water return temperature signals.
c.
Record electrical energy in KWH BTU/HR. [and
electrical demand in KW BTU].
d.
Record steam in kg/hr lbs/hr [and annunciate high
pressure steam pressure in kPa psi].
e.
Record natural gas in L 100 cubic feet.
2.1.4
Workstation
a.
Provide a central workstation computer with installed software to
provide an interface for monitoring, troubleshooting, and making
adjustments to the program or operating parameters of all DDC
controllers, including TCUs. The workstation shall also be
capable of programming all controllers, including TCUs.
b.
DDC system shall routinely operate continuously without connection
to the workstation. Information at the workstation is not
required for day to day operations of the direct digital
controllers.
2.1.4.1
Hardware
**************************************************************************
NOTE: Update these criteria as technology dictates.
**************************************************************************
The DDC system manufacturer shall recommend all workstation computer
equipment and peripherals. The workstation shall be configured to operate
according to the DDC system manufacturer's specifications. Workstation
hardware shall be configured to allow operation of software, uploading and
downloading of programs, and creation of graphics. At a minimum the
workstation hardware shall consist of:
a.
Computer; computer shall use Microsoft Windows 98, 2000, or NT,
and shall not have less than Intel Pentium III processor, running
at 600 megahertz speed, 18 giga-byte hard disc, 128 megabyte RAM,
1 serial and 1 parallel port, 2 USB ports, 17 inch monitor with
740 x 1024 and 0.28 dpi minimum resolution, 101 character
keyboard, a 1.4 megabyte 3 1/2 inch floppy drive, 48X internal CD
ROM drive,[ internal 100MB Zip drive with 2 Zip disks][ 16X
internal read, writer, rewrite CD-Rom Drive with software].
b.
Mouse
c.
Modem; 56 Kbaud, v.90 standard
d.
Printer; printer shall be laser output with one spare cartridge.
e.
120-volt terminal strip UL 1449 6-outlet with surge protection.
2.1.4.2
Software
Workstation software shall be configured to operate according to the DDC
system manufacturer's specifications. Software shall be installed in the
workstation computer and permit monitoring and troubleshooting of the DDC
system. Workstation software permits modification of controller parameters
SECTION 15910N
Page 32
Previous Page
