M-Series Technical Manual
43
Cambridge Air Solutions
c.1. If the Remote Control Station utilizes
a thermostat, refer to the Operating
Instructions for the Electronic Thermostat
or the TSS Controller in the Technical
Manual to set the thermostat at its highest
setting.
c.2. If another device in the Remote Control
Station controls the operation of the
heater, activate this device.
c.3. If the make-up air heater is not equipped
with a Remote Control Station, activate
that part of the control system which will
initiate the blower and burner operation.
d. After a short delay for damper operation,
the blower will energize, followed by
burner ignition after a delay for pre-purge
and igniter warm-up.
e. Adjust the applicable temperature control
and verify the heater output changes.
f. Reset the thermostat, if applicable, and
the temperature control to the desired
temperature.
g. Turn the mode selector switch to the
“Summer Ventilation” position. Verify the
blower operates.
15. FINAL HEATER PREPARATION
a. Turn the disconnect switch off.
NOTE: Be sure to wait 3 minutes before re-energizing
a VFD once the disconnect is turned to the “OFF”
position. Re-energizing a VFD before an off time of
three minutes could result in a VFD failure.
b. Set the Entering Air Thermostat (EAT) to
the specified temperature setting. Refer
to the Individual Component Description
Section in the Technical Manual for
additional information.
c. Remove the jumper wire from the high
limit, if one was used. Reset the high
limit.
d. For the Maxitrol Series 44 control system,
set the “MIN” and “MAX” setting of the
amplifier to the application specifications.
e. Verify the blower and burner service
switches are in the “REMOTE” position.
f. Return the Technical Manual, The wiring
diagram and all VFD paperwork including
the VFD parameters in the watertight
bag to the manual holder. Be sure to seal
bag to prevent moisture from damaging
paperwork.
g. Perform a visual inspection of all wiring
and gas valve plugs to ensure they have
been properly replaced.
h. Replace and fasten all covers and panels.
Turn the disconnect switch “ON”.
