Summary of Contents for Mid-Continent Instrument MD41-1844
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Lithium-ion Battery Systems MD41-1844 28 VDC Horizontal Mount ® Mid-Continent Instruments and Avionics Mid-Continent Instrument Co., Inc. dba Mid-Continent Instruments and Avionics 9400 E. 34th Street N. Wichita, KS 67226 USA Manual Number 9018268 PH (800) 821-1212 FX (316) 630-0723...
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Wichita, KS 67226 USA PH (316) 630-0101 FX (316) 630-0723 ks.customerservice@mcico.com All products produced by Mid-Continent Instrument Co., Inc., including those identified as Mid- ® Continent Instruments and Avionics or True Blue Power , are designed and manufactured in Wichita, KS, USA.
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REVISION HISTORY Rev. Date Detail 5/18/15 Production release. Manual Number 9018268 Rev. A May 18, 2015...
TABLE OF CONTENTS SECTION 1 GENERAL DESCRIPTION INTRODUCTION TECHNICAL SPECIFICATIONS 1.2.1 Model 1.2.2 Physical Attributes 1.2.3 Performance SECTION 2 PRE-INSTALLATION CONSIDERATIONS COOLING EQUIPMENT LOCATION ROUTING OF CABLES LIMITATIONS TECHNICAL SPECIFICATIONS SECTION 3 INSTALLATION PROCEDURE GENERAL INFORMATION UNPACKING AND INSPECTING 3.2.1 Included Parts 3.2.2 Available Parts...
SECTION 1 GENERAL DESCRIPTION INTRODUCTION The MD41-1844 product is compact, self-contained Annunciation and Control Unit (ACU). The fully integrated control unit provides annunciation for Mid-Continent Instruments and Avionics TB44 battery systems. It combines the necessary functions and annunciations required to interface with an approved system.
EQUIPMENT LOCATION The MD41-1844 ACU must be mounted as close to the pilot’s field of view as possible. The unit depth, with connector attached, must also be taken into consideration when selecting an appropriate location. Allow at least 3 inches of space behind the unit for connector attachment and removal.
MCI P/N 7014517 CABLE HARNESS The MD41-1844 ACU cable harness should be made using 24 AWG wire or larger for all connections. Construct the cable harness with regards to the instructions below and using the Connector Pinout of Figure 1, Schematic Pinout of Table 4, and Wiring Diagram of Figure 2.
3.3.3 Harness Verification With the MD41-1844 ACU disconnected, turn on the avionics master switch and use an ohm- meter to verify that aircraft avionic bus power is on the appropriate pin(s) with appropriate voltage. Also verify that aircraft ground is applied to the appropriate pins.
Refer to Section 2: Pre-Installation Considerations in regards to equipment location. The MD41-1844 ACU is designed for rear panel mounting only. A cutout should be made in the panel in accordance with Figure 3 for the unit bezel and two mounting holes. A cutout template is available from Mid-Continent Instruments and Avionics (reference p/n 8014474) upon request.
SECTION 4 OPERATION FRONT PANEL CONTROLS AND ANNUNCIATIONS 4.1.1 Controls BATT/HEAT Avionics bus (power to Annunciator) is OFF: • Pressing the BATT/HEAT momentary switch for less than two seconds lights all annunciations (as depicted in Figure 4) while the switch is activated. •...
4.1.3 ADDITIONAL INFORMATION Refer to the installation manual and operating instructions of the TB44 for additional operational and functional interface details. SECTION 5 CONFORMANCE CONTINUED AIRWORTHINESS STATEMENT No periodic scheduled maintenance or calibration is necessary for continued airworthiness of the MD41- 1844 ACU.
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