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B6BM, B6EM, & B6VM SERIES INStALLAtIoN INStRuctIoNS AIR HANDLER 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.
tABLE oF coNtENtS IMPoRtANt SAFEtY INFoRMAtIoN ......3 StARtuP & ADjuStMENtS ........13 Before You Start the Unit ..........13 REquIREMENtS & coDES ......... 3 Refrigerant Charging ........... 13 Air Circulation .............. 14 GENERAL INFoRMAtIoN ..........4 Running the Blower Continuously ......14 Before You Install this Unit ...........
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...
GENERAL INFoRMAtIoN operation of Air Handler During construction This appliance has been tested for capacity and efficiency cAutIoN: in accordance with AHRI Standards and will provide many years of safe and dependable comfort, providing it is properly installed and maintained. Abuse, improper use, and/or Failure to follow these instructions will void the improper maintenance can shorten the life of the appliance factory warranty and may significantly reduce...
• Before occupying the structure: The filter must be replaced practice as specified in the ASHRAE recommendations or cleaned, the duct work must be inspected and cleaned for duct transitions. of any construction debris, and the air handler must be •...
AIR HANDLER INStALLAtIoN B6 series air handler’s are shipped ready for vertical upflow installation and are approved for attic, basement, alcove/ closet or crawlspace installation with zero clearance to combustibles. See Table 1, (page 4) for required installation clearances. this appliance is approved only for indoor use.
to avoid damage to the ceiling in the event of condensate 7. Insert the plug (from horizontal drain pan) into the open overflow. Additionally, it is recommended that an approved and unused drain hole in the drain pan at the bottom of water level indicator or float switch device be used to shut the unit to block bypass air.
Refrigerant Line connections • If leakage is found, clearly mark the location of the leak and return the coil to the distributor for processing. wARNING: • If no leaks are found, the coil may be installed. 3. Depress the valve to relieve all pressure from the coil. 4.
4. Position grommet on line set with sufficient distance away from brazing area. Brazing processes can permanently damage grommets. 5. Connect the suction and liquid lineset tubes. cAutIoN: It is recommended that a wet rag be wrapped around the suction line in front of the close off plate or the sensing bulb (if tXV is installed) before applying heat.
ELEctRIcAL coNNEctIoNS restricted. As an alternative to a separate drain line, an approved water level indicator or float switch device may wARNING: be used to shut down the unit in the event water is detected in the auxiliary pan. • Install a single 5 inch trap in the condensate drain line as ELEctRIcAL SHocK, FIRE oR close to the coil as possible.
control Board • If replacing any of the original wires supplied with the unit, the replacement wire must be copper wire consisting of The control board in the air handler controls the timing the same gauge and temperature rating. sequence of the elements. The board is equipped with a 3 •...
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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...
twINNING StARtuP & ADjuStMENtS These instructions are to be used when connecting two B5 or Before You Start the unit B6 air handlers (2-5 ton models) to a common single stage Prior to start-up, complete the following inspections: A/C condensing unit or heat pump. Twinning is possible for √...
Air circulation Blower configurations Running the Blower Continuously Determining Nominal System Capacity Set the thermostat’s system mode to oFF and the thermostat’s To select the appropriate airflows for the air handler, the fan mode to oN. The blower motor should run continuously. nominal system capacity must be known.
(see page 11). During normal operation, the motor will 1. If the room thermostat incorporates a humidity sensor and DHuM output, connect the DHuM on the thermostat to gradually change speeds during start-up, shut down, when the DHuM terminal on the motor control board. thermostat inputs change, and when the duct static pressure 2.
tRouBLESHootING cABINEt SIZE FILtER SIZE If the air handler fails to operate, check the following: 12 x 20 x 1 • Is the electric turned on? 18 x 20 x 1 • Is the thermostat operating properly? • Are the blower compartment door(s) in place? 20 x 20 x 1 •...
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Circuit Breaker (60A) Heating Element Assembly Transformer Motor Control Board Blower Control Upper Door Wheel Board Assembly Capacitor Motor Mount Kit Blower Housing Blower Coil Motor Assembly Filter Door Horizontal Vertical Drain Pan Drain Pan Filter Tracks Lower Door Assembly Air Handler components Figure 14.
Electrical Diagrams 3A Fuse BLWDTC BLWDTC_R COOL HEAT LED 1 HEATER P1 Single Stage control Board Figure 15. LED 1 HEATER P1 two - Stage control Board Figure 16.
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TEST PORT EXPANSION PORT FAN SPEED 1 2 3 4 5 6 7 8 COOL HEAT STATUS BLOWER MOTOR Fixed Speed Motor control Board Figure 17. 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...
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WIRING DIAGRAM Air Handler Remarques NOTES: 1. Le connecteur de vitesse du moteur du ventilateur peut 1. The blower motor speed tapconnection may not be as shown. différer de l’illustration. Consultez les Instructions See the Installation Instructions. d’installation. 2. Disconnect all power beforeservicing. 2.
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WIRING DIAGRAM Air Handler with Fixed Speed High Efficiency Motor Remarques NOTES: 1. Le connecteur de vitesse du moteur du ventilateur 1. The blower motor speed tap connection may not be peut différer de l’illustration. Consultez les as shown. See the Installation Instructions. Instructions d’installation.
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WIRING DIAGRAM Air Handler with Variable Speed High Efficiency Motor Remarques 1. Le connecteur de vitesse du moteur du ventilateur peut NOTES: différer 1. The blower motor speed tap connection may not be as shown. de l’illustration. Consultez les Instructions d’installation. See the Installation Instructions.
Electrical Data B6BM MINIMuM cIRcuIt AMPAcItY & MAXIMuM oVERcuRRENt PRotEctIoN 240 VAc, 50 & 60 HZ, SINGLE PHASE 208 VAc, 50 & 60 HZ, SINGLE PHASE HEAt KIt MoDEL cABINEt cAPAcItY NuMBER H6HK- NONE 005H-XX 26.6 26.6 23.3 23.3 008H-XX 41.2 41.2 35.9...
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B6(E,V)M MINIMuM cIRcuIt AMPAcItY & MAXIMuM oVERcuRRENt PRotEctIoN 240 VAc, 50 & 60 HZ, SINGLE PHASE 208 VAc, 50 & 60 HZ, SINGLE PHASE HEAt KIt MoDEL cABINEt cAPAcItY NuMBER H6HK- NONE 005H-XX 29.5 29.5 26.4 26.4 008H-XX 44.1 44.1 39.1 39.1 010H-XX...
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coNtRoL SIGNAL & MoDE oPERAtIoN totAL Kw BoARD ActIoN tage eat on instantly 5 KW eat blower on aFter seCond delay tage eat on instantly 10 KW eat blower on aFter seCond delay tage eat on aFter seConds delay tage eat on instantly eat blower on aFter seCond delay...
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coNtRoL SIGNAL & MoDE oPERAtIoN totAL Kw BoARD ActIoN tage eat on instantly 5 KW ool blower on aFter seCond delay tage eat on instantly 10 KW ool blower on aFter seCond delay tage eat on aFter seConds delay tage eat on instantly ool blower on aFter seCond delay...
INStALLAtIoN / PERFoRMANcE cHEcK LISt 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.