Bunn U3 U3A - Manual (Page 25)

Page 25
SERVICE (cont.)
RELAY (BREWERS W/BREW LOCKOUT)
120/208V, 120/240V, 208V, 380V, 440V AND 240V
MODELS PRIOR TO #U300004095
230V MODELS #U300004095 AND UP
FIG.19 RELAY TERMINALS P1739
RED from
Main Harness
BLU from
Brew Timer
BLK to Control
Thermostat
BLU to Start
Switch
BLU from
Brew Timer
BLK from
Main Harness
RED to Control
Thermostat
BLU from
Start Switch
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.
10060 080900