SD Electronic Steam Humidifiers Installation & Maintenance Manual Read and Save these Instructions
Installation & Maintenance Manual How The SD 2000 Works The SD 2000 humidifier is what is called an “electrode” humidifier. This means that instead of heating elements, metal electrodes are immersed in water contained in a plastic cylinder. When steam is required for humidification, electric current flows through the water between the electrodes. The minerals in the water provide both the conductance and resistance for electric flow, thus producing steam.
SD Carel USA Table of Contents 1. 2. General Installation Rules......................................................................................................................... 5 Mount Steam Humidifier .......................................................................................................................... 6 2.1. Position of Steam Outlets.................................................................................................................. 7 2.2.
Installation & Maintenance Manual Your SD 2000 steam humidifier will consist of: Steam humidifier unit Steam distributor pipe(s) or Room Distribution Unit (blower) Steam hose & condensate hose, hose clamps Mounting bracket, mounting hardware and water fill quick connect fitting Humidity sensors or controllers IMPORTANT: BEFORE beginning installation: Check for shipping damage to cartons. Mark the shipping waybill accordingly. Open cartons and check for any hidden damage.
SD Carel USA 1. General Installation Rules Mount the humidifier unit as close to the steam distributor pipe or Remote Distribution Unit as possible to minimize condensate. Mount the humidifier unit below the steam distributor pipe or RDU whenever possible. Insure that a slope can be maintained in the steam hoses. Avoid kinks and gullys in steam hoses which can trap condensate and cause problems.
Installation & Maintenance Manual 2. Mount Steam Humidifier Sizes and Weights FACTOR C – HEIGHT A – WIDTH B – DEPTH DRY WEIGHTS – LBS. WET WEIGHTS – LBS. 101 UNIT MODEL NUMBER: DIMENSIONS AND WEIGHTS 102 103 106 303 305 308 313 323 333 342 360 384 22.5” 25.2” 22.5” 25.2” 34” 34” 13” 14.2” 13” 14.2” 24.5” 40.25” 7.5” 8.25” 7.5” 8.
SD Carel USA 2.1. Position of Steam Outlets UNIT MODEL NUMBER: DIMENSIONS DIMENSION 101 102 103 106 303 305 308 313 323 333 342 360 384 3B3 A 3.2” 3.2” 3.2” B 3.2” 4.1” 3.2” 4.1” 6.7” 6.7” 6.7” C 12.2” 12.2” D 3.7” 4.3” 3.7” 4.3” 5.7” 5.7” 5.7” NOTE: Allow clearance on the top of the humidifier for the steam hoses to exit and travel to their duct distributor pipes (if used). 2.2.
Installation & Maintenance Manual 3. Connect Plumbing 3.1. Connect Water Feed The water feed connection is a 3/4” MPS male connection on the bottom of the humidifier (2 on SD360 & 384 models, 3 on SD3B3). Carel supplies a plastic adapter that screws onto the fill fitting and gives a 1/4” OD compression fitting for plastic or copper tubing. Since there is a strainer built into the bottom of the fill valve fitting, you should use only the plastic adapter supplied as it is easily removable for maintenance.
SD Carel USA 4. Connect Power Wiring Before connecting any power supply, check the data label inside the electrical compartment door to make sure the unit configuration matches the power supply. If it does not match, do NOT connect power – call your Carel representative. Insert the high power wires through the strain reliefs provided on the BOTTOM of the humidifier and wire directly to the field wiring terminals as shown below without loops.
Installation & Maintenance Manual 5. Connect Control Wiring 5.1. Controls Placement A typical humidifier control system includes a wall or return duct sensor or controller, a high limit duct humidistat, and an air proving switch. Placement of these devices is critical to proper operation of the overall system. The return air RH sensor must always be located BEFORE any outside air intake, in order to insure accurate sensing of the air from the space.
SD Carel USA Wiring the CDP Proportional Controller The CDP controller is designed to accept various modulating input signals: 0-10 Vdc, 0-20 Vdc, 2-10 Vdc, 0-20 mAdc and 4-20 mAdc. The DIP switches located on the back of the controller must be set for the appropriate input signal. NOTE: the modulating signal must come from a controller or DDC system, not a sensor. The CDP controller follows the input signal being off at low signal and full on at full signal.
Installation & Maintenance Manual 6. Install Steam Distributor Pipes If your SD 2000 humidifier was supplied with duct steam distributor pipes, they must be mounted completely level in the duct with the steam outlet holes facing up as shown to the right. Support the end of longer distributor pipes if needed. Distributor pipes should be mounted per the diagrams shown below, with a minimum of 6” from the center of the distributor pipe to the top of the duct and 3” minimum to the bottom.
SD Carel USA 7. Install Steam Hoses NINETY PERCENT (90%) OF ALL OPERATION PROBLEMS ARE CREATED BY IMPROPER STEAM PIPING FROM THE HUMIDIFIER UNIT TO THE DUCT DISTRIBUTOR PIPES. To avoid these problems, remember one simple fact when running the steam hose: steam naturally flows up hill, and condensate naturally flows down hill. Nothing must impede the free flow of either steam to the distributor pipes or condensate back to the SD unit or the drain.
Installation & Maintenance Manual 8. Install Room Distribution Unit Models SD101-313: If your SD 2000 humidifier was supplied with a direct mount RDU (Room Distribution Unit), it will have been shipped in place, ready to go. Simply mount the humidifier unit on the wall per the instructions in Section 2 and proceed to the unit wiring instructions. If the RDU was supplied separately or is a retrofit, mount the RDU to the top of the humidifier as follows: 1.
SD Carel USA Models SD323-3B3: The VRDXL used on the SD323-3B3 units is only available as a remote unit (wall mounting bracket supplied), although it can be mounted on the wall directly over the humidifier unit if desired. (2 VRDXL units are required for models SD360-384 and 3 are required for the SD3B3). Dimensions shown above. 1. Secure the VRDXL to the wall using the wall mounting bracket supplied. 2. Connect steam and condensate hoses to the bottom inlets and run to the top of the humidifier unit.
Installation & Maintenance Manual 9. Start up and Check out of the SD 2000 Humidifier Startup Checklist: 1. Water and drain lines are connected properly. Drain lines are trapped per Section 3. Fittings are tight. NOTE: Inlet water pressure must be between 15 and 150 psi. If higher than 150 psi, install regulator. 2. All power connections, including internal ones, have been checked to insure they are tight. Power supply matches the unit power data label. 3.
SD Carel USA 10. Operating The SD 2000 Humidifier Controller The SD 2000 controllers all have the same general display and keypad as shown below. Initially, the CDC and CDP controllers default to display of the amperage, while the CDH and CDD controllers default to display of the relative humidity. Some indicators are simply for display while others blink and can be modified. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.
Installation & Maintenance Manual CDP 303: control is modulating. The controller has an input for an external modulating signal from a proportional humidity controller or DDC system. The input signal can be selected by the dip-switches located on the back of the controller. The only selectable parameter is the maximum steam production. CDH 303: control is modulating. It is the most complete model and also includes the functions of a proportional controller. Only a humidity sensor is connected.
SD Carel USA 10.2. Display Sequence Starting Display Appears for 2 seconds on startup. 1. Mod 2. Humidifier model number 3. Controller type (cdC, cdP, cdH, cdD, cdT) Working Display Appears on CDH, CDD, CDT controllers 1. Actual relative humidity (°C on CDT) 2. Set point 3. Differential Pressing the SEL button brings up the display screens in sequence allowing the viewing of information and changing of parameters. Parameters that are changed take effect on leaving that display screen.
Installation & Maintenance Manual Drain Selection Press to change parameter: Cd = drain with electrodes under power td = drain without power (timed) Differential Setting (on CDH, CDD, CDT controllers only) 1. diF 2. Differential value Set Point Setting (on CDH, CDD, CDT controllers only) 1. SEt 2. Set point value High Limit Alarm Set Point (on CDH, CDD, CDT controllers only) 1. HI 2. High limit alarm set point value Low Limit Alarm Set Point (on CDH, CDD, CDT controllers only)) 1. LO 2.
SD Carel USA 11. Maintaining Your SD 2000 Humidifier Although your SD 2000 humidifier is designed to take care of its normal operation, and even to provide you with diagnostic capability, good operation always means good maintenance. Periodic cleaning or replacement of the steam generating cylinder, and fill and drain valves is required as indicated by the controller with an E08 alarm.
Installation & Maintenance Manual To clean the fill and drain valves: After shutdown and removal of the steam cylinder, shut off the water supply to the humidifier, disconnect the water supply and remove the fill valve from the humidifier. Remove the inlet strainer by reaching up into the fill valve inlet with a pair of needle nose pliers and pulling out the strainer by its tab.
SD 11.1. Carel USA Optimizing Cylinder Life on the SD 2000 Electrode Steam Humidifier The normal life of a steam cylinder ranges anywhere from 500 to 4,000 hours depending on the water quality and use profile. Generally we seek to see around 2,000 hours of life. If the steam cylinder is experiencing less than normal life, the following items should be checked: • Spent cylinder color is a very good indicator of correct or incorrect operating conditions.
Installation & Maintenance Manual 12. Trouble Shooting The SD 2000 electronic controller contains the most advanced diagnostics available on any electrode humidifier. Whenever there is an alarm or pre-alarm condition, a cursor appears on the left of the LCD display pointing to ALARM. If the alarm is a critical alarm, it will appear flashing in the LCD display as an E-- code. Pre-alarms must be viewed by holding the UP and DOWN keys simultaneously for at least 5 seconds.
SD Carel USA E06 CURRENT TOO HIGH: When amperage exceeds the second safety threshold. Causes: 1. Mineral bridge between electrodes. 2. Leakage of fill valve. 3. Blocked drain valve. 4. Back pressure from improper steam hose installation or duct. 5. TDO setting between 0 & 120. Remedies: 1. Clean or replace generator. 2. Check fill valve. 3. Check drain valve. 4. Check steam hose installation and duct pressure. E07 CURRENT TOO LOW: When amperage remains below required level for too long. Causes: 1.
Installation & Maintenance Manual E11 HIGH HUMIDITY: (In CDD models only) Causes: 1. Humidity has exceeded the high limit alarm setpoint. Remedies: 1. Check control circuit. 2. Check calibration of humidity sensor. 3. Raise hi-limit setpoint. E12 LOW HUMIDITY: (In CDD & CDH models only) Causes: 1. Humidity has fallen below the low limit alarm setpoint. Remedies: 1. Check control circuit. 2. Check calibration of humidity sensor. 3. Reduce lo-limit setpoint.
SD Carel USA WATER IN THE CYLINDER TURNS BLACK: Causes: 1. This is usually an indication that the minerals in the cylinder have overconcentrated and the pH of the water has dropped causing a deterioration of the electrodes. Left unchecked, this will lead to a very short cylinder life. Remedies: 1. Check for sags & kinks that could trap condensate in the steam hoses that could cause a back pressure on the cylinder. 2. Check the duct static pressure. 3. Check the fill valve and inlet strainer. 4.
Installation & Maintenance Manual HUMIDIFIER CONTINUOUSLY FILLS AND DRAINS WITHOUT PRODUCING STEAM: Causes: 1. Mineral has bridged between the electrodes. 2. There is back pressure from the steam hoses or duct. 3. The flow regulator in the fill valve is broken or out of place. 4. Water conductivity is very high. 5. Water is foaming excessively. Remedies: 1. Clean or replace the cylinder. 2. Check the steam hoses for kinks or gullys that might be trapping condensate. 3. Replace the fill valve. 4.
SD Carel USA POWER CONTACTOR CHATTERS: Causes: 1. Installation dirt has gotten into the contactor and is interfering with its free movement. 2. Secondary voltage is too low. 3. Controller triacs are weak or damaged. Remedies: 1. Clean out the contactor or replace it. 2. Check for proper primary voltage and taps on primary side of transformer. Check output from transformer secondary. If lower than 24 Vac, retap transformer. Check fuses on transformer. 3.
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SD Carel USA Part Number Description Drawing Reference Replacement Steam Cylinders: F201MA0000 1 phase, (SD/OEM-101,102,103) 6 E201MA0000 1 phase, (SD/OEM-106) 6 F401TA0000 3 phase, (SD/OEM-303,305) 6 E401TA0000 3 phase, (SD/OEM-308,313) 6 K400TA0000 3 phase, (SD-323,333,342,360(2),384(2),3B3(3)) 14 H400TA0000 3 phase, (SD-323,333,342,360(2),384(2),3B3(3)) 14 KITH400TA0 Replacemnt electrodes for H400TA 14 ADAH400TA0 Adaptor from K400TA to H400TA ADAK400TA0 Adaptor from H400TA to
Installation & Maintenance Manual Part Number Description Drawing Reference 1413107AXX Bottom Drain Pan (SD101,102,103,303,305,308,313) 10 KITVF00000 Bottom Drain Pan (SD323,333,342,360(2),384(2),3B3(3)) 18 1312347AXX Preformed Pipe (Small) 3 1312348AXX Preformed Pipe (Large) 3 1312345AXX Preformed Pipe (MS) 2 1312346AXX Preformed Pipe (MS) 2 KITTC00000 Preformed Pipe (SD323,333,342,360(2),384(2),3B3(3)) 13 13C119A003 Fill Cup (SD 101,102,103,106,303,305,308,313), Ser.
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Installation & Maintenance Manual 14. Technical Specifications V Ph. FACTOR UNIT MODEL NUMBER: CAPACITY, AMPERAGE, WATTAGE 102 103 106 208 1 LBS/HR AMPS WATTS 3 4.8 999 5 8.0 1666 7 11.2 2333 15 24.0 5000 220 1 LBS/HR AMPS WATTS 3 4.5 999 5 7.6 1666 7 10.6 2333 15 22.7 5000 240 1 LBS/HR AMPS WATTS 3 4.2 999 5 6.9 1666 7 9.7 2333 15 20.8 5000 208 3 LBS/HR AMPS WATTS 7 6.5 2333 12 10.2 3666 20 18.5 6667 30 27.7 10000 50 46.9 16898 220 3 LBS/HR AMPS WATTS 7 6.1 2333 12 9.
SD Carel USA 14.1. ASWH / ASDH – ASDH / ASDC Wall – Duct Temperature/Humidity Sensors Model Description Temperature: NTC thermistor, 10 Kohm at 25°C (77°F) (ASWC/ASDC only) Accuracy: +- 0.
Installation & Maintenance Manual 14.2. HC-101 and HC-201 Wall and Duct Humidistats Mounting the HC-101 room humidistat: Mount the HC-101 humidistat to an inside wall or post in the area to be humidified. Position it so that no drafts from registers or outlets are blowing on it. Be sure that it is not placed over a device that could generate heat or vapor ie: stove, machinery, cleaning vat. The unit has three wire leads, Orange, Brown and Red. Use the Orange and Brown leads for control operation.
SD Carel USA 14.3. PC-301 Air Proving Switch Mounting the PC-301 air flow switch: Mount the airflow switch in the supply or return duct using the screws supplied. Mount the device so that the diaphragm is in a vertical position as shown at right. If the airflow switch is to be mounted on the return duct (vacuum), then mount it in a vertical position by the small plate.
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Installation & Maintenance Manual Form: +03U400125 Rev. 0.
