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Bard EIFM-2B Installation Instructions Manual

Economizers with exhaust
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INSTALLATION
ECONOMIZERS WITH EXHAUST
For Use with Bard 1-1/2 thru 3 Ton
Wall Mount Air Conditioners
INSTRUCTIONS
MODELS
EIFM-2B
EIFM-3B
and Heat Pumps
Bard Manufacturing Company
Bryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
Manual :
2100-390
Supersedes:
File:
Volume III Tab 19
Date:
04-26-01
© Copyright 2001

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Summary of Contents for Bard EIFM-2B

  • Page 1: Installation Instructions

    INSTALLATION INSTRUCTIONS ECONOMIZERS WITH EXHAUST MODELS EIFM-2B EIFM-3B For Use with Bard 1-1/2 thru 3 Ton Wall Mount Air Conditioners and Heat Pumps Bard Manufacturing Company Manual : 2100-390 Supersedes: Bryan, Ohio 43506 File: Volume III Tab 19 Since 1914...Moving ahead, just as planned.

  • Page 2: Table Of Contents

    Economizers – WA, WH & WL Series ....8 Figure 7 ..............9 Figure 8 .............. 10 TABLES Table 1 ..............1 Table 2 ..............7 Manufactured under U.S. patent number 5,301,744. Other patents pending. COPYRIGHT APRIL 2001 BARD MANUFACTURING COMPANY BRYAN, OHIO USA 43506...

  • Page 3: General

    The EIFM-2 and EIFM-3 economizers are designed to The economizer should only be installed by a trained be used with Bard 1-1/2 thru 3 ton wall mount series air heating and air conditioning technician. These conditioners and heat pumps with low ambient fan instructions serve as a guide to the technician installing cycling controls.

  • Page 4: Installation

    1. Unpack the economizer assembly which includes 2. Remove and save the existing exterior blower access the integral economizer with attached electrical and service access panels on the Bard wall mount harness, mixed air thermistor, miscellaneous unit. (See Figure 1.) hardware and installation instructions.
  • Page 5 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...

  • Page 6: Manual 2100-390

    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 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 Manual 2100-390 Page 6...
  • Page 9 9. Connect lead with fork terminal to corresponding D. Adjust the enthalpy control to position A, B, C, points on terminal strip. Re.: C.Y.G. (See wiring or D to achieve the maximum combination of diagram.) temperature and humidity acceptable for the installation as per Table 2 below.

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

    ECONOMIZER – WA, WL & WH SERIES ECONOMIZER SEQUENCE OF OPERATION 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 CONDITION B – WARM OUTDOORS First stage cooling cycles and compressor and dampers remain in mechanical cooling mode. FIGURE 7 MECHANICAL COOLING OPERATION MIS-348 Manual 2100-390 Page...
  • Page 12 FIGURE 8 ECONOMIZER OPERATION FOR SINGLE COMPRESSOR UNIT MIS-1351 WALL THERMOSTATS FOR AIR CONDITIONING WITH ECONOMIZER FOR HEAT PUMPS WITH ECONOMIZER Thermostat Part No. 8403-021 (Honeywell T874D1934) Thermostat Part 8403-027 (White Rodgers IF92-71) Subbase part no. 8404-012 (Honeywell Q674A1001) Electronic Heat Pump Thermostat 2 Stage Cool / 2 Stage Heat 2 Stage Cool / 3 Stage Heat Manual 2100-390...
  • Page 13 Manual 2100-390 Page...

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Eifm-3b

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