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AIR HANDLER
INSTALLATION INSTRUCTIONS
B64EM & B64VM SERIES
IMPORTANT
ATTENTION INSTALLERS:
It is your responsibility to know this product better than your customer. This includes being
able to install the product according to strict safety guidelines and instructing the customer on
how to operate and maintain the equipment for the life of the product. Safety should always be
the deciding factor when installing this product and using common sense plays an important
role as well. Pay attention to all safety warnings and any other special notes highlighted in the
manual. Improper installation of the furnace or failure to follow safety warnings could result in
serious injury, death, or property damage.
These instructions are primarily intended to assist qualified individuals experienced in the
proper installation of this appliance. Some local codes require licensed installation/service
personnel for this type of equipment. Please read all instructions carefully before starting the
installation. Return these instructions to the customer's package for future reference.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
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Related Manuals for Nortek B64EM Series
Summary of Contents for Nortek B64EM Series
- Page 1 AIR HANDLER INSTALLATION INSTRUCTIONS B64EM & B64VM SERIES IMPORTANT ATTENTION INSTALLERS: It is your responsibility to know this product better than your customer. This includes being able to install the product according to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for the life of the product.
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Page 2: Table Of Contents
TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION ......3 STARTUP & ADJUSTMENTS ........10 Before You Start the Unit ..........10 REQUIREMENTS & CODES ......... 3 Air Circulation .............. 11 Running the Blower Continuously ......11 GENERAL INFORMATION ..........4 Selecting Continuous Low Speed Fan Operation ... 11 Before You Install this Unit ......... -
Page 3: Important Safety Information
IMPORTANT SAFETY INFORMATION REQUIREMENTS & CODES INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and WARNING: any other special notes highlighted in the manual. Safety markings are used frequently throughout this manual to This unit must be installed in accordance designate a degree or level of seriousness and should not with instructions outlined in this manual... -
Page 4: General Information
GENERAL INFORMATION Plenums & Air Ducts • Plenums and air ducts should be installed in accordance This appliance has been tested for capacity and efficiency with the standards of the National Fire Protection in accordance with AHRI Standards and will provide many Association Standard for Installation of Air Conditioning years of safe and dependable comfort, providing it is properly Systems (NFPA 90A), Standard for Installation of Residence... -
Page 5: Unconditioned Spaces
AIR HANDLER INSTALLATION • Use transition fittings if the supply and/or return air openings of the unit do not match the duct openings. B64 series air handlers are shipped ready for vertical These transitions should be dimensioned in accordance upflow installation and are approved for attic, basement, with standard practice as specified in the ASHRAE alcove/closet or crawlspace installation with zero clearance recommendations for duct transitions. -
Page 6: Horizontal Left Installations
NOTE 1: In all horizontal applications in which the unit is installed above a finished ceiling and/or living space, a secondary drain pan must be installed under the entire unit to avoid damage to the ceiling in the event of condensate overflow. -
Page 7: Circuit Breaker Cover Installation
IMPORTANT: If the webbing is not removed, the condensate will not drain properly and ceiling damage may occur. NOTE: It is recommended that the suction line be insulated up to the coil inside of the cabinet. 7. Insert the plug (from horizontal drain pan) into the open and unused drain hole in the drain pan at the bottom of the unit to block bypass air. -
Page 8: Condensate Drainage
Condensate Drainage Connecting the Linesets IMPORTANT NOTES FOR HORIZONTAL OR CAUTION: DOWNFLOW INSTALLATIONS WITH TXV VALVE: • The sensing bulb must be located flush against the suction line for optimum heat transfer. The air handler must be level to ensure proper •... -
Page 9: Electrical Connections
IMPORTANT SAFETY INFORMATION REQUIREMENTS & CODES INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and WARNING: any other special notes highlighted in the manual. Safety markings are used frequently throughout this manual to This unit must be installed in accordance designate a degree or level of seriousness and should not with instructions outlined in this manual... -
Page 10: Grounding
Grounding If a heater kit is not installed: 1. Remove the 2 wire plug of the air handler by cutting the wires and discarding the plug. WARNING: 2. Strip the ends of the 2 air handler wires and connect to the line-voltage leads with the 2 wire nuts provided. -
Page 11: Air Circulation
√ Verify the thermostat is wired correctly. Make sure all low 4 on B64EM models. B64VM models automatically set the voltage wires are securely connected. heating speed based on the amount of installed heat. The √ Verify the power supply branch circuit overcurrent A/B switch must be set appropriately for the unit cabinet protection is sized properly. -
Page 12: Basic Cooling / Heat Pump Airflow For Variable & Fixed Speed
Basic Cooling / Heat Pump Airflow for Variable & Fixed DISPLAY CURRENT MODE Speed CODE The basic cooling/heat-pump airflow is controlled by setting Standby is a Rotating Segment switches 5 - 8 on the motor control board (mounted on the Cooling Mode (Y input active) blower). -
Page 13: Refrigerant Charging
REFRIGERANT CHARGING • Verify that the thermostat is properly installed and is not being affected by drafts or heat from lamps or other appliances. WARNING: • To achieve the best performance and minimize equipment failure, it is recommended that a yearly maintenance checkup be performed. -
Page 14: Figures & Tables
FIGURES & TABLES 3/4” 3/4” 3/4” 13” 11/8” K.O. (typ.) “A” 1 7/8" K.O. 11/4” 15/8” 11/4” 17/8” 3 1/4” 2 5/8” 1 1/8” 1 7/8” 11/8” K.O. 7/8" K.O. (typ.) 1 7/8” 3 5/8” 5 5/8” 13/4” K.O. (typ.) DETAIL “D”... - Page 15 Circuit Breaker (60A) Heating Element Assembly Control Motor Control Board Upper Door Board Transformer Assembly Capacitor Blower Blower Wheel Limit Motor Mount Kit Blower Housing Blower Motor Coil Assembly Filter Door Horizontal Drain Pan Vertical Drain Pan Filter Tracks Lower Door Assembly Figure 9.
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Page 16: Airflow Data
Airflow Data COOLING OR HEATING AIRFLOW (CFM) SWITCH SETTINGS 0 = OFF, 1 = ON DRY COIL ESP — — 1030 B64EM 1115 1085 1060 1020 A-CABINET 1155 1130 1095 1070 1040 1010 1200 1175 1145 1110 1085 1060 1025 1000 1240 1215... - Page 17 A-CABINET B-CABINET C-CABINET NOMINAL NOMINAL NOMICAL CAPACITY CAPACITY CAPACITY 1100 1200 1250 1300 1350 1400 1450 1500 1550 1600 1050 1650 1150 1700 1000 1250 1750 1050 1350 1800 1125 1400 1900 1200 1600 2000 Table 7. Recommended Cooling Airflow Settings...
- Page 18 COOLING AIRFLOW HEATING AIRFLOW COOL SWITCH SETTING HEATER KIT A/B SWITCH SETTING AIRFLOW A/B SWITCH SETTING AIRFLOW 0 = OFF, 1 = ON INSTALLED 0 = OFF, 1 = ON (CFM) 0 = OFF, 1 = ON (CFM) (KW) 1000 1000 1300 B64VM...
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Page 19: Electrical Data & Diagrams
Electrical Data & Diagrams CONTROL SIGNAL & MODE OPERATION TOTAL KW BOARD ACTION Stage 1 Heat on instantly 5 KW Heat blower on after 3 second delay Stage 1 Heat on instantly 8 KW, 10 KW Heat blower on after 3 second delay Stage 1 Heat on instantly 15 KW Heat blower on after 3 second delay... - Page 20 CONTROL SIGNAL & MODE OPERATION TOTAL KW BOARD ACTION Stage 1 Heat on instantly 5 KW Cool blower on after 3 second delay Stage 1 Heat on instantly 8 KW, 10 KW Cool blower on after 3 second delay Stage 1 Heat on instantly 15 KW Cool blower on after 3 second delay Stage 2 Heat on after 5 seconds delay...
- Page 21 Thermostat Thermostat Thermostat NOTE: Jumper W1 & W2 together if not using W2 on thermostat Conditioner Handler Conditioner Conditioner Y/Y2 Y/Y2 Handler Handler Typical Air Conditioner with Typical Air Conditioner with Typical 2-Stage Air Conditioner Standard Air Handler 2-Stage Air Handler with 2-Stage Air Handler Thermostat Thermostat...
- Page 22 3A Fuse BLWDTC BLWDTC_R COOL HEAT LED 1 HEATER P1 Figure 12. Single Stage Control Board LED 1 HEATER P1 Figure 13. Two - Stage Control Board...
- Page 23 POWER EHEAT 1 2 3 4 5 6 7 8 HEAT COOL Figure 14. Fixed Speed Motor Control Board STATUS LIGHTS L2-IN L2-OUT Y/Y2 L1-IN L1-OUT DEHUM FAN SPEED 2 3 4 5 6 7 8 TEST PORT COOL HEAT SENSOR EXPANSION PORT BLOWER MOTOR...
- Page 24 Figure 16. B64EM Wiring Diagram...
- Page 25 WIRING DIAGRAM Air Handler with Variable Speed High Efficiency Motor Remarques NOTES: 1. The blower motor speed tap connection may not be as shown. 1. Le connecteur de vitesse du moteur du ventilateur peut See the Installation Instructions. différer 2. Disconnect all power before servicing. de l’illustration.
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Page 26: Installation Checklist
INSTALLATION CHECKLIST INSTALLER NAME: ATTENTION INSTALLERS: It is your responsibility to know this product better than your customer. This includes being able to install the product according to strict CITY: STATE: safety guidelines and instructing the customer on how to operate and maintain the equipment for the life of the product. - Page 28 Specifications & illustrations subject to change without notice or incurring obligations (08/22). 10436960 O’Fallon, MO, © Nortek Global HVAC LLC 2022. All Rights Reserved. (NEW)