Lochinvar TTW Series Installation, Commissioning And Maintenance Instructions page 53

By pressing (◄ ►) one can
toggle though the available
menus.
"TIME/DATE/DAY" menu
In this menu one can set the time and the date.
"SETPOINT" menu
In this menu one can change temperature
settings without the need for a password.
- Hot water set point
Calorifier or Water heater (depends on heater
type)
- Hot water reduced
The amount of degrees diff. relative to "Hot
water set point" during night reduction.
- Local set point water heater
The temperature of the hot water supply from
the DHW appliance
to the tank is set here.
"PROGRAM" menu
In this menu one can set the DHW and Anti
Legionella program.
"OPERATING HISTORY" menu
Shows burning hours DHW, etc.
parameter menu
Enter PW Level 1:
three second message
confirming access:
LEVEL 1
HOW TO CONFIRM CHANGES
When changes have been made in one of the nine menus below, the user presses
ENTER to confirm these changes.
To prevent anyone from making changes by mistake, the following happens when
changes are made:
Step 1: The user presses [ENTER] to confirm the change made
or [MENU] to exit the menu without changes. HINT: First programme all changes
planned, then only after that, press [ENTER]
Step 2: The display asks the user to be sure to make these changes. The user can
cancel or confirm by using the left and right arrows.
CANCEL = ◄
Enter PW Level 2:
three second message
confirming access:
LEVEL 2
CONFIRM = ►
"FAULT HISTORY" menu
press: ▼ Reading last fifteen faults (only
reading!).
"MAINTENANCE" menu
By pressing (◄ ► ) one can set the following
options:
- Maintenance reset
- Maintenance Mode
- All
- Date
- Ignition cycles
- Burning hours
- Mainten Off
"USER LOCK" menu
In this menu one can lock the menu for users
0= UNLOCKED
1= LOCKED
When un-locked the user can enter the
"MENU" by pressing the menu
button and all submenus will show.
When locked the user has to push the : MENU
and simultaneously
press ▼ for 6 seconds to get access to all
submenus.
This is to prevent accidental changes!
NOTE: The parameters sub menu can always
be accessed.
"PARAMETER" menu
In this menu one can change parameters. The
possible access
depends on the password that is used.
Enter password
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