Energy Tech Laboratories MR212 manual Troubleshooting Flowcharts, Nothing Happens

Page 24

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.

24

Image 24
Contents Installation, Operation, and Maintenance Manual Page Table of Contents Warranty Installation AssemblyMechanical Site PreparationRoof Mount Installation Installation with Exhaust Fan Recommended Supply Ductwork SizesPage Gas Gas Connection SizesGas Pressure Table Copper Wire Ampacity ElectricalMotorized Intake Damper Remote Control Panel Fan to Building Wiring ConnectionOperation Start UpMain Burner Adjustment Yes Adjust pilot flame Lock unit into High fire Heater Start Up SummaryFinal Start Up Procedure Maximum RPM and HP Chart Pulley Adjustment IllustrationPulley Adjustment Pulley Setscrew TorquePulley Combination Chart 10 20 IN. BlowerFlame Safety Control Flame Safety Controller DC Flame SignalAir Flow Switch Sequence of OperationMaxitrol Amplifier High Temperature Limit Modulating Gas SystemOperation Summary Blower Switch Optional Remote Panel CircuitComponents Remote Panel Option Troubleshooting Airflow Troubleshooting ChartBurner Troubleshooting Chart Proper Spark GapRemote Panel Troubleshooting Chart Light Indication Condition Possible CauseTroubleshooting Flowcharts Nothing HappensMaintenance General MaintenanceFilter Quantity Chart Weeks after startupEvery 3 months YearlyPage Start-Up and Maintenance Documentation Maintenance RecordFactory Service Department Job Information

MR212 specifications

Energy Tech Laboratories has made significant strides in the field of energy management and efficiency with its groundbreaking product, the MR212. Designed for both industrial and commercial applications, the MR212 stands out for its cutting-edge technology and impressive features that cater to the evolving demands of the energy sector.

One of the main features of the MR212 is its advanced energy monitoring capabilities. Utilizing state-of-the-art sensors and algorithms, the device provides real-time data on energy consumption, helping businesses identify inefficiencies and optimize their energy use. This feature is crucial for organizations aiming to reduce operational costs and minimize their carbon footprint.

The MR212 is equipped with predictive analytics that harnesses machine learning to forecast energy needs based on historical data and usage patterns. This enables users to make informed decisions regarding energy procurement and management, ultimately leading to significant cost savings. Additionally, the system integrates seamlessly with existing infrastructure, making it easy to install and use without requiring a complete overhaul of current operations.

Another notable characteristic of the MR212 is its user-friendly interface. The device features an intuitive dashboard that offers visual representations of energy data, allowing users to monitor performance at a glance. Customizable alerts and notifications help users stay informed of any anomalies or significant changes in energy usage, facilitating prompt action and issue resolution.

The MR212 also supports integration with renewable energy sources, such as solar and wind power. This capability is essential for organizations looking to transition to greener energy alternatives and leverage incentives for using renewable technologies. By integrating seamlessly with these sources, the MR212 not only enhances energy efficiency but also promotes sustainability.

Moreover, Energy Tech Laboratories has ensured that the MR212 is built to withstand industrial environments. With robust construction and compliance with various industry standards, the device is designed for longevity and reliability, providing users with peace of mind.

In conclusion, the Energy Tech Laboratories MR212 is a comprehensive energy management tool that combines advanced monitoring, predictive analytics, and seamless integration with renewable energy sources. Its user-friendly interface and durability make it an ideal choice for businesses seeking to enhance their energy efficiency and sustainability practices. As the demand for smarter energy solutions continues to rise, the MR212 stands at the forefront, paving the way for a more efficient and sustainable future.