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Pressure Switches - MCI A/C System
On the air conditioning system of MCI coaches, there are a number of pressure switches used to control the A/C compressor and to prevent damage to the system. The main differences between these switches are the pressure settings and whether the switch contacts are normally open or normally closed.
Below is a list of pressure switches used by MCI with different characteristics listed (wire color, pressure ratings, etc.) All the part numbers listed are stocked by MCI Service Parts.
MCI A/C SYSTEM PRESSURE SWITCHES
R-12
| 7G-12-328 |
High Pressure Cut Out Switch Asm with Faston Connectors |
| ››16G-10-40 |
Switch Only - Orange Leads - Open 340psi Close 190psi |
| 16G-10-49 |
High Pressure Cut Out Switch Asm with Econoseal Connectors |
| ››16G-10-40 |
Switch Only - Orange Leads - Open 340psi Close 190psi |
| 7G-12-329 |
Open 15psi Close 35psi No Longer Available Use
7J-12-380 |
| 7J-12-380 |
Low Pressure Cut Out Switch Asm with Faston Connectors |
| ››16J-10-12 |
Switch Only - White Leads - Open 4psi Close 22psi |
| 16J-10-16 |
Low Pressure Cut Out Switch Asm with Econoseal Connectors |
| ››16J-10-12 |
Switch Only - White Leads - Open 4psi Close 22psi |
R-22
| 16K-10-3 |
Open 425psi Close 325psi No Longer Available Use 16K-10-8 |
| 16K-10-8 |
High Pressure Cut Out Switch Asm with Econoseal Connectors |
| ››16K-10-7 |
Switch Only - Green Leads - Open 452psi Close 325psi |
| 16L-10-25 |
Low Pressure Cut Out Switch Asm with Econoseal Connectors |
| ››16L-10-24 |
Switch Only - BR/WH leads - Open 35psi Close 50psi |
| 16L-2-34 |
High Pressure Cut Out Switch with Electric Unloader and Packard Connectors from Carrier - Black Leads - Open 415-435psi Close 290-310psi |
| 16L-2-55 |
Low Pressure Cut Out Switch with Electric Unloader and Packard Connectors from Carrier - Red Leads - Open 3-9psi Close 22-28psi |
| 16L-2-39 |
UPS 1 (Unloader "Low" Pressure Switch) with Packard Connectors from Carrier - White and Green Leads - Close 53-56psi Open 64-68psi |
| 16L-2-69 |
UPS 2 (Unloader "Low" Pressure Switch) with Packard Connectors from Carrier - Black and Red Leads - Close 49-52psi Open 59-63psi |
| 16L-2-36 |
UPS 3 (Unloader "High" Pressure Switch) with Packard Connectors from Carrier - White Leads - Open 310-340psi |
| 16K-5-8 |
Condensor Motor Cut In Switch with 2-pin amp Connector |
| ››7K-8-550 |
Switch Only - Blue Leads - Close 325psi Open 250psi - Replaces 7K-8-539 Close 425psi Open 325psi |
R-134A
| 16L-10-122 |
High Pressure Cut Out Switch with Small A/C and Econoseal Connectors - Open 300psi Close 200psi |
| 16L-10-123 |
Low Pressure Cut Out Switch with Small A/C and Econoseal Connectors - Open 5psi Close 20psi |
| 16L-10-110 |
High Pressure Cut Out Switch with Packard Connectors from Carrier - Yellow Leads (12-00299-07) 20PS40-23 - Open 290-310psi Close 190-210psi |
| 16L-2-55 |
Low Pressure Cut Out Switch with Packard Connectors from Carrier - Red Leads (12-00299-01) 20PS39-19 - Open 3-9psi Close 22-28psi |
| 16L-10-108 |
UPS 1 (Unloader "Low' Pressure Switch) - Supplied with Conversion Kit SB2635A - Pink Leads (12-00299-08) 20PS40-34 - Close 20-26psi Open 35-45psi |
| 16L-2-58 |
UPS 1 (Unloader "Low" Pressure Switch) with Packard Connectors from Carrier (PBA Production) - Light Blue and Yellow Leads - Close 25-28psi Open 31-37psi |
| 16L-2-57 |
UPS 2 (Unloader "Low" Pressure Switch) with Packard Connectors from Carrier - Violet and Gray Leads - Close 21.5-24.5psi Open 28-34psi |
| 16L-10-109 |
UPS 3 (Unloader "High" Pressure Switch) with Packard Connectors from Carrier - Light Blue Leads - Close 265-285psi Open 205-235psi |
| 16L-10-129 |
Condensor Motor Cut In Switch with 2-pin amp Connector |
| ››16L-10-130 |
Switch Only - Blue Leads - Close 200psi Open 150psi |
| 7L-8-2022 |
Ambient Temperature Switch - Opens at 45° Closes at 55° (+-5%) |
| 16L-10-106 |
Electric Unloader Asm |
| ››16L-10-107 |
Solenoid Only |
If you have any questions, please call the MCI Customer Support Center at (800) 241-2947, or to place an order, contact MCI Service Parts at (800) 323-1238.
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Copyright 2004-2008 Motor Coach Industries Int'l, Inc. and its subsidiaries. All Rights Reserved
