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Bard W18AA-A Installation instructions manual

Manual is about: WALL MOUNTED PACKAGED AIR CONDITIONER

Summary of W18AA-A

  • Page 1

    Page 1 of 32 wall mounted packaged air conditioner models: installation instructions w18aa-a w24aa-a w24aa-b w24aa-c w24aa-d w24aa-f w30aa-a w30aa-b w30aa-c w30aa-d w30aa-f w36aa-a w36aa-b w36aa-c w36aa-d w36aa-e w36aa-f w42aa-a w42aa-b w42aa-c w42aa-e w42aa-f w48aa-a w48aa-b bard manufacturing comp...

  • Page 2: Contents

    Manual 2100-640f page 2 of 32 contents figures figure 1 fresh air damper .................................. 5 figure 2 unit dimensions ................................... 7 figure 3a mounting instructions – w18, 24 ............ 8 figure 3b mounting instructions – w30, 36 ................ 9 figure 3c...

  • Page 3

    Manual 2100-640f page 3 of 32 getting other information and publications these publications can help when installing the furnace. They can usually be found at the local library or purchased directly from the publisher. Be sure to consult the current edition of each standard. National electrical code...

  • Page 4

    Manual 2100-640f page 4 of 32 wall mount general information air conditioner wall mount model nomenclature note: vent options x, b and m are without exhaust capability. May require separate field-supplied barometric relief in building. Shipping damage upon receipt of equipment, the carton should be ...

  • Page 5

    Manual 2100-640f page 5 of 32 duct work all duct work, supply and return, must be properly sized for the design airflow requirement of the equipment. Air conditioning contractors of america (acca) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space ...

  • Page 6: Installation

    Manual 2100-640f page 6 of 32 clearances required for service access and adequate condenser airflow models left side right side discharge side w18a, w24a, w30a, w36a 15" 20" 10' w18l, w24l, w30l, w36l 20" 15" 10' w42a, w48a, w60a, w72a 20" 20" 10' w42l, w48l, w60l, w72l 20" 20" 10' minimum clearance...

  • Page 7

    Manual 2100-640f page 7 of 32 dimensions of basic unit for architectural and installation requirements (nominal) model width (w) depth (d) height (h) supply return a b c b e f g i j k l m n o p q r s t w18*a w24*a 33.300 17.125 74.563 7.88 19.88 11.88 19.88 35.00 10.88 29.75 20.56 30.75 32.06 33.25 ...

  • Page 8

    Manual 2100-640f page 8 of 32 figure 3a w18aa, w18la, w24aa, w24la mounting instructions 12" 12" 12" 12" 12" 20" 20" 8" 20 1 2 " 12" 3 13 16 " 2" 2" 7 1 16 " 7 1 16 " 5" 1" 3" 4" ty p. 3 1 8 " 4" ty p. 7 8 " 9" no tes: w all st ruc ture en ti re l en gt h of to p. Top w all of ca ul ki ng al ong pa ...

  • Page 9

    Manual 2100-640f page 9 of 32 figure 3b w30aa, w30la, w36aa, w36la mounting instructions 2 c d c 1 2" 1 2" 1 2" 1 2" 1 2" b 2 8" 1 4" 4 11 16 " 4 11 16 " 4" typ. " 1 8 a 7 8 " 7 8 " 4" typ. 3 7 8 " e 9 1 16 " 4 7 8 " ret ur n air silic one cau lking be placed behin d suppli ed no tes: ent ir e len g...

  • Page 10

    Manual 2100-640f page 10 of 32 figure 3c w42aa, w42la, w48aa, w48la mounting instructions d 16" 16" 16" 16" 16" 1 7 8 " 6 1 2 " 6 1 2 " 2 1 8 " 7 8 " 1" 3" 4" ty p. 4" ty p. 6 1 2 " 30" e 16" a c c 3 1 8 " b w all opening and hole lo ca tion view re turn air 1 req ui re d di m en sio ns to m ai nt a...

  • Page 11

    Manual 2100-640f page 11 of 32 figure 3d w60aa, w60la, w72ab, w72lb mounting instructions d 16" 16" 16" 16" 16" 2 " 6 8 " 5 8 9 7 " 1" 3" ty p. 1 4" 4" ty p. 6 1 2 " 30" e 16" a c c " 7 8 3 b " 8 7 1 1 2 " 6 1 1/4 30 1/2 1/ 4" cl ea ra nc e o n a ll su pplied foa m ai r seal a su pp ly o pen ing si ...

  • Page 12: Warning

    Manual 2100-640f page 12 of 32 figure 4 electric heat clearance w30aa, w30la, w36aa, w36la, w42aa, w42la, w48aa, w48la, w60aa, w60la, w72ab, w72lb warning a minimum of 1/4" clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3' of ductin...

  • Page 13

    Manual 2100-640f page 13 of 32 figure 5 wall mounting instructions figure 6 wall mounting instructions duct opening return air supply air wood frame wall installation opening wall before mount on unit opening before installation bottom mounting concrete block wall installation bracket. Mount on open...

  • Page 14

    Manual 2100-640f page 14 of 32 figure 7 common wall mounting installations rafters ducted supply rafters rafters rafters false wall outside wall no duct supply air grille return at unit wall raised floor return air lowered grille return air wall ceiling surface space return air return air grille wal...

  • Page 15

    Manual 2100-640f page 15 of 32 wiring – main power refer to the unit rating plate for wire sizing information and maximum fuse or circuit breaker size. Each outdoor unit is marked with a “minimum circuit ampacity”. This means that the field wiring used must be sized to carry that amount of current. ...

  • Page 16

    Manual 2100-640f page 16 of 32 table 1 wall thermostats table 2 humidity controls part number predominate features 8403-038 (h600a1014) spdt switching, pilot duty 50va @ 24v humidity range 20-80% rh 8403-047 (h200-10-21-10) electronic dehumidstat spst closes-on-rise humidity range 10-90% with adjust...

  • Page 17

    Manual 2100-640f page 17 of 32 thermostat w1/e a yo/d l o/b y2 y1 r g c w2 bard #8403-060 6 10 12 11 9 4 12-pin vent plug 2 3 5 7 co2 out optional co2 controller bard part #8403-067 6 5 4 3 2 1 temp-out 24vac w3/8 7 6 5 3 2 r unit low voltage term. Strip w2 c g rt y1 y2 b/w1 l/1 d a 4 do not add the...

  • Page 18

    Manual 2100-640f page 18 of 32 figure 9 thermostat connections optional co2 controller bard part #8403-067 6 5 4 3 2 1 temp-out co2 out 24vac 7 6 5 3 2 r unit low voltage term. Strip w2 c g rt y1 y2 b/w1 l/1 d a w3/8 4 5 do not add these wires if setting up for modulating control. See note 7. 7 jump...

  • Page 19: Start Up

    Manual 2100-640f page 19 of 32 start up these units require r-410a refrigerant and polyol ester oil. General 1. Use separate service equipment to avoid cross contamination of oil and refrigerants. 2. Use recovery equipment rated for r-410a refrigerant. 3. Use manifold gauges rated for r-410a (800 ps...

  • Page 20

    Manual 2100-640f page 20 of 32 high pressure switch all w**a/w**l wall mounted air conditioner series models are supplied with a remote reset for the high and low pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again . Three phase scroll comp...

  • Page 21

    Manual 2100-640f page 21 of 32 first check to make sure that either the optional vent is plugged into the vent connection plug or the supplied jumper plug is in place. The unit will not operate without anything plugged in. This plug is located on the side of the control panel behind the front vent d...

  • Page 22: Service

    Manual 2100-640f page 22 of 32 troubleshooting nidec selectech series ecm motors if the motor is running 1. It is normal for the motor to rock back and forth on start up. Do not replace the motor if this is the only problem identified. 2. If the system is excessively noisy, does not appear to change...

  • Page 23

    Manual 2100-640f page 23 of 32 figure 11 motor connections manual 2100-467h page 23 of 23 figure 11 troubleshooting ge x13-series ecm2.3 ™ motors cont’d. Model x13 communication diagnostics the x13 motor is communicated through 24 vac low voltage (thermostat control circuit wiring). 1. Start with un...

  • Page 24

    Manual 2100-640f page 24 of 32 figure 12 fan blade setting table 5 fan blade dimension r-410a refrigerant charge this unit was charged at the factory with the quantity of refrigerant listed on the serial plate. Ahri capacity and efficiency ratings were determined by testing with this refrigerant cha...

  • Page 25

    Manual 2100-640f page 25 of 32 table 6 cooling pressure air temperature entering outdoor coil °f low side pressure ± 4 psig high side pressure ± 10 psig tables are based upon rated cfm (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the...

  • Page 26

    Manual 2100-640f page 26 of 32 table 7 maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors. Based on 75°c copper wire. All wiring must conform to the national electrical code and all local codes. These “minimum circuit ampacity” values are to be used for ...

  • Page 27

    Manual 2100-640f page 27 of 32 table 8 maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors. Based on 75°c copper wire. All wiring must conform to the national electrical code and all local codes. These “minimum circuit ampacity” values are to be used for ...

  • Page 28

    Manual 2100-640f page 28 of 32 table 9 recommended airflow table 10 indoor blower performance table 11 maximum esp of operation electric heat only values shown are for units equipped with standard 1" throwaway filter or 1" washable filter. Derate esp by .15 for 2" pleated filters. Model nominal rate...

  • Page 29

    Manual 2100-640f page 29 of 32 table 12 electric heat models 240v-1 208v-1 240v-3 208v-3 460v-3 kw amps btuh amps btuh amps btuh amps btuh amps btuh 4 16.7 13650 14.4 10240 5 20.8 17065 18.1 12800 6 14.4 20500 12.5 15360 7.2 20500 8 33.3 27300 28.8 20475 9 21.7 30600 18.7 23030 10.8 30700 10 41.6 34...

  • Page 30

    Manual 2100-640f page 30 of 32 table 13 vent and control options w18, w24 w30, w36 w42, w48, w60, w72 part number description cma-14 odt x x x cmc-15 start kit (230v 1-phase) x x x cma-31 ddc x x cma-30 ddc x cma-28 lac x x x bfad-2 barometric fresh air damper - standard x bop-2 blank off plate x wm...

  • Page 31

    Manual 2100-640f page 31 of 32 w18aa-a w24aa-a w24aa-b w24aa-c w30aa-a w30aa-b w30aa-c w36aa-a w36aa-b w36aa-c w42aa-a w42aa-b w42aa-c w48aa-a w48aa-b w48aa-c w60aa-a w60aa-b w60aa-c w72ab-a w72ab-b w72ab-c table 14a optional accessories – right hand ehw2ta-a05 x x ehw2ta-a08 x x ehw2ta-a10 x x ehwa...

  • Page 32

    Manual 2100-640f page 32 of 32 table 14b optional accessories – left hand w18la-a w24la-a w24la-b w30la-a w30la-b w30la-c w36la-a w36la-b w36la-c w42la-a w42la-b w42la-c w48la-a w48la-b w48la-c w60la-a w60la-b w60la-c w72lb-a w72lb-b w72lb-c ehw2ta-a05l x x ehw2ta-a08l x x ehw2ta-a10l x x ehw2ta-b06...