Table of Contents
Advertisement
286A / 288A
Evolutiont Series Heat Pumps with Puronr 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 286A and 288A series units.
Information that is unique to the 286A series will be identified as
such; likewise information that is unique to the 288A 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. 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.
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 Instruction
! !
Indoor Thermostat Control Options
Evolution
Model
Control
286A
288A
* Units containing circuit board HK38EA015 or newer.
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
and install a lockout tag. 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
or equipment damage.
PuronR refrigerant systems operate at higher pressures than
standard R- -22 systems. Do not use R- -22 service equipment
or components on PuronR refrigerant equipment.
Standard
2---stage
Thermostat
Yes
Yes
Yes
Yes*
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Bryant Evolutiont 286A
Summary of Contents for Bryant Evolutiont 286A
-
Page 1: Installation Instruction
286A / 288A Evolutiont Series Heat Pumps with Puronr Refrigerant 2 To 5 Nominal Tons (Sizes 024 to 060) Installation Instruction NOTE: Read the entire instruction manual before starting the Indoor Thermostat Control Options installation. Standard Evolution 2---stage Model Unless otherwise noted, information in these installation Control Thermostat instructions pertain to both 286A and 288A series units. -
Page 2: Installation Recommendations
INSTALLATION RECOMMENDATIONS required unit changes for specific applications and for R- -22 retrofit. NOTE: In some cases noise in the living area has been traced to Check Equipment and Job Site gas pulsations from improper installation of equipment. 1. Locate unit away from windows, patios, decks, etc. where Unpack Unit unit operation sound may disturb customer. - Page 3 Operating Ambient Make Piping Connections The minimum outdoor operating ambient in cooling mode is WARNING 55_F/12.78_C without low ambient cooling enabled, and the maximum outdoor operating ambient in cooling mode is PERSONAL INJURY AND UNIT DAMAGE 125_F/51.67_C. On Evolution communicating systems only (for HAZARD both 286A and 288A), low ambient cooling is available to 0_F/- -17.78_C.
- Page 4 Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.) Information is Specific to 286A and 288A Models LIQUID RATED VAPOR* UNIT SIZE Connection Tube Connection Tube Diameter Diameter Diameter Diameter 286A024 286A036 286A048 286A060 1- - 1/8 288A024 288A036 288A048...
-
Page 5: Make Electrical Connections
Install Liquid- - Line Filter Drier Indoor Evacuate Refrigerant Tubing and Indoor Coil Refer to Fig. 3 and install filter drier as follows: CAUTION 1. Braze 5- -in. (127 mm) liquid tube to the indoor coil. 2. Wrap filter drier with damp cloth. UNIT DAMAGE HAZARD 3. -
Page 6: Compressor Crankcase Heater
Install Accessories NOTE: Install branch circuit disconnect of adequate size per NEC to handle unit starting current. Locate disconnect within sight from Refer to the individual instructions packaged with kits or and readily accessible from unit, per Section 440- -14 of NEC. accessories when installing. -
Page 7: Utility Interface
15 minutes. Check system refrigerant charge. minutes, the LED will be turned OFF until the next valid communication. NOTE: Non- -communicating (non- -Evolution) Bryant thermostats are equipped with a 15- -minute staging timer. This timer prevents Amber Status Light the two- -stage system from operating at high stage until unit has... -
Page 8: Time Delays
One Minute Stage Change Time Delay on 286A Models Time Delays When compressor changes stages from high to low or low to high, The unit time delays include: there is a 1- -minute time delay before compressor restarts. The S Five minute time delay to start cooling or heating operation outdoor fan motor remains running. -
Page 9: General Information
MODEL PLUG MODEL PLUG UTILITY RELAY UTILITY SIGNAL OPEN RELAY SUPPLIED BY UTILITY PROVIDER Liquid Line Solenoid A06525 A06526 Fig. 6 - - 2- -Stage Control Board GENERAL INFORMATION Defrost Low Ambient Cooling This control offers 5 possible defrost interval times: 30, 60, 90, 120 minutes, or AUTO. -
Page 10: Check Charge
The outdoor fan output (ODF) will remain off for 20 seconds after Accessory Liquid Solenoid with Evolution Communicating termination. This delay will allow time for the system to capture Control: When using the Evolution Control, the liquid- -line the heat from the outdoor coil and reduce the “steam cloud” effect solenoid output is provided at the Y1 connection. -
Page 11: Major Components
MAJOR COMPONENTS On new units, the model and serial numbers are input into the board’s memory at the factory. If a model plug is lost or missing at 2- - Stage Control Board initial installation, the unit will operate according to the The HP control board controls the following functions: information input at the factory and the appropriate error code will S High and low stage compressor contactor operation... - Page 12 286A Models Only - - Compressor Start Detection on and OCT faults will not be cleared. The code will continue to be flashed. Models with Bristol Compressors Only The control is shipped with the brownout active. The change in In low stage, if the specified start voltage at VR terminal is not status is remembered until toggled to a new status.
- Page 13 Thermistor Sensor Comparison THERMISTOR CURVE The control continuously monitors and compares the outdoor air temperature sensor and outdoor coil temperature sensor to ensure proper operating conditions. The comparison is: S In cooling if the outdoor air sensor indicates ≥ 10_F (≥...
-
Page 14: Status Codes
Status Codes Table 6 shows the status codes flashed by the amber status light. The short flash is 0.25 seconds ON and the long flash is 1.0 second Most system problems can be diagnosed by reading the status code ON. Time between flashes is 0.25 seconds. Time between short as flashed by the amber status light on the control board. - Page 15 2 STAGE Variable Speed 2-Stage HEAT PUMP COIL THERMIDISTAT Thermidistat Furnace Heat Pump RVS/Heat Stage 2 O/B W2 RVS Cooling O/B W2 Heat Stage 1 W/W1 Heat Stage 3 (furnace) W/W1 W/W1 REMOVE J2 JUMPER FOR Heat/Cool Stage 1 Y1 / W2 Compressor Low HEAT STAGING Heat/Cool Stage 2...
-
Page 16: Final Checks
29. All indoor coils must be installed with a hard- -shutoff Puron refrigerant TXV metering device. Catalog No. II286A ---06 E2009 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/09 Replaces: II286A--- 05 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Need help?
Do you have a question about the Evolutiont 286A and is the answer not in the manual?
Questions and answers