Tech Evaluation.pdf

TECHNICAL PROPOSAL EVALUATION-CRITICAL FACTOR LIST

SPECIFIC REQUIREMENT

ACCEPTA

BLE

NON-

ACCEPT

ABLE

REMARKS

One (1) Dedicated Outdoor Air System (DOAS) with

Energy Recovery

1) Energy Recovery Type shall be: Static plate, total energy transfer

2) Equipment shall be configured as follows:

a) Installation Location: Indoor unit

b) Supply air fan location: before cooling coil

c) Electrical Service:

i) 460 volt/ 3 phase/ 60 hertz

ii) Motors: Qty 2, Direct Drive motorized impeller

iii) Fan Control: ECM

d) Cooling:

i) Chilled water cooling coil, 100% water

e) Heating:

i) Integrated Gas Heat Module

ii) Heater Size: 75 MBH

iii) Heater Fuel type: Natural Gas, 5.0 –

13.5 inches water column (wc)

iv) Modulating 5:1

v) Separated combustion inlet

vi) Horizontal airflow

vii) Direct Spark ignition

f) BACnet Communication Compatibility

g) Drain Overflow switch

h) Recirculation Damper

i) Integrated Programmable controls

j) Fused Disconnect

k) 1” insulation

3) Airside Cooling Conditions shall be:

a) Airflow: 1850 standard cubic feet per minute (scfm)

b) Altitude: 1299 feet

c) Entering dry bulb temperature: 81.7 degrees

Fahrenheit

d) Entering wet bulb temperature: 70 degrees

Fahrenheit

e) Leaving dry bulb temperature: 52 degrees

Fahrenheit

f) Leaving wet bulb temperature: 52 degrees

4) Internal Fluid Cooling Conditions shall be:

a) Fluid: Water, 100%

b) Entering Fluid Temperature: 45 degrees

c) Fluid Flow Rate: ~22 gallons per minute

5) Cooling Performance shall be:

a) Total Capacity: 110550 Btu/hr

b) Sensible Capacity: 60890 Btu/hr

c) Leaving Air dry bulb temperature: 51.8 degrees Fahrenheit

d) Leaving Air wet bulb temperature: 51.4 degrees Fahrenheit

e) Face Velocity: 222 feet/minute

f) Leaving Fluid Temperature: 55.1 degrees

Fahrenheit

g) Air Pressure Drop: 0.15 inches water column (wc max)

6) Filters shall be: MERV 8, 20”x20”x2”

7) Inlets/Outlets dimensions shall be:

a) Outside Air / Return air Inlets: 36” x 16”

b) Supply Air Outlet: 24” x 16”

c) Exhaust Air Outlet: 20” x 16”

8) Unit Dimensions shall be:

a) Maximum Length: 150”

b) Maximum Width: 95”

c) Maximum Height: 72”

d) Maximum Weight: 3400 pounds

9) Heat Exchanger shall be:

a) Summer Supply Air Entering Air dry/wet bult temperatures: 99.5/73.9 degrees

Fahrenheit

b) Summer Supply Air Leaving Air dry/wet bult temperatures: 81.7/67.7 degrees

10) Airflow Orientation shall be configured as illustrated below: