Pentair DigiTrace AMC-1H, Raychem AMC-1H Installation Instructions Manual

AMC-1H

AMBIENT-SENSING THERMOSTAT FOR HAZARDOUS LOCATIONS INSTALLATION INSTRUCTIONS

DESCRIPTION

The AMC-1H thermostat is designed for controlling freeze­protection heat-tracing circuits in hazardous locations. The
thermostat responds to ambient temperature changes. The
AMC-1H can be used to control a heat-tracing circuit directly (see
Figure 1 on back page) or it can be used to control a contactor coil
(see Figure 2).

8.0 in

(202 mm)

Removable

knob cover

Terminal

block

4.5 in (114 mm)

4.0 in (102 mm)

4.0 w (102 mm)

R

(102 mm)

Adjusting
knob

Ø.28 in (7 mm)
mounting
hole (4X)

4.0 in

4.5 in

(114 mm)

1.2 in (30 mm)

0.3 in (9 mm)

2.0 in

(50 mm)

6.6 in

(168 mm)

APPROVALS

Hazardous locations

Class I, Div. 1 and 2, Groups B, C, D
Class II, Div. 1 and 2, Groups E, F, G
Class III

SPECIFICATIONS

Enclosure NEMA 4, 7, 9, lacquer-coated cast-aluminum

housing, stainless-steel hardware
Entries One 3/4 in. NPT conduit hub
Set point range 15°F to 140°F (–9°C to 60°C)
Sensor exposure

limits
Housing exposure

limits
Switch SPDT
Electrical rating 22 A at 125/250/480 Vac
Accuracy ±6°F (±3.3°C)
Deadband 2°F to 12°F (1.1°C to 6.7°C) above actuation

Set point
repeatability

Sensor type Fluid-filled (silicone) bulb and 9 ft (2.7 m)

Sensor material 300 series stainless steel
Connection

terminals

–40°F to 160°F (–40°C to 71°C)

–40°F to 140°F (–40°C to 60°C)

temperature

±3°F (±1.7°C)

capillary

Screw terminals, 10–14 AWG (2–5 mm

2

)

3⁄4 in NPT

conduit entry

WARNING:

This component is an electrical device. It must be installed
correctly to ensure proper operation and to prevent shock or
fire. Read these important warnings and carefully follow all the
installation instructions.

THERMAL MANAGEMENT SOLUTIONS EN-DigiTraceAMC1H-IM-H5691101/13

Component approvals and performance are based on the use of
specified parts only. Do not use substitute parts or vinyl electrical
tape to make connections.

1 / 2

INSTALLING THE THERMOSTAT

1. Verify that the thermostat
is suitable for the area
where it is to be installed.

2. Check the line voltage and
the heat-tracing load to
ensure that the thermostat

Conduit
drain

ratings are not exceeded.

3. Mount the unit in a position that prevents condensation from
draining into the enclosure from the connecting conduit (see
diagram above).

WIRING

POSITIONING

4. Mount ambient-sensing units in the area exposed to the
coldest temperature and the most wind. Do not mount on the

side of a warm building or in a location that is exposed to
warm air currents or direct sunlight.

SETTING AND ADJUSTING

5. Set the thermostat dial to the desired temperature and finish
wiring.

Braid

GFEPD

or

G

N

G

208-V or 240-V supply – 240-V heater

ØØ

120-V supply – 120-V heater

Ø

277-V supply – 240-V heater

C

NO NC

Power
connection

Heating
Cable

Control
thermostat

GCNANBN

Braid

Figure 2. Controlling a contactorFigure 1. Heat-tracing control

GFEPD

C

Heating

cable A

Ø

A

Heating

cable B

Ø

B

Heating

cable C

120-V supply – 120-V heater or

Ø

C

277-V supply – 240-V heater

120-V or
277-V
coil

NONC

C

Control
thermostat

NONC

C

NORTH AMERICA

Tel: [phone]
Fax: [phone]
Tel: [phone]
Fax: [phone]
[e-mail]

Pentair, DigiTrace and AMC are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners. Pentair reserves
the right to change specifications without prior notice.

© 2001-2013 Pentair. PN174517

EUROPE, MIDDLE EAST, AFRICA

Tel: [phone]
Fax: [phone]
[e-mail]

For switching heat-tracing loads greater than 22 A
or switching multiple heat-tracing circuits.

ASIA PACIFIC

Tel: [phone]
Fax: [phone]
[e-mail]

WWW.THERMAL.PENTAIR.COM

LATIN AMERICA

Tel: [phone]
Fax: [phone]
[e-mail]

2 / 2THERMAL MANAGEMENT SOLUTIONS EN-DigiTraceAMC1H-IM-H5691101/13