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B5SM -090/120 SERIES
Installation Instructions
LIGHT COMMERCIAL AIR HANDLER
Vertical Application
Horizontal Application - Rear View Horizontal Application - Front View
IMPORTANT
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 sug
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Important Safety Information ....................................3 General Information ...................................................4 Before You Install this Unit .........................................4 Locating the Air Handler ............................................4 Field Connections for Electrical Power Supply ..........4 Air Ducts ....................................................................4 Unconditioned Spaces ...........................................4 Acousti
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IMPORTANT SAFETY INFORMATION Safety markings are used frequently throughout this WARNING: manual to designate a degree or level of seriousness and The safety information listed below must should not be ignored. WARNING indicates a potentially be followed during the installation, service, hazardous situation that if not avoided, could result in and operation of this unit. Unqualified personal injury or death. CAUTION indicates a potentially individuals should not attempt to interpret the
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GENERAL INFORMATION Air Ducts This unit is designed only for use with a supply B5SM air handlers are shipped from the factory ready for and return duct. Air ducts should be installed in installation in a horizontal position. The units can be easily re- accordance with the standards of the National Fire confi gured in the fi eld for vertical applications. The return air Protection Association Standard for Installation of opening is interchangeable between the bottom of the unit and Air Condi
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AIR HANDLER INSTALLATION Connecting Refrigerant Tubing Packaging Removal Remove the shipping crate and User’s Manual from the WARNING: equipment. T ake care not to damage the tubing connections when removing the crate. NITROGEN HEALTH Minimum Clearance Requirements 1 This air handler must be installed with ample clearance FLAMMABILITY 0 for easy access to the air fi lters, blower assembly, and, controls. Allow 24 inches minimum clearance from the REACTIVITY 0 front of the motor and refriger
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� The B5SM-120 air handler has a dual circuit coil and 6. Re-install the fi lter slide assembly back into the fi lter rack the B5SM-090 has a single circuit coil. frame and secure with the 4 screws removed earlier. If � The B5SM-120 air handler is charged through service replacing factory supplied fi lters with disposable fi lters, valves on the end of the liquid tube for each circuit. use only 2” disposable fi lters. These must be removed before brazing the line sets. Accessing the fi lters does
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ELECTRICAL WIRING schematic before making any electrical connections to the unit. See Figure 6 (page 13). � These air handlers can be purchased in both single WARNING: and three phase power confi gurations, all single phase To avoid risk of electrical shock, personal equipment is shipped from the factory ready for fi eld connections. For electrical connection locations see injury, or death, disconnect all electrical power Figures 4 or 5 (pages 10 or 11). to the unit before performing any ma
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Unbalanced 3-Phase Supply Voltage Grounding Voltage unbalance occurs when the voltages of all phases of a 3-phase power supply are no longer equal. This WARNING: unbalance reduces motor effi ciency and performance. The unit cabinet must have an uninterrupted or Some underlying causes of voltage unbalance may include: unbroken electrical ground to minimize personal Lack of symmetry in transmission lines, large single-phase loads, and unbalanced or overloaded transformers. A injury if an el
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Pulley Alignment necessary to change the factory set speed. Adjustment Inspect the pulley alignment between the motor sheave of the blower speed is made through varying the pitch of and blower pulley. If a misalignment occurs, adjust the the motor pulley, this adjustment allows for a wide range location of the motor sheave by loosening the set-screw of installation applications. Refer to Table 4 (page 12) for in the stationary face of the motor sheave. Relocate the blower performance data. s
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FIGURES & TABLES 3/4" Field Installed Hanging Rods 1 1/4" 47 5/8" Center to Center 2 7/32" C 23 13/16" of Unit L C 1" of Gravity L Electrical Connections Electrical Connections Air Flow Air Flow 13 5/8" 8 3/16" 6 3/4" 15 11/16" 15 9/16" 5 11/16" 4 3/4" 17 11/16" 4 3/8" 7 1/2 Ton Unit Refrigerant Line Connections 17 13/16" 4 3/16" (Top View Shown with Doors Removed) 10 Ton Unit Refrigerant Line Connections (Top View Shown with Doors Removed) Field Installed Hanging Rods 57" Center to Center C 28
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18 13/16" 19 3/8" 22 1/16" Supply Duct 16 1/4" Electrical Knock-outs Top View 27 3/8" Cabinet Depth (without Filter Rack) 60 1/4" Cabinet Width 16 1/4" Supply Duct Opening 18 13/16" Supply 19 3/8" 22 1/16" Duct Opening 9 1/8" 2 Electrical Connections 53 1/4" Cabinet Height 25 1/16" 23" Return Filter Rack Duct Opening Frame Condensate 5 1/16" Drain 29 5/16" Depth 53" Return Duct Opening (with Filter Rack) 57" Filter Rack Frame Front View Side View Figure 5. B5SM Physical Dimensions for Vertical
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AIRFLOW DATA Table 4. Blower Performance Data 12 External Static Pressures (Inches Water Column) Motor Model Sheave 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Position 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 Fully 4182 666 1.28 3961 667 1.20 3706 668 1.11 3436 669 1.03 3081 669 0.93 2738 672 0.83 Closed 1 Turn 3867 629 1.09 3638 630 1.01 3366 631 0.95 3055 632 0.85 2672 633 0.77 Open B5SM- 2 Turns 090 3268 592 0.82 3074 593 0.80 2783 593 0.74
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460 208-230 460 208 - 230 ELECTRICAL INFORMATION Figure 6. Wiring for Single and Three Phase Units 13 B5SM Series Electrical Configurations Frequency Single Phase Three Phase 7.5/10T Air Handler Systems 60 Hz 208-230V 208-230/460V GENERAL NOTES: 50 Hz 220V 380V 1. Disconnect all power before servicing. 2. If wiring must be replaced, use only THREE PHASE ONLY NOTES: 105˚C copper wire of the same gauge. 1. Three phase units are factory wired for 3. Three phase, 60 Hz units may be 3. For e
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NOTE: C &W2 to be connected to electric heat. TO FIELD SUPPLIED DISCONNECT GND SINGLE STAGE HEAT/COOL THERMOSTAT L1 RC W G Y L2 L3 BLOWER MOTOR FREEZESTAT GREEN BROWN G BLACK C C See Note W2 W1 O Y Y BLACK R R TERMINAL BOARD AIR HANDLER SECTION OUTDOOR SECTION SINGLE STAGE HEAT/COOL THERMOSTAT- NO ECONOMIZER NOTES: 1. C & W2 to be connected to electric heat. 2. Remove BLACK wire from air handler low voltage terminal board Y terminal and connect to YELLOW wire from economizer. 3. 2nd Stage re
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NOTES: TO FIELD 1. Jumper between W2 and E is required. SUPPLIED DISCONNECT 2. C &W2 to be connected to electric heat. GND SINGLE STAGE HEAT PUMP THERMOSTAT L1 R O W2 E C G Y B L2 L3 NOTE 1 BLOWER MOTER FREEZESTAT BROWN GREEN G BLACK C C W2 W2 O O NOTE 2 R R BLACK Y Y W1 TERMINAL BOARD AIR HANDLER OUTDOOR SECTION SECTION TYPICAL HEAT PUMP THERMOSTAT CONNECTION (NO ECONOMIZER) NOTES: 1. Jumper between W2 and E is required. 2. C & W2 to be connected to electric heat. 3. Remove BLACK wire from air
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Installed by: Date Installed: Maintenance Task Performance Date Performed: Schedule WM SA A Air Filters Inspect, clean or replace as required. x Condensate Drain(s) & Pan Clean condensate drain pan x Inspect the flow of condensate through x the drain lines. Clean or Correct problems as necessary. Blower Assembly Inspect the fan belt for wear, alignment x & and proper tension. Replace or adjust as required. Clean the blower wheel and housing. x x Inspect the blower assembly for corrosion an
