Energy Tech Laboratories MR212 manual Remote Panel Option

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Remote Panel Option

The Remote Panel is a device used to control the operation of the heater from a remote location. This unit is available in both a “2 Position” or “3 Position” configuration and with or without a cooling output. It also will accommodate both the Maxitrol discharge temperature dial and the Maxitrol space sensing Selectrastat. It is important to understand the following Remote Panel controls and uses:

1

3

 

4

2

FLAME

FAILURE

CLOGGED

FILTER

1.Manual/Off/Auto Switch - Used to control blower operation and tempering mode of unit. The AUTO position allows the unit to “decide”, through the use of the intake air thermostat, whether or not heating is needed. The MANUAL position allows the user to control whether or not heat is needed. The OFF position will turn the blower off when a “3 Position” remote panel is ordered. The OFF position will disable all temperature controls when a “2 Position” remote panel is ordered and fan power is then controlled by the pre-wire package only.

2.Heat/Vent Switch – This switch is powered when the Manual/Off/Auto switch is in the MANUAL position. It is used to control the tempering mode of the unit. The VENT position will prevent the burner from operating and the heater will deliver untempered air. The HEAT position will force the burner on and the unit will heat the incoming air. This switch becomes a Heat/Vent/Cool switch when the cooling interlock is ordered. This option provides a 120V cooling output from the remote panel.

3.Lights- Displays the current status of unit features. The light definitions are as follows:

POWER - Illuminated when there is power to Remote Panel. BLOWER ON - Illuminated when the blower motor is powered.

BURNER ON - Illuminates after pilot flame has established and main valve is powered. FLAME FAILURE - Illuminated when the Flame Safety Control is in Alarm mode. CLOGGED FILTER – (Optional) Illuminated when the Intake Filters are Dirty.

4.Temperature Control – Controls the discharge temperature of a standard unit. The temperature dial is replaced with Maxitrol Selectrastat in Space Heating applications and is used to control the space temperature.

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Image 20 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 Pressure Table GasGas Connection Sizes Motorized Intake Damper Copper Wire AmpacityElectrical 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. Blower Flame Safety Control Flame Safety Controller DC Flame Signal Air Flow Switch Sequence of OperationOperation Summary Maxitrol Amplifier High Temperature LimitModulating Gas System 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