Bryant 286A - Manuals - manualsarea.com

Page 2 - Check Equipment and Job Site; Unpack Unit; Install on a Solid, Level Mounting Pad; UNIT BASE PAN; Clearance Requirements

2 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 diameter...

Page 3 - CAUTION; Make Piping Connections; WARNING; Outdoor Unit Connected to Factory--Approved Indoor

3 Operating Ambient The minimum outdoor operating ambient in cooling mode is55 _ F/12.78 _ C without low ambient cooling enabled, and the maximum outdoor operating ambient in cooling mode is 125 _ F/51.67 _ C. On Evolution communicating systems only (for both 286A and 288A), low ambient cooling is a...

Page 5 - Make Electrical Connections

5 Install Liquid--Line Filter Drier Indoor Refer to Fig. 3 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 above 5--in. (127 mm) liquid tube. Flow arrow must point towards indoor coil. 4. Conne...

Page 6 - ELECTRICAL SHOCK HAZARD; Compressor Crankcase Heater; NOTE; Install Accessories

6 NOTE : Install branch circuit disconnect of adequate size per NEC to handle unit starting current. Locate disconnect within sight fromand 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 disc...

Page 7 - Follow these steps to properly start up the system:; System Functions and Sequence of Operation; Cooling and Heating Operation

7 Start--Up CAUTION ! UNIT OPERATION AND SAFETY HAZARD Failure to follow this caution may result in minor personal injury, equipment damage or improper operation.Observe the following:1. Do not overcharge system with refrigerant.2. Do not operate unit in a vacuum or at negative pressure.3. Do not di...

Page 9 - Evolution Controlled low ambient cooling:; Defrost

9 UTILITY RELAY * UTILITY SIGNAL OPEN RELAY * SUPPLIED BY UTILITY PROVIDER MODEL PLUG A06525 LLS Liquid Line Solenoid MODEL PLUG A06526 Fig. 6 -- 2--Stage Control Board GENERAL INFORMATIONLow Ambient Cooling When this unit is operating below 55 _ F (12.78 _ C) outdoor temperature, provisions must be...

Page 10 - Check Charge; Heating Check Chart Procedure

10 The outdoor fan output (ODF) will remain off for 20 seconds aftertermination. This delay will allow time for the system to capture the heat from the outdoor coil and reduce the “steam cloud” effectthat may occur on transition from defrost to the heating cycle. The outdoor fan output OFF delay of ...

Page 13 - THERMISTOR CURVE; IMPORTANT; Thermistor Sensor Comparison; Table 5 – Two--Stage Compressor Resistances

13 0 10 20 30 40 50 60 70 80 90 0 (-17.77) 20 (-6.67) 40 (4.44) 60 (15.56) 80 (26.67) 100 (37.78) 120 (48.89) TEMPERATURE °F (°C) RESISTANCE (KOHMS) THERMISTOR CURVE A08054 Fig. 7 -- Resistance Values Versus Temperature If the outdoor air or coil thermistor should fail, the control will flash the ap...

Page 14 - Status Codes; EXAMPLE; OPERATION

14 Status Codes Table 6 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 of the status light. The short flash...

Page 15 - Variable Speed Furnace and 2-- Stage Heat Pump

15 RVS/Heat Stage 2 O/B W 2 Heat Stage 1 W /W 1 Compressor Low Y1 Compressor High Y/Y2 Fan G 24VAC Hot Heating Rh 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Common C Humidify HUM Outdoor Air Temp OAT Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Humidifier Solenoid Va...