Garmin GI 275 Installation Manual page 382

NOTES CONTINUED
FOR CENTURY 21 AUTOPILOT: IF OPTIONAL AP DISC SWITCH IS NOT INSTALLED, REMOVE THE EXISTING
CONDUCTOR FROM CD194 PINS 11 AND 12. INSTALL WIRING TO THE GI 275 RELAY (WITHOUT SWITCHES)
14
AS SHOWN. THIS STC DOES NOT AUTHORIZE INSTALLATION OF AP DISC SWITCH.
REMOVE THE EXISTING CONDUCTOR FROM CD189-3 ON FLIGHT COMPUTER SIDE, AND CONNECT
15
CD189-3 TO THE GI 275 RELAY AS SHOWN.
USED FOR CENTURY 31, 41, AND 2000 INSTALLATIONS ONLY.
16
CONNECTIONS MUST BE MADE TO THE PILOT'S PRIMARY ADI ONLY.
17
RETAIN EXISTING WIRE FROM CD-34 PIN K TO CD-58 PIN C.
18
RELOCATE EXISTING WIRE FROM CD-20 PIN 1 TO NEW AP DISC RELAY AS SHOWN.
19
RELOCATE EXISTING WIRE FROM CD-76 PIN B TO NEW AP DISC RELAY AS SHOWN. EXTEND EXISTING
20
WIRE IF NECESSARY.
INSTALL EXTERNAL AP DISCONNECT RELAY INTO AP DISCONNECT CIRCUIT AS SHOWN. EXTERNAL AP
DISC RELAY CONTACTS MUST SUPPORT THE MAXIMUM CURRENT THROUGH THE AP DISCONNECT
21
WIRING.
ALL WIRES FROM RELAY TO AP DISC INPUT MUST BE OF THE SIZE SPECIFIED IN THE AUTOPILOT
22
INSTALLATION MANUAL TO SUPPORT THE CURRENT LOAD FROM THE DISCONNECT CIRCUIT.
AP DISC RELAY MUST BE CONNECTED TO THE CIRCUIT BREAKER FOR THE GI 275 THAT IS PROVIDING
23
ATTITUDE TO THE AUTOPILOT.
USE 10.0 KOHM, ½ W RESISTOR SUCH AS P/N RN65E1002FB14.
24
USE 2.2 KOHM, ½ W RESISTOR SUCH AS P/N RN65E2201FB14.
25
FOR NEW INSTALLATIONS, USE INDUCTOR P/N 5800-183-RC AND CAPACITOR P/N M39014/05-2273.
26
USE CD-18 THAT WAS DIRECTLY CONNECTED TO THE HORIZON INDICATOR BEING REPLACED.
27
Figure B-13 Autopilot/Flight Director Interconnect - Century
190-02246-10
Rev. 11
Sheet 7 of 7
GI 275 Part 23 AML STC Installation Manual
Page B-37