Our Wiring & Controls app will help you master two and three-port controls by helping you to understand how they work and how to wire them up correctly. You'll also learn how to fully test the system and some fault finding techniques, giving you the confidence you need when you're at a customer's house.

The app contains 19 chapters with 73 minutes of all new content:
1. Introduction to Systems
2. System Overview - Two-Port
3. System Overview - Three-Port
4. Tools & Testing Equipment
5. Programmers
6. Room Stats
7. Cylinder Stats
8. Two-Port Valves
9. Three-Port Valves
10. Wiring Centres
11. Sequence of Wiring - Two-Port
12. Sequence of Wiring - Three-Port
13. Wireless Controls
14. System Testing - Two-Port
15. System Testing - Three-Port
16. Fault Finding - Two-Port
17. Fault Finding - Three-Port
18. Frost Protection
19. Automatic Bypass Valves

If you want to improve your skills installing or fault finding on Danfoss & Honeywell heating controls, this is the app for you!

What’s New

Version 1.2

We've made some small changes under the cover.


Mr Combi Sales Ltd.
36.9 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch. Apple TV.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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