25-388 CBI HVAC and Lighting Upgrade 230913 - 1 Instrumentation and Control

Devices for HVAC

SECTION 230913

INSTRUMENTATION AND CONTROL DEVICES FOR HVAC

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Control panels.

B. Control Valves:

1. Ball valves with factory-mounted actuators.

2. Electronic valve operators.

C. Pressure independent valves and actuators.

D. Damper Operators:

1. Electric operators.

E. Wall-, Surface-, and Duct-Mounted Sensors:

1. Temperature sensors.

F. Thermostats:

G. Fan and pump motor run-status monitoring.

H. Pipe-Mounted Sensors and Transmitters:

1. Temperature sensors.

2. Differential pressure transmitters.

I. Energy Metering:

1.02 REFERENCE STANDARDS

A. ANSI C12.1 - Electric Meters - Code for Electricity Metering; 2024.

B. ANSI C12.10 - American National Standard for Physical Aspects of Electricity Meters - Safety

Standard; 2024.

C. ANSI C12.20 - American National Standard for Electricity Meters - 0.1, 0.2, and 0.5 Accuracy

Classes; 2022.

D. ANSI/FCI 70-2 - Control Valve Seat Leakage; 2021.

E. ASHRAE Std 135 - BACnet - A Data Communication Protocol for Building Automation and

Control Networks; 2024, with Errata (2025).

F. LonMark Interoperability Guide - LonMark Application-Layer Interoperability Guide and

LonMark Layer 1-6 Interoperability Guide; Version 3.4; 2005.

G. NEMA EN 10250 - Enclosures for Electrical Equipment (1000 Volts Maximum); 2024.

H. NFPA 70 - National Electrical Code; Most Recent Edition Adopted by Authority Having

Jurisdiction, Including All Applicable Amendments and Supplements.

1.03 ADMINISTRATIVE REQUIREMENTS

A. Preinstallation Meeting: Conduct a preinstallation meeting one week before starting work of this section; require attendance by all affected installers.

1.04 SUBMITTALS

A. See Section 013000 - Administrative Requirements for submittal procedures.

B. Product Data: Provide description and engineering data for each control system component.

Include sizing as requested. Provide data for each system component and software module.

C. Shop Drawings: Indicate complete operating data, system drawings, wiring diagrams, and written detailed operational description of sequences. Submit schedule of valves indicating size, flow, and pressure drop for each valve. For automatic dampers indicate arrangement, velocities, and static pressure drops for each system.

D. Manufacturer's Instructions: Provide for all manufactured components.

Upgrade 230913 - 2 Instrumentation and Control

Devices for HVAC

E. Designer's qualification statement.

F. Manufacturer's qualification statement.

G. Installer's qualification statement.

H. Operation and Maintenance Data: Include inspection period, cleaning methods, recommended cleaning materials, and calibration tolerances.

I. Project Record Documents: Record actual location of control components, including panels, thermostats, and sensors.

J. Warranty: Submit manufacturer's warranty and ensure forms have been filled out in Owner's name and registered with manufacturer.

K. Maintenance Materials: Furnish the following for Owner's use in maintenance of project.

1. See Section 016000 - Product Requirements for additional provisions.

1.05 QUALITY ASSURANCE

A. Designer Qualifications: Design system under direct supervision of a Professional Engineer experienced in design of this work and licensed in the State in which the Project is located.

B. Manufacturer Qualifications: Company specializing in manufacturing the Products specified in this section with minimum three years documented experience.

1.06 WARRANTY

A. See Section 017800 - Closeout Submittals for additional warranty requirements.

B. Correct defective work within a five year period after Substantial Completion.

PART 2 PRODUCTS

2.01 EQUIPMENT - GENERAL

A. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories Inc., as suitable for the purpose specified and indicated.

2.02 CONTROL PANELS

A. Unitized cabinet type for each system under automatic control with relays and controls mounted in cabinet and temperature indicators, pressure gauges, pilot lights, push buttons and switches flush on cabinet panel face.

B. NEMA EN 10250, general purpose utility enclosures with enameled finished face panel.

2.03 CONTROL VALVES

A. High-Performance Segmented and Characterized Ball Valves with Factory-Mounted Actuators:

1. Service: Use for chilled water, hot water, condenser water, brine (50 percent glycol), or steam.

2. Flow Characteristic: Fully proportioning, equal percentage.

3. Rangeability: 300 to 1.

4. Leakage: Class VI when tested in accordance with ANSI/FCI 70-2.

5. Service Temperature Range: Minus 20 to 450 degrees F.

6. Valve Body:

a. Connection Type: Flanged.

b. ANSI Rating: Class 150.

c. Materials:

1) Body: Carbon steel.

2) Ball: 300 series stainless steel.

3) Stem: 300 series stainless steel.

4) Seat: Graphite-reinforced PTFE.

5) Stem Seal: PTFE.

7. Hydronic Systems: Size for 5 psig maximum pressure drop at design flow rate.

8. Actuator Requirements:

Upgrade 230913 - 3 Instrumentation and Control

Devices for HVAC

a. Assembly: Factory-mounted.

b. Input: 0 to 5 VDC configured for proportional control.

c. Accessories: Provide with valve position indicator and manual override.

B. Electronic Valve Actuators:

1. Valves shall spring return to normal position as indicated on freeze, fire, or temperature protection.

2. Select operator for full shut-off at maximum pump differential pressure.

2.04 WALL-, SURFACE-, AND DUCT-MOUNT SENSORS

A. Temperature Sensors:

1. Use thermistor or RTD type temperature sensing elements with characteristics resistant to moisture, vibration, and other conditions consistent with the application without affecting accuracy and life expectancy.

2. Construct RTD of nickel or platinum with base resistance of 1000 ohms at 70 degrees F.

3. 100 ohm platinum RTD is acceptable if used with project DDC controllers.

4. Temperature Sensing Device: Compatible with project DDC controllers.

5. Performance Characteristics:

a. RTD:

1) Room Sensor Accuracy: Plus/minus 0.50 degrees F minimum.

2) Duct Averaging Accuracy: Plus/minus 0.50 degrees F minimum.

3) Chilled Water Accuracy: Plus/minus 0.50 degrees F minimum.

4) All Other Accuracy: Plus/minus 0.75 degrees F minimum.

5) Range: Minus 40 degrees F through 220 degrees F minimum.

2.05 THERMOSTATS

2.06 FAN AND PUMP MOTOR RUN-STATUS MONITORING

A. Current Switches:

1. Micro-Split Core: 2-state, On/Off digital output of motor status.

2. Mini Solid-Core: 2-State, On/Off digital output of motor status with adjustable trip point to detect belt loss or mechanical failure.

3. Mini Split-Core: 2-state, On/Off digital output of inverter-duty motor status with adjustable trip point to detect belt loss or mechanical failure.

4. Solid Core: 2-state, On/Off digital output of motor status with adjustable trip point to detect belt loss or mechanical failure and built-in pilot duty relay.

5. Split Core: 2-state, On/Off digital output of inverter-duty motor status with adjustable trip point to detect belt loss or mechanical failure and built-in pilot duty relay.

6. Maximum AC Current Monitoring Value: As indicated on drawings.

2.07 PIPE-MOUNTED SENSORS AND TRANSMITTERS

A. Temperature Sensors:

1. Pipe-mounted temperature probe tied to weather-resistant enclosure for direct insertion into compatible liquids or gases or inserted into intermediary thermal grease-filled pipe-well compatible with interfaced fluid.

2. Sensor Type: 1,000 ohm Platinum RTD.

3. Transmitter: Fitted within probe-interface enclosure, calibrated.

a. Monitoring Range: 32 to 122 degrees F, adjustable.

b. Hardwired Output: Two-wire, 4 to 20 mA, loop powered.

c. Accuracy: Plus/minus three percent. adjustable on the transmitter end.

4. Accessories: Provide downstream PT test plug and brass pipe-well.

B. Differential Pressure Transmitters:

1. General: Provide wet media differential pressure transducers with 6 ft (1.83 m) armored cable, to allow local or remote pressure sensing capability using existing plumbing runs.

a. Input Power: Class 2; 15 to 30 VDC, 24VAC nominal, 50/60 Hz.

b. Maximum Current Draw: 125 mA, DC.

Upgrade 230913 - 4 Instrumentation and Control

Devices for HVAC

c. Output: 3-wire transmitter; 4 to 20 mA, 0 to 5V, or 0 to 10V, selectable,

d. Sensor:

1) Media Compatibility: 17 to 4 PH stainless steel.

2) Status Indication: Dual color LED.

3) Proof Pressure: 2x max. F.S. range.

4) Burst Pressure: 5x max. F.S. range.

5) Accuracy at 77 degrees F for less than or equal 20 ft:

6) Surge Damping: Electronic; 1 second averaging.

7) Long Term Stability: Plus/minus 0.25 percent.

e. Pressure Ranges:

f. Enclosure: NEMA EN 10250, Type 4.

2.08 ENERGY METERING

A. Power Metering and Sub-meterering:

1. Digital Register:

a. ANSI C12.1 and ANSI C12.20, accuracy class of 0.5 power usage (kWh) meter.

b. Provide meter socket in accordance with ANSI C12.10.

c. Current rating not to exceed two amperes, voltage not to exceed 500 V, V/A combinations not to exceed 100 V/A, life rating of one billion operations.

d. Hardwired Output: kWh usage using dry pulse type form-c output.

2. Usage (kWH) and Demand (kW) Register:

a. BAS, SCADA, or other Integrated Automation Link: ASHRAE Std 135 BACnet

MS/TP.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify existing conditions before starting work.

B. Verify that systems are ready to receive work.

C. Beginning of installation means installer accepts existing conditions.

D. Sequence work to ensure installation of components is complementary to installation of similar components in other systems.

E. Coordinate installation of system components with installation of mechanical systems equipment such as air handling units and air terminal units.

F. Ensure installation of components is complementary to installation of similar components.

G. Coordinate installation of system components with installation of mechanical systems equipment such as air handling units and air terminal units.

3.02 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Check and verify location of thermostats with plans and room details before installation. Locate

60 inches above floor. Align with lighting switches and humidistats; see Section 262726.

C. Mount control panels adjacent to associated equipment on vibration free walls or free-standing angle iron supports. One cabinet may accommodate more than one system in same equipment room. Provide engraved plastic nameplates for instruments and controls inside cabinet and engraved plastic nameplates on cabinet face.

D. Provide conduit and electrical wiring in accordance with Section 260583. Electrical material and installation shall be in accordance with appropriate requirements of Division 26.

3.03 MAINTENANCE

A. Provide a separate maintenance contract for specified maintenance service.

B. Provide service and maintenance of control system for one year from Date of Substantial

Completion.

Upgrade 230913 - 5 Instrumentation and Control

Devices for HVAC

C. Provide complete service of controls systems, including call backs, and submit written report of each service call.

D. In addition to normal service calls, make minimum of two complete normal inspections of approximately four hours duration to inspect, calibrate, and adjust controls.

END OF SECTION

230913 - Instrumentation and Control Devices for HVAC