Dometic BRISK AIR Duo-Therm 59516.33 Series Diagnostic Manual
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Dometic BRISK AIR Duo-Therm 59516.33 Series Diagnostic Manual

Dometic BRISK AIR Duo-Therm 59516.33 Series Diagnostic Manual

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DIAGNOSTIC SERVICE MANUAL
ROOF TOP AC/HP SYSTEMS
USA
SERVICE OFFICE
Dometic Corporation
2320 Industrial Parkway
Elkhart, IN 4656
574-294-25
CANADA
Dometic Distribution
46 Zatonski Unit 3
Brantford, Ontario
CANADA N3T 5L8
59-720-9578
Form No. 3307.000 08/07
©2007 Dometic Corporation
LaGrange, IN 4676
TROUBLESHOOTING
MECHANICAL CONTROL
COMFORT CONTROL
ANALOG CONTROL
3311071.000


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  • Page 1 MECHANICAL CONTROL COMFORT CONTROL ANALOG CONTROL SERVICE OFFICE Dometic Corporation 2320 Industrial Parkway Elkhart, IN 4656 574-294-25 CANADA Dometic Distribution 46 Zatonski Unit 3 Brantford, Ontario CANADA N3T 5L8 59-720-9578 Form No. 3307.000 08/07 ©2007 Dometic Corporation 3311071.000 LaGrange, IN 4676...
  • Page 2 This service manual is the result of the dedica- This manual has safety information and instruc- tion of The Dometic Corporation Technical staff tions to help users eliminate or reduce the risk and its engineers in giving service people the of accidents and injuries.

  • Page 3: Table Of Contents

    CONTENTS PAGE NO. Diagnostic Flow Chart ............. Section 1 Operation Mechanical Controls ................. 9 Analog Controls ..................9 Comfort Control Center ................10 Section 2 AC Power Requirements AC Voltage ....................13 Breaker ..................... 13 Unit Wiring ....................13 Field Wiring ....................16 Section 3 DC Voltage Requirements (Electronic) ............
  • Page 4 CONTENTS PAGE NO. Section 6 Configuration ..................... 29 Section 7 Thermostat Location ..................30 Section 8 Other Ambient Temperature ................31 Heat Gain ....................31 Blower Fan/Wheel Noise ................ 31 Water Leakage ..................31 Temperature Across Coil ................ 33 Amp Draw ....................33 Wiring .......................

  • Page 5: Operation

    SyMPTOM CAUSE PAGE # 1. Unit does not run; no fan no compressor Mechanical Control Operation AC Voltage Breaker Changeover Thermostat Selector Switch Wiring Analog Control Operation Ambient Temperature AC Voltage DC Voltage Breaker Changeover Thermostat Analog Thermostat Analog Power Module Wiring Comfort Control Configuration...
  • Page 6 SyMPTOM CAUSE PAGE # 3. Fan Operates; compressor tries to start, cycles “OFF” and hums again, or blows circuit ...Cont’d Analog Control AC Voltage Start Device Start Capacitor Run Capacitor Overload Compressor Comfort Control AC Voltage Start Device Start Capacitor Run Capacitor Overload Compressor...
  • Page 7 SyMPTOM CAUSE PAGE # 5. Compressor run, no fan...Con’t Analog Control Wiring Run Capacitor Motor Analog Thermostat/Cable Analog Power Module Comfort Control Wiring Run Capacitor Motor Comfort Control Power Module 6. Compressor runs, fan runs, but on one speed only Mechanical Controls Selector Switch Wiring...
  • Page 8 SyMPTOM CAUSE PAGE # 9. Unit operates in wrong mode (cool instead of heat or reversed...Con’t Mechanical Control Mechanical Thermostat Change Over Thermostat Wiring Reversing Valve Analog Control Analog Thermostat Change Over Thermostat Wiring Reversing Valve Comfort Control Ambient Temperature Sensor Configuration Wiring Reversing Valve...

  • Page 9: Mechanical Controls

    SECTION 1 AFTER SHUTTING THE AIR CONDITIONER DOWN WITH EITHER SELECTOR SWITCH OR THERMOSTAT, Operating Instructions WAIT AT LEAST TWO (2) MINUTES BEFORE RESTART- ING. THIS ALLOWS THE REFRIGERANT PRESSURE The operating instructions can change from one model TO EQUALIzE AND COMPRESSOR TO START EAS- number to another.

  • Page 10: Comfort Control Center

    • Auto Position: Air Conditioner fan runs whenever cool- The temperature rise across the heat strip should be 5° to ing is required and stops whenever cooling is not re- 7° degrees. If the temperature in the coach is 50 degrees quired.
  • Page 11 An incandescent light will illuminate the LCD area when a ion ZONE 2. You can select the desired temperature and selector button is pushed for easy reading at all times. fan speeds for each zone independently, thereby keeping your bedroom cooler than the front portion of the vehicle. To determine the number of established zones in your vehicle, depress the ZONE push-button.
  • Page 12 5. If your vehicle contains more than one ZONE, depress compressor only no fan, this is the DEFROST cycle. Dur- the ZONE push-button to select ZONE 2, and repeat ing the defrost cycle the hot refrigerant is sent to the out- procedures from Step .

  • Page 13: Ac Voltage

    Important: COMFORT CONTROL CENTER SPECIAL CONTROL The Comfort Control Center will FEATURES prevent operating FURNACE COOL A. Auto Fan: When AUTO FAN is selected, the fan speed FURNACE and HEAT PUMP at the same time. will be determined by the mode you are in. E.
  • Page 14 TyPICAL AIR CONDITIONER WIRING DIAGRAM TyPICAL AIR BOX WIRING 115 VAC FIELD WIRING TyPICAL CCC CONTROL BOARD WIRING 60 HZ 1 PH FACTORY WIRING USE COPPER LINE SPLICE CONDUCTORS ONLY FIELD WIRING -NOT USED ON SOME MODELS OPTIONAL WIRING -HEATPUMP MODELS ONLY FACTORY WIRING USE COPPER CONDUCTORS ONLY LINE SPLICE...
  • Page 15 Wiring Diagrams Wiring Diagram for 3107541.009 Cool & Furnace Wiring Diagram for 3107541.017 Cool, Furnace & Heat Strip Wiring Diagram for 3107546.008 Cool, Furnace & Heat Pump...

  • Page 16: Field Wiring

    2.4 Field Wiring C. The switch should be checked with an Ohmmeter to If the unit’s compressor or fan fails to operate, chances determine if continuity exists. The chart shows the are it is not receiving proper power. Be sure the power correct terminals to check.

  • Page 17: Change Over Thermostat (59146.Xxx)

    There are 3 different Analog thermostats being used to indicates it is defective and should be replaced. control Dometic and Duo-Therm roof top units. Air Condi- F. The heat/cool thermostat is very similar to the cooling tioners, Air Conditioners with Heat Strips, and Air Condi- only thermostat except it contains two sets of con- tioners with Heat Pumps.

  • Page 18: Analog Thermostat

    Analog Thermostat Testing 7. HEAT PUMP, (if unit so equipped) jumper between If nothing operates on the unit, turn the System Switch to GND and FAN, GND and HS/HP. The heat pump “OFF”, FAN Auto/On Switch to “AUTO”, and FAN HIGH/ should operate on the low fan speed.

  • Page 19: Cable Assembly

    If a telephone extension cable is used it will not light up the thermostat. Dometic does not provide the cable for the Comfort Control system. The cable is provided at time of install. A cable tester available 30727.007. To check DC voltage at the thermostat , remove from mounting bracket.

  • Page 20: Comfort Control Power Module

    Roof Top Heat Pump When the thermostat calls for that function and the Circuit is completed the light will illuminate. This is an energized circuit. Shock can occur if not tested properly. Testing is to be done by a qualified service technician. To verify circuits are being completed by the Analog con- trol board/box, you would first disconnect the 6-pin plug connector from the Analog Control Box.

  • Page 21: Start Device

    If the load shed option is to be used, wires must be run breaker to “ON” and start the air conditioner. When the from the load shed control to the Dometic A/C. If the com- compressor starts, there will be an amperage reading for pressor is not coming on disconnect the yellow wires if approximately one second or less.

  • Page 22: Start Relay

    4.10 Capacitors Duo-Therm Air Conditioners and Heat Pumps use three different capacitors: 1) compressor run capacitor 2) com- pressor start capacitor and 3) fan/blower capacitor. On some units the compressor run and fan/blower capacitor are in the same case. This is an energized circuit. Shock can occur if not tested properly.

  • Page 23: Blower Motor

    Use an ohmmeter to check for continuity through the and return to 5,000 Ohms. Reversing the lead will show overload device. If no continuity is found and the com- the same results. If a capacitor does not act this way, it is pressor is hot, allow 5 to 20 minutes for the compressor defective and should be replaced.

  • Page 24: Heat Strip Ducted

    4.15 Comfort Control Temperature Sensors 4.13 Ducted Heat Strip The comfort control uses three types of remote tempera- ture sensors. Remote room sensor used when multiple zones are used. Cold (FREEZE) Control sensor used to stop the inside coil from freezing. Ambient sensor used on Heat Pumps to tell the control system it is a heat pump and communi cate the outside temperature.

  • Page 25: Cold (Freeze) Control Sensor

    4.15.3 Ambient Sensor 4.15.2 Cold (Freeze) Control Red Two Pin Plug Blue Two Pin Plug The ambient sensor is the outside air temperature sen- The cold (freeze) control is used on both air conditioners sor and used on Comfort Control heat pumps only. This and heat pumps.

  • Page 26: Reversing Valve Heat Pump

    (3) has a mechanical problem. The first two items listed above are the most frequent causes of frost formation, and they are NOT covered under the Dometic Warranty policy. 5.3 Recirculation, Obstructions, Restric- tions The 14-1/4″...
  • Page 27 The best framing job is not going to stop frost from occur- ring if the cold air discharge is allowed to enter into the return air portion of the 14-1/4″ x 14-1/4″ (±1/8″) opening. Duo-Therm’s return air kits are designed to be installed tightly to the bottom of the base pan and ceiling template.
  • Page 28 BEND IN DUCT & OR KINKS FLASHLIGHT DUCT PIPE MIRROR RAFTER WIRE OR REGISTER CEILING JOIST BUNDLE REGISTER DUCT SIzE & REQUIREMENTS FOR 310500 & 3105935 RETURN AIR COVER REGISTER REQUIRED REGISTER REQUIRED SHORT DUCT RUN MINIMUM 1/3 TOTAL DUCT LENGTH REGISTERS TOTAL OUTLET AIR AREA 4 MIN.- 8 MAX...

  • Page 29: Air Distribution Box (Adb)

    When this opening is covered with a grill that is 67 per- cent open, the FREE AREA is (200 x 0.67), 34 square inches. Dometic return air kits are designed to have the ″ correct free area; however, some manufacturers use their ″...

  • Page 30: Thermostat Location

    SECTION 7 Proper Thermostat Location THE THERMOSTAT LOCATION IS VERy IMPORTANT FOR BALANCED TEMPERATURE CONTROL IN A RV. Today’s interior design of the RV has become both cos- metically more appealing and more efficient in its use of storage space. These improvements have generated complex interior space requirements which, in turn, have caused many RV’s to become a maze for heating and air conditioning circulation.

  • Page 31: Other

    cooking etc. Other factors to be taken into consideration The proper location for the thermostat or remote sensor as possible heat gain causes are the size of the air con- is 54″ from the floor and on an inside wall. It should be ditioner relative to the size of the coach;...
  • Page 32 Leakage occurs only when the unit is running during Over-tightening of the mounting bolts can cause the sty- high humidity conditions (80% relative humidity or rofoam blocks to act as a wedge and force the edges of higher). During high humidity conditions the evaporator the base upward.

  • Page 33: Temperature Across Coil

    National Electrical Code. 8.6 Amp Draw ***Dometic Corporation gives general All current Air Conditioners have 2 Data Tag on the unit guidelines generator requirements. These that will give specific information needed to calculate the...
  • Page 34 Typical Wiring 59146.XXX COMPRESSOR PASSED REVERSING VALVE MOTOR DIELECTRIC GRN/YEL O.L. 6 PIN CONN HERM RUN CAP GRN/YEL START PTCR SPLICE CAP IN-LINE COMP STARTER CONNECTOR NOT USED ON SOME MODELS T-STAT 3106605.029 Typical Wiring 59136.XXX COMPRESSOR SPLICE CAP REVERSING VALVE MOTOR IN-LINE CONNECTOR...
  • Page 35 Typical Wiring 59516.XXX 5791X.XXX Typical Wiring 60031X.XXX...
  • Page 36 Typical Wiring 630035.XXX PASSED COMPRESSOR REVERSING VALVE MOTOR DIELECTRIC GRN/YEL O.L. 9 PIN CONN HERM RUN CAP MOTOR STARTER GRN/YEL AMBIENT START CAP SWITCH IN-LINE CONNECTOR 3308032.032 Typical Wiring 630515.XXX and 630516.XXX...
  • Page 37 Typical Wiring 620515.XXX and 620525.XXX PASSED DIELECTRIC RJ-11 CABLE COMPRESSOR TO COMFORT GRN/YEL CONTROL FREEZE REMOTE O.L. CONTROL MOTOR SENSOR CABLE WHITE WHITE RUN CAP PTCR POWER HERM 3 AMP MODULE FUSE BOARD START CAP LOAD SHED LOAD SHED HEATER ELEMENT FURNACE NOT USED FURNACE...
  • Page 38 6206XX.XXX COMPRESSOR FREEZE CONTROL T9 T10 MOTOR RUN CAP HERM START CAP LIMIT SWITCH MOTOR STARTER PASSED SOLAR OR DIRTY FILTER DIELECTRIC IN LINE HEAT ACCESSORY INDICATOR RJ-11 COUPLERS IF USED NOT AVAILABLE LINE SPLICE ON SOME TO 115 VAC 1O 60 Hz. MODELS 3308949.019 TO FURNACE...
  • Page 39 Wiring Diagrams Analog Systems Wiring Diagram for 3107541.009 Cool & Furnace Wiring Diagram for 3107541.017 Cool, Furnace & Heat Strip Wiring Diagram for 3107546.008 Cool, Furnace & Heat Pump...

  • Page 40: Short Cycle

    Verify the duct connection at the unit is not leaking into tor coil to freeze up, causing the cold control or the the return air. Seal all problem areas. Reference Dometic thermostat to open the circuit to the compressor. Cold bulletin A20-6B.

  • Page 41: Quick Tips

    If there is still a problem go to control board testing. dio Frequency ) creating erratic operation or no operation Reference Dometic bulletin A27-8C. at all. Disconnect DC power to all the components in the coach and run a dedicated straight line DC to the CCC control system and try again.

  • Page 42: Principles Of Heat Pump Operation

    The reversing valve routes the low pressure movement system. The refrigerant leaves the inside coil as a high pressure vapor to the compressor through the suction line to start the heating liquid. process again. DPL/5M/894 © The Dometic Corporation 1994 Litho in USA #OS1748...

This manual is also suitable for:

Brisk air duo-therm 59516.53 seriesBrisk air duo-therm 59516.631 series

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