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INSTALLATION INSTRUCTIONS
PACKAGED AIR CONDITIONER
I30A1DA
I36A1DA
I36A1DB
I30A1DB
I30A1DC
I36A1DC
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
I-TEC
SERIES
®
Models:
I42A1DA
I42A1DB
I42A1DC
I48A1DA
I60A1DA
I48A1DB
I60A1DB
I48A1DC
I60A1DC
MIS-2957 A
Manual:
Supersedes:
Date:
Page
2100-597G
2100-597F
5-18-16
1 of 68
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Summary of Contents for Bard I30A1DA
- Page 1 ® PACKAGED AIR CONDITIONER Models: I30A1DA I36A1DA I42A1DA I48A1DA I60A1DA I36A1DB I42A1DB I48A1DB I60A1DB I30A1DB I30A1DC I36A1DC I42A1DC I48A1DC I60A1DC MIS-2957 A Bard Manufacturing Company, Inc. Manual: 2100-597G Supersedes: 2100-597F Bryan, Ohio 43506 Date: 5-18-16 www.bardhvac.com Page 1 of 68...
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Page 2: Table Of Contents
Changing Ventilation CFM Rates in Manual Mode ..42 Unit Removal From Skid ...........9 Changing to Fully Modulating Mode ......42 Handling Unit After Removal From Skid .....9 Configuring Bard Part #8403-067 CO Control Required Steps After Final Placement ......10 for CRV Modulating Control ........46 Minimum Installation Height ........10... - Page 3 Tables Figures Table 1A Factory Built-In Electric Heat Table ..6 Figure 1 Unit Dimensions ........8 Table 1B Indoor Blower Performance ..... 6 Figure 2A Unit on Lift ........... 9 Table 2 Electrical Specifications ......7 Figure 2B Unit Side ..........9 Table 3 Operating Voltage Range .......
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Page 4: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the For more information, contact these publishers: furnace. They can usually be found at the local library ACCA Air Conditioning Contractors of America or purchased directly from the publisher. Be sure to 1712 New Hampshire Avenue consult the current edition of each standard. -
Page 5: General
See Page 3 for information on codes and standards. The I-TEC must be installed with the Bard manufactured IWS wall sleeve and ILG louver Size of unit for a proposed installation should be based grille accessories. These are sold as separate on heat loss or heat gain calculation made according accessories. -
Page 6: I-Tec General Information
3 – Phenolic Coated ID & OD Coil R – ERV TABLE 1A Factory Built-In Electric Heat Table I36A1DA I36A1DB I36A1DC I48A1DB I48A1DC Models I30A1DA I30A1DB I30A1DC I48A1DA I60A1DA I42A1DA I42A1DB I42A1DC I60A1DB I60A1DC 240V-1 208V-1 240V-3 208V-3 460V-3 240V-1 208V-1 240V-3 208V-3 460V-3 240V-1 208V-1 240V-3 208V-3 460V-3 240V-1 208V-1... -
Page 7: Electrical Specifications
TABLE 2 Electrical Specifications Single Circuit Dual Circuit Rated Maximum Minimum Maximum No. Field Minimum Field Field Power Ground Wire MODEL Volts, Hertz External Ground Circuit External Fuse or Power Circuit Power Wire Wire Size Size & Phase Ampacity Ckt. Breaker Fuse or Ckt. -
Page 8: Figure 1 Unit Dimensions
Manual 2100-597G Page 8 of 68... -
Page 9: Shipping Damage
SHIPPING DAMAGE HANDLING UNIT AFTER REMOVAL FROM SKID Upon receipt of equipment, the unit should be checked for external signs of shipping damage. The skid must If a wide and tall enough opening exists, the I-TEC can remain attached until the unit is ready for installation. be moved as a complete assembled unit. -
Page 10: Required Steps After Final Placement
9. Move the top section through the doorway and The IWS Series wall sleeve has a built-in vertical place on flat surface free of debris. adjustment to fit window sill heights from 31-34". If additional height is required, two riser platform 10. - Page 11 Wall Section View Bracket Wall Section View Optional Duct Optional Top 3" Outside Bracket " Ceiling Wall (4) optional Unit Mounting holes Optional Telescoping " 20 " 6" Trim or Wall Sleeve** Supply Duct Sleeve Mounting Hole Locations Centered on Centered Opening Outside...
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Page 12: Figure 3 Center Of Gravity
FLOOR TO CENTER FLOOR TO CENTER DOOR TO CENTER TO CENTER CRV & ERV NO VENT UNIT TESTED "X" Dimension "Y" Dimension "Z" Dimension "Z" Dimension I30A1DA, DB 13-3/4" 24" 43½" 47" I30A1DC 13-3/4" 24¼" 43½" 47" I36A1DA, DB 13-3/4"... -
Page 13: Figure 4 Req'd Clearances & Recomm. Access
FIGURE 4 Required Clearances and Recommended Access WING WALL CONSTRUCTION TOP VIEW IMPORTANT Unit can be located in corner with 0" clearance as long as other side is unobstructed 12" MIN. 12" MIN. CLOSET CONSTRUCTION TOP VIEW 31 3/8" 12" MIN. 12"... -
Page 14: Figure 5 Removal Of Air Duct
FIGURE 5 Removal of Air Duct CRV/ERV AIR DUCT FIGURE 6 Compressor Shipping Bolts COMPRESSOR SHIPPING BOLT COMPRESSOR SHIPPING BOLT Manual 2100-597G Page 14 of 68... -
Page 15: Figure 7A Ducted Application
FIGURE 7A Ducted Application – Basic Unit Manual 2100-597G Page 15 of 68... -
Page 16: Figure 7B 3" Riser Application
FIGURE 7B 3" Riser Application Manual 2100-597G Page 16 of 68... -
Page 17: Figure 7C 6" Riser Application
FIGURE 7C 6" Riser Application Manual 2100-597G Page 17 of 68... -
Page 18: Duct Work
DUCT WORK install (10'-5" with IRP3 riser and 10'-8" with IRP6 riser). It can be trimmed in the field for installations All duct work must be properly sized for the design that require less than 10'-2". airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide The unit is equipped with a variable speed indoor to proper sizing. -
Page 19: Condensate Drain
CONDENSATE DRAIN WITH COMMERCIAL ROOM VENTILATOR There are two condensate drain connections from the 1. Open hinged front doors. condenser drain pan (compressor area). These are 2. Disconnect unit power to eliminate shock hazard. visible from the rear of the unit. Factory-installed tubing 3. -
Page 20: Figure 11A Unit Mounting
FIGURE 11A Unit Mounting Use (12) Field Supplied Concrete Use (12) 3/4" Long or Wood Screws to Secure Outer IMPORTANT! Self Tapping Screws Sleeve to Structure. REF. Apply Caulk bead to to Attach Inner Sleeve entire perimeter seam IMPORTANT! to Unit Back between inner and Apply liberal amount outer sleeve. -
Page 21: Figure 11B Unit Mounting
FIGURE 11B Unit Mounting INSIDE WALL (SIZE VARIES) OUTSIDE WALL FILL INSULATION OUTDOOR GRILLE I-TEC UNIT SLEEVE FILL INSULATION INTERIOR FLOOR MIS-2928 A Manual 2100-597G Page 21 of 68... -
Page 22: Installation Instructions
INSTALLATION WIRING – MAIN POWER MOUNTING THE UNIT The wall sleeve is attached to the I-TEC unit from the Refer to the unit rating plate and/or Table 2 on page 6 outside of the building. See Figures 9A and 9B. Refer for wire sizing information and maximum fuse or circuit breaker size. -
Page 23: Wiring - Low Voltage Wiring
WIRING – LOW VOLTAGE WIRING “Y2” terminal is the compressor full load input. “R” terminal is 24 VAC hot. 230/208V, 1 PHASE AND 3 PHASE EQUIPMENT DUAL PRIMARY VOLTAGE TRANSFORMERS “C” terminal is 24 VAC grounded. All equipment leaves the factory wired on 240V tap. “L”... -
Page 24: Figure 13 Basic A/C W/No Vent Pkg ("X" Vent)
W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 B/W1 Voltage Term. Strip Factory installed jumper. Remove jumper and connect to N.C fire alarm 2 Not needed below 15KW Additional wire required for dehumidification models MIS-3257 A Relay Provided with Completestat... -
Page 25: Figure 14 A/C W/Crv, Without Co 2 Control ("M" Vent)
W1/E W1/E W1/E W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 B/W1 Voltage Term. Strip RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE CRV Wiring Harness Factory installed jumper. Remove jumper and connect Connect to "G" terminal when thermostat has "Occupancy Signal". -
Page 26: Figure 15 A/C With Crv & Co Control ("M" Vent)
W1/E W1/E W1/E W1/E W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 NOTE: Bard 8403-060 thermostat must be in programmed operation mode and in programmed fan mode for ventilation to function. B/W1 Voltage Term. Strip RED/WHITE BLACK/WHITE ORANGE... -
Page 27: Figure 16 A/C With Erv, W/O Co 2 Control ("R" Vent)
W1/E W1/E W1/E W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 NOTE: Bard 8403-060 thermostat must be in programmed operation mode and in programmed fan mode for ventilation to function. B/W1 Voltage Term. Strip RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE... -
Page 28: Figure 17 A/C With Erv & Co Control ("R" Vent)
W1/E W1/E W1/E W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 NOTE: Bard 8403-060 thermostat must be in programmed operation mode and in programmed fan mode for ventilation to function. B/W1 Voltage Term. Strip RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE... -
Page 29: Figure 18 Hp W/Erv & Co Control (Fully Mod.) ("R" Vent) And Hp W/Mod. Crv ("Q" Vent)
W1/E W1/E W1/E W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 NOTE: Bard 8403-060 thermostat must be in programmed operation mode and in programmed fan mode for ventilation to function. B/W1 Voltage Term. Strip RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE... -
Page 30: Figure 19 Hp W/Comb. Crv & Db Econ. ("N" Vent)
FIGURE 19 Heat Pump with Combination CRV and DB Economizer (“N” Vent Code) Only Recommend Bard CS9B-THOC or CS9BE-THOC as Require 3 Heating/Cooling Stages Completestat Model #CS9B-THOC or Model #CS9BE-THOC W1/E Yellow Blue Orange White B/W1 Voltage Term. Strip RED/WHITE... -
Page 31: Start Up
7. Never fill cylinders over 80% of total capacity. TOPPING OFF SYSTEM CHARGE 8. Store cylinders in a cool area, out of direct If a leak has occurred in the system, Bard sunlight. Manufacturing recommends reclaiming, evacuating (see 9. Never heat cylinders above 125°F. -
Page 32: Description Of Standard Equipment
DESCRIPTION OF STANDARD However, three phase compressors will rotate in either direction depending upon phasing of the power. EQUIPMENT Since there is a 50-50 chance of connecting power High/Low Pressure Switch in such a way as to cause rotation in the reverse Provides refrigerant circuit high pressure and loss of direction, verification of proper rotation must be made. -
Page 33: Sequence Of Operation
SEQUENCE OF OPERATION Low Pressure Switch, Bypass and Lockout Sequence If the low pressure switch opens for more than 120 COOLING PART LOAD – Circuit R-Y1 makes at seconds, the compressor contactor will de-energize thermostat pulling in compressor contactor, starting and go into a soft lockout. -
Page 34: Lowering Outdoor Fan Speed For Sound
WARNING! Do NOT use a Schrader valve core removal tool with these valves. Use of such a tool could result in eye injuries or refrigerant burns! To change a Coremax valve without first removing the refrigerant, a special tool is required which can be obtained at www.fastestinc.com/en/SCCA07H. -
Page 35: I-Tec Commercial Room Ventilator System (Vent Code "M")
(VENT CODE "M") GENERAL DESCRIPTION The I-TEC Commercial Room Ventilator (CRV) is designed to be used with all Bard I-TEC models. The Operating the I-TEC CRV during unoccupied periods can only intent of this device is to provide the required result in a build up of excess moisture in the structure. -
Page 36: Figure 20 Crv Motor Speed/Cfm Configuration
corresponding CFM needed for the intake and exhaust 1. Open front swinging doors of main unit (by popping blowers to meet the design criteria and determine front door latches). which “speed/wire color” is needed. Then, perform the 2. Throw main power disconnect to the “OFF” following steps. -
Page 37: Figure 21 Crv Speed Change Terminal Access
FIGURE 21 CRV Speed Change Terminal Access CRV INTAKE BLOWER NOTE: CRV EXHAUST BLOWER IS BEHIND INTAKE BLOWER REMOVE (5) SCREWS FROM CRV DOOR TO ACCESS CRV COMPONENTS MIS-3023 BLOWER SPEED CONTROL LOCATION BLOWER SPEED CONTROL BLOWER REMOVED FOR CLARITY Manual 2100-597G Page 37 of 68... -
Page 38: I-Tec Combination Crv And Economizer Ventilation System (Vent Code "N")
The I-TEC Combination Commercial Room Ventilator by disposable filters and the intake air blowers are (CRV) and Dry Bulb Economizer is designed to be used with all Bard I-TEC models. This ventilation package protected by washable filters. Both are accessible without the need for tools. -
Page 39: Setting The Ventilation Cfm Levels
SETTING THE VENTILATION CFM Perform the following steps: LEVELS 1. Open front swinging doors of main unit (by popping front door latches). The I-TEC CRV has four pre-set levels of ventilation CFM available. These are 300, 375, 450 and 525 2. -
Page 40: I-Tec Economizer Sequence Of Operation
I-TEC ECONOMIZER SEQUENCE OF • “Y1” thermostat signal powers relay coil “R3” through now closed relay contacts “R2” closing OPERATION contacts between “R” and “Y2” at low voltage If Outdoor Temperature is Below Outdoor Thermostat terminal strip. Setpoint • “Y2” thermostat signal will do nothing, as NC On call from CompleteStat for first stage cooling: contacts of relay “R2”... -
Page 41: I-Tec Modulating Commercial Room Ventilator System (Vent Code "Q")
RECOMMENDED CONTROL SEQUENCES The I-TEC Commercial Room Ventilator (CRV) is designed to be used with all Bard I-TEC models. The Several possible scenarios are listed below: only intent of this device is to provide the required ventilation by delivering fresh air to meet IAQ (Indoor 1. -
Page 42: Changing Ventilation Cfm Rates In Manual Mode
2.336 7961-754-1 7961-754-1 7961-754-1 EXPOSED MOVING PARTS. EXPOSED MOVING PARTS. EXPOSED MOVING PARTS. DISCONNECT ALL ELECTRICAL DISCONNECT ALL ELECTRICAL DISCONNECT ALL ELECTRICAL CHANGING VENTILATION CFM RATES CHANGING TO FULLY MODULATING POWER BEFORE SERVICING. POWER BEFORE SERVICING. POWER BEFORE SERVICING. IN MANUAL MODE MODE FAILURE TO DO SO CAN RESULT FAILURE TO DO SO CAN RESULT... -
Page 43: Figure 24A Crv Manual Mode "M" Terminal
3 fast blinks of correlation to the CO2 levels you the "GREEN STATUS LIGHT".) 4.06 wish to control when Bard Part # 8403-067 CO2 Control is applied. 2.91 Motor Control Board, observing "GREEN STATUS l adjust potentiometer (with a small phillips-head 2.57... -
Page 44: Figure 25 Ventilation Airflow Diagram
FIGURE 25 Ventilation Airflow Diagram Supply Air SUPPLY BLOWER Return Air Outdoor Air VENT INTAKE BLOWER Indoor Air VENT EXHAUST BLOWER MIS-3024 Manual 2100-597G Page 44 of 68... -
Page 45: Figure 26 Crv Access
FIGURE 26 CRV Control Access CRV INTAKE BLOWER NOTE: CRV EXHAUST BLOWER IS BEHIND INTAKE BLOWER CRV DIFFUSER PLATES MIS-3846 REMOVE (5) SCREWS FROM CRV DOOR TO ACCESS CRV CRV CONTROL COMPONENTS PANEL LOCATION Manual 2100-597G Page 45 of 68... -
Page 46: Figure 27 Control Board Configuration/Setting
Automatic Baseline “FLOW INDEX”, CCW rotation increases the “FLOW INDEX”. CONFIGURING BARD PART #8403-067 Correction methods which can unintentionally shift the calibration based on CO pressure Dependence: 0.13% of reading per mm of Hg. -
Page 47: Manual 2100-597G
Thermistor and RTD passive outputs are located on the back plate and do not require BOTTOM TAB Use maximum 18 AWG wire for wiring to terminals. Refer to Figure 5 for wiring any power. Passive temperature outputs are not polarity sensitive. fIGURE 1: Removal Of Cover from Back plate SELF-LATCHING RECEIVER... -
Page 48: Manual 2100-597G
COH CO high output range Menu Descriptions Sets the CO concentration for the highest output RON Relay on setpoint (20 mA, 5 VDC or 10 VDC). When COH is set Sets the CO concentration which the optional above COL, the transmitter is direct acting and relay is energized. -
Page 49: I-Tec Energy Recovery Ventilator System (Vent Code "R")
CO control programmable electronic thermostat. to only bring in the minimal amount of ventilation 2. Install a Bard CompleteStat™ with occupancy required (helping to minimize sound levels and sensor which learns room usage and automatically ventilation load on the structure). -
Page 50: Changing Ventilation Cfm Rates In Manual Mode
5. Use a manual timer that the occupants turn to NOTE: After long pause, the green status light energize the ERV for a specific number of hours. will blink long-blinks for the “TEN COUNT” of the “FLOW RATE INDEX”, then immediately followed 6. -
Page 51: Manual 2100-597G
PERFORMANCE AND APPLICATION DATA Summer Cooling Performance (Indoor Design Conditions 75°DB/62°WB) Ambient VENTILATION RATE 450 CFM VENTILATION RATE 375 CFM VENTILATION RATE 300 CFM O.D. 65% EFFICIENCY 66% EFFICIENCY 67% EFFICIENCY DB/WB 75 21465 14580 6884 13952 9477 4475 17887 12150 5737 11805 8018... -
Page 52: Figure 28A Erv Manual Mode "M" Terminal
3 fast blinks of levels to be controlled the CO he "GREEN STATUS LIGHT".) 4.06 when Bard Part # 8403-067 CO Control is applied. 2.91 otor Control Board, observing "GREEN STATUS adjust potentiometer (with a small phillips-head 2.57... -
Page 53: Figure 29 Ventilation Airflow Diagram
FIGURE 29 Ventilation Airflow Diagram Supply Air SUPPLY BLOWER Return Air Outdoor Air VENT INTAKE BLOWER Indoor Air VENT EXHAUST BLOWER MIS-3024 Manual 2100-597G Page 53 of 68... -
Page 54: Figure 30 Erv Access
FIGURE 30 ERV Access ERV INTAKE BLOWER NOTE: ERV EXHAUST BLOWER IS BEHIND INTAKE BLOWER ERV CASSETTE ASSEMBLIES MIS-3025 REMOVE (5) SCREWS FROM ERV DOOR TO ACCESS ERV ERV CONTROL COMPONENTS PANEL LOCATION Manual 2100-597G Page 54 of 68... -
Page 55: Figure 31 Control Board Configuration/Setting
Menu items that can be accessed include: engineering units, relay output set points, Bard part #8403-067 carbon dioxide and temperature display configuration, transmitter output scaling, ambient barometric pressure and... - Page 56 fIGURE 1: Removal Of Cover from Back plate RELAY MOUNTING CONTACT 1. Push tab on bottom of cover and lift cover from back plate (See Figure 1). RELAY MOUNTING 2. Select the mounting location, away from diffusers, lights or any external CONTACT 1.
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Page 57: Energy Recovery Ventilator Maintenance
Temperature and barometric pressure Sets the typical barometric pressure for the measurements can be displayed in US location where the transmitter is mounted. engineering units or SI engineering units. The The factory setting is for standard pressure at factory default is to display US engineering sea level. -
Page 58: Manual 2100-597G
Proper cleaning of the Bard energy recovery Annual Maintenance wheel will restore latent effectiveness to near original 1. -
Page 59: Figure 32 Hub Assembly W/Ball Bearings
FIGURE 32 Hub Assembly with Ball Bearings Manual 2100-597G Page 59 of 68... -
Page 60: Troubleshooting
TROUBLESHOOTING CHECKING TEMPERATURE SENSOR 3. Check resistance reading to chart of resistance use sensor ambient temperature. (Tolerance of part is 1. Disconnect temperature sensor from board and ± 10%.) from right-hand outdoor coil. 4. If sensor resistance reads very low, sensor is 2. -
Page 61: Troubleshooting Condensate Overflow Systems
(See Sequence of Systems Operation on page 33.) The Bard I-TEC Series is equipped with dual The electronic switch for the outdoor drain pan has condensate overflow switches. One switch (float type) three LED lights giving a status update (see Figure 35). -
Page 62: Troubleshooting Ecm 142R Outdoor Fan Motors
High efficiency systems with optimized fan blades are engineered to run slow to decrease “Red Wire” connects to “L1” noise. The Bard I-TEC Series models also adjust “Black Wire” connects to “L2” fan speed based upon varied outdoor ambient “Green/Yellow Wire”... -
Page 63: Cooling Mode
TABLE 6 Troubleshooting ECM™ 142R Outdoor Fan Motor Check between red and black wires for line power Check line power to motor Verify ground by checking green eire to L1 and L2 line power Check "BR" terminal of fan logic control board Check for 24VAC common signal to motor Check "Blue"... -
Page 64: Troubleshooting Ecm™ Indoor Blower Motors
Troubleshooting ECM Indoor Blower Motors CAUTION: Symptom Cause/Procedure • Noisy blower or cabinet • Check for loose blower housing, panels, etc. Disconnect power from unit before removing or replacing • High static creating high blower speed? connectors, or servicing motor. To avoid electric shock - Check for air whistling through seams in from the motor’s capacitors, disconnect power and wait at ducts, cabinets or panels... -
Page 65: Figure 36 Control Disassembly
Replacing ECM Control Module 7. Verify that the replacement control is correct for your application. Refer to the manufacturer’s authorized replacement list. USING THE To replace the control module for the GE variable-speed indoor blower WRONG CONTROL WILL RESULT IN IMPROPER OR NO BLOWER motor you need to take the following steps: OPERATION. -
Page 66: Fan Blade Setting Dimensions
Troubleshooting ECM ™ Blower Motors Part Heat Pump Continuous Heat Pump Full Full Dehum. MODE of Part Load Full Load Load Full Load w/ Emergency Blower Load w/ 1st & Mode Load Heat (when OPERATION (Ventilation Cooling Cooling Heat 1st Bank of 2nd Bank of Heat Mode equipped) -
Page 67: Manual 2100-597G
TABLE 8 Full Load Cooling Pressure/Temperature AIR TEMPERATURE ENTERING OUTDOOR COIL °F Return Air Model Temp. Pressure 55° 60° 65° 70° 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 75° DB Low Side 62° WB High Side 80°... - Page 68 TABLE 9 Part Load Cooling Pressure/Temperature AIR TEMPERATURE ENTERING OUTDOOR COIL °F Return Air Model Temp. Pressure 55° 60° 65° 70° 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 75° DB Low Side 62° WB High Side 80°...
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