 - - 5 Ton) Installation Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS Information in these installation instructions pertains only to 280A series units. PAGE NO. -
Page 2: Installation Recommendations
Indoor Thermostat Control Options 5. Leave some slack between structure and unit to absorb vi- bration. Evolution Model Control 6. When passing refrigerant tubes through the wall, seal open- ing with RTV or other pliable silicon- -based caulk (see Fig. 280A Yes* 7. -
Page 3: Installation
INSTALLATION 3/8--- in. (9.53 mm) Dia. Tiedown Knockouts in IMPORTANT: Effective January 1, 2015, all split system and Basepan(2) Places packaged air conditioners must be installed pursuant to applicable regional efficiency standards issued by the Department of Energy. Specifications for this unit in residential new construction market require the outdoor unit, indoor unit (including metering device), refrigerant tubing sets, and filter drier, and muffler listed in pre- -sale literature. -
Page 4: Step 6 - Liquid Line Solenoid Valve (Lsv)
Step 6 — In Long- -Line Applications, Install Step 7 — Make Piping Connections Liquid- -Line Solenoid Valve (LSV) WARNING For refrigerant piping arrangements with equivalent lengths of greater than 80 ft. (24.38 m) and/or when elevation difference PERSONAL INJURY AND UNIT DAMAGE between indoor and outdoor unit is greater than 20 ft. - Page 5 Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.) LIQUID VAPOR* UNIT SIZE Connection Tube Connection Max (Rated) Minimum Tube Diameter Diameter Diameter Diameter Diameter 280ANV024 280ANV036 280ANV048 1--- 1/8 280ANV060 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 line sets. Notes: 1.
- Page 6 Outdoor Unit Connected to Factory- - Approved Indoor Unit Outdoor unit contains correct system refrigerant charge for operation with factory- -approved, AHRI- -rated smallest indoor unit when connected by 15 ft. (4.57 m) of field- -supplied or factory- -accessory tubing, and factory- -supplied filter drier. Check refrigerant charge for maximum efficiency.
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Page 7: Step 8 - Make Electrical Connections
Connect Ground and Power Wires 5000 Connect ground wire to ground connection in control box for 4500 safety. Connect power wiring to contactor as shown in Fig. 7. 4000 LEAK IN 3500 DISCONNECT SYSTEM PER N. E. C. AND/OR 3000 LOCAL CODES 2500 CONTACTOR... -
Page 8: Step 10 - Install Accessories
External to the unit, the same accessories such as the liquid line solenoid, support feet, snow rack, wind baffle etc., are available on other Bryant units can also be used on this line of product. Refer to the individual Installation Instructions packaged with kits or accessories when installing. -
Page 9: Step 12 - System Functions And Seq. Of Op
Step 12 — System Functions And Sequence Of Operation The 280A models utilize an Evolution Communicating User Interface (UI). With a call for cooling, the outdoor fan and compressor are energized to run at lowest cooling demand. If this does not satisfy cooling demand, the system will ramp up in stages until it satisfies the demand. -
Page 10: Step 13 - Check Charge
General Information Defrost Evolution Controlled low ambient cooling This user interface (UI) offers 5 possible defrost interval times: 30, 60, 90, 120 minutes, or AUTO. The default is AUTO. This unit is capable of low ambient cooling down to 0_F Defrost interval times: 30, 60, 90, and 120 minutes or AUTO are (- -17.8_C) with Low Ambient enabled on the Evolution Control. - Page 11 NOTE: UI indicates acceptable conditions if outside of this range. Heating Check Chart Procedure Do not charge if outside 65F (18C) and 100F (38C) outdoor In heating mode, the required charging method is by weigh- -in. On temperature. new installation or complete recharge, refer to the REQUIRED If the range is acceptable, go the CHARGING screen in the user CHARGE CALCULATION screen in the user interface (UI) to interface (UI).
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Page 12: Step 14 - Pumpdown & Evacuation
Charging In Cooling Mode - 280ANV024/036 Charging In Cooling Mode - 280ANV048/060 See user interface set in Charging Mode See user interface set in Charging Mode Heating Check Chart - 280ANV024/036 Heating Check Chart - 280ANV048/060 For use in Heating Charging Mode only For use in Heating Charging Mode only 2757 3102... -
Page 13: Major Components
MAJOR COMPONENTS TROUBLESHOOTING Variable speed Control Board Systems Communication Failure The HP control board controls the following functions: If communication with the Evolution control is lost with the User Interface (UI), the control will flash the appropriate fault code (see S Compressor speed Table 7). - Page 14 Brown- - Out Protection If the sensors are out of range, the control will flash the appropriate fault code as shown in Table 7. If the line voltage is less than 187v for at least 4 seconds, the The thermistor comparisons are not performed during low ambient contactor and fan relay are de- -energized.
- Page 15 ECM Fan Motor If verification of proper operation is required for the ECM motor PRESSURE TRANSDUCER (SPT) used in this unit, follow these steps: ACCUMULATOR TUBE 1. Verify that the 230v input to the transformer is present. SUCTION TUBE 2. Verify that the control board is powered 18 volts to 30 volts COMPRESSOR SUCTION THERMISTOR (OST) from the transformer.
- Page 16 User Interface (UI) Furnace or Fan Coil VS HP C and D not required on VS Heat Pump Humidifier A12055 Fig. 23 - - Evolution Furnace or Fan Coil Wiring with Communicating Variable Speed HP Furnace or Fan Coil VS HP Conventional Dual-Fuel Thermostat...
- Page 17 SEC2 SEC1 PWM2 PWM1 PL11 COMM STATUS LS Y UTIL FORCED A B C NO MODEL DEFROST Utility Interface* A11544 Fig. 25 - - Variable Speed Control Board with optional Utility Relay SEC2 SEC1 PWM2 PWM1 PL11 COMM STATUS LS Y UTIL FORCED A B C NO...
- Page 18 Table 7 – Troubleshooting...
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Page 19: Final Checks
FINAL CHECKS CARE AND MAINTENANCE IMPORTANT: IMPORTANT: Before leaving job, be For continuing high performance and to minimize possible equipment failure, periodic maintenance must be sure to do the following: performed on this equipment. 1. Ensure that all wiring is routed away from tubing Frequency of maintenance may vary depending upon and sheet metal edges to prevent rub- -through or geographic areas, such as coastal applications. - Page 20 Catalog No. II280A ---04 EBryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Edition Date: 09/18 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Replaces: II280A--- 03...
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