Bard WL421 User Manual Download

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INSTALLATION INSTRUCTIONS

WALL MOUNTED

PACKAGE AIR CONDITIONERS

MODELS

WL421
WL482
WL602

Manual :

2100-277C

Supersedes:

2100-277B

File:

Volume III Tab 16

Date:

09-20-01

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

Since 1914...Moving ahead just as planned.

Summary of Contents for WL421

Page 1: ... WALL MOUNTED PACKAGE AIR CONDITIONERS MODELS WL421 WL482 WL602 Manual 2100 277C Supersedes 2100 277B File Volume III Tab 16 Date 09 20 01 Bard Manufacturing Company Inc Bryan Ohio 43506 Since 1914 Moving ahead just as planned ...

Page 2: ...8 Table 9 Maximum EXP Electric Heat Only 18 Table 10 Pressure Table 18 Table 11 Optional Accessories 19 Getting Other Information and Publications 1 Wall Mount General Information 2 Heat Pump Wall Mount Model Nomenclature 2 Shipping Damage 5 General 5 Duct Work 5 Filters 6 Fresh Air Intake 6 Condensate Drain 6 Installation Instructions 7 Wall Mounting Information 7 Mounting the Unit 7 Wiring Main ...

Page 3: ... Summer Air Conditioning Duct Design for Residential ACCA Manual D Winter and Summer Air Conditioning and Equipment Selection For more information contact these publishers ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave N W Washington DC 20009 Telephone 202 483 9370 Fax 202 234 4721 ANSI American National Standards Institute 11 West Street 13th Floor New York NY 10036 Telephone...

Page 4: ... 5 0 4 5 0 0 4 8 3 2 6 3 0 0 2 1 5 2 1 3 0 0 4 8 3 3 7 1 0 0 0 7 4 MODEL NUMBER CONTROL MODULES See Chart Below VOLTS PHASE A 230 208 60 1 B 230 208 60 3 C 460 60 3 REVISIONS KW VENTILATION OPTIONS X Barometric Fresh Air Damper Standard B Blank off Plate M Motorized Fresh Air Damper V Commercial Ventilator Motorized with Exhaust E Economizer Internal Fully Modulating with Exhaust R Energy Recovery...

Page 5: ...e H H y l p p u S n r u t e R E F G I J K L M N O P Q R S T A B C B 2 4 L W 8 4 L W 0 6 L W 5 7 0 2 4 2 3 4 2 2 5 7 8 4 8 8 8 9 8 8 9 2 8 8 5 1 8 8 9 2 8 8 3 4 0 1 9 1 6 6 1 3 0 0 0 3 8 6 2 3 4 9 6 2 9 6 4 3 3 4 2 3 7 3 3 8 8 2 4 8 8 3 2 0 0 0 1 4 4 1 0 0 6 1 8 8 1 FRONT VIEW LEFT SIDE VIEW BACK VIEW ...

Page 6: ... 4 L W 9 0 B 5 1 B 3 8 0 2 0 3 2 1 1 1 4 2 4 3 2 5 5 3 5 3 0 5 8 8 6 0 1 0 1 0 1 A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N Z 0 C 0 0 C 1 2 4 L W 9 0 C 5 1 C 3 0 6 4 1 1 1 2 1 7 1 6 2 5 1 0 2 0 3 4 1 2 1 0 1 4 1 2 1 0 1 A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N Z 0 A 0 0 A 2 8 4 L W 5 0 A 0 1...

Page 7: ...al regulations are at a variance with instructions installer should adhere to local codes DUCT WORK All duct work supply and return must be properly sized for the design air flow 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 should be properly insulated in order to both...

Page 8: ...ch throwaway filter is supplied with each unit The filter slides into position making it easy to service This filter can be serviced from the outside by removing the service door A one inch washable filter and two inch pleated filter are also available as optional accessories The internal filter brackets are adjustable to accommodate the two inch filter by loosening two 2 screws on each bracket as...

Page 9: ...al If a combustible wall use a minimum of 30 1 2 x 10 1 2 dimensions for sizing However it is generally recommended that a 1 inch clearance is used for ease of installation and maintaining the required clearance to combustible material The supply air opening would then be 32 x 12 See Figures 3 and 4 for details 3 Locate and mark lag bolt locations and bottom mounting bracket location See Figure 3 ...

Page 10: ...Manual 2100 277 Page 10 FIGURE 3 MOUNTING INSTRUCTIONS MIS 947 ...

Page 11: ...of ducting It is important to insure that the 1 4 inch minimum spacing is maintained at all points Failure to do this could result in overheating the combustible material and may result in a fire causing damage injury or death FIGURE 4 ELECTRIC HEAT CLEARANCE SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1 4 INCH CLEARANCE TO COMBUSTIBLE SURFACES MIS 277 ...

Page 12: ...TURE FACTORY SUPPLIED RAIN FLASHING MOUNT ON UNIT BEFORE INSTALLATION SEE UNIT DIMENSIONS FIGURE 1 FOR ACTUAL DIMENSIONS ATTACH TO TOP PLATE OF WALL 1 000 CLEARANCE ALL AROUND 1 000 CLEARANCE ALL AROUND EXTERIOR FINISHED WALL OVER FRAME ATTACH TO BOTTOM PLATE OF WALL FRAMING MATERIAL 2 X 4 S 2 X 6 S AND OR STRUCTURAL STEEL THIS STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL A SEC...

Page 13: ...Manual 2100 277 Page 13 FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS FREE AIR FLOW NO DUCT DUCTED SUPPLY RETURN AT UNIT FALSE WALL INSTALLATION CLOSET INSTALLATION MIS 1050 ...

Page 14: ...ng entry See Start Up section for important information on three phase scroll compressor start ups Five 5 wires should be run from thermostat subbase to the 24V terminal board in the unit A five conductor 18 gauge copper color coded thermostat cable is recommended The connection points are shown in Figure 8 WIRING LOW VOLTAGE WIRING 230 208V 1 phase and 3 phase equipment dual primary voltage trans...

Page 15: ...Manual 2100 277 Page 15 FIGURE 8 UNIT 24V TERMINAL BOARD MIS 1373 ...

Page 16: ...ermit it can be reconnected to low speed red wire for lower sound level See wiring diagram 50 HZ models must have fan wired on low speed These models are factory wired on low speed START UP IMPORTANT INSTALLER NOTE For improved start up performance wash the indoor coil with a dish washing detergent CRANKCASE HEATERS WL421 units are provided with compressor crankcase heat WL602 and WL482 units are ...

Page 17: ...es at thermostat pulling in compressor contactor starting the compressor and outdoor motor The G indoor motor circuit is automatically completed on any call for cooling operation or can be energized by manual fan switch on subbase of constant air circulation On all 230 volt units there is a one minute off delay on the blower motor 460 volt models do not have an off delay On a call for heating circ...

Page 18: ...OB set at 2 minutes and DOM is 132 seconds Unit No 2 DOB set at 4 minutes and DOM is 144 seconds PRESSURE SERVICE PORTS High and low pressure service ports are installed on all units so that the system operating pressures can be observed A pressure table can be found later in the manual covering all models It is imperative to match the correct pressure table to the unit by model number PHASE MONIT...

Page 19: ...RIGERANT CHARGE l e d o M d e t a R w o l f r i A D O 5 9 e r u t a r e p m e T D O 2 8 e r u t a r e p m e T 1 2 4 L W 0 0 4 1 4 5 2 5 6 6 4 6 2 8 4 L W 0 5 5 1 6 5 4 5 7 6 5 6 2 0 6 L W 0 0 7 1 5 5 3 5 2 6 0 6 TABLE 7 INDOOR BLOWER PERFORMANCE CFM 230V P S E H n I 2 0 2 8 4 L W 1 2 4 L W 2 0 6 L W V 0 3 2 w o L V 0 3 2 h g i H V 0 3 2 w o L V 0 3 2 h g i H l i o C y r D l i o C t e W l i o C y r...

Page 20: ...RESSURE TABLE COOLING Air Temperature Entering Outdoor Coil F l e d o M r i A n r u t e R e r u t a r e p m e T e r u s s e r P 5 7 0 8 5 8 0 9 5 9 0 0 1 5 0 1 0 1 1 5 1 1 1 2 4 L W B D g e d 5 7 B W g e d 2 6 e d i S w o L e d i S h g i H 8 6 3 1 2 1 7 8 2 2 4 7 3 4 2 6 7 9 5 2 8 7 4 7 2 0 8 0 9 2 1 8 5 0 3 3 8 1 2 3 4 8 7 3 3 B D g e d 0 8 B W g e d 7 6 e d i S w o L e d i S h g i H 2 7 8 1 2 6 ...

Page 21: ...a l i t n e V l a i c r e m m o C t s u a h x E h t i w r e z i m o n o c E X X X X X X X X X X X X X X X X X X 6 A M C A 0 1 A M C C A L l o r t n o C t n e i b m A w o L R D T C P H C P L X X X X X X X X X A 3 1 A M C 5 1 C M C 6 1 A M C y a l e R m r a l A R D T C P H C P L t i K t r a t S l o r t n o C e u s s e r P w o L X X X X X X X X X 8 1 A M C C A L C P L X X X X X B 5 0 B C M W C 1 0 D ...

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