FORM 201.18-NM1.2
3
YORK INTERNATIONAL
SECTION 1 – RCC HARDWARE AND SETUP
GENERAL
The YORK Remote Control Center option (371-02485-
102) provides chiller operating data and control from a
remote location. This data includes system status, op-
erating information, fault information, and chiller oper-
ating history at the push of a key.
All data is displayed on a 40 character backlit LCD
display (2 lines of 20 characters) and is accessed by a
soft touch keypad. The keypad and display are built
into an 8" x 10" x 2-1/2" (203 mm x 254 mm x 64 mm)
NEMA-1 enclosure to be wall mounted indoors.
The Remote Control Center is also designed to enable
the user to obtain a printout directly from the remote
panel, simplifying the data logging procedure.
One (1) Remote Control Center (RCC) is needed for
remote control and monitoring of each screw chiller.
This RCC manual must be used in conjunction with
the chiller Installation, Operation, Maintenance
Manual, (IOM) Form 210.18-NM1, which is included
with each chiller. Additional copies can be purchased
through the (York) Baltimore Parts Center, Baltimore
MD. Phone 1-800-932-1701.
The Remote Control Center can not
be used with a Millennium ISN Sys-
tem.
MOUNTING
Mount the Remote Control Center at the desired loca-
tion and attach it securely. The panel may be mounted
away from the chiller as far as 4000 ft. (1219 m) of
wiring will allow.
PRINTER CONNECTION
The printer communicates through the RCC RS 232
port, which are terminals at TB2 marked TXD, RXD,
and DGND, as shown on page 6.
INSTALLATION CHECKLIST
REFER TO INSTALLATION/CONNECTION
DIAGRAMS, PAGES 6-7.
• 24VAC Power Supply (included)
• 2 conductor shielded cable with shield connected
at RCC only. (user supplied)
• At RCC, red wire on 485+ and black wire on 485–.
• At RCC, shield and grnd connected and jumpered.
• 180 ohm resistor installed at RCC or micro; never
at both.
• At chiller, red wire on BAS+ and black wire on
BAS–.
• At chiller, use “PROGRAM’ and ‘ENTER” to ac-
cess and select REMOTE as type of control mode.
• Correct eprom installed at chiller and RCC
See page 4 for eprom versions.
WIRING
Operating voltage requirement for the remote panel is
24VAC, supplied by a wall mounted transformer (in-
cluded with RCC). The transformer is wired into the
remote panel at TB1, as shown in Fig. 1.
A communications cable must connect the chiller to
the remote panel. This cable should be a twisted pair
shielded cable, type Alpha 4562, Beldon 9320, or
Quabbin 930421-2. The cable length must not exceed
4000 ft. (1219 m).
At the RCC, assure that the 180 ohm resistor is con-
nected between terminals 1 and 2 of the TB2 connec-
tor. Also, assure that a jumper connects terminals 3 and
4. See Fig. 1.
Place the J19 jumper on the Microprocessor Board in
the RS-485 position.
Never run the communication cable
in close proximity to any power wir-
ing. For best results, it should be run
in dedicated, grounded
conduit.
1
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