Instruction/ maintenance manual of the product WGEIFM-3C Bard
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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 G.
Manual 2100-498B Page 2 of 17 CONTENTS General General Information ................................................. 3 Unpacking ................................................................ 3 Description ...........................................
Manual 2100-498B Page 3 of 17 GENERAL GENERAL INFORMATION The ventilator should only be installed by a trained heating and air conditioning technician.
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).
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.
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 TERMINA.
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 .
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).
Manual 2100-498B Page 9 of 17 FIGURE 5 ECONOMIZER LOGIC MODULE.
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.
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 Ope.
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 .
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 .
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.
Manual 2100-498B Page 15 of 17 FIGURE 6 ECONOMIZER OPERATION FOR SINGLE COMPRESSOR UNIT.
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.
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.
An important point after buying a device Bard WGEIFM-3C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bard WGEIFM-3C yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bard WGEIFM-3C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bard WGEIFM-3C you will learn all the available features of the product, as well as information on its operation. The information that you get Bard WGEIFM-3C will certainly help you make a decision on the purchase.
If you already are a holder of Bard WGEIFM-3C, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bard WGEIFM-3C.
However, one of the most important roles played by the user manual is to help in solving problems with Bard WGEIFM-3C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bard WGEIFM-3C along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
