Chromalox PE419-5 User Manual

Chromalox

®

DIVISION 4 SECTION

GCH-GCHIS

SALES

REFERENCE

DATE

SERVICE REFERENCE

Installation, Operation

and

RENEWAL PARTS IDENTIFICATION

PE419-5

161-027331-001

FEBRUARY, 2009

(Supersedes PE419-4)

GENERAL

© 2010 Chromalox, Inc.

GCH and GCHIS-6 Circulation Heaters

For Steam, Gas and Air Heating

Read and understand all instructions before
installing, servicing or operating product. Failure
to do so could result in personal injury or property
damage.

The GCH and GCHIS-6 series is a general-purpose gas or steam

circulation heater intended for use indoors.

The 6 INCOLOY® sheathed tubular elements are centered in a 5”
diameter heating chamber and welded to a removable flange. The
assembly is surrounded by 1-1/2” insulation and sheet metal jacket.
The GCH series has a steel flange and chamber. The GCHIS series has
stainless steel flange and chamber.

Depending upon the order specifications, the GCH-GCHIS-6 may
or may not be factory equipped with an AR or other Chromalox ther­mostat. Such thermostats function to control outlet temperatures and to
limit internal temperatures under abnormal flow conditions. These
controls do not fail safe.

The system designer is responsible for the safety
of this equipment and should install adequate
back-up controls and safety devices with their
electric heating equipment. Where the conse­quences of failure could result in personal injury or
property damage, back-up controls are essential.

Specifications — Table A

Dimensions (In.)

Model Volts Phase kW W/In

2

AB C D

GCH-60905 240 or 480 1 or 3 LL 9 23.8 41-3/4 30 25 11-3/8
GCH-61205 240 or 480 1 or 3 LL 12 23.1 48-3/4 37 25 14-7/8
GCH-62005 240 or 480 1 or 3 LL 20 23.3 60-1/4 48-1/2 25 20-5/8
GCH-62505 240 or 480 3Y 25 22.9 73-5/8 61-7/8 25 27-5/16

GCH-63005 240 or 480 3Y 30 22.7 86-5/8 74-7/8 25 33-7/8
GCHIS-6045 240 or 480 3Y 4 15 41-3/4 30 25 11-3/8
GCHIS-6085 240 or 480 3Y 8 15 48-3/4 37 25 14-7/8
GCHIS-6125 240 or 480 3Y 12 15 60-1/4 48-1/2 25 20-5/8
GCHIS-6155 240 or 480 3Y 15 15 73-5/8 61-7/8 25 27-5/16
GCHIS-6205 240 or 480 3Y 30 15 86-5/8 74-7/8 25 33-7/8

A

B

12-1/32”

C

8-3/4”

1-1/4”

8”

Mtg. Lugs

3/8-16 Tap

1-1/2” Deep

1-3/8” K.O.

For 1” Conduit

1” Pipe

Inlet

1” Pipe

Outlet

AR

Thermostat

ELECTRIC SHOCK HAZARD. Any installation involv­ing electric heaters must be performed by a quali­fied person and must be effectively grounded in
accordance with the National Electrical Code to
eliminate shock hazard.

1. Be sure line voltage matches heater voltage (on nameplate).

2. Electric wiring to heater must be installed in accordance with local

codes and the National Electrical Codes.

3. Because of the high operating temperatures expected, 250˚C wire

should be used.

4. Power controls must be used when heaters are rated 3 phase and

when the heater amperage exceeds the rating of the thermostat.

5. Refer to Wiring Diagram Table B, to properly connect the heater.

Table B — Wiring Diagrams

WIRING

240V 480V

Model 1ø 2-1ø 3ø 2-3ø 1ø 2-1ø 3ø

Fig. No. Fig. No. Fig. No. Fig. No. Fig. No. Fig. No.Fig. No.

GCH-60905 1 — 3 — 5 — 7
GCH-61205 — 2 3 — 5 — 7
GCH-62005 — 2 — 4 5 — 7
GCH-62505 — — — 4 — 6 7
GCH-63005 — — — 4 — — 7

GCHIS 4, 8

—— 8 ———9

12, 15,20 kW

INSTALLATION

ELECTRIC SHOCK HAZARD. Disconnect all power
before installing or servicing heater. Failure to do
so could result in personal injury or property dam­age. Heater must be installed by a qualified person
in accordance with the National Electrical Code,
NFPA 70

.

FREEZE HAZARD. This unit is equipped with a ther­mowell for process control or over-temperature
control. Do not allow moisture to accumulate in
thermowell. Freezing temperatures can cause
damage that may result in the heated medium
leaking into terminal enclosure.

1. Vertical mounting (axis of chamber vertical as in photo on previ-

ous page) is preferred.

2. To avoid excess temperatures at electrical wiring, mount heater

with terminal enclosure at bottom and use lower nozzle as inlet to
the circulating steam, air or gas.

3. The GCH-GCHIS-6 series of circulation heaters are provided with

mounting lugs to support the heater chamber. Refer to photo on
previous page for location of these mounting lugs.

4. Mount heaters to permit unrestrained expansion of chamber due to

temperature. This can be accomplished by using a slotted mount­ing assembly on either of the lugs.

FIRE HAZARD. Since heaters are capable of devel­oping high temperatures, extreme care should be
taken to:

A. Provide minimum of 6” spacing from a chamber

and related piping to nearest combustible material.

B. Avoid operation of heater near combustible fluids

or in combustible vapor or gas laden atmosphere.

5. Provide adequate space at terminal end to permit withdrawal of the

heater from chamber should servicing be required.

6. If two or more heaters are needed to provide the needed heating

capacity, arrange them for series gas or vapor flow.

EXPLOSION HAZARD. When heating in closed vessels,
controls and back-up controls must be used to regu­late build-up of temperature and/or pressure.

7. A pressure relief valve should be provided by customer at outlet

of vessel. There should be no other valving between vessel and

LINE

CONTACTOR

THERMOSTAT

120V, 240V

Figure 1 – GCH6

240V, 1ø

LINE

CONTACTORS

THERMOSTAT

120V or
240V

Figure 2 – GCH6

240V, 2-1ø

CONTACTOR

THERMOSTAT

120V, 240V

Figure 3 – GCH6

240V, 3ø

L1
L2
L3

CONTACTORS

THERMOSTAT

120V

or 240V

Figure 4 – GCH6

240V, 2-3ø

1L1
1L2
1L3

2L1
2L2
2L3

CONTACTORS

THERMOSTAT

120V or 240V

Figure 5 – GCH6

480V, 1ø

LINE

CONTACTORS

THERMOSTAT

120V or

240V

Figure 6 – GCH6

480V, 2-1ø

LINE