LE Series. Electrode Steam Humidifiers

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1 LE Series Electrode Steam Humidifiers

2 Electrode Steam Humidifiers The Company For over 35 years, Vapac has been designing, manufacturing and specializing in high quality solutions for indoor air humidification needs. As a world leader in humidification technologies, reliable, efficient and high-quality humidifiers have been manufactured and shipped to over 45 countries. Vapac offers its expertise in a wide range of long lasting high quality electrode, resistance and gas-fired steam humidifiers. Vapac sets the standard with a new generation of electrode atmospheric steam humidifiers for various applications. The LE Series has been designed with benefits for the installer, operator and owner. The Principle Electrode steam humidifiers use the conductivity of potable water to boil it and produce clean atmospheric steam. Each humidifier includes one or more plastic cylinders containing a pair of electrodes and mesh assembly. LEP Close Control Model - SSR Modulation Vapac's unique Pulsed Energy control provides infinitely variable steam output from 8% up to 100% of capacity by electronically switching power to the electrodes. The LE Series Pulsed Energy (LEP) can be used in close tolerance applications where the need to accurately follow the system dynamics and humidification load profile is a requirement. LE Comfort Control Model - Modulation or On/Off Ideally suited where there is a need to maintain humidification level within given tolerances, but where a brief delay in response, as the system adjusts to changing humidification demands, is acceptable. The VapaNet Water Level modulation is designed to meet these requirements, incorporating an intelligent combination of Feeding, Boiling and Draining to minimize wastage of water and energy. Water Level control technology gives a performance turndown of between 20% and 100% of nominal humidifier capacity. The Advantage The new LE Series electrode boiler steam humidifier offers superior quality with reliable trouble-free operation. The steam output is controlled by the water level inside the cylinder, as the electrodes get coated with minerals, the water level is raised to use up clean electrode and ensure full and uninterrupted steam production at all times. When the cylinder is full of minerals, it is easily removed to be cleaned or replaced. The VapaNet controller automatically adapts to most water conditions, various cylinder configurations are offered to optimize cylinder life in special applications.

3 LE series The Benefits Low Cost And Easy Maintenance The low cost disposable cylinder in Vapac's electrode steam humidifier can be changed in minutes, reducing the downtime associated with cleaning the humidifier. This way, the maintenance can be performed by non qualified personnel. It eliminates the need for a backup unit and cuts down on costly maintenance associated with other systems. Exclusive Pulsed Energy Control Vapac's LE-P Version is the only electrode steam humidifier offered with full SSR control giving it a turn down to 8 % of full capacity and the most precise electrode steam humidity control. Standard Water Level Control Modulation Vapac's base LE Version of electrode humidifier controls the water level via contactors, giving good humidity control in non critical applications and a turn down to 20 % of full capacity. Drain Pump Advantage As opposed to more commonly used gravity fed solenoid valves, all Vapac humidifiers use a heavy duty drain pump to minimize the risk of blockage due to sediment build up and hot water wasted to drain. It also ensures precise control of the water level within the cylinder which is critical to offering long cylinder life and gives the LE Series VapaNet controller the ability to eliminate foaming water conditions. Foam Protection The VapaNet control system reduces the onset of foaming by introducing corrective pumped drain cycles to maintain steam production with very little interruption. This integrated feature part of all Vapac humidifiers increases the time between each maintenance interval and maximizes the cylinder life. Internal Drain Water Tempering The internal drain water tempering capabilities of the LE Series eliminates the need for expensive external drain water tempering devices. When drains are performed during normal operation, the VapaNet controller ensures the drain water temperature is below 140 o F (60 o C) to meet local codes. Choice Of Cylinders Vapac's electrode steam humidifier come standard with a disposable cylinder but is also available with a cleanable cylinder as an option (left). This makes it easy for maintenance personnel to remove the scale collecting at the bottom of the humidifier cylinder and so extend the operational life of a cylinder. In Vapac humidifiers, disposable and cleanable cylinders are fully interchangeable.

4 All Components Fully Accessible From The Front The ventilated, front opening, steel cabinet with hinged doors provides total access for cylinder change and servicing. An internally separated electrical section maintains a clear demarcation between electrical and mechanical sections for end user safety. Corrosion Resistant Hinged Doors and Locks On top of having a unique frontal access to all components, all cabinet doors are hinged to facilitate access in the unit, eliminate the possibility of door misplacement and ensure the safety of the people surrounding the unit in addition, incorporates two locks for safety purposes.. Stainless Steel Drain Pan For corrosion free operation throughout the life of the humidifier, the drain pan of all Vapac humidifiers is constructed of Stainless Steel. In addition, the drain pan includes an overflow to drain and a 1"(24.5mm) lip eliminating possible water spillage on the floor. VapaNet Control System The exclusive VapaNet software control system, ensures a simple and user friendly operatorto-humidifier interface throughout all Vapac products. At a glance, the front mounted LED indicator display clearly shows the operational state of the humidifier. Easy to read symbols make interpretation clear and precise. Initial set up on site is also simple; plug in jumpers, select water type and input control signal, and all other operations are pre-set at the factory. Commissioning could not be easier. Here are some of the unique parameters that can be displayed with the Vapac humidifier optional alphanumeric display: - Space RH - Space Temp - System output - Control signal demand - Total power used by the unit - Run hours - Network connections status Primary/Secondary Facility VapaNet allows for a maximum of 10 cylinders to communicate within a Primary/Secondary system with an interconnecting two-core cable. Maximum duty 992 lbs/hr (450 kg/h). The primary would be a fully modulating humidifier (LE XXX P) and the secondary would be On/Off (LE XXX) controlled. LON Works TM Compatible VapaNet systems have the ability to communicate with any Building Management System incorporating the LON TM open system protocol as well as other Vapac products to create a seamless network of control. Run and Alarm Interface Remote Indications as volt-free contacts are Standard to show Run and/or Alarm conditions. Choice Of Operating Voltages Vapac LE Series can operate using V with 1 or 3 phase power supply (see technical data). Code Compliance All models are certified by UL Underwriter Laboratories for USA and Canada.

5 The Accessories Steam Distributors For introducing steam coming from the electrode steam humidifier into a duct system, stainless steel steam distributors can be used. They come in different length and capacity for all your application needs. Multiple distributors or the VAPASORB steam manifold can be used when a shorter absorption distance is required. Room Distribution Unit When there is no duct system, a room distribution unit (RDU) can be used for direct steam injection in the space to humidify. The RDU comes complete with its own fan and safety circuitry for fast steam dispersion in the room. Controls The humidifier can be controlled directly from either a duct or room mounted humidity sensor, supplied by Vapac, or an external signal by others. All models can be operated from a potentiometric signal, a LON TM network signal or from any of six standard voltage/amperage analogue signals. Safety interlocks for fan operation, airflow switches, high limit humidistat, or any other safety device can also be used allowing the humidifier to operate as one with the dynamics of the air conditioning system. Alphanumeric Display The Alphanumeric Display can be factory fitted to the cabinet as a permanent installation or supplied as a de-mountable accessory which can be installed remotely from the plant or as a temporary plug-in device to aid service and troubleshooting. Communication Cable A 10 ft (3 m) cable complete with compatible plugs is available for primary/secondary control connection. Extension to a maximum length of 328 ft (100 m) is possible. The Unit "Delivering Quality Humidification"

6 LE Series - Technical Data LE Model LE11-S LE11-A LE20-S LE20-A LE40-A LE66-L LE66-H LE100-A LE121-H LE132-L LE132-H LE196-A LE242-H LE Model LE11-S LE11-A LE20-S LE20-A LE40-A LE66-L LE66-H LE100-A LE121-H LE132-L LE132-H LE196-A LE242-H Room Distribution Unit (RDU) LE Model LE11-S LE11-A LE20-S LE20-A LE40-A LE66-L LE66-H LE100-A LE132-L LE132-H LE196-A Vapac Humidification 9501, rue de l'innovation Montreal, Quebec H1J 2X9 Phone: (514) Fax: (514) Nominal Capacity lb/hr (kg/hr) 11 [05] 20 [09] 40 [18] 66 [30] 100 [45] 121[55] 132 [60] 196 [90] 242[110] 208V/1Ph 19 Full Load Current (A) 240V/1Ph Power (kw) LE Series Notes : - Standard models use water level control technology for ON/OFF or modulating operation (20-100%) - All models are available with keypad display. Add a -D to your desired model number. (Example: LE40-DA) - All models are trol (8-100%) for full a -P to (Ex: LE40-PA or LE40-PDA) - All data based on 60 Hz power supply Water Supply : - Hardness: ppm - Conductivity: !S; PH 7.3 to 8.0; Silica 0 ppm - Water Temperature: F (1 C) to 86 F (30 C). - Supply water pressure: psig (1.5-8 bar) - Feedwater connection: 3/4" NPT female both ends of supplied flexible hose connection Operating Limits : - Ambient Air Temperature 41 F (5 C) to 95 F (35 C) - Duct Pressure -2.4" w.c (-0,6 kpa) to +8" w.c.(+2 kpa) The manufacturer reserves the right to change the design or specification of the equipment described in this brochure without prior notice. is an internationally registered trademark. Vapac equipment is covered by international patents. 208V/3Ph V/3Ph Steam Outlet Overall Dimensions Qty. Dim. Height Width Depth 1 2 RDU Model RDU05LE RDU09LE RDU18LE RDU30L RDU45LE 1 3/8" (35 mm) 2 1/8" (54 mm) Full Load Current (ma) " (675 mm) 31.9" (810 mm) 16.9" (430 mm) 20.5" (520 mm) 39.0" (990 mm) Overall Dimensions Height Width Depth 8.0" (204 mm) 8.0" (204 mm) 14.2" (361mm) 16.9" (430 mm) 24.0" (602 mm) 33.1" (841mm) 2 Remote mounted RDU30L 2 Remote mounted RDU45LE 10.67" (271 mm) 480V/3Ph " (326 mm) 16.6" (421 mm) 14.4" (366 mm) 14.4" (366mm) 600V/3Ph () 75 () 78 (35) 78 (35) 80 (36) 88 (40) 86 (39) 88 (40) 88 (40) 164 (75) 160 (73) 164 (75) 164 (75) Weight Dry lb. (kg) Wet lb. (kg) 106 (48) 106 (48) 110 (50) 110 (50) 120 (55) 147 (67) 131 (60) 147 (67) 147 (67) 281 (128) 276 (125) 281 (128) 281 (128)