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B6EW Series
INSTALLATION INSTRUCTIONS
Vertical Wall Mount Air Handler
Please read all information in this manual thoroughly and become familiar with the capabilities
and use of your appliance before attempting to operate or maintain this unit. 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. Improper installation, service, adjustment, or maintenance may cause explosion,
fire, electrical shock or other hazardous conditions which may result in personal injury or
property damage.
Unless otherwise noted in these instructions, only factory authorized kits or accessories may
be used with this product. Keep this manual where you have easy access to it in the future. If a
problem occurs, check the instructions and follow recommendations given. If these suggestions
don't eliminate your problem, call your servicing contractor.
NOTE: Unit style may appear different depending on model.
IMPORTANT
DO NOT DESTROY. PLEASE READ CAREFULLY AND
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
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Summary of Contents for Nortek B6EW Series
- Page 1 B6EW Series INSTALLATION INSTRUCTIONS Vertical Wall Mount Air Handler NOTE: Unit style may appear different depending on model. IMPORTANT Please read all information in this manual thoroughly and become familiar with the capabilities and use of your appliance before attempting to operate or maintain this unit. These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this appliance.
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Page 2: Important Safety Information
TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION INSTALLER: Please read all instructions before servicing Important Safety Information ........2 this equipment. Pay attention to all safety warnings and any other special notes highlighted in the manual. Safety Requirements & Codes ..........3 markings are used frequently throughout this manual to General Information ...........4 designate a degree or level of seriousness and should not Before You Install this Unit .........4... -
Page 3: Requirements & Codes
REQUIREMENTS & CODES The information listed below is for reference purposes only and does not necessarily have jurisdiction over local or state WARNING: codes. Always consult with local authorities before installing any gas appliance. This unit must be installed in accordance with Duct Systems instructions outlined in this manual during •... -
Page 4: General Information
GENERAL INFORMATION Locating the Air Handler • Survey the job site to determine the best location for The unit has been tested and certified by AHRI for capacity mounting the unit. Consideration should be given to and efficiency and will provide many years of safe and availability of electric power, service access, and noise. - Page 5 must be cleaned and/or repaired if found to be dirty, Standard for the Installation of Warm Air Heating and damaged, or malfunctioning in any way by a qualified Air Conditioning Systems (NFPA No. 90B). HVAC technician. The air handler shall be inspected •...
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Page 6: Air Handler Installation
AIR HANDLER INSTALLATION If the air handler is recessed in a wall, attachment to the framing studs are through the inside of the front flange. The B6EW Air Handler is shipped ready for vertical upflow For hanging applications, these units are provided with installation and can be mounted directly on a wall or 2-piece offset hanging bracket (Figure 1) attached to the recessed between framing studs as shown in Figure 1. - Page 7 Connecting the Linesets CAUTION: NOTES: Before proceeding, perform steps 1 - 3 in the System Depressurization section. This unit uses refrigerant R-410A. DO NOT use 1. Route and cut both lineset tubes to proper length in any other refrigerant in this unit. Use of another accordance with the outdoor unit specifications.
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Page 8: Electrical Wiring
ELECTRICAL WIRING • The drain lines can be routed out the bottom, left or right side of the air handler, but must maintain a downward slope to ensure proper condensate drainage. If the WARNING: bottom access panel is moved to the front (for bottom return air), the condensate drain tubes must be routed ELECTRICAL SHOCK, FIRE OR EXPLOSION thru one of the side openings. - Page 9 • All 208/230 Volt units are shipped from the factory wired warm air registers or electrical appliances. Refer to the for 240 volt operation. For 208V operation, remove the thermostat manufacturer’s instruction sheet for detailed lead from the transformer terminal marked 240V and mounting and installation information.
- Page 10 Configuring Blower Speed for Multi-Speed Units 5 Speed Motor Terminals The blower speed is preset at the factory for operation Terminal M1 = Low speed at the same speed for heating and cooling, by using the Terminal M2 = Medium Low speed jumping terminal on the blower motor and connecting it Terminal M3 = Medium speed to the desired speed with both the red and black wires...
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Page 11: Startup & Adjustments
STARTUP & ADJUSTMENTS 5. Inspect the unit rating plate for the proper type of refrigerant and quantity. WARNING: 6. Weigh in the proper amount of new (or reclaimed) refrigerant. Air Circulation NITROGEN Running the Blower Continuously HEALTH Set the thermostat’s system mode to OFF and the thermostat’s fan mode to ON. -
Page 12: Unit Maintenance
UNIT MAINTENANCE Model Number Filter Size Proper maintenance is most important to achieve the best B6EW-X18K performance from a furnace. Follow these instructions for 16” x 20 x 1” B6EW-X24K years of safe, trouble free operation. B6EW-X25K 20” x 20 x 1” WARNING: B6EW-X30K 20”... - Page 13 FIGURES & TABLES 1 5/8 1 5/8 VIEW 1 7/8 Liquid Line Ø3/8" Low Voltage 2 1/8 Ø1 1/8" K.O. 1 1/4 Suction Power Entry Line Ø1 1/8" K.O. 1 1/2 Power Entry 1 5/8 2 5/8 Ø3/8" K.O. 6 1/4 10 1/2 1 1/2 LEFT...
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Page 14: Airflow Data
AIRFLOW DATA Dry Coil ESP X18K/X24K 1080 1040 1026 1165 1128 1118 1065 1048 1020 Dry Coil ESP X25K/X30K 1034 1163 1128 1099 1067 1054 1019 1245 1215 1191 1155 1124 1102 1068 1047 Dry Coil ESP 1026 X36K 1121 1080 1039 1001... -
Page 15: Wiring Diagrams
WIRING DIAGRAMS Figure 5. Wiring Diagram for B6EW-X18K, B6EW-X24K, B6EW-X25K, B6EW-X30K, & B6EW-X36K (1.5, 2, 2.5, & 3 Ton Units) - Page 16 Figure 6. Wiring Diagram for B6EW-X18K, B6EW-X24K, B6EW-X25K, B6EW-X30K, & B6EW-X36K (1.5, 2, 2.5, & 3 Ton Units)
- Page 17 LOCATION OF AIR HANDLER COMPONENTS Heating Element Mounting Assembly Bracket Element Relay Limit Switch Circuit Breaker (60A) Distributor Coil Assembly Blower Motor Drain Pan Motor Mount Blower Housing PCB Board Transformer Blower Wheel Figure 7. Air Handler Components...
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Page 20: Installation Checklist
Please read all instructions carefully before starting the installation. Return these instructions to the customer’s package for future reference. Specifications & illustrations subject to change without notice or incurring obligations (07/19). 709207C O’Fallon, MO, © Nortek Global HVAC LLC 2019. All Rights Reserved. (Replaces 709207B)