Pelco C421M-D User Manual

C421M-D (4/00)
HT10 Series
Liquid-Cooled Enclosure

®

3500 Pelco Way,
Clovis, CA 93612-5699
USA

In North America & Canada:
Tel [phone]
FAX [phone]

International Customers:
Tel [phone]
FAX [phone]

www.pelco.com

IMPORTANT SAFEGUARDS AND WARNINGS

Prior to installation and use of this product, the following WARNINGS should be observed.

1. Installation and servicing should only be done by qualified service personnel and conform
to all local codes.

2. Unless the unit is specifically marked as a NEMA Type 3, 3R, 3S, 4, 4X ,6 or 6P
enclosure, it is designed for indoor use only and it must not be installed where exposed to
rain and moisture.

3. Only use replacement parts recommended by Pelco.

4. After replacement/repair of this unit’s electrical components, conduct a resistance
measurement between line and exposed parts to verify the exposed parts have not been
connected to line circuitry.

5. The installation method and materials should be capable of supporting four times the
weight of the enclosure, pan/tilt, camera and lens combination.

6. Use or mount this enclosure so that it is positioned not less than 91 degrees and not
more than 180 degrees when considering 12 o’clock to be 0 degrees and 6 o’clock to be
180 degrees.

7. Only Nema 3R liquid tight conduit should be used in all outdoor applications.

The product and/or manual may bear the following marks:

This symbol indicates that danger­ous voltage constituting a risk of
electric shock is present within
this unit.

This symbol indicates that there
are important operating and main­tenance instructions in the litera­ture accompanying this unit.

Please thoroughly familiarize yourself with the information in this manual prior to installation
and operation.

CAUTION:

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

DESCRIPTION

The products in the HT10 Series are liquid-cooled enclosures designed for high temperature
applications.

The stainless steel enclosure features two separate double-walled cooling jackets that protect
the camera and lens and other sensing devices housed within the unit.

Models

HT10V High temperature enclosure with Vycor® window; window suitable in

HT10V/RC Same as the HT10V except Vycor window has an infrared reflective coating

temperatures up to 1300°F (705°C)

for environments where high levels of radiant heat are encountered; window
suitable in temperatures up to 1300°F (705°C)

IMPORTANT:

Check coolant
flow rate periodically to ensure
that sediment or deposits are
not restricting flow. This will pre­vent heat from building up in the
enclosure, or steam from devel­oping in the water jacket.

INSTALLATION

1 Mount the Enclosure

Determine the mounting location. Attach the enclosure as follows:

1. Remove the enclosure from the cradle by loosening the screw clamps on the stainless
steel straps.

2. Attach the cradle to the mounting surface (mount, pan/tilt, etc.).

3. Center the enclosure on the cradle and secure it with the stainless steel straps.

2 Connect Cooling Systems

The HT10 Series enclosure features two distinct cooling systems. One cooling jacket is
located in the body of the unit and the other is strategically placed around the viewing window.
(Refer to Figure 1.)

To make cooling system connections:

1. Use hoses with a 3/8-inch NPT fitting (not supplied).

2. Connect the enclosure to a coolant reservoir. A shut-off valve should be installed in the
input line to regulate coolant flow.

3. Make input connections.
Input hoses are connected
to the IN line fittings
located at the top and
rear of the enclosure.

4. Make output connections.
Output hoses are con­nected to the OUT line
fittings located at the top
and rear of the enclosure.
The output line should not
be restricted, so that the 35
psi working pressure is not
exceeded. The liquid flow
rate is determined by the
temperature of the coolant
as it enters the enclosure
and the temperature gradient
in which the enclosure is
installed.

*SHUT OFF
VALV ES

COOLING
JACKET

*RESERVOIR

COOLING
JACKET

*LOCATION OF EQUIPMENT IS NOT INTENDED FOR ANY SPECIFIC APPLICATION.

NOTE:

GENERAL DIAGRAM - PUMP, INSULATION, CHECK VALVES AND TYPE OF

PLUMBING NOT SHOWN.

Figure 1. Coolant Hook-Up, General Installation

*COOLING TANK

3 Install Camera

To mount the camera on the sled:

1. Remove the rear plate of the enclosure.

2. Remove the camera sled:
a. Loosen the 1/4-20 hex socket head screw with the 3/16-inch Allen wrench (supplied).
b. Slide the sled out of the enclosure.

3. Mount the camera and lens onto the sled:
a. Extend the lens to the maximum length before positioning the camera and lens.
b. Position the camera and lens so that they do not extend beyond the track.
c. Fasten the camera and lens to the sled with the two 1/4-20 x .375-inch Phillips

screws (supplied).

4. Reinstall the camera sled.

5. Feed the cable(s) through the feedthrough hole in the rear plate of the enclosure. Make
all equipment connections; refer to the installation manuals supplied with the equipment.