Set Service - Honeywell Y9520Z Sundial RF2 Pack 5 Installation Instructions Manual

4.5 OpenTherm® Setup and Information Display (cont.)
To Enter Set OpenTherm Mode:
a. Enter Installer Modes (as described on page
9) and navigate to SET OPENTHERM mode. In
response to the query 'SET OPENTHERM OK ?',
press the button to enter SET OPENTHERM.
b. The first OpenTherm parameter 'Ot' is now
available to adjust. This allows you to enable
or disable OpenTherm communications. The
parameter ID is shown on the display separated by
a colon from the parameter value. If this parameter
is set=0, OpenTherm will not function and no other
OpenTherm parameters will be accessible.
c. You can change the parameter value by pressing
the or buttons. At this point the description
in the LoT™ Display will change and the parameter
value will flash. If you press
flashing and be saved for use.
d. Press to move to the next parameter. If the
parameter is a Display parameter it does not have
an ID code. It cannot be adjusted but will simply
display the information supplied by the boiler.
e. Keep pressing to step around the list of available
parameters, and use or
the parameter value, where allowed.
f. Any parameter changes that have been confirmed
with the button will be saved and used.
To Exit Set OpenTherm Mode:
You can exit Set OpenTherm Mode at any time by moving the slider to the next position and then back again to RUN.

4.6 Set Service

Set Service parameters are listed in the table below, along with a description of the options that are possible. Most are only displayed if Service is
enabled i.e. parameter AL is set = 1.
'SET SERVICE' Parameter
PARAMETER
Enable or disable service
alarm feature
Number of days till next
Service
Number of days for
advance warning
Action taken at time-out
Number of EXTRA HOUR
button presses allowed in
'Prompt' mode
Enable telephone call
number display
Enter contact telephone
STD code
Enter contact telephone
number
* Reset 'SET SERVICE'
parameters to default values
* This parameter by default has a value of 1, unless any other parameter is adjusted, when it will change to 0. Set it to 1 to reset all parameters
back to defaults
the value will stop
buttons to change
LoT™ Display Default
ID Description Value
AL SERV MODE 0
d SERV DAYS 364
Ad DAYS NOTICE 28
to ACTION TYPE 2
bP 1HR BOOSTS uL
tC SHOW 0
PHONE
St STD CODE -------
nu NUMBER ---------
rS ALRM RESET 1
Only if OpenTherm is
enabled (Ot=1) will it be
possible to access the
other parameters
Range of Description [LoT™ Display Description]
Values
0, 1 0 = disabled
1 = enabled
001 to 001....400
400 000 = service is overdue
0 to 28 0 ...28
0, 1, 2 0 = no action,
1 = switch off,
2 = 'prompt' mode
uL, uL = unlimited number,
1 to 99 1...99 = specified number of button
presses, after which unit switches off
0, 1 0 = disabled
1 = enabled
1 When a or button is first pressed the LoT™ Display
shows a row of dashes which can be adjusted using
buttons, then verified using the
1 When a or button is first pressed the LoT™ Display
shows a row of dashes which can be adjusted using
buttons, then verified using the
0,1 0 = do not reset
1 = default parameters
12
[DISABLED]
[ENABLED]
[SET DAY COUNT]
[SET DAYS NOTICE]
[NO ACTION]
[SWITCH OFF]
[PROMPT MODE]
[NUM BOOSTS]
[DISABLED]
[ENABLED]
or
button.
or
button.
[NO RESET]
[RESET]