Bard I-TEC Series Installation Instructions Manual
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Summary of Contents for Bard I-TEC Series
- Page 1 INSTALLATION INSTRUCTIONS I-TEC SERIES PACKAGED HEAT PUMP Models: I48Z1-A I60Z1-A I36Z1-A I48Z1-B I60Z1-B I36Z1-B I48Z1-C I60Z1-C I36Z1-C MIS-3116 Bard Manufacturing Company, Inc. Manual: 2100-578L Bryan, Ohio 43506 Supersedes: 2100-578K Date: 1-31-19 www.bardhvac.com Page 1 of 42...
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Page 2: Table Of Contents
General ..............4 General ..............25 ANSI Z535.5 Definitions ...........4 Topping Off System Charge ........25 Safety Practices .............25 I-TEC Series General Information ......5 Description of Standard Equipment ......26 I-TEC Model Nomenclature ........5 Important Installer Note ..........26 Shipping Damage .............8 Phase Monitor ............26 Unit Removal From Skid ...........8... -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help when installing the air For more information, contact these publishers: conditioner or heat pump. They can usually be found at the local library or purchase them directly from the ACCA Air Conditioning Contractors of America publisher. -
Page 4: 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 5: I-Tec Series General Information
I-TEC Series General Information I-TEC MODEL NOMENCLATURE Z-Version (CA) 2-Stage Air Source Heat Pumps – CONTROLS MODEL COLOR OPTIONS SYSTEM TYPE – 24V Terminal Block Only w/o ELECTRIC HEAT SERIES X – Beige paint H/P CA Design CompleteStat 0Z – No heat w/breaker 1 –... -
Page 6: Table 3 Table
TABLE 2 Electrical Specifications Single Circuit Multiple Circuit Rated Minimum Maximum Field Power Ground Wire Maximum Volts, Circuit External Fuse Minimum Field MODEL Wire Size Size Field External Ground Hertz & Ampacity or Ckt. Breaker Circuit Power Power Fuse or Wire Phase Ampacity... -
Page 7: Figure 1 Unit Dimensions
Manual 2100-578L Page 7 of 42... -
Page 8: Shipping Damage
Center of Gravity CENTER OF GRAVITY "Z" "X" "Y" MIS-3268 FRONT OF UNIT LEFT SIDE FLOOR TO CENTER FLOOR TO CENTER DOOR TO CENTER TO CENTER CRV & ERV NO VENT Unit Tested MIS-3268 "X" Dimension "Y" Dimension "Z" Dimension "Z"... -
Page 9: Handling Unit After Removal From Skid
HANDLING UNIT AFTER REMOVAL FROM 4. On each side of the unit is a tie plate that secures the top and bottom sections with four (4) cap SKID bolts. Using a ½" wrench or socket, remove these If a wide and tall opening exists, the I-TEC can be screws from both plates and set aside. -
Page 10: Required Steps After Final Placement
REQUIRED STEPS AFTER FINAL SECURING UNIT TO STRUCTURE PLACEMENT Shipped with the I-TEC unit is a wall mounting bracket (screwed to shipping skid on backside of unit). This The compressor is secured to the base with two (2) bracket can be utilized to secure the top portion of the bolts for shipping. -
Page 11: Bracket Wall Section View
Wall Section View Bracket Wall Section View Right Side View Front (Wall Only) View Wood Framed Installation (for Wall Attachment) 41.75 Inner wall (4) Upper fastener holes 6.00 Unit (4) lower fastener holes 56.50 30.06 20.88 36.88 Floor * Height dimension shown without riser kit. -
Page 12: Figure 3 Compressor Shipping Bolts
FIGURE 3 Compressor Shipping Bolts COMPRESSOR SHIPPING BOLT COMPRESSOR SHIPPING BOLT FIGURE 4 Removal of Air Duct AIR DUCT Manual 2100-578L Page 12 of 42... -
Page 13: Figure 5A Ducted Application
FIGURE 5A Ducted Application – Basic Unit FIELD SUPPLIED DUCT BOTTOM OF ROOF TURNING VANES OR FIXED CEILING RECOMMENDED 12" SUSPENDED 20" CEILING MINIMUM MINIMUM 4" MINIMUM FROM TOP OF UNIT TO DUCT BOTTOM 9'-2" 9'-7" MINIMUM MINIMUM CLEARANCE 7'-9 3/4" REQUIRED RECOMMENDED TO UNIT HEIGHT... -
Page 14: Figure 5C 6" Riser Application
FIGURE 5C 6" Riser Application FIELD SUPPLIED DUCT BOTTOM OF ROOF TURNING VANES OR FIXED CEILING RECOMMENDED 12" SUSPENDED 20" CEILING MINIMUM MINIMUM 4" MINIMUM FROM TOP OF UNIT TO DUCT BOTTOM 10'-1" MINIMUM CLEARANCE 7'-9 3/4" 9'-8" RECOMMENDED TO UNIT HEIGHT MINIMUM BOTTOM OF ROOF... -
Page 15: Figure 5D Required Clearances And Recommended Access
FIGURE 5D Required Clearances and Recommended Access WING WALL CONSTRUCTION TOP VIEW 12" MIN. 61 1/2" 12" MIN. CLOSET CONSTRUCTION TOP VIEW 61 1/2" 31 3/8" 12" 12" MIN. MIN. 12" MIN. 12" MIN. RECOMMENDED SERVICE ACCESS DIMENSIONS 12" MIN. 12"... -
Page 16: Duct Work
If a CRV vent option is used, there are two additional 1" throw away filters included with that The I-TEC series heat pump has provision to attach a option. See Figure 7 for specific locations. The filters supply air duct to the top of the unit. Duct connection are serviced from the inside of the building by opening size is 20"... -
Page 17: Condensate Drain
CONDENSATE DRAIN After drain installation is complete, drain area must be insulated for sound purposes with 45" x 24¾" x 6" There are two condensate drain connections from the piece of insulation. See Figure 8. condenser drain pan (compressor area). These are visible from the rear of the unit. -
Page 18: Figure 9A Unit Mounting
FIGURE 9A Unit Mounting Use (12) Field Supplied Concrete Use (12) 3/4" Long or Wood Screws to Secure Outer IMPORTANT! Self Tapping Screws REF. Sleeve to Structure. Apply Caulk bead to to Attach Inner Sleeve entire perimeter seam IMPORTANT! to Unit Back between inner and Apply liberal amount outer sleeve. -
Page 19: Figure 9B Unit Mounting
FIGURE 9B Unit Mounting INSIDE WALL (SIZE VARIES) OUTSIDE WALL (INSULATED) AREA BETWEEN WALL AND SLEEVE (INSULATED) OUTDOOR GRILLE UNIT SLEEVE FILL INSULATION DRAIN AREA INTERIOR FLOOR (INSULATED WITH 6" BATT MATERIAL) MIS-3201 A NOTICE: In order to achieve optimum sound reduction, the following areas need insulated: 1. -
Page 20: Installation
INSTALLATION MOUNTING THE UNIT The unit rating plate lists a “Maximum Time Delay Relay Fuse” or circuit breaker that is to be used with the The wall sleeve is attached to the I-TEC unit from the equipment. The correct size must be used for proper outside of the building. -
Page 21: Low Voltage Connections
The standard unit includes a remote thermostat condensate overflow trip by the electronic heat pump control. This is a 24 VAC output. connection terminal strip. See Figures 11 through 16 for connection diagrams. Compatible thermostats are “W2” terminal is first stage electric heat (if equipped). listed in Table 4. -
Page 22: Figure 11 Basic Heat Pump W/No Vent Pkg
Model #CS9B-THO or Model #CS9BE-THO W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 Thermostat Bard #8403-084 B/W1 Voltage Term. Strip Factory installed jumper. Remove jumper and connect to N.C fire alarm Not needed below 15KW Relay Provided with Completestat... -
Page 23: Control
Control Completestat Model #CS9B-THO or Model #CS9BE-THO W1/E Yellow Blue Orange White Thermostat W1/E YO/D Bard #8403-060 Thermostat Bard #8403-084 B/W1 Voltage Term. Strip RED/WHITE BLACK/WHITE ORANGE BROWN/WHITE CRV Wiring Harness Install a jumper between "G" and "A" only when thermostat Factory installed jumper. -
Page 24: Control
Yellow Blue Orange White Thermostat Thermostat W1/E W1/E YO/D YO/D Bard #8403-060 Bard #8403-060 NOTE: Bard 8403-060 thermostat must be in programmed operation mode and in programmed Thermostat fan mode for ventilation to Bard #8403-084 function. B/W1 Voltage Term. Strip... -
Page 25: 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 26: Description Of Standard Equipment
DESCRIPTION OF STANDARD Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse EQUIPMENT direction, verification of proper rotation must be made. Solid State Electronic Heat Pump Control Verification of proper rotation direction is made by Provides efficient 30-, 60- or 90-minute defrost cycle. -
Page 27: Sequence Of Operation
SEQUENCE OF OPERATION PRESSURE SERVICE PORTS High and low pressure service ports are installed on COOLING PART LOAD – Circuit R-Y1 makes at thermostat pulling in compressor contactor, starting all units so that the system operating pressures can be the compressor and outdoor motor. The G (indoor observed. -
Page 28: Figure 12 Heat Pump W/Crv, Without Co Figure 13 Heat Pump With Crv & Co Figure 14 Heat Pump Control Defrost Cycle
DEFROST CYCLE There is an initiate defrost jumper (SEN JMP) on the control that can be used at any outdoor ambient during The defrost cycle is controlled by temperature and time the heating cycle to simulate a 0° coil temperature. on the solid state heat pump control. -
Page 29: I-Tec Commercial Room Ventilator System
I-TEC COMMERCIAL ROOM VENTILATOR SYSTEM GENERAL DESCRIPTION The I-TEC Commercial Room Ventilator (CRV) is designed to be used with all Bard I-TEC models. The only intent of this device is to provide the required Operating the I-TEC CRV during unoccupied periods can ventilation by delivering fresh air to meet IAQ (Indoor result in a build up of excess moisture in the structure. -
Page 30: Figure 15 Crv Motor Speed/Cfm Configuration
1. Open front swinging doors of main unit (by popping 4. Locate brown wire with white trace that has a front door latches). black terminal on the end where it connects to the 2. Throw main power disconnect to the “OFF” terminal strip (See Figure 15). -
Page 31: Figure 16 Crv Speed Change Terminal Access
FIGURE 16 CRV Speed Change Terminal Access CRV INTAKE BLOWER NOTE: CRV EXHAUST BLOWER IS BEHIND INTAKE BLOWER REMOVE (9) SCREWS FROM CRV DOOR TO ACCESS CRV COMPONENTS BLOWER SPEED CONTROL LOCATION MIS-3207 A BLOWER REMOVED BLOWER FOR CLARITY SPEED CONTROL Manual 2100-578L Page... -
Page 32: Figure 17 Ventilation Airflow Diagram
FIGURE 17 Ventilation Airflow Diagram Supply Air SUPPLY BLOWER Return Air Outdoor Air VENT INTAKE BLOWER VENT EXHAUST BLOWER Indoor Air MIS-3208 Manual 2100-578L Page 32 of 42... -
Page 33: Troubleshooting
TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL NOTE: If there was no power to 24 volt transformer, the compressor and outdoor fan motor will not 1. NOTE: A thorough understanding of the defrost start for 5 minutes. This is because of the cycle sequence is essential. -
Page 34: Table 5 Table
CHECKING TEMPERATURE SENSOR 4. If sensor resistance reads very low, then sensor is shorted and will not allow proper operation of the 1. Disconnect temperature sensor from board and heat pump control. from right-hand outdoor coil. 5. If sensor is out of tolerance, shorted, open or reads 2. -
Page 35: Figure 18 Indoor Condensate Overflow Switch
Systems The electronic switch for the outdoor drain pan has The Bard I-TEC Series is equipped with dual three LED lights giving a status update (see Figure 20). condensate overflow switches. One switch (float type) is located in the indoor drain pan. -
Page 36: Troubleshooting Ecm™ 142R Outdoor Fan Motors
TO CHANGE SPEEDS, MOVE BROWN noise. The Bard I-TEC Series models also adjust WIRE WITH WHITE TRACE. This motor uses a 7 wire harness to control the... -
Page 37: Troubleshooting Ecm™ 142R Outdoor Fan Motors
TABLE 7 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 Wire to L1 and L2 Line Power Check "BR" terminal of Fan Logic Control Board Check "Blue"... -
Page 38: Troubleshooting Ecm™ Indoor Blower Motors
Troubleshooting ECM Indoor Blower Motors CAUTION: Symptom Cause/Procedure Disconnect power from unit before removing or replacing • Noisy blower or cabinet • Check for loose blower housing, panels, etc. connectors, or servicing motor. To avoid electric shock • High static creating high blower speed? - Check for air whistling through seams in from the motor’s capacitors, disconnect power and wait at ducts, cabinets or panels... -
Page 39: Figure 21 Control Disassembly
Replacing ECM Control Module Verify that the replacement control is correct for your application. Refer to the manufacturer’s authorized To replace the control module for the GE variable-speed indoor replacement list. USING THE WRONG CONTROL WILL blower motor you need to take the following steps: RESULT IN IMPROPER OR NO BLOWER OPERATION. -
Page 40: Figure 24 Control Connector Motor Half
Troubleshooting ECM Indoor Blower Motors Part Heat Pump Continuous Heat Pump Full Dehum. Full MODE of Part Load Full Load Load Full Load w/ Emergency Blower Load w/ 1st & Mode Load Heat (when OPERATION Cooling Cooling Heat 1st Bank of 2nd Bank of Heat Mode (Ventilation... -
Page 41: Fan Blade Setting Dimensions
FAN BLADE SETTING DIMENSIONS REFRIGERANT CHARGE The position of the fan blade should be set at 2.75", This unit was charged at the factory with the quantity measuring from the motor mount to the closest point of refrigerant listed on the serial plate. AHRI capacity on the fan blade (as shown in Figure 25). -
Page 42: Table 10A Full Load Cooling
TABLE 10A – Full Load Cooling Pressure/Temperature 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° DB Low Side I36Z1 67°...