York R-407C Manuel D’Utilisation

YORK INTERNATIONAL

the optional convenience outlet. All incoming power
is connected in one location, reducing the cost of
field-supplied and installed power wiring.

• Factory-mounted and wired controls – All con-

trol points within the unit are factory-installed, wired
and tested. The OptiLogic

TM

 

controls can commu-

nicate with BACNet IP.

• Non-fused disconnect – A factory-installed non-

fused disconnect switch simplifies unit installation
and serviceability by reducing installed labor costs.
The disconnect switch is interlocked with the power
cabinet ensuring that all power to the unit has been
disconnected before servicing.

• Low Ambient Operation – Head-pressure control

is accomplished via a VFD motor controller rather
than an inefficient and noisy condenser fan damper.
By varying the speed of the condenser fan, better
control and quieter operation is obtained during the
colder months. Low ambient controls are available

on all systems offering higher rooftop cooling ca-
pacity than competitive units.

• Hot Gas Bypass – Optional on constant volume units,

hot gas bypass reduces the cycling of compressors
which helps prolong the life of the equipment.

• Supply Air Openings – Side supply connections

are available on select configurations, offering more
flexibility for duct layout and improving sound trans-
mission characteristics.

• Compressor Sound Blankets – For applications

in sound-sensitive areas, compressor sound blan-
kets are available to reduce sound emitted from
the rooftop unit.

• Fan Spring Isolators – One-inch spring isolation

is used to prevent vibration transmission from the
rooftop unit’s supply fan to the building. Two-inch
spring isolation is also available.

• Harsh Environments – A variety of coil coating and

materials are available as well as hail guards to pro-
tect coils from weather damage. Seismic and hurri-
cane duty curbs and fan restraints are available.