About the MK18 Range
The Danfoss MK18 Range offers a comprehensive selection of time controls designed for domestic heating and hot water functions, providing unrivalled flexibility and control for any situation. With over 75 years of innovation, Danfoss has established itself as a trusted name, delivering the best in modern controls technology.
Since its founding in 1933, Danfoss has been dedicated to continuous innovation. The MK18 range embodies this commitment, offering flexibility and reliability with an elegant design. All models feature a slim, modern enclosure and a large LCD with a convenient backlight, enhancing user experience.
Employing the latest technology, these versatile heating time controls are reliable and easy to use. They are recognized by installers as a preferred choice due to their ready interchangeability with most other existing controls on the market.
A key convenience feature is the automatic real-time and date setting, performed at the factory. The correct time is displayed automatically when powered up. This time and date information is used to automatically adjust for summer and winter time changes each year, eliminating the need for user intervention and significantly reducing service call-backs.
Additionally, all products incorporate an optional installer-set service interval timer. This feature is particularly useful in tenanted properties where landlords are responsible for gas safety. It allows the service due date to be set, and the unit will remind the user 28 days before the due date, ensuring timely maintenance.
Each model can be configured by the installer during setup to offer 7-day, 24-hour, or 5-day/2-day operation. Furthermore, all models can be set to provide either two or three ON/OFF periods per day.
Key Features
- ✔️ Service interval function
- ✔️ 7 day, 5/2 day, or 24 hour programming options
- ✔️ Permanent back lit display
- ✔️ AM/PM or 24 hour display format
- ✔️ Built-in programmes for ease of use
- ✔️ Automatic BST/GMT time change
- ✔️ Convenient user overrides
- ✔️ Holiday function
- ✔️ 'Industry standard' wallplate for easy installation
- ✔️ Factory set clock for immediate use
Models and Specifications
Overview of Models
The MK18 range includes three primary models: TS715Si, CP715Si, and FP715Si. These units are depicted as slim, modern devices featuring a prominent LCD screen displaying the time (e.g., 13:50) and day of the week (e.g., MO for Monday).
Features Comparison Table
| Feature | TS715 Si | CP715 Si | FP715 Si |
|---|---|---|---|
| Code No. | 087N789900 | 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/offs or 3 on/offs per day, select at installation | ✔️ | ✔️ | ✔️ |
| Pumped or gravity hot water option, select at installation | ✔️ | ✔️ | ✔️ |
| Permanent back lit display | ✔️ | ✔️ | ✔️ |
| Output channels | single | independent HW & CH | independent HW & CH |
| Programmes selectable | On/Off/Auto/Allday(1) | On/Off/Auto/Allday(1) | On/Off/Auto/Allday(1) |
| Programmable holiday function | Up to 99 days | Up to 99 days | Up to 99 days |
| Factory set real time clock | ✔️ | ✔️ | ✔️ |
| Automatic BST/GMT change | ✔️ | ✔️ | ✔️ |
| Service interval timer | Programmable between 2 and 12 months | Programmable between 2 and 12 months | Programmable between 2 and 12 months |
| Factory pre-set on/off time | ✔️ | ✔️ | ✔️ |
| Advance override | per channel | per channel | per channel |
| +1 hour override | per channel | per channel | per channel |
| Voltage rating | 230 Vac ± 15%, 50/60 Hz | ||
| Contact Rating | 3 (1) A | ||
| Switching action | 1 x SPDT (voltage free) | 2 x SPDT (commons linked internally) | 2 x SPDT (commons linked internally) |
| Battery backup on power failure | Time and all other settings - indefinitely | ||
| Maximum ambient temperature | 45°C | ||
| Dimensions (mm) | 137 wide x 93 high x 29 deep | ||
Please note: (1) Per channel on CP and FP models.
Wiring Details
CP715 Si and FP715 Si Wiring
The wiring diagram for the CP715 Si and FP715 Si models illustrates the connection points for the ELECTRONICS module. The MAINS input terminals are labeled N (Neutral) and L (Live). The output terminals are numbered 1, 2, 3, and 4. The diagram indicates connections for normally closed (N/C) and normally open (N/O) terminals, with specific labels for DHW (Domestic Hot Water) and HTG (Heating) functions. The MAINS input section shows OFF/OFF and ON/ON positions corresponding to DHW/HTG.
TS715 Si Wiring
The wiring diagram for the TS715 Si model also shows an ELECTRONICS module. It connects to MAINS input terminals N (Neutral) and L (Live), and output terminals numbered 1, 2, 3, and 4. Connections for N/C and N/O terminals are indicated, along with a COM (Common) terminal. The MAINS input section features OFF and ON positions, and a switch labeled 'COM OFF ON' is present.
Contact Information
Danfoss Randall Ltd is located at Ampthill Road, Bedford, MK42 9ER.
Telephone: 0845 1217 400
Fax: 0845 1217 515
Website: www.danfoss-randall.co.uk
Part Number: 334v07 01/11
