M8_(rev1)_0002.pdf
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- Attached to
- RELOCATE CHILLED WATER PUMP
- Solicitation number
- 140P8225B0002
About this file
This document is a Modified Chilled Water Schematic diagram for a chilled water pump relocation project at the Pearl Harbor National Park, Theater Building. The technical drawing details a complex piping system with multiple components including an expansion tank, air separator, chemical feeder, pressure regulators, valves, and control switches. The schematic outlines the sequence of operations for the chiller water pump, indicating work to be performed in existing chiller and pump enclosures, with specific points of connection and removal in the theater basement and underground conduits. The diagram includes a legend explaining various valve and control symbols, and provides technical specifications for connecting new and existing chilled water supply and return lines, with provisions for temporary bypass and system reconfiguration.
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Text version
HS
HOA
M8
MODIFIED CHILLED WATER
SCHEMATIC AND DETAILS
T
(E) CH-1
AIR
SEPARATOR
TANK
EXPANSION
TANK
(E) CHWS & (E) CHWR UP
TO EXST AHUS AND FCUS
3" CHWR
P
CHWP-1
P
P
PP
(E) 3" CHWR
(E) 3" CHWS
LEGEND
P
BALL OR GATE VALVE
BUTTERFLY VALVE
CHECK VALVE
PRESS REGULATOR
FLEX CONNECTOR
PRESS GAUGE
STRAINER
HAND SWITCH
HAND-OFF-AUTO
POINT OF CONNECTION
POINT OF REMOVAL
HS
HOA
SEQUENCE OF OPERATION - CHILLER WATER PUMP
1. EXISTING CHILLED WATER PUMP CONTROL SEQUENCE REMAINS
UNCHANGED. NEW CHW PUMP SHALL BE CONNECTED TO THE
EXISTING TIME CLOCK. EXISTING TIME CLOCK STARTS THE CHW PUMP
AND ALL AIR HANDLING UNITS IN THE THEATER BUILDING.
2. NEW CHW PUMP CAN BE STARTED MANUALLY VIA AN EXISTING H-O-A
SWITCH LOCATED IN THE PROJECTION ROOM AT THE THEATER BLDG.
3. EXISTING CHILLER CONTROL REMAINS UNCHANGED:
A. THE EXISTING CHILLER STARTS AFTER A TIME DELAY AND UPON
VERIFICATION OF CHW FLOW.
B. THE CHILLER CAN BE MANUALLY STARTED VIA AN EXISTING
INDIVIDUAL H-O-A SWITCH LOCATED IN THE PROJECTION ROOM AT
THE THEATER BLDG.
5. EXISTING CONTROLS FOR AIR HANDLING UNITS REMAIN UNCHANGED:
A. EXISTING AIR HANDLING UNITS CAN BE MANUALLY STARTED VIA
EXISTING INDIVIDUAL H-O-A SWITCHES LOCATED IN THE
PROJECTION ROOM AT THE THEATER BLDG.
POC
POR
NEW CHWR PIPING TO CLOSE LOOP
FOR REMOVAL OF EXST CHWP AND
ACCESSORIES IN THEATER BASEMENT
(E) 3" CHWR
POC
(N) 3" CHWR
(E) 3" CHWS
POC
(N) 3" CHWS
WORK IN EXISTING
CHILLER ENCLOSURE
WORK IN NEW
CHWP ENCLOSURE
CHW CHEM
FEEDER
AUTOMATIC
AIR VENT
PRESSURE
GAUGE
PRESSURE
REGULATOR
MAKE-UP
WATER
(E) 1" PVC CONTROL CONDUIT
(UNDERGROUND)
(E) H-O-A SWITCH, LOCATED
IN EXISTING PROJECTION
ROOM AT THEATER BLDG
POC (UNDERGROUND)
WORK IN EXISTING
THEATER BASEMENT
POC
3" CHWS
TEMPORARY
BYPASS
T P
3" CHWR
TEMPORARY
BYPASS
DISCONNECT EXST CHW
PIPING AFTER NEW CHWP IS
OPERATIONAL. CAP BYPASS
CHW AFTER REMOVING EXST
CWHP IN THEATRE
BASEMENT
SCALE: 1/2" = 1'
MODIFIED CHILLED WATER SCHEMATIC
LICENSED
PROFESSIONAL
ENGINEER
No. 5788-M
EXST JB IN CHILLER
ENCLOSURE
(N) 3/4" CONDUIT
FOR CHWP
CONTROL
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