Chromalox NWH-1812515 설치, 운영 및 갱신 부품 식별
{카테고리_이름} Chromalox NWH-1812515에 대한 설치, 운영 및 갱신 부품 식별을 온라인으로 검색하거나 PDF를 다운로드하세요. Chromalox NWH-1812515 4 페이지. Circulation heater for water heating
페이지 인쇄RENEWAL PARTS IDENTIFICATION
2 1/2" Pipe
Outlet
3/4-10 Tap
B
Mounting
Lugs
2 1/2" Pipe
Inlet
WARNING: This heater is not intended for use in
hazardous atmospheres where flammable vapors,
gases, liquids or other combustible atmospheres
are present as defined in the National Electrical
Code. Failure to comply can result in explosion or
fire.
The NWH-18 series is a general-purpose water or water-based
solution circulation heater intended for use indoors. It is designed
for 150 psig at 550°F per ANSI standards.
The 18 copper-sheathed tubular elements are centered in a 8"
diameter galvanized steel heating chamber and welded to a
removable galvanized steel flange. The assembly is surrounded
by 3" insulation and sheet metal jacket.
WARNING: Hazard of Shock. Disconnect all power
before installing heater.
1. Vertical Mounting (Preferred) —
When the heater is vertically mounted, the terminal housing
will be at the top of the heater. The water inlet pipe will be
located on the side near the bottom of the heater and the outlet
pipe at the top.
The axis of the chamber will be in a vertical position as in the
photo above and as in Figure A.
Note: A drain pipe located at the bottom of the heater should
be provided and enough room left, when mounting heater, to
allow draining the heater.
© 2010 Chromalox, Inc.
Installation, Operation
and
151/8"
A
C
Type NWH-18 Circulation
Heater for Water Heating
(150 Pound Construction)
Specifications — Table A
Model
Volts
NWH-185015
240 or 480
NWH-187515
240 or 480
NWH-1810015
240 or 480
NWH-1812515
240 or 480
NWH-1815015
240 or 480
NWH-1817515
240 or 480
NWH-1820015
240 or 480
GENERAL
Depending upon the order specifications, the NWH-18 may or
may not be factory equipped with an AR or other Chromalox
thermostat. Such thermostats function to control outlet tempera-
tures and to limit internal temperatures under abnormal flow con-
ditions. These controls do not fail-safe.
WARNING: Users should install adequate back-up
controls and safety devices with their electric
heating equipment. Where the consequences of
failure may be severe, back-up controls are essen-
tial. Although the safety of the installation is the
responsibility of the user, Chromalox will be glad
to make equipment recommendations.
INSTALLATION
Correct
4
NWH
(Supersedes PE424)
161-058005-001
APRIL, 1999
Dimensions (In.)
Phase
kW
W/In
2
A
3
50
42
45
7
/
8
7
3
75
45
53
/
8
3
100
49
60
7
/
8
1
3
125
50
68
/
2
3
150
50
78
3
175
50
87
3
200
50
97
Incorrect
Figure A — Vertical Mounting
PE424-1
B
C
24
11
/
21
3
/
16
16
11
3
32
/
29
/
16
16
39
11
/
36
3
/
16
16
5
13
47
/
43
/
16
16
13
5
56
/
53
/
16
16
13
5
65
/
62
/
16
16
13
5
75
/
72
/
16
16