Attachment 2 VGLZ212011 DRAWINGS Repair HVAC.pdf
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- Solicitation number
- W50S85-21-B-0004
About this file
This document package includes engineering drawings and specifications for a federal contract opportunity to repair HVAC systems at Selfridge Air National Guard Base. The opportunity involves replacing boilers, pumps, controls and associated piping and equipment for HVAC systems in buildings H7, H9, B32 and B127. Key requirements include installing new high efficiency hot water boilers, variable speed pumps, and Direct Digital Controls integrated with the base's BAS network. The project value is estimated between $250,000 to $500,000. The solicitation number is W50S85-21-B-0004 and was issued by the Department of the Army Michigan Army National Guard. The period of performance is 365 calendar days and the NAICS code is 238220. The opportunity is set aside for small businesses with a size standard of $16.5M. The pre-bid conference was scheduled for August 18, 2020 and award will be made based on price to the responsible bidder offering the most advantageous proposal to the Government. Funds are anticipated to be available by September 30, 2021 and the opportunity has been prioritized on the National Guard funding list contingent upon available funding.
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1 2 3 4 5
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B
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D
A
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SHEET OF
Engineer/Consultants
Sheet Title
REPAIR HVAC
H7, H9, B-32, B-127
MECHANICAL
DETAILS &
SCHEDULE
1 3
REVISIONS:
Project Number:
File:
Drawn By:
Designed By:
Checked By: T. Resh
T. Resh
H. Bauzon
VGLZ 212011
Mark Date Description
PROJECT
Scale: NOT TO SCALE
Date: 24 MAR 2021
NOTES:
PUMP SCHEDULE
MARK LOCATION SERVICE
BASED ON
TYPE SERIES FT.MODEL GPM
REMARKS
PHASE
VOLTAGE
MFR.
CAPACITY MOTOR
NOTES:
1. PROVIDE ALL NEW PUMPS WITH DISCONNECT SWITCH AND NEW ISOLATION VALVES.
2. PROVIDE WITH MOUNTING SUPPORT AS NEEDED FOR NEW RECIRC PUMPS. NEW FLOOR MOUNTED PUMPS WILL BE PROVIDED WITH NEW
CONCRETE PADS.
3. PUMP IS FIELD WIRED FROM BOILER. REFER TO BOILER MANUFACTURER'S WIRING INSTRUCTIONS.
4. PUMP SHALL COMMUNICATE W/ BASE ALC DDC SYSTEM BACNET INTERFACE SHALL BE PROVIDED.
5. ALL PUMPS WILL HAVE INTEGRAL VFDs ON THE MOTORS.
6. ADD DDC / BACNET TO CONTROL VFD.
HOT WATER BOILER SCHEDULE
MARK LOCATION SERVICE
REMARKS
PHASE
VOLTAGE
NOTES:
1. PROVIDE ACID NEUTRALIZING KIT FOR CONDENSATE DRAIN.
2. FOR BOILER CIRCULATION PUMPS, SEE PUMP SCHEDULE FOR
DETAILS.
3. PROVIDE WITH NEW 4" PVC AIR INLET AND 4" PVC FLUE VENT
CONCENTRIC WALL PENETRATION.
4. PROVIDE WITH SMART SYSTEM CONTROL AND BMS GATEWAY
(BACNET COMPATIBLE).
5. BOILER TO BE PROVIDED WITH FLOW SWITCH.
6. PROVIDE WITH AIR SEPARATOR(HONEYWELL SPARCO - PV150 -1.5")
7. REPAIR ALL ABANDONED ROOF PENETRATIONS.
BASED ON
MAKE/MODELTYPE
INPUT MBH
(approx) AFUE %
IN. W.G.
GAS
PRESS.
120V/1ØH7-1
H7-2
BOILER ROOM HEATING HW HIGH EFFICIENCY LOCHINVAR
KNIGHT
SERIES
OR EQUAL
385 97.0 6"-12" - 1, 2, 3, 4, 5, 6, 7, 8,9
NET
AHRI
MBH
TOTAL
AMPS
2.7
HP AMPS
RPM
MAIN HHWMECH ROOM INLINE
1,2,3,4,5,6STANBY HHWMECH ROOM INLINE
TO FLOOR
DRAIN
FLOOR MOUNTED BLADDER TYPE EXPANSION
TANK AND AIR SEPARATOR PIPING DIAGRAM
NTS (ALL NEW)
WATER MAKEUP
CHEMICAL
SHOT FEEDER
HS
HR
PRESSURE
GAUGE
AUTOMATIC
AIR VENT
BELL & GOSSETT
BELL & GOSSETT
RECIRC AHU HHWMECH ROOM INLINEBELL & GOSSETT
1,2,3,4,5,6
1,2,3,4, REDUCED PRESSURE ZONE
BACKFLOW PREVENTER
GLOBE VALVE
AUTOMATIC AIR VENT WITH
NEW HIGH CAPACITY
FLOAT TYPE AUTOMATIC
AIR VENT EQUAL TO
METRAFLEX MV-15A
E-90
E-90
E-60 MATCH
EXISTING
MATCH
EXISTING
MATCH
EXISTING
120V/1ØH9-1
H9-2
BOILER ROOM HEATING HW HIGH EFFICIENCY 385 97.0 6"-12" - 2.7
120V/1ØB32-1
B32-2
BOILER ROOM HEATING HW HIGH EFFICIENCY 440 97.0 - 2.7
120V/1ØB127-1
B127-2
BOILER ROOM HEATING HW HIGH EFFICIENCY 580 97.0 2.7
1, 2, 3, 4, 5, 6, 7, 8,9
1, 2, 3, 4, 5, 6, 7, 8,9
1, 2, 3, 4, 5, 6, 7, 8,9
MATCH
EXISTING
6"-12"
6"-12"
LOCHINVAR
KNIGHT
SERIES
OR EQUAL
LOCHINVAR
KNIGHT
SERIES
OR EQUAL
LOCHINVAR
KNIGHT
SERIES
OR EQUAL
(BASIS FOR DESIGN)
(BASIS FOR DESIGN)
AutoCAD SHX Text 127th WING/CIVIL ENGINEER
AutoCAD SHX Text
SELFRIDGE AIR
AutoCAD SHX Text
NATIONAL GUARD
AutoCAD SHX Text
BASE, MICHIGAN
AutoCAD SHX Text
1. THE PLAN AND UNDERGROUND THE PLAN AND UNDERGROUND UTILITIES SHOWN HAVE BEEN LOCATED FROM FIELD SURVEY INFORMATION AND EXISTING DRAWINGS. THE GOVERNMENT MAKES NO GUARANTEES THAT THE UNDERGROUND UTILITIES SHOWN COMPRISE ALL SUCH UTILITIES IN THE AREA, EITHER IN-SERVICE OR ABANDONED. THE GOVERNMENT FURTHER DOES NOT WARRANT THAT THE UNDERGROUND UTILITIES SHOWN ARE IN THE EXACT LOCATION INDICATED ALTHOUGH THEY ARE LOCATED AS ACCURATELY AS POSSIBLE FROM AVAILABLE INFORMATION.
AutoCAD SHX Text NOTE: FOR INFORMATION PURPOSES ONLY. NOT FOR DESIGN OR CONSTRUCTION. FIELD VERIFY DIMENSIONS PRIOR TO DESIGN AND PRIOR TO CONSTRUCTION.
A
B
C
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SHEET OF
Engineer/Consultants
Sheet Title
NEW HEATING
HW BOILERS
PIPING &
CONTROLS
2 3
REVISIONS:
Project Number:
File:
Drawn By:
Designed By:
Checked By: T. Resh
T. Resh
H. Bauzon
Mark Date Description
PROJECT
Scale: NOT TO SCALE
Date:
NOTES:
WELD NECK
FLANGE
CHECK
VALVE
LONG RADIUS
ELBOW
BUTTERFLY
VALVE
SIDE VIEW
FLANGE
WELD NECKWELD NECK
FLANGE
PLAN VIEW
PARALLEL PUMP INSTALLATION
NOT TO SCALE
HEATING PLANT PIPING DIAGRAM
NOT TO SCALE
BP-1
B-1CONDENSATE TRAP
REDUCER AS
REQUIRED (TYP.)
TEMPERATURE AND PRESSURE RELIEF VALVE. PIPE FULL SIZE
TO FLOOR DRAIN
PRESSURE GAUGE
3" CONCRETE
HOUSEKEEPING PAD 3/4" ACIDIC CONDENSATE
ROUTE TO ACID
NEUTRALIZATION TANK
CONDENSATE ACID WASTE
NEUTRALIZATION TANK (BY BOILER
MANUFACTURER)
EX. FLOOR DRAIN
NON-SLAM CHECK
VALVE
BOILER CIRC. PUMP
3/4" DRAIN COCK W/ THREADED HOSE CONN. AND
CAP (TYP.)
BLADDER
EXPANSION
TANK
PRESSURE
GAUGE
B&G #87 AIR
VENT OR
EQUAL
HWS TEMP. SENSOR BY
TEMPERATURE CONTROLS
CONTRACTOR. MOUNT IN
THERMOWELL.
TAP OFF
SIDE
CIRCUIT SETTER BALANCING
VALVE
DIRT LEG (TYP.)
TO FLOOR DRAIN
BOILER FLOW SWITCH. MOUNT IN
PIPE WELL
LOCAL VENT W/
GOOSENECK
UNION (TYP.) 1 1/4"G SITE
GLASS
CHECK
VALVE
VENT STACK
THERMOMETER (TYP.)
COMBUSTION AIR INTAKE
BUTTERFLY
ISOLATION VALVE
(TYP.)
PLUG VALVE
STRAINER
HWR TO
SYSTEM
B-2
EXTEND TO FLOOR DRAIN
FS FS
HW
SHW
R
HWR HWS
HWSHWS
T
HWR
HWS BP-2
HWS
TO AHU
COIL
TO VAVs
BP-3
BOILER CIRC. PUMP
FLOOR MOUNTED BLADDER
EXPANSION TANK WITH SHOT
FEEDER AND AIR SEPARATOR
AND MAKEUP WATER
CONNECTION.
3 WAY VALVE
HWR
HWS
SEE SHEET 1
REPAIR HVAC
H7, H9, B-32, B-127
VGLZ 212011
24 MAR 2021
IF REQ'D PAD MOUNTED ON FLOOR
T
HWR TEMP. SENSOR BY
TEMPERATURE CONTROLS
CONTRACTOR. MOUNT IN
THERMOWELL.
AutoCAD SHX Text 127th WING/CIVIL ENGINEER
AutoCAD SHX Text
SELFRIDGE AIR
AutoCAD SHX Text
NATIONAL GUARD
AutoCAD SHX Text
BASE, MICHIGAN
AutoCAD SHX Text
1. THE PLAN AND UNDERGROUND THE PLAN AND UNDERGROUND UTILITIES SHOWN HAVE BEEN LOCATED FROM FIELD SURVEY INFORMATION AND EXISTING DRAWINGS. THE GOVERNMENT MAKES NO GUARANTEES THAT THE UNDERGROUND UTILITIES SHOWN COMPRISE ALL SUCH UTILITIES IN THE AREA, EITHER IN-SERVICE OR ABANDONED. THE GOVERNMENT FURTHER DOES NOT WARRANT THAT THE UNDERGROUND UTILITIES SHOWN ARE IN THE EXACT LOCATION INDICATED ALTHOUGH THEY ARE LOCATED AS ACCURATELY AS POSSIBLE FROM AVAILABLE INFORMATION.
AutoCAD SHX Text NOTE: FOR INFORMATION PURPOSES ONLY. NOT FOR DESIGN OR CONSTRUCTION. FIELD VERIFY DIMENSIONS PRIOR TO DESIGN AND PRIOR TO CONSTRUCTION.
AutoCAD SHX Text
REDUCER
AutoCAD SHX Text
NEEDLE VALVE
AutoCAD SHX Text P
AutoCAD SHX Text P
AutoCAD SHX Text
PRESSURE GAUGE
AutoCAD SHX Text
PUMP
AutoCAD SHX Text
PUMP
AutoCAD SHX Text
REDUCER
PUMP
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SHEET OF
Engineer/Consultants
Sheet Title
NEW HEATING
HW BOILERS
PIPING &
CONTROLS
3 3
REVISIONS:
Project Number:
File:
Drawn By:
Designed By:
Checked By: T. Resh
T. Resh
H. Bauzon
Mark Date Description
PROJECT
Scale: NOT TO SCALE
Date:
NOTES:
115VGRD
DDC CONTROLLER & PANEL WITH OPERATOR INTERFACE
CSR
BU
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AC
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ON
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ILU
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BOILER CP
BU
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AC
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EM
EN
AB
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CO
MM
ON
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SUN
SHIELD
OA TEMP.
REFERENCE
SENSOR
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LO
BA
L O
A
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MP
RE
FE
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NC
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SYSTEM DIAGRAM AND SEQUENCE BASED ON LOCHINVAR, KBN SERIES MFR TECHNOLOGY
B-2
MEMBER 1 BP-2
BP-2
NORTH FACE OF
BUILDING EXTERIOR
LOOP TEMP. RANGE 120°F-180°F BASED
ON RESET - 60°F-0°F AMBIENT
TO BLDG.
SECONDARY LOOP
FROM BLDG.
SECONDARY LOOP
VFD
ST
AT
US
AL
AR
M
HS
T
EM
P
HR
T
EM
P
SEQUENCE OF OPERATIONS:
DI
FF
ER
EN
TI
AL
PR
ES
SU
RE
BP-1
BOILER AND BOILER FUEL SYSTEMS EMERGENCY STOP:
THE FOLLOWING SHALL BE PROVIDED BY AND COORDINATED BY THE TEMPERATURE
CONTROLS CONTRACTOR.
THE FOLLOWING SEQUENCE SHALL BE INITIATED UPON ACTIVATION OF MAIN BOILER PLANT
EMERGENCY STOP CONTROL SWITCHES TO BE LOCATED AT THE EGRESS DOORWAYS TO THE
MECH/BOILER ROOM PER CODE. THESE SWITCHES SHALL BE PUSH-PULL, MAINTAINED
CONTACT TYPE, WITH MUSHROOM HEADS, AS NORMALLY PROVIDED FOR THIS SERVICE.
UPON ACTIVATION OF THE E-STOP SWITCH, THE BOILERS SHALL BE COMMANDED OFF AND THE
DDC SHALL CONTINUE TO RUN THE ACTIVE PRIMARY AND SECONDARY HEATING PUMPS UNTIL
THE SECONDARY HEATING LOOP SUPPLY TEMPERATURE DROPS 20°F (ADJ) BELOW LOOP
TEMPERATURE SETPOINT IN ORDER TO DISSIPATE THE RESIDUAL HEAT IN THE FORMERLY
ACTIVE BOILERS AT WHICH POINT THE PUMPS WILL BE COMMANDED OFF.
POWERED OPEN/ NORMALLY CLOSED SAFETY SHUT-OFF SOLENOID VALVE LOCATED ON THE
MAIN NATURAL GAS BOILER FUEL SOURCE SHALL BE INTERLOCKED TO CLOSE WHEN THE
EMERGENCY STOP IS ACTIVATED.
PROVIDE AN INTERLOCK TO THE LOCAL FIRE ALARM SYSTEM PANEL IF PRESENT TO ACHIEVE THE
SAME SEQUENCE AS DESCRIBED ABOVE UPON FIRE ALARM STATUS. COORDINATE WITH THE
FIRE ALARM SYSTEM VENDOR/CONTRACTOR.
ST
AT
US
AL
AR
M
ST
AR
T/
ST
OP
HIGH-EFFICIENCY HEATING HOT WATER
BOILERS CONTROL DIAGRAM
NOT TO SCALE
ST
AR
T/S
TO
P
HR
HR
HR
DI DI DI DI DI DIDO DO AI AI AI AI
M
B-1
LEADER
BOILER CP
CSR
M
CSR
M
T
T
TT
F
HS
HS
T
CSR
M
DI DO
BOILERS & HEATING PUMPS:
BOILER SYSTEM RUN CONDITIONS:
THE BOILER SYSTEM SHALL BE ENABLED TO RUN WHENEVER:
· A DEFINABLE NUMBER OF HOT WATER COILS NEED HEATING.
· RUNS YEAR ROUND.
TO PREVENT SHORT CYCLING, THE BOILER SYSTEM SHALL RUN FOR AND BE OFF FOR MINIMUM ADJUSTABLE TIMES
(BOTH USER DEFINABLE), UNLESS SHUTDOWN ON SAFETIES OR OUTSIDE AIR CONDITIONS.
THE BOILER SHALL RUN SUBJECT TO ITS OWN INTERNAL SAFETIES AND CONTROLS.
THE BOILER SYSTEM SHALL ALSO RUN FOR FREEZE PROTECTION WHENEVER THE OUTSIDE AIR TEMPERATURE IS
LESS THAN 38°F (ADJ.).
ALARMS SHALL BE PROVIDED AS FOLLOWS:
· FAILURE: COMMANDED ON, BUT THE STATUS IS OFF.
· RUNNING IN HAND: COMMANDED OFF, BUT THE STATUS IS ON.
BOILER LEAD/LAG OPERATION:
THE BOILER OPERATING CONTROLLERS TO BE SET AT 190°F TO OPERATE AS A SECONDARY HIGH LIMIT.
THE TWO BOILERS SHALL OPERATE IN A LEAD/LAG FASHION ALONG WITH THEIR RESPECTIVE BOILER PUMPS.
· THE LEAD BOILER SHALL RUN FIRST.
· AS HOT WATER TEMPERATURE DROPS BELOW A LAG BOILER SETPOINT, THE LAG BOILER SHALL STAGE ON
AND RUN IN UNISON WITH THE LEAD BOILER TO MAINTAIN HOT WATER TEMPERATURE SETPOINT.
· AS HOT WATER TEMPERATURE DROPS BELOW A SECOND LAG BOILER SETPOINT (IF AVAILABLE), THE SECOND
LAG BOILER SHALL STAGE ON AND RUN IN UNISON WITH THE LEAD & LAG BOILER TO MAINTAIN HOT WATER
TEMPERATURE SETPOINT.
· AS HOT WATER TEMPERATURE RISES BACK TO 20°F (ADJ.) ABOVE SETPOINT, THE LAG BOILER SHALL STAGE
OFF.
· AS HOT WATER TEMPERATURE RISES BACK TO 10°F (ADJ.) ABOVE SETPOINT, THE LAG BOILER SHALL STAGE
OFF.
THE DESIGNATED LEAD BOILER SHALL ROTATE UPON ONE OF THE FOLLOWING CONDITIONS: (USER SELECTABLE):
· MANUALLY THROUGH A SOFTWARE SWITCH
· IF BOILER RUNTIME (ADJ.) IS EXCEEDED
· DAILY
· WEEKLY
· MONTHLY
ALARMS SHALL BE PROVIDED AS FOLLOWS:
· LOW WATER TEMPERATURE
· BOILER FAILURE
HOT WATER SUPPLY TEMPERATURE SETPOINT RESET: ( BY TWO METHODS)
1) THE HOT WATER SUPPLY TEMPERATURE SETPOINT SHALL RESET USING A TRIM AND
RESPOND ALGORITHM BASED ON HEATING REQUIREMENTS. AS THE FACILITY'S DEMAND FOR
HEATING GOES BEYOND A USER DEFINABLE AMOUNT OF REQUESTS, THE SETPOINT SHALL
RESET TO A HIGHER VALUE (ADJ.). ONCE THE HEATING REQUESTS ARE SATISFIED THE
SETPOINT SHALL GRADUALLY LOWER OVER TIME TO REDUCE HEATING ENERGY USE.
2) OUTSIDE AIR RESET. (USER SELECTABLE)
PRIMARY HOT WATER TEMPERATURE MONITORING:
THE FOLLOWING TEMPERATURES SHALL BE MONITORED:
· PRIMARY HOT WATER SUPPLY.
· PRIMARY HOT WATER RETURN.
ALARMS SHALL BE PROVIDED AS FOLLOWS:
· HIGH PRIMARY HOT WATER SUPPLY TEMP: IF GREATER THAN 200°F (ADJ.).
· LOW PRIMARY HOT WATER SUPPLY TEMP: IF LESS THAN 130°F (ADJ.).
AHU COIL - HOT WATER LOOP: ( IF REQ'D)
HOT WATER VALVE:
THE HOT WATER VALVE SHALL MODULATE TO MAINTAIN THE DISCHARGE AIR SETPOINT AS
MEASURED BY THE TEMPERATURE SENSOR.
P-3
BP-1
SECONDARY HOT WATER PUMPS
HOT WATER PUMPS: THE HOT WATER PUMPS ARE VARIABLE SPEED PUMPS. EACH PUMP MAY BE
STARTED AND STOPPED MANUALLY AT ITS ASSOCIATED MOTOR STARTER BY PLACING THE
HAND-OFF-AUTO SWITCH IN THE HAND POSITION. EACH PUMP MAY ALSO BE STARTED AND STOPPED
AUTOMATICALLY BY THE DDC SYSTEM WHEN THE HAND-OFF-AUTO SWITCH IS IN THE AUTO
POSITION.
ONE HOT WATER PUMP SHALL OPERATE CONTINUOUSLY. THE PUMPS SHALL OPERATE IN A
LEAD-LAG MANNER AS PROGRAMMED THROUGH THE DDC SYSTEM TO ENSURE EQUAL RUN-TIME ON
EACH PUMP. STATUS OF EACH PUMP SHALL BE MONITORED BY THE DDC SYSTEM THROUGH EACH
PUMPS ASSOCIATED CURRENT SENSOR. IF THE OPERATING PUMP SHOULD FAIL AS INDICATED BY
THE CURRENT SENSOR, THE DDC SYSTEM WILL ISSUE A STOP COMMAND TO THAT PUMP AND A
START COMMAND TO THE PUMP ACTING AS STAND-BY. THE DDC SYSTEM WILL ALSO INITIATE A
PUMP FAILURE ALARM. LEAD PUMP SHALL MODULATE TO MAINTAIN A DIFFERENTIAL PRESSURE
SETPOINT OF 7 PSI ( ADJUSTABLE)
TO VAV BOXES
TO AHU ( IF REQ'D)
1 HEATING COIL
DI DO
CSR
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ST
AT
US
AL
AR
M
ST
AR
T/S
TO
P
DO AO
SE
TP
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NT
ON
/O
FF
VFD
DI DO AO
SE
TP
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ON
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MOTOR
STARTER
VFD
VFD
AO
SE
TP
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NT
AO
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TP
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NT
REPAIR HVAC
H7, H9, B-32, B-127
VGLZ 212011
24 MAR 2021
AutoCAD SHX Text 127th WING/CIVIL ENGINEER
AutoCAD SHX Text
SELFRIDGE AIR
AutoCAD SHX Text
NATIONAL GUARD
AutoCAD SHX Text
BASE, MICHIGAN
AutoCAD SHX Text
1. THE PLAN AND UNDERGROUND THE PLAN AND UNDERGROUND UTILITIES SHOWN HAVE BEEN LOCATED FROM FIELD SURVEY INFORMATION AND EXISTING DRAWINGS. THE GOVERNMENT MAKES NO GUARANTEES THAT THE UNDERGROUND UTILITIES SHOWN COMPRISE ALL SUCH UTILITIES IN THE AREA, EITHER IN-SERVICE OR ABANDONED. THE GOVERNMENT FURTHER DOES NOT WARRANT THAT THE UNDERGROUND UTILITIES SHOWN ARE IN THE EXACT LOCATION INDICATED ALTHOUGH THEY ARE LOCATED AS ACCURATELY AS POSSIBLE FROM AVAILABLE INFORMATION.
NOTE: FOR INFORMATION PURPOSES ONLY. NOT FOR DESIGN OR CONSTRUCTION. FIELD VERIFY DIMENSIONS PRIOR TO DESIGN AND PRIOR TO CONSTRUCTION.
| Sheets and Views |
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| VGLZ 212011 Repair HVAC H7 H9 B32 B127-S2 of 3 |
| VGLZ 212011 Repair HVAC H7 H9 B32 B127-S3 of 3 |
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