The electrical data lists fuse and wire sizes (75ºC 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.

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:

TABLE 4

OPERATING VOLTAGE RANGE

TAP

RANGE

 

 

 

 

240V

253

-

216

 

 

 

 

208V

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.)

Five (5) wires should be run from thermostat subbase to the 24V terminal board in the unit. A five conductor, 18 gauge copper, color-coded thermostat cable is recommended. The connection points are shown in Figure 10.

TABLE 5

THERMOSTAT WIRE SIZE

 

 

 

Maximum

Transformer

 

Wire

Distance

VA

FLA

Gauge

In Feet

 

 

20 gauge

45

 

 

18 gauge

60

55

2.3

16 gauge

100

 

 

14 gauge

160

 

 

12 gauge

250

TABLE 6

WALL THERMOSTAT AND SUBBASE COMBINATIONS

Thermostat

Subbase

Predominate Features

 

 

 

8403-002

8404-003

1 stage heat, 1 stage cool

T87F3111

Q539A1220

System: heat-off-cool

Fan: auto-on

8403-041

---

1 stage heat, 1 stage cool

T8034C

 

System: heat-off-cool

Fan: auto-on

8403-019

8404-012

1 stage cool, 2 stage heat

T874C1760

Q674A1001

System: heat-auto-cool

Fan: auto-on

 

 

 

8403-021

8404-012

2 stage cool, 2 stage heat

T874D1934

Q674A1001

System: heat-auto-cool

Fan: auto-on

 

 

 

8403-049

---

2 stage cool, 2 stage heat

1F93-380

 

Electronic 7 day programming

 

 

 

8403-043

---

1 stage heat, 1 stage cool

CM-200

System: heat-off-cool

Fan: auto-on

 

Manual 2100-192 Page 8

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Bard WA361, WA301 installation instructions Wiring LOW Voltage Wiring, Operating Voltage Range, Thermostat Wire Size

WA301, WA361 specifications

The Bard WA361 and WA301 are two advanced wall-mounted air conditioning systems designed for commercial and residential use. These units are engineered to provide efficient cooling and heating while optimizing energy consumption.

One of the standout features of the Bard WA361 and WA301 models is their compact design. This allows for easy installation in various spaces where traditional floor-mounted units may not fit. Ideal for areas such as classrooms, offices, or small retail locations, these units can be mounted high on the wall, freeing up valuable floor space.

Both models leverage Bard’s advanced heat pump technology. This technology allows for reverse-cycle functionality, meaning they can provide both cooling in summer and heating in winter. The WA361 model offers a heating capacity of up to 36,000 BTUs while the WA301 provides a slightly lower capacity of 30,000 BTUs, making them suitable for different size requirements.

Energy efficiency is prioritized in these models. They come equipped with high Seasonal Energy Efficiency Ratings (SEER), which ensures lower electric bills and reduced environmental impact. Additionally, the units have been designed to operate quietly, maximizing comfort without the disruptive noise often associated with HVAC systems.

Another notable characteristic is the advanced control system. The Bard WA361 and WA301 feature programmable thermostats that allow users to set specific comfort levels according to their schedules. This not only enhances user control but also boosts energy-saving potential.

Moreover, both models are built with durable materials to ensure longevity and reliability. Their internal components are engineered to withstand harsh conditions, making them a preferred choice for various settings, including industrial environments.

Bard emphasizes ease of maintenance in the design of these units. The filters are easily accessible and can be replaced or cleaned with minimal effort. This feature significantly extends the lifespan of the unit and ensures that it operates at peak performance.

In summary, the Bard WA361 and WA301 air conditioning units represent a blend of innovative technology and practical design. Their energy-efficient operation, compact installation capability, and advanced heating and cooling functions make them exemplary solutions for those seeking reliable comfort control in diverse applications. Whether for small businesses or residential spaces, these units aim to deliver exceptional performance with a focus on sustainability and efficiency.