Bunn U3 Manuales De Servicio

Page 30

BLK to Contactor T1 (All 

Models Except 30V-CE 

Models)
BLK  (Thermal  Fuse)  to 

Contactor Top Left Termi-

nal) (30V-CE Models)

RED  to  Contactor  T  (All 

Models  Except  30V-CE 

Models)
RED (Thermal Fuse) to Con-

tactor  Top  Right  Terminal) 

(30V-CE Models)

BLK  to  Contactor  L1 

(10/08V, 10/40 Three 

Wire Single Phase, 08V 

and  40V  Two  Wire, 

Single Phase)
BLU  to  Main  Harness 

(08V, 40V, 380V Three 

Wire  ,Three  Phase  and 

380V,440V  Four  Wire, 

Three Phase
BLK  (Thermal  Fuse  to 

Contactor  Lower  Left 

Terminal) (30V-CE Mod-

els)

RED  to  Contactor  L 

(10/08V, 10/40 Three 

Wire  Single  Phase,  08V 

and 40V Two Wire, Single 

Phase)
BLU  to  Main  Harness 

(08V, 40V, 380V Three 

Wire  ,Three  Phase  and 

380V,440V  Four  Wire, 

Three Phase
RED  (Thermal  Fuse)  to 

Contactor  Lower  Right 

Terminal)

FIG. 7 TANK HEATER TERMINALS

P1746

LEFT

RIGHT

SET

     L

OC

K

LO

C

K

SE

T

FIG. 6 TANK HEATER

P09.60

Location:
 

The tank heaters are located on the right center 

and the left center of the component bracket.

Test Procedures:

1.  Disconnect the brewer from the power source.

.  Disconnect the wires from the tank heater.

3.  Check for continuity across the tank heater termi-

nals.

If continuity is present as described, proceed to #4.

If continuity is not present as described, replace the 

tank heater.

Removal and Replacement:

1.  Remove the wires or thermal fuses from the tank 

heater.

.  Remove the four #8-3 screws securing the tank 

heater to the component bracket.

3.  Remove tank heater and gasket.

4.  Position new tank heater and gasket on the compo-

nent bracket and secure with four #8-3 screws.

5.  Refer to Fig. 7 and reconnect the wires.

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