Danfoss MK18 Data sheet
Datasheet
MK18 Range - Electronic Time Control Range
with Service Interval
Features
The MK18 range has all the exibility and reliability
of its predecessor but with a more elegant look
and some handy new features. The addition of a
real time clock means that setting the time and
manually adjusting for summer winter time changes
is a thing of the past.
All units in the MK18 range are set to operate
straight from the box with default settings, but the
inclusion of a full range of customisable user and
installer settings provide ultimate exibility when
setting up the unit.
The MK18 range consists of 3 products:
TS715 Si / TS715Si-CB Electronic Timeswitch - A
single channel unit, with voltage free switching
contacts. Ideal for combi-boiler installations and
anywhere you require low voltage switching.
CP715 Si Common Timebase Programmer - A
two channel programmer providing heating and
hot water outputs. Each output can operate
independently of the other, with common timing
for both channels.
FP715 Si Full Programmer - A two channel
programmer providing heating and hot water
outputs. Each output can operate independently of
the other, with separate timing for each channel.
All three models use an industry standard 6
pin backplate making the MK18 range an ideal
replacement for many existing products.
• 24 hours / 5-2 day / 7 day programming
• Factory Set Clock
• Automatic Summer/Winter Time Change
• Backlit Display
• Built in programmes
• Holiday function
• Industry standard wallplate
• Optional Service Interval Timer
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 ten seconds each hour commencing at
midday, this can be cancelled for the current day
by pressing any button.
Option Service Interval Timer Function
Setting 0 Disabled, (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
© Danfoss HS | 732v04 03/2017 | VDBRB412
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.
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Electronic Time Controls with Optional Service IntervalDatasheet
DHW
HTG
DHW
HTG
Specications
Features TS715 Si TS715 Si-CB CP715 Si FP715 Si
Code No. 087N789900 087N790700 087N789700 087N789800
Single channel timeswitch • •
Two channel programmer, with common timebase •
Two channel full programmer, with independent timebase •
Service interval timer available, select at time of installation • • • •
7 day, 24 hour or 5/2 day operation, select at installation • • • •
2 on/os or 3 on/os per day, select at installation • • • •
Pumped or gravity hot water option, select at installation • •
Permanent back lit display • • • •
Output channels single independent HW independent HW & CH
Programmes selectable On/O/Auto/Allday
Programmable holiday function Up to 99 days
Factory set real time clock •
Automatic BST/GMT change •
Service interval timer Programmable 56-365 days
Factory pre-set on/o time •
Advance override • • per channel
+1hour override • • per channel
Voltage rating 230 Vac ± 15%, 50/60 Hz
Contact Rating 3 (1) A
Switching action
Battery backup on power failure Time and all other settings - indenitely
Maximum ambient temperature 45°C
Enclosure Rating IP30
Dimensions (mm) 137 wide x 93 high x 29 deep
Please note: (1) Per channel on CP and FP models
1 x SPDT
(voltage free)
(commons linked internally)
(1)
2 x SPDT
Installer Settings and DIL
Switches
The MK18 programmer and timeswitch family
all use APM (Advanced Programming Menu)
functionality to provide easy customistation
of parameters allowing full exibility of
programming.
The units come from the factory set up for most
typical installations, but through an Installer APM
and separate user APM the units can be adapted
to suit almost any application requirement.
The DIL switches on the rear of the unit provide
simple and quick selection of 24 hour / 5-2 day
or full 7 day control as well as selecting gravity or
fully pumped system conguration (CP/FP715Si
only)
Sw.1
Sw.2
Sw.3
Sw.4
Not Used
Gravity
5/2 Day
7 Day
Not Used
Pumped
7 Day or 24 Hour
24 Hour
Wiring
ELECTRONICS
L 1 2 3 4
N
COM
TS715 Si
OFF
N/C
N/O
ON
ELECTRONICS
N
FUSED 3A
230V
1
L
DHW
COM
2
DHW
SI
TS715 Si-CB
4
HTG
COM
53
HTG
OFF
6
HTG
ON
ELECTRONICS
MAINS OFF
N/O
N/C
N
L1234
CP715 Si and FP715 Si
OFF
N/C
N/O
ON
ON
Danfoss Ltd.
Ampthill Road
Bedford MK42 9ER
Tel: 01234 364621
Fax: 01234 219705
Email: ukheating@danfoss.com
Website: www.heating.danfoss.co.uk
Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. Danfoss 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 subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
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© Danfoss HS | 732v04 02/2016 | VDBRB412
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