Specifications - Lord and Son Construction, Inc.

3.2.3 Local Display Panel (LDP)
Local Display Panels shall be installed in each mechanical room containing
an air handler and shall provide SNVT inputs for display and outputs for
adjusting SNVT values as shown on the Points Schedule.
3.2.4 Gateways
Gateways may be used for communication with non-CEA-709.1B control hardware
subject to all of the following limitations:
a. Each gateway shall communicate with and perform protocol translation
for non-CEA-709.1B control hardware controlling one and only one
package unit.
b. Non-CEA-709.1B control hardware shall not be used for controlling
built-up units.
c. Non-CEA-709.1B control hardware shall not perform system scheduling
functions.
3.2.5 Network Interface Jack
A standard network interface jack shall be provided for each node on the
control network. For terminal unit controllers with hardwired thermostats
this network interface jack shall be located at the thermostat or within 10
ft of the controller. Locating the interface jack near the controller is
preferred. For all other nodes the network interface jack shall be located
within 10 ft of the node. If the network interface jack is other than a 1/8
inch phone jack, the Contractor shall provide an interface cable with a
standard 1/8 inch phone jack on one end and a connector suitable for mating
with installed network interface jack on the other. No more than one type
of interface cable shall be required to access all network interface jacks.
Contractor shall furnish one interface cable(s).
3.2.6 Room Instrument Mounting
Room instruments, including but not limited to wall mounted thermostats and
sensors located in occupied spaces shall be mounted 60 inches above the
floor unless otherwise shown. Unless otherwise shown on the Thermostat
Schedule:
a. Thermostats for Fan Coil Units shall be unit mounted.
b. All other Thermostats shall be wall mounted.
3.2.7 Indication Devices Installed in Piping and Liquid Systems
Gauges in piping systems subject to pulsation shall have snubbers. Gauges
for steam service shall have pigtail fittings with cock. Thermometers and
temperature sensing elements installed in liquid systems shall be installed
in thermowells.
3.2.8 Temperature Limit Switch
Section 23 09 23 Page 28