1. Manuals
  2. Brands
  3. RECO Manuals
  4. Blower
  5. 934
  6. Operating manual

RECO 934 Operating Manual

Electric hot air blower track switch snow melter 230/460/575 vac 1 & 3 phase 60 kw load capacity
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
OPERATING MANUAL
MODEL NO. 934 & NO. 937
ELECTRIC HOT AIR BLOWER
TRACK SWITCH SNOW MELTER
230/460/575 VAC 1 & 3 PHASE
60 KW LOAD CAPACITY
MANUFACTURED
BY
RAILWAY EQUIPMENT COMPANY
th
525 9
STREET SOUTH
DELANO, MINNESOTA 55328
TEL. 763-972-2200
FAX. 763-972-2900
E-Mail:
Support: Techsupport@rwy.com
Sales: Sales@rwy.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 934 and is the answer not in the manual?

Questions and answers

Summary of Contents for RECO 934

  • Page 1 OPERATING MANUAL MODEL NO. 934 & NO. 937 ELECTRIC HOT AIR BLOWER TRACK SWITCH SNOW MELTER 230/460/575 VAC 1 & 3 PHASE 60 KW LOAD CAPACITY MANUFACTURED RAILWAY EQUIPMENT COMPANY 525 9 STREET SOUTH DELANO, MINNESOTA 55328 TEL. 763-972-2200 FAX. 763-972-2900 E-Mail: Support: Techsupport@rwy.com...

  • Page 2: Table Of Contents

    Table of Contents Warnings and Cautions ......................1 General Information ........................ 4 2.1. Model Number Description ....................4 2.2. Standard Features ......................4 Component Description ......................6 3.1. Main Hot Air Blower (HAB) Unit ................... 6 3.2. Standard Ductwork ......................7 3.3.
  • Page 3 Snow Detector ........................29 9.1. Snow Detector Installation ..................... 29 9.2. Snow Detector Operation ....................30 9.3. Snow Detector Maintenance ..................30 9.4. Snow Detector Troubleshooting ..................31 Specifications ........................32 Drawings ..........................33 Limited Warranty ....................... 34...

  • Page 4: Warnings And Cautions

    1. Warnings and Cautions CAUTION GENERAL HAZARD WARNING FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS INJURY AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION, BURN, ASPHYXIATION, CARBON MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK.
  • Page 5 PLEASE READ THIS INSTRUCTION MANUAL ENTIRELY BEFORE HANDLING THIS MATERIAL OR ATTEMPTING TO INSTALL, OPERATE, OR SERVICE THIS HOT AIR BLOWER SYSTEM. PLEASE READ THE WARNINGS AND CAUTIONS LISTED BELOW. SHEET METAL EDGES MAY BE VERY SHARP AND CAN CAUSE SEVERE CUTS OR LACERATIONS. PROTECTIVE GLOVES AND CLOTHING SHOULD BE WORN.
  • Page 6 THIS SNOW MELTER SYSTEM HAS BEEN DESIGNED TO PROVIDE DEPENDABLE EFFECTIVE OPERATION IN ALL WEATHER CONDITIONS WITHOUT SWITCH COVERS. SWITCH COVERS MAY CAUSE HIGHER AIR TEMPERATURES. IF SWITCH COVERS ARE USED, YOU MUST DETERMINE A SAFE OPERATING AIR TEMPERATURE AND ADJUST BURNER PARAMETERS ACCORDINGLY. ADJUSTMENT OF BURNER PARAMETERS MAY NEGATIVELY AFFECT BURNER PERFORMANCE AND COMBUSTION CHARACTERISTICS TO THE EXTENT THAT THE BURNER MAY BE UNABLE TO MAINTAIN COMBUSTION.

  • Page 7: General Information

    2. General Information 2.1. Model Number Description 2.2. Standard Features Here is a list of standard features that come with the EHAB unit: • HAB Complies with AREMA 12.6.10 • Two stage operation that allows savings on fuel costs. Second stage runs at 50% output of the first stage.
  • Page 8 • Main circuit breaker. • Audible tone before blower startup. • Weather-tight gasketed control enclosure. • Status indicating lights for all control functions. • Start delay timer for sequential startup. • Run timer for timed operation. • Selectable "Transparent" snow detector operation. •...

  • Page 9: Component Description

    3. Component Description 3.1. Main Hot Air Blower (HAB) Unit a. Main Circuit Breaker Provides main over-current protection and manual on-off control of electrical power. b. Motor Contactor Provides automatic blower motor control, with high current contacts. c. Motor Overload Relay Protects the blower motor from an over-current condition.

  • Page 10: Standard Ductwork

    3.2. Standard Ductwork a. Heat Duct The first section of ductwork attached to the main HAB unit. This duct contains the heaters, air flow switch, and high temp sensor. b. Flex Duct Connects the heat duct to the offset duct. It is a section of flexible duct, enclosed in an insulated sheet metal wrapper.

  • Page 11: Optional Ductwork

    j. Switch Point Nozzle These nozzles direct heated air down the switch point. They are mounted on the outlet duct. They can be adjusted for proper airflow direction. Nozzles may be shortened by up to 10” for proper fit. k. Point Nozzle Isolating Kit This is an electrically insulating gasket with insulating washers and hardware to provide isolation between the nozzles and the outlet duct.

  • Page 12: Installation

    4. Installation NOTE: The installation should be done in this order: 1. Tie Duct Outlet Duct / Offset Duct 2. Main HAB Unit / Flex Duct 3. Point Nozzles and Track Duct 4. Electrical PLEASE READ THROUGH ALL INSTRUCTIONS BEFORE BEGINNING INSTALLATION 4.1.

  • Page 13: Main Hab Unit

    4.2. Main HAB Unit 1. The base of the main HAB unit has four slotted mounting holes. 2. Refer to foundation assembly drawing (9288-0202) for the assembly of the optional mounting foundation. 3. Use the provided HAB positioning drawings to determine the approximate position and height of the mounting foundation.

  • Page 14: Point Nozzles And Track Ducts

    13. Adjustable air intake screens. To start the HAB in a new location, set the intake screens in the closed position. If there is a moisture problem, where frost builds up on the intake screens, these screens can be set in the open position to improve the airflow into the blower.

  • Page 15: Electrical Connection

    4.4. Electrical Connection a. Knockouts There are knockouts on the side and bottom of the control enclosure for incoming electrical wires. b. Incoming Power The incoming power should be connected directly to the main circuit breaker. NOTE: When the main hot air blower unit is started for the first time, verify that the motor is turning the correct direction.
  • Page 16 f. Fail Reply fail can be done two ways: Dry contact closure: Terminal posts TS1-5 and TS1-4 will provide a dry contact closure for fail when the unit is in a fault mode. +24 VDC: Place a jumper between terminal posts TS1-2 and TS1-4. +24 VDC fail is now present on post TS1-5 with common at terminal post TS1-6.

  • Page 17: Control Module

    5. Control Module 5.1. Description The hot air blower control module contains all of the elements and functions necessary for advanced snow melter operation. The unique microcomputer has been programmed with logic and timing sequences to provide complete heater control as well as operational control and system interface.

  • Page 18: Set-Up And Adjustments

    5.2. Set-Up and Adjustments To change settings and adjust times do the following: Right Arrow Button Pushing the right arrow button will cycle forward through the menus. Each time you press the right arrow button you will advance one menu selection. Left Arrow Button Pushing the left arrow button will cycle back through the menus.

  • Page 19: Password 0 And 5 Menus

    5.3. Password 0 and 5 Menus NOTE: The following items listed below are for password 5. Password 0 has the same set of menu categories but does not have all the same menu selections in each category. It will be denoted which menu selections you can only see with password 5. The controller for these passwords has 4 basic menu categories: 1.
  • Page 20 5.3.3. Set Points a. Password The default password is 0. Most setpoints can be changed using 0; critical setpoints require 5 to be entered in. To enter in the password, use the up or down arrow buttons. b. Select Temperature Setpoint The ambient temperature below which the unit will energize is set on this screen.
  • Page 21 g. Select Fault Indication (Password 5) The choices are OFF or ON. With fault indication off, indication will remain off if faults are present. With fault indication on, indication will remain on if faults are present. h. Select Start Delay Value (Password 5) The start delay timer can be set from 0 to 250 seconds in 10 second increments.
  • Page 22 n. Select F or C (Password 5) Sets the temperature scale to either Fahrenheit or Celsius. o. My IP Address This is the IP address for your HAB unit. p. Machine Serial Number (Password 5) Machine serial number is the serial number of the whole HAB unit. q.

  • Page 23: Push Buttons And Led Status Indicating Lights

    5.4. Push Buttons and LED Status Indicating Lights 5.4.1. Push Buttons a. Auto This position will allow operation by placing a circuit closure across terminal posts 1 and 2. It will also allow operation by an optional snow detector. b. Off If off, HAB cannot be run from remote or snow detector.
  • Page 24 h. Heater Contactor 2 On when HC2 is enabled. This contactor will be powered for high or low heat output. i. Over Temp OK On when the unit is NOT in over temp fault mode. j. Indication On when there is a circuit closure across terminal posts 1 and 2 and the unit is operating, or the air temperature is above the set point.

  • Page 25: Operation

    5.5. Operation With the “auto” button selected, the unit can be activated by applying a circuit closure between terminals TS1-1 and 2. If the outside temperature is above set point the unit will not start a snow melt sequence but will turn on the “indication” LED and provide a relay contact closure between TS1-3 and 4 to indicate to the remote station that the unit is operational.
  • Page 26 SNOW DETECTOR OPERATION: If the unit is operating with one or two optional snow detector assemblies and moisture is detected by either (or both), a snow melt sequence will begin, provided that the air temperature is below the set point. The unit will start as described in section 5.3.3 D (Select Snow Timer).

  • Page 27: Fault Conditions

    5.6. Fault Conditions a. Air Flow Switch On Fault During startup the processor checks the status of the airflow switch. If the airflow switch is closed or shorted the blower motor will turn on and the blower will run a 6- minute purge to try to clear the airflow switch.
  • Page 28 f. Check Fuse #6 Snow Head #1 Fuse # 6 is tripped. Check the following circuits: • Check snow detector head # 1 and wiring. • Check Duct pressure sensor and wiring. • After problem is corrected, leave power off for 30 seconds and fuse will reset. g.
  • Page 29 m. Duct Pressure Low Duct pressure low is caused by not enough duct back pressure. Possible causes are missing flame cover or missing duct work. n. Duct Pressure High Duct pressure high is caused by too much duct back pressure. Possible causes are duct work obstructions.

  • Page 30: Seasonal Maintenance

    6. Seasonal Maintenance Follow the steps listed below, depending on which season you are in, to do maintenance on your EHAB unit(s). 6.1. Spring 1. Turn off electric power at source. Disconnect and remove the control module. Store the module in a clean, dry place 6.2.

  • Page 31: Troubleshooting

    8. Troubleshooting 8.1. Unit Does Not Start 1. Check circuit breaker. 2. Check control fuse. 3. Check for 18VAC between the following points: a. TS1-6 and TS1-7 b. TS1-6 and TS1-8 c. Change T1 control transformer if either measurement is incorrect. 4.

  • Page 32: Snow Detector

    9. Snow Detector 9.1. Snow Detector Installation 1. The snow detector sensing circuitry is contained within the control module. All that is required for snow detector operation is to connect the sensing head(s). 2. Either one or two sensing heads may be used. 3.

  • Page 33: Snow Detector Operation

    9.2. Snow Detector Operation NOTE: A snow detector sensing head only detects moisture. With temperature sensing capability, the HAB unit assumes moisture is due to snow when the air temperature is below set point. All operating functions are similar to remote operation with the following exceptions: 1.

  • Page 34: Snow Detector Troubleshooting

    9.4. Snow Detector Troubleshooting NOTE: A newly-installed snow detector sensing head should operate 15-20 minutes to allow the internal heater to reach normal operating temperature. 9.4.1. No Heat On the Sensing Head 1. Check for voltage between terminal post 6 and 7, and between terminal post 6 and 8.

  • Page 35: Specifications

    10. Specifications Voltage 230VAC, 1PH 60 HZ, 250/300 Amp 2 HP, 3450 RPM, TEFC Motor 60 Amp Starting Current 9 Amp Running Current Airflow 2000 CFM KW Output 60 KW Indication Contacts 30VDC 1A or 125VAC 300mA Voltage 480VAC, 1PH 60 HZ, 150 Amp 2 HP, 3450 RPM, TEFC Motor 39 Amp Starting Current...

  • Page 36: Drawings

    11. Drawings EHAB 480V 60KW 1PH AC DRIVE LOW PROFILE 9378-1352 EHAB 240V 60KW 1PH 9348-1161 EHAB CONTROL 240V 60KW 1PH AC DRIVE 9348-2161 HEATDUCT 240V 60KW 1PH 9348-3170 EHAB 240V 60KW 3PH 9348-1261 EHAB CONTROL 240V 60KW 3PH 9348-2261 EHAB 480V 60KW 1PH 9348-1352 EHAB CONTROL 480V 60KW 1PH AC DRIVE...

  • Page 37: Limited Warranty

    12. Limited Warranty Railway Equipment Co., Inc. (“Railway”) warrants all of its products to be free from defects in material and workmanship when used under specified operating conditions and within specified limits. Railway’s warranty shall extend for a period of two (2) years from the date of shipment to the original purchaser. This warranty is expressly in lieu of and excludes all other expressed or implied warranties, including but not limited to warranties of merchantability and fitness for a particular purpose.

This manual is also suitable for:

937

Table of Contents