Danfoss FP735Si Electronic 3 Channel Full Programmer for Heating and Hot Water

Installation Guide

Please Note:
This product should only be installed by a qualified electrician or competent heating installer and should be in accordance with the current edition of the IEEE wiring regulations.

System Overview

Installation

1. First remove the wallplate from the back of the unit.
2. From the top left hand corner of the wallplate, there must be clearances of at least 21mm to the right, 21mm to the left, 36mm above and 106mm below in order to mount the plug-in module.
3. Wiring
   Note: A typical system wiring example is shown on page 18
4. Mount the unit on the wallplate
5. With the unit powered up, it is recommended to press and release the RESET button to start up the FP735Si unit.

Programming Options

FP735Si is delivered with a set of parameters that have been pre-programmed to cover the most typical type of installations. See (5.0). If a different parameter setup is wanted the unit provides two programming options:

Normal programming
Normal Programming is meant for setting the timing profile that controls the ON and OFF periods for the room heating and for the hot water. A daily profile may be programmed and a profile can control the entire week where the weekend may be handled separately. Also a timing profile for a holiday can be entered.

As part of the normal daily operations, a simple one-button press (+HRS) can extend a running ON period for room heating and/or hot water by one hour. This can be repeated 3 times giving up to 3 hours extension.

By pressing ADV (advance), the user can jump to the next event in the daily timing profile. If for instance, the user wants to bring on the room heating immediately whereas the profile has been programmed to bring it on in two hours, the user can simply press ADV and the heat will be turned on.

See the User Guide for normal programming instructions.

Advanced P rogramming
Advanced Programming is meant for changing certain parameters that are usually only set once. Advanced Programming can typically be made by the installer as part of the system installation and setup.

Pre-programmed Parameters

FP735Si is delivered with a set of pre-programmed parameters.

Advanced Programming
The following pre-programmed parameters can be changed in the Advanced Programming:

Note: for the UK market, the FP735Si comes with a default 12 hours clock (AM/PM) setup.

Normal Programming
The following pre-programmed parameters can be changed in the Normal Programming. See User Guide.

Pre-programmed ON and OFF periods for 6 events per day: Weekdays (Monday-Friday):

Weekends (Saturday-Sunday): 

Pre-programmed ON and OFF periods for 4 events per day Weekdays (Monday-Friday):

Weekends (Saturday- Sunday):

Display Information

KEY TO SYMBOLS

Advanced Programming

To access the Advanced Programming follow the steps below:

• Press and hold PROG and V for 5 seconds.
  The display will change to look like this.
• Press the + and – keys to scroll backwards and forwards between parameters.
  Press the V and A keys to change the parameter setting.
  The flashing digits in the center of the display indicate the number of the selected option. The large characters in the top or bottom of the display indicate the option value selected.
• Press and hold PROG until the display returns to RUN mode.

In the Advanced Programming mode, the following parameters can be changed:

Parameter1 – Enable/Disable A+B Days
This allows the unit to operate in A+B days. A and B days can be grouped arbitrarily: 5+2, 4+3, etc. The days do not have to run in sequence. Press + until parameter 1 is displayed. Press V or Λ to select the required setting. Note: A+B setting is only possible if operating mode 5+2 has been set in Advanced Programming. WARNING: Changing this parameter will reset event times to default values.
0 = disabled (default)
1 = enabled

Parameter 2 – Copy functions
This parameter sets the unit to operate with the Standard Copy function or the Advanced Copy function. Press + until parameter 2 is displayed. Press V or Λ to select the required setting. Note: Advanced Copy setting is only possible if operating mode 7 day has been set in Advanced Programming.
0 = Standard Copy (default)
1 = Advanced Copy

Parameter 3 – Summer/winter
The Summer/winter parameter makes it possible to let the unit change between summer and winter period automatically or manually. The parameter can also disable the change between summer and winter. Press + until parameter 3 is displayed. Press V or Λ to select the required setting.
0 = disable summer/winter change
1 = enable manual summer/winter change
2 = enable automatic summer/winter change (default)

Parameter 4 – Backlight
The backlight parameter allows the backlight to be always on, always off, or on for 15 seconds after the last key press. Press + until parameter 4 is displayed. Press V or Λ to select the required setting.
0 = backlight always off
1 = backlight on for 15 seconds after the last key press (default)
2 = backlight always on

Parameter 5 – Number of events per day
This parameter sets the unit to operate with 4 or 6 events per day. An event being an ON or an OFF period of room heating and/or hot water heating. Press + until parameter 5 is displayed. Press V or Λ to select the required setting. WARNING: Changing this parameter will reset event times to default values.
2 = 2 ON/OFF periods per day
3 = 3 ON/OFF periods per day (default)

Parameter 6 – Operating Mode (7 Day, 5+2 Day or 24 Hour)
This parameter sets the unit to operate using either 7 day, 5+2 day or 24 hour mode. Press + until Option 6 is displayed. Press V or Λ to select the required setting. WARNING: Changing this parameter will reset event times to default values.
24 = 24 hour
5-2 = 5+2 Day (or A+B if set in parameter 1)
7 = 7 day (default)

Parameter 7 – Keyboard Lock
This parameter sets the unit to operate with an enabled (functioning) or a disabled (locked) keyboard. Press + until parameter 7 is displayed Press V or Λ to select the required setting.
0 = the keyboard is enabled (default)
1 = the keyboard is disabled (locked)

Service Interval Timer
The FP735Si is equipped with an installer setback service interval timer. If this feature is required please contact our technical department. Setting instructions for this gas safety feature are only available to bona fi de heating installers.

Copy Functions

FP735Si provides 3 copy functions: Standard Copy, Advanced Copy and Channel Copy. Standard Copy is the default setting.
If the Advanced Copy function is wanted, it must be changed in Advanced Programming mode (page 13). Channel Copy is always available.

Standard Copy
Pressing COPY/i will copy the previous day’s events into the displayed day. The unit will then display the 1st event for the new day.
The Standard Copy function is only present if the unit is set to run in 7 day mode, or 5+2 day mode.

To perform a standard copy operation: 

a) Press CH to select the channel.
b) Press PROG to go to event programming.
c) Press DAY/HOL to select the day to copy to.
d) Press COPY/i to copy the previous day’s events to the displayed day.

Advanced Copy
The Advanced Copy function is available in 7 day mode only. This allows any day to be copied to any other day, or days.
To use the Advanced Copy function, go into the event programming using the PROG button, then:

1. Press DAY/HOL to select the day to be copied from.
2. Press COPY/i to copy from the selected day.
   When selected, the day will begin to flash.
3. Press DAY/HOL to select the day to be copied to.
4. Press COPY/i to copy to the selected day.
5. Repeat steps 3 and 4 to select and copy other days.
6. To stop copying, use the DAY/HOL button to go back to the flashing day and press the COPY/i button. The previously flashing day will stop fl ashing to indicate it has been de-selected.

NOTE: When a day has been copied to, it will remain visible and not flashing when the DAY/HOL button is used to select other days.

Channel Copy
Channel Copy is used to copy events from one channel to another channel.
To perform a Channel Copy operation:

a) Press CH to select the channel to copy to.
b) Press COPY/i to copy from the previous channel.

The Information Key

When running in normal operation, the Information key COPY/i will provide the following information:

1st COPY/i key press: the model number is displayed.
2nd COPY/i key press: the software version is displayed.
3rd COPY/i key press: the next event time is displayed.
4th COPY/i key press: the Service Due end date is displayed (if set).

In holiday mode, the information key will provide the holiday end date only.
Note: the fi rst COPY/i key press will only turn on the backlight if no keys have been pressed for 2 minutes.

How to Reset The Unit

FP735Si has three levels of reset:
Reset
Full Reset

Reset
Reset restores operation in the unlikely event that the unit has become unresponsive.
Press and release the RESET button.

This does not reset any programmes or the time or date, but will cancel any manual overrides that have been selected.

Full Reset

1) Go to Advanced Programming: press and hold PROG and V for 5 seconds.
2) Press and hold PROG and press/release R/S.

At a Full Reset:

• Event times are reset to their default values (section 5.2).
• Next event overrides are cancelled.
• +HRS overrides are cancelled.
• Pre-programmed Parameters (see 5.1) are reset to default values.
• Time and date are not changed.

System Wiring E xample

For wiring connections please refer to the diagram below:

The above wiring diagram refers to a 3 Zone system using 3×2 port valves to control flow to each heating zone and the hot water. For systems using 3 port valves or a combination of 2 and 3 port valves please consult your local Danfoss contact.
* Refer to boiler wiring information for boilers with pump overrun

Danfoss Ltd.
Ampthill Road
Bedford MK42 9ER
Tel: 0845 1217 400
Fax: 0845 1217 515

Email: ukheating@danfoss.com
Website: www.heating.danfoss.co.uk
Part No. 013R9577/VIHVC302 – 03/2014

Documents / Resources

Danfoss FP735Si Electronic 3 Channel Full Programmer for Heating and Hot Water [pdf] Installation Guide FP735Si Electronic 3 Channel Full Programmer for Heating and Hot Water, FP735Si, Electronic 3 Channel Full Programmer for Heating and Hot Water, Full Programmer for Heating and Hot Water, for Heating and Hot Water, and Hot Water, Hot Water

References

• User Manual