Noritz WHiC56 Service Manual page 47

Manual Programming
(only do this if the data transfer on the reverse side is unsuccessful)
This procedure will require the remote controller.
Make sure the circuit board is completely connected including connector CN89.
If connected, in a multi unit configurations undo System Controller connections or Quick Connect Cord.
After Manual Programing, make sure all connections are made before making the initial circuit board settings.
1. Make sure the remote controller is off ( completely blank ), If it is ON, turn it OFF and wait for 10 seconds.
2. ...then disconnect
electrical power.
[ Remote controller ]
Power ON/OFF button
Display
(Item , Data)
MENU Button
ENTER Button
MW number
Remote Controller Settings
1. Within the first ten minutes of connecting electrical power, before
turning on the Power ON/OFF button, press the "MENU" button
on the remote controller and select "Initial settings" by pressing
the "▲" or "▼" button.
If the unit does not go into "Initial settings" mode, unplug the unit
and try again.
2. Change "Save backlight" from "Normal" to "On".
3. To return to the home screen, press the "MENU" button or let it
sit for approximately 20 sec.
4. With the remote controller blank, hold the up button until the display blinks "99".
You are now in the maintenance writer (MW) mode and can scroll through the
MWs using the UP and DOWN buttons.
UP / DOWN Button
a) Use the UP or DOWN button to change the " Item " number or " Data " ON or OFF.
Press the " ENTER " button to select " Item " or " Data ".
Display
b) Turn MWs "2E" ON.
c) If your unit is WHiC56 or LWHiC56 turn MWs "1B " and "37" ON.
d) If your unit is WHiCX56 or LWHiCX56 turn MWs " 37 " ON.
e ) Turn MWs "FC" and "FE" ON and press the UP or DOWN button. (Display blinks with "A0".)
MW ON/OFF
f) After completing the setting, press the "ENTER" button to select "Item".
Configure the remaining MWs according to the chart below based on your unit's model and
gas type.
Setting list for MW settings and burner gas pressures (Check the rating plate for model and gas type)
5. Once complete, hold the UP and DOWN buttons together for five seconds until the remote
controller starts beeping rapidly.
This is the signal that the changes to the MWs have been saved and the unit is ready for use.
6. Check burner gas pressures with a digital manometer and adjust if necessary.
3. Wait 10 seconds and
reconnect power. Leave
the remote controller off.
Circuit board MW setting (
Model Gas type
A1 A5 A6
WHiCX56 2H
LWHiCX56
3P
2H
WHiC56
LWHiC56 3P
WHiX49 2H
LWHiX49 3P
2H
WHi49
LWHi49 3P
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:ON :OFF) Burner gas Pressure (mbar) Cover off
A7 A8 A9 AA AC C3 C7 C8 C9 Max value
6.9
8.4
7.0
8.7
6.4
10.0
6.7
7.8
Min value
3.2
3.7
3.2
3.7
3.1
4.3
3.1
3.6