Bard 11EER WA W18AB-A User'S Application Manual Download Page 95

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Manual 7960-811
Page

12 of 13

DEHUMIDIFICATION RELAY LOGIC BOARD



Cooling takes precedence over dehumidification. A cooling call cancels dehumidification.



If jumper on RLB is set to “1-2 full-time dehumidification”, outputs will energize. This is the factory default

setting. If jumper is set to “2-3 occupied dehumidification only”, outputs will be off.

24V Terminal

Block Connections

Outputs From Board

Inputs to Board

TWV

Cooling Mode

Unoccupied

Cooling Mode

Occupied

Cooling Mode



w / Dehum

1st Stage Heating

Unoccupied

1st Stage Heating

Occupied

1st Stage Heating

w / Dehum

2nd Stage Heating

Unoccupied

2nd Stage Heating

Occupied

2nd Stage Heating

w / Dehum

Dehumidification

Unoccupied



Dehumidification

Occupied

Summary of Contents for 11EER WA W18AB-A

Page 1: ...following 2100 034 G Users Guide 2100 479 Leak Test Evacuation Charging 2100 689 H Wall Mount PKG A C Manual 2110 1449 H Replacement Parts Manual 7960 805 A S8201 164 CCM Instructions 7960 811 Supplem...

Page 2: ......

Page 3: ...e Control Solutions BARDHVAC COM Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 034G Supersedes 2100 034F Date 12 17 20 USER S APPLICATION GUIDE AND TECHNICAL PRODUCT OVE...

Page 4: ...OUNT Products Clearances for Outdoor Condenser Fan Airflow 6 WALL MOUNT Products Clearances for Indoor Supply and Return Airflow 6 WALL MOUNT Products Condensate and Defrost Drainage 7 I TEC and Q TEC...

Page 5: ...hnical Product Overview covers the following topics Documentation provided by Bard for proper use of your new product Unit installation guidelines Routine unit maintenance Unit operation Unit troubles...

Page 6: ...puter at the office a laptop or an internet capable cell phone at the worksite Up to date documentation is available along with specification sheets and other valuable resources regarding your new Bar...

Page 7: ...sheet and a safety factor should be designed into the installation Typical fasteners to attach the unit to the wall using the integrated mounting flanges on both sides of the unit include tap cons bo...

Page 8: ...nents can be serviced and maintenance can be performed when needed National and local electrical codes must be reviewed before unit installation Always use common sense when installing products follow...

Page 9: ...water is generated inside the unit as moisture is extracted from the supply air This is collected in an evaporator pan and drained to either a drainage system indoor products or outside the unit cabi...

Page 10: ...it A louver grille is used to cover the external wall opening and fasteners used during sleeve installation Wall Sleeve Wall sleeves allow for outdoor air to enter and exit the unit inside the room Ai...

Page 11: ...tion instructions when electric heating is used I TEC Air Path The I TEC product has been engineered for extremely quiet unit operation and has multiple air paths for air entering and exiting the unit...

Page 12: ...r This is collected in an evaporator pan and needs to be drained to an external drainage system Your new Bard product includes provisions to allow condensate water to exit the unit and fittings will n...

Page 13: ...rd product Single and Three Phase Power Bard products are available in single and three phase power options It is important to connect the proper phase listed on the unit serial plate Three phase powe...

Page 14: ...ect filter size and type for your system is always used If there is any question as to acceptable filter size or type review the installation instructions for the specific equipment involved if availa...

Page 15: ...with vent options will have a washable screen behind the vent intake panel Filter Door The unit room air filter is located behind this panel for units without a vent hood Vent Hood Door The unit indoo...

Page 16: ...gs of the filter are available up to MERV13 These filters filter the air used for cooling inside the classroom or structure and should be changed regularly If the unit has an air intake vent option in...

Page 17: ...vy The upper section of the Q TEC contains two 1 throwaway filters standard with every unit These filters filter the air used for cooling inside the classroom or structure and should be changed regula...

Page 18: ...having the installing dealer or service company instruct you in the proper procedure and technique The product installation instructions contain additional information regarding unit coil cleaning Th...

Page 19: ...ront grille C H Wall Mount Units These units are called draw through condenser airflow units because they draw cool outdoor air in the front through the coil and blow the exiting warm condenser air th...

Page 20: ...he cooling mode will remove some amount of moisture as it reduces the air temperature precise humidity regulation in the conditioned space cannot be assured and additional equipment such as a dedicate...

Page 21: ...primary difference is that the system uses water or antifreeze protected water solution instead of an air cooled outdoor heat transfer coil and there is no outdoor motor fan system but instead a water...

Page 22: ...determine if your installation has any of these devices and for any instructions or maintenance requirements you should be aware of as the user Ventilation Options Air to Air or Water to Air Systems...

Page 23: ...system Off then back On when you need it This can allow temperature and humidity to build up in warm weather conditions and force the system to run continuously to try and catch up If the building is...

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Page 25: ...Inc Bryan Ohio 43506 www bardhvac com Manual 2100 689H Supersedes 2100 689G Date 3 1 21 W18LB A W24LB A W24LB B W24LB F W30ABDA W30ABDB W30ABDC W30AB A W30AB B W30AB C W30AB D W30AB F W36AB A W36AB B...

Page 26: ...Hints 22 Sequence of Operation 22 Balanced ClimateTM Mode 22 Vent Connection Plug 23 Compressor Control Module 23 Features 23 Delay on Make Timer 23 Short Cycle Delay on Break 23 Low Pressure Detecti...

Page 27: ...8400 Fax 404 321 5478 NFPA National Fire Protection Association Batterymarch Park P O Box 9101 Quincy MA 02269 9901 Telephone 800 344 3555 Fax 617 984 7057 TABLES Table 1 Clearance Required for Servic...

Page 28: ...do not supersede any national and or local codes in any way Authorities having jurisdiction should be consulted before the installation is made See page 3 for information on codes and standards Size...

Page 29: ...8 Any grille that meets with 5 8 louver criteria may be used It is recommended that Bard Return Air Grille Kits RG2 through RG3 or RFG2 through RFG3 be installed when no return duct is used Contact d...

Page 30: ...hinder unit installation and servicing including outdoor electrical conduits junction boxes wall drains vent hoods windows doors overhangs and posts Condensate Water Drainage Review all codes and requ...

Page 31: ...rough ventilation options including fresh air dampers ventilators economizers and energy recovery ventilators Be sure to install the return grille with the louvers pointed downward towards the floor T...

Page 32: ...ark bolt hole locations and bottom mounting bracket location Install bottom mounting bracket with field supplied fasteners to wall if it is to be used optional Bracket must be level and installed in t...

Page 33: ...unit and W A right side compressor and controls for right unit See Specifications Sheet S3573 TABLE 1 Clearance Required for Service Access and Adequate Condenser Airflow Model Left Side Right Side D...

Page 34: ...lectrical Entrances Side Wall Supply Air Opening Shipping Location Brackets Return Air Opening Built In Mounting Top Rain Flashing Bottom Installation Bracket Back View 44 O E R S S S S S T N B P M L...

Page 35: ...UNDER SILICONE CAULKING BE PLACED BEHIND TOP FLASHING AT TIME OF INSTALLATION OPENING Wall Opening and Hole Location View ENTIRE LENGTH OF TOP RETURN AIR DUCT Right Side View NOTES OF CAULKING ALONG...

Page 36: ...MBUSTABLE RAIN FLASHING W A UNIT SHOWN W L UNIT TOP FLASHING AT TIME OF INSTALLATION THE SIDE MOUNTING FLANGES AND UNDER SILICONE CAULKING BE PLACED BEHIND IS ON OPPOSITE LEFT SIDE OPENING CONTROLS AN...

Page 37: ...SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1 4 CLEARANCE TO COMBUSTIBLE SURFACES Fire hazard Maintain minimum 1 4 clearance between the supply air duct and combustible materials in...

Page 38: ...CTORY SUPPLIED RAIN FLASHING SUPPLY AIR MIS 548 A SIDE VIEW I A C K E 1 000 B 1 000 SUPPLY DUCT OVER FRAME INTERIOR FINISHED WALL ALL AROUND DUCT FRAMING MATERIAL EXTERIOR FINISH WALL OPENING FOR ACTU...

Page 39: ...best unit performance and efficiency Review duct grille or return duct work Avoid using restrictive duct work to Unit Mount Return Grille Fixed Blade Wall wall Outside Wall Ducted Installations Adjus...

Page 40: ...during cooling operation The Y1 terminal is the 24VAC input for Balanced Climate compressor cooling operation The Y2 terminal is the 24VAC input Refer to the unit rating plate for wire sizing informa...

Page 41: ...ctory adjusted and slows the condenser fan speed rpm Outdoor Temperature Switch and Freeze Protection Thermostat An outdoor temperature switch and an evaporator freeze protection thermostat is supplie...

Page 42: ...tion Sensor w Intelligent Learning Control BACnet compatible Ethernet compatible CS9BE THOCA 3 stage Cool 3 stage Heat Programmable Non Programmable HP or Conventional Auto or Manual Changeover Humidi...

Page 43: ...upied periods Must be configured for multi stage for Y1 output to be active 1st stage cooling For dehumidification must be configured for No Economizer for YO D to be active for humidity control 4 Fac...

Page 44: ...installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire change is required See install Man...

Page 45: ...refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to ensure optimal system performance Refer to instructions for the cylinder that is being utilized...

Page 46: ...d These models are factory wired on low speed Service Hints 1 Caution owner operator to maintain clean air filters at all times and also not to needlessly close off supply and return air registers Thi...

Page 47: ...ergize the compressor for the delay on break time If the switch closes again it will then restart the compressor If the switch trips again during the same Y call the compressor will be de energized an...

Page 48: ...equate utility or generator power this could lead to the compressor never starting The control will see the brownout immediately and not start A common scenario and one that has been seen in the field...

Page 49: ...3302 PA13362 A B PA13422 A B C PA13482 A B C PA13602 A B C contain the X13 Series Motors TROUBLESHOOTING GE X13 SERIES ECM2 3 MOTORS If the Motor is Running 1 It is normal for the motor to rock back a...

Page 50: ...utput 24VAC Common 24VAC Common 24VAC R Signal through thermostat output 2 If the motor has proper high voltage and ground at the L L1 G N L2 connections then continue with the Model SelecTech Communi...

Page 51: ...unit to the serial plate charge Removal of Fan Shroud 1 Disconnect all power to the unit 2 Remove the screws holding both grilles one on each side of unit and remove grilles 3 Remove nine screws hold...

Page 52: ...Low Side High Side 132 315 136 337 140 361 143 386 146 412 148 439 151 467 153 495 154 525 156 556 157 587 159 626 W24A L 75 62 Low Side High Side 123 302 125 323 127 344 129 367 132 391 134 415 136 4...

Page 53: ...138 409 140 436 143 463 145 492 147 522 149 552 151 584 154 623 W24A L 75 62 Low Side High Side 116 296 118 318 120 339 122 362 123 385 125 410 128 434 130 460 132 488 135 515 137 544 139 579 80 67 L...

Page 54: ...e it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes Model Rated Volts Phase No Field Power Circuits S...

Page 55: ...460 3 1 1 1 9 15 24 15 15 25 14 14 10 14 14 10 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electrical code latest version Article 3...

Page 56: ...nced Climate mode is activated Do not operate the unit in Balanced Climate mode if running high static applications as indicated in the blower performance table If Balanced Climate mode is activated a...

Page 57: ...gized the airflow amount will be lower than default airflow Tap 2 is used when Balanced Climate is called for by energizing the Y1 terminal of the low voltage terminal block with 24VAC Speed tap 2 is...

Page 58: ...ake proper switch adjustments 3 Re install upper front panel Dirty Filter Switch Adjustment 1 Apply power to the unit 2 Turn the unit indoor blower on energize R G on low voltage terminal board 3 With...

Page 59: ...2100 689H Page 35 of 42 FIGURE 17 Adjusting Dirty Filter Switch TURN CLOCKWISE TO INCREASE RESTRICTION AMOUNT REQUIRED TO ACTIVATE THE SWITCH AND COUNTER CLOCKWISE TO DECREASE RESTRICTION AMOUNT MIS...

Page 60: ...770 755 910 885 955 930 0 25 740 730 890 865 935 910 0 30 715 705 870 840 915 885 0 40 670 650 825 805 870 845 0 50 630 585 785 765 825 805 W30AB W30LB 0 00 830 825 1050 1020 1170 1135 1200 1205 0 10...

Page 61: ...igh Low A0Z A05 A08 A10 A15 50 50 50 30 50 50 50 40 40 50 50 50 35 35 B0Z B06 B09 B15 50 40 50 50 50 35 50 40 50 30 C0Z C06 C09 C15 50 50 50 50 50 45 50 50 40 35 TABLE 18 Electric Heat Models 240V 1 2...

Page 62: ...ent 0 10V No Controls X ECON S2 Economizer School X ECON WD2 Economizer Bldg Equipment Enthalpy X ECON DB2 Economizer Bldg Equipment Temperature X ERV FA2 Energy Recovery Ventilator 230V X ERV FC2 Ene...

Page 63: ...HW2TAB A08 X EHW2TA A10 X X EHW2TA B06 X EHWH24B C06 X EHW3TA A05 X X EHW3TA A08 X X EHW3TA A10 X EHW3TAB A10 X EHW3TA A15 X EHW3TAB A15 X EHW30A B06 X EHW3TA B06 X EHW3TA B09 X EHW3TAB B09 X EHW3TA B...

Page 64: ...1TAB A08L X EHW2TAB A05L X EHW2TAB A08L X EHW2TA A10L X X EHW2TA B06L X EHW3TA A05L X X EHW3TA A08L X EHW3TA A10L X EHW3TAB A10L X EHW3TA A15L X X EHW3TA B09L X EHW3TAB B09L X EHW3TA B15L X EHW3TAB B1...

Page 65: ...Manual 2100 689H Page 41 of 42 GRAPH 1 W18 B FAD NE2 3 W O Exhaust Ventilation Delivery GRAPH 2 W24 B FAD NE2 3 W O Exhaust Ventilation Delivery...

Page 66: ...Manual 2100 689H Page 42 of 42 GRAPH 3 W30 B FAD NE2 3 W O Exhaust Ventilation Delivery GRAPH 4 W36 B FAD NE2 3 W O Exhaust Ventilation Delivery...

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Page 68: ...dard Layout View 8 Usage List 9 Control Panel Dehum Layout View 10 Usage List 11 W30AB A W30AB B W30AB C W30AB D W30AB F W36AB A W36AB B W36AB C W36AB D W36AB E W36AB F W30ABDA W30ABDB W30ABDC W36ABDA...

Page 69: ...Manual 2110 1449H Page 2 of 12 CABINET COMPONENTS SEXP 907 A 10 23 21 22 24 32 29 13 25 11 8 7 4 28 27 5 15 16 31 12 17 18 20 3 26 2 19 1 6 33...

Page 70: ...21 552 k Condenser Partition Condenser Partition X X X X X X X X X X X X X X X X 21 FAD NE3 Fresh Air Damper Assembly X X X X X X X X 22 22 22 118 103 118 108 k 118 145 Condenser Grille Condenser Gril...

Page 71: ...Manual 2110 1449H Page 4 of 12 FUNCTIONAL COMPONENTS 10 11 2 3 1 4 5 6 9 8 7 12 13 14 15 SEXP 949...

Page 72: ...00 278 8000 283 8000 342 8000 439 Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor X X X X X X X X X X X 13 13 13 13 5051 203BX 5054 203BX 5051 202BX 5054 202BX...

Page 73: ...mpressor Compressor Compressor Compressor X X X X X X X 13 13 13 13 5051 203BX 5054 203BX 5051 202BX 5054 202BX Condenser Coil Condenser Coil Coated Condenser Coil Condenser Coil Coated X X X X X X X...

Page 74: ...ol Module Stator Cable EEV Stator Cable Only X X 4 8201 130 Control Relay X 5 3000 1602 Main Wire Assembly X 6 3000 1611 Transducer Wire Assembly Connects to EEV Board X NS 3000 1603 Transducer Wire A...

Page 75: ...Manual 2110 1449H Page 8 of 12 CONTROL PANEL 14 13 6 15 18 16 4 11 7 10 9 1 3 12 17 5 2 SEXP 908...

Page 76: ...Plug Support Bracket X X X X X X X X X X X NS 8615 038 Circuit Breaker 35A 2 Pole Opt X X X NS 8615 054 Circuit Breaker 20A 3 Pole Opt X NS 8615 051 Circuit Breaker 25A 3 Pole Opt X NS 8615 052 Circui...

Page 77: ...Manual 2110 1449H Page 10 of 12 CONTROL PANEL 7 17 11 12 16 3 10 8 13 15 14 9 4 5 6 18 1 2 SEXP 948...

Page 78: ...X X X X X 17 8201 130 Blower Control Relay X X X X X X X 18 141 188 Plug Support Bracket X X X X X X X NS 8615 038 Circuit Breaker 35A 2 Pole Optional X X NS 8615 054 Circuit Breaker 20A 3 Pole Option...

Page 79: ...rogrammed Control Only 230 208V Programmed Control Only 230 208V Programmed Control Only 460V Programmed Control Only 460V X O X O X O X O 2 151 111 Housing 2 2 2 2 3 144 174 Diffuser 2 2 2 2 4 5152 0...

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Page 81: ...delay on break time If the switch closes again it will then restart the compressor If the switch trips again during the same Y call the compressor will be de energized and the alarm terminal will be e...

Page 82: ...ill be detected and the blue LED will flash A flashing blue LED indicates that a brownout condition was sensed the control will continue to flash the blue LED until the Y call has been satisfied The c...

Page 83: ......

Page 84: ...the room The refrigerant gas is then routed from the desuperheating condenser to the system condenser for further heat transfer When the humidistat is satisfied the system automatically switches back...

Page 85: ...ete vacuum fully reclaim the system or charge the unit connections to both the suction and discharge service ports need to be utilized or the valve needs to be manually opened first The valve can be o...

Page 86: ...n of sensor or faulty sensor Refer to Table 2 on page 4 to check the resistance of the 10k ohm NTC thermistor to determine if the sensor is faulty Replace sensor if no reading or out of range 3 Suctio...

Page 87: ...8 21 11 630 71 6 22 11 200 73 4 23 10 780 75 2 24 10 380 77 25 10 000 78 8 26 9 630 80 6 27 9 280 82 4 28 8 940 84 2 29 8 620 86 30 8 310 87 8 31 8 010 89 6 32 7 730 91 4 33 7 450 93 2 34 7 190 95 35...

Page 88: ...0 0 54 8 61 4 55 1 62 5 55 5 63 5 55 8 64 6 56 1 65 6 56 4 66 7 Suction PSIG4 129 121 130 123 132 125 132 128 134 130 135 132 136 135 138 137 139 140 Discharge PSIG4 274 233 295 248 314 262 338 277 36...

Page 89: ...54 0 59 2 54 5 60 3 54 8 61 3 55 2 62 4 55 5 63 5 55 9 64 6 56 2 65 8 Suction PSIG 4 131 125 133 126 134 126 136 128 137 129 138 130 140 132 141 134 143 136 Discharge PSIG 4 290 245 310 259 332 274 3...

Page 90: ...6 57 0 54 0 58 1 54 3 59 0 54 7 60 1 55 0 61 1 55 4 62 2 55 7 63 2 56 0 64 3 56 3 65 3 Suction PSIG 4 125 114 126 115 127 117 128 118 129 120 131 122 132 125 134 128 135 131 Discharge PSIG 4 277 249...

Page 91: ...r WB 53 4 57 0 53 7 57 9 53 9 58 9 54 4 59 9 54 8 60 9 55 2 62 0 55 7 63 0 56 2 64 1 56 7 65 2 Suction PSIG 4 133 123 135 124 137 125 138 127 140 129 141 131 142 134 142 136 143 139 Discharge PSIG 4 2...

Page 92: ...Supply Air WB 65 3 65 5 65 4 65 5 65 4 65 4 65 4 65 3 65 4 65 3 65 4 65 3 65 4 65 3 65 4 65 3 65 4 65 5 Suction PSIG 4 132 125 133 126 134 127 135 128 136 129 137 131 139 132 140 133 141 135 Discharg...

Page 93: ...75 0 Supply Air WB 65 3 65 4 65 3 65 4 65 5 65 4 65 5 65 4 65 5 65 4 65 5 65 4 65 5 65 4 65 5 65 4 65 3 65 4 Suction PSIG 4 124 115 125 117 126 118 127 119 129 121 130 122 131 123 132 125 133 126 Disc...

Page 94: ...CHECK VALVE EEV TRANSDUCER FOR EEV SUCTION PRESSURE EEV CONTROL BOX MIS 4016 COMPRESSOR 4 WAY VALVE EVAPORATOR COIL REHEAT COIL EEV CHECK VALVE CONDENSER COIL TRANSDUCER FOR EEV SUCTION PRESSURE EEV C...

Page 95: ...dification only outputs will be off 24V Terminal Block Connections G Y1 D W1 A W2 Outputs From Board Inputs to Board G Y D W2 A1 G1 TWV YO Cooling Mode Unoccupied X X X X Cooling Mode Occupied X X X X...

Page 96: ...6 10 10 10 W48ACDC00 C0Z C09 460 3 1 1 12 17 15 20 14 12 14 12 W60ACDA00 A0Z A05 A10 230 208 1 1 1 1 41 41 59 50 50 60 8 8 6 10 10 10 W60ACDB00 B0Z B09 B15 230 208 3 1 1 1 28 35 53 40 40 60 8 8 6 10 1...

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Page 98: ...ting environment is exposed to airborne saline particles typically 5 miles from coast line must have corrosion protection or warrenty claims will be declined on corrosion based cabinet and part failur...

Page 99: ...rts Must be registered at www wallmountwarranty com within 90 days of installation for the 10 year parts coverage to be in effect Factory coated coils have a 5 year warranty in corrosive environments...

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