ESBD_File_353715_AHU-K6 Sched and details Garza West MWR 09522005 021524.pdf

HP VOLTS/PH

AHU-K6

SF-K6

AF-1, AF-2

GB-K6

MCQUAY RAH077CYA CV 2 speed KITCHEN 35570 5 975 25350 50 460/3 1250 1560 23 105 69 74 100 3 460

AHU-K6

Alternative

TBD TBD VAV KITCHEN 33250 4 4200 TBD 460/3

Notes:

Provide Gas Regulator to reduce line pressure from 12 psig to 7" WC minimum or per manufacturer's recommendations Burners shall be selected based on site elevation of 190 ft. AMSL Electrical Disconnect Yes Electrical Disconnect for lights Yes Elevation 190 ft AMSL Service Electrical Outlet 120/60/1 15 amps Furnace Model 150SRA 1 Replacement unit includes new 24"H insulated curb for return air duct Return Air CFM is 19,015 Gas Burner Minimum CFM is 13700 New Air filters shall include a washable prefilter and minimum MERV 8 final filter.

Original Unit Serial# is 3ZBO1184-01 See attached for more details

This schedule and notes below are based on the original 1993 specifcations. Replacement selection capacity shall be no greater than the original. Preferred replacement capacity is detailed as alternative basis of design. Supply Fan motor HP to be based on alternative design cfm and ESP.

PACKAGED AIR HANDLING UNITS (Garza West MWR# 09522005)

TAG

BASIS OF DESIGN

TYPE SERVES

FAN DATA GAS HEAT ELECTRICAL DATA

MANUF. MODEL

TOTAL AIR

(CFM)

ESP IN.

WC

RPM MIN. O.A.

(CFM)

FAN MOTOR MOP PHASE VOLTFILTERS

MBH

OUTPUT

MBH

INPUT

EAT

DB

DEG

LAT

DB

DEG

FLA MCA

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Text Box Vendor shall furnish and install all equipment and associated parts necessary to complete the installation per equipment schedules, other details provided, and manufacturer's recommendations.

Startup equipment per manufacturer's recommendations.

Vendor is responsible for final integrity, functionality, and operability of the new AHU installation and all installed components.

Awarded Vendor shall contact TDCJ Facilities Engineering to review scope and schedule.

Drawings and other details provided are diagrammatic. Carefully coordinate installation requirements with existing and/or planned structural, architectural, electrical, mechanical and other applicable conditions and field adjust to avoid conflict.

Unless otherwise noted, the locations of both existing and planned elements are approximate and are not intended to convey the exact details and installation. Field determine exact locations by actual measurements and conditions before installation commences.

D. CONSTANT VOLUME UNITS (AHU-K5, 1«ii. KS, K9, K10 and)(

Refer to Page 15970-13, Paragraph D, Constant Volume Units, delete: air damper, return air

1. (AHU-X2).

PSA 4043.00

Al':> z.. fY\ '1. '+ .,f0£Jt2_

a. Normal Mode:

•r.

1) Outside air damper shall be at minimum position. Return air damper shall be fully open.

2) Outside air and return air damper shall be modulated in sequence per economizer cycle of operation. Upon a call for cooling, the enthalpy of the outside air and return air shall be compared. If the enthalpy of the outside air is

-less than the enthalpy of the return air, the dampers-sh-all be modulated upon demand to use up to 100 % outside air to maintain mixed air temperature setpoint. The mixed air temperature setpoint shall be reset based upon return air temperature. Dampers shall provide a low limit mixed air temperature of 55 deg F, as measured from the discharge air temperature sensor. If the enthalpy of the outside air is higher than the enthalpy of the return air, the dampers shall be modulated to minimum outside air position.

3) (AHU-K6 only): Outside air damper shall be modulated to maintain 0.1 IN WC positive pressure in the space, when compared with the outdoors.

15970 - 13 22 April, 1993 TDCJ Alberti/Beeville, TX

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Text Box Sequence of Operation for AHU-K6 MWR 09522005 (from original specs)

b. Panel shall indicate "FAN FAILURE", "HEATING FAILURE', "DIRTY FILTER #1", and "DIRTY FILTER #2' with a red pilot light which comes on for each condition.

c. Provide a control switch for both supply and return fans, with positions 'OFF', "AUTO', LOW SPEED', and 'HIGH SPEED'.

d. Provide a label for each panel indicating respective AHU, and labels for each pilot light and switch.

e. Provide a time switch or mircoprocessor based programmable controller for scheduled operating periods of the AHU, inside the panel.

f. AHU manufacturer shall furnish the remote status panel, to be field installed and field wired.

PSA 4043.00 15970 - 15 22 April, 1993 TDCJ Alberti/Beeville, TX

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Text Box AHU-K6 Scope of work - MWR 09522005

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AHU-K6 Details - MWR 09522005

Existing AHU-K6 is on 24” curb on a 39’x 14’ pad. AHU is approx. 40’ L x 8.3’ W and 8.1’ H

Inserted Text E

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Inserted Text E

AHU-K6

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RA

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SA

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OSA

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AHU-K5

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Text Box

AHU-K7

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Text Box Replace AHU-K6 scope

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