Energy Tech Laboratories Modular Direct Fired Heaters Troubleshooting Flowcharts, Nothing Happens

Page 23

Troubleshooting Flowcharts

Nothing Happens

Is Overload

tripped on

starter?

NO

Is Freeze-Stat

open?

YES

Reset & measure FLA

of motor. Is it higher

 

 

 

 

 

 

than rating?

YES

Adjust or

 

Replace

YES

Adjust

or

change Pulley

Blower runs but there is no heat

 

 

 

Is the air flow LED

 

NO

 

Adjust pulley to

 

 

 

 

 

 

 

 

on Flame Saftey

 

 

achieve proper

 

 

 

 

 

 

 

 

 

 

 

illuminated?

 

 

 

 

 

airflow.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is outside air cooler than

 

NO

Proper

 

 

 

 

intake air thermostat

 

 

 

 

economizer

 

 

 

 

 

 

 

 

 

 

 

 

setting?

 

 

 

 

operation

 

NO

YES

 

 

 

YES

Is High Temp.

Limit Tripped?

 

 

Reset

Is end switch on

NO

Adjust or

Motorized

 

Replace

 

Damper closed?

 

actuator

 

NO

 

 

 

 

Is there a

NO

Remote Panel

 

Installed?

 

 

YES

 

 

 

NO

Is Remote set to

"Heat"

 

 

 

 

 

YES

 

 

 

 

Refer to Flame

 

Safety Guide

 

 

 

 

Check wiring

Set Remote

Panel to

"Manual" and "Heat" mode.

Burner lights but

heater stays in

Low Fire

 

No

 

Is there voltage on

Replace

Terminal #17

 

 

FSC

 

 

 

 

Yes

Burner lights but heater

stays in High Fire

Is there a jumper between terminals 2 & 3 on the

Maxitrol Amplifier?

Yes

No

Install Jumper

Are all valves

powered and open?

Yes

With wires 3 & 4 removed from the Maxitrol Amplifier, is there 9.5K to 11K Ohms between the wires?

Yes

Remove Terminal #4

from the Maxitrol

Amplifier. Does the

heater go into High Fire?

No

Check valve wiring

 

 

 

 

or open valves

 

 

 

 

 

 

 

 

 

 

 

No

Replace

 

 

Discharge Air

 

 

 

 

 

 

 

 

 

Sensor

 

 

 

 

 

 

 

Is

there a short or open

No

circuit in Modulating

 

 

Valve? Should be 45-55

 

 

Ohms (60-80 on MR212)

Is there a short circuit in the Remote Temperature Selector or wiring?

No

Is there an open circuit in the Discharge Air Sensor or wiring?

No

Is Plunger in the

Modulating Valve jammed?

Inspect and clean. It

should operate freely in

the sleeve.

No

Foreign object holding valve open. Remove

Yes

Yes

Repair short or

replace

Temperature

Selector

Repair Circuit or

replace the

Discharge Air

Sensor

 

 

 

 

 

 

No

 

 

Yes

 

 

 

 

 

 

 

 

 

Yes

 

Replace

 

 

Replace

 

 

 

 

Modulating

 

 

 

Amplifier

 

 

 

 

 

 

 

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

With wires 1 & 2

 

 

 

 

 

 

 

 

 

removed from the

No

Replace the

 

 

Maxitrol Amplifier, is

Temperature

 

 

 

 

 

 

 

there 9.5K to 11K Ohms

 

 

 

Selector

 

 

 

between the wires?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bottom plate and inspect valve and seat. Clean or replace valve.

23

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Contents Installation, Operation, and Maintenance Manual Table of Contents Warranty Site Preparation InstallationAssembly MechanicalRecommended Supply Ductwork Sizes Roof Mount Installation Installation with Exhaust FanPage Gas Pressure Table GasGas Connection Sizes Motorized Intake Damper Copper Wire AmpacityElectrical Fan to Building Wiring Connection Remote Control PanelStart Up OperationMain Burner Adjustment Heater Start Up Summary Yes Adjust pilot flame Lock unit into High fireSetscrew Torque Final Start Up ProcedureMaximum RPM and HP Chart Pulley Adjustment Illustration Pulley Adjustment10 20 IN. Blower Pulley Combination ChartSequence of Operation Flame Safety ControlFlame Safety Controller DC Flame Signal Air Flow SwitchOperation Summary Maxitrol Amplifier High Temperature LimitModulating Gas System Optional Remote Panel Circuit Blower SwitchComponents Remote Panel Option Airflow Troubleshooting Chart TroubleshootingProper Spark Gap Burner Troubleshooting ChartLight Indication Condition Possible Cause Remote Panel Troubleshooting ChartNothing Happens Troubleshooting FlowchartsFlame Safety Service Guide Flame Safety Service Guide General Maintenance MaintenanceYearly Filter Quantity ChartWeeks after startup Every 3 monthsJob Information Start-Up and Maintenance DocumentationMaintenance Record Factory Service Department

Modular Direct Fired Heaters specifications

Energy Tech Laboratories has established itself as a leader in the development of innovative modular direct fired heaters, designed to meet the evolving demands of industries that require efficient and effective heating solutions. These heaters are engineered to offer versatility, reliability, and enhanced performance, making them suitable for a broad range of applications.

One of the standout features of Energy Tech Laboratories' modular direct fired heaters is their modular design. This allows for easy scalability and customization, enabling users to adjust the heating capacity according to specific requirements. The modular aspect also facilitates straightforward installation and maintenance, reducing downtime and operational costs.

The heaters utilize advanced combustion technology that optimizes fuel consumption while minimizing emissions. This ensures not only a cost-effective operation but also compliance with environmental regulations. By combining high thermal efficiency with a low carbon footprint, these heaters contribute to sustainable energy practices.

In addition to their efficient combustion system, Energy Tech Laboratories incorporates state-of-the-art control technologies in their heaters. These systems allow for precise temperature regulation and can be integrated with existing Building Management Systems (BMS) for enhanced monitoring and control. Users can benefit from real-time data and analytics, which help in diagnosing potential issues and optimizing performance.

Durability is another characteristic that sets these heaters apart. Constructed with high-quality materials, they are designed to withstand harsh industrial conditions, ensuring a long service life. The robust design minimizes the likelihood of breakdowns, which is critical for industries that rely on continuous operation.

Moreover, Energy Tech Laboratories emphasizes safety in the design of their modular direct fired heaters. Equipped with multiple safety features such as flame detection, gas leak detection, and emergency shutdown systems, these heaters are built to operate within stringent safety standards.

The flexibility of these heaters makes them suitable for various sectors, including oil and gas, manufacturing, and construction. Their ability to provide direct heat quickly and efficiently makes them ideal for processes that require consistent temperature control.

In conclusion, Energy Tech Laboratories' modular direct fired heaters represent an advanced solution for today’s energy needs. With their modular design, advanced combustion technologies, and focus on safety and durability, these heaters stand out as a preferred choice for industries seeking reliable and efficient heating solutions. Their commitment to innovation and sustainability positions them as a front-runner in the energy technology sector.