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RESIDENTIAL AIR CONDITIONERS AND HEAT PUMPS
USING R- -22 AND PURONR REFRIGERANT
UNIT IDENTIFICATION
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SAFETY CONSIDERATIONS
INTRODUCTION
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INSTALLATION GUIDELINE
ACCESSORIES AND DESCRIPTIONS
LOW- -AMBIENT GUIDELINE
LONG LINE GUIDELINE
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CABINET ASSEMBLY & COMPONENTS
ELECTRICAL
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Aluminum Wire
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Contactor
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Capacitor
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Cycle Protector
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Crankcase Heater
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Time- -Delay Relay
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PRESSURE SWITCHES
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DEFROST THERMOSTAT
DEFROST CONTROL BOARD
OUTDOOR FAN MOTORS
COPELAND SCROLL COMPRESSOR
LG SCROLL COMPRESSOR
COMPRESSOR TROUBLESHOOTING
Compressor Failures
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Mechanical Failures
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Noisy Compressor
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Electrical Failures
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REFRIGERATION SYSTEM
Refrigerant
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Servicing Systems on Roofs With Synthetic Materials
Brazing
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Aluminum Brazing
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Service Valves and Pump down
Liquid Line Filter Drier
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Suction Line Filter Drier
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Accumulator
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Thermostatic Expansion Valve (TXV)
MAKE PIPING CONNECTIONS
Application Guideline
and Service Manual
TABLE OF CONTENTS
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PAGE
2
REFRIGERATION SYSTEM REPAIR
3
Leak Detection
3
Coil Removal
3
Aluminum Coil Removal
4- -5
Compressor Removal and Replacement
6
System Clean- -Up After Burnout
7
Evacuation
7- -10
CHECK CHARGE
11- -13
TROUBLESHOOTING WITH SUPERHEAT
SINGLE- -STAGE COMMUNICATION
11
11
TWO- -STAGE 286B, 289B / 180B, 187B
11
APPLICATION GUIDELINES
12
MODEL PLUG
12
Airflow Selections For 187B / 286B / 180B /289B Using
Non- -Communicating (Non- -Evolution) Thermostats
13
Airflow Selection For FV4 Fan Coils For 180B, 187B, 286B,
13
289B Using Non- -Communicating (non- -Evolution) Thermostats
14
52
14
GENERAL INFORMATION
19
CHECK CHARGE
19
SYSTEM FUNCTION AND
SEQUENCE OF OPERATION
20
TROUBLESHOOTING
21- -23
TWO STAGE NON- -COMMUNICATING
21
127A / CA17 / BA17/ 226A / CH17 /BH17
21
Operating Ambient
22
Airflow Selections (ECM Furnaces)
23
Airflow Selection for Variable Speed Furnaces
24- -30
(non- -communicating)
24
Airflow Selection for FV4C Fan Coils
(non- -communicating)
24
Airflow Selection for FZ4A Fan Coils
25
(non- -communicating)
25
SYSTEM FUNCTION AND
25
SEQUENCE OF OPERATION
28
CHECK CHARGE
28
CARE AND MAINTENANCE
29
PURON QUICK REFERENCE GUIDE
30
AC TROUBLESHOOTING CHART
31
HP TROUBLESHOOTING CHART - - HEATING CYCLE
HP TROUBLESHOOTING CHART - - COOLING CYCLE
INDEX OF TABLES
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PAGE
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Related Manuals for Bryant CA17
Summary of Contents for Bryant CA17
- Page 1 ......127A / CA17 / BA17/ 226A / CH17 /BH17 ...
- Page 2 UNIT IDENTIFICATION This section explains how to obtain the model and serial number Troubleshooting Charts for Air Conditioners and Heat Pumps are from unit rating plate. These numbers are needed to service and provided in the appendix at back of this manual. They enable the repair the Puronr and R- -22 air conditioner or heat pump.
- Page 3 SAFETY CONSIDERATIONS INSTALLATION GUIDELINE Residential New Construction Installation, service, and repair of these units should be attempted only by trained service technicians familiar with standard service Specifications for these units in the residential new construction instruction and training material. market require the outdoor unit, indoor unit, refrigerant tubing sets, All equipment should be installed in accordance with accepted metering device, and filter drier listed in Product Data (PD).
- Page 4 ACCESSORIES Table 1—Required Field- -Installed Accessories for Air Conditioners REQUIRED FOR REQUIRED FOR LOW --- AMBIENT REQUIRED FOR SEA COAST ACCESSORY COOLING APPLICATIONS LONG LINE APPLICA- APPLICATIONS (Below 55F/12.8_C) TIONS* (Within 2 miles/3.22 km) Ball Bearing Fan Motor Yes {} Compressor Start Assist Capacitor and Relay Yes** Crankcase Heater...
- Page 5 Suggested for all commercial applications. 5. Outdoor Air Temperature Sensor Designed for use with Bryant Thermostats listed in this publication. This device enables the thermostat to display the outdoor temperature. This device is required to enable special thermostat features such as auxiliary heat lock out.
- Page 6 LOW- -AMBIENT COOLING GUIDELINE The minimum operating temperature for these units in cooling to Fig. 1 for wind baffle construction details for Base through mode is 55_F/12.7_C outdoor ambient without additional Deluxe models. First production of Performance units are capable accessories.
- Page 7 LONG LINE GUIDELINE CABINET ASSEMBLY Basic Cabinet Designs Refer to Residential Piping and Long Line Guideline for air conditioner and heat pump systems using Puron refrigerant or Certain maintenance routines and repairs require removal of the Long Line Guideline for R- -22 Air Conditioners and Heat Pumps. cabinet panels.
- Page 8 Access Compressor Or Other Internal Cabinet Components NOTE: It is not necessary to remove the top cover to gain access. Remove Fan Motor Assembly - - Mid- -Tier / Deluxe Removing the top cover may cause grill panels, corner posts, 1.
- Page 9 Legacy Line AC Control Box Preferred HP Control Box Fig. 3 – Legacy and Preferred Line Control Box Identification...
- Page 10 Labeling Wiring Label Charging Label Rating Plate Caution Label (3-phase only) Piston Label Warning Label Mid ---Tier / Deluxe Wiring Label Rating Plate Charging Label Caution Label Piston Label Warning Label Entry Fig. 4 – Label Locations...
- Page 11 ELECTRICAL 3. Reconnect leads and apply low- -voltage power to contactor coil. This may be done by leaving high- -voltage power to outdoor unit off and turning thermostat to cooling. Check WARNING voltage at coil with voltmeter. Reading should be between 20v and 30v.
- Page 12 RELAY CRANKCASE HEATER A94006 Fig. 5 – Capacitors Cycle Protector Bryant thermostats have anti- -cycle protection built in to protect the A170062 compressor. Should a non- -Bryant stat be utilized, it is Fig. 7 – Wiring for 460 volt recommended to add a cycle protector to the system. Solid- -state The crankcase heater is powered by high- -voltage power of unit.
- Page 13 Time- -Delay Relay (TDR) High- -Pressure Switch (AC & HP) The high- -pressure switch is located in liquid line and protects The TDR is a solid- -state control, recycle delay timer which keeps against excessive condenser coil pressure. It opens around 610 or indoor blower operating for 90 sec after thermostat is satisfied.
- Page 14 When the cycle is complete, R- -Y is turned off and compressor and check voltage on contactor coil. If no voltage is present, outdoor fan should stop. With Bryant thermostats, the O terminal check for opened pressure switch. remains energized in the cooling mode. If the mode is switched to 3.
- Page 15 4. If contactor is closed and unit will still not run, check 4. Jumper between DFT and R terminals on control board as wiring, capacitor and compressor shown in Fig. 9. Defrost Speedup (KH32EA001/007) 5. Disconnect outdoor fan motor lead from OF2. Tape lead to prevent grounding.
- Page 16 When the cycle is complete, R- -Y is turned off and compressor and thermostat to ensure proper defrost operation. outdoor fan should stop. When using Bryant thermostats, the NOTE: With timing cycle set at 90 minutes, unit initiates defrost reversing valve remains energized in the cooling mode until the within approximately 21 sec.
- Page 17 Troubleshooting (HK32EA003/008) pins with jumper wires. The pigtail may have a bad connection or be mis- -wired. If outdoor unit will not run: HK32EA008 DEFROST CONTROL 1. Does the Y input have 24 volts from thermostat? If not, HK32EA008 defrost control used most...
- Page 18 QUIET SHIFT INTERVAL TIMER OFF T2 C C O O R W SPEEDUP A05378 A170235 Fig. 11 – Defrost Control HK32EA008 Fig. 12 – Defrost Control HK32EA009 A170130 Fig. 13 – Defrost Control HK32EA010...
- Page 19 OUTDOOR FAN MOTORS However, these plugs can be used only on specific compressors. The configuration around the fusite terminals is outlined on the ECM Fan Motor terminal covers. The slot through which wires of plug are routed is oriented on the bottom and slightly to the left. The correct plug can Some single stage outdoor units will be equipped with ECM fan be connected easily to compressor terminals and plug wires can motors.
- Page 20 pressure relief port. The pressure relief port is a safety device, The DTS will break the Y signal in the 24 volt circuit if it trips open. designed to protect against extreme high pressure. The relief port has an operating range between 550 to 625 psi differential pressure Test sensor wires for continuity, open above 239- -257F_F for Puronr and 350 to 450 psi differential pressure for R- -22.
- Page 21 COMPRESSOR TROUBLESHOOTING 3. Expose the sensor holder Compressor Failures Compressor failures are classified in 2 broad failure categories; mechanical and electrical. Both types are discussed below. Mechanical Failures A compressor is a mechanical pump driven by an electric motor contained in a welded or hermetic shell. In a mechanical failure, motor or electrical circuit appears normal, but compressor does not function normally.
- Page 22 Noisy Compressor problem it may be assumed a locked condition. Ensure refrigerant has had ample time to equalize and boil out of Noise may be caused by a variety of internal and external factors. the compressor before condemning. Careful attention to the “type” of noise may help identify the 10.
- Page 23 (EXAMPLE) TO DETERMINE INTERNAL CONNECTIONS OF SINGLE- PHASE MOTORS (C,S,R) EXCEPT SHADED-POLE DEDUCTION: POWER OFF! (GREATEST RESISTANCE) RUN WINDING (R) 5.8Ω (OHM) START WINDING (S) OHMMETER (SMALLEST RESISTANCE) IS COMMON (C) 0-10Ω SCALE 0.6Ω BY ELIMINATION (REMAINING RESISTANCE) IS COMMON, 5.2Ω...
- Page 24 REFRIGERATION SYSTEM Ground Circuit To determine if a wire has broken or come in direct contact with Refrigerant shell, causing a direct short to ground, follow these steps: 1. Allow crankcase heaters to remain on for several hours WARNING before checking motor to ensure windings are not saturated with refrigerant.
- Page 25 Brazing a. Joint must be free of oil, grease, rust, corrosion, and refrigerant. This section on brazing is not intended to teach a technician how to 2. Wire brush to remove oxides from area braze. There are books and classes which teach and refine brazing techniques.
- Page 26 After the brazing operation and the refrigerant tubing and TXV for metering in the cooling mode. AccuRaterr piston has a evaporator coil have been evacuated, the valve stem can be turned refrigerant metering hole through it. The piston seats against the counterclockwise until back- -seats, which releases refrigerant into piston body in heating mode and meters the refrigerant in heating tubing and evaporator coil.
- Page 27 Reversing Valve If valve is defective: 1. Shut off all power to unit and remove charge from system. In heat pumps, changeover between heating and cooling modes is accomplished with a valve that reverses flow of refrigerant between 2. Remove solenoid coil from valve body. Remove valve by the two coils.
- Page 28 Liquid Line Filter Drier Install Liquid- -line Filter Drier Indoor - - HP Refer to Fig. 24 and install filter drier as follows: Filter driers are specifically designed for R- -22 or Puronr refrigerant. Only operate with the appropriate drier using factory 1.
- Page 29 Accumulator CAUTION The accumulator is specifically designed to operate with Puronr or R22 respectfully; use only factory- -authorized components. PERSONAL INJURY HAZARD Under some light load conditions on indoor coils, liquid refrigerant is present in suction gas returning to compressor. The accumulator Failure to follow this caution may result in personal injury.
- Page 30 Thermostatic Expansion Valve (TXV) IMPORTANT: The TXV should be mounted as close to the indoor coil as possible and in a vertical, upright position. Avoid All (post- -2006) furnace coils, most fan coils and a few heat pumps mounting the inlet tube vertically down. The valve is more have a factory installed thermostatic expansion valve (TXV).
- Page 31 Replacing TXV on an Indoor Coil (pre- -2006) 10. Attach TXV bulb to vapor tube inside cabinet, in same location as original was when removed, using supplied bulb 1. Pump system down to 2 psig, if possible, and recover clamps (nylon or copper). See Fig. 26 for correct refrigerant.
- Page 32 REFRIGERATION SYSTEM REPAIR Leak Detection New installations should be checked for leaks prior to complete charging. If a system has lost all or most of its charge, system must be pressurized again to approximately 150 psi minimum and 375 psi maximum. This can be done by adding refrigerant using LEAK normal charging procedures or by pressurizing system with DETECTOR...
- Page 33 Aluminum Coil Removal Compressor Removal and Replacement For all aluminum coils, the coil has two fin isolators on the top of Once it is determined that compressor has failed and the reason the coil as shown in Fig. 30. Also, the top and bottom of the tube established, compressor must be replaced.
- Page 34 System Clean- -Up After Burnout 5000 Some compressor electrical failures can cause motor to burn. When 4500 this occurs, by- -products of burn, which include sludge, carbon, 4000 and acids, contaminate system. Test the oil for acidity using POE LEAK IN 3500 oil acid test to determine burnout severity.
- Page 35 CHECK CHARGE (See Charging Tables 11 & 13) Factory charge amount and desired subcooling are shown on unit rating plate. Charging method is shown on information plate 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/21.11_C and 100_F/37.78_C, and the indoor temperature is between...
- Page 36 TROUBLESHOOTING WITH SUPERHEAT Low Superheat with Normal or Low Suction Pressure This troubleshooting routine was developed to diagnose cooling problems using superheat in TXV systems. It is effective on heat NOTE: Normal or low suction pressure is considered for pumps in cooling mode as well as air conditioners. The system R- -22: <...
- Page 37 High Superheat with Normal or High Suction Pressure Pseudo Evaporator Superheat Instructions NOTE: Normal to High suction pressure is considered The Pseudo Evaporator Superheat calculates the superheat at the outlet of the evaporator with known and available information. for R- -22: > 65 psig, Puron: > 110 psig. An application issue or Because there generally is not a pressure port on the vapor line at other system component failure typically causes this condition.
- Page 38 Table 6—Puron System Suction Pressure Drop Puron Suction Line Pressure Drop (psig) Nominal Suction Line Pressure Suction Size Drop Velocity Total Equivalent Line Length (ft) (Btuh) (in.) (psi/100 ft) 1649 18000 18000 1018 18000 16.7 2199 1357 24000 24000 24000 1696 30000 30000...
- Page 39 Table 7—R- -22 System Suction Pressure Drop R ---22 Suction Line Pressure Drop (psig) Nominal Line Pressure Suction Size Drop Velocity Total Equivalent Line Length (ft) (Btuh) (in.) (psi/100 ft) 13.6 2563 18000 1539 18000 18000 1025 18000 2052 24000 24000 1367 24000...
- Page 40 Table 8—Puronr Refrigerant Pressure Temperature Chart PSIG PSIG F PSIG F PSIG F PSIG F PSIG F PSIG F --38.2 39.9 76.9 102.9 123.3 140.2 --35.3 40.8 77.4 103.3 123.6 140.5 --32.5 41.6 78.0 103.7 124.0 140.8 --29.9 42.5 78.5 104.1 124.3 141.1...
- Page 41 Table 9—R- -22 Refrigerant Pressure Temperature Relationship psig psig psig psig psig psig psig F F F F F F F - -25.9 41.7 76.2 101.1 120.9 137.5 152.0 - -24.0 42.3 76.7 101.4 121.1 137.8 152.2 - -22.1 43.0 77.1 101.7 121.4...
- Page 42 Table 10—Puron Subcooling Chart Liquid Line Temperature (_F) Liq Press P---T Subcooling (_F) (_F) (psig)
- Page 43 Table 11—Puron Superheat Chart Vapor Line Temperature (F) Superheat (F) Vap Press P- -T (F) (psig)
- Page 44 Table 12—R- -22 Subcooling Chart R---22 Liquid Line Temperature (_F) Liquid Subcooling (_F) PT (F) Pres (psig) 103 101 105 103 101 106 104 102 100 108 106 104 102 100 109 107 105 103 101 109 107 105 103 101 112 110 108 106 104 102 100 114 112 110 108 106 104 102 100 115 113 111...
- Page 45 Table 13—R- -22 Superheat Chart R---22 Vapor Line Temperature (_F) Vapor Superheat (_F) PT (F) Press (psig)
- Page 46 SINGLE- -STAGE COMMUNICATING HEAT PUMP SYSTEM FUNCTIONS Outdoor Fan Motor Operation AND SEQUENCE OF OPERATION The outdoor unit control energizes outdoor fan any time the compressor is operating (except defrost and intermittently during The outdoor unit control system has special functions. low ambient cooling).
- Page 47 Utility Interface DEFROST With Evolution Control This control offers 4 possible defrost interval times: 30, 60, 90 or 120 minutes. These are selected by dip switches on the unit control The input labeled UTIL is active only when a communicating board, or in the Evolution control (if used).
- Page 48 TROUBLESHOOTING sequence of operation occurs: Defrost Initiation – the compressor is de–energized for 70 seconds. During this 70 second compressor Systems Communication Failure off time, the reversing valve will be energized. Once the 70 second compressor off time has been reached, the compressor will be If communication between User Interface (UI), and condensing energized then the outdoor fan will be de–energized at which time unit is lost, the outdoor control will flash the appropriate fault...
- Page 49 Thermistor Sensor Comparison If the thermal cutout trips for three consecutive cycles, then unit operation is locked out for 4 hours and the appropriate fault code The control continuously monitors and compares the outdoor air (See Table 14) is displayed. temperature sensor and outdoor coil temperature sensor to ensure Contactor Shorted Detection proper operating conditions.
- Page 50 Table 14—Status Codes AMBER LED OPERATION FAULT POSSIBLE CAUSE AND ACTION FLASH CODE Standby – no call for On solid, no None Normal operation unit operation flash Cool/Heat Operation None 1, pause Normal operation System Communica- Communication with user interface lost. Check wiring to UI, indoor tions Failure and outdoor units High Pressure Switch...
- Page 51 TWO- -STAGE 286B/289B 180B/187B Application Guidelines Model Plug Bryant designed and tested the two- -stage air conditioner and heat Each control board contains a model plug. The correct model plug pump products with Puron refrigerant to operate at a minimum must be installed in order for the system to operate properly.
- Page 52 Airflow Selections for 187B / 286B / 180B /289B Low pressure switch is ignored for first 3 minutes during Using Non- -Communicating (Non- -Evolution) low ambient start up. After 3 minutes, if LPS trips, then outdoor fan motor is turned off for 10 minutes, with the Thermostats compressor running.
- Page 53 has been reached, the compressor will be energized then the The ODF fan delay defeat can be toggled by shorting the outdoor fan will be de- -energized at which time the normal defrost forced defrost pins for >15 seconds while in the standby cycle begins.
- Page 54 NOTE: Only one code will be displayed on the outdoor unit units. If pressure and temperature do not match on chart, system refrigerant charge may not be correct. Do not use chart to adjust control board (the most recent, with the highest priority). refrigerant charge.
- Page 55 The outdoor Integral Control Motor (ECM), is a variable- -speed ECM Fan Motor Troubleshooting motor which operates from 450 to 850 rpm. The motor is a dc If the outdoor fan motor fails to start and run: permanent magnet- -type motor with the electronic controls Check the high- -voltage supply.
- Page 56 Pressure Switches Control Box Contactor And Capacitor The Puronr two- -stage air conditioner contains two pressure switches to prevent system operation if the pressures get Removal of the control box cover exposes the control components. excessively high or low. The air conditioner low pressure switch in Both air conditioner and heat pump control boxes will appear to be the suction line opens at 50 PSI and closes at 95 PSI.
- Page 57 A B C A B C A B C A B C UTILITY RELAY UTILITY SIGNAL OPEN RELAY Liquid Line Solenoid * SUPPLIED BY UTILITY PROVIDER A12260 A12261 Fig. 42 – 2- -Stage Control Board TROUBLESHOOTING Pressure Switch Protection Troubleshooting circuit board The outdoor unit is equipped with high and low- -pressure switches.
- Page 58 230v Brown- -Out Protection Defeated Low or High Contactor Open / No 230V at Compressor Contractor The brownout feature can be defeated if needed for severe noisy power conditions. This defeat should always be a last resort to 180B/187B/286B/289B solving the problem. Defeat is available on the User Interface If the compressor voltage is not sensed when the compressor setup screen (available with SYSTXBBUID01- -C UI) or can be should be starting, the appropriate contactor may be stuck open or...
- Page 59 Temperature Thermistors The thermistor comparison is not performed during low ambient cooling or defrost operation. Thermistors are electronic devices which sense temperature. As the Failed Thermistor Default Operation temperature increases, the resistance decreases. Thermistors are used to sense outdoor air (OAT) and coil temperature (OCT). Factory defaults have been provided in the event of failure of Refer to Fig.
- Page 60 Table 17—Two- -Stage Compressor Resistances (Winding Resistance at 70_F±20_) Winding Start (S- - C) 1.64 1.52 1.86 1.63 Run (R- - C) 1.30 0.88 0.52 0.39 Status Codes Table 18 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.
- Page 61 TWO STAGE NON- -COMMUNICATING 127A/ CA17 / BA17 / 226A / CH17 /BH17 Airflow Selection for Variable Speed Furnaces These units cost 2- -stage option that non- -communicating utilizing 2 stage scroll technology. These (non- -communicating) units require Performance Boost furnace, variable speed furnace or The variable speed furnaces provide blower operation to match the new model variable speed fan coil.
- Page 62 The compressor will always start unloaded and stay unloaded for five seconds even when the thermostat is calling for high stage (127A/ CA17 / BA17 / 226A / CH17 / BH17) capacity. NOTE: Defrost control board is equipped with 5 minute lockout Quiet Shift timer that is initiated upon any interruption of power.
- Page 63 Heating Check Chart Procedure If the defrost thermostat is closed, a complete defrost cycle is initiated. If the Quiet Shift switch is turned on, the compressor will To check system operation during heating cycle, refer to the be turned off for two 30 second intervals as explained previously. Heating Check Chart on outdoor unit.
- Page 64 CARE AND MAINTENANCE Cleaning Coil 1. Remove top cover. (See Remove Top Cover in Cabinet To assure high performance and minimize possible equipment section of this manual.) malfunction, it is essential that maintenance be performed 2. Remove coil grilles or louvers (as applicable) to gain full periodically on this equipment.
- Page 65 Electrical Controls and Wiring Final Check- -Out 1. Disconnect power to both outdoor and indoor units. After the unit has been operating, the following items should be checked. 2. Check all electrical connections for tightness. Tighten all screws on electrical connections. If any connections appear 1.
- Page 66 AIR CONDITIONER TROUBLESHOOTING CHART NO COOLING OR INSUFFICIENT COOLING COMPRESSOR COMPRESSOR RUNS BUT RUNS BUT COMPRESSOR CYCLES ON INSUFFICIENT WILL NOT RUN INTERNAL COOLING OVERLOAD OUTDOOR FAN HIGH SUCTION HIGH SUCTION CONTACTOR CONTACTOR STOPPED OR LOOSE LEAD LOW SUCTION LOW HEAD OPEN CLOSED CYCLING ON...
- Page 67 HEAT PUMP TROUBLESHOOTING HEATING CYCLE NO HEATING OR INSUFFICIENT HEATING COMPRESSOR COMPRESSOR RUNS BUT RUNS COMPRESSOR CYCLES ON INSUFFICIENT WILL NOT RUN INTERNAL HEATING OVERLOAD DIRTY FILTERS CONTACT CONTACTOR LOW SUCTION STRIP HEATERS OR INDOOR OPEN CLOSED LOW HEAD NOT OPERATING COIL INDOOR FAN DEFECTIVE LOW-...
- Page 68 HEAT PUMP TROUBLESHOOTING COOLING CYCLE NO COOLING OR INSUFFICIENT COOLING COMPRESSOR COMPRESSOR RUNS BUT RUNS BUT COMPRESSOR CYCLES ON INSUFFICIENT WILL NOT RUN INTERNAL COOLING OVERLOAD OUTDOOR FAN HIGH SUCTION HIGH SUCTION STOPPED OR CONTACTOR CONTACTOR LOOSE LEAD LOW SUCTION LOW HEAD OPEN CLOSED...
- Page 69 INDEX OF TABLES DESCRIPTION TABLE # Required Field- -Installed Accessories for Air Conditioners ............. . . Required Field- -Installed Accessories for Heat Pumps .
- Page 70 Catalog No. SM01---9 E 2017 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Edition Date: 09/17 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
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