Thomas & Betts BE, FE Check Installation and Start-Up, Check the installation prior to start-up

Page 19

24. Check Installation and Start-Up

Check the installation prior to start-up:

oCheck suspension. Unit must be secure and level.

oBlower Model - Check to be sure that all shipping supports have been removed. Rubber feet must be on the motor bracket bolts. See Paragraph 4.

oCheck clearances from combustibles. Requirements are shown in Paragraph 6.

oCheck vent system to be sure that it is installed according to the instructions in Paragraph 9.

oCheck piping for leaks and proper gas line pressure. Bleed gas lines of trapped air. See paragraph 10.

oCheck electrical wiring. Be sure all wire gauges are as rec- ommended. A service disconnect switch should be used. Verify that fusing or circuit breakers are adequate for the load use.

oCheck that any field-installed options have been included in the installation.

oBlower Model - Check belt tension. See Paragraph 14.

Start-Up -- Typical Operating Sequence:

1.Set thermostat at lowest setting.

2.Turn on main and pilot manual gas valves.

3.Turn on the power to the unit.

4.Set the thermostat to desired setting.

5.Thermostat calls for heat, energizing the venter motor.

6.Venter pressure switch closes, firing the unit, after pilot prov- ing sequence.

7.Fan control senses heat exchanger temperature, energizing the fan or blower motor.

8.If the flame is extinguished during the main burner opera- tion, the safety switch closes the main valve and recycles the spark gap.

On units equipped with lockout device, if the pilot is not es- tablished within 120 seconds, the unit locks out and must be reset by interrupting power to the control circuit. (See light- ing instructions on the heater.)

Check installation after start-up:

oWith the unit in operation, measure manifold gas pressure. Manifold pressure for natural gas should be 3.5" w.c. and 10" w.c. for propane gas. See Paragraph 10.

oTurn the unit off and on, pausing two minutes between each cycle. Observe for smooth ignition.

oBlower Model - Check motor amps with an amp meter. The maximum amp rating on the motor nameplate must not be exceeded.

oPlace 'Owner's Envelope" containing Limited Warranty Card, this booklet, and any optional information in an accessible location near the heater. Follow the instructions on the enve- lope.

DANGER: The gas burner in this gas-fired equipment is designed and equipped to provide safe and economically controlled complete combustion. However, if the installation does not permit the burner to receive the proper supply of combustion air, complete combustion may not occur. The result is incomplete combustion which produces carbon monoxide, a poisonous gas that can cause death. Safe operation of indirect-fired gas burning equipment requires a properly operating vent system which vents all flue products to the outside atmosphere. FAILURE TO PROVIDE PROPER VENTING WILL RESULT IN A HEALTH HAZARD WHICH COULD CAUSE SERIOUS PERSONAL INJURY OR DEATH.

Always comply with the combustion air requirements in the installation codes and in Paragraphs 6 and 7. Combustion air at the burner should be regulated only by manufacturer-provided equipment. NEVER RESTRICT OR OTHERWISE ALTER THE SUPPLY OF COMBUSTION AIR TO ANY HEATER. Indoor units installed in a confined space must be supplied with air for combustion as required by Code and in Paragraph 7 of this heater installation manual. MAINTAIN THE VENT SYSTEM IN STRUCTURALLY SOUND AND PROPERLY OPERATING CONDITION.

Mfg P/N 98807 Rev 8, Page 19

Page 18 Page 20
Image 19
Page 18 Page 20
Contents Unit Heaters Gas-Fired, Power-VentedTable of Contents Model FE and beFan-type unit heater is connected to a duct system Installation CodesWarranty Special Installations Aircraft Hangars/ GaragesFan-Type, Power-Vented Unit Heater Dimensions inches DimensionsDimensions mm Blower-Type, Power-Vented Unit Heater Dimensions inches Dimensions contdUnit Heater Location Uncrating and PreparationClearances & Combustion Air 25-400 6152 18457 12305 Clearances and Combustion Air contdSuspending the Heater SuspensionSpecific Venting Requirements read all before Optional, Field-Installed Hanger KitsFour-Point Swivel Connectors Option CK10 See a VentingVenting contd Structure Horizontal Vent Terminal ClearancesLocation all directions unless specified Gas Piping and Pressures Manifold or Orifice Pressure SettingsSizing a Gas Supply Line Thermostat and Thermostat Connections Electrical Supply and ConnectionsInstructions to Check Manifold Pressure Field Control Wiring Length and Gauge Typical Wiring Diagrams -- Pages 12Model Size Speed Form 436, Mfg P/N 98807 Rev 8, Blower Motor Adjusting Belt TensionThermostat Connections contd Fan MotorLimit Control Blower Speed AdjustmentBlower Rotation Fan ControlPilot and Ignition System Combustion Air Proving SwitchBurner Air Adjustment Gas ValveStart-Up -- Typical Operating Sequence Check Installation and Start-UpCheck the installation prior to start-up Check installation after start-upSizes Range Air Deflection Optional Vertical Louvers Option CD1Optional Duct Flange Option CD9 Blower Models only Optional Vertical LouversConversion Table Diameter to Area 400 4935 550Optional Guards Options CD10 & CD12 Blower Models only Model Filter Replacement P/N Size QtyOptional Multiple Heater Control Options CL31 & CL32 Burner Rack Hinged Down Burner Rack RemovalInstructions for Burner Rack Removal See Figures Pilot Flame Tubing Sensor LeadBurner Rack Removal contd Fan or Blower Burner OrificesFlash Carryover Heat ExchangerFan and Limit Controls Fan contdVenter Motor Operating Gas ValveTRO Uble PRO Bable C Ause Remedy TroubleshootingName Address Phone For Service or REPAIR, Follow These Steps in Order

BE, FE specifications

Thomas & Betts, a subsidiary of ABB, is renowned for its innovative electrical products and solutions, particularly in the fields of connectors, terminals, and wiring devices. Among its extensive product lineup, the FE and BE series stand out for their exceptional performance and versatility in various applications.

The FE (Flat Eye) and BE (Blank Eye) connectors are designed to provide reliable electrical connections in demanding environments. These connectors are particularly well-suited for industrial, commercial, and residential applications, ensuring that they meet the rigorous standards required in these fields.

One of the key features of the FE and BE connectors is their robust construction. Made from high-quality materials, they are resistant to corrosion, moisture, and other environmental factors that could compromise the integrity of the connection. The connectors are engineered to withstand high temperatures and mechanical stress, making them ideal for use in harsh conditions where reliability is essential.

Moreover, the design of FE and BE connectors facilitates easy installation and maintenance. The connectors come with user-friendly features such as a clear labeling system and intuitive locking mechanisms, ensuring a secure fit and minimizing the risk of connection failure. Additionally, these connectors are compatible with various wire sizes, offering flexibility for different projects.

Technologically, Thomas & Betts has integrated advanced manufacturing processes to ensure precision and consistency in the production of FE and BE connectors. This attention to detail results in products that not only meet but often exceed industry standards, providing customers with peace of mind regarding their electrical systems.

In terms of performance, the FE and BE connectors deliver exceptional conductivity, which is critical for minimizing energy loss and ensuring efficient operation in electrical systems. This characteristic is especially important in applications where energy efficiency and reliability are paramount.

In summary, Thomas & Betts FE and BE connectors embody a perfect blend of durability, ease of use, and technological advancement. Their robust design, compatibility with various wire sizes, and resistance to environmental stressors make them a preferred choice for professionals in the electrical industry. With a commitment to quality and innovation, Thomas & Betts continues to set the standard in electrical connectivity solutions, ensuring that their products remain at the forefront of the industry.
Top Page Image Contents