Direct Gas Make-Up Air
26
There are multiple control methods available for
controlling the burner firing rate depending upon which
Maxitrol System was supplied with the unit. Identify the
system to better prepare for start-up and identify any
optional shipped loose accessories for installation.
Maxitrol 14 Series Amplifier
This system is used to maintain a constant discharge
air temperature when a call for heat is active. There are
varying versions of this amplifier.
Pre-Start: Direct Gas-Fired Heating
Accessory Identification
Maxitrol Series 14
Low fire start time
delay DIP switch
Discharge temperature
reference DIP switch
(remote or integral)
Set the discharge temperature
Typical 65°F (18°C)
Minimum: Typical: 55°F (13°C)
Maximum: Typical: 90°F (32°C)
Maxitrol 44 Series Amplifier
This system is used to maintain a room temperature set
point when a call for heat is active. There are varying
versions of this amplifier but they will always include at
least one shipped loose accessory.
Room Override
Control
Remote Selector
Dial
Room Temperature
Sensor
Remote Selector
Dial
Selectrastat
Maxitrol 44 Series
Maximum discharge
temperature setting
Typical: 100ºF (38°C)
Minimum discharge
temperature setting
Typical: 50ºF (10°C)
Low fire start time
(LFST) DIP switch
Temperature Control Identification
Optional shipped loose accessories include a remote
temperature dial or a room override thermostat.
Optional shipped loose accessories include a remote
temperature sensor, Selectrastat and remote selector
dial. The room temperature sensor and selector can be
combined as one with the selector dial on the face or
this system can be provided with the sensor body and
the dial as separate components.