Specifications

Underfloor Heating System Customer
Project No.
Issue 2 - Jan 2005
Date
Final Commissioning
Procedure
With reference to British Standard EN 1264 and CIBSE
Recommendations
Project
Address
NO
a) Is the boiler thermostat set correctly.
b) If fitted ,does the Zone Valve Operate
Final commissioning is required to ensure that the system will meet the design specification and meet the requirements of the
Building regulations. This procedure should only be carried out by a competent person and only after the system has been
running for a period in order to allow the floors to dry out and settle. The pre-commisoning and start-up procedure should
have been carried out before final commissioning. All building work should be complete and all window, doors etc should
be closed and all boiler, electrical and plumbing safety checks should have been completed by a competent person before
commencing commissioning. If floor coverings have been laid then these should be checked against the design specification
as there are occasions when coverings with high thermal resistance can result in design temperatures being unobtainable.
Check All rooms stats are initially set to 20°C
YES
Start the system and Confirm Time Clock(s) / Programmer(s) are calling for
Heat.
Check that circuit actuators are opening. This can be done by visually
checking to see if a red marker is visible and if a flow can be seen on the
flow gauge.
1
c) Does the boiler fire & system pump operate
d) Is supply hw available at the manifold
e) Does the UFH Pump begin to operate
Check all floor thermostats, (if installed are set to 25°C to 30°C initially)
5
7
6
NOYES
YES NO
NO
YES NO
YES NO
YES
System Checks - ( To be completed for each manifold )
3
4
YES NO
2
NO
Turn on each room stat to its maximum setting
and check that when any room stat calls actions
a) to d) occur:- If answer is no to any of these
questions, then the electrician should check for
electrical wiring for faults using the fault finding
guide supplied with the electrical info pack.
YES
YES NO
Visually inspect the installation including floor, components and manifold assembly and
check that the primary boiler flow and returns are correctly connected. Make a note on this
form of any items which need further investigation or remedial action. Check with the
responsible person that the Boiler is installed and working and that the system has been
made safe to inspect. If there is any doubt about the safety of the system, the wiring or any
other part of the installation do not proceed with commissioning and report your findings to
the appropriate person/authority. Remember all electrical work must be carried out in
accordance with the Building regulations and IEE regulations.
YES NO
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