dectron service manual

dectron service manual

After the cause of the alarm has been corrected, press and hold SERVICE for 5 seconds to clear the alarm code. If the cause of the alarm disappears, will go OFF, but the alarm code remains in memory, and may be viewed by pressing SERVICE. Data subject to change without notice. The fan is ON, the unit runs in dehumidification for 52 minutes, followed by 20 minutes OFF. High pressure, low pressure, and outlet water temperature limits remain in effect. ON for 52 minutes, followed by 20 minutes OFF. Other modes are normal. This can be by passed by pressing the SERVICE and the UP key at the same time. SERVICE HT 800 CONTROLLER ENERGY RECYCLING DEHUMIDIFIER DEHUMIDIFY POOL HEAT INDOOR OU TDOOR AIR FLOW 84 Dectron, Inc. May 2005 VENTILATION SPA HEAT HUMIDITY COOL AUX. Must be reset after fault is repaired. Revision 12 HT - 800 Controllers The WaterSmart feature, which allows operation in modes other than water heating when water flow has been lost has been added An emergency mode which does not require the HT 800 thermostat has been added. An emergency mode which does not require a humidity sensor has been added. Addition of a minimum compressor run time of 20 minutes has been added.Thank you, for helping us keep this platform clean. The editors will have a look at it as soon as possible. ARP changes coming soon. This notice is dismissible, click the top right X and it will vanish. The ARP Forum will become Pro Member only on September 1, 2020. If you want to continue to view and reply in the ARP you must fill out the Pro application found here.To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. By continuing to use the website, you consent to our use of cookies.If you have any problems with the registration process or your account login, please contact support. Post Them Here All rights reserved. Sports News Without Access, Favor, Or Discretion We come from the future. Drive Free or Die.http://www.oli.com.br/lojas/admin/uploads/cva-owners-manual-muzzleloader.xml

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A Supposedly Feminist Website Gaming Reviews, News, Tips and More. Do everything better Black news, opinions, politics and culture. Food is delicious. America's finest news source. Dectron dry o tron service manual. View full discussion Sitemap Need Help. Most material relevant to a single task is on one page or a group of sequential pages. Please feel free to attach copies of the appropriate pages to the task work-order. To the Owner: This manual contains important instructions in operating and maintaining DRY-O-TRON and system. Please read the entire manual carefully and if you have any questions contact local Dectron representative. Your warranty is valid only if conditions explained in this manual are met. To the Installer: This manual contains vital instructions for installing and starting up the DRY-O-TRON and system. Your customer s satisfaction is at stake and the DRY-O-TRON warranty may be void if conditions explained in this manual are not met. 2 Dectron, Inc. September 2004 3 DRY-O-TRON DK Series Make-up Air Dehumidifiers Dectron Inc., the inventor of DRY-O-TRON, is a company committed to being the absolute best at what they do - providing leading expertise and quality products to customers who need to control high humidity efficiently. Today s DRY-O-TRON represents years of intensive research and development by a team of highly qualified experts. Dectron has the only large-scale dehumidifier testing and environmental simulation laboratory in the industry. Every DRY-O-TRON model line has been developed in this laboratory, and every customer s unit is fully factory tested before shipment. The DRY-O-TRON is available in a broad range of standard products for industrial and commercial applications. We also have a team of highly skilled engineering and manufacturing professionals who are dedicated to custom design projects. The DRY-O-TRON is fully tested under design conditions at our factory by skilled personnel.http://www.sarkar.ie/userfiles/cva-optima-pro-manual.xml

The installation of this state-of-the-art equipment must be performed by experienced heating, ventilation and air conditioning (HVAC) factory-trained technician. In conjunction with proper building design, this helps to reduce high humidity, condensation and their accompanying problems. How the DRY-O-TRON Works In the DRY-O-TRON, warm humid air passes through the dehumidifying coil and is cooled below its dew point, thereby condensing moisture. The heat captured by this process is combined with the heat generated from the compressor power consumption. This recovered heat is then partially used to reheat the air. The excess heat is then rejected to an air-cooled or water-cooled condenser. The DK Series has been designed to provide the flexibility to handle the extremely wide range of input air conditions that can be expected when using make-up air. When properly installed according to Dectron's instructions, the DRY-O- TRON will give years of trouble-free operation. The DK Series: Removes moisture efficiently over a wide range of entering air conditions. Reduces the running time of the main air-conditioning system, saving energy and operating and maintenance costs. Supplies treated outdoor air as required by ventilation codes. Helps reduce building repair and production maintenance costs. Dehumidifies even when cooling is not required. Pressurizes the facility to prevent infiltration of untreated air. Helps provide a comfortably dry working environment. Contributes to space cooling. Can be installed indoors or out doors (rooftop model). Can be added to existing air conditioning systems without complicated tie-ins. Uses state-of-the-art heavy duty scroll compressor technology for reliability and energy savings. Is constructed with a unique modular coil design which permits custom designs at lower cost. Low silhouette evaporators for maximum moisture removal.

DK Series - Customized for Every Project The DK Series units offer solutions for a broad range of humidity control applications (see Product Description - Major Options). To provide the best product at a competitive price, Dectron has used a modular approach to the design of the DK Series. Each DK unit is customized for a particular project. By drawing on a stock of modular components including coils, enclosures and other key submodules, Dectron can rapidly respond to customer requests for make-up air treatment. In addition Dectron has a Custom Division, staffed by a team of highly skilled engineering and manufacturing professionals who are dedicated to full custom design projects. No matter what the requirements Dectron has the system solution.Contact local Dectron representative for more information on DRY-O-TRON DK Series. 4 Dectron, Inc. September 2004 5 Product description How the DRY-O-TRON Works In the DRY-O-TRON, warm humid air passes through the dehumidifying coil and is cooled below its dew point, thereby condensing moisture. This recovered heat is then available for recycling back to the supply airstream, contributing to space heating. The DK unit is also capable of rejecting this heat to an air-cooled (optional) or water-cooled (optional) condenser, resulting in space cooling. When properly installed according to Dectron s instructions, the DRY-O-TRON will give years of trouble-free operation. DRY-O-TRON dehumidifiers feature standard microprocessor control. For the owner this means precise automatic control, high reliability, and ease-ofuse. For the installer and service person this means simpler installation and startup and built-in diagnostics and troubleshooting in the unlikely event that service is required. The optional cooling mode offers space cooling. An optional hot-water heating system is available to make use of a building boiler system for heating. This factory modification must be ordered at time of purchase.

An optional outdoor-air intake system includes an automatic damper to stop the outdoor-air flow during unoccupied periods. A microprocessor control system automatically determines the proper operating mode, based on conditions and occupation. A simple connection to building management systems is available. When dehumidification is required, the evaporator chills the incoming air to remove moisture. Heat is returned to the air stream after the dehumidification. A built-in clock may control the intake of outdoor air to occupied periods only. The heat removed can be put back into the airstream, as with a basic unit, or it can be delivered to a remote air-cooled heat exchanger. The heat removed can be put back into the airstream, as with a basic unit, or it can be delivered to an internal heat exchanger and thus to a flow of water or other fluid by others.The heat removed can be put back into the airstream, as with a basic unit, or it can be delivered to a remote air-cooled heat exchanger via a flow of glycol solution. The heat removed can be put back into the airstream in variable amounts, with the remainder delivered to a cooling heat exchanger. The incoming outdoor air can be heated with heat removed from a flow of fluid by others.September 2004 9 DESCRIPTION This page intentionally left blank. If assistance is needed, have Model, Serial number, and Ref.Component specifications. The difference must be added to the DRY-O-TRON at installation. See Installation - Piping - Refrigerant. This amount of refrigerant is supplied by others. Consult Dectron before exceeding the maximum length of tube or changing the tube diameters. Nameplate specifications supersede any other specifications or statements found in this manual. 10 Dectron, Inc. September 2004 11 This page intentionally left blank. Dectron, Inc. September 12 INSTALLATION Installation Important. Inspect unit immediately for shipping damage. Claims for shipping damage must be made with the shipping company.

Dectron is not responsible for shipping damage. Your unit has been factory tested for proper operation. Inspect the unit carefully upon arrival. Notify the carrier immediately if shipping damage is suspected. If internal damage is suspected, indicate contingent on internal inspection when signing for the shipment. Keep copies of all documents, including photographs of any damage. Storage It is best not to store DRY-O- TRON for long periods. If it must be stored, both indoor and outdoor units should be stored indoors in a space that is safe from accidental damage or vandalism. Where several DRY-O-TRON units are stored together, maintain proper inventory identification since each DRY-O-TRON is designed to a particular job specification. Unpacking On a level surface, remove external crating materials. Remove any fasteners securing the unit to the freight skid. Important! Locate unit where it will be protected from damage. Allow adequate space for service. (See below.) Care must be taken to separate any fresh air intake from sources of contamination, such as drain vents and burner flues. Select a suitable location for the unit, where the unit will not be subject to damage. Allow working clearances as shown below. Spacing requirements are also subject to applicable electrical codes. For units with hooded air intakes allow at least 3 feet (1 meter) of clear space around the hood for smooth intake air flow. Intake air hoods should be suitably separated from such sources of contamination as drain vents and burner flues. See appropriate codes and standards. See Installation - Isolators and Drain before proceeding. Unpacking and Locating Lifting Lift using only the integral lifting lugs. Where lifting lugs are not supplied, lift with forklift at the indicated points only. Refer to the corner weights provided by Dectron. Do not use clamps or slings. Use spreaders to prevent squeezing the cabinet.

Mechanical Room Adequate space MUST be planned in advance for the mechanical room and duct work. If inadequate space is provided, then ductwork cannot be properly installed and the system will not function satisfactorily. Service access to the equipment is also very important for everything from air-filter replacement to maintenance and service checks. Completing After the unit is positioned remove any internal shipping braces or pads. Release or remove any blower restraints. Confirm blower belt tension. Release or remove any compressor locks or restraints. Minimum Service Access a ft (m) 1 2 DK-010 through DK (1) 3 b (1) DK-080 through DK (1.2) 3 b (1) DK-240 through DK (1.5) 3 b (1) a - Access doors must be able to open to at least 90.Minimum Service Access a ft (m) 1 2 DKV DKV b (1) 2 (.6) DKV-080 through DKV100 4 (1.2) 3 (1) a - Access doors must be able to open to at least 90.See Unit-Duct Connections. Minimum lengths of straight duct apply. See Unit-Duct Connections. September 2004 13 Unpacking and Locating Installation Do not locate the DK unit in such a way that the exhaust from a cooling tower or other machinery will be drawn into its intake. Cooling Tower exclusion zone for exhausts of other equipment DRY-O-TRON INSTALLATION Do not locate the DK unit in such a way that the exhaust from a building will be drawn into its intake. DRY-O-TRON For DK units equipped with gas boilers or gas furnaces, do not locate other machinery in such a way that combustion products will be drawn into them. DRY-O-TRON BOILER exclusion zone for intakes of other equipment, where the DRY- O-TRON is equipped with a combustion device Dectron, Inc. September 14 Installation Sound and Vibration Elimination Install anti-vibration springs or pads such as machinery cork, rubber pads or other approved isolation materials to isolate the DRY-O-TRON from the supporting structure (see drawing at right). DRY-O-TRON Isolators and Drain INSTALLATION IMPORTANT.

Do not mount the unit on a plywood sheet or any other material that will resonate. Install flexible duct to all duct connections of the DRY-O-TRON to prevent sound and vibration transmission. Use aerofoil-type turning vanes on all elbows. Elbows and acoustic insulation can be used to further reduce noise where necessary. See Installation - Unit-Duct Connections. Condensate Drain Connection Allow a minimum 12-inch clearance for the bottom drain connection. On horizontal units, a P-trap must be installed and filled with water to prevent air from entering the DRY-O- TRON (which is under negative pressure) and to assure proper drainage of the condensate. Failure to do so will cause the drain pan to overflow. On vertical units, the internal P-trap is factory-installed. Pour at least one gallon of clean water into the evaporator drain pan to fill the P-trap and to test the drain for leaks. If no leaks are found, initial the check list in Start-up - Pre-startup Checklist. The drain line must discharge through an air gap to a vented open pipe.The P-traps of vertical units are internal. September 2004 15 Locate Remote Condenser Installation For units with air-cooled air conditioning, select a suitable location for the remote condenser, where it will not be subject to damage. Allow at least twice the width of the condenser fan of clear space around the condenser for smooth intake air flow and service accessibility. Allow at least 10 feet (3 meters) of open space above the unit for exhaust air flow. Allow clear space around the condenser equal to at least at least twice the width of the condenser fan.If a fence or wall must be installed, it must be no closer to the condenser than 2W (twice the width of the condenser fan) shown above, and must not extend lower than 12 inches (30 cm) above grade. Fences lower than 12 inches above grade may cause recirculation of heated air and a corresponding reduction in performance.

September 16 Installation Wiring Power INSTALLATION No field wiring of DRY-O-TRON internal circuits is necessary. Only power and remote-control circuits are completed in the field. Important! Use only copper wire to connect the unit. The power input lugs are not sized for use with other wire. For units with factory supplied disconnects, follow instructions inside the disconnect. Important! Ground the unit using the grounding lug provided. Important! Always cover the electrical components with plastic before drilling or sawing the electrical enclosure. Do not allow metal chips to fall into the enclosure. Important! For units with air-cooled air conditioning, refer to the remote condenser manual. Important! For units with air-cooled air conditioning, wire the remote condenser according to the wiring diagram provided with it. Insure that the fan motors turn in the correct direction. Use properly sized wire Refer to the unit nameplate for electrical ratings. Size wire according to applicable codes, with allowance for voltage drops. Insure phase sequence All the motors in the unit are connected for the same phase sequence. Be sure the phase sequence is correct before completing the installation. NOTE: The blower running direction can be used to test phase sequence. Insure phase voltage The DRY-O-TRON complies with NEMA MG-1 and other standards for applied voltage. See ANSI C84.1. Phase voltages must be balanced within 2%. 208V units A 230V DRY-O-TRON is designed to run on 208V also. In this case it is necessary to select the 208V primary tap on the control transformers. See the wiring diagram for the unit. A minimum of 187V is required for compressor starting (see NEMA MG-1). Service power The DRY-O-TRON may be provided with service lights which require a separate 115VAC 15A 60Hz branch circuit. Wire this branch circuit to the service branch circuit input lugs. Use only copper wire. Connect input power here. Use copper wire only.

Torque all connectors per NEC or relevant code. For units with factory-installed disconnects, connect power to the disconnect switch using the instructions in the switch. Turn on the branch-circuit disconnect switch. In some cases the blower may start. Some DRY-O-TRON units may have voltage monitors that prevent operation in the event the branch circuit has voltage that is too high, too low, has lost a phase, or has reversed phase sequence. Where this is the case, remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with an isolated switch (by others). Open the switch to inhibit unit blower operation. DRY-O-TRON terminal 3 terminal 4 SAMPLE Use terminal numbers in unit wiring diagram. Switch (by others) opens to inhibit unit blower operation. Where this is the case, remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with a set of isolated normallyclosed alarm contacts (by others). The contacts (by others) should open to indicate an alarm condition. DRY-O-TRON terminal 4 terminal 5 SAMPLE Use terminal numbers in unit wiring diagram. Contacts (by others) open in the event of fire. INSTALLATION OCCUPATION SIGNAL Some installations may require the unit to operate only when the building is occupied. Where this is the case, remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with a set of isolated contacts (by others). The contacts (by others) should be closed during periods of occupation. DRY-O-TRON terminal 5 terminal 109 SAMPLE Use terminal numbers in unit wiring diagram. Contacts (by others) are closed during occupied periods. AUXILIARY HEATER INTERLOCK SIGNAL Some installations may have external space heaters (by others).

Where this is the case, and if heating should have priority (compressor lockout, cooling and dehumidification inhibited during heating) then remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with a set of isolated contacts (by others). The contacts (by others) should be open when the heater is ON. DRY-O-TRON terminal 22 terminal 23 SAMPLE Use terminal numbers in unit wiring diagram. Contacts (by others) open during heater operation. Dectron, Inc. September 18 Installation Wiring Input Signals HUMIDISTAT SIGNAL Some installations may require dehumidification of incoming air to cease when the indoor relative humidity is below a set point. Where this is the case, remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with the isolated contacts of a humidistat (by others). The contacts (by others) should be open when the indoor relative humidity is below set point. DRY-O-TRON terminal 26 terminal 27 SAMPLE Use terminal numbers in unit wiring diagram. Contacts (by others) are open when indoor RH is below set point. INSTALLATION WATER FLOW SIGNAL (units with water-cooled air conditioning only) Some units may have water-cooled air conditioning. Of these, some units have built-in flow sensors and others may require field-installation of flow sensors. Where field installtion is required, remove the jumper from the terminals indicated in the unit wiring diagram, and replace it with the isolated contacts of the flow (pressure) switch provided. The contacts (by others) should be closed when the water flow is correct. DRY-O-TRON terminal 20 terminal 21 SAMPLE Use terminal numbers in unit wiring diagram. R Y Contacts (by others) are closed when adequate flow is present. 18 Dectron, Inc. September 2004 19 Output Signals Wiring Installation COOLING PRIORITY SIGNAL Some installations may have external space heaters (by others).

Where this is the case, and if cooling should have priority (auxiliary heater lockout, heating inhibited during cooling) then connect the Remote Heater Lockout signal to the terminals indicated in the unit wiring diagram. The contacts open when cooling or dehumidification is ON. DRY-O-TRON terminal 24 terminal 25 SAMPLE Use terminal numbers in unit wiring diagram. Contacts open when cooling or dehumidification is ON. SUPPLY FAN INTERLOCK SIGNAL An isolated contact rated 24VAC 8A closes when the supply blower is ON. EXHAUST FAN INTERLOCK SIGNAL An isolated contact rated 24VAC 8A closes when the exhaust blower is ON. DRY-O-TRON terminal 101 terminal 102 DRY-O-TRON terminal 101 terminal 102 SAMPLE Use terminal numbers in unit wiring diagram. SAMPLE Use terminal numbers in unit wiring diagram. Contacts close when supply blower is ON. INSTALLATION REMOTE CONDENSER ENABLE SIGNAL Some units, e.g. indoor, may have remote air-cooled condensers or remote DryCoolers. Where this is the case, connect the condenser enable signal to the terminals indicated in the unit wiring diagram. The contacts close to enable the remote condenser or DryCooler. Contacts close to enable remote condenser or DryCooler. Condenser control wire size (AWG) wire length Number of fan contactors (ft) Dectron, Inc. September 20 Installation Wiring Control Signals INSTALLATION This page intentionally left blank. 20 Dectron, Inc. September 2004 21 Control Signals Wiring Installation HOT WATER OR STEAM HEAT UNITS ONLY Some installations may have hot water or steam heating systems. In these cases there may be an electrically actuated valve to control the flow of the hot fluid. On indoor units this valve is located outside the unit cabinet.The actuator must be wired exactly as shown. Failure to follow these instructions exactly may cause permanent damage. Actuator wiring must follow the wiring diagram for unit. Take care to prevent the application of other voltages to these wires.

DRY-O-TRON INSTALLATION Water valve actuator wiring SAMPLE Use terminal numbers in unit wiring diagram. CCW PROPORTIONAL VALVE ACTUATOR Blk (1) COMMON Red (2) HOT Wht (3) 2-10VDC CW Dectron, Inc. September 22 Installation Wiring Field Wiring Diagram Each DRY-O-TRON has an associated field wiring diagram. INSTALLATION Heating valve Use care in wiring a heating valve. See Installation - Wiring - Control Signals. ONLY SAMPLE Use wiring diagram included with unit. Condenser control wire size (AWG) length Number of condenser fans (ft) Dectron, Inc. September 2004 23 Unit - Duct Connections Important. Poor duct design can reduce the amount of air delivered. IMPORTANT! Poor duct design resulting in uneven air distribution at a dehumidifier air inlet will reduce the moisture removal capacity and increase compressor running time and power consumption. In addition compressor life expectancy is reduced and ice build-up may occur on the dehumidifier coil. The following duct design guidelines must be followed for system to function correctly. Duct design must conform to the ASHRAE low-pressure, lowvelocity duct standards. If there is a question concerning duct design, sizing, choice of materials, air velocities, or static pressures contact Dectron for assistance. Air velocities should be kept low to allow good air movement and low noise. Higher static pressures result in higher power requirements and increased noise. The maximum external static pressure is specified for each unit. Static pressures higher than specified may reduce air flow below the minimum acceptable value. Select grilles, registers, and diffusers for low static pressure loss, required throw, and specified air flow. Duct material The DRY-O-TRON is suitable for use with any duct material, subject to the requirements of this section and standard practice. Standard galvanized steel duct is recommended. Installation All elbows near the unit must be equipped with aerofoil turning vanes and acoustic insulation.

Where located in areas below room temperature, ductwork must be insulated on the outside with 2- inch fiberglass wrap with FSK facing. All ducts must be designed to be dry. All seams must be sealed. If a below-grade duct system is used, transite or PVCcoated, round metal ductwork should be used. Flexible duct connectors Use flexible duct connectors to attach the ducts to the DRY-O- TRON. Install the flexible duct in such a way as to prevent mechanical loads from being applied to the unit, and to prevent unit vibration from being transmitted to the ductwork. INSTALLATION Horizontal Unit Intake Duct Note: Outdoor units may have direct intake hoods rather than intake ducts. This section applies only to units with intake ducts. Poor intake-duct design can prevent proper dehumidification by causing uneven air distribution over the evaporator. It is very important to allow straight length in the intake duct as shown. There should be no elbows, transitions, offsets, or other flow interruptions closer than 2.5 X WIDTH of the return duct opening. If turning vanes are not used in elbows, allow a length of straight duct equal to at least 5 X WIDTH. 2.5 X WIDTH WIDTH Duct Isolator Turning Vanes 2.5 X WIDTH WIDTH Vertical Unit Turning Vanes Dectron, Inc. September 24 Installation Supply Duct Refer to AMCA 1 guidelines for system effect considerations. Unit - Duct Connections HORIZONTAL UNIT INSTALLATION To prevent unexpected external energy loss, allow a section of straight duct with a length five times the blower width leaving the DRY-O-TRON. There should be no elbows, transitions, offsets, duct heaters, or other flow interruptions closer that 5 X the width of the blower. On special order, Dectron may be able to provide bottom, top, or side discharge blowers. On special order, Dectron may be able to offer reversed blower rotation. Some units may have external duct heaters (by others).

To prevent heater failures and hot spots, locate the heater at least 5 X the duct width away from the blower, or any air flow interruptions such as elbows and transitions. Duct Isolator HORIZONTAL UNIT Duct Isolator Elbow, tee, etc. Duct Heater (by others) Some units may have dampers to close off one or more ducts. Use care in assembling ducts so that these dampers will not be obstructed. 5 X WIDTH WIDTH VERTICAL UNIT Duct Isolator 5 X WIDTH WIDTH 1. Air Movement and Control Association International, Inc. 30 West University Drive Arlington Heights, Illinois Dectron, Inc. September 2004 25 Standard Practice for Ducts Installation RETURN DUCT 2.5 W or more W WRONG The air will not be evenly distributed over the evaporator. Turning Vanes Always install vibration isolator. RIGHT Vanes and straight length allow air to flow evenly. RETURN DUCT Always install vibration isolator. WRONG The air will not be evenly distributed over the evaporator. Turning Vanes RIGHT Vanes and straight length allow air to flow evenly. INSTALLATION 20 or less 30 or more WRONG Air cannot follow this steep angle. RIGHT Air can follow this transition. SUPPLY DUCT Always install flexible duct connection. 5W or more WRONG Reduction of airflow will result from the elbow being too close. RIGHT Sufficient straight length allows proper air flow. Flexible duct connection absorbs vibration. Important! - Never run the blower without the filters in place. Regardless of filters, never run the blower when construction dust is present. The resulting heat exchanger damage is not covered by the Dectron warranty. Important! - Airflow must be set and confirmed before the refrigeration system is adjusted. Important! - Airflow must be set with the air-side doors or access panels closed. Adjust airflow Before the DRY-O-TRON is operated, the air flows in the supply duct and exhaust duct (if connected to the DRY-O-TRON ) must be measured and set by a qualified air-balance technician.