Data Sheet Electronic Time Controls FP975 7-day

Data Sheet
Electronic Time Controls
FP975 7-day Programmer
TS975 7-day Timeswitch
Application
The Danfoss Randall FP975 7-day full programmer
and TS975 7-day time switch offer all the control
flexibility and user features of their counterparts in the
regular Mk18 range (FP75 and TS75), but with two
important differences.
● British Gas Standard wallplate provides interchangeability with other popular time controls
● Total Control Flexibility
● Extra Simple Programming
● Stylish and Compact Design
● Simple Change to Weekday/Weekend Control
● Simple GMT/BST Time Change
● Day Programme Copy Facility
● AM/PM or 24 Hour Clock Display
● Up to 3 Ons/Offs each Day
● Built-in, Ready-to-Use Programmes
● Battery Back-up
1) These units are intended specifically to replace, or
upgrade systems with, Danfoss Randall Mk.9 time
controls. They have British Gas Standard wallplates
used by many other models, including the Danfoss
Randall SET range, the Horstmann 425 Diadem and
Tiara, and their 525 and 527 models.
2) Both models have voltage-free output contacts,
making them applicable to systems with low voltage
control circuits, e.g. combination boilers or warm air.
Units are supplied with SET wallplates but, simply by
re-positioning a small switch in the back, interchangeability is achieved with Mk.9 controls.
Replace models
922 & 972
911 & 971
With
FP975
TS975
Both the FP975 and the TS975 are supplied as full 7day controls, but the installer can easily and quickly
convert them to weekday/weekend units if preferred.
Systems
MAINS
SPARE
E
N
OFF COM ON
ON COM OFF
L
1
2
MAINS
OUTPUT
911 OR 971
SET1 OR SET4
3
4
5
DHW
922 OR 972
SET5
6
E
N
L
MAINS
HTG
OFF COM ON
OFF COM
ON COM OFF
ON COM OFF
1
2
3
4
5
ON
6
DHW
922 OR 972
SET5
E
N
L
E
N
L
2 2
EARTHS NOT
SHOWN.
ENSURE EARTH
CONTINUITY
THROUGHOUT
ON
DHW DHW
ON OFF
CYL.
'STAT
ROOM
'STAT
N
BOILER TERMINALS
CYL.
'STAT
ROOM
'STAT
N
DHW DHW
ON COM
N
PUMP
N
3 PORT MIDPOS'N VALVE
4
5
6
HTG HTG
ON COM
N
PUMP
N
L OUTPUT INPUT
ON COM OFF
3
FP975 - Heatplan (2x2-port valves) system
HTG
ON
N
BOILER
E
ON COM OFF
2
ON
LINKS
FP975 - Heatshare (Mid-pos. valve) system
COM
OFF COM
1
LINKS
TS975 - typical combination boiler wiring
HTG
OFF COM ON
N
ROOM
'STAT
N
N
EARTHS NOT SHOWN.
ENSURE EARTH
CONTINUITY
THROUGHOUT
SPRING RETURN
VALVE IN DHW
SPRING RETURN
VALVE IN HTG.
TS975 & FP975 will
plug on to the
wallplates of both
Danfoss Randall Mk.9
and SET time controls.
When used on an
existing correctly wired
MK.9 wallplate, no
wiring changes need to
be made but the small
switch on the back of
the new unit should be
re-positioned as shown
overleaf.
For SET replacement,
no such adjustment is
necessary.
BOILER
1
Datasheet
FP975 and TS975 Time Controls
Specifications
T imesw itch
F u ll P ro g rammer
7-day OR W'kday/W'kend
F eatu res
T S 975
F P 975
Water/Heating linkable for basic systems
Output Channels
Single
Independent HW & CH
On
Off
Auto
Allday
On
Off
Auto
Allday
(per channel)
Weekday
6:30am ON
8:30am OFF
12:00noon ON
12:00noon OFF
5:00pm ON
10:30pm OFF
Sat/Sun
7:00am ON
10:00am OFF
12:00noon ON
12:00noon OFF
5:00pm ON
10:30pm OFF
l
Programmes selectable
Factory pre-set
On/Off times
All changeable
Ons & Offs per day
Up to 3
Advance over-ride
l
per channel
+ 1 hour over-ride
l
per channel
Voltage rating
220/240Vac 50Hz
Contact rating
3(1)A
SPDT
Voltage-free
Switching action
2 x SPDT
Voltage-free
Max. ambient temp.
Wallplate and
conversion
45°C
Memory back-up
Lithium - minimum of 24 hours
Dimensions
150 wide x 99 high x 42 deep
ALLOW SCREWDRIVER ACCESS
ABOVE UNIT
Outline
of unit
Wall or
Plaster
Box fitting
SETTING OPERATING MODE
Four small switches on the rear of the case
are used to set the operating mode.
FP & TS975 time controls are
supplied ex-factory as 7-day units.
7 DAY
5/2 DAY
L
SET
ELECTRONICS
N/C
N/O
MAINS
FP975
Programmer
FP975 Programmer
ELECTRONICS
E N
GRAVITY
NB.Operating mode switch at
factory setting, ie. for new
installation or for direct
replacement of SET range.
TS975 Time switch
MK.9
Internal Wiring
TS975
Time switch
PUMPED
ALLOW 20MM CLEARANCE BELOW UNIT
5/2 DAY
Surface fixed
cable bottom
entry
knockouts
7 DAY
Rear entry
cable access
SET
Terminal
block
43mm
TOP
MK.9
Simply by re-positioning small
switches as shown, they can
become weekday/weekend
controls.The same switch
determines whether or not the
FP975 is HW/CH linked for use
with basic gravity heating systems.
TOP
1
2
3
SPARE
4
5
6
ON C OFF
OUTPUT
N/O
E N
MAINS
L
1
ON
N/C
2
3
N/O
4
5
N/C
6
C OFF ON C OFF
DHW
HTG
Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material, and reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
Danfoss Randall Limited,
Ampthill Road,
Bedford, MK42 9ER
Tel: 01234 364621 Fax: 01234 219705
Email: danfossrandall@danfoss.com
Website: www.danfoss-randall.co.uk
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Part No. 208 Issue 5 02/03