Installation Tips...
The CalCombi can be installed on the incoming water supply but also on the cold water down service after the tank due to the fact that the pressure drop through the unit is minimal - this is not the case with most other products. CHECK BEFORE YOU INSTALL.
1. Drain relevant pipework or system, where CalCombi unit is to be installed.
2. Allow time for central heating system to cool down (if applicable).
3. Remove section of pipe to suit 15mm or 22mm unit.
4. Push unit into place, with strong push/pull action ensuring fully into position.
5. Open system (slowly) and check for any leaks.

Points to consider...
a. Limited free play in pipework.
b. Cut only one measurement, then re-measure, also taking into account approximately 25mm each end to push pipework fully into position in push fit housings.
c. Earth bonding wire, must be fitted.
d. Collet clip provided to ensure movement between fittings is minimal.