Electronic Modulation Gas-Fired Temperature 14 & 44
Controls/ Direct Fired Applications Models
systems from Maxitrol maintain precise, stable
gas-fired temperatures. Selectra’s unique electronic Modulator or Modulator-Regulator valves control gas flow with instantaneous response and continual adjustment. They are the superior alternative to mod motors and butterfly valves.
SPACE HEATING APPLICATIONS Series 44
Series 44 systems are designed primarily for space heating, as components of direct fired equipment.
A wall mounted Selectrastat senses space temperature and has an integral selector with either a 55º to 90º F or 40º to 80º F range. A discharge air temperature sensor (and mixing tube) is a means of limiting the minimum and maximum discharge air temperature.
Amplifiers are available with low-fire start duration feature.
Instead of a Selectrastat, a separate remote temperature sensor and selector can be substituted.
Series 14 MAKE UP AIR APPLICATIONS
Series 14 systems are 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 low-fire start duration, and integral or remote temperature selection.
• A room override thermostat provides space temperature control by raising the discharge air temperature to a preselected point - when used in conjunction with the remote temperature selector.
• An inlet air sensor (and mixing tube) provides inverse change in discharge air for each degree change in inlet air - when installed in a convenient duct location upstream of the burner.
• A dual temperature selector replaces TD114 to provide dual control for door heaters, or other applications such as paint spray booths.