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LIGHT COMMERCIAL AIR HANDLER

Installation Instructions

B5SM -090/120 SERIES

Horizontal Application - Rear View

Horizontal Application - Front View

Vertical Application

Please read this information thoroughly and become familiar with the capabilities and 
use of your appliance before attempting to operate or maintain this unit. Keep this 
literature 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.

These instructions are primarily intended to assist qualifi ed 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.

DO NOT DESTROY. PLEASE READ CAREFULLY AND 

KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

IMPORTANT

Summary of Contents for B5SM -090 Series

Page 1: ...ss 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 These instructions a...

Page 2: ...6 Electrical Wiring 7 Pre Electrical Checklist 7 Line Voltage 7 Thermostat Connections 7 Electrical Wiring with a Duct Heater 7 Unbalanced 3 Phase Supply Voltage 8 Grounding 8 Startup Adjustments 8 Pr...

Page 3: ...type equipment All electrical wiring must be completed in accordance with local state and national codes and regulations and with the National Electric Code ANSI NFPA 70 or in Canada the Canadian Ele...

Page 4: ...be given to availability of electric power service access noise and shade Field Connections for Electrical Power Supply All wiring must comply with current provisions of the National Electrical Code...

Page 5: ...hes Note It is recommended that a secondary drain pan be used when the unit is hung above an enclosed ceiling Connecting Refrigerant Tubing WARNING Evaporator Coils are factory shipped with a nitrogen...

Page 6: ...Z bracket See Figure 1 5 Secure the filter slide assembly together with the four screws Table 2 Electrical Rating Data MODEL VOLTAGE PHASE Hz FLA HP MCA MOP 090 120 J 208 230 460 3 60 6 6 6 6 3 3 2 8...

Page 7: ...re making any electrical connections to the unit See Figure 6 page 13 These air handlers can be purchased in both single and three phase power configurations all single phase equipment is shipped from...

Page 8: ...d verify the moveable face is properly secured Grounding WARNING The unit cabinet must have an uninterrupted or unbrokenelectricalgroundtominimizepersonal injury if an electrical fault should occur Do...

Page 9: ...zedorrotating equipment Always disconnect electrical power and allowallrotatingequipmenttostopbeforeservicing the unit Failure to do so may result in personal injury loss of limb or death from electri...

Page 10: ...57 Filter Rack Frame 60 1 4 Cabinet Width 1 5 8 1 5 8 25 1 16 Filter Rack 16 1 4 Electrical Knock outs Condensate Drain Figure 4 B5SM Physical Dimensions for Horizontal Installations 47 5 8 Center to...

Page 11: ...er Rack Frame 60 1 4 Cabinet Width 18 13 16 Supply Duct Opening 22 1 16 19 3 8 27 3 8 Cabinet Depth without Filter Rack 2 16 1 4 Supply Duct Opening 9 1 8 29 5 16 Depth with Filter Rack 25 1 16 Filter...

Page 12: ...8 0 9 1 0 CFM RPM Kw CFM RPM Kw CFM RPM Kw CFM RPM Kw CFM RPM Kw CFM RPM Kw CFM RPM Kw CFM RPM Kw CFM RPM Kw B5SM 120 2HP 60 Hz Fully Closed 4789 868 2 12 4640 868 2 00 4442 870 1 95 4208 873 1 87 40...

Page 13: ...ONLY NOTES 1 Disconnect all power before servicing 2 If wiring must be replaced use only 105 C copper wire of the same gauge 3 For economizer application remove black wire from low voltage board Y te...

Page 14: ...0 GRN GRY YEL BLK ORN RED RED WHITE BLUE VIO 14 GRN 18 GRN 18 RED 12 GRY 12 BLK 12 BLU 12 BLK 12 NOTES 1 C W2 to be connected to electric heat 2 Remove BLACK wire from air handler low voltage terminal...

Page 15: ...ANGE RED RED WHITE BLUE VIO 14 GRN 18 GRN 18 RED 12 GRY 12 BLK 12 BLU 12 BLK 12 BLACK BLACK GREEN BROWN SINGLE STAGE HEAT PUMP THERMOSTAT NOTE 1 NOTE 2 NOTE 4 NOTE 5 NOTE 3 G Y E R O B W2 C NOTES 1 Ju...

Page 16: ...all coil connections for leaks x Air Handler Assm Inspect Mounting Hardware for security and corrosion x Inspect Filter Rack mounting hardware for security x Inspect panel assemblies for proper insta...

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