HEAT ANTICIPATION

Group A and Group B thermostats shown in Table 4 have a fixed heat anticipator for stage 1 with no adjustment required. Stage 2 has an adjustable anticipator for the W2 connection and fixed for the W3 connection. Both the W2 and W3 circuits are controlled by the stage 2 bulb. The only heat anticipator that needs to be checked is stage 2 and it should be set to match the load carried by the W2 circuit. The normal factory wiring provides for only one electric heat contactor to be controlled by W2, and the anticipator should be set at .40A. If special field wiring is done, it is best to actually measure the load but a good rule is .40A for each heat contactor controlled by W2.

THERMOSTAT INDICATOR LAMPS

The green lamp marked “Check” will come on if there is any problem that prevents the compressor from running when it is supposed to be.

COMPRESSOR MALFUNCTION LIGHT

Actuation of the green “Check” lamp is accomplished by a relay output from the heat pump control board which is factory installed. Any condition such as loss of charge, high head pressure, etc., that will prevent compressor from operating will cause green lamp to activate. This is a signal to the operator of the equipment to place system in emergency heat position.

TABLE 4

WALL THERMOSTAT AND SUBBASE COMBINATIONS

Thermostat

Subbase

Predominant Features

 

 

 

8403-045

- - -

1 stg. cool; 2 stg. heat; Mercury bulb

(T841A1761)

Manual changeover

 

8403-017

8404-009

2 stg. cool; 2 stg. heat; Mercury bulb

(T874R1129)

(Q674L1181)

Manual changeover

8403-018

8404-010

2 stg. cool; 2 stg. heat; Mercury bulb

(T874N1024)

(Q674F1261)

Auto or Manual changeover

8403-042

 

1 stg. cool; 2 stg. heat

- - -

Electronic Non-Programmable

(T8511G1070)

 

Auto or Manual changeover

 

 

 

 

 

8403-049

 

2 stg. cool; 3 stg. heat

- - -

Programmable Electronic

(1F93-380)

 

Auto or Manual changeover

 

 

 

 

 

IMPORTANT NOTE: The thermostat and subbase combinations shown above incorporate the following features: Man-Auto fan switch, Off-Heat-Cool-Em. Heat Switch, and two (2) indicator lamps; one for emergency heat and one for compressor malfunction.

Manual 2100-373

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Bard WH242, WH183 installation instructions Heat Anticipation, Thermostat Indicator Lamps, Compressor Malfunction Light
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WH183, WH242 specifications

The Bard WH242 and WH183 are innovative heating and cooling systems designed to meet the demands of various residential and commercial applications. These units are recognized for their efficiency, reliability, and advanced technologies, making them popular choices among property owners and HVAC professionals.

The Bard WH242 is a high-capacity unit that delivers optimal temperature control, making it ideal for larger spaces. It boasts a robust design and a powerful compressor, which work together to provide consistent heating and cooling throughout the year. The unit features a multi-speed blower, helping to distribute air evenly while also enhancing comfort levels. Energy efficiency is a key highlight, as the WH242 complies with Energy Star standards, which means it consumes less energy while offering high performance.

On the other hand, the Bard WH183 is designed for smaller spaces without compromising on comfort or efficiency. It incorporates a compact design, making it easier to install in tight spaces. Despite its size, the WH183 is equipped with advanced technologies that ensure reliable operation. Like the WH242, this unit also features a multi-speed blower, which aids in maintaining a steady and comfortable indoor climate.

Both models utilize high-quality insulation and advanced refrigerant management systems that minimize energy loss. The systems are also equipped with advanced diagnostics, allowing for easier maintenance and troubleshooting. This means that HVAC technicians can quickly identify potential issues, ensuring that the units remain operational with minimal downtime.

Overall, the Bard WH242 and WH183 represent cutting-edge solutions for temperature management. Their design emphasizes durability, efficiency, and user-friendliness, appealing to a wide range of customers. With their combination of power, compactness, and advanced features, these units are well-suited for diverse applications, including schools, offices, and residential homes. Whether for heating in the winter or cooling in the summer, Bard's commitment to quality and innovation is evident in both the WH242 and WH183 models, making them a smart choice for efficient climate control.
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