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3. Commissioning
WARNING
It is a requirement that only suitably qualified and competent personnel are allowed to undertake the
commissioning of the heater.
It is also strongly recommended that prior to commissioning the engineer familiarises himself with; the
information contained within the information pack that accompanies the heater, the heater itself, and with the
specific requirements of the installation /application.
WARNING
All unit heaters undergo a rigorous test programme prior to being despatched, whilst such a programme
does involve pre-commissioning and setting up the heater to operate efficiently and well within its designed
operational limits, this does not mean that on site commissioning is less important than might otherwise
be the case.
The idiosyncrasies of each installation can only ever be allowed for, through the use of thorough on site
commissioning carried out by trained and experienced personnel equipped with the correct tools and apparatus.
It is strongly recommended that equipment used for the sampling and analysis of flue gases is accurate to
/- 0.1% and maintained so that it is regularly calibrated.
3.1 Commissioning - Pretest
Check to ensure electrical safety, and inspect and check the oil installation, testing for leaks.
(a) Ensure that the electrical supply is turned off.
(b) Ensure that the oil supply is turned off.
(c) Check that all panels and fasteners are secure and in place.
(d) Check that the heater is installed so that it is square and that the support is adequate.
(e) Ensure that warm air delivery outlets are open and that ducting is adequately supported.
(f) Check that fan is free to rotate and the guards are in place.
(g) Ensure that the flue is secure, adequately supported, and that the various joints are properly sealed.
(h) Check that there is provision for flue gas sampling and that this sample point can be plugged and sealed after commissioning.
(i) Ensure that the burner is securely attached to the heater.
(j) Test for electrical earth continuity between the heater, oil pipe work, and mains supply.
(k) Turn on main electrical supply.
(l) Enable fan on via controller by selecting ‘Fan only’; ‘Vent only’; ‘Vent/Manual’.* (* dependent on control type supplied. Refer to individual
controller operating manual.)
(m) Check to ensure burner is off but power remains to the fan. The fan will start enabling fan direction etc to be verified. Reset Fan on/standby
switch to off.
(n) Set room thermostat and time clock to ‘demand’ positions.
(o) Turn mains electrical supply to off, replace and secure lower louvered panel covering fan and motor assembly.
Содержание OUH 100
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