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21

711254B

Air Handler with Factory Installed Heat (15kW)

01/15

CAP.

1

3

5

2

1

2

4

6

HEATER PLUG

BLW DTC

RELAY

Y

L2

L1

EAC

COOL

HEAT

W G

R

C

R
C
L2
L1

R

-

7 6 5 4 3 2 1

240

24 V

208 COM

TRANSFORMER

R

C

BROWN

BLACK

WHITE

RED

GRAY

BLACK

ELEMENT

BLACK

GREY

BLACK

LIMIT

RED

RED

RELAY

RELAY

ELEMENT

GRAY

ORANGE

BLUE

HARNESS

BROWN

MOTOR

4-SPEED

BLOWER 

MOTOR 

PLUG

6

5

4

3

2

1

1 = COM
2 = HIGH
3 = MED HIGH

4 = MED LOW

5 = LOW
6 = OPEN

RELAY

LIMIT

CIRCUIT 

BREAKERS

SUPPLY VOLTAGE

GROUND

YELLOW

RED

BLA

CK

RED

ELEMENT

BLACK

RED

NOTES:
1. The blower motor speed tap connection may 
not be as shown. See the Installation Instructions.
2. Disconnect all power before servicing.
3. Transformer may have a dual voltage primary tap. 
Match the tap position with the supply voltage used.
4. If the internal wiring is replaced, use only 105°C 
copper wire of the same gauge.

BLACK

BL

AC

K

RED

IF BOARD 

EQUIPPED 
WITH 
BLWDTC 
TERMINAL

BLACK

RED

WHITE

WIRING DIAGRAM

FIELD WIRING

LEGEND:

LOW VOLTAGE

HIGH VOLTAGE

BLA

CK

BLA

CK

RED

RED

RELAY

Remarques
1. Le connecteur de vitesse du moteur du ventilateur peut
différer de l’illustration. Consultez les Instructions d’installation.
2. Débranchez toutes les sources d’alimentation avant l’entretien.
3. Le transformateur peut avoir un robinet principal à double tension. 
Agencez la position du robinet au type de tension de l’installation.
4. Si le câblage interne est remplacé, utilisez seulement un fil de 
cuivre 105° C du même gabarit.

(Replaces 711254A)

Figure 14. B6BV Air Handler Equipped With pSc motor & 15 kw Heater Kit

(B Size cabinet only)

Summary of Contents for B6BV Series

Page 1: ...nt role as well Pay attention to all safety warnings and any other special notes highlighted in the manual Improper installation of the appliance or failure to follow safety warnings could result in s...

Page 2: ...Blower Off 10 Blower Configurations 10 Determining Nominal System Capacity 10 Selecting Continuous Low Speed Fan Operation 10 Proper Blower Speed for Multi Speed Units 10 High Efficiency Fixed Speed U...

Page 3: ...ted in accordance with the Canadian Electric Code Part 1 CSA C 22 1 Installationofequipmentmayrequirebrazingoperations Installer must comply with safety codes and wear appropriate safety equipment saf...

Page 4: ...his may result in fire explosion carbon monoxide poisoning personal injury or property damage Plenums and air ducts should be installed in accordance with the standards of the National Fire Protection...

Page 5: ...ate The supply air must be delivered to the heated space by duct s secured to the casing running full length and without interruption Unconditioned Spaces All duct work passing through unconditioned s...

Page 6: ...r attic basement alcove closetorcrawlspaceinstallationwithzeroclearance to combustibles See Figure 1 page 4 for required installationclearances Thisapplianceisapprovedonly for indoor use Remove the sh...

Page 7: ...ant Requirements for sealing ductwork varyfromregiontoregion Consultwithlocalcodes for requirements specific to your area A C or H P Coil Installation Approved air conditioning and heat pump system co...

Page 8: ...isolating contacts to prevent inter connection of Class 2 outputs Where local codes require that the thermostat wiring must be routed through a conduit or raceway splices can be made inside the unit...

Page 9: ...y Theseoutdoorunitscomestandardwith24V power supply sufficient for powering both air handlers c Low voltage wiring should be connected as shown in Figure 10 page 18 d Wire all other low voltage thermo...

Page 10: ...BV series air handler is equipped with the option of continuous low speed fan operation When G is energized without Y Y2 the air handler will operate using the heating speed With G Y Y2 or Y Y2 energi...

Page 11: ...ithin the range shown in Table 6 page 14 and that the the system is properly charged Please refer to the instructions supplied with the outdoor unit If icing continues to occur raise the selected airf...

Page 12: ...s recommended that the blower compartment be cleaned of dirt or lint that may have accumulated in the compartment or on the blower and motor as part of the annual inspection Blower Fan Wheel Inspect t...

Page 13: ...4 13 1 7 8 K O 11 8 K O typ 11 4 15 8 17 8 11 4 3 1 4 2 5 8 11 8 K O typ 13 4 K O typ 1 7 8 3 5 8 5 5 8 DETAIL D 3 1 4 2 1 4 15 1 4 13 SUCTION LIQUID W 1 1 8 1 7 8 7 8 K O H 22 A Cabinet Size H W A D...

Page 14: ...10 960 925 875 830 745 1 0 1 0 1275 1220 1175 1120 1060 970 930 890 0 1 1 0 1365 1350 1255 1200 1150 1105 1060 1025 1 1 1 0 1480 1430 1370 1325 1265 1225 1185 1140 0 0 0 1 1560 1535 1485 1430 1375 133...

Page 15: ...blower on after 3 second delay Stage 2 Heat on after 5 second delay Stage 3 Heat on after 10 second delay Stage 4 Heat on after 15 second delay Off Heat stages off instantly Blower off after 15 second...

Page 16: ...5 seconds delay Stage 3 Heat on after 10 seconds delay Stage 4 Heat on after 15 seconds delay Stage 5 Heat on after 20 seconds delay Stage 6 Heat on after 25 seconds delay Off Heat stages off instantl...

Page 17: ...s delay Stage 3 Heat on after 10 seconds delay Stage 4 Heat on after 15 seconds delay Stage 5 Heat on after 20 seconds delay 30 KW Stage 1Heat on instantly Cool blower on after 3 second delay Stage 2...

Page 18: ...Typical 2 Stage Heat Pump with 2 Stage Air Handler Y2 Y2 Y2 Y2 OUT W E R Air Conditioner Air Handler Air Conditioner Air Handler Heat Pump Air Handler Heat Pump O R C Y Air Handler Heat Pump NOTE Jump...

Page 19: ...AT COOL EAC L 1 L 2 P2 R C G W Y 3A Fuse HEATER P1 Figure 11 Single Stage Control Board 3A Fuse EAC L 1 L 2 HUM L 1 L 2 8 1 2 3 4 5 6 7 8 ON HEAT COOL R C G W D Y EHEAT POWER ECM BLOWER Figure 12 Fixe...

Page 20: ...OWER MOTOR PLUG 6 5 4 3 2 1 1 COM 2 HIGH 3 MED HIGH 4 MED LOW 5 LOW 6 OPEN NOTES 1 The blower motor speed tap connection may not be as shown See the Installation Instructions 2 Disconnect all power be...

Page 21: ...have a dual voltage primary tap Match the tap position with the supply voltage used 4 If the internal wiring is replaced use only 105 C copper wire of the same gauge BLACK BLACK RED IF BOARD EQUIPPED...

Page 22: ...ir un robinet principal double tension Agencez la position du robinet au type de tension de l installation 4 Si le c blage interne est remplac utilisez seulement un fil de cuivre 105 C du m me gabarit...

Page 23: ...23...

Page 24: ...r reproductive harm Specifications illustrationssubjecttochangewithoutnoticeorincurringobligations 10 16 O Fallon MO Nortek Global HVAC LLC 2016 All Rights Reserved INSTALLER NAME CITY STATE INSTALLAT...

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