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Bard EIFM-3C manual

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Table of contents for the manual

  • Page 1

    Manual 2100-449A Page 1 of 13 INST ALLA TION INSTRUCTIONS ECONOMIZERS WITH EXHAUST Models EIFM-3C For Use with Bard 2-1/2 through 3 T on W all Mount Air Conditioners and Heat Pump s Produced in 2005 and Later Manual : 2100-449A Supersedes: 2100-449 File: V olume III T ab 19 Date: 03-14-08 Bard Manufacturing Company , Inc. Bryan, Ohio 43506 Since 19[...]

  • Page 2

    Manual 2100-449A Page 2 of 13 CONTENTS GENERAL General Information ................................................. 3 Unpacking ................................................................ 3 Description ............................................................... 3 INST ALLA TION Basic Installation ..........................................[...]

  • Page 3

    Manual 2100-449A Page 3 of 1 3 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[...]

  • Page 4

    Manual 2100-449A Page 4 of 1 3 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 ins[...]

  • Page 5

    Manual 2100-449A Page 5 of 1 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 a[...]

  • Page 6

    Manual 2100-449A Page 6 of 1 3 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 econ[...]

  • Page 7

    Manual 2100-449A Page 7 of 1 3 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 acces[...]

  • Page 8

    Manual 2100-449A Page 8 of 1 3 FIGURE 5 TOP VIEW OF CONTROL PANEL[...]

  • Page 9

    Manual 2100-449A Page 9 of 1 3 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 con[...]

  • Page 10

    Manual 2100-449A Page 10 of 1 3 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,[...]

  • Page 11

    Manual 2100-449A Page 11 of 1 3 CONDITION B – WARM OUTDOORS First stage cooling cycles and compressor and dampers remain in mechanical cooling mode. FIGURE 7 MECHANICAL COOLING OPERATION[...]

  • Page 12

    Manual 2100-449A Page 12 of 1 3 FIGURE 8 ECONOMIZER OPERATION FOR SINGLE COMPRESSOR UNIT WALL THERMOSTATS FOR HEAT PUMPS WITH ECONOMIZER Thermostat Part 8403-060 Programmable or Non- Programmable Multi-Stage Heat/Cool & Heat Pump Thermostat. Automatic or Manual Changeover (Digital Electronic). 3 Stage Cool / 3 Stage Heat FOR AIR CONDITIONING WI[...]

  • Page 13

    Manual 2100-449A Page 13 of 1 3[...]