ACU_Mechanical_Reference_Drawings.pdf

A 6/3/16 FOR REVIEW

90% PROCUREMENT PACKAGE - NOT FOR CONSTRUCTION

00 4' 8'

00 4' 8'

RETURN AIR

FROM HALLWAY

CHWR

CHWS

DESIGN AIR FLOW

PRE-COOLING CAPACITY - WATER

ATMOSPHERIC PRESSURE

COOLING CAPACITY

AIR TEMPERATURE

FLOW RATE REQUIRED

WATER PRESSURE DROP

AIR PRESSURE DROP

DESIGN FACE VELOCITY

TOTAL

SENSIBLE

ENTERING

LEAVING

27.9 PSIA

6,667 S.C.F.M. @14.5 PSIG TSP

1,528,600 BTU/HR

1,398,300 BTU/HR

238.8 DEG. D.B.

116.6 DEG. W.B.

47.8 DEG. D.B.

47.7 DEG. W.B.

178 G.P.M.

5.9 PSI

1.92" W.G.

508 F.P.M.

DESIGN AIR FLOW

PRE-COOLING CAPACITY - DX

ATMOSPHERIC PRESSURE

COOLING CAPACITY

AIR TEMPERATURE

REFRIGERANT TEMPERATURE

REFRIGERANT PRESSURE DROP

AIR PRESSURE DROP

DESIGN FACE VELOCITY

TOTAL

SENSIBLE

ENTERING

LEAVING

SUCTION

LIQUID

27.9 PSIA

6,667 S.C.F.M.

139,200 BTU/HR

92,600 BTU/HR

47.8 DEG. D.B.

47.7 DEG. W.B.

32 DEG.

90 DEG.

3.1 PSI

1.33" W.G.

508 F.P.M.

DESIGN AIR FLOW

RE-COOLING CAPACITY - DX

ATMOSPHERIC PRESSURE

COOLING CAPACITY

AIR TEMPERATURE

REFRIGERANT PRESSURE DROP

AIR PRESSURE DROP

DESIGN FACE VELOCITY

TOTAL

SENSIBLE

27.9 PSIA

6,667 S.C.F.M.

96,200 BTU/HR

74,400 BTU/HR

35.0 DEG. D.B.

34.8 DEG. W.B.

24.7 DEG. D.B.

24.7 DEG. W.B.

5.6 PSI

0.88" W.G.

508.9 F.P.M.

REFRIGERANT TEMPERATURE

SUCTION

LIQUID

20 DEG.

90 DEG.

ENTERING

LEAVING

35.0 DEG. D.B.

34.8 DEG. W.B.

TOTAL HEAT OF REJECTION

CONDENSING CAPACITY - WATER

CONDENSING TEMPERATURE

WATER TEMPERATURE

WATER PRESSURE DROP

FLOW RATE

ENTERING

LEAVING

105.0 DEG.

331,100 BTU/HR

80 DEG.

95 DEG.

3.6 PSI

60 G.P.M.

DESIGN AIR FLOW

SUPPLY FAN DATA

ATMOSPHERIC PRESSURE 27.9 PSIA

6,667 S.C.F.M.

500 HP

460 / 3 / 60

HP

VOLT / PHASE / HERTZ

R.P.M.

GENERAL NOTES:

UNIT CONSTRUCTION SECTION

BASE FRAME- 2" X 6" X 11 GA STRUCTURAL STEEL TUBE, ELECTRICALLY

WELDED

LIFTING LUGS- BOLT DOWN TYPE, FIXED LUGS AROUND UNIT PERIMETER

WITH REMOVABLE LUGS ON DEMOUNT PLANES

UPPER FRAME- 1” X 2” X 16 GA STRUCTURAL STEEL TRIBE,

ELECTRICALLY WELDED

CABINET- FLOOR: 16 GAUGE BRIGHT SPANGLED G90 GALVANIZED STEEL

FLOOR SHEET, 20 GAUGE BRIGHT SPANGLED G90 GALVANIZED STEEL

SUB-FLOOR

WALLS: 18 GAUGE PRE-COATED G90 GALVANIZED STEEL EXTERIOR

ROOFS: 18 GAUGE PRE-COATED G90 GALVANIZED STEEL EXTERIOR

INSULATION- 1” X 1-1/2 LB, DUCT LINER GLUED IN PLACE

PAINT- FRAME: AIR DRIED DARK GRAY EPOXY FINISH

FLOOR: G90 BRIGHT SPANGLED GALVANIZED STEEL USED THROUGHOUT

INTERIOR (WALLS AND ROOF): NONE REQUIRED

EXTERIOR: BAKED DARK GRAY ZINC-RICH EPOXY PRIMER WITH "COLOR

TO MATCH COLOR SHIP" ALKYD ENAMEL TOP-COAT

ACCESS DOORS- PRE-COASTED GALVANIZED STEEL, DOUBLE WALL

CONSTRUCTION, 1” X 1-1/2 LB. INSULATION, WITH FULL HEIGHT

STAINLESS STEEL HINGES AND OMEGA BULB TYPE DOOR GASKET

DOOR LATCHES- VENTLOK 310 ON ALL DOORS

PROVIDE REMOTE MONITORING OF BEARING TEMPERATURES AND

EXCESSIVE VIBRATION.

ENTERING

LEAVING

45 DEG.

59.2 DEG. W.B.

CHILLED WATER

ASL 2500 FT

75 DB/60 WB

F I N

A L

D X

C

O I L

C H

W

C

O I L

CHWS WATER

COOLED

CONDENSING

UNIT

AHU HOUSING

FAN COIL UNIT

P R

E C

O O

L

D X

C

O I L

EXISTING ACU

CHR

CWS

CHWR

CWR

CWS

REFRIGERANT

PIPING

P.O.C.

P.O.C.

MD

MD

4"

MATCH EXISTING MATERIAL

AND SIZE

MD

NEW ACU

CONCEPT

HIGH PRESSURE

RATED MOTORIZED

DAMPERS TO

MATCH EXISTING

(TYP 4)

MD

NOTES:

1. THE DDC CONTROL SYSTEM SHALL PROVIDE MEANS OF ENERGIZING

ANY ONE OF THE ACU AT A TIME. THE RESPECTIVE MOTORIZED

DAMPERS AND VALVES SHALL OPEN OR CLOSE AND BE PROVEN,

PRIOR TO START OF THE ACU, BASED ON WHICH UNIT IS ENERGIZED

AT THE CONTROL PANEL. THE GRAPHIC SHALL BE PROVIDED ON THE

REMOTE WORK STATION.

2. THE UNIT SHALL BE MODULATING TYPE CAPABLE OF PROVIDING AIR

AT THE FOLLOWING:

- AIR TEMP 25°F TO 65°F (FULL RANGE)

- AIR PRESSURE 1 PSIG TO 14.5 PSIG (FULL RANGE)

3. ALL SETPOINTS SHALL BE ADJUSTABLE LOCALLY AS WELL AS AT

REMOTE WORK STATIONS.

4. THE CONTROL SYSTEM SHALL BE COMPATIBLE WITH EXISTING

SIEMENS CONTROL SYSTEM AND ALL REMOTE HOOK UP SHALL BE

PREFORMED BY SIEMENS.

5. THE INTAKE AND OUTLET MOTORIZED DAMPERS OF THE ACU SHALL

BE PROVEN OPEN PRIOR TO START OF THE ACU. THE INACTIVE

UNIT'S MD SHALL REMAIN CLOSED. THE FINAL PRESSURE

ADJUSTMENT (BEYOND VFD REDUCED SPEED CAPABILTY) SHALL BE

AUTOMATICALLY MADE BY THE DDC, BY MODULATING THE

DISCHARGE DAMPER.

ROTARY WHEEL DESICCANT

DRYER WITH HOT AIR

REGENERATION PACKAGE

(EXISTING UNIT'S DATA LISTED BELOW - TO BE VALIDATED AND USE FOR NEW ACU)

VFD

A 6/3/16 FOR REVIEW

90% PROCUREMENT PACKAGE - NOT FOR CONSTRUCTION

(FOR REFERENCE)

HEAT RECOVERY COIL

WITH EXPANSION

TANK & RELIEF VALVE

4"

CONDITIONING COMPONENTS

SUPPLY FAN ASSEM BLY- LAMSON MODEL 1 857-0-0-7-AD OR EQUAL,

SEVEN STAGE HEAVY DUTY CONSTRUCTION WITH CAST IRON INLET &

OUTLET HEADS, SEE ATTACHED LAMS ON SUBMITTAL (6) 1/2” THICK

BASE ISOLATION PADS

SUPPLY FAN MOTOR- 500 HORSEPOWER, 460/3/60 O.D.P., 3600 R.P.M.,

PREMIUM EFFICIENCY TYPE, WITH VFD. THE BLOWER SHALL BE RATED

FOR CONTINUOUS OPERATION.

HIGH PRESSURE DUCT- ALL DUCT AND PIPING DOWNSTREAM OF

BLOWER SHALL BE CONTINUOUSLY WELDED BY AWSD 1-1 CERTIFIED

WELDERS AND PRESSURE TESTED TO 15 PSIG. THE COILS WILL BE

SITUATED SUCH THAT THE HEADERS & RETURN ENDS ARE FULLY

CONTAINED WITHIN THIS HOUSING. REMOVABLE END PANELS WILL BE

PROVIDED IN THE HOUSING SO COILS CAN SLIDE OUT FOR SERVICE AND

INSPECTION. THE ACCESS DOORS WILL BE BOLTED AND PROVIDED WITH

GASKET MATERIAL SUITABLE FOR SPECIFIED OPERATING. ALL

CONNECTIONS WILL BE 125# ANSI FLANGES MADE OF CAST IRON OR

STEEL. ALL DUCT & PIPING TO BE INSULATED WITH 3/4" ARMAFLEX

INSULATION.

UNIT HYDRONIC COOLING- FANCOIL UNIT USING BUILDING CHILLED

WATER AT 45 DEG F. WATER, 4 ROW, 10 ALUMINUM FINS, 12 GPM,

2,400 CFM, 1/4 HP

ELECTRIC HEATING COIL

HEAT RECOVERY COIL