HIGH AND/OR LOW PRESSURE

 

 

AND/OR DISCHARGE TEMPERATURE

 

 

SWITCH (IF USED)

 

24-VOLT WIRING

 

DTS

 

 

 

 

 

 

 

HPS

LPS

 

 

 

 

C

BRN

C

 

 

 

 

BLU

BLU YEL

 

YEL

Y

LLL

C

 

BLK

 

ORN

YEL RED

 

 

THERMOSTAT INDOOR OUTDOOR

SUBBASE UNIT UNIT

TERMINAL TERMINAL

BOARD BOARD

1

2

3

X

 

SERVICE ALARM

 

PASS SUPPLY WIRE THROUGH

 

 

 

METALLIC LOOP TWICE ON

 

 

 

UNITS WITH NAMEPLATE

 

 

 

RLA OF 14 AMPS OR LESS.

 

 

 

*METALLIC

 

ONE FIELD

LOOP

 

LINE VOLTAGE

 

 

SUPPLY WIRE

A88340

Fig. 25—Service Alarm Wiring Connections

FIELD LINE VOLTAGE SUPPLY WIRE

YEL

Y

LL L

C

C

C

THERMOSTAT INDOOR OUTDOOR

SUBBASE UNIT UNIT TERMINAL TERMINAL

BOARD BOARD

CYCLE PROTECTOR

SERVICE ALARM

 

 

 

T1 T2 T3

X 3 2 1

HIGH AND/OR LOW PRESSURE

 

 

AND/OR DISCHARGE TEMPERATURE

VIO BLK

 

SWITCH (IF USED)

ORN

 

 

 

 

 

 

 

DTS

C

 

YEL

YEL

BLU

BLK

BLU

 

LPS

 

HPS

 

 

 

BLK

BRN

BRN

A88339

COMMON POTENTIAL

FACTORY WIRING (FIELD CONNECTED)

FIELD-SUPPLIED WIRING

C CONTACTOR

A88339

Fig. 26—Wiring Connections for Service Alarm and Cycle Protector

heat-pump output drops. Setting at which thermostat closes is variable, depending on design of system. It is set at time of installation and should not be changed without cause. Up to 2 outdoor thermostats may be installed. Some systems may not have any thermostat. An outdoor thermostat can also be used to lock out compressor operation at low ambients in condensing unit not equipped with low-ambient control.

Although these devices are installed in control circuit (24v), turn off all power to unit before attempting to troubleshoot thermostat.

Use a standard ohmmeter to check for continuity through thermo- stat. If you suspect thermostat is out of calibration, use calibrated electronic thermometer to determine correct outdoor temperature. Turn thermostat dial knob until switch closes. Observe this using ohmmeter across switch. Read temperature setting when switch closes. It should be close to reading observed using electronic thermometer. Any setting within ± 5 °F is acceptable.

—24—

XIII. COMPRESSOR PLUG

The compressor electrical plug provides a quick-tight connection to the compressor terminals. The plug completely covers the compressor terminals, and the mating female terminals are com- pletely encapsulated in the plug. Therefore, the terminals are isolated from any moisture so corrosion and resultant pitted or discolored terminals are reduced. The plug is oriented to the relief slot in the terminal box so the cover cannot be secured if wires are not positioned in slot, assuring correct electrical connection at the compressor. The plug can be removed by simultaneously pulling while ″ rocking″ the plug. However, these plugs are specialized and vary in terminal orientation in the plug. Therefore, plugs can be used on only the specific compressor or group as shown in Fig. 27.

For the Carlyle and Bristol compressors in Fig. 27, the triangle formed by the fusite terminals points down, and the plug is likewise oriented. The fusite terminals and plug-terminal orienta-

Page 23 Page 25
Page 24
Image 24
Bryant R-22 service manual Service Alarm Wiring Connections, XIII. Compressor Plug
Page 23 Page 25

R-22 specifications

The Bryant R-22 stands out in the landscape of residential heating and cooling systems with its combination of efficiency, durability, and modern technology. Designed primarily for homeowners seeking comfortable climate control solutions, the R-22 model delivers consistent performance throughout varying seasonal extremes.

One of the main features of the Bryant R-22 is its high energy efficiency. Rated with a SEER (Seasonal Energy Efficiency Ratio) that meets or exceeds industry standards, this air conditioning unit is designed to reduce energy consumption while providing optimal cooling. This not only helps in lowering monthly utility bills but also promotes environmentally responsible usage.

Another notable characteristic is the unit's durability. Constructed with a robust cabinet and high-quality components, the R-22 is built to withstand the rigors of daily use, with protective features that enhance its longevity. The cabinet comes with a powder-coated finish that resists corrosion and harsh weather conditions, ensuring that the unit stays functional and aesthetically pleasing for years.

The Bryant R-22 also incorporates advanced technology to improve user experience. One such innovation is the SmartSet technology, which allows homeowners to program their unit to optimize comfort levels according to their specific needs. This programmable capability enhances energy savings and ensures that the home remains at the desired temperature when residents are present.

Moreover, the unit features a Quiet Operating System that significantly reduces noise levels, making it suitable for residential areas where noise might be a concern. The design minimizes vibrations and optimizes airflow, creating a comfortable environment without disruptive sounds.

For added convenience, the Bryant R-22 is compatible with various thermostat options, including Wi-Fi-enabled models. This allows users to control their home's climate from anywhere using a smartphone app, facilitating effortless adjustments and monitoring of energy usage.

Finally, the Bryant R-22 is backed by a solid warranty, providing peace of mind for homeowners. This commitment to quality and customer satisfaction is a testament to Bryant’s dedication to producing reliable and efficient HVAC solutions. Overall, the Bryant R-22 is an exemplary choice for those looking to enhance their home comfort with the latest in HVAC technology.
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