®
Chromalox
SERVICE REFERENCE
Installation, Operation
DIVISION
SALES
4
SECTION GCH
(Supersedes PE417-2)
and
REFERENCE
PE417-3
RENEWAL PARTS IDENTIFICATION
161-025752-001
DATE
FEBRUARY, 1999
Type GCH/GCHIS Circulation Heater
(for Steam, Gas and Air Heating)
3/4" NPT
Pipe Plug
Outlet
Outlet
Temperature
Control
(when
Mounting
Lugs
specified)
2 Mtg.
Lugs Ea. - Min.
Inlet
OR
Inlet
K.O. for Conduit
Terminal
Housing
K.O. for Conduit
Temperature
Control
Terminal
Housing
(when
specified)
Specifications – Design is dependent upon size of heater and customer's specifications.
GENERAL
The GCH/GCHIS series is a general purpose gas or steam circu-
lation heater intended for indoor use. This heater can be used in an
outdoor environment, if ordered with an E4 moisture-resistant termi-
nal enclosure and a weatherproof insulation jacket. Also available is
an E3 explosion-resistant terminal enclosure. Consult with
Chromalox for operating restrictions in hazardous locations. Note:
The GCHIS is intended for use in corrosive or high temperature
applications.
WARNING: Safe operating conditions depend on oper-
ating pressure, mass velocity of gas and discharge
temperature of the gas. At a given discharge gas tem-
perature, heater element sheath temperature and
pipe body temperature will increase as gas flow (mass
velocity) decreases. The standard GCH has a 750˚F
limitation on the carbon steel body and 1500˚F limit
®
on the INCOLOY sheath elements. Pressure limits
The INCOLOY® sheathed tubular elements are centered in a
steel/stainless steel heating chamber and welded to a removable
steel/stainless steel flange. The number of elements will vary,
depending upon the flange size used. Some units are fitted with baf-
fles to increase the flow. They are designated as GCHB. The assem-
bly is surrounded by insulation and a sheet metal jacket.
vary as the temperature of the vessel increases. If the
vessel temperatures exceed 250˚F or operating pres-
sure is greater than 100psi, the vessel limits must be
evaluated at the specific pressures and temperatures
expected during operation. Contact Chromalox if any
doubt exists as to temperatures that will be encoun-
tered in your specific application. At pipe body tem-
peratures above 750˚F, a stainless steel body is
required (Model GCHIS).
WARNING: Do not exceed the Pressure-Temperature
rating of the flange as listed in ANSI B16.5. Before
installing, local codes must be reviewed to verify
ASME Certification of the pressure vessel is not a
requirement. If required, contact Chromalox.
Depending upon the order specifications, the GCH/GCHIS may
or may not be factory equipped with an AR or other Chromalox ther-
mostat. Such thermostats function to control outlet temperatures and
to limit internal temperatures under abnormal flow conditions. These
controls are not fail-safe.
WARNING: Users should install adequate back-up con-
trols and safety devices with their electric heating
equipment. When heating in closed vessels where the
consequences of failure may be severe, controls and
back-up controls must be used to prevent buildup of
temperature and/or pressure. Although the safety of
the installation is the responsibility of the user,
Chromalox will be glad to make equipment recom-
mendations.
WARNING: This heater is not intended for use in haz-
ardous 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.
© 2010 Chromalox, Inc.
TYPICAL WIRING DIAGRAMS
3 Series
L1
L3
L1
L1
L3
L2
L1
L2
L2
L2
380-600V, 1Ø, SERIES
208-600V, 3ØΔ
208-600V, 3Ø Y
L1
208-600V, 1Ø
6 SERIES
L1
L1
L2
L1
L1
L1
L2
L2
L2
L3
L2
L3
L3
L2
L3
208-240V, 3Ø, PARALLEL Δ
240V, 1Ø (15 kW Max)
208-230V, 1Ø (12 kW Max)
208-600V, 3Ø Y
2 CIRCUITS
380-600V, 3Ø, SERIES Δ
380-600V, 1Ø, SERIES
12 Series
L1
L1
L3
L3
L1
L2
L2
Figure 13
L2
380-600V, 1Ø PARALLEL
208-600V, 3Ø, PARALLEL Δ
380-600V, 3Ø, SERIES Δ
18 Series
1L1
L3
L1
3L2
L1
L2
1L2
1L3
3L3
L1
L2
3L1
2L3
L3
2L1
2L2
L2
380-600V, 3Ø, SERIES Δ
380-600V, 1Ø, PARALLEL
208-600V, 3Ø, PARALLEL Δ
208-600V, 3Ø, PARALLEL Δ, 3 CIRCUITS
27 Series
36 Series
2L2
2L3
3L1
3L2
1L1
1L2
2L1
1L1
3L3
1L2
1L3
1L3
2L1
2L2
2L3
3L1
3L3
3L2
208-600V, 3ØΔ, 3 CIRCUITS
208-600V, 3ØΔ, 3 CIRCUITS
36 Series
45 Series
1L1
1L2
1L1
1L2
2L1
1L3
1L3
2L2
2L3
2L1
3L1
3L2
2L2
2L3
3L1
3L3
3L2
3L3
380-600V, 3Ø, 3 CIRCUITS, SERIES Δ
208-600V, 3ØΔ, 3 CIRCUITS
RENEWAL PARTS IDENTIFICATION
Contact Chromalox Product Service for a list of the necessary replacement parts of your specific heater.
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
2150 N. RULON WHITE BLVD., OGDEN, UT 84404
99 - 042
TA - P9 - EF
Litho in U.S.A.
Phone: 1-800-368-2493
|