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Installation and Operating Instructions for Thermostats Type TS and TSE
1 Application 4 Connection
Thermostats Type TS and TSE are manufactured in accordance with Directive 94/9EC (ATEX 100a) and, among other applications, designed for temperature control of instrument enclosures or protective cabinets. Type TS thermostat is factory-installed in the connection cable of the electric heater (standard design). Type TS-E thermostat is an external thermostat with its own connection cable designed for on-site attachment to the electric heater by means of distance rolls Both thermostats are approved for use in Zone 1 and Zone 2 hazardous areas, explosion groups G/D and temperature class T6.
The heater must only by connected and secured by personnel technically qualified in accordance with the label specifications "rated voltage“ and "rated current“: Circuit breakers (characteristics B) 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. The terminal is marked as such. Residual current operated devices will increase the safety of people and heating equipment and are recommended for this reason.
2
Technical Data
5
Initial Operation
Rated voltage Max. 230 V AC Permissible operating voltage Max. 265 V AC Special voltages are possible, if the output power is adapted accordingly and the suitable components selected Rated current (according to VDE 10 A 0298) Ambient temperature -50 to + 80°C Max. permissible operating -50 to +80 °C temperature range at normal rating Installation position Any
3
Installation
Take care not to bend or exert any load on the connection cable during the transportation or unpacking of the heater. Before entry in the customer-supplied junction box, the cable must be firmly installed, observing the permissible bending radius of 5 times the outside cable diameter. The thermostat has to be installed in a housing that meets the requirements of EN 50028 Sec. 5.2. Example: In order to effectively use the potential equalization and the thermal feedback of the heater, the TSE thermostat has to be connected to the heater as per illustration 2 by using the set of bolts supplied with the thermostat. The TSE has to be electrically connected in series with the heater in an EEx-e junction box (as per illustration 9). The TS thermostat may hang under the heater or be in contact with the floor of the enclosure (as per illustration 1). The TS thermostat and the heater must be electrically connected in an EEx-e junction box.
Installation with TS (integrated in the heater) and installation with TSE (bolted to the heater): As soon as the heater with integrated thermostat TS or with external thermostat TS-E is properly installed in accordance with the installation instructions specified in point 3 and point 4, ensuring free convention and the necessary clearances, it may be switched on. A safety fuse will permanently open the circuit if the above installation and operating instructions are not followed.
6
Maintenance
Performance and safety tests can be conducted at intervals to be determined by the operator in compliance with current regulations. Repair work must only be carried out by the manufacturer.
7 Safety Instructions for the Heater
Installation of the heater in an exposed position involves a certain risk of injury, especially the ends of the fins and the hot surfaces: • • • • Max. 160°C with T3 heaters Max. 100°C with T4 heaters Max. 70°C with T5 heaters Max. 50°C with T6 heaters
HO670-0e TS/TSE-Operating instructions
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www.intertec-hess.com
Installation and Operating Instructions for Thermostats Type TS and TSE
8 Installation Position and Minimum Clearances
min. 50mm
min. 50mm
min. 30mm min. 30mm
Illustration 2 with TSE Thermal coupling of two heaters
Illustration 1 with TS
9
L1 N PE
Wiring Diagramme
L1 N PE
e.g. in series with other failure alarms
Option: AM failure alarm
Ex(e) Junction Box
Ex Junction Box
bn
bl
ye/gn
bl
bl
TS
ϑ>
bn bl bn bl AM bn bl bn bl AM
bl bl
MINITHERM...
ϑ>
ϑ<
PA
ϑ>
TSE
ϑ>
ϑ<
ϑ>
ϑ<
Option: AM bl=blue bn=brown ye/gn=yellow/green bl=black
MULTITHERM
MULTITHERM
HO670-0e TS/TSE-Operating instructions
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