Generac Power Systems MAC1.2G, Owner'S Manual

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Owner’s Manual for Indirect Fired Heater 15
Operation
Engine and Heater Shutdown
1. Turn burner switch to OFF.
2. Allow outlet air temperature to cool for at least 90
seconds.
IMPORTANT NOTE: Do not detach ducting until all air
pressure has been emptied from hose duct.
3. Press STOP.
4. Turn ignition key to OFF.
Thermostat
Figure 3-2. Thermostat Features
Changing Temperature Units
The thermostat is factory set to display temperature in
Fahrenheit. Press the up and down buttons simultane-
ously to convert to Celsius.
Thermostat Control
1. Press and hold the MENU button until the display
changes to flashing SP.
2. Press the up or down buttons to reach desired
function.
3. Press the MENU button to display current value of
function.
4. Press the up or down buttons until desired value is
reached.
5. Press the MENU button to save. The display will
return to the sensor temperature.
NOTE: If the MENU button is not pressed after changing
the setpoint value, the new value will not be saved.
See the table below for all thermostat functions.
A Temperature offset indicator
B Temperature units indicator
C Operating mode indicator
D Liquid Crystal Display (LCD)
E MENU button
F Output relay status indicator LED
G Down arrow button
H Up arrow button
CAUTION
(000295)
Equipment damage. Shut down the heater before
turning off the generator. Failure to do so could
result in equipment damage.
MENU
F
BIN
003820
A
D
C
B
H
F
E
G
Function Range
Factory
Setting
SP = Setpoint
-30 to 212 °F
(-34 to 100 °C)
30
diF = Differential 1 to 30 °F or C 5
ASd = Anti-short
Cycle Delay
0 to 12 minutes 1
OFS = Temperature
Offset
0 to 50 °F or C 0
SF = Sensor
Failure Operation
0 = output
de-energized
1 = output
energized
1