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WOODMASTER OUTDOOR FURNACES • OWNER'S MANUAL
Changing ETC Settings
NOTE: The procedures are the same whether you are using degrees (F) or
degrees (C).
Changing the Set Point
1. Press and hold the set button for 3 seconds or until the °F is flashing.
The number that appears is the Set Point (Fig. 1).
2. Use the up or down arrow buttons to adjust the setting.
3. Press the set button to lock in the settings.
Changing the Hy
1. Press and hold the down arrow and set buttons until the display reads
Hy (Fig. 2).
2. Press set button, the number displayed is the differential (Fig. 3).
3. Release the arrow down and set buttons.
4. Press the arrow up or down button to adjust (Fig. 4).
5. Press the set button (Fig. 5).
6. The display will read ALL for approximately 30 seconds, (Fig. 5) it will
then return to the water temperature reading (Fig. 6).
Changing the All
1. When the ETC reads ALL from the previous step, press the set button.
The number that appears is the Low Alarm temperature.
2. To adjust the number press the up or down arrow.
3. Press the Set button to lock in the setting.
Definitions
Set Point - The temperature at which the fan will shut down, until hysteresis
is achieved.
Hy, aka Differential - The amount, in degrees, the temperature has to drop in
order to start the fan.
ALL, aka Low Alarm - The temperature at which the furnace will shut down.
At which point the furnace should be reloaded and the control is reset.
NOTE: The temperature scale can be changed from Fahrenheit to Celsius
with the hot key from your WoodMaster Dealer.
CAUTION: Do not set your (SP) lower than your (ALL)!
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
WoodMaster Digital Aquastat Factory Settings
Set Point (SP)
170˚F
76.7˚C
Differential (HY)
10˚F
5.5˚C
Low Alarm (ALL)
120˚F
48.9˚C
WoodMaster Digital Aquastat Minimum and
Maximum Factory Settings
Set Point (SP)
100˚F to 180˚F
38˚C to 82˚C
Differential (HY)
1˚F to 45˚F
1˚C to 25˚C
Low Alarm (ALL)
-67˚F to 302˚F
-55˚C to 150˚C
