Chromalox CMB-3A Installation, Operation And Renewal Parts Identification

Type CMB Electric Steam Generator 0 – 90 PSI © 2010 Chromalox, Inc. Output Single Phase Three Phase Lbs./Hr. Power Power Vol. AT † Amperes CCT. Amperes CCT. Model kW (Gals.) 212°F Volts Drawn Diag. Drawn Diag. 3 1.6 9 120 25 1 NA NA CMB-3A 3 1.6 9 208 14.4 2 8.3 3 3 1.6 9 240 12.5 2 7.2 3 3 1.6 9 480 6.3 2 3.6 3 6 6 18 208 28.8 4 16.7 8 CMB-6A 6 6 18 240 24 4 14.4 8 6 6 18 480 125 4 7.2 8 9 6 27 208 43.3 6 25 8 CMB-9A 9 6 27 240 37.5 5 21.7 8 9 6 27 480 18.8 4 10.8 8 12 6 36 208 57.7 7 33.3 8 CMB-12A 12 6 36 240 50 7 28.9 8 12 6 36 480 25 5 14.4 8 15 6 45 208 72.1 7 41.6 9 CMB-15A 15 6 45 240 62.5 7 36.1 8 15 6 45 480 31.2 5 18 8 Specifications — GENERAL WARNING: Hazard of Electric Shock. Any installa- tion involving electric generators must be effec- tively grounded in accordance with the National Electrical Code to eliminate shock hazard. 1. Locate unit on level floor or platform. 2. Connect water line to tagged fitting on the water control feeder. 3. The incoming water supply must be 10 pounds greater than the operating pressure. Otherwise, a high pressure feed (pump) must be used. 4. Wire unit following wiring diagrams supplied. (See recom- mendations on safety switches and fusing.) 5. Connect steam line with an outlet valve to boiler steam outlet. Chromalox recommends using a globe valve one pipe size smaller than steam line to limit any pressure drops (surges) that may occur during start-up. 6. Open all gauge valves and steam outlet valve. Keep drain valve closed. 7. Turn on watter supply; water will reach operation level auto- matically. 8. Close steam outlet valves. 9. Set thermostat for desired steam pressure (see Table 1). 10. Turn boiler switch to ON position, pilot light will go on. Generator will Build up to desired pressure and shut off automati- cally. 11. Open steam outlet valves and use steam as needed. 12. Generator should be blown down daily (see Blowdown instructions). 13. Chromalox generators are pretest- ed before shipment. No internal wiring or piping is required. 14. Substitution of components or modification of wiring systems without consult of manufacturer voids the warranty. 15. Power must be off when genera- tor is drained. 16. Purchaser should use a safety switch between the main power source and the steam generator. The safety switch should use cir- cuit breakers or fuses. CMB-3A † Assuming Feedwater at 50°F. Note — All Models listed with Underwriters Laboratories Inc. Gauge Pressure Temperature (psig) (°F) 0 212 1 216 2 219 3 222 4 224 5 227 6 230 7 232 8 235 9 237 10 240 15 250 20 259 25 267 30 274 35 281 40 287 45 292 50 298 55 303 60 307 65 312 70 316 75 320 80 324 85 328 90 331 Table 1 — Temperature-Pressure Relationship for Steam Boiler Serial # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model #. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . National Board # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amps. . . . . . . . . . . . . . . Phase . . . . . . . . . . . Cy . . . . . . . . . . . . . . . IMPORTANT – This data file contains the National Board Registration Certificate approving your generator. It must be kept near the generator at all times.

1/2" NPT Inlet Dimensions (In.) Model A B C D CMB-3 22-1/2 17-1/4 15 4-1/4 Dimensions (In.) Model A B C D CMB-6, 9, 12, 15 36-1/2 30 20 7 Top View B A Front View Rear View D C ® CAUTION 1/2" NPT Outlet 1/2" NPT Inlet

best preventive maintenance you can give your generator and will add years of life to the unit. Make sure that a blowdown schedule is established and followed regularly. In extremely hard water areas, blowdown may be necessary once a day. In other areas, once each week may be sufficient. If there is a particular problem which applies to your local water condition, other than mineral content, take this into consideration in determining what schedule is to be followed. 1. At the end of the working day turn the control switch to the OFF position and close the watter supply valve. 2. If blowing down into a receptacle, allow the pressure to decrease to 15-20 psi before opening the blowdown valve. 3. It is preferable to connect the blowdown valve directly into a drainage system, if local codes permit. If this is allowed, the generator can be discharged at operating pressure. 4. When discharge is complete and the generator is drained, close the blowdown valve and open the water supply valve, allowing the generator to fill to normal level. 5. Close wall-mounted safety switch. 6. If you have been supplied with a manual reset control (as required in some states), the reset button on the control must be pushed before generator will begin developing pressure. CAUTION: Do not push reset until boiler has filled with water. 7. WARNING: The use of chemical cleaning compounds in these generators voids the warranty, unless approved by the manufacturer. OPERATION WIRING DIAGRAMS Standard 1-3 kW, 120V 1 Ø Diagram 1 1-3 kW, 208V-480V 1 Ø 1-3 kW, 208V-240V & 480V 3 Ø Diagram 2 Diagram 3 Diagram 4 Diagram 6 Diagram 5 Diagram 7 Diagram 8 Diagram 9 6 kW, 208V-480V, 1 Ø 9 kW, 480V, 1 Ø 9 kW, 230V-277V, 1 Ø 12-15 kW, 480V, 1 Ø C C 9 kW, 208V-220V, 1 Ø 12 kW, 277V, 1 Ø 40-47A C C FU1 FU2 12 kW, 208V-240V, 1 Ø 15 kW, 208V-277V, 1 Ø 48A C C FU1 FU2 C C FU3 FU4 6-15 kW, 208V-240V, 3 Ø 15 kW, 208V, 3 Ø 40A C FU1 C C FU2 FU3 From Power Circuit, Separate Source, or Transformer C W B R Control Circuit Diagram KEY For All Units with Contactors Contactor Normally Open Thermostat Switch Black Lead Red Lead White Lead C B R W 120V 1Ph

Phone: 1-800-368-2493 www.chromalox.com RENEWAL PARTS IDENTIFICATION HEATING ELEMENTS Description Part Number 3kW 120V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-005 3kW 208V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-008 3kW 240V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-002 3kW 480V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-037 3kW 208V 3PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300122-008 3kW 240V 3PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300122-009 3kW 480V 3PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300122-010 6kW 208V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-022 6kW 240V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-023 6kW 480V 1PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300129-027 6kW 208V 3PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300122-006 6kW 240V 3PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300122-001 6kW 480V 3PH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155-300122-004 9kW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONTACT 12kW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FACTORY 15kW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAFETY VALVES Description Part Number Popoff 1/2” 100 PSIG . . . . . . . . . . . . . . . . . . . . . . . . . . 344-300032-004 Popoff 1/2” 15 PSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-300032-001 MISCELLANEOUS VALVES AND GAUGES Description Part Number Float Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-300247-001 Check Valve 1/2” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276-118536-053 Ball Valve 1/4” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-121194-007 Ball Valve 1/2” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-121194-006 Ball Valve 1/4” T-Grip . . . . . . . . . . . . . . . . . . . . . . . . . . 344-300323-002 Gauge, 0-160 PSIG Dual Scale . . . . . . . . . . . . . . . . . . . 130-118661-001 Gauge, 0-30 PSIG Dual Scale . . . . . . . . . . . . . . . . . . . . 130-118661-013 Strainer 1/2” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351-118664-001 ELECTRICAL PARTS Description Part Number Rocker Switch with Pilot . . . . . . . . . . . . . . . . . . . . . . . . 292-053223-001 Contactor 40A 2 Pole . . . . . . . . . . . . . . . . . . . . . . . . . . 072-047913-009 Contactor 40A 4 Pole (For 1Ph) . . . . . . . . . . . . . . . . . . 072-047913-022 Contactor 50A 2 Pole . . . . . . . . . . . . . . . . . . . . . . . . . . 072-047913-003 Contactor 50A 3 Pole . . . . . . . . . . . . . . . . . . . . . . . . . . 072-047913-019 Thermostat — SPST 22A . . . . . . . . . . . . . . . . . . . . . . . 300-300330-001 Thermostat — DPST . . . . . . . . . . . . . . . . . . . . . . . . . . . 300-300176-001 Thermostat SPST 25A . . . . . . . . . . . . . . . . . . . . . . . . . . 300-300330-002 Fuse 50A 250V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128-121133-079 Fuse 60A 250V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128-121133-080 Fuse 40A 600V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128-121133-064 Fuse 60A 600V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128-121133-067 Fuse Block 35-60A, 250V 2 Pole . . . . . . . . . . . . . . . . . 129-024494-005 Fuse Block 35-60A, 250V 3 Pole . . . . . . . . . . . . . . . . . 129-024494-006 Fuse Block 35-60A, 600V 1 Pole . . . . . . . . . . . . . . . . . 129-047445-003 Fuse Block 35-60A, 600V 2 Pole . . . . . . . . . . . . . . . . . 129-047445-001 Fuse Block 35-60A, 600V 3 Pole . . . . . . . . . . . . . . . . . 129-047445-002 Terminal Block, Control Circuit . . . . . . . . . . . . . . . . . . . 303-075444-001 Terminal Block, Power . . . . . . . . . . . . . . . . . . . . . . . . . 303-071809-001 SIGHT GLASS ASSEMBLIES Description Part Number Sight Glass Assy., Complete, CMB 3 . . . . . . . . . . . . . . 130-073287-003 Tubing Protector CMB 3 . . . . . . . . . . . . . . . . . . . . . . . . 374-056360-003 Valve Set CMB 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-120970-003 Sight Glass Tubing CMB 3 . . . . . . . . . . . . . . . . . . . . . . 374-121046-019 Sight Glass Assy., Complete, CMB 6-15 . . . . . . . . . . . . 130-073287-004 Valve Set CMB 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-120970-002 Sight Glass Tubing CMB 6-15 . . . . . . . . . . . . . . . . . . . . 324-121046-020 Guard Rods (2) CMB 6-15 . . . . . . . . . . . . . . . . . . . . . . 242-121047-008 Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx.