Manual 2100-495a page 1 of 21 models: wferv-a-x wferv-a-4 energy recovery ventilator with exhaust bard manufacturing company, inc. Bryan, ohio 43506 since 1914...Moving ahead, just as planned. Manual: 2100-495a supersedes: 2100-495 file: volume iii, tab 19 date: 04-02-08 installation instructions.
Manual 2100-495a page 2 of 21 contents bard manufacturing company, inc. Bryan, ohio usa 43506 figures figure 1 intake hood assembly ............................ 6 figure 2 remove vent option door ...................... 7 figure 2a assembly of exhaust blower enclosure ... 7 figure 3 filter & exhaust ...
Manual 2100-495a page 3 of 21 model nomenclature legend note: never set intake blower at a lower speed than the exhaust blower, as it will create a negative pressure in the room. During operation below 5 degrees f outdoor temperature, freezing of moisture in the heat transfer wheel can occur. Consul...
Manual 2100-495a page 4 of 21 winter heating performance (indoor design conditions 70° f db) note: sensible performance only is shown for winter application legend: vlt = ventilation load – total vls = ventilation load – sensible vll = ventilation load – latent hrt = heat recover – total hrs = heat ...
Manual 2100-495a page 5 of 21 basic installation (field installation) 1. Unpack the ventilator assembly, which includes the integral ventilator with attached electrical harness and miscellaneous hardware. 2. Remove intake hood assembly from back of ventilator. (see figure 1.) 3. Remove the existing ...
Manual 2100-495a page 6 of 21 figure 1 intake hood assembly 16. Disconnect the wires connected in step 10 if other control options are to be used. 17. Replace the lower service access panel with the new panel provided. Attach air intake hood with screws provided. (see figure 9.) be sure to insert th...
Manual 2100-495a page 7 of 21 figure 2 remove vent option door mis-2350 front door vent option door exhaust cover plates figure 2a assembly of exhaust blower enclosure part numbers color a b c beige 134-248-x 134-244-x 134-243-x gray 134-248-4 134-244-4 134-243-4 b a a b c mis-2461.
Manual 2100-495a page 8 of 21 figure 3 filter and exhaust plate location front exhaust fill plate fill plate filter front door rear exhaust screw mis-2345.
Manual 2100-495a page 9 of 21 figure 4 installation of exhaust blower assembly mis-2353 assembly right side lower wferv front plate remove fasten assembly to condenser partition with (4) screws do not locating holes attatch exhaust blower encloser with screws provided as shown..
Manual 2100-495a page 10 of 21 figure 5 installation of wferv.
Manual 2100-495a page 11 of 21 figure 6 wferv assembly.
Manual 2100-495a page 12 of 21 figure 7 wiring – 230 volt mis-2356 on wiring diagram 230 volt control board as shown wires to "l1" and "l2" on blower wires, connect wires inserted with connect low voltage wires to "c", "w1", and "g" as shown on wiring diagram ground wire.
Manual 2100-495a page 13 of 21 figure 8 installation of fresh air intake hood assembly.
Manual 2100-495a page 14 of 21 figure 9 operation of unit with wferv installed supply air air exhaust return air top filter burner box exhaust blower hood intake air gas manifold gas valve inducer draft air) blower blower exhaust werv cassette hood indoor (comfort wferv hood intake blower intake air...
Manual 2100-495a page 15 of 21 basic installation (factory installed versions) 1. Remove air intake hood from return air area of unit. (see figure 1.) 2. Install air intake hood. Refer to item 17 of basic installation (field installation). 3. Refer to control wiring section for suggested control sch...
Manual 2100-495a page 16 of 21 all units are factory set on high speed and can be field adjusted for lower speeds if required. 240-volt units (single switch models): the speed of both blowers (intake and exhaust) can be controlled by a switch located on the left side of the control panel, behind the...
Manual 2100-495a page 17 of 21 quarterly maintenance 1. Inspect mist eliminator/prefilter and clean if necessary. This filter is located in the fresh air intake hood on the front of the unit. This is an aluminum mesh filter and can be cleaned with water and any detergent not harmful to aluminum. 2. ...
Manual 2100-495a page 18 of 21 figure 10 thermostat wiring diagram.
Manual 2100-495a page 19 of 21 figure 11 terminal block location.
Manual 2100-495a page 20 of 21 figure 12 hub assembly with ball bearing.
Manual 2100-495a page 21 of 21.
