SERVICE MANUAL FOR MODEL RM-45-SD
REQUIRED TOOLS CORDLESS DRILL SCREWDRIVER SET WITH SOCKET OF 9/32” CUTTING TUBING VISE GRIP OPEN WRENCH OF 1/2” PIERCING VALVE RATCHET WITH SOCKET OF 7/16” PRECISION FLAT BLADE SLOTTED SCREWDRIVER
REQUIRED EQUIPMENT OXIACETILENE EQUIPMENT MANIFOLD HIGH & LOW GAUGE PRESSURE KIT DRY NITROGEN TANK LEAK DETECTOR VACUUM PUMP WITH MICRON GAUGE REFRIGERANT RECOVERY MACHINE
CONTENTS • Instructions to replace LED Power Supply. •Instructions to replace high intensity LED flexible strips. • Instructions to replace interior LED strips lights. • Instructions to replace condenser fan motor. • Instructions to replace evaporator fan motor. • Instructions to replace electronic thermostat. • Instructions to replace thermostat ambient sensor. • Instructions to replace starting relay, overload protector and starting capacitor. • Instructions to replace compressor.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace LED Power Supply. 1. Unscrew the two screws that hold in place the top of the header sign , using a Phillips screwdriver # 2 2. Pull out the top of the header sign. 3. Grab the acrylic sign and pull it out.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace LED Power Supply. 4. In order to remove the Power Supply, unscrew the two screws that hold it in place using a Phillips screwdriver # 2. 5. Disconnect the Power Supply’s electrical connector. 6. To install the new Power Supply reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace High Intensity LED Flexible Strips . 1. Using a Phillips screwdriver # 2 unscrew the two screws that hold in place the top of the header sign . 2. Pull out the top of the header sign. 3. Grab the acrylic sign and pull it out.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace High Intensity LED Flexible Strips . 4. Disconnect the LED strip Light’s electrical connector . 5. Remove the high intensity LED flexible strip by pulling it out from its base. Repeat this step to remove the other high intensity LED flexible strip. 6. To install the new high intensity LED flexible strip, reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace LED Strips . LED cover profile 1. Remove the LED profile cover from the breaker strip using a slotted screwdriver. 2. Disconnect the LED strip Light’s the electrical connector . 3. Use a slotted screwdriver to pull out the LED strip. 4. To install the new LED strip reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Condenser Fan Motor 1. Unscrew the four screws that hold in place the front grill , using a Phillips screwdriver # 2 2. Pull out the front grill . 3. Disconnect the Tyco electrical connector of the condensing unit. 4. Remove the two bolts that hold in place the condensing unit rails using a 1/2” open wrench.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Condenser Fan Motor 5. Pull out the condensing unit from the base of the cabinet. 6. The condensing unit can be removed all the way out for easier service. 7. Disconnect the Tyco electrical connector of the condenser fan motor. 8.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Condenser Fan Motor 9. Pull out the condenser fan. 10. Remove the bolt that hold in place the fan blade to the fan motor using a 9/32” socket screwdriver. 11. Unscrew. the two screws that hold in place the base motor to the fan motor using a 9/32” socket screwdriver. 12. To install the new condenser fan motor reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace the Evaporator Fan Motor. Fan Guard 1. Unscrew the four screws that hold in place the fan guard on the air baffle using a Phillips screwdriver # 2. 2. Remove the bolt that hold in place the fan blade to the fan motor using a 9/32” socket screwdriver. 3. Unscrew the four screws that hold in place the support base motor to the top of cabinet using a Phillips screwdriver # 2.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace the Evaporator Fan Motor. 4. Disconnect the Tyco electrical connector of the evaporator fan motor located in the top of cabinet. 5. Unscrew the three screws that hold in place the support base motor to the fan motor chassis using a 9/32” socket screwdriver . 6. To install the new evaporator fan motor reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace The Electronic Thermostat. 1. Remove the front frame of the thermostat using your fingers. 2. Turn 90° both screws to loosen their cams and the front panel will detach . Then, proceed to remove the thermostat from the panel, by keeping it horizontally. 3. Disconnect all the connectors located in the back of the thermostat. . 4. To install the new electronic thermostat reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to replace Ambient Sensor. 1. Remove the front frame of the thermostat using your fingers. 2. Turn 90° both screws to loosen their cams and the front panel will detach . Then, proceed to remove the thermostat from the panel, by keeping it horizontally. 3. Disconnect the connector of the ambient sensor located on the back of the thermostat, shown in the picture. 4.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to replace Ambient Sensor. 5. Unscrew the two screws that hold in place the light switch support plate on the baffle using a Phillips screwdriver # 2 . 6. Pull out the ambient sensor from its plastic clip support. 7. Use masking tape to splice the damaged ambient sensor with the new. This operation will serve as guide to remove the damage sensor and connect the new to the connector of the thermostat. 8.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instruction to Replace Starting Relay, Overload Protector and Starting Capacitor. 1. Unscrew the four screws that hold in place the front grill , using a Phillips screwdriver # 2 2. Pull out the front grill. 3. Disconnect the Tyco electrical connector of the condensing unit. 4. Remove the two bolts that hold in place the rails using a 1/2” open wrench, these rails support the condensing unit.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instruction to Replace Starting Relay, Overload Protector and Starting Capacitor. 5 Pull out the condensing unit from the base of the cabinet. 6. The condensing unit can be removed all the way out for easier service. 7. Remove the two bolts that hold in place the electrical box cover using a ¼” socket screwdriver. 8. Remove the electrical box cover by pulling it out.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instruction to Replace Starting Relay, Overload Protector and Starting Capacitor. LOCATION OF ELECTRICAL CONNECTIONS Relay Start Relay wire connections Overload protector Overload protector wires connection Starting capacitor wires connections Ground wire .
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instruction to Replace Starting Relay, Overload Protector and Starting Capacitor. 9. Remove the screws that hold in place the relay to the electrical box using a screwdriver # 2. 10. Use a slotted screwdriver as a pry bar to pull out the electrical connectors from the relay . 11. To install the new relay reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instruction to Replace Starting Relay, Overload Protector and Starting Capacitor. 12. Remove the four bolts that hold in place the electrical box using a ¼” socket screwdriver. 13. Insert a flat screwdriver in the slot of the plastic electrical box to remove it from the compressor. Use the flat screwdriver as a pry bar to push the box downward. 14.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instruction to Replace Starting Relay, Overload Protector and Starting Capacitor. 16. Use a slotted screwdriver as a pry bar to remove the starting capacitor from its base: The base of the capacitor is attached to the top of the electrical box. 17. Use a slotted screwdriver as a pry bar to disconnect the terminals of the starting capacitor. To install the new starting capacitor reverse the previous steps.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor. 1. Unscrew the four screws that hold in place the front grill , using a Phillips screwdriver # 2 2. Pull out the front grill. 3. Disconnect the Tyco electrical connector of the condensing unit. 4. Remove the two bolts that hold in place the rails using a 1/2” open wrench, these rails support the condensing unit.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor. 5 Pull out the condensing unit from the base of the cabinet. 6. The condensing unit can be removed all the way out for easier service. 7. Remove the two bolts that hold in place the electrical box cover using a ¼” socket screwdriver. 8. Please review the slides 19 through 23 to remove the relay, overload protector and starting capacitor.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor. 9 . The first step is to recover all refrigerant from the system by installing a piercing valve in the compressor service tube. Attach the hose of the recovery machine to the service tubing. Use an Allen Key Wrench to close the piercing valve for piercing the tube and open it to release the refrigerant. 10. Open Manifold Gauge Pressure valves and turn on the recovery machine to recover all the refrigerant. 11.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor. 13. Remove the four nuts that hold in place the compressor to the base rails using a 7/16” socket ratchet. 14. Remove the compressor from the base rails. 15. Not all compressor removal requires cleaning the low and high sides of the system. However, if you suspect that there are high levels of contamination, sweep the system using dry nitrogen at 250 psig. 16.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor. 17. Install the four nuts that hold in place the compressor to the base rails using a 7/16” socket ratchet. 18. Proceed to braze the service, discharge and suction tubing. 19. Braze the filter to the condenser discharge line and to the capillary tubing. Do not over heat the body of the filter and take great care not to block the capillary tubes with solder material.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor – Vacuum & Charging the System. 21. Use the Piercing Valve already installed in the service tube of the compressor. Proceed with the evacuation and charging process of the system. . Attach the hoses of the manifold gauge to the vacuum pumps . 22. Turn on the vacuum pump to start evacuating the system. This should take up to 20 minutes for the micron gauge to reach 200 microns or less.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Compressor – Vacuum & Charging the System. 23. After the vacuum process has been finished, close the valves of the manifold gauges and proceed to connect the hose from the refrigerant tank to the service line of the manifold. Open the low pressure valve as well as the tank valve to charge the refrigerant. Inject the amount specified in the serial name plate of R-134a refrigerant into the refrigeration system.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Sliding Doors. 1. The aluminum track profile has two cut outs at each channel to allow the removal or installation of both sliding doors. The cut outs location can easily be found by two labels on the aluminum track profile as shown in the picture 2. To remove the front door, align the two door rollers with the aluminum track profile cut outs. Lift and pull out the lower section of the front door.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Sliding Doors.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions to Replace Sliding Doors. 3. Remove the sliding door spring from the door roller bracket as shown in the picture. 4.
DISCONNECT UNIT FROM POWER SUPPLY BEFORE DOING ANY SERVICE Instructions for Replacing Sliding Doors. 5-To reinstall the new sliding door repeat the previous steps Install the door and test the tension of the sliding door by opening it and letting it close by it self.
