Raychem E507S-LS Installation Manual

Hazardous locations

WARNING:

E507S-LS

Line-Sensing Thermostat for Hazardous Locations
Installation Instructions

DESCRIPTION

The nVent RAYCHEM E507S-LS thermostat is designed for controlling

heat-tracing systems in hazardous locations. TheE507S-LS can be
used to control heat-tracing circuits in apipe-sensing mode (see
Figure 1 on back page), to indicate low-temperature (see Figure 2) or

Pentair

high-temperature (see Figure 3) alarm conditions, or to control the coil
on a contactor (see Figure 4).

APPROVALS

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

8.0 in.

(202 mm)

Terminal

block

3⁄4 in. NPT conduit entry

4.5 in. (114 mm)

4.0 in. (102 mm)

Pentair

Adjusting knob

Removable knob cover

4.0 in. (102 mm)

4.0 in.

(102 mm)

2.0 in.

(50 mm)

Ø.28 in. (7 mm)
mounting hole
(4X)

4.5 in.

(114 mm)

6.6 in.

(168 mm)

1.2 in. (30 mm)

0.3 in. (9 mm)

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 25°F to 325°F (–4°C to 163°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 420°F (–40°C to 215°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 mm2)

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.

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.

INSTALLING THE THERMOSTAT

1. Verify that the thermostat is

suitable for the area where it is to be

Pentair

installed.

2. Check the line voltage and the

heat-tracing load to ensure that the
thermostat ratings are not exceeded.

3. Mount the unit using unistrut or the RAYCHEM universal
mounting bracket (UMB-263757) in a position that prevents

condensation from draining into the enclosure from the

connecting conduit (see diagram above).

POSITIONING THE SENSOR BULB

4. Position the bulb in the
lower quadrant of the pipe
as shown in the diagrams
to the left. Place the bulb

at least three feet from

pipe supports, valves, or
other heat sinks; protect the
capillary from kinks or bends
less than 1⁄2 inch in radius.

90

Single traced

Heating cable
Control thermostat bulb
AT-180 tape

Double traced

Heating cable
Control thermostat bulb
AT-180 tape

Conduit
drain

5. Tape the bulb firmly to the pipe with AT-180 aluminum tape,
making sure there is no air space between the bulb and pipe.
Donot overlap the bulb and heating cable with the same piece
ofAT-180 tape.

6. For metal-tank-wall sensing, use the BCK-35 bulb clamp
(purchased separately) and install the clamp per the instructions
provided. Make sure there is no air space between the tank wall
and the bulb.

For installation on plastic tanks, contact nVent at [phone].

SETTING THE THERMOSTAT

7. Set the thermostat dial to the desired temperature, then finish
wiring.

8. Complete insulating. Do not turn the system on until the bulb is
covered with thermal insulation.

9. Fill the piping or tank. Once the thermostat has begun to cycle,
check the fluid temperature with an immersed thermostat (best
for plastic systems) or an accurate temperature indicator. Adjust

the dial setting if necessary.

WIRING

GFEPD

ØØ

208-V or 240-V supply – 240-V heater

or

G

120-V supply – 120-V heater

N

Ø

277-V supply – 240-V heater

C

NO NC

Power

G

connection

Thermostat bulb

Braid

(see "Positioning"

instructions above

for mounting details)

Heating
Cable

Figure 1. Pipe-sensing

North America

Tel [phone]
Fax [phone]
[email protected]

GFEPD

208-V or 240-V supply

ØØ

or

ØGN

120-V supply – 120-V heater
277-V supply – 240-V heater

Control
thermostat

Alarm

for mounting details)

Figure 2. Low-temperature alarm

Europe, Middle East, Africa

Tel [phone]
Fax [phone]
[email protected]

C

NO NC

Thermostat bulb

(see "Positioning"

instructions above

Control
thermostat

GFEPD

208-V or 240-V supply

ØØ

or

ØGN

120-V supply – 120-V heater
277-V supply – 240-V heater

C

NO NC

Alarm

Thermostat bulb

(see "Positioning"

instructions above

for mounting details)

Figure 3. High-temperature alarm

Asia Pacific

Tel [phone]
Fax [phone]
[email protected]

Control
thermostat

GCNANBN

Braid

C

Heating
cable A

GFEPD

Heating
cable B

A

120- V supply – 120-V heater or

Ø

ØBØ

C

277-V supply – 240-V heater

120-V or
277-V
coil

Heating
cable C

NONC

C

NONC

C

Thermostat bulb
(see "Positioning"
instructions above
for mounting details)

Figure 4. Contactor control

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

Latin America

Tel [phone]
Fax [phone]
[email protected]

Control
thermostat

nVent.com

©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specifications without notice.

Raychem-IM-H56913-E507SLS-EN-1805 PN 137863