Bard W24A to W70A, W24L to W70L User Manual

THE WALL-MOUNT™ AIR CONDITIONERS (50HZ)

Models W24A to W70A and W24L to W70L			GREEN REFRIGERANT
21,200 Btuh (6.21 KW) – 59,000 Btuh (17.28 KW)
Right Side Control Panel	50Hz		R-410A

The Bard Wall-Mount Air Conditioner is a self contained energy efficient system, which is designed to offer maximum indoor comfort at a minimal cost without using valuable indoor floor space or outside ground space. This unit is the ideal product for versatile applications such as: new construction, modular offices, school modernization, telecommunication structures, portable structures or correctional facilities. Factory or field installed accessories are available to meet specific job requirements.

Engineered Features

Aluminum Finned Copper Coils:

Grooved tubing and enhanced louvered fin for maximum heat transfer and energy efficiency.

Twin Blowers:

Move air quietly. Most models feature multispeed blower motors providing airflow adjustment for high and low static operation. Motor overload protection is standard on all models.

Air Conditioner Compressor:

Scroll Compressors eliminate need for crankcase heater. Standard on all models.

R-410A Refrigerant:

Designed with R-410A (HFC) nonozone depleting refrigerant in compliance with the Montreal protocol and 2010 EPA requirements.

Phase Rotation Monitor:

Standard on all 3 phase scroll compressors. Protects against reverse rotation if power supply is not properly connected.

Galvanized 20 Gauge Zinc Coated Steel Cabinet:

Cleaned, rinsed, sealed and dried before the polyurethane primer is applied. The cabinet is handsomely finished with a baked on textured enamel, which allows it to withstand 1000 hours of salt spray tests per ASTM B117-03.

Foil Faced Insulation:

Standard on all units.

Full Length Mounting Brackets:

Built into cabinet for improved appearance and easy installation. NOTE: Bottom mounting bracket included to assist in installation.

Electrical Components:

Are easily accessible for routine inspection and maintenance through a right side, service panel opening. Features a lockable, hinged access cover to the circuit breaker or toggle disconnect switch.

Electric Heat Strips:

Features an automatic limit and thermal cut-off safety control. Heater packages can be factory or field installed for all 1½ through 6 ton models.

Filter Service Door:

Separate service door provides easy access for filter change.

One Inch, Disposable Air Filters:

Are standard equipment. Optional one inch washable filters available and filter racks permit the addition of 2" pleated filter. Factory or field installed.

Condenser Fan and Motor

Shroud Assembly:

Slides out for easy access.

Barometric Fresh Air Damper:

Standard on all units. Allows up to 25% outside fresh air. Optional ventilation packages available.

Built-in Circuit Breakers:

Standard on all electric heat versions of single (230/208 volt) and three phase (230/208 volt) equipment. Toggle disconnects are standard on all electric heat versions of three phase (460 volt) equipment.

Slope Top:

Standard feature for water run-off.

Top Rain Flashing:

Standard feature on all models.

Liquid Line Filter Drier:

Standard on all units. Protects system against moisture.

Compressor Control Module:

Standard on all units. Built-in off-delay timer adjustable from 30 seconds to 5 minutes. 2-minute on-delay if power interrupt. 120-second bypass for low pressure control, and both soft and manual lockouts for high and low pressure controls. Alarm output for alarm relay.

High & Low Pressure Switches are Auto-Reset:

Standard on all units. Built-in lockout circuit resets from the room thermostat. Provides commercial quality protection to the compressor.

Form No.	S3408-1011
Supersedes	S3408-710
Page	1 of 8

Capacity and Efficiency Ratings

	MODELS	W24A1	W30A1	W36A1	W42A1	W48A1	W60A1	W70A1
		W24L1		W36L1	W42L1	W48L1	W60L1	W70L1
	Cooling Capacity Btuh	21,200	26,000	31,200	36,000	41,500	48,500	59,000
	Cooling Capacity KW	6.21	7.62	9.14	10.54	12.15	14.20	17.28
	EER	9.0	9.0	9.0	9.2	9.0	9.0	9.5

All capacity, efficiency and cost of operation information is based on high speed operation with fresh air cover plate. Cover plate must be ordered separately and is recommended for use to obtain maximum energy efficiency where fresh air is not required.

Specifications 21,200 Btuh (6.21 KW) — 31,200 Btuh (9.14 KW)

	MODELS	W24A1-D	W24A1-F	W30A1-D	W30A1-F	W36A1-D	W36A1-E	W36A1-F
			W24L1-F					W36L1-F
	Electrical Rating-50 Hz	240/220 - 1	415/380 - 31	240/220 - 1	415/380 - 31	240/220 - 1	220/200 - 3	415/380 - 31
	Operating Voltage Range	198-254	342-456	198-254	342-456	198-254	180-242	342-456
	Compressor--Circuit A
	Voltage	240/220	415/380	240/220	415/380	240/220	220/200	415/380
	Rated Load Amps	9.4/10.6	4.8/5.0	12.9/14.7	4.8/4.8	15.1/15.8	11.8/13.1	5.8/6.0
	Branch Circuit Selection Current	10.9	5.2	14.7	4.8	16.0	13.3	6.0
	Lock Rotor Amps	60/60	28/28	67/67	30/30	87/87	95/95	44/44
	Compressor Type	Scroll	Scroll	Scroll	Scroll	Scroll	Scroll	Scroll
	Fan Motor & Condenser
	Fan Motor--HP--RPM	1/5 - 950	1/5 - 950	1/5 - 950	1/5 - 950	1/5 - 950	1/5 - 950	1/5 - 950
	Fan Motor--Amps	1.0	1.0	1.5	1.5	1.5	1.5	1.5
	Fan--DIA m3/s	458/0.66	458/0.66	508/0.86	508/0.86	508/0.86	508/0.86	508/0.86
	Blower Motor & Evaporator

Blower Motor--HP-RPM-SPD

Blower Motor--Amps

m3/s Cooling & E.S.P. (pa)

w/Filter (Rated-Wet Coil)

Filter Sizes (mm) STD.

Shipping Weight -- Lbs. (Kg)

1/5-950-1	1/5-950-1	1/3-950-2	1/3-950-2	1/3-950-2	1/3-950-2	1/3-950-2
1.2	1.2	2.2	2.2	2.2	2.2	2.2
0.32/55	0.32/55	0.45/55	0.45/55	0.47/50	0.47/50	0.47/50
405x635x25	405x635x25	405x765x25	405x765x25	405x765x25	405x765x25	405x765x25
335 (152)	335 (152)	375 (170)	375 (170)	375 (170)	375 (170)	375 (170)

Specifications 36,000 Btuh (10.54 KW) — 59,000 Btuh (17.28 KW)

	MODELS	W42A1-E	W42A1-F	W48A1-E	W48A1-F	W60A1-E	W60A1-F	W70A1-P
			W42L1-F		W48L1-F		W60L1-F	W70L1-P
	Electrical Rating--50 Hz	220/200-3	415/380-3 1	220/200-3	415/380-3 1	220/200-3	415/380-3 1	400/380-3 1
	Operating Voltage Range	180-242	342-456	180-242	342-456	180-242	342-456	342-440
	Compressor--Circuit A
	Voltage	220/200	415/380	220/200	415/380	220/200	415/380	400/380
	Rated Load Amps	11.0/12.5	5.8/5.8	13.9/15.2	7.1/7.1	13.5/15.2	7.4/7.6	12.2/14.1
	Branch Circuit Selection Current	13.2	6.0	15.2	7.1	15.7	7.8	14.1
	Lock Rotor Amps	83/83	44/44	98/98	48/48	110/110	52/52	75/75
	Compressor Type	Scroll	Scroll	Scroll	Scroll	Scroll	Scroll	Scroll
	Fan Motor & Condenser
	Fan Motor--HP-RPM	1/3-825	1/3-825	1/3-825	1/3-825	1/3-825	1/3-825	1/3-950
	Fan Motor--Amps	2.5	2.5	2.5	2.5	2.5	2.5	4.0
	Fan--DIA. m3/s	610/1.01	610/1.01	610/1.01	610/1.01	610/1.01	610/1.01	610/1.01
	Blower Motor & Evaporator
	Blower Motor--HP-RPM-SPD	1/2-950-2	1/2-950-2	1/2-950-2	1/2-950-2	1/2-950-2	1/2-950-2	1/2-950-2
	Blower Motor--Amps	3.3	3.3	3.3	3.3	3.3	3.3	3.3
	m3/s Cooling & E.S.P. (pa)	0.55/75	0.55/75	0.60/50	0.60/50	0.66/75	0.66/75	0.70/50
	w/Filter (Rated-Wet Coil)
	Filter Sizes (mm) STD.	508x765x25	508x765x25	508x765x25	508x765x25	508x765x25	508x765x25	508x765x25
	Shipping Weight -- Lbs. (Kg)	525 (238)	525 (238)	525 (238)	525 (238)	525 (238)	525 (238)	525 (238)

1 415/380-3 and 400/380-3 electrical ratings are 3-phase wye (star) systems requiring three (3) phase legs plus neutral and ground. NOTE: The indoor & outdoor motors, and 24V transformer primary are connected at 240V derived from one (1) phase leg to neutral.

This is internally connected and no field wiring required.

Form No.	S3408-1011
Supersedes	S3408-710
Page	2 of 8

Ventilation System Packages

Bard Wall-Mounts are designed to provide optional ventilation packages to meet all of your ventilation and indoor air quality requirements. Standard on all units is the barometric fresh air damper. All packages can be ordered built-in at the factory or can be easily field-installed at the time of installation of the Wall-Mount, or can be retrofitted at a later date.

BAROMETRIC FRESH AIR DAMPER - BFAD

STANDARD

The barometric fresh air damper is a standard feature on all models. It is installed on the inside of the service door and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the air inlet openings and to be mixed with the conditioned air. The damper opens during blower operation and closes when the blower is off. Adjustable blade stops allow different amounts of outside air to be introduced into the building and can be easily locked closed if required.

BAROMETRIC FRESH AIR DAMPER BLANK OFF PLATE - BOP OPTIONAL

A blank off plate is installed on the inside of the service door. It covers the air inlet openings, which restricts any outside air from entering the unit. The blank off plate should be utilized in applications where outside air is not required to be mixed with the conditioned air.

MOTORIZED FRESH AIR DAMPER

COMMERCIALROOMVENTILATOR

MOTORIZED FRESH AIR DAMPER - MFAD

OPTIONAL

The motorized fresh air damper is internally mounted behind the service door and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the air inlet openings and to be mixed with the conditioned air. The two position damper can be fully open or closed. The damper blade is powered open by a 24VAC motor with spring return on power loss. The damper can be controlled by indoor blower operation or can be field connected to be managed based on building occupancy.

NOTE: The above vent systems are intake only without built-in exhaust capability. Building will likely require separate field installed barometric relief or mechanical exhaust elsewhere within the conditioned space. Balancing dampers in the return air grille may be required to achieve specified amount of outdoor air intake.

COMMERCIAL ROOM VENTILATOR - CRV

OPTIONAL

The built-in commercial room ventilator is internally mounted behind the service door and allows outside ventilation air, up to 50% of the total airflow rating of the unit, to be introduced through the air inlet openings. It includes a built-in exhaust air damper.

The commercial room ventilator (CRV) is a simple and innovative approach to improving the indoor air quality by providing fresh air intake and exhaust capability through the CRV. The damper can be easily adjusted to control the amount of fresh air supplied into the building. The CRV can be controlled by indoor blower operation or field controlled based on room occupancy. The CRV is power open - spring return on power loss. Complies with ASHRAE Standard 62.1 “Ventilation for Acceptable Indoor Air Quality.”

ECONOMIZER - EIFM

OPTIONAL

The built-in economizer system is internally mounted behind the service door and allows outdoor air to be introduced through the air inlet openings. The amount of outdoor air varies in response to the system controls and settings defined by the end user. It includes a built-in exhaust air damper. The economizer is designed to provide “free cooling” when outside air conditions are cool and dry enough to satisfy cooling requirements without running the compressor. This in turn provides lower operating costs, while extending the life of the compressor.

	Standard Features:
ECONOMIZER

One Piece Construction - Easy to install with no mechanical linkage adjustment required.

Exhaust Air Damper - Built in with positive closed position. Provides exhaust air capability to prevent pressurization of tight buildings.

Actuator Motor - 24 volt, power open, spring return with built in torque limiting switch.Proportioning Type Control - for maximum “free cooling” economy and comfort.

Moisture Eliminator & Prefilter - permanent, washable aluminum construction.Enthalpy Control - adjustable to monitor outdoor temperature and humidity.

Minimum Position Potentiometer - adjustable to control minimum damper blade position for ventilation purposes.

Mixed Air Sensor - to monitor outside and return air to automatically modulate damper position.

Form No.	S3408-1011
Supersedes	S3408-710
Page	3 of 8