Bard W3SAC-A Installation Instructions Manual Download

Page: 16 / 42

Manual 2100-720E
Page

16 of 42

FIGURE 18

Common Wall Mounting Installations

FLASHING

RECOMMEND WALL SLEEVE

WALL

RAIN

SUPPLY DUCT MAYBE LOCATED IN AN ATTIC

SUPPLY AIR DUCT

FINISHED CEILING

RAFTERS

WALL

OPENING WITH

CEILING SURFACE

OUTSIDE
WALL

WALL

WALL SLEEVE

SUPPLY DUCT MAY BE LOCATED IN AN ATTIC

FINISHED CEILING SURFACE

RAIN

CLOSET WALL

FINISHED CEILING SURFACE

RAIN

RECOMMEND WALL SLEEVE

RAFTERS

GRILLE

FLASHING

OR BELOW CEILING RAFTERS AS SHOWN

FLASHING

OUTSIDE

SURFACE

RAIN

FLASHING

SLEEVE

FINISHED

SUPPLY DUCT MAYBE LOCATED IN AN ATTIC

GRILLE

OUTSIDE

OR BELOW CEILING RAFTERS AS SHOWN

SUPPLY AIR DUCT

RAFTERS

RETURN AIR

RETURN AIR
OPENING WITH
GRILLE

FALSE WALL

SUPPLY AIR DUCT
OPENING WITH GRILLE

FALSE WALL INSTALLATION

CLOSET INSTALLATION

DUCTED SUPPLY
RETURN AT UNIT

FREE AIR
NO DUCT

MIS-4043 A

RAISED FLOOR

RETURN AIR

RETURN AIR
GRILLE

SUPPLY AIR
GRILLE

SUPPLY AIR DUCT

LOWERD
CEILING

OUTSIDE
WALL

RAFTERS

RETURN AIR

SPACE

Summary of Contents for W3SAC-A

Page 1: ...LLATION INSTRUCTIONS W3SAC A W3SAC B W3SAC C W4SAC A W4SAC B W4SAC C Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 720E Supersedes 2100 720D Date 3 1 21 W5SAC A W5SAC B...

Page 2: ...n Make Timer 24 Short Cycle Delay on Break 24 Low Pressure Detection 24 High Pressure Detection 25 Test Mode 25 Brownout Protection with Adjustment 25 Pressure Service Ports 26 Sequence of Operation 2...

Page 3: ...rammable Thermostat Connections 21 Figure 21 Non Programmable Thermostat Connections 22 Figure 22 8201 169 Compressor Control Module 25 Figure 23 Motor Connections 28 Figure 24 Motor Connections 29 Fi...

Page 4: ...should be carefully read before beginning the installation Note particularly Starting Procedure and any tags and or labels attached to the equipment While these instructions are intended as a general...

Page 5: ...on page 10 and Figures 14 18 pages 13 16 for further details Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity Some installat...

Page 6: ...tray see Figure 7 FIGURE 6 Remove Four Screws 5 Re install the four 4 screws into the upper screw holes on the filter support brackets Then bend the tab up out of the way see Figure 8 FIGURE 7 Re Inst...

Page 7: ...that can be adjusted to limit how far the damper opens so that the amount of fresh air that enters the structure is regulated Graphs found on pages 41 and 42 gives approximate fresh air amounts based...

Page 8: ...that could 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 co...

Page 9: ...g fresh air dampers ventilators economizers and energy recovery ventilators Be sure to install the return grille with the louvers pointed downward towards the floor This will help ensure return air is...

Page 10: ...he side of the unit 2 Locate and mark 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 Bracke...

Page 11: ...3SAC W4SAC W5SAC 20 20 10 TABLE 2 Minimum Clearances Required to Combustible Materials Model Supply Air Duct 1st 3 Cabinet W3SAC W4SAC W5SAC 1 4 0 FIGURE 12 Vent Installation Removal Clearance Require...

Page 12: ...trol Panel Door Optional Electrical Entrance Drain W G F 4 Pitch Rain Hood Electrical Panel High Voltage Built In Entrance Heater Access Electric Heat Low Voltage Electrical Entrance 1 375 A K H D C I...

Page 13: ...NTAIN RECOMMENDED 1 CLEARANCE FROM COMBUSTIBLE MATERIALS 32 12 5 1 2 2 29 16 1 7 8 W5SAC REQUIRED DIMESIONS TO MAINTAIN 1 4 MIN CLEARANCE FROM COMBUSTIBLE MATERIALS 30 1 2 10 1 2 6 1 4 1 1 4 29 3 4 16...

Page 14: ...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 the first 3...

Page 15: ...ACH TO BOTTOM PLATE OF WALL 1 000 CLEARANCE ALL AROUND DUCT ATTACH TO TOP PLATE OF WALL THIS STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL A SECOND MEMBER MAY BE REQUIRED FOR SOME W...

Page 16: ...VE RAFTERS GRILLE FLASHING OR BELOW CEILING RAFTERS AS SHOWN OR BELOW CEILING RAFTERS AS SHOWN FLASHING OUTSIDE SURFACE RAIN FLASHING SLEEVE FINISHED SUPPLY DUCT MAYBE LOCATED IN AN ATTIC GRILLE OUTSI...

Page 17: ...he most commonly used heater sizes Also shown are WIRE SHIELD FIELD HIGH OR LOW VOLTAGE WIRE SHIELD FRONT VIEW FIGURE 19 High Voltage Connections the number of field power circuits required for the va...

Page 18: ...t RT and R are connected with a brass jumper bar which can be removed and RT and R connected to an external NC normally closed contact such as a fire smoke detector that will cause shutdown of the equ...

Page 19: ...it filter surface When pressure drop is higher than the switch setting NO and NC contacts are provided to indicate the filter needs to be serviced Refer to page 35 for instructions on making switch ad...

Page 20: ...6 Pro Wi Fi 2 stage Cool 3 stage Heat Heat Pump 2 stage Cool 2 stage Heat Conventional Programmable Non Programmable Electronic Auto or Manual changeover Wi Fi TABLE 5B Wall Thermostats 3 Stage Balanc...

Page 21: ...for the A output to function during scheduled occupied periods Must be configured for multi stage for Y1 output to be active 1st stage cooling For dehumidification must be configured for No Economize...

Page 22: ...trol Optional for ECON Only See vent 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 anadditional wire...

Page 23: ...der tank as a liquid to avoid any fractionation and to ensure optimal system performance Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction Safety Pra...

Page 24: ...sor operation is inhibited If a fault condition occurs reverse two of the supply leads to the unit Do not reverse any of the unit factory wires as damage may occur Condenser Fan Operation NOTE Certain...

Page 25: ...ndition in a situation where the switch is open If the high pressure switch opens the CCM will de energize the compressor If the switch closes again it will then restart the compressor after the delay...

Page 26: ...e installed on all units so that the system operating pressures can be observed Pressure tables can be found on page 32 This unit employs high flow Coremax valves instead of the typical Shrader type v...

Page 27: ...unit is being installed with any ventilation package a Bard LAC kit must be installed Failure to utilize an LAC with any air conditioner can cause coil freeze up NOTE Economizer will disable Balanced...

Page 28: ...y D Check the external static pressure total of both supply and return to ensure it is within the range as listed on the unit serial plate If higher than allowed additional duct work is needed E If th...

Page 29: ...e see Figure 24 2 Initiate a demand from the thermostat and check the voltage between the common and the appropriate motor terminal 1 5 G input is typically on terminal 1 but always refer to wiring di...

Page 30: ...trol circuit molded plug from the compressor and measure the solenoid coil resistance The resistance should be 32 to 60 ohms depending on compressor temperature 4 Next check the molded plug Voltage ch...

Page 31: ...R SIDE TO GET TO THE CONDENSOR COIL OR FAN BLADE MIS 4045 Remove screws and fan shroud to access fan or coil Parts hidden for clarity R 410A Refrigerant Charge This unit was charged at the factory wit...

Page 32: ...146 507 147 536 149 566 151 597 153 636 85 72 Low Side High Side 139 353 141 374 143 395 144 418 146 443 147 469 149 496 151 525 152 555 154 586 156 618 __ TABLE 10B 1st Stage Cooling Pressures Balanc...

Page 33: ...Z B06 B09 B15 B18 230 208 3 1 1 1 1 2 28 28 34 52 N A 40 40 40 60 N A 8 8 8 6 N A 10 10 10 10 N A 34 28 40 30 8 10 10 10 W5SAC C00 C0Z C09 C15 460 3 1 1 1 14 18 26 20 20 30 12 12 10 12 12 10 These Min...

Page 34: ...mes unless there is a call for ventilation electric heat or 2nd stage cooling from a 2 stage thermostat At that time the unit will automatically activate a higher speed tap Blower Speeds The ECM motor...

Page 35: ...per between Y1 and Y2 installed and it must be removed to use Balanced Climate mode The unit is shipped with the orange black wire connected to terminal LO rated speed on the blower selection speed te...

Page 36: ...5 restriction was reached turn the knob slightly clockwise If the switch tripped after 75 turn the knob counter clockwise see Figure 30 5 Replace the upper front panel and repeat Steps 1 3 Continue to...

Page 37: ...2100 720E Page 37 of 42 FIGURE 30 Adjusting Dirty Filter Switch TURN CLOCKWISE TO INCREASE RESTRICTION AMOUNT REQUIRED TO ACTIVATE THE SWITCH AND COUNTER CLOCKWISE TO DECREASE RESTRICTION AMOUNT MIS...

Page 38: ...210 1165 W4SAC 0 00 1275 1195 1795 1685 1895 1850 2000 1920 0 10 1140 1070 1730 1625 1845 1765 1940 1850 0 15 1075 1015 1690 1590 1815 1725 1905 1815 0 20 1015 960 1655 1555 1785 1685 1870 1780 0 25 1...

Page 39: ...TABLE 16 Electric Heat Model W3SAC W4SAC W5SAC Outlet Front Speed High Low A0Z A05 A10 A15 A20 50 50 50 50 50 50 50 50 50 40 B0Z B06 B09 B15 B18 50 50 50 50 50 50 50 50 50 50 C0Z C09 C15 50 50 50 50...

Page 40: ...HWA42C B06 X EHW3SC B09 X X EHWA42CD B09 X EHW3SC B15 X X EHWA42C C05 X EHW3SC C06 X X EHW3SC C09 X X EHW3SC C15 X X EHWA42C C15 X EHWA48C A05 X EHWA48CD A05 X EHWA48CD A10 X EHWA48CD B09 X EHWA48C B1...

Page 41: ...Manual 2100 720E Page 41 of 42 GRAPH 2 W4SAC FAD NE5 W O Exhaust Ventilation Delivery GRAPH 1 W3SAC FAD NE5 W O Exhaust Ventilation Delivery...

Page 42: ...Manual 2100 720E Page 42 of 42 GRAPH 3 W5SAC FAD NE5 W O Exhaust Ventilation Delivery...

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