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Bard EIFM-2B manual

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Table of contents for the manual

  • Page 1

    INST ALLA TION INSTRUCTIONS ECONOMIZERS WITH EXHAUST MODELS EIFM-2B EIFM-3B For Use with Bard 1-1/2 thru 3 T on W all Mount Air Conditioners and Heat Pump s Manual : 2100-390 Supersedes: File: V olume III T ab 19 Date: 04-26-01 Bard Manufacturing Company Bryan, Ohio 43506 Since 1914...Moving ahead, just as planned. © Copyright 2001[...]

  • Page 2

    CONTENTS GENERAL General Information ................................................. 1 Unp acking ................................................................ 1 Description ............................................................... 1 INST ALLA TION Basic Installation ...................................................... 2 Economizers ?[...]

  • Page 3

    Manual 2100-390 Page 1 GENERAL GENERAL INFORMATION The economizer should only be installed by a trained heating and air conditioning technician. These instructions serve as a guide to the technician installing the economizer package. They are not intended as a step by step procedure with which the mechanically inclined owner can install the package[...]

  • Page 4

    Manual 2100-390 Page 2 2. Remove and save the existing exterior blower access and service access panels on the Bard wall mount unit. (See Figure 1.) INST ALLA TION BASIC INSTALLATION 1. Unpack the economizer assembly which includes the integral economizer with attached electrical harness, mixed air thermistor, miscellaneous hardware and installatio[...]

  • Page 5

    Manual 2100-390 Page 3 4. Remove and discard the condenser partition blank off plate. (See Figure 2.) 3. RIGHT HAND UNITS Remove and save existing unit return air filter and left side filter support 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[...]

  • Page 6

    Manual 2100-390 Page 4 5. FOR RIGHT HAND UNITS Install economizer by inserting the economizer into the unit to the far left side clearing the right filter bracket. Once the economizer is fully inserted, slide the economizer to the right until it is tight against the back of the control panel. (See Figure 3.) FOR LEFT HAND UNITS Install economizer b[...]

  • Page 7

    Manual 2100-390 Page 5 6. Mount mixed air thermistor to blower partition as shown with screws provided. Bracket with sensor installs on top of blower partition. Screws are inserted from the underside. Route wires as shown and secure with wire tie. Connect wires to thermistor. (See Figures 2 & 3.) 7. Open unit control panel to gain access to uni[...]

  • Page 8

    Manual 2100-390 Page 6 FIGURE 5 TOP VIEW OF CONTROL PANEL MIS-350[...]

  • Page 9

    Manual 2100-390 Page 7 9. Connect lead with fork terminal to corresponding points on terminal strip. Re.: C.Y.G. (See wiring diagram.) 10. Wire nut leads with 5/8” stripped ends to Y1 and Y2 leads from thermostat. See wiring diagram in this manual or on economizer. NOTE: Wires referenced in Note 1 on wiring diagram are for special control applica[...]

  • Page 10

    Manual 2100-390 Page 8 ECONOMIZER – WA, WL & WH SERIES 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 op[...]

  • Page 11

    Manual 2100-390 Page 9 CONDITION B – WARM OUTDOORS First stage cooling cycles and compressor and dampers remain in mechanical cooling mode. FIGURE 7 MECHANICAL COOLING OPERATION MIS-348[...]

  • Page 12

    Manual 2100-390 Page 10 FIGURE 8 ECONOMIZER OPERATION FOR SINGLE COMPRESSOR UNIT MIS-1351 WALL THERMOSTATS FOR HEAT PUMPS WITH ECONOMIZER Thermostat Part 8403-027 (White Rodgers IF92-71) Electronic Heat Pump Thermostat 2 Stage Cool / 3 Stage Heat FOR AIR CONDITIONING WITH ECONOMIZER Thermostat Part No. 8403-021 (Honeywell T874D1934) Subbase part no[...]

  • Page 13

    Manual 2100-390 Page 11[...]