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Check that the reheat coil valve is fully open when the control system signals a boost or optimum heating start operation.

Reconnect the controller and observe the reaction of the control loop to changes in set point. Maximising off-site pre-commissioning activities. T h e use of supplementary measuring devices may be appropriate. Check that the low inside air temperature signal is independent of both the low outside air temperature and low primary heating return water temperature signals and that it takes priority over these two signals.

CIBSE Commissioning Codes

For actuators commissionibg spring return motors check that the position assumed upon interruption of the power supply is correct.

Check that the damper assumes the specified position on plant shutdown. The particular requirements for the commissioning of the control system can be kept to the fore by the regular attendance of the control system commissioning engineer at projectlsite meetings.


Check that the damper has the correct mnemonic label. Personnel must receive adequate training in safety matters before working on site.

Refrigerating Systems: CIBSE Commissioning Code R – Terry Welch – Google Books

This is most likely to be achieved if the requirement is in the brief from the outset, and specialist commissioning advice sought early in the design process. Check that the correct labelling has been provided.

Check that failure of the gateway results in the specified contingency measures and appropriate alarm signal. In the case of the former, data relating to the alarm status and operational settings of a fire alarm system can be transferred to the building control system. Test commissioing have been drilled and sealed with removable plugs.

Test equipment Table C 3 3 Temperature A. In addition, due to overall project delays the commissioning of the control system is invariably rushed, also some items commssioning plant may not be properly commissioned by the start of occupancy.

Contact details General enquiries T: It is important that these measurements are taken at a sufficient distance from flow obstructions and changes in duct orientation, in order to avoid turbulent flow conditions that will adversely affect the readings. Exceptions to this include applications such as cleanrooms which require the derivative action to help stabilise rapidly fluctuating air pressures.

CIBSE Commissioning Code W: Water distribution systems (CCW)

Confirm that over cooling is avoided. The following definitions are applicable. CIBSE Commissioning Codes set out clearly and systematically the steps required to commission buildings and building services in a proper and timely manner.


The control equipment for any main andor critical items of plant should be witnessed completely along with a random sample of cbise points.

CIBSE Commissioning Codes

Pre-commissioning Specified systematic checking of a completed installation to confirm its state of readiness for commissioning.

Note that the provision of a comfortable working codr is a legal obligation.

Tuning of control loops CA2. Spare fuses and fuse ways if specified. Checklists are essential for monitoring the progress of the commissioning.

Provision of suitable gland plates. The sensor should be replaced where the required offset is greater than the specified maximum level. Mark and record the location of concealed sensors e. Check that the humidifier control signal is limited by a high-limit supply air humidity set point.

This work should commence at the start of the contract and be added tohpdated as the contract progresses. Start with a wide proportional band, i. Verification of handover clde all operating manuals