Page 225 of Propane and Natural Gas Equipment by National Energy Equipment, Inc.

NATIONAL TOLL FREE DIRECTORY 1-866-574-5100 I ON THE WEB www.nee.ca  MAXITROL MODULATING SYSTEMS Selectra Electronic Gas Flame Modulation Systems Selectra Series 14 Systems Provide continuous flame adjustment a method superior to external activation such as motors and butterfly valves. Available for environmental climate control, as well as industrial or commercial heating processes. Selectra provides immediately precise and stable temperatures. Selectra controls temperature by modulating gas pressure for both direct and indirect fired equipment. Individual component functions include: temperature sensing, temperature selection, electronic signal processing, and gas modulation regulation. Designed primarily for make-up air heating, as components of direct fired equipment. A discharge air temperature sensor is mounted within a mixing tube housing. Amplifiers are available with optional features such as adjustable low-fire start duration, and with integral or remote temperature selection. OEM or retrofit applications include environmental climate control, as well as industrial or commercial heating processes. Standard temperature adjustment range 55 to 90 F. All fuel gases are compatible with capacities to 30,000,000 BTU/H. Modulator Modulator Regulator (M/MR) Valves M (Modulator) valve requires a pressure regulator for high fire setting. MR (Modulator-Regulator) valve requires no pressure regulator up to 5 PSI. Valves Amplifier or Amplifier Selector Selection Method Remote Selector Model (if applicable) Sensor Options Override Stat Inlet Air Sensor M411, M511, M611, MR212D, E, G, or J A1014 or A1014L1 Single Remote TD114 TS114 MT1 or 2 T115 TS10765 Dual Remote TD114HD TS114 MT1 or 2 - - TD214 TS214 MT1 or 2 A1014-5590 or AD1014L1-5590 Single Integral - TS114 MT1 or 2 - TS10765 AD1214 Dual Integral - TS214 MT1 or 2 - - Note: Selector and sensor must have the same temperature range to be compatible. TD114 A1014 AD1214 TD114S AD1014 T115 MT2 TS114 MT1 M411, 511 M611 MR212 SERIES 14 BASIC SYSTEM SELECTRA SYSTEMS

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