Carrier 16JB Bedienungsanleitung PDF herunterladen (Seite 15)

Application data

Vent and drain connections

All vent and drain connections are found on the waterbox

covers. Connection size is

⁄

in. FPT.

Provide high points of the machine piping system with

vents and the low points with drains. If shutoff valves are

provided in the main water pipes near the unit, a minimum

amount of system water is lost when the heat exchangers

are drained.

It is recommended that pressure gages be provided at

points of entering and leaving water to measure pressure

drop through the heat exchanger. Gages may be installed

as shown in the table below. Pressure gages installed at the

vent and drain connections do not include nozzle pressure

losses.

Use a reliable manometer to measure pressure differen-

tial when determining water ﬂow. Regular gages are insen-

sitive and do not provide an accurate measurement of ﬂow

conditions.

NUMBER OF

PASSES

GAGE LOCATION

1,3 One gage in each waterbox

2,4 Two gages in waterbox with nozzles

Range of application

The 16JB single effect absorption chiller is designed for

standard waterchilling applications of108 to 680tons (380

to 2,392 kW) at standard ARI rating conditions.

ASME stamping

The water side of the 16JB054 (and larger) absorbers and

the 16JB061 (and larger) evaporators shall carry the ASME

Section VIII ‘‘U’’ stamp. In addition, the water side of all

16JB hot water generators shall also be stamped.

Rupture disk piping

The 16JB hot water generator is equipped with a rupture

disk. It is recommended that piping from the rupture disk

be routed to appropriate areas away from the machine in

accordance with Carrier’s written installation instructions,

the latest version of ANSI/ASHRAE-15 (American Na-

tional StandardsInstitute/American Society ofHeating, Re-

frigeration, and Air Conditioning Engineers), and any local

jurisdictional requirements that may apply.Piping should be

adequately supported and the proper ﬁttings should be pro-

vided to allow periodic inspection of the disk. Refer to

Carrier 16JB certiﬁed drawings for the exact location of the

rupture disk on the chiller.

UNIT SIZE

RUPTURE DISK

CONNECTION SIZE

16JB010-021 2 in. 150 psig (1034 kPa) RF ﬂange

16JB024-036 3 in. 150 psig (1034 kPa) RF ﬂange

16JB041-068 4 in. 150 psig (1034 kPa) RF ﬂange

LEGEND

RF — Raised Face

Service access

To perform routine maintenance, allow 3 ft (1 m) clearance

on all sidesof machine and 6 in. (150mm) above the chiller.

Tube removal space equal to the overall length of the unit

should be provided on either end of the 16JB.

MATERIAL SPECIFICATIONS

ITEM MATERIAL SPECIFICATION

SHELL:

Evaporator Steel ASTM A285

Absorber Steel ASTM A285

Condenser Steel ASTM A285

Generator Steel ASTM A285

TUBESHEET:

Evaporator Steel ASTM A285

Absorber Steel ASTM A285

Condenser Steel ASTM A285

Generator Steel ASTM A285

WATERBOX:

Evaporator Steel ASTM A285

Absorber Steel ASTM A285

Condenser Steel ASTM A285

Generator Steel ASTM A285

TUBES:

Evaporator Copper ASME SB359

Absorber Copper ASME SB75

Condenser Copper ASME SB75

Generator 90-10 CuNi

ASME SB111

Alloy 706

PIPING: Steel ASTM A53

LEGEND

ASME — American Society of Mechanical Engineers

ASTM — American Society for Testing and Materials

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