Napoleon NPFX24A, Owner'S Manual

Page: 36 / 44

Air Handlers
5 Installation Check and Trial Run
5.1 Checking Items after Installation
Items to be checked
Problems might happen due to
improper installation
Check
Check if each parts of the unit have
been installed reliably. The unit might fall off, vibrate or emit
noise.
Check if the unit has passed
through leakage test. It may cause deficiency of cooling
(heating) capacity.
Check if the unit has been insulated
properly. It may cause condensation and
water drop.
Check if the water can be drained
fluently. It may cause condensation and
water drop.
Check if the power voltage accords
with that on the nameplate. Malfunction might happen and parts
might be burned.
Check if the wiring and pipe line has
been installed correctly. Malfunction might happen and parts
might be burned.
Check if the unit has been earthed
soundly.
Hazard of electricity leakage.
Check if the wiring conforms to the
wire gage. Malfunction might happen and parts
might be burned.
Check if there is obstruction
blocking the air inlet/outlet. It may cause deficiency of cooling
(heating) capacity.
Check if the piping length and
refrigeration charging volume has
been recorded.
Uncertain about the refrigerant
charging volume.
Check if the piping connection and
valves have been set properly. It may cause unit abnormality and
damage the unit.
Make sure there is no crack among
air return and supply pipe. It may cause air leak, vibration and
noise.
Check if the panel is mounted firmly.
It may cause air leak, vibration and
condensation.
5.2 Trial Run
5.2.1 Preparative for Trial Run
(1) Never power on the unit until all the installation work has been done.
(2) All the control circuit and wiring has been connected correctly and soundly. Valves
on the gas and liquid line should be completely open.
(3) All the scattered objects should be removed, especially metal filing, thrum and
clip.
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