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Book No. 22772784 (9--8--06)
HP1300/1600WCU Electrical Manual
CIRCUIT DESCRIPTION
DC HEATER CIRCUIT
A DC heater system is provided to prevent the orifices from freezing in cold tem-
peratures. It is turned on by control panel switch, S5. Fuse F1, a 20 amp fuse,
supplies power to the heaters.
+24V
“Heaters” switch on control panel
S5
W117
BLU
W183
BLU
R3--1
R3
R3--2
W182
BRN
R1--1
R1
R1--2
W181
BRN
GND
GND
R1 = Regulation Heater
R3 = Orifice Heater
CHART G1
Содержание 25/300
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Страница 118: ...Revision History Rev EC Number Comments A SVC31234 Original release B CN026881 Doosan reference updates...