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16.
Other Settings
Manual Pump Operation Procedure
Use this procedure when bleeding air out of the system or when confirming proper operation of the pump(s).
1. Set the Power on/off button to the off position.
2. To circulate Priority 1, press and hold in the PRIORITY 1 switch for at least 5 seconds.
To circulate Priority 2, press and hold in the PRIORITY 2 switch for at least 5 seconds.
3. "P" flashes on the display and "of" lights.
4. "of" turns to "on" when the circulation flow rate reaches above the flow rate at which the water flow
switch turns on.
5. The pump stops either when the corresponding PRIORITY switch is pressed again or after 4 hours.
The pump also stops if the Power on/off button is set to the on position.
* The pump turns off if the water flow switch does not turn on after 5 minutes.
Set the flow rate as described on page 17.
Changing Other Features
Note:
- Set the Power on/off button to the off position when changing the settings.
The settings cannot be changed unless the boiler is turned off on the operation panel before dis-
connecting power.
- Change the settings within 10 minutes of reconnecting power to the boiler.
- If the temperature display is set to the Fahrenheit mode, item number "1" is not displayed; "180" is
displayed instead.
- Settings cannot be changed during manual pump operation mode.
- Item number 1 (Priority 1 maximum temperature setting) alone can be set at any time.
Table of Setting Items
Item No.
Item
Priority 1 maximum
1
temperature setting.
12
Celsius/Fahrenheit
display mode.
Priority 1 operation setting. on (on)
13
14
Priority 2 operation setting.
15
Freeze prevention function.
16
Displayed temperature
selection.
Operation Panel
Display
Priority 1
Priority 2
Setting Procedure
1. Set the Power on/off button to the off position.
2. Disconnect, then reconnect power to the boiler.
3. Press the user setting switch (SET) and hold it in for 2 seconds or more.
4. Press the user setting switch (SET) to select the number of the item to be changed.
5. Use the
and
temperature adjustment switches to change the selected item.
6. Once all settings are finished, set the Power on/off button to the on position to validate the settings.
Choices (factory defaults shaded)
140 to 170°F (5°F steps)
60 to 80°C (5°C steps)
176 ,180°F
83°C.
(180°F by factory default)
°F (Fahrenheit)
°C (Celsius)
oF (off)
on (on)
oF (off)
2 (combustion off/
1 (combustion on/
pump circulation on)
pump circulation on)
2 (circulation temperature) When changed to 2, the circulation temperature is displayed.
1 (set temperature)
When item no. 13 is set to "oF", item no. 1 is not displayed.
Because the display is set to the Fahrenheit mode by
factory default, "180" °F is displayed for item 1.
When set to "oF", Priority 1 does not operate.
When set to "oF", Priority 2 does not operate.
3 (combustion off/
When using anti-freeze, it is recommended you change this setting to "3".
pump circulation off)
Temperature adjustment switches
Power switch
User setting switch
Remarks
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