Pentair RAYCHEM AMC-1A, DigiTrace AMC-1A Installation Instructions Manual

AMC-1A

WARNING:

Ambient-sensing thermostAt for nonhAzArdous locAtions instAllAtion instructions

Description

The AMC-1A thermostat is designed for controlling freeze
protection heat-tracing systems in nonhazadous locations. The
thermostat responds to ambient temperature changes. The
AMC-1A 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

4.9 in (124 mm)

4.5 in (114 mm)

4.0 in (102 mm)

3.0 in (76 mm)

Adjusting
knob

R

4.0 in

(102 mm)

4.5 in

(114 mm)

5.6 in

(142 mm)

Ø.28 in (7 mm)
mounting holes (2X)

0.3 in
(9 mm)

ApprovAls

specificAtions

Enclosure NEMA 4X, polyurethane-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 Fixed fluid-filled (silicone) bulb and capillary
Sensor material 300 series stainless steel
Connection

terminals

–40°F to 160°F (–40°C to 71°C)

–40°F to 160°F (–40°C to 71°C)

temperature

±3°F (±1.7°C)

Screw terminals, 10–14 AWG (2–5 mm

2

)

Terminal

block

NPT conduit entry

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.

3⁄4 in

IndustrIal Heat tracIng solutIons EN-RaychemAMC1A-IM-H569089/15

1.2 in

(30 mm)

0.8 in

(20 mm)

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.

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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 ratings are not
exceeded.

3. Mount the unit in a position that
prevents condensation from
draining into the enclosure from

Conduit

drain

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 sun light.

setting AnD ADjusting

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

the connecting conduit (see diagram above).

Wiring

Power Supply Power Supply

GFEPD

ØØ

G

120-V supply – 120-V heating cable

N

Ø

277-V supply – 240-V heating cable

C

NO NC

208-V or 240-V supply - 240 -V heating cable

or

Control
thermostat

GCNANBN

C

GFEPD

Ø

A

B

277-V supply – 240-V heating cable

NONC

C

120-V supply – 120-V heating cable or

Ø

Ø

C

Control
thermostat

G

Power
connection

Braid

Heating
Cable

NORTH AMERICA

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

EuROPE, MIddLE EAsT, AfRICA

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

120-V or
277-V
coil

Braid

Heating

Cable A

Heating
Cable B

Heating

Cable C

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

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

AsIA PACIfIC

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

NONC

C

WWW.PENTAIRTHERMAL.COM

LATIN AMERICA

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

Pentair 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.

© 2001-2015 Pentair. PN 689375

IndustrIal Heat tracIng solutIons EN-RaychemAMC1A-IM-H569089/15

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