Pentair HLTSTAT10C, HLTSTAT20C Instruction Manual

© 2016 Pentair Equipment Protection 89115889Rev. E P/N 89115890© 2016 Pentair Equipment Protection 89115889Rev. E P/N 89115890

Hazardous Location Heaters

Thermostat

INSTRUCTION MANUAL

© 2016 Pentair Equipment Protection

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89115889

NOTE: The respective operating instructions must be observed. For EC Type
Examination Certificate PTB 03 ATEX 1136X and IEC Scheme Certificate
IECEX PTB 07.0054X, see www.pentairprotect.com.

TABLE OF CONTENTS

Application .............................................................................................................. 3

Control Accuracy .............................................................................................................. 3

Technical Data ........................................................................................................ 3

Design Data ....................................................................................................................... 3

HLTSTAT Thermostat Nominal Setpoints ....................................................................... 3

Explosion Protection ........................................................................................................ 4

Installation Instructions ........................................................................................ 4

ROUTINE CHECK TESTS.................................................................................................. 5

Initial Operation ................................................................................................................ 5

Wiring Diagram ...................................................................................................... 7

Maintenance ........................................................................................................... 7

CE Declaration of Conformity ............................................................................... 8

WARRANTY........................................................................................................... 10

RETURN AND REPAIR POLICY ...................................................................................... 10

LIMITATION OF LIABILITY .............................................................................................. 11

© 2016 Pentair Equipment Protection

89115889

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APPLICATION

When connected to an electric heater, the thermostat can regulate the temperature in a
housing to the pre-set, nominal, setpoint; see HLTSTAT Thermostat Nominal Setpoints
table below.

The thermostat closes the circuit when the temperature is below the setpoint and opens
it when the temperature is above the setpoint.

CONTROL ACCURACY

The air temperature in a heated housing is not the same everywhere. Depending on the
difference between inside and outside temperature (delta T), insulation, configuration
of the heater and the installed equipment etc., the temperature (e.g. between top and
bottom) can fluctuate by 18 F [10 C] or more.

For exact temperature control of an instrument, a proportional controller with
temperature sensor should be used.

TECHNICAL DATA

DESIGN DATA

HLTSTAT10C, HLTSTAT20C

Rated voltage (VAC or VDC) 0 - 400V

Maximum Rated Current (Amps)
(acc. to DIN VDE 0298)

10

Temperature Tolerance +/- 5 F [3 C]

Temperature class T6

Ambient temperature

-76 to +140 F
(-60 to +60 C)

Maximum permissible operating
temperature range at normal rating

-76 to +302 F

(-60 to +150 C)

Connection cable

39 (1m) long silicone cable, notch and oil

resistant, 3x AWG16; Ø 0.37 (9.4mm)

Conduit connection ½ NPT

Ingress Protection IP66 / IP68 (1bar/30min)

Material

seawater-proof aluminium, black

anodized

Length (in./mm) 3.5 (89)

Width (in./mm) 1.6 (41)

Depth (in./mm) 1.2 (30)

Weight (lb./g) 1.1 (28)

HLTSTAT THERMOSTAT NOMINAL SETPOINTS

Type Switch on Switch off

HLTSTAT10C 50 F / 10 C 64 F / 18 C

HLTSTAT20C 68 F / 20 C 82 F / 28 C

© 2016 Pentair Equipment Protection

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89115889

EXPLOSION PROTECTION

TAE

Manufacturer INTERTEC-Hess

CSA Certificate 1655545 (LR43674)

CSA Type of Protection

Cl. I, Grp. ABCD T6

Cl. II Grp. EFG

IEC Scheme Certificate IECEx PTB 07.0054X

EC Type Examination Certificate PTB 03 ATEX 1136 X

Marking

II 2 G Ex d IIC T6

II 2 D Ex tD A21 IP68 T80 C

INSTALLATION INSTRUCTIONS

The thermostat must be attached to the face of the heater as noted. Pentair DAHHL
finned heaters are equipped with slotted mounting rails in the fins. Slightly loosen the
mounting bolt included in the thermostat.

Insert the head of the bolt into one of the slotted mounting rails of the finned profile.
The PTFE spacer must remain outside, as this provides the right gap from the
thermostat to the surface of the heater fins. Carefully tighten the bolt by turning the
thermostat. DO NOT OVERTIGHTEN.

The thermostat is equipped with a ground terminal. Use a cable gland or a ½ NPT
conduit depending on the application.

Be careful not to bend or exert any load on the connection cable during unpacking and
transport.

Before entering the customer-supplied Ex junction box, the connection cable must be
firmly installed and mechanically protected observing the permissible bending radius of
5 times the outside cable diameter.

If the connection is made in a hazardous area, the connection cable must be connected
in a housing that meets the requirements of one of the types of ignition protection
mentioned in EN 50014 Section 1.2.

When determining the operating temperature, the maximum permissible ambient
temperature, self-heating and, possibly, heat transfer (medium) must be considered.

In dust hazardous areas, the applicable requirements of the EN 60079-14 have to be
observed.

CAUTION! Remove the RED protection cap only for ½ NPT conduit installation. Never
remove the adapter. See Figure 3 on page 6

The components must only be connected and secured by certified technical personnel
in accordance with the label specifications rated voltage and rated current. Circuit
breakers suitable for up to 16 A can be used for short circuit and line protection.

A ground terminal is provided for the purpose of ensuring potential equalization; see
Figure 1 on page 5. The terminal is marked as such.