beautypg.com

Introduction and dimensions – Greenheck Maxitrol Series 44 User Manual

Page 2

background image

2

Introduction and Dimensions

A discharge air temperature sensor (and mixing tube) is a
means of limiting the minimum and maximum discharge air
temperature. The amplifier supplies output voltage to the
modulating valve. A wall mounted Selectrastat senses
space temperature and has an integral selector with either
a 55° to 90° F or 40° to 80° F range. Optionally, a remote
Temperature Sensor paired with a separate Temperature
Selector can be substituted for the Selectrastat.

Selectra SERIES 44 electronic gas flame modulation
systems are designed primarily for space heating, as
components of direct fired equipment. They may be
field installed on existing equipment or specified for new
equipment installation. All fuel gases are compatible.

The systems utilize Modulator or Modulator-Regulator
valves to control gas pressure. Amplifiers are available
with adjustable low-fire start duration.

(SEE PAGE 1)

MIXING TUBE (TS144 attaches internally)

(Space Temperature Sensor dimensions same except without front dial)

(Space Temperature Selector dimensions same)

A1044 AMPLIFIER

A1044L1 AMPLIFIER

SELECTRASTAT, TEMP. SELECTOR, SPACE TEMP. SENSOR