YORK INTERNATIONAL
24
Installation
DOOR HANDLE ADJUSTMENT
Door Gaskets
At time of startup, the door frame and gasketing should
be inspected for possible damage during installation of
the equipment.
AIR FLOW CONTROL DAMPERS
Five combinations of dampers to control the flow, the
mixing of return air and outside air in the air inlet sec-
tion of the unit may be supplied as follows:
1. 30% outside air, 100% return air
2. 100% outside air, 100% return air
3. 100% outside air, 0% return air
4. 0% outside air, 100% return air
5. Economizer Section - 100% outside air, 100%
return air, 100% exhaust air and mixing damper.
Dampers are intended for use with
individual controllers or actuators.
No interconnecting linkage to air
dampers is provided as standard
equipment by YORK. All damper
linkage schemes are to be provided
by others when actuators are not fac-
tory installed.
Linkage design is not provided by
YORK when factory packaged con-
trols are not included. Air flow con-
trol dampers may be operated with
pneumatic or electric actuator/con-
trollers. These items should be set
up in accordance with control
manufacturer’s instructions.
Dampers, operators, controls and link-
age must be checked prior to apply-
ing power to the operators making
sure nothing will obstruct the opera-
tion of the dampers. Do not overdrive
damper operators as this may cause
damage to the dampers.
VARIABLE INLET VANES
Inlet vanes may be provided in the intake cones of low
and medium pressure fans, for unit sizes 105 through
1030, and airfoil type fans for unit sizes 65 through 1030.
The field installed control actuator is attached to a single
shaft extending outside the drive end and provides for
the synchronous control of the inlet vanes on both sides
of the fan. (See Figures 27 and 28)
It is important that the following
check list be adhered to or damage can
be done to the inlet vanes.
FIG. 27 –
TYPICAL VARIABLE INLET VANE
COMPONENTS
LD06347
