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Bard EIFM-3C Installation Instructions Manual

Economizers with exhaust for use with bard 2-1/2 through 3 ton wall mount air conditioners and heat pumps produced in 2005 and later
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INSTALLATION INSTRUCTIONS

ECONOMIZERS WITH EXHAUST
For Use with Bard 2-1/2 through 3 Ton
Wall Mount Air Conditioners
Produced in 2005 and Later
© Copyright 2004
Models
EIFM-3C
and Heat Pumps
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
Manual :
2100-449A
Supersedes:
2100-449
File:
Volume III Tab 19
Date:
03-14-08
Manual
2100-449A
Page
1 of 13

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Summary of Contents for Bard EIFM-3C

  • Page 1: Installation Instructions

    INSTALLATION INSTRUCTIONS ECONOMIZERS WITH EXHAUST Models EIFM-3C For Use with Bard 2-1/2 through 3 Ton Wall Mount Air Conditioners and Heat Pumps Produced in 2005 and Later Manual : 2100-449A Bard Manufacturing Company, Inc. Supersedes: 2100-449 Bryan, Ohio 43506 File: Volume III Tab 19 Since 1914...Moving ahead, just as planned.

  • Page 2: Table Of Contents

    Wiring Diagram ............13 TABLES Table 1 EIFM ............3 Table 2 Enthalpy Control Setting ......9 Manufactured under U.S. Patent number 5,301,744. Other patents pending. COPYRIGHT DECEMBER 2004 BARD MANUFACTURING COMPANY, INC. BRYAN, OHIO USA 43506 Manual 2100-449A Page 2 of 13...

  • Page 3: General

    The EIFM-3C economizer is designed to be used with stage cooling thermostat in place of the normal single Bard 2-1/2 through 3 ton wall mount series air stage cooling thermostat. Also additional low voltage conditioners and heat pumps with low ambient fan wire will be required to transmit the second call (Y2) cycling controls.

  • Page 4: Installation

    1. Unpack the economizer assembly which includes 2. Remove and save the existing exterior blower the integral economizer with attached electrical access and service access panels on the Bard wall harness, mixed air thermistor, miscellaneous mount unit. (See Figure 1.) hardware and installation instructions.

  • Page 5: Figure 2

    3. RIGHT HAND UNITS Remove and save existing 4. Remove and discard the condenser partition blank unit return air filter and left side filter support off plate. (See Figure 2.) bracket. Remove and save top four (4) screws from grille. (See Figure 2.) LEFT HAND UNITS Remove and save the existing unit return air filter and right side filter bracket.

  • Page 6: Figure 3

    5. FOR RIGHT HAND UNITS Install economizer FOR LEFT HAND UNITS Install economizer by inserting the economizer into the unit to the far by inserting the economizer into the unit to the far left side clearing the right filter bracket. Once the right side clearing the left filter bracket.

  • Page 7: Figure 4

    7. Open unit control panel to gain access to unit low IMPORTANT: Position front lip of economizer under voltage terminal block. front grille and on top of condenser partition. (See Figure 3 inset.) This is important to ensure proper 8. FOR LEFT HAND UNITS Reroute economizer drainage of any water entering damper assembly.

  • Page 8: Figure 5

    Manual 2100-449A Page 8 of 13...

  • Page 9: Table 2 Enthalpy Control Setting

    9. Connect lead with fork terminal to corresponding Mark correct setting on dial of points on terminal strip. Re.: C.Y.G. (See wiring minimum position potentiometer diagram.) for future reference. 10. Wire nut leads with 5/8" stripped ends to Y1 and D.

  • Page 10: Economizers - Wa, Wl & Wh Series

    ECONOMIZER SEQUENCE OF OPERATION ECONOMIZER – WA, WL & WH SERIES CONDITION A – COOL OUTDOORS FEATURES First stage cooling closes and powers the economizer • One piece construction – easy to install with no dampers to economizer mode and the indoor blower mechanical linkage adjustment required.

  • Page 11: Figure 7

    CONDITION B – WARM OUTDOORS First stage cooling cycles and compressor and dampers remain in mechanical cooling mode. FIGURE 7 MECHANICAL COOLING OPERATION Manual 2100-449A Page 11 of 13...

  • Page 12: Wall Thermostats

    FIGURE 8 ECONOMIZER OPERATION FOR SINGLE COMPRESSOR UNIT WALL THERMOSTATS FOR AIR CONDITIONING WITH ECONOMIZER FOR HEAT PUMPS WITH ECONOMIZER Thermostat Part 8403-060 or 8403-058. Thermostat Part 8403-060 Programmable or Non- 8403-058 Configurable Multi-Stage Heat/Cool or Heat Programmable Multi-Stage Heat/Cool & Heat Pump Pump Thermostat.

  • Page 13: Wiring Diagram

    Manual 2100-449A Page 13 of 13...

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