M-Series Technical Manual
5
Cambridge Air Solutions
TYPICAL SYSTEM OVERVIEW
CONTROL SYSTEMS:
MAXITROL SERIES 14
The Maxitrol Series 14 electronic discharge temperature
control system maintains a constant discharge
temperature. The standard control permits manual
adjustment of discharge temperature (55° to 90°F) from
inside the heater control enclosure. As an option, a
Remote Heat Adjust control with override capability to
130°F can be provided to allow manual adjustment of
discharge temperature (55° to 130°F) from either inside
the heater control enclosure or in the Remote Control
Station.
MAXITROL SERIES 14 WITH SPACE
THERMOSTAT
The Maxitrol Series 14 modulation controls function
as described above using the optional Remote Heat
Adjust control in conjunction with an electronic
space thermostat switch contact to increase discharge
temperature. The discharge temperature will increase
to a preset rise (0°F to 40°F) above the set point on the
Remote Heat Adjust control face based on the setting of
the override temperature dial, which is visible from the
top of the control.
MAXITROL SERIES 44
The Maxitrol Series 44 modulation controls maintain a
constant space temperature by increasing or decreasing
the discharge temperature. The Space Temperature
Selector is set to maintain the space temperature of the
heated space by controlling the heater output between the
MIN and MAX setting on the amplifier. The MIN dial
setting determines the minimum discharge temperature the
heater will deliver (40°F to 80°F). The MAX dial setting
determines the maximum discharge temperature the
heater will deliver (80°F to 140°F).
MAXITROL SERIES 44 / TAMPER PROOF
The Maxitrol Series 44 / Tamper Proof temperature
control system is similar to the Maxitrol Series
44 controls above except the adjustable Space
Temperature Selector control is replaced by two other
controls. The adjustable portion of the temperature
selector is typically mounted in the Remote Control Station
to prevent unwanted tampering of the temperature setting and
the non-adjustable space sensor is mounted in the space
being heated.
