Bard WG4S1, WG5S1, WG3S1 Indoor Blower Performance, Ventilation System Packages, Model, Esp, Btu

Indoor Blower Performance 1

			2	3	4		Heating CFM 5 6
	Rated	Max		Rated	Rated
MODEL						50,000	75,000	100,000	125,000
	ESP	ESP	Continuous	1st Stage	2nd Stage
						BTU	BTU	BTU	BTU
			CFM	Cooling CFM	Cooling CFM
						Input	Input	Input	Input
WG3S1	0.15	0.50	800	800	1100	960	1100	1365	1440
WG4S1	0.20	0.50	825	1100	1400	960	1100	1365	1440
WG5S1	0.20	0.50	850	1300	1600	960	1100	1365	1440

1 Motor will deliver consistent CFM through voltage supply range with no deterioration (197-253V for 230/208V models, 414-506V for 460V models). 2 Continuous CFM is the total air being circulated during continuous (manual) fan mode.

3 Will occur automatically with a call for “Y1” signal from thermostat.

4 Will occur automatically with a call for “Y2” signal from thermostat.

5 Will occur automatically with a call for “W” signal from thermostat.

6 Constant CFM of Variable Speed Motor should maintain mid-rise temperature differential through range of allowable static.

Ventilation System Packages

Bard Wall-Mounts are designed to provide optional ventilation packages to meet all of your ventilation and indoor air quality requirements. All units are equipped with a barometric fresh air damper as the standard ventilation package. All ventilation packages can be built-in at the factory, or field-installed at a later date.

BLANK OFF PLATE - WGSBOP STANDARD

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.

COMMERCIAL ROOM VENTILATOR

ECONOMIZER

COMMERCIAL ROOM VENTILATOR - WGSCRVMP-5 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 with integral bug screen. Automatic control is integrated to maintain desired ventilation air at the various supply airflows while on Stage 1, Stage 2 or ventilation modes of operation.

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 ANSI/ASHRAE Standard 62.1 “Ventilation for Acceptable Indoor Air Quality”.

CO2 Sensor Ready: • WGSCRVMP-5 is designed for CO2 based on ventilation control by simply wiring in a field installed CO2 sensor if desired.

ECONOMIZER - WGSEIFM-5 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:

•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.

WALL-MOUNT ENERGY RECOVERY VENTILATOR - WGSERV-5 OPTIONAL

The wall-mount energy recovery ventilator (WGSERV-5) is a highly innovative approach to address indoor air quality ventilation requirements as established by ANSI/ASHRAE Standard 62.1. The WGSERV-5 allows up to 450 CFM (depending upon speed setting) of fresh air and exhaust through the unit while maintaining superior indoor comfort and humidity levels. In most cases this can be accomplished without increasing equipment sizing or operating costs. Heat transfer efficiency is up to 74% during summer and 80% during winter conditions.

The WGSERV-5 consists of a unique “rotary energy recovery cassette” that provides effective sensible and latent heat transfer capabilities during summer and winter conditions. Various control schemes are addressed including limiting ventilation during building occupancy only.

ENERGY RECOVERY VENTILATOR	The WGSERV-5 is designed to be internally mounted behind the service door in the WGS Gas/Electric units. It can be built-
	in at the factory or field installed as an option. WGSERV-5 can be independently adjusted for intake and exhaust rates.
	Manufactured under U.S. Patent Nos. 5,301,744; 5,485,878

NOTE: See Page 4 for WGSCRV Performance Data &

Page 5 & 6 for WGSERV Performance Data

Form No.	S3396-1112
Supersedes	S3396-212
Page	3 of 12