Table of Contents
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180A, 187A
Evolutionr Line Air Conditioners
with Puron Refrigerant
2 to 5 Nominal Tons (Sizes 024 to 060)
NOTE: Read the entire instruction manual before starting the
installation.
Unless otherwise noted, information in these installation
instructions pertain to both 180A and 187A series units.
Information that is unique to the 180A series will be identified as
such; likewise information that is unique to the 187A series will
also be identified.
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
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.
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may 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.
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.
Installation Instructions
! !
WARNING signifies hazards
Indoor Thermostat Control Options
Model
187A
180A
* Units containing circuit board HK38EA015 or newer.
!
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.
WARNING
!
.
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal injury,
death and/or equipment damage.
Puron refrigerant systems operate at higher pressures than
standard R- -22 systems. Do not use R- -22 service equipment
or components on Puron equipment.
Evolution
Standard 2--- stage
Control
Thermostat
Yes
Yes
WARNING
Yes
Yes*
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Table of Contents
Related Manuals for Bryant Evolution 180A
Summary of Contents for Bryant Evolution 180A
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Page 1: Installation Instructions
180A, 187A Evolutionr Line Air Conditioners with Puron Refrigerant 2 to 5 Nominal Tons (Sizes 024 to 060) Installation Instructions NOTE: Read the entire instruction manual before starting the Indoor Thermostat Control Options installation. Evolution Standard 2--- stage Unless otherwise noted, information in these installation Model Control Thermostat... -
Page 2: Installation Recommendations
INSTALLATION RECOMMENDATIONS can be no deviation. Consult the Application Guideline and Service Manual – Air Conditioners and Heat Pumps Using Puron NOTE: In some cases noise in the living area has been traced to Refrigerant to obtain required unit changes for specific applications gas pulsations from improper installation of equipment. -
Page 3: Operating Ambient
On rooftop applications, locate unit at least 6 in. (152.4 mm) above CAUTION roof surface. Operating Ambient UNIT DAMAGE HAZARD The minimum outdoor operating ambient in cooling mode is Failure to follow this caution may result in equipment 55_F/12.78_C without low ambient cooling enabled, and the damage or improper operation. - Page 4 Table 2 – Accessory Usage REQUIRED FOR REQUIRED FOR SEA COAST LOW --- AMBIENT COOLING REQUIRED FOR LONG LINE Accessory APPLICATIONS APPLICATIONS APPLICATIONS* (Within 2 miles/3.22 km) (Below 55°F/12.8_C) Accumulator Compressor Start Assist Capacitor and Standard on 187A models. Standard on 187A models. Standard on 187A models.
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Page 5: Electrical Shock Hazard
Refrigerant tubes and indoor coil should be evacuated using the WARNING recommended deep vacuum method of 500 microns. The alternate triple evacuation method may be used. See Service Manual for triple evacuation method. Always break a vacuum with dry ELECTRICAL SHOCK HAZARD nitrogen._ Failure to follow this warning could result in personal Deep Vacuum Method... -
Page 6: Make Airflow Selections
15 minutes. Check system refrigerant charge. recommended airflow, refer to the FV4 Installation Instructions. NOTE: Non- -communicating (non- -Evolution) Bryant electronic The FV4 utilizes an Easy Select control board that allows the installing technician to select proper airflows. For adjustments to thermostats are equipped with a 15- -minute staging timer. -
Page 7: Utility Interface
System Functions And Sequence Of Operation products. The green LED will remain OFF until communications is established. Once a valid command is received, the green LED will The outdoor unit control system has special functions. The turn ON continuously. If no communication is received within 2 following is an overview of the 2- -stage control functions: minutes, the LED will be turned OFF until the next valid Cooling Operation... -
Page 8: Crankcase Heater Operation
Compressor Operation on 180A Models In low ambient cooling (below 55_F/12.78_C) on 187A and 180A models, the control board cycles the fan off and on. The basic scroll design has been modified with the addition of an Time Delays internal unloading mechanism that opens a by- -pass port in the first compression pocket, effectively reducing the displacement of the The unit time delays include: scroll. -
Page 9: Check Charge
Check Charge Table 4 – Model Plug Information PIN RESISTANCE All 180A and 187A units must be charged in high stage only. MODEL MODEL PLUG (K--- ohms) NUMBER Factory charge amount and desired subcooling are shown on unit NUMBER Pins 1--- 4 Pins 2--- 3 rating plate. - Page 10 187A Models Only, Compressor Start Detection The control is shipped with the brownout active. The change in status is remembered until toggled to a new status. A power In low- -stage, if the specified start voltage at VR terminal is not down/power up sequence will not reset the status.
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Page 11: Major Components
Table 5 – 2 ---Stage Compressor (Winding Resistance at 70_F ± 20_ / 21.11_C ± 11.11_C) Winding 187A024 187A036 187A048 187A060 Start (S---C) 2.74 1.98 1.55 0.74 Run (R ---C) 0.80 0.75 0.48 0.36 Winding 180A024 180A036 180A048 180A060 Start (S--- C) 1.40 1.29 1.52... -
Page 12: Final Checks
OAT Thermistor must be locked in OCT Thermistor must be place with spherical nib end facing to- secured tight on the liquid wards the front of the control box tube. Fig. 8 - - Outdoor Air Thermistor (OAT) Attachment Fig. 9 - - Outdoor Coil Thermistor (OCT) Attachment FINAL CHECKS CARE AND MAINTENANCE IMPORTANT: Before leaving job, be sure to do the following:... - Page 13 Status Codes between short flash and first long flash is 1.0 second. Time between code repeating is 2.5 seconds with LED OFF. Table 6 shows the status codes flashed by the amber status light. Count the number of short and long flashes to determine the Most system problems can be diagnosed by reading the status code appropriate flash code.
- Page 14 Two-Stage Variable Speed Variable Speed 2-Stage Thermidistat Air Conditioner Fan Coil Furnace Air Conditioner Thermidistat Heat Stage 2 O/B W2 RVS/Heat Stage 2 O/W2/B Heat Stage 1 W/W1 Heat Stage 1 W/W1 REMOVE J2 Cool Stage 1 Y1 / W2 JUMPER FOR Compressor Low HEAT STAGING...
- Page 15 Communicating AC//HP User Interface Fan Coil Humidifier A03076 Fig. 11 - - Evolution Furnace or Fan Coil Wiring with Communicating 2- -stage AC PURONR (R- -410A) REFRIGERANT QUICK REFERENCE GUIDE S 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 refrigerant S Puron refrigerant cylinders are rose colored.
- Page 16 Catalog No. II180A ---06 E2009 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/09 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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Questions and answers
Why won't condenser come on from tstat,but when manually pushing in contactor the compresser will come on but the condenser fan won't spin even when manually trying to spin?
Possible causes for the Bryant 180A condenser not turning on from the thermostat, while the compressor activates when the contactor is manually pushed and the condenser fan does not spin, include:
1. Stuck or faulty contactor – The contactor may be stuck closed or not receiving the 24V signal from the control board.
2. Wiring error – Incorrect or loose wiring at the control board (ABCD connections) or contactor may prevent proper operation.
3. Control board issue – The control board may not be sending the correct signal to energize the contactor or fan motor.
4. Thermistor failure – A failed outdoor air or coil thermistor may cause the control to block operation and flash a fault code.
5. Fan motor failure – The ECM outdoor fan motor on 180A models may be faulty or not receiving the proper signal from the control board.
6. Low ambient conditions – If outdoor coil temperature is too low compared to ambient, the fan may be intentionally turned off by the control system.
7. Fault code lockout – The control may have detected a fault (e.g., thermal protector open) and is in a 15-minute lockout, during which only the fan may run or all components may be disabled.
Check for fault codes on the control board, verify 24V signals, inspect wiring, and test the fan motor and thermistors.
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@Carl Edward Holtz I read the trouble code 4 short flashes 7 long flashes but on condenser cover it didn't list a 47 code. Either I intrepid the flashes wrong or I need the actual manual for the code.
@Mr. Anderson Ambient temp way 92f,indoor fan operates in the on position,contacted was open I had to push it in to energize the compressor. With the ecm condenser motor should it spin freely when spinning by hand? If so it was somewhat difficult to spin very well, almost like it would lock up after about a 3rd of rotation.
How to test the condenser motor. I have 220 between l1 and l2 when calling for cooling.
To test the Bryant 180A condenser motor, follow these steps:
1. Check Compressor Amperage Change:
- When the unit stages from low to high (or vice versa), wait 5 seconds and measure compressor amperage.
- A change of at least 20% in amperage should be observed.
2. Test Voltage at Solenoid Plug:
- If amperage doesn't change as expected, remove the solenoid plug from the compressor.
- With the unit running and calling for high-stage, check the voltage at the plug using a DC voltmeter.
- The voltage should be 24 VDC.
3. Check Compressor Unloader Coil Resistance:
- If correct voltage is present, measure the resistance of the unloader coil.
- It should be between 32 and 60 ohms depending on compressor temperature.
- If resistance is infinite, much lower than 32 ohms, or grounded, the compressor must be replaced.
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