Page 2 - DIMENSIONS
MODEL CES-24 through CES-180 MODEL CES-6 through CES-18 DIMENSIONS DrainBlowdownValve K A C H B D E F G Check Valve L OptionalTransformer Safety ValveOutlet J Manual ResetHigh Limit ControlOptional VacuumBreaker McDonnell & MillerLow Water CutoffPump Control Drain BlowdownValve OperatingPressure...
Page 3 - Model; When installing boiler, allow sufficient room (21” minimum) to
Typical Plumbing Installation of a Steam Boiler with Condensate Return System CES — Dimensions (In.) DIMENSIONS INSTALLATION Model A B* C D E F G H I J K L CES-6 37 22-1/2 30 15-1/4 20 30-1/2 9-1/2 16 1/2 1 1/2 1/2 CES-9 37 22-1/2 30 15-1/4 20 30-1/2 9-1/2 16 1/2 1 1/2 1/2 CES-12 37 22-1/2 30 15-1/4...
Page 4 - Diagram 1; WIRING; Hazard of Electric Shock. Boiler must be; SPECIAL INSTRUCTIONS FOR CUSTOMERS SUPPLY-; Export
Diagram 1 3 Phase Voltage 3 Phase Voltage 3 Phase Voltage Boiler 208 240 480 Boiler 208 240 480 Boiler 208 240 480 WIRING TYPICAL WIRING DIAGRAMS WARNING: Hazard of Electric Shock. Boiler must be suitably grounded according to N.E.C. standard. 1. Be sure to use the proper wire. Electric wiring to bo...
Page 5 - Diagram 2; TYPICAL WIRING DIAGRAMS; Diagram 3
Diagram 2 TYPICAL WIRING DIAGRAMS 2PS BR Heater Contactors Feed Water Boiler On 3 GND BFU9 B 1PB Off 2 GND 1 GND 1 HTR C1 FU1 FU2 FU3 FU8 FU7 H1 H2 X1 X3 L3 1L1 1L3 1L2 L2 L1 X2 X4 Optional Transformer 1 1 C1 2 2 C2 R 1LT Y On IFS O 1PS O O W Feed Water Electrical Connection 2 1 2TB 2 GND 1 HTR FU9 ...
Page 6 - Diagram 4; Diagram 5
Diagram 4 TYPICAL WIRING DIAGRAMS 2PS BR Heater Contactor Feed Water Boiler On 3 GND BFU12 B 1PB Off 2 GND 1 GND 1 HTR C1 FU1 FU2 FU3 FU11 FU10 H1 H2 X1 X3 L3 1L1 1L3 1L2 L2 L1 X2 X4 Optional Transformer 1 1 C1 2 2 C2 R 1LT Y On IFS O 1PS O O W Feed Water Electrical Connection 2 1 2TB 2 GND 1 GND 2 ...
Page 7 - Diagram 6; Diagram 7
Diagram 6 TYPICAL WIRING DIAGRAMS 2PS BR Heater Contactors Feed Water Boiler On 3 GND B FU15 B 1PB Off 2 GND 1 GND 1 HTR C1 FU1 FU2 FU3 FU14 FU13 H1 H2 X1 X3 L3 1L1 1L3 1L2 L2 L1 X2 X4 Optional Transformer 1 1 C1 2 2 C2 R 1LT Y On IFS O 1PS O O W Feed Water Electrical Connection 2 1 2TB 1 GND 2 GND ...
Page 8 - Diagram 8; Diagram 9
Diagram 8 TYPICAL WIRING DIAGRAMS FU 1 2 3 FU 4 5 6 FU 7 8 9 C1 C3 C2 C4 FU 10 11 12 C5 FU 13 14 15 C6 FU 16 17 18 5 HTR 4 HTR 3 HTR 6 HTR 2 HTR 1 HTR 1 2 2TB 1TB 3 GND 2 GND 1 GND FU21 1PB 3 GND C1 C2 C6 C5 C4 C3 2PS 3PS 1PS On Off FU21 IFS O O O Y BR B B 1PB 1 1 2 2 W R Boiler On Feed Water Heater...
Page 11 - This is to prevent possible element; Turn boiler switch to “ON” position,; pump or solenoid; Checking low water cutout switch operation,; open drain; Turn off boiler. Reinstall contactor; Be sure all electrical connections are tight; Typical Export Boiler; Figure 1; — Automatic Reset Low-Water Cutoff Junction Box
After proper wiring and piping of boiler system is complete, testing ofcontrols can start. Before testing controls, it is recommended that all contactor fusing be removed. This is to prevent possible element failure under test conditions. A. OPERATING AND TESTING THE McDONNELL & MILLER LOW WATER...
Page 12 - CUT OUT; ting minus the differential setting, equals; CUT IN; pressure of the; HIGH LIMIT PRESSURE CONTROL OPERATION; This is for test purposes only!; Figure 2; OPERATION; For best boiler performance, a 1/4” less steam valve; MANUAL BLOWDOWN INSTRUCTIONS; Blowdown is an essential part of boiler operation. It is the best
ADJUSTING OPERATING PRESSURE CONTROLS1. Chromalox boilers are supplied with operating and high limit pres-sure controls. One is used for controlling the operating pressure ofthe boiler while the other is used as a high limit control. To deter-mine the difference in the controls, the high limit has a...
Page 13 - INITIAL TESTING —; Automatic Blowdown Control Cabinet; Display View of Automatic Blowdown Control Cabinet; Wiring Diagram for Automatic Blowdown
OPERATION AUTOMATIC BLOWDOWN INSTRUCTIONS(IF FURNISHED) The Automatic Blowdown is a device which automatically starts up your boiler in the morning; shuts it down at night and blows down(partially drains) the main boiler drain and the low water cut-off col-umn for a predetermined time interval each ...
Page 14 - OPTIONAL EQUIPMENT FOR STEAM BOILERS; Control will not work with de-ionized or de-; Main Setting —; Typical Wiring for; Electronic Resistance Sensing
OPTIONAL EQUIPMENT FOR STEAM BOILERS AUXILIARY LOW WATER CUTOFFOperation Operation of this control is accomplished by sensing a minute AC current flowing between submerged contact probe in the boiler shell. When this minute AC current is conducted through an external cir- cuit resistance up to 40,00...
Page 15 - IF A CONTROLLER SEEMS TO OPERATE IMPROPERLY; Solid State Sequencer.; Solid State Sequencer
OPTIONAL EQUIPMENT FOR STEAM BOILERS IF A CONTROLLER SEEMS TO OPERATE IMPROPERLY If the controller is suspected of operating improperly, it may be further checked as follows: 1. Leave the controller installed where it is, but disconnect all powerto the boiler. 2. Loosen the cover screw below the mai...
Page 16 - Hazard of Electric Shock. Water feed system; CONDENSATE RETURN SYSTEMS; WATER FEED SYSTEMS; Pump Motor Dimensions
Automatic water feed is required on all CES Boilers: LOW PRESSURE FEEDNote: Water Pressure feeds must be at least 10 psi greater than steam pressure. Low pressure water feed systems are used to supply make up water to the boiler where incoming water line pressure is 10 psig orgreater than the operat...
Page 17 - Installation; MAINTENANCE; Sequence
WATER FEED SYSTEMS Installation WiringA. Check the voltage of the motor before making the wiring connec-tion. Some Chromalox boilers are supplied with dual voltage sys-tems. The motor should always match the voltage of the controlcircuit. B. The motor circuit should be wired into the pump control lo...
Page 18 - HEATER ELEMENT CONDITION PROBABLE CAUSE; Faulty weld or braze on element to flange connection or corrosion.; IMMERSION HEATER FAILURE CAUSES
Boiler 1" Steam Equalizing Pipe Pump and LowWater Control Normal BoilerWater Level Cutoff Levelis Arrow Mark BlowdownValve 1" Water Equalizing Pipe 1-1/2" 18 1 2 8 7 3 4 6 5 1 6 5 4 3 2 5-3/4 REF. 4-1/2 REF. FIG. 1 FIG. 2 MAINTENANCE 1 2 3 4 2-1/2 REF. HEATER ELEMENT CONDITION PROBABLE C...
Page 19 - RENEWAL PARTS IDENTIFICATION
19 RENEWAL PARTS IDENTIFICATION Part Description Part Number Check Valve 1/2” CES-6 through CES-18 . . . . . . . . . . . . . . . . . . 344-118536-053 Check Valve 3/4” CES-24 through CES-180 . . . . . . . . . . . . . . . . 344-118536-054 Gauge Glass Assembly Valves (O-ring gaskets included) . . . . ....