SERVICE (cont.)

RELAY (BREWERS W/BREW LOCKOUT)

Removal and Replacement:

1.Disconnect the wires from the relay.

2.For 120/208V, 120/240V, 208V, 380V, 440V and 240V models prior to #U300004095 remove the #6-32 screw securing the relay to the relay mount- ing bracket. For 230V models #U300004095 and up, remove the two screws securing the relay to the relay mounting bracket.

3.Remove relay and discard.

4.For 120/208V,120/240V, 208V, 380V, 440V and 240V models prior to #U300004095, install new relay on relay mounting bracket and secure with a #6-32 screw. For 230V models #U300004095 and up, install new relay on relay mounting bracket and secure with two #6-32 screws.

5.Refer to Fig. 19 and reconnect the wires.

BLU from

 

 

 

 

 

 

 

Start Switch

 

 

 

 

 

BLU from

 

 

 

 

 

 

 

 

 

 

 

2

3

 

Brew Timer

 

1

 

6

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

BLK to Control

RED from

A

 

 

 

 

 

 

 

 

 

Thermostat

Main Harness

 

 

 

 

 

 

 

 

 

 

 

 

120/208V, 120/240V, 208V, 380V, 440V AND 240V

MODELS PRIOR TO #U300004095

 

 

 

 

 

 

BLU to Start

 

 

 

 

 

 

Switch

 

 

 

 

 

 

 

BLU from

 

 

 

 

2

3

Brew Timer

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

5

 

 

 

 

 

4

 

 

 

 

 

 

 

8

 

RED to Control

 

 

 

 

 

 

 

 

 

 

 

BLK from

A

 

 

 

 

Thermostat

 

 

 

 

 

 

 

 

 

 

 

 

 

Main Harness

 

 

 

 

 

 

 

230V MODELS #U300004095 AND UP

 

FIG.19 RELAY TERMINALS

P1739

 

Page 25

10060

080900

 

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Image 25
Bunn U3A service manual Removal and Replacement Disconnect the wires from the relay, Remove relay and discard, Brew Timer

U3A, U3 specifications

Bunn U3A, also known as Bunn's U3A, is a unique and innovative approach to education that caters specifically to retirees and senior citizens. The primary aim of this initiative is to foster lifelong learning and social engagement among older adults, empowering them to explore various subjects of interest and connect with like-minded individuals.

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