Vendor_Q_A_0006.pdf

RFQ 140G0122Q0204 – HVAC Water Treatment

Vendor Q&A

1. Who is the current chemical supplier?

Answer: No supplier

2. Do you have aluminum boiler?

Answer: spec sheet attached

3. Dose any of the loops listed have leaks that would significantly hinder our ability to treat them? If so, what is the total gallons of makeup per month/year to each of these systems?

Answer: The open chiller has evaporation but No closed loop leaks

4. What was last contract award dollar amount for FY18, FY19, FY20, FY21 and FY22?

Answer: $6,100.00 but the scope was changed

5. If any equipment is not functional (chemical feed pumps, controller, pot feeder, etc.) will

EESC purchase outside of the contract?

Answer: EESC will purchase failed equipment

6. Can the existing chemicals be reused?

Answer: No

7. Is the contractor required to provide the chemical for a chilled water system or a hot water system that has been drained for maintenance or if a major leak occurs?

Answer: The cooling tower is drained each year for maintenance – Yes, with start of the cooling season

Performance:

▪ Full Load Thermal Efficiency 93.4%

▪ Design Certified by SCAQMD for Low NOx Operation

▪ Modulating Burner with 5:1 Turndown Capability

▪ Factory Equipped for Outdoor Reset Operation

▪ Dual Temperature Settings for Central Heating and

Domestic Hot Water

▪ Dual Flame Sensing for Reliable Ignition

▪ Suitable for Firing Natural or LP Gas

Construction:

▪ Designed, Constructed and Stamped in accordance with ASME Boiler & Pressure Vessel Code, Section IV

▪ Design certified for Zero Clearance to Combustible Construction

▪ Maximum Allowable Working Pressure: 160 PSI

▪ 304L Stainless Steel Heat Exchanger

▪ Sealed, Negative Pressure Cabinet

▪ Removable Jacket Panels

▪ Suitable for Floor or Wall Mounting*

▪ Leveling Legs

▪ Factory Equipped with Boiler Service Switch

▪ 120 Volt Convenience Outlet

Exhaust/Air Intake Piping:

▪ Suitable for Sealed Combustion Operation

▪ CPVC Vent Adapter for PVC or CPVC Pipe

▪ Factory Supplied Vent & Air Inlet Terminations with

Screens

▪ Vent Temperature Sensor

Safety Features:

▪ 30 PSIG ASME Safety Relief Valve (Loose)

▪ Pressure/Temperature Gauge (Loose)

▪ Integrated Connections for Low Water Cut Off or Flow

Switch

▪ Manual Reset High Temperature Limit

Codes:

▪ Design Certified to ANSI Z21.13

▪ CSD-1 Compliant

▪ California Code Compliant

▪ Massachusetts Code Compliant

Control Features:

▪ Plain English Status Display

▪ Factory Equipped for Multiple Boiler Cascade

Operation

▪ Flame Signal Logging Capability

▪ Freeze Protection

▪ DHW Tank Warm Hold

▪ Ramp Delay Step Modulation

▪ Outdoor Sensor Included

▪ System Type Presets

▪ Temperature Boost Function

▪ Warm Weather Shut Down

▪ Anti Cycling Logic

▪ Limited DHW Priority

▪ DHW Heat Economy Circulation

▪ Service Notification

▪ System Test for Manual Control of Firing Rate

▪ Fault History

Combustion System:

▪ State of the Art Metal Mesh Burner

▪ Dual Flame Sensing

▪ High Energy Spark Ignition

Condensate System:

▪ Built-in Condensate Trap with Neutralization

▪ Blocked Condensate Switch

▪ Highly Visible, Easy Access Condensate Collector

Warranty:

▪ One Year Parts and Labor Warranty

▪ 10 Year Limited Warranty

PF-399 Features and Standard Equipment Peerless®PUREFIRE ®

Optional Equipment:

! PFA-1 Interface Adapter

▪ Alarm Contacts

▪ Analog Input

▪ Modbus Communications

! Steel Stand Convertible for Wall Mounting ! Domestic Water Tank Temperature Sensor ! System Sensor for Multiple Boiler Operation ! Boiler Circulator ! 50 PSI Safety Relief Valve ! 100 PSI Safety Relief Valve ! 150 PSI Safety Relief Valve

PEERLESS® PUREFIRE® HIGH EFFICIENCY STAINLESS STEEL BOILER

SERIES PEERLESS® PUREFIRE® BOILER RATINGS

Boiler Input (MBH)

Heating Capacity

(MBH)

Net Ratings

(MBH)

Thermal Efficiency

PF-399 80 399 373 324 93.4

SERIES PEERLESS® PUREFIRE® ELECTRICAL RATINGS

Supply Voltage

(-15%, +10%) Frequency (±1.2 hz)

Blower Gas Valve Pumps Max Total Service

Current to Boiler Voltage

(VAC)

Current (Amps)

Voltage

(VAC)

Current (Amps)

Voltage

(VAC)

Max.

Current (Amps)

120 VAC 60 hz 120 2.58 120 0.21 120 2.94 5.73

These specifications are subject to change without notice.

PF8121 R2 (3/14)

Printed in U.S.A.

©2014 PB Heat, LLC. All rights reserved.

SERIES PEERLESS® PUREFIRE® CAPACITIES

Gas Pressure Min/Max

(Inch WC)

Total Water Capacity (Gallons)

Water Flow Rate & Pressure Drop Total Combined Length of Air Intake & Vent

(Feet)

Shipping Weight (Lbs)

Design Temp Differential

(°F)

Flow Rate

(GPM)

Pressure Drop (Feet)

4.5 13.5 2.60 20 37.3 18.08

200 25530 24.9 8.50 40 18.7 4.97

CONTROLS