M301_HVAC Details.pdf
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- Solicitation number
- 36C25626R0015
About this file
This document is a construction drawing set for a new water storage facility project for the U.S. Department of Veterans Affairs located in Fayetteville, Arkansas. The construction documents, issued on 05-05-2025, contain mechanical HVAC details and system specifications for the facility.
The project requires contractor furnishing and installation of a Building Automation System (BAS) featuring web-enabled native BACnet building controllers and equipment controllers capable of integrating and monitoring all new HVAC systems. The BAS must integrate into the existing campus front end network. Ductless split system monitoring (DSFC/DSCU) equipment shall be controlled by wall-mounted, hard-wired manufacturer-supplied thermostats with a 78-degree space temperature setpoint, with DDC monitoring space temperature and alarming when space temperature exceeds 90°F. HVAC installations include ductless mini-split systems with specified refrigerant piping requirements, including insulation of suction lines and liquid lines (liquid lines insulated only on ductless mini-splits), water-tight aluminum jacketing on all exterior refrigerant piping, and proper expansion valve configuration with bulb placement. Piping supports utilize P100 Unistrut channels with unicushion insulation material for copper piping, wing-shape fittings secured with masonry anchor bolts, and Schedule 40 PVC piping as noted on plans. The A/E of record is JohnsonDanforth & Associates, Little Rock, Arkansas, with project number 2018.001 and drawing number M301. The document is marked as Controlled Unclassified Information (CUI) and indicates the facility is fully sprinklered.
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Text version
AIR ADMITTANCE
VALVE EQUAL TO
STUDOR MINI-VENT
CLEANOUT PLUG
CEILING SLOPE 1/8" PER FT. SLOPE
HANGER (TYP.)
SCH. 40 PVC (SIZE
AS NOTED ON
PLANS)
FLEX TUBING
COVER EQUAL TO AIRTEC TYPE
A EXPOSED LINESET WITH 90
DEG. ELBOW
LIQUID LINE
MINI-PUMP
SUCTION LINE
MINISPLIT
FAN COIL
5'-0" MIN
1.
2.
3.
4.
NOTES:
WRAP EXPANSION VALVE, BULB AND FITTINGS WITH ARMAFLEX INSULATION TAPE
AND SECURE WITH BLACK CABLE TIES.
TRAP AND LOOP AT EVAPORATOR COIL IS NOT REQUIRED FOR UNITS WITH LIQUID
LINE SOLENOID VALVES.
SUCTION LINES SHALL BE INSULATED. LIQUID LINES SHALL BE INSULATED ONLY
ON DUCTLESS MINI-SPLITS.
INSTALL WATER-TIGHT ALUMINUM JACKETING ON ALL EXTERIOR REFRIGERANT
PIPING.
LOOP SUCTION LINE TO
ABOVE TOP OF
EVAPORATOR COIL
EXTERNAL EQUALIZER
SIGHT GLASS
LIQUID LINE SERVICE
GAUGE PORT
FILTER / DRYER
SERVICE VALVES
SLOPE TO UNIT
REFRIGERANT ACCESSORIES FURNISHED
WITH THE UNIT WILL BE ACCEPTABLE FOR
USE. NO DUPLICATION OF ACCESSORIES
WILL BE REQUIRED.
CONDENSIN
G UNIT
EVAPORATOR
COIL
THERMAL ELEMENT
LOCATE BULB AS CLOSE TO COIL OUTLET AS
POSSIBLE. INSTALL EQUALIZER LINE
DOWNSTREAM OF BULB. LOCATE BULB ON
TOP OF SUCTION PIPE FOR 5/8" O.D. AND
LESS ALL SUCT. PIPING LARGER THAN 5/8"
O.D. SHALL BE INSTALLED ON SIDE AT 3
O'CLOCK POSITION.
DRAIN PAN
CONDENSATE DRAIN
SMALL TRAP IN SUCTION LINE TO PREVENT ERRATIC
OPERATION OF EXP. VALVE DURING START-UP
R L
R S
P100 UNISTRUT CHANNEL,
LENGTH AS REQUIRED
SINGLE PIECE PIPE STRAP,
SECURED TO UNISTRUT WITH HEX
HEAD CAP SCREWS AND CHANNEL
NUTS WITH SPRINGS
UNICUSHION INSULATION MATERIAL
FOR COPPER PIPING
PIPE - SEE PLAN FOR SIZE AND
ROUTING
P2345 WING SHAPE FITTING, SECURED TO
CHANNEL WITH HEX HEAD CAP SCREW
AND CHANNEL NUT WITH SPRING AND TO
CONCRETE WITH 5/16" MASONRY ANCHOR
BOLTS
CONCRETE OR FLOOR
MSTPMSTPMSTP
MSTP
Existing Unitary Controllers
Existing Unitary Controllers
Existing Unitary Controllers
Existing Unitary Controllers
Existing BACnet Network
Building 49 Existing BACnet Network
Building 3
Existing BACnet Network Administration
Building
OTHER NETWORKS ARE TOO LARGE TO
REFLECT ON THIS SHEET. AS-BUILT
DRAWINGS ON FILE AT NORTHWEST
CONTROLS. CONTACT JOSH DAVIS
(479) 872-9000 AS NEEDED FOR MORE
INFORMATION.
Mini-Split
BACnet Interface Typical of 3
Existing Unitary Controllers
Existing Unitary Controllers
Ethernet
Existing BAS Server
Windows 10 PC
BACnet Global Controller
System Architecture
S
PL101 -
Chlorination Closet 103 Vent Fan Status w/ Fail Alarm
HVAC CONTROLS GENERAL NOTES:
CONTRACTOR SHALL FURNISH AND INSTALL BUILDING
AUTOMATION SYSTEM (BAS) AS FOLLOWS:
· WEB ENABLED NATIVE BACNET BUILDING CONTROLLER AND
EQUIPMENT CONTROLLERS CAPABLE OF ALL NEW HVAC
SYSTEMS INTEGRATION AND MONITORING AS SHOWN.
· INTEGRATION OF BUILDING CONTROLLER INTO EXISTING
CAMPUS FRONT END.
· DUCTLESS SPLIT SYSTEM MONITORING (DSFC / DSCU):
·· EQUIPMENT SHALL BE CONTROLLED BY WALL MOUNTED,
HARD-WIRED MANUFACTURER SUPPLIED THERMOSTAT
WITH 78 DEG SPACE TEMPERATURE SETPOINT.
·· DDC SHALL MONITOR SPACE TEMPERATURE AND ALARM
ON SPACE TEMP ABOVE 90°F.
U.S. Department of Veterans Affairs
CONSULTANTS ARCHITECT/ENGINEER OF RECORD STAMP Office of Construction and Facilities Management
Drawing Title
Approved: Project Director
Phase Project Title
Location
Issue Date Checked Drawn
Project Number
Building Number
Drawing Number
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
A
B
C
D
E
F
Revisions: Date:
VA FORM 08 - 6231
CONTROLLED UNCLASSIFIED INFORMATION - CUI
CONTROLLED UNCLASSIFIED INFORMATION - CUI
FULLY SPRINKLERED
4/
/2
2:
:5
PM
CONSTRUCTION
DOCUMENTS
CONSTRUCT NEW WATER
STORAGE FACILITY
FAYETTEVILLE, AR
05-05-2025
564-19-101
JDA PROJECT #: 2018.001
A/E
2200 N. RODNEY PARHAM ROAD
SUITE 210
LITTLE ROCK, AR 72212
501-404-4811 jda@JohnsonDanforth.com
JohnsonDanforth & Associates
STRUCTURAL ENGINEER
BERNHARD TME
BUILDING 2, 1 ALLIED DRIVE
SUITE 260
LITTLE ROCK, AR 72202
GENERAL NOTES
SHEET NOTES
PARTITION LEGEND
SECURITY
GRW
801 CORPORATE DRIVE
LEXINGTON, KY 40503
CIVIL ENGINEER
HODGES ENGINEERING
231 SHORELINE DRIVE
MOUNTAIN HOME, AR 72653
FIRE PROTECTION
FP&C CONSULTANTS KC, LLC
1330 BURLINGTON STREET, STE. 200
NORTH KANSAS CITY, MO 64116
NEW UNRATED PARTITION
NEW / EXISTING 1 HOUR BARRIER
BB CD
MECHANICAL
HVAR DETAILS
M301
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