Bard ECON-NC5 User Manual Download

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INSTALLATION INSTRUCTIONS

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com

Manual: 2100-708A
Supersedes: 2100-708
Date: 9-16-19

Full Flow Economizer

with Exhaust for Building Applications

(To Be Used with Field-Installed DDC Controls)

Model: ECON-NC5

For Use with Bard Single Stage Wall Mount

Air Conditioner and Heat Pump Models:

W42AC, W48AC, W60AC, W72AC

W42HC, W48HC, W60HC

Summary of Contents for ECON-NC5

Page 1: ...ac com Manual 2100 708A Supersedes 2100 708 Date 9 16 19 Full Flow Economizer with Exhaust for Building Applications To Be Used with Field Installed DDC Controls Model ECON NC5 For Use with Bard Singl...

Page 2: ...l Economizer 7 Figure 14 Control Plug Centered in Plug Access Opening 7 Figure 15 Connect Economizer Power Plug to Control Panel Plug 7 Figure 16 Release the Exhaust Blade 8 Figure 17 Exhaust Blade an...

Page 3: ...s 1 2100 708 installation instructions Economizer Features One piece construction Exhaust air damper built in with positive closed position Provides exhaust air capability to prevent pressurization of...

Page 4: ...shock hazard Disconnect remote electrical power supply or supplies before servicing Failure to do so could result in electric shock or death WARNING Cut hazard Wear gloves to avoid contact with sharp...

Page 5: ...hrough side intake openings and discard see Figure 5 Blank Off Plate FIGURE 4 Remove Blank Off Plates Both Sides FIGURE 5 Remove Exhaust Blank Off Plate Remove both air filters and the low voltage inn...

Page 6: ...ing and into the wire channel see Figure 11 Plug the wires into the 3000 1627 wire harness that plugs into the 12 pin low voltage connector Route the sensor wires over the top of the outdoor fan motor...

Page 7: ...n page 5 and slide in until flush with the side of the wall mount Economizer can be installed from either side FIGURE 13 Install Economizer When the economizer is fully installed the control plug shou...

Page 8: ...lade FIGURE 17 Exhaust Blade and Latch Bend the two 2 sheet metal tabs in the condenser partition up to hold the bottom of the mist eliminator in place Install 7003 084 mist filters on both sides see...

Page 9: ...y air duct static pressure drop 3 Indoor blower motor speed 4 Damper blade open position setting Refer to the appropriate graph on pages 14 and 15 to determine the blade setting Bend the two 2 sheet m...

Page 10: ...uring scheduled occupied periods Must be configured for multi stage for Y1 output to be active 1st stage cooling For dehumidification must be configured for No Economizer for YO D to be active for hum...

Page 11: ...tat if optional CO2 controller is used control optional for ECON only see vent instruction manuals 0 10 VDC modulating C02 control signal for modulating ventilation 6 8 7 Do not add these wires if set...

Page 12: ...l for modulating ventilation control Optional for ECON Only See vent installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while blower is energized...

Page 13: ...tional for ECON Only See vent installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire chang...

Page 14: ...Manual 2100 708A Page 14 of 17 GRAPH 1 W42AC ECON E WD Ventilation Delivery GRAPH 2 W48AC ECON E WD Ventilation Delivery...

Page 15: ...Manual 2100 708A Page 15 of 17 GRAPH 3 W60AC ECON E WD Ventilation Delivery GRAPH 4 W72AC ECON E WD Ventilation Delivery...

Page 16: ...Manual 2100 708A Page 16 of 17 FIGURE 26 Call for Compressor or Fan Only with Ventilation Off FIGURE 25 Call for Ventilation With or Without Compressor Operation...

Page 17: ...E 0 10V DC INPUT SIGNAL RED WHITE 10K OHM BLACK THERMISTOR 10K OD SENSOR ORANGE 12 PIN 10K OHM THERMISTOR RED VENT PLUG 24V INPUT SIGNAL NO CONTROL ECONOMIZER WIRING DIAGRAM OD TEMP PURPLE 10K OD BROW...