SPEED QUEEN SCB75CG (01) PDF DOCUMENT

This manual provides instructions for the following drying tumbler models:

30 Pound (13 Kg) Capacity:

JCB30CE, JCB30CG, JCB30CSH, JCB30CSL, JCB30WE, JCB30XG, SCB30CE, SCB30CG, SCB30CSH, SCB30CSL, SCB30WE and SCB30XG

50 Pound (22 Kg) Capacity:

JC50CE, JC50CG, JC50CSH, JC50EG, JCB50CE, JCB50CG, JCB50CSH, JCB50EG, SC50CE, SC50CG, SC50CSH, SC50EG, SCB50CE, SCB50CG, SCB50CSH and SCB50EG

75 Pound (34 Kg) Capacity:

JC75CE, JC75CG, JC75CSH, JCB75CE, JCB75CG, JCB75CSH, SC75CE, SC75CG, SC75CSH, SCB75CE, SCB75CG and SCB75CSH

It is crucial to follow all safety warnings to prevent serious injury, death, or property damage. Always use common sense, caution, and care.

General Operation:

FAILURE TO INSTALL, MAINTAIN, AND/OR OPERATE THIS MACHINE ACCORDING TO MANUFACTURER’S INSTRUCTIONS MAY RESULT IN CONDITIONS WHICH CAN PRODUCE SERIOUS INJURY, DEATH AND/OR PROPERTY DAMAGE.

Immediate Action for Malfunction:

To reduce the risk of fire, electrical shock, serious injury or death, do not operate the tumbler if it does not perform according to these instructions. Immediately disconnect electrical service, shut off gas supply, and contact an authorized service representative. Service and repairs are to be performed by authorized service representatives only.

Basic Precautions:

To reduce the risk of fire, electrical shock, serious injury or death to persons when using the tumbler unit, follow these basic precautions:

• Read all instructions before using the tumbler.

• DO NOT tamper with controls.

• DO NOT bypass any safety devices.

• Always follow the fabric care instructions supplied by the garment manufacturer.

• Remove laundry immediately after the tumbler stops.

• DO NOT reach into the tumbler if the cylinder is revolving.

Flammable Materials:

To avoid creating any flammable vapors which may explode, ignite or cause corrosive damage, DO NOT dry the following materials:

• Articles that have been cleaned in, soaked in, washed in or spotted with gasoline, dry cleaning solvents or other flammable/explosive substances.

• Plastics or articles containing foam rubber or similarly textured rubberlike materials.

• Articles that have traces of flammable substances like cooking oil, machine oil, flammable chemicals or thinner.

• Articles containing wax or cleaning chemicals.

• Fiberglass curtains or draperies (unless the label says it can be done).

Rear Access:

To reduce the risk of serious injury, install lockable door(s) to prevent public access to the rear of tumblers.

To reduce the risk of fire, electric shock, serious injury or death to persons when using your SPEED QUEEN SCB75CG, follow these basic precautions:

1. Do not allow children to play on or in the tumbler. Close supervision of children is necessary when the tumbler is used near children. This is a safety rule for all appliances.

2. Before the tumbler is removed from service or discarded, remove the door to the drying compartment.

3. Do not install or store the tumbler where it will be exposed to water and/or weather.

4. Failure to install, maintain, and/or operate this machine according to the manufacturer’s instructions may result in conditions which can produce serious injury, death and/or property damage.

5. Run the tumbler with a load before putting it into service.

6. Always disconnect the electrical power to the tumbler before servicing. Disconnect power by shutting off the appropriate circuit breaker or fuse and by turning off the disconnect switch located on the rear of the tumbler.

7. If the emergency stop function is desired on coin-operated models, an external emergency stop switch may be installed as specified on the machine wiring diagram. NOTE: Activation of the emergency stop switch stops all machine control circuit functions, but does not remove all electrical power from the machine.

The following warning labels will be found on the SPEED QUEEN SCB75CG, and it is important to understand their meaning:

• A clothes dryer produces combustible lint. TUMBLER MUST BE EXHAUSTED OUTDOORS.

• Do not touch rotating parts.

• Do not touch surface until it has cooled.

• Do not operate without guards in place.

• Disconnect electrical power before servicing.

• To reduce the risk of accumulating unsafe concentrations of combustion gases, the tumbler MUST BE EXHAUSTED OUTDOORS.

Additionally, there is a comprehensive warning label with the following points:

• DO NOT put articles soiled with flammable liquids or flammable cleaning solvents in the dryer.

• DO NOT store or use flammable liquids near this appliance.

• DO NOT spray or store aerosols in the vicinity of this appliance.

• Various chemicals used in laundries contain chlorine. When decomposed in a flame, these materials may rapidly corrode and destroy this appliance.

• Dryer must be exhausted outdoors, and the area around the dryer must be free of lint because the dryer produces combustible lint.

• DO NOT dry articles containing foam rubber, plastic or similarly textured rubberlike materials.

• Use for drying water washed fabrics only.

• DO NOT put articles soiled with vegetable or cooking oil in the dryer as these oils may not be removed during washing. Due to the remaining oil, the fabric may catch on fire by itself.

• DO NOT reach into the dryer until all moving parts have stopped.

• DO NOT let children play in the dryer.

The model and serial numbers for your SPEED QUEEN SCB75CG will be found on the nameplate. The nameplate is located either on the rear of the tumbler or underneath the door hinge.

REVERSING MOTOR SIZES

Upon delivery, visually inspect the crate, carton, and parts for any visible shipping damage. If there are signs of damage, have the carrier note the condition on the shipping papers before signing, or advise the carrier as soon as possible. A written claim should be filed immediately if articles are damaged or missing.

Remove the crate and protective cover and check the items listed on the packing list.

IMPORTANT: Remove the shipping tape from the two back draft dampers located in the exhaust thimble.

Floor:

The drying tumbler may be installed on any level floor capable of supporting 100 pounds per square foot (488 kg/m²). Floor covering materials such as carpeting or tile should be removed.

Layout:

Whenever possible, the tumbler should be installed along an outside wall where duct length can be kept to a minimum, and make-up air can be easily accessed. Construction must not block airflow at the top rear of the tumbler, as this would prevent adequate air supply to the tumbler’s combustion chamber.

Venting:

For maximum efficiency and minimum lint accumulation, tumbler air must be exhausted to the outdoors by the shortest possible route.

Make-Up Air:

The tumbler requires provisions for make-up air to replace the air it exhausts. The recommended make-up air opening is 195 square inches (1258 sq. cm). At a minimum, the tumbler must have at least 1 in² (2.54 cm²) of opening for every 1000 BTU/hr of input rating for proper combustion.

Properly sized exhaust ducts are essential for proper operation. Exhaust ducts must be made of sheet metal or other noncombustible material, equivalent in strength to galvanized sheet steel not less than 0.0195 inches (0.495 mm) thick. All elbows should be sweep type.

Individual Venting:

It is preferred to exhaust tumblers individually to the outdoors. The maximum allowable length of venting is 14 feet (4.3 m) plus two 90° elbows or equivalent. If the required duct length exceeds this, the diameter must be increased. Airflow in the duct must be at least 1200 feet (366 m) per minute to keep lint airborne.

The equivalent length for elbows can be determined with the following table:

Collector Venting:

A main collector duct may be used if sized properly. The duct must be tapered, and individual tumbler ducts must enter at a 45° angle in the direction of airflow. Never connect a tumbler duct at a 90° angle. Static back pressure must not exceed the maximum specified on the installation sticker on the rear of the tumbler.

WARNING: To reduce the risk of fire and accumulation of combustible gases, DO NOT exhaust tumbler air into a window well, gas vent, chimney or enclosed, unventilated area such as an attic, wall, ceiling, crawl space under a building, or concealed space of a building.

WARNING: Solvent gases and vapors from dry cleaning machines create corrosive acids when drawn through the heater of a drying tumbler. Be sure make-up air is free of solvent gases and vapors. If dry cleaning machines are in the same area, the tumbler make-up air must come from a source free of solvent gases and vapors.

All electrical connections should be made by a qualified electrician.

REQUIREMENTS

GAS AND HIGH PRESSURE STEAM DRYING TUMBLERS

GROUNDING INSTRUCTIONS

The SPEED QUEEN SCB75CG must be grounded. In the event of a malfunction or breakdown, grounding will reduce the risk of electric shock by providing a path of least resistance for electric current. The tumbler must be connected to a grounded metal, permanent wiring system; or an equipment grounding conductor must be run with the circuit conductors and connected to the PE Busbar.

WARNING: To reduce the risk of fire and electric shock, check with a qualified serviceman for proper grounding procedures. Improper connection of the equipment grounding conductor can result in a risk of electric shock.

WARNING: To reduce the risk of fire and electric shock, if electrical supply is coming from a three phase service, DO NOT connect a “Stinger Leg” to a single phase machine.

WARNING: All electrical connections should be made by a qualified electrician. To reduce the risk of electrical shock, de-energize the electrical circuit being connected to the tumbler before making any electrical connections. Never attempt to connect a live circuit.

Use the following steps to connect electrical service to the tumbler:

1. Install a circuit breaker, as close to the tumbler as possible. If more than one tumbler is being installed, a circuit breaker should be provided for each tumbler. This will make it possible to disconnect each tumbler for maintenance purposes.

2. a. Connect conduit-encased leads to the circuit breaker.

b. Turn “off” the disconnect switch on the tumbler and open the junction box.

c. Insert conduit-encased leads through one of the knockout holes in the junction box.

d. Connect wire leads to the disconnect switch.

1 Phase Units: Connect one lead to the top left connection point. Connect the other lead to the top right connection point.

3 Phase Units: Connect one lead to each connection point.

e. Connect a ground wire to the PE Busbar in the junction box.

3. Check electrical service phase sequence (three phase only) as follows:

a. Energize electrical service and momentarily start the tumbler. Check the direction of the cylinder rotation. If the cylinder rotates clockwise (viewed from the front), the phase sequence is correct. If the cylinder rotates counterclockwise, proceed with step “b”.

b. Disconnect and reverse any two leads at the connections.

4. Close the junction box cover and turn “on” the disconnect switch.

Positioning:

The tumbler can be removed from its shipping skid before or after moving to the installation location. To remove from the skid, unscrew the four shipping capscrews at each corner. The lint panel door will need to be removed to access the two front capscrews.

NOTE: Do not throw these four capscrews away – they are the leveling legs.

Screw the four leveling legs back into the level adjusting fittings from the top. Slide the tumbler to its permanent location. Keep the tumbler as close to the floor as possible. All four legs must rest firmly on the floor so the weight of the tumbler is evenly distributed and it does not rock.

Leveling:

Each tumbler should be leveled within 1/8 inch (3.2 mm) from front to rear, and 1/8 inch (3.2 mm) from side to side. Check the front-to-rear level by rotating the clothes cylinder until one rib is at the bottom, then place a level on that bottom rib. The side-to-side level should be checked by placing a level on the front and rear of the top panel.

Gas Requirements:

The size of the gas service pipe depends on many variables. Specific pipe size information should be obtained from your gas supplier. It is important that equal gas pressure is maintained at all tumbler gas connections. This can be achieved by installing a one-inch pipe gas loop.

WARNING: To reduce the risk of fire or explosion, if the tumbler is to be connected to Liquefied Petroleum (L.P.) gas, a vent to the outdoors must be provided in the room where the tumbler is installed.

Gas Connections:

1. Before connecting, make certain the gas service is the same as specified on the nameplate. Natural Gas service must be supplied at 6-1/2 ± 1-1/2 inch water column pressure (1.62 ± .37 kPa). L.P. Gas service must be supplied at 11 ± .3 inch water column pressure (2.74 ± .07 kPa). If the service is not the same, DO NOT CONNECT THE GAS LINE. The gas burner orifice and gas valve will need to be converted first by authorized personnel.

2. Purge air and sediment from the gas service line before connecting it loosely to the tumbler. Purge the remaining air until the odor of gas is detected, then tighten the connection. Use pipe compound resistant to L.P. gas on all pipe threads.

WARNING: Check all pipe connections, internal and external, for gas leaks using a soapy solution. To reduce the risk of explosion or fire, DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! Gas connections should be checked annually for leakage.

WARNING:

• The tumbler and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 kPa).

• The tumbler must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at a test pressure equal to or less than 1/2 psig (3.45 kPa).

Lighting the System:

1. Turn the machine disconnect switch, located on the rear of the tumbler, to the “on” position.

2. Turn the gas shut-off valve, located on the rear of the tumbler, to the “on” position (the gas valve handle should be parallel with the gas line).

3. Start the tumbler, following the operating instructions that accompanied it.

NOTE: The ignition control circuitry will verify the airflow switch is open before starting the cylinder motor. Once the motor starts, air flowing through the tumbler will close the airflow switch. The tumbler will purge air for 18 seconds. Ignition will then start by a three-second release of gas from the gas valve and sparking of the ignitor. If ignition does not occur during the first three seconds, the ignition control will “lockout,” causing the gas valve to close and a red button on the ignition control to illuminate.

To reset the ignition system, open the access door and press the red button on the ignition control. Close and lock the access door, verify that the gas shut-off valve is in the “on” position, and return to step three.

Shutting Down the System:

If the tumbler will not start, remove it from service by:

1. Turning the machine disconnect switch, located on the rear of the tumbler, to the “off” position.

2. Turning the gas shut-off valve, located on the rear of the tumbler, to the “off” position (the gas valve handle should be at a right angle to the gas line).

You can change cycle lengths by installing different timing cams. To figure out time increments, use the formula: Timer Motor Speed (60) divided by the number of pins on the cam = Cycle Length (minutes). For example, 60 ÷ 5 (Pin cam) = 12 minute cycle.

Removal of Existing Timing Cam:

1. Rotate the cam by hand until the “V” notch lines up beneath a ratchet tooth.

2. Insert a narrow screwdriver under the nylon cam, close to the clock shaft. Lift gently off the shaft, ensuring the pressure is directed upward and the “V” notch clears the ratchet tooth.

Installation of New Timing Cam:

1. Insert the drive into the timing cam with the wide prong in the wide hole of the cam.

2. Position the timing cam and drive fork over the timer shaft, aligning the timer flat with the drive fork and the “V” notch with one of the ratchet teeth.

3. Press the timing cam down firmly to seat it onto the motor shaft.

4. Remove all accumulated time by turning the cam counterclockwise until the switch shuts off. Apply moderate clockwise pressure to fully seat the timing cam and drive against the timing motor shaft. The meter must be advanced electrically for one cycle before an accurate measure of time can be made.

Preliminary Operating Checks

1. Remove or open all panels and inspect accessible bolts, nuts, screws, terminals and fittings for security.

2. Check belt tension, adjust if necessary (refer to Adjustment Section).

3. Energize the electrical circuit to the tumbler circuit breaker and turn on the tumbler disconnect switch.

4. Turn on the gas supply at the manual gas shut off valve in the gas supply line. The handle of the gas shut off valve should be parallel with the gas supply line when in the “ON” position.

5. Press and hold in the Push-to-Start Button for approximately three (3) seconds. Release the button and open the cylinder door. The cylinder should stop rotating within seven (7) seconds after the door is opened 3″ (7.5 cm) plus or minus 1/4″ (0.635 cm). If the cylinder does not stop rotating, adjust the cylinder door interlock.

6. Load the tumbler with clothes or clean rags.

7. Start the tumbler and check the burner flame, adjust the gas inlet shutter if necessary.

8. Check air flow switch operation by opening the lint panel. The heating system should shut off when the lint panel is opened approximately 1-1/2″ (3.81 cm). Adjust if necessary.

9. Turn off the tumbler.

10. Check air flow switch operation by opening the lint panel. Heating systems should shut off when the lint panel is opened approximately 6″ (15.24 cm) with a full load.

Final Operating Checks (Coin Operated Tumbler)

1. Set the temperature selector to HIGH.

2. Insert the required amount of coins.

3. Press and hold in the Push-to-Start Button for approximately three (3) seconds. The motor will start and the heat system will turn on.

4. Near the end of the cycle, a preset 2 1/2 minute cool down cycle will start.

5. When the metered time expires, the motor will stop, indicating the drying cycle is finished.

NOTICE: Both air inlet shutters on the burner must be adjusted for proper combustion and maximum efficiency. Before adjusting, ensure all lint is removed from the lint compartment and lint screen.

Adjust the air shutter as follows:

1. Unlock and open the access door.

2. Start the tumbler and check the flame pattern. A correct mixture is indicated if the flame is primarily blue with small yellow tips and bends to the right of the heater section (Proper Air Flow). Too little air is indicated if the flame is yellow, lazy, and smokey (Insufficient Air Flow). A flame that flares to the right and left indicates no air is flowing through the tumbler (No Air Flow).

3. To adjust the air shutter, loosen the air inlet shutter adjusting screw.

4. Open or close the air shutter as necessary to obtain the proper flame intensity.

5. After the air shutter is adjusted for a proper flame, tighten the air shutter adjusting screw securely. The control panel may need to be removed temporarily to loosen the shutter screws.

6. If the shutter is correctly adjusted but the flame pattern is straight up, it indicates insufficient primary air is flowing through the tumbler and the airflow switch is improperly set.

WARNING: To reduce the risk of fire, air flow switch operation may be affected by a clogged lint screen, lack of make-up air, or obstructions in the ducts. These conditions must be checked and corrected before adjusting the air flow switch. Always adjust air flow at installation.

NOTICE: The control panel must be in place and the access door closed before attempting to adjust the air flow switch.

The counterweight should be adjusted so that air flow will force the disc away from the cabinet when the lint panel is opened 6 inches (15.24 cm) with a full load. Adjust as follows:

1. Load the tumbler.

2. Start the tumbler. Open the lint panel 6 inches (15.24 cm). The airflow disc should move away from the cabinet, opening the switch contacts and shutting off the heat system. This indicates proper operation.

3. If the switch does not open as described, it needs to be MORE sensitive. Depress the spring clip and move the counterweight toward the disc. Retest by opening the lint panel and continue moving the counterweight toward the disc until it operates correctly.

4. If the switch opens BEFORE the lint panel is opened the proper distance, it needs to be LESS sensitive. Depress the spring clip and move the counterweight away from the disc. Retest and continue moving the counterweight away from the disc until it operates as described.

Loading Door Switch Adjustment:

The loading door switch turns off the tumbler when the door is opened. To adjust:

1. Start the tumbler following its operating instructions.

2. Slowly open the loading door. The cylinder and heating system should stop when the door is open 3 inches (7.5 cm) plus or minus 1/4 inch (0.635 cm).

3. Slowly close the loading door. The switch should close with an audible “click” when the door is closed 3 inches (7.5 cm) plus or minus 1/4 inch (0.635 cm).

4. If the switch does not close at the correct point:

a. Close the loading door completely.

b. Loosen the lower screw on the switch coupler and rotate the coupler COUNTERCLOCKWISE until it stops.

c. Tighten the lower screw on the switch coupler.

d. Return to step 1 to verify the adjustment.

Cylinder Door Strike Adjustment:

The door strike must have sufficient tension to hold the door closed against the force of a tumbling load. Proper adjustment is when 8 to 15 pounds (35.6 N – 66.7 N) of pull is required to open the door.

To adjust, open the door, loosen the jamnut on the door strike, and turn the door strike screw in or out as required. Retighten the jamnut when finished.

WARNING: To reduce the risk of serious injury or death, disconnect power to the tumbler before performing this operation.

Proper tension is when the belt can be depressed approximately 1/2 inch (1.27 cm) by applying light thumb pressure at a point midway between the sheave and motor pulley.

1. Remove the guard from the rear of the tumbler.

2. To adjust belt tension, loosen the adjusting bolt holding the idler housing assembly to the housing support.

3. To tighten the V-belt:

a. Loosen the lower nut on the adjusting bolt.

b. Turn the bolt up until the belt has proper tension.

c. Tighten the upper and lower nut or adjusting bolt.

4. To loosen the V-belt:

a. Loosen the top nut on the adjusting bolt.

b. Turn the bolt down until the belt has proper tension.

c. Tighten the upper and lower nut or adjusting bolt.

5. Replace the guard on the rear of the tumbler.

6. The upper belt (Poly V-belt) requires no adjustment as it is self-adjusting.

WARNING: To reduce the risk of serious injury or death, the guard MUST be installed on the rear of the tumbler after the belt adjustment is made.

Daily Maintenance:

1. Make certain the drying cycle has ended.

2. Open the loading door.

3. Unlock and remove the lint panel.

4. Remove accumulated lint in the lint compartment.

5. Clean lint from the lint screen. If the screen is torn, replace it immediately.

6. Ensure the lint screen covers the entire opening in the lint screen hood.

7. Wipe any accumulated lint off the thermostat sensing probe.

8. Replace and securely lock the lint panel.

Monthly Maintenance:

1. Perform daily cleaning of accumulated lint.

2. Deactivate the electrical circuit by turning off the electrical disconnect switch on the rear of the tumbler.

3. Remove the exhaust duct from the rear of the tumbler and clean out all accumulated lint.

4. Reinstall the exhaust duct.

5. Remove the bottom cover from the vertical exhaust duct and clean out all accumulated lint.

6. Reinstall the vertical exhaust duct cover.

7. Inspect the entire duct work assembly and clean out all accumulated lint.

8. Energize the electrical circuit to the tumbler by turning on the electrical disconnect switch on the rear of the tumbler.

Quarterly Maintenance:

1. Deactivate the electrical circuit by turning off the disconnect switch on the rear of the tumbler.

2. Perform daily and monthly cleaning of accumulated lint.

3. Clean accumulated lint and other debris from the front and back motor air vents.

4. Shut off the gas supply at the manual gas shut off valve. The handle should be at a 90° angle to the gas supply line when in the “OFF” position.

5. Remove the screws holding the rear drive guard to the back of the tumbler.

6. Inspect belts for wear and proper tension.

7. Reinstall the rear drive guard to the back of the tumbler.

8. Energize the electrical circuit to the tumbler by turning on the electrical disconnect switch.

9. Turn on the gas supply at the manual gas shut off valve. The handle should be parallel with the gas supply line when in the “ON” position.

Biannually Maintenance:

1. Deactivate the electrical circuit.

2. Perform daily, monthly, and quarterly cleaning/inspections.

3. Remove or open all panels and check accessible bolts, nuts, screws, terminals, and fittings for tightness.

4. Shut off the gas supply.

5. Unlock and open the service panel and inspect gas connections for evidence of leakage or loose connections. NOTE: Spraying a mild solution of soap and water on joints will cause bubbles to appear on any leaking connections.

6. Close and securely lock the service panel.

7. Open the electrical junction box cover and inspect all electrical and grounding connections for security. Tighten any loose connections.

8. Close the electrical junction box cover and energize the electrical circuit.

9. Turn on the gas supply.

Use the following checklist to track maintenance tasks. It is recommended to write down the dates when the maintenance is performed.

QUARTERLY MAINTENANCE

• Clean air vents on drive motor.
• Clean exhaust ducts.
• Check flow of combustion air.
• Check flow of ventilation air.
• Check belt tension.

BIANNUAL MAINTENANCE

• Check for loose nuts.
• Check for loose bolts.
• Check for loose screws.
• Check for loose gas connections.
• Check for loose electrical connections.

Follow these steps to safely decommission the machine:

1. Turn off the electrical supply external to the machine.

2. Turn off the electrical disconnect on the machine.

3. Turn off the gas supply external to the machine.

4. Turn off the manual gas shut-off valve on the machine.

5. Remove all electric and gas connections.