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Table of Contents
Summary of Contents for Misebach BBHD12-277
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Page 2: Table Of Contents
10) Preventative Maintenance of the Heater.................. 13 11) FAQ ............................14 12) Treatment Suggestions ......................17 13) Service Parts ..........................18 Figure list: 1) Total Assembly of BBHD12-277 2) Power Connections 3) Control Power 4) Thermostat 5) Thermal Switch and Fuses... -
Page 3: Components
BBHD12-277 Heater IMPORTANT INSTRUCTIONS Components 120VAC 277VAC Telescoping Receptacles Receptacles Pull Handle Lifting Handles Switch Panel Air Intake Hot Air Exhaust Figure 1a Figure 1b Digital Thermostat Main Power Resistor Figure 1c Ready Switch Power Switch Light Total Assembly BBHD12-277... -
Page 4: Specifications
BBHD12-277 Heater Specifications Blower 120VAC, single phase, 60Hz powered internally Control power 120VAC, single phase, 60 Hz Rating Continuous duty Power factor Load elements The current at each step is subject to a manufacturing tolerance of ±5%. Electro-statically powder coat, Red: PPG PCT69118 Air inlet and outlet are covered by metal screens. -
Page 5: Safety
BBHD12-277 Heater Safety This heater is designed for a variety of loads. Because of this, it is possible that voltages higher that those applied can be present inside the heater and at external connections of the heater. Work on the heater’s internal systems should only be attempted by highly trained technicians and only when power has been disconnected and cannot be reconnected to the unit. -
Page 6: A) Power Connections
BBHD12-277 Heater 15) Use this heater only as described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons. 16) Always plug heater directly into a wall outlet/receptacle. Never use with a re-locatable power tap (outlet/power strip). -
Page 7: D) Exhaust Temperature
BBHD12-277 Heater Good air flow keeps the heater cool but can very easily move light debris such as paper, cardboard, and dust with great velocity. Loose materials around the heater, especially near the intake and exhaust, must be secured to prevent movement. Material on the exhaust side may be blown into and injure a bystander. -
Page 8: Operation
BBHD12-277 Heater Operation a) Pre-startup 1. Check housekeeping in the operational area and correct all unsafe conditions. Failure to do this may result in debris being blown around and may cause a fire hazard. 2. Position heater so that air will flow freely into the intakes and out of the exhaust port. - Page 9 BBHD12-277 Heater Master Plug 120VAC Cord Powering Controls Figure 3. Powering the Controls SET Button Temperature Controls Temperature Figure 4. Thermostat Display 7. The heater will now generate heat until the temperature at the thermostat reaches the desired temperature. The heater will automatically turn the heater elements on and off as required to control to the desired temperature being sensed at the thermocouple(s).
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Page 10: C) Shutdown
BBHD12-277 Heater c) Shutdown 1. Put the Heat Applied switch in the OFF position and lower thermostat value to below standard room temperature. 2. Allow fans to operate at least three minutes or until exhaust air is cool before shutting them off. -
Page 11: Troubleshooting
BBHD12-277 Heater Troubleshooting Make sure the master 120V receptacle is powered. Thermostat/Heater Will Ensure Main Power switch is in the ON position. Not Turn On Check for debris preventing fan from turning. Blower will not turn on. Check control fuse (FS1). See Figure 5. -
Page 12: Replacing Fuses
BBHD12-277 Heater Replacing Fuses Using a #2 Phillips head screwdriver, remove the 18 screws from the cover panel. Carefully remove the panel from the unit. Service on fuses can then be performed. #10-24 Truss Head Bolt Figure 6. Replacing Fuses Replacing Resistors Consult Mosebach Manufacturing Co. -
Page 13: Preventative Maintenance Of The Heater
BBHD12-277 Heater 10) Preventative Maintenance of the Heater 1. Do not use a power washer to clean off the exterior of the unit. It is high voltage electrical equipment. Component Action Frequency Entire Unit Walk around the load bank Check every use... -
Page 14: Faq
About BBHD12-277 Heaters Why are there two 120V and 277V inputs? The 120V and 277V inputs can supply only a limited power based on the size of the circuit. The 4 inputs split the total amperage draw of 60A into two 14A input and two 16A... - Page 15 BBHD12-277 Heater What size space can be treated with a BBHD12-277 Heater? Treatment times will vary depending on the type of construction and the conditions of the treatment area, the objects in the treatment area, and the voltage supplied to the unit.
- Page 16 BBHD12-277 Heater I want to use a generator. What kind of generator do you recommend? For our recommended generator, please refer to the BBHD12-277 Accessories quote. If you have not received an Accessories quote, contact a Mosebach sales representative. I hear a continuous clicking sound, what’s wrong? Clicking means that there is not enough air being moved through the heater.
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Page 17: Treatment Suggestions
BBHD12-277 Heater 12) Treatment Suggestions Adjustments must be made to treatment procedures for the given conditions in a treatment area. Effective treatment may require larger or multiple heaters depending on the size and conditions of a given treatment area. Correct power must be supplied to the unit. -
Page 18: Service Parts
Initial Release 9/26/16 Rev. Description Rev. By Date Copyright © 2016 Mosebach Manufacturing Company MOSEBACH MANUFACTURING COMPANY 1417 McLaughlin Run Road • Pittsburgh, PA 15241-3103 USA T: 412.220.0237 Customer Care F: 412-220-0236 www.mosebachresistors.com OM-BBHD12-277.doc September 26, 2016 “SAVE THESE INSTRUCTIONS”...
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