WIRING – MAIN POWER

Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only”. These instructions must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. All wiring must conform to NEC and all local codes.

The electrical data lists fuse and wire sizes (75° C copper) for all models including the most commonly used heater sizes. Also shown are the number of field power circuits required for the various models with heaters.

The unit rating plate lists a “Maximum Time Delay Relay Fuse” or “HACR” type circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor.

The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect. To convert for the locking capability, bend the tab located in the bottom left-hand corner of the disconnect opening under the disconnect access panel straight out. This tab will now line up with the slot in the door. When shut, a padlock may be placed through the hole in the tab preventing entry.

See “Start Up” section for important information on three phase scroll compressor start ups.

See Table 5 for Electrical Specifications.

WIRING – LOW VOLTAGE WIRING

230/208V, 1 phase and 3 phase equipment dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are:

TAP

RANGE

240

253 – 216

208

220 – 187

NOTE: The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition).

For wiring size and connections, refer to Wiring Manual 2100-507.

Manual

2100-511

Page

14 of 27

Page 13 Page 15
Page 14
Image 14
Bard W24H1, W18H1, W48H1, W36H1, W42H1, W60H1, W30H1 Wiring Main Power, Wiring LOW Voltage Wiring, TAP Range
Page 13 Page 15

W60H1, W18H1, W48H1, W30H1, W42H1 specifications

The Bard W24H1D, W24H1, W30H1D, W36H1, and W48H1D are advanced wall-mounted heating and cooling units that exemplify efficiency, performance, and adaptability. These models are particularly suited for residential and light commercial applications, providing excellent temperature control in a variety of settings.

One of the distinguishing features of these Bard units is their robust heat pump technology, which offers both heating and cooling capabilities. This dual-functionality enables users to regulate indoor climates effectively throughout different seasons. Bard's heat pumps are designed for high efficiency, helping to reduce energy consumption and lower utility bills while maintaining comfort.

The W24H1D and W24H1 models are suited for spaces requiring moderate heating and cooling, with their compact design allowing for easy installation in tight spaces. They provide a heating capacity of 24,000 BTU and are capable of delivering exceptional performance even in colder climates. The W30H1D, on the other hand, elevates this performance with a slightly higher output of 30,000 BTU, making it ideal for larger areas or environments with intensified temperature control needs.

For larger applications, the W36H1 and W48H1D models stand out with their impressive heating capacities of 36,000 BTU and 48,000 BTU, respectively. These units are engineered to tackle larger installations with ease, ensuring warmth during harsh winters and refreshing cool air in sweltering summers. The robust construction of these models also contributes to their durability and longevity, making them a cost-effective investment over time.

In addition to their heating and cooling capabilities, these Bard models come equipped with user-friendly interfaces, allowing for easy temperature adjustments. Many units include programmable thermostats that can be customized for different times of the day, enhancing convenience and energy management.

A standout characteristic of the Bard line is their quiet operation. Utilizing sound-dampening technology, these units are designed to minimize noise levels, making them suitable for residential settings where peace and tranquility are essential.

Moreover, Bard’s commitment to efficiency is evident in the design of these units. They adhere to strict energy efficiency guidelines, including the Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER) ratings. This attention to energy efficiency not only benefits the environment but also assures users of lower operational costs.

In summary, the Bard W24H1D, W24H1, W30H1D, W36H1, and W48H1D models provide versatile, efficient heating and cooling solutions suitable for various applications. With their advanced technologies and user-friendly features, these units stand out in the HVAC market, offering reliability and comfort year-round.
Top Page Image Contents