IOM-PreciseAIR
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2.10.
Series PCA - Split System Field Refrigerant Piping
Refrigerant Piping
AIR does not assume responsibility for the line size selection. The ultimate responsibility for the
refrigerant piping sizing is for the installing contractor or Customer’s engineer.
Field discharge, liquid or suction lines will not necessarily be the same as the field pipe size
required. In some cases, these will vary significantly.
Special care must be taken to ensure proper oil return and efficient operation. Lines must be
designed and installed by a qualified refrigeration engineer and mechanic.
Refer to technical bulletin TB-14 for more instructions.
2.11.
Condensate Drain Piping
All cooling coil drain pans have a connection for condensate removal.
A P-trap should be built into the drain line to prevent air from backing up into the unit. Refer to
technical bulletin TB-15.
2.12.
Electrical Drawings and Connections
All electrical connections must be performed by a qualified electrical technician and must follow
all local electrical and safety regulations. Failure to do so may cause death, serious personal injury
or property damage and will void the warranty of the equipment. AIR is not responsible for any
damage caused by not following the instructions present in this document.
The Customer’s electrical installer will make holes in the enclo
sure to attach electrical fittings and
pass wires and cables. Make sure to protect the components (with tape or cardboard, for
example) to ensure that no debris or metal shavings fall through any component opening.
After drilling holes, make sure that the panel is clean and no metal shavings or other materials are
left inside it. If the panel is not cleaned up, those pieces can cause a catastrophic failure and the
warranty will be voided.
All electrical connections are depicted in the
unit’s electrical s
ubmittal. The electrical submittal
includes the following drawings:
EF (Electrical Field)
Shows the power connection, the field devices (sensors) installed by the end user, and the
equipment nameplate. The equipment nameplate contains the minimum circuit ampacity data
which is used to size the conductors feeding power to the equipment and the maximum
overcurrent protection data which is used to select the protective device size (breaker of fuses).
Содержание PreciseAIR PCA Series
Страница 15: ...IOM PreciseAIR Page 15 of 50 2 13 Main Control Panel Layout and Components Figure 4 Main Control Panel Layout...
Страница 27: ...IOM PreciseAIR Page 27 of 50 3 6 Setpoint Screens...
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Страница 49: ...IOM PreciseAIR Page 49 of 50 4 11 Maintenance Logs...