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Summary of Contents for Bard H24A4-A
- Page 1 INSTALLATION INSTRUCTIONS WALL MOUNTED PACKAGED AIR CONDITIONER Models: H24A4-A H24L4-A H36A4-A H36L4-A H42A4-A H42L4-A H48A4-A H48L4-A H60A4-A H60L4-A Bard Manufacturing Company, Inc. Manual: 2100-639A Bryan, Ohio 43506 Supersedes: 2100-639 Date: 7-27-16 www.bardhvac.com Page 1 of 28...
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Page 2: Table Of Contents
CONTENTS Start Up ..............15 Getting Other Information and Publications ..3 General ............15 Topping Off System Charge ......... 15 Wall Mount General Information ......4 Air Conditioner Wall Mount Model Nomenclature ..4 Safety Practices ..........15 Important Installer Note ........15 Shipping Damage .......... -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the For more information, contact these furnace. They can usually be found at the local library publishers: or purchased directly from the publisher. Be sure to consult the current edition of each standard. ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave. -
Page 4: Wall Mount General Information
WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE – CONTROL MODULES REVISIONS MODEL SERIES (See Spec. Sheet) CAPACITY 24 – 2 Ton COIL OPTIONS VOLTS & PHASE 36 – 3 Ton X – Standard A – 230/208/60/1 42 – 3½ Ton COLOR OPTIONS 1 –... -
Page 5: Duct Work
5/8". Any grille that meets with 5/8" louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2W thru RG5W or RFG2W thru RFG5W be installed when no return duct is used. Contact distributor or factory for ordering information. -
Page 6: Installation
INSTALLATION WALL MOUNTING INFORMATION Clearances Required for Service Access and Adequate Condenser Airflow 1. Two holes for the supply and return air openings must be cut through the wall as shown in Figure 2. LEFT RIGHT DISCHARGE MODELS SIDE SIDE SIDE 2. -
Page 7: Figure 1 Unit Dimensions
FIGURE 1 Dimensions of Basic Unit for Architectural & Installation Requirements (Nominal) SUPPLY RETURN WIDTH DEPTH HEIGHT MODEL H24A, L 33.300 17.125 70.563 7.88 19.88 11.88 19.88 35.00 11.00 25.75 20.56 26.75 28.06 29.25 27.00 2.63 34.13 22.06 10.55 4.19 12.00 5.00 H36A, L 38.200... -
Page 8: Figure 2A H24 Mounting Instructions
Manual 2100-639A Page 8 of 28... -
Page 9: Figure 2B H36 Mounting Instructions
Manual 2100-639A Page 9 of 28... -
Page 10: Figure 2C H42, 48, 60 Mounting Instructions
Manual 2100-639A Page 10 of 28... -
Page 11: Figure 3 Electric Heat Clearance
FIGURE 3 Electric Heat Clearance NOTE 1: SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4" CLEARANCE TO COMBUSTIBLE SURFACES. 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 ducting. -
Page 12: Figure 4 Wall Mounting Instructions
FIGURE 4 Wall Mounting Instructions WALL STRUCTURE FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR DUCT OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING OPENING BOTTOM MOUNTING WOOD OR STEEL SIDING BRACKET. -
Page 13: Wiring - Main Power
FIGURE 6 Common Wall Mounting Installations SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/ GRILLE RETURN AIR RETURN AIR OPENING W/ GRILLE... -
Page 14: Wiring - Low Voltage Wiring
WIRING – LOW VOLTAGE WIRING Filter Switch Adjustment 1. Turn off unit power. Low Voltage Connection 2. Remove upper front door. Front screws on unit top These units use a 24-volt AC low voltage circuit. can be removed for ease of removing upper front Tables 11 –... -
Page 15: Start Up
8. Store cylinders in a cool area, out of direct sunlight. TOPPING OFF SYSTEM CHARGE 9. Never heat cylinders above 125°F. If a leak has occurred in the system, Bard 10. Never trap liquid R-410A in manifold sets, gauge Manufacturing recommends reclaiming, evacuating lines or cylinders. R-410A expands significantly (see criteria above) and charging to the nameplate at warmer temperatures. -
Page 16: High Pressure Switch
HIGH PRESSURE AND LOW PRESSURE control module is an anti-short cycle/lockout timer with high and low pressure switch monitoring and alarm SWITCHES relay output. All H**A/H**L wall mounted air conditioner series models are supplied with a remote reset for the high Adjustable Delay-on-Make and Delay-on-Break Timer and low pressure switches. -
Page 17: Pressure Service Ports
Adjustments Typical Settings for Dual Unit Installation: Adjustable Delay-on-Make and Delay-on-Break Timer Unit 1: DOB set at 2 minutes and DOM is 132 seconds Unit 2: DOB set at 4 minutes and DOM is 144 seconds The potentiometer is used to select delay-on-break time from 30 seconds to 5 minutes. -
Page 18: Figure 7 Fan Blade Setting
SERVICE REMOVAL OF FAN SHROUD FAN BLADE SETTING DIMENSIONS 1. Disconnect all power to the unit. The correct fan blade setting for proper air delivery across the outdoor coil is shown in Figure 7. Refer to 2. Remove the screws holding both grilles, one on Table 2 for unit specific dimension. -
Page 19: Table 3 Cooling Pressure
TABLE 3 Cooling Pressure Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side H24A/L 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side H36A/L 80/67 High Side Low Side... -
Page 20: Table 4A Electrical Specifications H**A Series
TABLE 4A Electrical Specifications H**A Series Single Circuit Dual Circuit Minimum Maximum Rated Field Maximum Circuit External Fuse or Field Power Ground MODEL Volts & Minimum Field Power External Ground Ampacity Ckt. Breaker Wire Size Wire Size Phase... -
Page 21: Table 5 Recommended Airflow
TABLE 5 Recommended Airflow Nominal Nominal Recommended Factory Speed Model Rated Rated Airflow Range Connection CFM* ESP* H24A, H24L 700 - 950 Single H36A, H36L 1100 930 - 1350 High H42A, H42L 1400 1600 - 1150 High H48A, H48L 1550 1750 - 1285 High H60A, H60L... -
Page 22: Table 9 Optional Accessories
TABLE 9 Optional Accessories Right Hand Units Left Hand Units EHWA02-A05 EHWA02A-A05L EHW02A-A08 EHW02A-A08L EHWA02A-A10 EHWA02-A10L EHWA24-A04 EHWA03-A05L EHWA03-A05 Heater Kits EHWA03-A10L EHWA03-A08 EHWA03-A15L Heater Kits EHWA03-A10 EHWA05-A05L EHWA03-A15 EHWA05-A10L EHWA05-A05 EHWA05-A15L EHWA05-A10 WMCB-03A Circuit Breakers (WMCB) EHWA05-A15 WMCB-05A & EHWA05-A20 WMCB-08A Pull Disconnects... -
Page 23: Chart - Mv Series Controller
TABLE 11 Unit Low Voltage Terminal Connection Chart – MV Series Controller Series "2" Terminal Description MV Terminal Connection Reference Compressor on Output Signal from Jade to MV "A" on Relay Board "A" 24VAC HOT from Terminal 2 Connected to Unit Transformer to MV "R"... -
Page 24: Chart - Mc Series Controller
TABLE 12 Unit Low Voltage Terminal Connection Chart – MC Series Controller Series "2" Terminal Description MC Terminal Connection Reference Compressor on Output Signal from Jade to MC "A" on Relay Board "A" 24VAC HOT from Terminal 2 Connected to Unit Transformer to MC "R"... -
Page 25: Chart - Cooling/Heating Thermostat
TABLE 13 Unit Low Voltage Terminal Connection Chart – Cooling/Heating Thermostat Series "2" Terminal Description MC Terminal Connection Reference Compressor on Output Signal from Jade Not Used "A" 24VAC HOT from Terminal 2 Connected to Unit Transformer to Thermostat "R" on Tstat "R"... -
Page 26: Figure 8A H**4 Wiring Diagram - Top
FIGURE 8A H**4 Wiring Diagram – Top Manual 2100-639A Page 26 of 28... -
Page 27: Figure 8B H**4 Wiring Diagram - Bottom
FIGURE 8B H**4 Wiring Diagram – Bottom Manual 2100-639A Page 27 of 28... -
Page 28: Figure 9 H**4 Low Voltage Diagram For Unit And Mv Connections
FIGURE 9 H**4 Low Voltage Ladder Diagram for Unit and MV Connections Blk/Wht Filter Light Pin 6 on Vent Plug Low Voltage Pin 9 on Vent Plug Terminal Strip Controller Rd/W Bk/W R on Filter Red/Wht Compressor Switch Control Module Filter Reset Button Org/Blk Red/Wht...
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