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Bard WGEIFM-5C manual

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Table of contents for the manual

  • Page 1

    Manual 2100-498B Page 1 of 17 ECONOMIZER WITH EXHAUST MODEL WGEIFM-3C WGEIFM-5C WGSEIFM-5 For Use with Bard 3 - 5 T on S tep Cap acity and 2 - 5 T on Single S t age W all Mount Air Conditioners with Gas Heat INST ALLA TION INSTRUCTIONS © Copyright 2007 Manual : 2100-498B Supersedes: 2100-498A File: V olume III T ab 19 Date: 02-24-10 Bard Manufactu[...]

  • Page 2

    Manual 2100-498B Page 2 of 17 CONTENTS General General Information ................................................. 3 Unpacking ................................................................ 3 Description ............................................................... 3 Models ................................................................ 3 In[...]

  • Page 3

    Manual 2100-498B Page 3 of 17 GENERAL GENERAL INFORMATION The ventilator should only be installed by a trained heating and air conditioning technician. These instructions serve as a guide to the technician installing the ventilator package. They are not intended as a step by step procedure with which the mechanically inclined owner can install the [...]

  • Page 4

    Manual 2100-498B Page 4 of 17 INST ALLA TION BASIC INSTALLATION 1. Unpack the ventilator assembly which includes the integral ventilator with attached electrical harness, blank-off plate and miscellaneous hardware. 2. Remove and save the existing exterior blower access and service access panels (see Figure 1). 3. Remove and discard exhaust cover pl[...]

  • Page 5

    Manual 2100-498B Page 5 of 17 FIGURE 2 INSTALLATION OF ECONOMIZER FIGURE 2 INSET SIDE SECTION 5. Install ventilator sheet metal assembly by inserting the ventilator into the unit – centering between the tubing on the left and the control panel on the right. Once the ventilator is fully inserted, slide the ventilator to align screw hole through th[...]

  • Page 6

    Manual 2100-498B Page 6 of 17 FIGURE 3 INSTALL LOOSE PIECE WIRE HARNESS PLUG SECURE INTO FILTER TR AY PLUG TO ROUTE WIRES THROUGH WIRE MO UNT, AND INTO HOLE AT REAR O F UNIT INTO L OW VO LTAGE TERMINAL BLOCK AREA MIS -2415[...]

  • Page 7

    Manual 2100-498B Page 7 of 17 9. Mount mixed air thermistor sensor to blower as shown with screws provided. Route two (2) red wires from wire harness installed in Step #7 through cable holders, and connect to thermistor sensor as shown in Figure 2. 10 . Connect the wires (with fork connectors) routed into the low voltage box in Step #7 to the low v[...]

  • Page 8

    Manual 2100-498B Page 8 of 17 EXAMPLE: 1. Measure return air temperature (RAT) (assume 75° F for example). 2. Measure outdoor air temperature (OAT) (assume 60° F for example). 3. Calculate the mixed air temperature (MAT) which will result from the desired combination of OAT (10 percent) and RAT (90 percent). .1 OAT + .9 RAT = MAT or substituting [...]

  • Page 9

    Manual 2100-498B Page 9 of 17 FIGURE 5 ECONOMIZER LOGIC MODULE[...]

  • Page 10

    Manual 2100-498B Page 10 of 17 WG3S Ventilation Airflow 0 100 200 300 400 500 600 700 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30 Vent Pos ition Ventilation Airflow (CFM) Stage #2 Operat ion Blower Only & Stage #1 Operat ion WG4S Ventila tion Airflow 0 100 200 300 400 500 600 700 800 900 0 2.5 5 7.5 10 12.5 15 17.5 20 22 .5 25 27.5 30 Vent P[...]

  • Page 11

    Manual 2100-498B Page 11 of 17 WG5S Ventilation A irflow 0 100 200 300 400 500 600 700 800 900 1000 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27. 5 30 Vent Position Ventilation Airflow (CFM) Stage #2 Operation Stage #1 Operation Blower Only[...]

  • Page 12

    Manual 2100-498B Page 12 of 17 0 50 100 150 200 250 300 350 400 450 500 550 600 clo sed A B C D Open Damp e r P osit io n W24G EIF M Airflow V ers us Position - Low Spe ed Fr ee Bl ow . 15" ES P . 30" ES P 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 clo sed A B C D Open Damp e r P osit io n W24 G E I FM A irf low V er sus Pos[...]

  • Page 13

    Manual 2100-498B Page 13 of 17 0 50 100 150 200 250 300 350 400 450 500 550 600 650 clo sed A B C D Open Damp e r P osit io n W30- 36G E I FM A ir flow V ers us Position - Low Speed Fr ee Bl ow . 15" ES P . 30" ES P 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 clo sed A B C D Open Damp e r P osit io n W3 0 - 36 G EI FM Air[...]

  • Page 14

    Manual 2100-498B Page 14 of 17 0 50 100 150 200 250 300 350 400 450 500 550 600 650 clo sed A B C D Open Dampe r Po sition W4 2 - 60 G EIF M Airflow V e rsus Po sit ion - Low S pe ed Fr ee Bl ow 0. 15" ES P 0. 30" ES P 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 clo sed A B C D Open Damp e r P osit io n W42 -6 0G EIFM[...]

  • Page 15

    Manual 2100-498B Page 15 of 17 FIGURE 6 ECONOMIZER OPERATION FOR SINGLE COMPRESSOR UNIT[...]

  • Page 16

    Manual 2100-498B Page 16 of 17 FIGURE 7 CALL FOR BLOWER OPERATION ECONOMIZER SEQUENCE OF OPERATION CONDITION A — COOL OUTDOORS First stage cooling closes and powers the economizer dampers to economizer mode and the indoor blower starts. Mixed Air Sensor senses a mixture of return air and outdoor air and modulates the dampers accordingly. Compress[...]

  • Page 17

    Manual 2100-498B Page 17 of 17 CONDITION B — WARM OUTDOORS First stage cooling cycles the compressor and dampers remain in mechanical cooling mode. FIGURE 8 CALL FOR COOLING OPERATION[...]