Johnson Controls York MaxE YK Series, Руководство пользователя

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ForM 160.75-N1 (309)
35
JohNSoN CoNtroLS
fig. 26 – UNIt INSULAtIoN
LD12649
chiller with solid state starter or
Variable speed drive
A chiller equipped with a factory mounted Solid State
Starter or Variable Speed Drive does not require wiring
to the compressor motor. The motor power wiring is
factory connected to the Solid State Starter or Variable
Speed Drive (or an optional factory installed disconnect
switch). See Field Wiring Diagram. All wiring to the
control panel and the oil pump starter is completed by
the factory. A control transformer is furnished with the
Solid State Starter or Variable Speed Drive.
insulation
(see fig. 26)
DO NOT field insulate until the
unit has been leak tested under the
supervision of the Johnson Controls
representative.
Insulation of the type specified for the job, or minimum
thickness to prevent sweating of 30°F (-1°C) surfaces
should be furnished (by others) and applied to the
evaporator shell, end sheets, liquid feed line to flow
chamber, compressor suction connection, and evaporator
liquid heads and connections. The liquid head flange
insulation must be removable, to allow head removal for
the tube maintenance. Details of areas to be insulated
are given on the Product Drawing.
Units are furnished factory anti-sweat insulated on order
at additional cost. This includes all low temperature
surfaces except the two (2) cooler liquid heads.
installation chEcK –
rEquEst for start-uP sErVicE
The services of a Johnson Controls representative will
be furnished to check the installation and supervise the
initial start-up and operation on all chillers installed
within the Continental United States.
After the unit is installed, piped and wired as described
in this Instruction, but before any attempt is made to
start the unit, the Johnson Controls District Office
should be advised so that the start-up service, included
in the contract price, can be scheduled. Notification
to the Johnson Controls office should be by means of
Installation Checklist and Request, Form 160.46-CL1,
in triplicate.