Attachment 1 - Salient Characteristics.pdf

Attachment 1 – Salient Characteristics

FA441924Q0038

ELECTRIC STEAM HUMIDIFICATION SYSTEM

PRODUCTS:

• Provide Nortec RS resistive element humidifier generating mineral-free, sterile steam for use with potable, De-Ionized (DI), or Reverse Osmosis (RO) water. Packaged unit, wall mounted, atmospheric steam generation using resistive heating element. Electrode technology and boiler steam (pressure steam) technology not acceptable.

• Unit[s] to be complete with:

a. Touchscreen controller with standard building automation and Online connectivity:

i. Intuitive touchscreen control with color graphic user interface.

ii. Standard building automation communication protocols BACnet IP, BACnet

MSTP and Modbus. Additional hardware required for building automation communication not acceptable.

iii. Embedded web interface for easy configuration and remote monitoring from any computer with a web browser over a local area network (LAN) connection.

iv. USB interface for new software/feature upload and download of operational information.

v. Single or dual channel analog signal acceptance, supporting both demand and transducer control. Ability to control setpoint from humidifier control when using transducer controls.

vi. Humidifier sizing and electrical characteristics can be gathered from the Product Designation – Nortec RS 65 480V/3~ OR be 60 lb/hr in-duct humidifier with 480V 3 phase power.

vii. Steam Distributors: two (2) Condair BSD Steam Distributors OR in-duct steam distributor(s) capable of delivering at minimum 60 lb/hr of humidification in vertical and horizontal configuration.

b. Packaged system with Condair resistive element technology:

i. Incoloy based resistive heating element for steam production.

ii. Modulating output between 4% and 100% of rated capacity.

iii. Control accuracy of up to +/- 1% RH using optional Precision solid state relay control and high precision humidistat.

iv. Separate scale collection chamber external from main boiling tank when using optional Scale Management system.

v. Dual magnetic electronic float system, located outside of the boiling water to ensure accurate water level control and reduced maintenance. Systems using conductivity probes or floats located within hot reservoir are not acceptable.

vi. Self-diagnostics during start-up of system to prevent unsafe operation of the unit[s]:

a) Fill valve check.

b) Float level check.

c) Drain pump check.

vii. Durable powder coated steel cabinet with zero side clearance requirement for minimal footprint.

viii. Insulating air gap between plumbing and electrical compartment for increased electronic reliability.

ix. Standard internal drain water tempering to ensure maximum 140°F [60°C] drain water. External drain water cooler not acceptable.

x. Integral fill cup with minimum 1-inch [25 mm] air gap to prevent back siphoning.

xi. Automatic off-season shut-down [after 3 days of "no call"] will completely drain the boiling tank[s] and automatically restart on call for humidity.

xii. Programmable drain settings too allow cycling small water quantities during operation without interrupting steam production.

xiii. Integral design allowing easy installation and access for servicing.

EXCECUTION

• Installation:

a. Install humidifiers per manufacturers' instructions.

b. Install with required clearance for service and maintenance.

• Accessories:

a. Install accessories in accordance with manufacturer's recommendations.

• Commissioning:

a. Start-up of humidifier to be by factory trained technician.