FP735Si
Electronic 3-channel Programmer
for Heating and Hot Water with Service Interval Timer
Features
• 24 Hours / 5-2 Day / 7 Day Programming
• Factory Set Clock
• Automatic Summer/Winter Time Change
• Backlit Display
• Holiday Function
• Industry Standard Wallplate
• Optional Service Interval Timer
FP735Si Programmer is a three channel programmer
providing outputs for controlling ON and OFF periods
for room heating and hot water. Each output channel
can operate independently of the others, having its
own separate timing.
FP735Si is fully Part L compliant, and provides a single
unit solution to ful ll the requirements for controlling a
Hot Water zone together with two Room Heating zones.
FP735Si o ers up to six “ON-to-OFF” or “OFF-to- ON”
changes each day. Independently set for each zone.
Programming Modes
Several programming modes are available for selecting
“ON” and “OFF” periods that completely suit the
domestic needs. 7 day mode allows each day to be
programmed individually. 5 day/2 day mode allows
di erent “ON” and “OFF” periods to be set for the
weekend.
Holiday
The FP735Si allows the user to switch o the Hot Water
and the Heating for a programmed holiday period.
When the end of holiday date has been reached, the
Hot Water and Room Heating will return to normal
operation settings.
Info
An information key allows quick viewing of product
model number, software revision number, holiday end
date, and service due date.
Move to Next Event
By a single key press, the user can force the
programmer to immediately move to the next “ON-
to-OFF” or “OFF-to-ON” event. Again, this is made
independently for the individual Room Heating or the
Hot Water zone.
+ Hour Override
FP735Si provides the user the ability to override
the running program. By pressing a key the user
can extend a current “ON” time by 1, 2, or 3 hours.
Or switch on the selected channel, when an “OFF”
period is active.
Service Interval Timer
The service interval timer allows the installer to select
a service due date for the boiler, this can be set at
between 28 days and 366 days from the current date.
Service due date is within 28 days
From 28 days prior to the service due date, a visual
warning will appear in the display and a buzzer will
sound for 30 seconds each hour commencing at
midday. This can be cancelled for the current day by
pressing any button.
Service due date is reached or passed
When the service due date is reached the visual and
audible warning are repeated each hour of the day
commencing at midday, but the duration of the alarm
is increased to 60 seconds, this can be cancelled for the
current day by pressing any button.
All override and programming buttons are disabled and
depending upon service interval timer setting, heating
can be restricted to 15, 30 or 45 minutes in each
programmed hour.
Part No. 107v01 11/13
1
Datasheet
Option Service Interval Timer Function
Setting 0 Disable (factory default)
Setting 1 Active, visual and audible warning,
no heat reduction
Setting 2 Active, visual and audible warning,
heat reduced to 45 minutes per hour
Setting 3 Active, visual and audible warning,
heat reduced to 30 minutes per hour
Setting 4 Active, visual and audible warning,
heat reduced to 15 minutes per hour
Setting 5 Active, visual and audible warning,
heat reduced to 0 minutes per hour
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