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Transcription:

T--357 Manual SERVICE PARTS/OPERATION for MCC Heater Units 12-XXXX Series T -357 REV. 05/2015 2012 Mobile Climate Control

Table of Contents SAFETY SUMMARY... Safety-1 UNIT SPECIFICATIONS... Spec-1 MAINTENANCE... Service-1 SERVICE PARTS... 1 INTRODUCTION... 1 CONFIGURATION IDENTIFICATION... 1 GENERAL NOTES... 1 1.1 MCC Heater Unit 12-11632... 2 1.2 MCC Heater 12-11634... 3 1.3 MCC Front Defroster 12-60046... 4 1.4 MCC Front Defroster 12-60056... 6 1.5 MCC Front Defroster 12-60058... 8 1.6 MCC Front Defroster 12-60060... 10 1.7 MCC Front Defroster 12-60064... 12 1.8 MCC Front Defroster 12-60070... 14 1.9 MCC Front Defroster 12-60076... 16 1.10 MCC Front Defroster 12-60078... 18 1.11 MCC Heater Unit 12-70276... 20 1.12 MCC Heater Unit 12-70278... 22 1.13 MCC Heater Unit 12-70282... 24 1.14 MCC Heater Unit 12-70284... 26 1.15 MCC Heater Unit 12-70286... 28 1.16 MCC Heater Unit 12-70288... 30 1.17 MCC Heater Unit 12-70292... 32 1.18 MCC Heater Unit 12-70294... 34 1.19 MCC Heater Unit 12-7558... 36 1.20 MCC Heater Unit 12-8340... 37 1.21 MCC Heater Unit 12-8364... 39 1.22 MCC Heater Unit 12-8370 & T12-8372... 41 1.23 MCC Heater Unit T12-8374... 43 List of Figures Figure 1-1 Schematic for Models 12-11632 & 12-11634... 45 Figure 1-2 Schematic for Models 12-60046... 46 Figure 1-3 Schematic for Models 12-60056... 47 Figure 1-4 Schematic for Models 12-60058... 48 Figure 1-5 Schematic for Models 12-60060... 49 Figure 1-6 Schematic for Models 12-60064... 50 Figure 1-7 Schematic for Models 12-60070... 51 Figure 1-8 Schematic for Models 12-60076... 52 2012 Mobile Climate Control 1

List of Figures (Continued) Figure 1-9 Schematic for Models 12-60078... 53 Figure 1-10 Schematic for Models 12-70276... 54 Figure 1-11 Schematic for Models 12-70278... 55 Figure 1-12 Schematic for Models 12-70282 & 12-70284... 56 Figure 1-13 Schematic for Models 12-70286,12-70288, 12-70292 &12-70294... 57 Figure 1-14 Schematic for Models 12-7558... 58 Figure 1-15 Schematic for Models 12-8340... 59 Figure 1-16 Schematic for Models 12-8364... 60 Figure 1-17 Schematic for Models 12-8370, T12-8372 & T12-8374... 61 2012 Mobile Climate Control 2

SAFETY SUMMARY GENERAL SAFETY NOTICES The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this manual. They are recommended precautions that must be understood and applied during operation and maintenance of the equipment covered herein. A listing of the specific warnings and cautions appearing elsewhere in the manual follows the general safety notices. FIRST AID An injury, no matter how slight, should never go unattended. Always obtain first aid or medical attention immediately. OPERATING PRECAUTIONS Always wear safety glasses. Keep hands, clothing and tools clear of the evaporator and condenser fans. No work should be performed on the unit until all circuit breakers and start-stop switches are placed in the OFF position, and power supply is disconnected. Always work in pairs. Never work on the equipment alone. In case of severe vibration or unusual noise, stop the unit and investigate. MAINTENANCE PRECAUTIONS Beware of unannounced starting of the evaporator and condenser fans. Do not open the unit cover before turning power off. Be sure power is turned off before working on motors, controllers, solenoid valves and electrical controls. Tag circuit breaker and power supply to prevent accidental energizing of circuit. Do not bypass any electrical safety devices, e.g. bridging an overload, or using any sort of jumper wires. Problems with the system should be diagnosed, and any necessary repairs performed, by qualified service personnel. When performing any arc welding on the unit, disconnect all wire harness connectors from the modules in the control box. Do not remove wire harness from the modules unless you are grounded to the unit frame with a static-safe wrist strap. In case of electrical fire, open circuit switch and extinguish with CO 2 (never use water). SPECIFIC WARNINGS AND CAUTIONS WARNING Be sure to observe warnings listed in the safety summary in the front of this manual before performing maintenance on the hvac system WARNING Read the entire procedure before beginning work. Park the coach on a level surface, with parking brake applied. Turn main electrical disconnect switch to the off position. 2012 Mobile Climate Control Safety-1

SPECIFIC WARNINGS AND CAUTIONS - Continued: WARNING Units must never be operated without an air filter present. Doing so will result in accumulation of dirt and debris in heater coil, blower, and electrical components. This will require more effort to remove and restore proper system operation, as well as increase potential for higher resistance at electrical components and connections. Higher resistance will result in higher thermal potential. WARNING Battery disconnect should be off. WARNING Extreme care must be taken when opening the coolant system. Coolant may be hot, and exposure to the skin and eyes could result in injury. CAUTION Use care when checking/manipulating wires/plugs attached to electrical components. Damage to the component or wiring harness can occur. 2012 Mobile Climate Control Safety-2

UNIT SPECIFICATIONS Model Heating Airflow Amps @27 vdc Amps @ 27 vdc Amps @ 27 vdc Weight Volts Motor Type Capacity BTU/H CFM Low Speed Medium Speed High Speed lbs. 12-11632 25,828 215 24 3.4 5.0 6.2 Brushless 11.5 12-11634 25,828 215 24 3.4 5.0 6.2 Brushless 11.5 12-60046 53,810 520 24 Variable Variable 13.8 Brushless 52 12-60056 50,500 467 24 N/A N/A 7.8 Brushless 52 12-60058 59,000 571 24 6.1 8.3 13 Brushless 52.3 12-60060 62,776 549 24 5.8 7.3 11.2 Brushless 46 12-60064 63,477 553 24 5.7 7.3 11.2 Brushless 38 12-60070 56,880 462 24 5.4 7.0 8.5 Brushless 42 12-60076 56,854 462 24 5.5 7.3 8.5 Brushless 38 12-60078 59,747 500 24 N/A N/A 8.2 Brushless 37 12-70276 38,080 327 24 5.9 7.6 N/A Brushless 35.5 12-70278 38,080 500 327 24 5.9 7.6 N/A Brushless 35.5 12-70282 43,000 389 24 3.8 N/A 10.3 Perm. Magnet 35 12-70284 43,000 389 24 3.8 N/A 10.3 Perm. Magnet 35 12-70286 44,860 420 24 5.7 N/A 11.6 Brushless 35 12-70288 44,860 420 24 5.7 N/A 11.6 Brushless 35 12-70292 41,380 388 24 5.6 N/A 11 Brushless 35 12-70294 41,380 388 24 5.6 N/A 11 Brushless 35 12-7558 66,000 500 24 4.5 7.2 10.5 Brushless 48.5 12-8340 33600 260 24 1.9 N/A 4.9 Brushless N/A 12-8364 33600 260 24 1.9 N/A 4.9 Brushless N/A 12-8370 42,000 362 24 2.5 N/A 6.3 Brushless 30 T12-8372 37,420 303.5 24 2.1 N/A 5.4 Brushless 30 T12-8374 35,053 276 24 1.9 N/A 5.0 Brushless 30 Note: Heating Capacity rated at 3.6 GPM @ 150 FΔ Airflow Rated at 27 VDC/ 0 Static Pressure (Bench Test). 2012 Mobile Climate Control Spec -1

MAINTENANCE GENERAL NOTICES The MCC Heater units are virtually maintenance free. However, the following items should be followed to help ensure maximum efficiency of system, as well as avoid potential system related problems. NOTE: Frequency associated with maintenance intervals will vary according to operational conditions and geographic regions. Inspection frequency should be scheduled accordingly. Air Filters All units are equipped with air filters to prevent foreign materials from entering system components. Filters should be cleaned or replaced as part of a regular scheduled maintenance program. Failure to maintain air filters will result in diminished system capacity related to lack of airflow. WARNING Units must never be operated without an air filter present. Doing so will result in accumulation of dirt and debris in heater coil, blower, and electrical components. This will require more effort to remove and restore proper system operation, as well as increase potential for higher resistance at electrical components and connections. Higher resistance will result in higher thermal potential. Heater Coils Proper maintenance of air filters will reduce the potential of dirt and debris entering the heater coils. Heater coils are of a tube and fin design. If the coils are determined to require cleaning, only low pressure air, or vacuuming should be used as a method of cleaning. Care should be taken not to bend the fins of heater coil in the process. If this occurs, the coil will have diminished airflow and capacity, and will require the fins to be combed to restore to designed requirements. Blower/Fan Blowers/Fans should be inspected during routine maintenance for abnormal vibration and smooth rotation. Proper blower speed operation should be part of this inspection. If dirt and debris build up is found, the motor and blower should be wiped clean. Blowers are supplied as an assembly, and if improper operation is determined, they should be replaced as an assembly. Please refer to the parts section of this manual to determine proper replacement part number. Electrical Wiring and Connections WARNING Be sure power is turned off before working on motors, controllers, solenoid valves and electrical controls. Tag circuit breaker and power supply to prevent accidental energizing of circuit. Electrical Inspection of all electrical connections and harnesses should be part of the routine maintenance procedures. Wiring should be inspected for any signs of chafing and/or dirt and corrosion. If any occurrences of these conditions are observed, the deficiencies must be corrected to reduce potential related risks that may occur. Actuator Motors If equipped, Actuator motors and associated linkages should be checked for proper operation to avoid potential problems or failures. 2012 Mobile Climate Control Service -1

SECTION 1 SERVICE PARTS INTRODUCTION This section provides identification of service replacement parts for the Mobile Climate Control Heater/Defrosters with part numbers beginning with 12. CONFIGURATION IDENTIFICATION Unit identification information is provided on a plate (decal) located on the unit assembly. This plate provides the unit model number and the unit serial number. The model number identifies the unit configuration and differences in detailed parts. GENERAL NOTES To find replacement parts, determine major group in which replacement parts are located and turn to the appropriate page for the illustrated breakdown of the replacement parts. The following letter designations are used to classify parts throughout this list. Parts can be obtained by ordering from the following website: www.mcc-hvac.com A/R As Required N.S. Not Shown on Illustration NSI Non-Stock Item (Items may not be available for purchase, or may require extended lead times) NSS Not Sold Separately - Order next higher assembly or kit. P-- Suffix P-- added to part number means part is available in packaged quantity only. PL Purchase Locally SS Stainless Steel SV Suffix SV added to part number designates service replacement part. 2012 Mobile Climate Control 1

1.1 MCC Heater Unit 12-11632 8 1 10 4 5 9 3 2 6 7 1 13430 Latch 1 2 13431 Latch Hook 1 3 14524 Hinge 2 4 15-0484 Blower Assembly 1 5 25-2530 Al. Housed Resistor 1 6 16534 Cover Plug 2 7 22-1222 Coil Assembly 1 8 26-1619 Permatron Filter 1 9 28-0007 Grommet 1-3/8 (34.92mm) 2 10 28-0404 Protective Cap, ⅞ (22.22mm) 2 N.S. 25-3345 Wire Harness NSI 2012 Mobile Climate Control 2

1.2 MCC Heater 12-11634 8 1 4 5 6 3 2 7 9 10 1 13430 Latch 1 2 13431 Latch Hook 1 3 14524 Hinge 2 4 15-0484 Blower Assembly 1 5 25-2530 Al. Housed Resistor 1 6 16534 Cover Plug 2 7 22-1222 Coil Assembly 1 8 26-1619 Permatron Filter 1 9 28-0007 Grommet 1-3/8 (34.92mm) 2 10 28-0404 Protective Cap, ⅞ (22.22mm) 2 N.S. 25-3345 Wire Harness NSI 2012 Mobile Climate Control 3

1.3 MCC Front Defroster 12-60046 6 16 14 20 12 7 5 19 17 1 10 13 4 21 18 11 11 9 15 2 3 22 8 1 15-1982 Blower Assembly, 24V Includes: 1 2 22-0226 Heater Coil 1 3 26-0265 Air Filter Assembly 1 4 24-1257 Link Arm 1 5 24-1258 Flapper Arm 1 6 25-1124 Relay 24V 1 7 25-0623 Lever 1 8 26-1714 Valve Assembly 1 9 28-0293 Grommet 2 2012 Mobile Climate Control 4

1.3 Front Defroster 12-60046 (Parts List) Continued: 10 28-0045 Grommet 1 11 28-0007 Grommet 1 ⅜ (34.9mm) 6 12 28-0005 Grommet ⅝ (15.9mm) 1 13 28-0029 Bushing, ¼ (6.4mm) 1 14 28-0079 RubberSeal,56.7in.(1440mm) 1 15 28-0014 Grommet ⅜ (9.5mm) 1 16 28-0326 Snap Bushing, 3/16 4 17 29-0075 Receptacle 3 18 29-0120 Stud Oval Slotted, SS 3 19 29-0077 Retainer 3 20 35-0437 24V Controller Assembly 1 21 29-0443 Retaining Ring 1 22 27-2660 Silicone Hose (All) A/R N.S. 25-3056 Wire Harness NSI 2012 Mobile Climate Control 5

1.4 MCC Front Defroster 12-60056 22 6 12 13 15 14 16 15 1 33 18 19 17 11 10 15 16 8 5 3 9 7 11 2 4 21 1 15-15078 Blower Assembly, 24V Includes: 1 2 22-0226 Heater Coil 1 3 26-0265 Air Filter Assembly 1 4 26-0277 Bushing 1 5 25-0022 Clip 1 6 25-1124 Relay 24V 1 7 26-1714 Bowden Cable Valve Assembly 1 8 27-0911 Drain Hose 12 in. (304.8mm) 1 9 27-0910 Gear Clamp 3/4 in. (19.05 mm) 4 2012 Mobile Climate Control 6

1.4 Front Defroster 12-60056 (Parts List) Continued: 10 28-0004 Grommet ⅜ (9.53 mm) 2 11 28-0005 Grommet ⅝ (15.9mm) 6 12 28-0079 Rubber Seal, 2.23 in. (56.7mm) 1 13 28-0293 Grommet 1 14 28-0045 Grommet 1 15 28-0326 Snap Bushing, 3/16 4 16 29-0424 Pushnut, 3/16 3 17 29-0075 Receptacle 3 18 29-0120 Stud Oval Slotted, SS 3 19 29-0077 Retainer 3 20 29-0424 Hole Plug 3/8 1 21 27-0238 Silicone Hose A/R 22 25-3354 Wire Harness NSI 2012 Mobile Climate Control 7

1.5 MCC Front Defroster 12-60058 18 8 9 10 11,24 20 19 25 17 26 1,2 15 17 6 21,23 5 22 16 20 13 7 4 14 27 12 3 1 15-19176 Blower Assembly, 24V Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-1266 Heater Coil 1 4 23-0611 Air Filter Assembly 1 5 24-1257 Link Arm 1 6 24-1258 Flapper Arm 1 7 25-0022 Clip 1 8 25-0232 Rectifier 1 9 25-1124 Relay 24V 2 2012 Mobile Climate Control 8

1.5 Front Defroster 12-60058 (Parts List) Continued: 10 25-1309 Lever Assembly 1 11 25-2660 Motor Actuator 24V 1 12 26-1843 Motorized Valve Assembly 1 13 27-0911 Drain Hose 12 in. (304.8mm) 1 14 27-3176 Constant Torque Clamp.5-1.0 in. (14-27mm) 4 15 28-0004 Grommet 1 16 28-0005 Grommet ⅝ (15.9mm) 6 17 28-0029 Bushing, ¼ (6.4mm) 2 18 28-0079 Rubber Seal, 2.23 in. (56.7mm) 1 19 28-0293 Grommet 1 20 28-0326 Snap Bushing, 3/16 3 21 29-0075 Receptacle 3 22 29-0076 Stud Oval Slotted, SS 3 23 29-0077 Retainer 3 24 29-0124 Nylon Spacer ½ 3 25 29-0424 Pushnut 3/16 2 26 29-0443 Retaining Ring 1 27 37-0035 4 Ply Silicone Hose A/R N.S. 25-3347 Wire Harness NSI 2012 Mobile Climate Control 9

1.6 MCC Front Defroster 12-60060 6 7 9 11 13 9 8 4 12 5 10 3 1,2 1 15-15064 Blower Assembly, 24V Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-1329 Heater Coil 1 4 23-0657 Air Filter Assembly 1 5 29-0076 Stud, Oval Slotted (SS) 3 6 29-0075 Receptacle 3 7 25-1124 Relay 24V 2 N.S. 25-3414 Wiring Harness NSI 2012 Mobile Climate Control 10

1.6 MCC Front Defroster 12-60060: Continued 8 28-0326 Snap Bushing, 3/16 2 9 25-2660 Motor Actuator 24V 2 10 46-0025 Motorized Valve Assembly 1 11 29-0124 Nylon Spacer, ½ (13mm) 6 12 28-0007 Grommet 1 ⅜ (34.9mm) 5 13 28-0045 Grommet 1 2012 Mobile Climate Control 11

1.7 MCC Front Defroster 12-60064 7 9,11 8 6 9 3 4 5 10 12 1,2 1 15-15064 Blower Assembly, 24V Includes: 1 2 25-3191 Al. Housed Resistor 1 3 22-1355 Heater Coil 1 4 23-0707 Air Filter 1 5 29-1110 Stud, Oval Slotted (SS) 3 6 29-0075 Receptacle 3 7 25-1124 Relay 24V 3 N.S. 25-3513 Wiring Harness NSI 2012 Mobile Climate Control 12

1.7 MCC Front Defroster 12-60064: Continued 8 28-0326 Snap Bushing, 3/16 2 9 25-2660 Motor Actuator 24V 2 10 46-0047 Heater Control Valve Assembly 1 11 29-0124 Nylon Spacer, ½ 6 12 28-0008 Grommet 2 2012 Mobile Climate Control 13

1.8 MCC Front Defroster 12-60070 7 6 3 5 12 10 12 9 8 10 1,2 14 4 14 13 11 1 15-15082 Blower Assembly, 24V Includes: 1 2 25-3191 Al. Housed Resistor 1 3 22-1355 Heater Coil 1 4 23-0707 Air Filter (Permatron) 1 5 29-1110 Stud, Oval Slotted (SS) 3 6 29-0075 Receptacle 3 7 25-1124 Relay 24V 3 N.S. 25-3513 Wiring Harness NSI 2012 Mobile Climate Control 14

1.8 MCC Front Defroster 12-60070: Continued 8 28-0326 Snap Bushing, 3/16 2 9 28-0011 Snap In Plug, ½ 1 10 25-2660 Motor Actuator 24V 2 11 46-0047 Heater Control Valve Assembly 1 12 29-0124 Nylon Spacer, ½ 6 13 29-0558 Nylon Spacer, ⅞ 1 14 28-0008 Grommet 2 2012 Mobile Climate Control 15

1.9 MCC Front Defroster 12-60076 8 12 9 10 3 7 1,2 5,6 15 14 13 11 4 1 15-15082 Blower Assembly, 24V Includes: 1 2 25-3191 Al. Housed Resistor 1 3 22-1355 Heater Coil 1 4 23-0707 Air Filter (Permatron) 1 5 29-1110 Stud, Oval Slotted (SS) 3 6 29-0077 Retainer 3 7 29-0075 Receptacle 3 8 25-1124 Relay 24V 3 N.S. 25-3513 Wiring Harness NSI 2012 Mobile Climate Control 16

1.9 MCC Front Defroster 12-60076: Continued 9 28-0326 Snap Bushing, 3/16 2 10 25-2660 Motor Actuator 24V 2 11 46-0047 Heater Control Valve Assembly 1 12 29-0124 Nylon Spacer, ½ 6 13 39-0008 Gear Clamp, ¾ 4 Ply 4 14 28-0008 Grommet 2 15 29-0437 Panel-Coil Clip 2 2012 Mobile Climate Control 17

1.10 MCC Front Defroster 12-60078 7 8 9 11 6 2 4,5 15 10 12 13 14 1 3 1 15-15078 Blower Assembly, 24V Includes: 1 2 22-1355 Heater Coil 1 3 23-0707 Air Filter (Permatron) 1 4 29-1110 Stud, Oval Slotted (SS) 3 5 29-0077 Retainer 3 6 29-0075 Receptacle 3 7 25-1124 Relay 24V 3 N.S. T25-3589 Wiring Harness NSI 2012 Mobile Climate Control 18

1.10 MCC Front Defroster 12-60078: Continued 8 28-0326 Snap Bushing, 3/16 1 9 25-2660 Motor Actuator 24V 2 10 46-0047 Heater Control Valve Assembly 1 11 29-0124 Nylon Spacer, ½ 3 12 39-0008 Gear Clamp, ¾ 4 Ply 4 13 27-2660 Hose, 4 Ply A/R 14 28-0008 Grommet 2 15 29-0437 Panel-Coil Clip 2 2012 Mobile Climate Control 19

1.11 MCC Heater Unit 12-70276 8 10 5 7 9 4 17 14 1,2 18 15 15 16 16 12 13,19 6 7 11 3 1 15-19190 Blower Assembly 24V, Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-0895 Heater Coil Assembly 1 4 24-3344 Jumper Harness 1 5 26-1292 Air Filter 1 6 28-0331 Hole Plug ½ 1 7 28-0005 Grommet ⅝ 2 8 25-0219 Relay 24V 2 9 25-3343 Wiring Harness NSI 2012 Mobile Climate Control 20

1.11 Heater Unit 12-70276 (Parts List) Continued: 10 25-0006 Junction Block 1 11 28-0008 Grommet 2 12 28-0045 Grommet 1 13 28-0335 Cable Clamp 1 14 29-0075 Receptacle 1 15 29-0077 Retainer 6 16 29-1110 Stud, Oval Slotted 6 17 35-0835 Temperature Sensor 1 18 28-0330 ⅜ HolePlug 2 19 29-0124 Spacer ½ 1 2012 Mobile Climate Control 21

1.12 MCC Heater Unit 12-70278 4 7 5 13 12 11 15 11 6 14 1,2 12 13 10 8 9 3 1 15-19190 Blower Assembly 24V, Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-0242 Heater Coil Assembly 1 4 25-0219 Relay 24V 2 5 25-3343 Wiring Harness NSI 6 25-0006 Junction Block 1 7 26-1292 Air Filter 1 8 28-0005 Grommet ⅝ 1 9 28-0008 Grommet 2 2012 Mobile Climate Control 22

1.12 Heater Unit 12-70278 (Parts List) Continued: 10 28-0045 Grommet 1 11 29-0075 Receptacle 1 12 29-0077 Retainer 1 13 29-1110 Stud, Oval Slotted 1 14 28-0330 ⅜ HolePlug 1 15 28-0331 ½ Hole Plug 1 2012 Mobile Climate Control 23

1.13 MCC Heater Unit 12-70282 11,12 9 10 1,2 5 4 8 3 13 6 7 14 1 15-19196 Blower Assembly 24V, Includes: 1 2 25-2841 Al. Housed Resistor 1 3 22-0242 Heater Coil Assembly 1 4 25-0251 Relay, 12V 2 N.S. 25-3363 Wiring Harness NSI 5 26-0264 Air Filter 1 6 28-0005 Grommet ⅝ 1 7 28-0008 Grommet 2 8 28-0045 Grommet 1 2012 Mobile Climate Control 24

1.13 Heater Unit 12-70282 (Parts List Continued): 9 28-0330 ⅜ HolePlug 1 10 28-0331 ½ Hole Plug 1 11 29-0075 Receptacle 6 12 29-0077 Retainer 6 13 29-1031 Knurled Nut ¼ 8 14 29-1110 Stud Oval Slotted 6 2012 Mobile Climate Control 25

1.14 MCC Heater Unit 12-70284 5 4 9 13 1,2 8 6 10,11 3 12 7 1 15-19196 Blower Assembly 24V, Includes: 1 2 25-2841 Al. Housed Resistor 1 3 22-0895 Heater Coil Assembly 1 4 25-0251 Relay, 12V 2 N.S. 25-3363 Wiring Harness NSI 5 26-0264 Air Filter 1 6 28-0005 Grommet ⅝ 1 7 28-0008 Grommet 2 8 28-0014 Grommet ⅜ 1 2012 Mobile Climate Control 26

1.14 Heater Unit 12-70284 (Parts List Continued): 9 28-0045 Grommet 1 10 29-0075 Receptacle 6 11 29-0077 Retainer 6 12 29-1031 Knurled Nut ¼ 8 13 29-1110 Stud Oval Slotted 6 2012 Mobile Climate Control 27

1.15 MCC Heater Unit 12-70286 10 5 4 9 1 2 12 11 13 3 8 6 7 14 1 15-19190 Blower Assembly 24V, Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-0895 Heater Coil Assembly 1 N.S. 25-3384 Wiring Harness NSI 4 26-0264 Air Filter 1 5 28-0331 Hole Plug ½ 1 6 28-0005 Grommet ⅝ 1 7 28-0008 Grommet 2 8 28-0014 Grommet ⅜ 1 2012 Mobile Climate Control 28

1.15 Heater Unit 12-70286 (Parts List) Continued: 9 28-0045 Grommet 1 10 25-0219 Relay 24V 2 11 29-0075 Receptacle 6 12 29-0077 Retainer 6 13 29-1110 Stud, Oval Slotted 6 14 29-1031 Knurled Nut, ¼ x 20 8 2012 Mobile Climate Control 29

1.16 MCC Heater Unit 12-70288 10 5 4 9 2 1 11 12 13 3 8 6 7 14 1 15-19190 Blower Assembly 24V, Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-0242 Heater Coil Assembly 1 N.S. 25-3384 Wiring Harness NSI 4 26-0264 Air Filter 1 5 28-0331 Hole Plug ½ 1 6 28-0005 Grommet ⅝ 1 7 28-0008 Grommet 2 8 28-0014 Grommet ⅜ 1 2012 Mobile Climate Control 30

1.16 Heater Unit 12-70288 (Parts List) Continued: 9 28-0045 Grommet 1 10 25-0219 Relay 24V 2 11 29-0075 Receptacle 6 12 29-0077 Retainer 6 13 29-1110 Stud, Oval Slotted 6 14 29-1031 Knurled Nut, ¼ x 20 8 2012 Mobile Climate Control 31

1.17 MCC Heater Unit 12-70292 1 6 2 11 5 8 4 9 7 10 13 12 3 14 1 15-19190 Blower Assembly 24V, Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-0242 Heater Coil Assembly 1 N.S. 25-3384 Wiring Harness NSI 4 26-0264 Air Filter 1 5 28-0331 Hole Plug ½ 1 6 28-0330 Hole Plug ⅜ 1 7 28-0005 Grommet ⅝ 1 8 28-0008 Grommet 2 2012 Mobile Climate Control 32

1.17 Heater Unit 12-70292 (Parts List) Continued: 9 28-0045 Grommet 1 10 25-0219 Relay 24V 2 11 29-0075 Receptacle 6 12 29-0077 Retainer 6 13 29-1110 Stud, Oval Slotted 6 14 29-1031 Knurled Nut, ¼ x 20 8 2012 Mobile Climate Control 33

1.18 MCC Heater Unit 12-70294 10 12 11 5 1 2 9 4 3 6 7 8 13 14 1 15-19190 Blower Assembly 24V, Includes: 1 2 25-2848 Al. Housed Resistor 1 3 22-0242 Heater Coil Assembly 1 N.S. 25-3384 Wiring Harness NSI 4 26-0264 Air Filter 1 5 28-0331 Hole Plug ½ 1 6 28-0330 Hole Plug ⅜ 1 7 28-0005 Grommet ⅝ 1 8 28-0008 Grommet 2 2012 Mobile Climate Control 34

1.18 Heater Unit 12-70294 (Parts List) Continued: 9 28-0045 Grommet 1 10 25-0219 Relay 24V 2 11 29-0075 Receptacle 6 12 29-0077 Retainer 6 13 29-1110 Stud, Oval Slotted 6 14 29-1031 Knurled Nut, ¼ x 20 8 2012 Mobile Climate Control 35

1.19 MCC Heater Unit 12-7558 9 1,2 6 8 11 3 10 7 4 5 1 15-3020 Blower Assembly 24V, Includes: 1 2 25-2530 Al. Housed Resistor 1 3 22-1089 Heater Coil Assembly 1 4 25-3450 Wiring Harness NSI 5 26-0259 Air Filter 1 6 46-0031 Motorized Valve Assembly (Heater) 1 7 28-0029 Bushing, 3/16 Dia. X 5/16 LG. 4 8 28-0004 Grommet 1 9 35-0604 Brushless Controller, 24VDC 1 10 23-0040 Hose, Air, 4 (Length 25.6 (650 mm)) 1 11 27-0183 Gear Clamp, 4 1 2012 Mobile Climate Control 36

1.20 MCC Heater Unit 12-8340 11 4 10 8 1 7 2 3 5 6 9 1 15-05038 Blower Assembly 24V, Includes: 1 2 22-1256 Heater Coil Assembly 1 3 25-1124 Relay, 24V 2 N.S. 25-3308 Wiring Harness NSI 4 26-1452 Air Filter 1 5 28-0005 Grommet ⅝ 1 6 28-0008 Grommet 2 7 28-0045 Grommet 1 2012 Mobile Climate Control 37

1.20 Heater Unit 12-8340 Parts List Continued): 8 29-0075 Receptacle 1 9 29-1031 Knurled Nut ¼ 9 10 29-1110 Stud Oval Slotted 1 11 35-0835 Sensor, Temperature 1 2012 Mobile Climate Control 38

1.21 MCC Heater Unit 12-8364 1 10 8 7 3 4 5 6 2 9 1 15-05038 Blower Assembly 24V, Includes: 1 2 22-1256 Heater Coil Assembly 1 3 25-1124 Relay, 24V 2 N.S. 25-3406 Wiring Harness NSI 4 26-1452 Air Filter 1 5 28-0005 Grommet ⅝ 1 6 28-0008 Grommet 2 7 28-0045 Grommet 1 2012 Mobile Climate Control 39

1.21 Heater Unit 12-8364 Parts List Continued): 8 29-0075 Receptacle 1 9 29-1031 Knurled Nut ¼ 9 10 29-1110 Stud Oval Slotted 1 2012 Mobile Climate Control 40

1.22 MCC Heater Unit 12-8370 & T12-8372 4 3 8 2 7 10,11 9 13 6 5 14 1 12 1 15-05038 Blower Assembly 24V, Includes: 1 2 22-1242 Heater Coil Assembly 1 3 25-0219 Relay, 24V 2 N.S. 25-2900 Wiring Harness NSI 4 26-1452 Air Filter 1 5 28-0005 Grommet, ⅝ 1 6 28-0008 Grommet 2 7 28-0045 Grommet 1 8 28-0014 Grommet, ⅜ 1 2012 Mobile Climate Control 41

1.22 Heater Unit 12-8370 & T12-8372 Parts List Continued): 9 29-0075 Receptacle 1 10 29-1110 Stud Oval Slotted 1 11 29-0077 Retainer 1 12 29-0125 Nylon Spacer, 1 x ½ DIA 1 13 35-0837 Sensor Assembly 1 14 29-1031 Round Knurled Nut 8 2012 Mobile Climate Control 42

1.23 MCC Heater Unit T12-8374 4 3 7 8 2 9 10,11 13 6 5 1 12 14 1 15-05038 Blower Assembly 24V, Includes: 1 2 22-1242 Heater Coil Assembly 1 3 25-0219 Relay, 24V 2 N.S. 25-2900 Wiring Harness NSI 4 26-1452 Air Filter 1 5 28-0005 Grommet, ⅝ 1 6 28-0008 Grommet 2 7 28-0045 Grommet 1 8 28-0014 Grommet, ⅜ 1 2012 Mobile Climate Control 43

1.23 Heater Unit T12-8374 Parts List Continued): 9 29-0075 Receptacle 1 10 29-1110 Stud Oval Slotted 1 11 29-0077 Retainer 1 12 29-0125 Nylon Spacer, 1 x ½ DIA 1 13 35-0837 Sensor Assembly 1 14 29-1031 Round Knurled Nut 8 2012 Mobile Climate Control 44

Figure 1-1 Schematic for Models 12-11632 & 12-11634 Schematic 12-11632S & Schematic 12-11634S 2012 Mobile Climate Control 45

Figure 1-2 Schematic for Models 12-60046 Schematic 12-60046S 2012 Mobile Climate Control 46

O O Figure 1-3 Schematic for Models 12-60056 Schematic 12-60056S 2012 Mobile Climate Control 47

Figure 1-4 Schematic for Models 12-60058 Schematic 12-60058S 2012 Mobile Climate Control 48

Figure 1-5 Schematic for Models 12-60060 Schematic 12-60060S 2012 Mobile Climate Control 49

Figure 1-6 Schematic for Models 12-60064 Schematic 12-60064S 2012 Mobile Climate Control 50

Figure 1-7 Schematic for Models 12-60070 Schematic 12-60070S 2012 Mobile Climate Control 51

Figure 1-8 Schematic for Models 12-60076 Schematic 12-60076S 2012 Mobile Climate Control 52

Figure 1-9 Schematic for Models 12-60078 Schematic 12-60078S 2012 Mobile Climate Control 53

Figure 1-10 Schematic for Models 12-70276 Schematic 12-70276S 2012 Mobile Climate Control 54

Figure 1-11 Schematic for Models 12-70278 Schematic 12-70278S 2012 Mobile Climate Control 55

Schematics 12-70282S & 12-70284S Figure 1-12 Schematic for Models 12-70282 & 12-70284 2012 Mobile Climate Control 56

Schematics 12-70286S, 12-70288S, 12-70292S & 12-70294S Figure 1-13 Schematic for Models 12-70286,12-70288, 12-70292 &12-70294 2012 Mobile Climate Control 57

: : Figure 1-14 Schematic for Models 12-7558 Schematic 12-7558S 2012 Mobile Climate Control 58

: : Figure 1-15 Schematic for Models 12-8340 : Schematic 12-8340S 2012 Mobile Climate Control 59

: : Figure 1-16 Schematic for Models 12-8364 : Schematic 12-8364S 2012 Mobile Climate Control 60

Schematic 12-8370S, T12-8372S & T12-8374S Figure 1-17 Schematic for Models 12-8370, T12-8372 & T12-8374 : : : 2012 Mobile Climate Control 61

INDEX Part# Page# Part# Page# 1 13430 2, 3 13431 2, 3 14524 2, 3 15-0484 2, 3 15-05038 37, 39, 41, 43 15-15064 10, 12 15-15078 6, 18 15-15082 14, 16 15-19176 8 15-19190 20, 22, 28, 30, 32, 34 15-19196 24, 26 15-1982 4 15-3020 36 16534 2, 3 2 22-0226 4, 6 22-0242 22, 24, 30, 32, 34 22-0895 20, 26, 28 22-1089 36 22-1222 2, 3 22-1242 41, 43 22-1256 37, 39 22-1266 8 22-1329 10 22-1355 12, 14, 16, 18 23-0040 36 23-0611 8 23-0657 10 23-0707 12, 14, 16, 18 24-1257 4, 8 24-1258 4, 8 24-3344 20 25-0006 21, 22 25-0022 6, 8 25-0219 20, 22, 29, 31, 33, 35, 41, 43 25-0232 8 25-0251 24, 26 25-0623 4 25-1124 4, 6, 8, 10, 12, 14, 16, 18, 37, 39 25-1309 9 25-2530 2, 3, 36 25-2660 9, 11, 13, 15, 17, 19 25-2841 24, 26 25-2848 8, 10, 20, 22, 28, 30, 32, 34 25-2900 41, 43 25-3056 5 25-3191 12, 14, 16 25-3308 37 25-3343 20, 22 25-3345 2, 3 25-3347 9 25-3354 7 25-3363 24, 26 25-3384 28, 30, 32, 34 25-3406 39 25-3414 10 25-3450 36 25-3513 12, 14, 16 26-0259 36 26-0264 24, 26, 28, 30, 32, 34 26-0265 4, 6 26-0277 6 26-1292 20, 22 26-1452 37, 39, 41, 43 26-1619 2, 3 2012 Mobile Climate Control I

INDEX Part# Page# Part# Page# 26-1714 4, 6 26-1843 9 27-0183 36 27-0238 7 27-0910 6 27-0911 6, 9 27-2660 5, 19 27-3176 9 28-0004 7, 9, 36 28-0005 5, 7, 9, 20, 22, 24, 26, 28, 30, 32, 34, 37, 39, 41, 43 28-0007 2, 3, 5, 11 28-0008 13, 15, 17, 19, 21, 22, 24, 26, 28, 30, 32, 34, 37, 39, 41, 43 28-0011 15 28-0014 5, 26, 28, 30, 41, 43 28-0029 5, 9, 36 28-0045 5, 7, 11, 21, 23, 24, 27, 29, 31, 33, 35, 37, 39, 41, 43 28-0079 5, 7, 9 28-0293 4, 7, 9 28-0326 5, 7, 9, 11, 13, 15, 17, 19 28-0330 21, 23, 25, 32, 34 28-0331 20, 23, 25, 28, 30, 32, 34 28-0335 21 28-0404 2, 3 29-0075 5, 7, 9, 10, 12, 14, 16, 18, 21, 23, 25, 27, 29, 31, 33, 35, 38, 40, 42, 44 29-0076 9, 10 29-0077 5, 7, 9, 16, 18, 21, 23, 25, 27, 29, 31, 33, 35, 42, 44 29-0120 5, 7 29-0124 9, 11, 13, 15, 17, 19, 21 29-0125 42, 44 29-0424 7, 9 29-0437 19 29-0443 5, 9 29-0558 15 29-1031 25, 27, 29, 31, 33, 35, 38, 40, 42, 44 29-1110 12, 14, 16, 18, 21, 23, 25, 27, 29, 31, 33, 35, 38, 40, 42, 44 3 35-0437 5 35-0604 36 35-0835 21, 38 35-0837 42, 44 37-0035 9 39-0008 19 4 46-0025 11 46-0031 36 46-0047 13, 15, 17, 19 T T25-3589 18 2012 Mobile Climate Control II

Every driver deserves the best possible vehicle climate with MCC products MCC provides exceptional performance in mobile climate comfort. www.mcc-hvac.com Member of MCC Group S Certified ISO 9001 and ISO 1 4001. Specifications subject to change without notice. MCC is a registered trademark. 3189 Farmtrail Road York PA 17406 USA Tel: 1--800--673--2431 Fax: 1--717--764--0401 2012 Mobile Climate Control

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