Thermostats Series 142

Transcription

1 Thermostats Series Features Large setting scale Standard two SPDT, one SPDT on explosion proof types Rugged, insulation proved housing, protection class IP 55 Silumin types IP 65 (i. e. for maritime application) Explosion proof types IP 55 Sealable TF Standard Housing TFg Silumin Housing Ex / TF V Technical Data TF / TFg Type of Contacts Non-Inductive Amp. (AC) Inductive Amp. (AC) Inductive Amp. (DC) Motor Rating, Full Load Amp. Motor Rating, Locked Rotor Amp. Bellows Heater at TFL / TFLg Ambient Temperature Range Vibration Resistance (0 to 000 Hz) Protection acc. to DIN 0050 / IEC 59 Cable Entry Options SPDT 6 A / 30 V AC 6 A / 30 V AC 0, A / 30 V DC A / 30 V AC 7 A / 30 V AC 30 V AC -50 C to +70 C g IP 55 with Standard Housing IP 65 with Silumin Housing Cable Glands Pg 3,5, Plastics at Standard Housing Cable Glands Pg 3,5, Brass at Silumin Housing Gold Plated Contacts for Electronic Application Technical Data Ex / TF V Ex-Protection acc. to VDE 070/07 i. e. EEx ed IIC T6 EN 500/8/9 Certificate of Conformity PTB No. Ex - 80 / 089 Type of Contacts SPDT, Flame Proof Non-Inductive Amp. (AC) 7 A / 30 V AC Inductive Amp. (AC) 0,5 A / 30 V AC Inductive Amp. (DC) 0,03 A / 30 V DC Protection acc. to DIN 0050 / IEC 59 IP 55 Ambient Temperature Range -0 C to +0 C Vibration Resistance (0 to 000 Hz) g Cable Entry Cable Gland Pg 3,5, Brass Electrical Connection Ex-Proof Terminals 66 A.5./0005/E

2 Thermostats with Standard Housing VDE 0660 / 063 Type Order- Range Lowest Factory Max. Bulb Charge Capillary No. Upper Differential Switch Point Setting Bulb and Style Tube Switch Point ÐVT Temp. Length C K C C C m TF - AA , / TF - AA , / Vapor/A TF - 3 AA ,5 / TF - 3 AD / TF - AD / Liquid/D TF - 5 AD , / TF - 5 AC , / TF - 6 AC , / TF - 7 AC , / Liquid/C TF - 8 AC , / TF - 9 AC , / Room Thermostats with SPDT Contact TFL - AE00/ W / TFL - AE00/ W / Vapor/E 0 TFL - 3 AE00/ W , / TFL - AE00/ W , / Frost Monitors TW - AP ,5 +7,5 fix + +,5 / TB - DP 0/ W ,5 +7 man. Reset min Vapor/P 6 (Limiter with SPDT contact) appr.,5 fix Thermostats with Silumin Housing VDE 0660 / 063 Type Order- Range Lowest Factory Max. Bulb Charge Capillary No. Upper Differential Switch Point Setting Bulb and Style Tube Switch Point ÐVT Temp. Length C K C C C m TFg - AA , / TFg - AA , / Vapor/A TFg - 3 AA ,5 / TFg - 3 AD / TFg - AD / Liquid/D TFg - 5 AD , / TFg - 5 AC , / TFg - 6 AC , / TFg - 7 AC , / Liquid/C TFg - 8 AC , / TFg - 9 AC , / Room Thermostats with SPDT Contact TFLg - AE00/ W / TFLg - AE00/ W / Vapor/E 0 TFLg - 3 AE00/ W , / TFLg - AE00/ W , / Frost Monitors TWg - AP ,5 +7,5 fix + +,5 / TBg - DP 0/ W ,5 +7 man Reset min Vapor/P 6 (Limiter with SPDT Contact) appr.,5 fix A.5./0005/E 67

3 # " # & " Thermostats Ex-Proof VDE 07, EN 500/8/9 Type Order- Range Lowest Factory Max. Bulb Charge Capillary No. upper Differential Switch Point Setting Bulb and Style Tube Switch Point ÐVT Temp. Length C K C C C m Ex / TF V - AA , / Ex / TF V - AA , / Vapor/A Ex / TF V - 3 AA ,5 / Ex / TF V - 3 AD / Ex / TF V - AD / Liquid/D Ex / TF V - 5 AD , / Ex / TF V - 5 AC , / Ex / TF V - 6 AC , / Ex / TF V - 7 AC , / Liquid/C Ex / TF V - 8 AC , / Ex / TF V - 9 AC , / Room Thermostats Ex / TFL V - AE / Ex / TFL V - AE / Vapor/E 0 Ex / TFL V - 3 AE , / Ex / TFL V - AE , / Frost Monitors Ex / TF V - AP ,5 +7,5 fix + +,5 / Vapor/P 6 Accessories & Spare Parts Description Order-No. Insulation Console for TS Mounting Console for TF(L) / Locking Piece for TF(L) / Blanking Plug instead of Adjusting Knob, for TF(L) / Capillary Tube Holder e.g. for Frost Monitors 0 3 Capillary Tube Glands, Brass R/, max. 5bar tight, max. 00 C for Bulb Style A / C / D Sensing Bulb Wells Mounting Depth mm Thread for Bulb Order-No. without Thread with Thread R 7,0 66,0 /HH A ,0 56,0 /HH C ,5 86,5 /HH F ,0 87,0 3/HH D # #,5 5 $ # # # " Ø,5 5 $ " &! M 5 $ # $ Mounting bracket angle Extension bracket Universal mounting bracket PCN: 0 7 PCN: PCN: A.5./0005/E

4 Thermostats Basic Terms and Technical Information Characteristics ALCO-thermostats are electric circuit control devices which open or close an electric contact depending on temperature changes at the bulb. Description of bulb charges The application range of thermostats in mainly determined by the charge. Accordingly various bulb shapes and sizes are necessary. x x Vapour charge, bulb type A, E, P The thermosystem is filled with a medium in vapour phase. A thermostat with vapour charge operates in accordance with temperature changes at the bulb as long as the bulb is the coldest part in the whole system (bellows, capillary tube, bulb). ALCO thermostats are equipped with a bellows heater (8 kohm, 30 V) to avoid such conditions (not for TF and Explosion proof types). On applications with low current the bellows heater has to be removed. Max. bulb temperature is 50 C (70 C for bulb type E). Response time is very fast. Liquid charge Bulb type D : This charge only reacts on temperature changes at the bulb. The max. bulb temperature is 00 C. Bulb type C: Bulb must be warmer than capillary tube and bellow (i.e. for heating purpose). Max. bulb temperature is 0 C. Response time is fast. x Adsorption charge, bulb type F This charge only reacts on temperature changes at the bulb. Max. bulb temperature is 00 C. Response time is slow but perfectly suitable for common refrigeration systems. Adjustment of switching points A thermometer should always be used for comparison when adjusting the switching points on temperature controls. The setting scale on the device is intended to serve for orientation, showing the setting range of the upper switching point t max in C and F and the value of the temperature differentialvt in K as difference between the upper switching point t max and the lower switching point t min. The upper switching point t max has to be adjusted on the scale, whereas the lower switching point t min is given by adjustment of the desired switching differential Vt. The formula is: Upper switching point Differential = Lower switching point t max Vt = t min Important! The differential Vt mentioned on the differential scale and in the technical data refers to the upper part of the setting range and the upper switching point. In the lower part of the setting range an increase of the differential Vt can be expected. The lowest possible lower switching point t min is mentioned in the selection tables and is helpful to select switching points with large differentials Vt in the lower temperature range. Bulb Sizes A E P C D F 5 65 AMW AMW Ø 9 70 AMW Ø,5 AMW AMW AMW Ø Ø Ø 9,5 Vapour Vapour Vapour Liquid Liquid Adsorption 6 A.5./0005/E

5 Function of contacts SPDT - On temperature rise above setting - opens and - closes. - On temperature drop below setting - closes and - opens. SPDT - with off switch AUTOmatic - STOP SPDT with manual reset min. - On temperature drop below setting - closes, - opens and latches. - The device can be manually reset when the temperature has risen at least K above setting. SPDT - with bellows heater include a 8 k Ohm, 30 V ac/dc resistor SPDT with manual reset max. - On temperature rise above setting - opens and - closes and latches. - The device can be manually reset when the temperature has dropped K below setting. Standards and regulations Important for the installation of thermostats: VDE 070/07: Regulations for firedamp and explosion proofed electric equipment VDE 063: Specification for temperature controls and (EN 60730) temperature cut-outs VDE 0660: Specifications for low-voltage switchgear. (EN 6097) EN 378: Refrigerating systems and heat pumps - Safety and environmental requirements Selection Guide for Thermostats Selection Criteria Design Temperature Protection Number Suitable for Adjust- Rated Operational Series Range DIN 0050 of low Voltage able Current at 30V AC Cata- IEC 59 Contacts Applications Inductive Motor logue (SPDT) i.e. Amp. Rating Page C Electronic AC UL Standard IP 3/ TS model -55 to +80 IP30 with - Yes 0 A A 6 off switch Higher Optional TF require- -50 to +80 IP 55 gold plated Yes 6 A A 66 ments contacts For outdoor Optional Yes TFg and maritime -50 to +80 IP 65 gold plated after removing 6 A A 66 applications contacts cover Ex-proof Yes Ex/TF V EEx -50 to +80 IP 55 - after removing 0,5 A - 66 ed IIC T6 cover Neutral TFM zone -50 to +80 IP 55 Neutral Standard Yes 0,5 A - - thermostat zone A.5./0005/E 63

6 Standards and Regulations Country and testing authority Series Series Series Series Series Series 5/5 PS3 FD 3 FSF/ PT3 FV Europe CE per Low Voltage Directive 73/3/EWG Y Y Y Y Y Y Europe FSF CE per EMC Directive 89/336/EWG FV + Y Filter Europe EN 50 0 / 8 / 9 N Germany TÜV N N N N Germany VDE N N N Canada CSA Y Y Y Denmark Demko K K K K Finland El.-Inspektoratet Y Y Y Norway Nemko Y N Y Austria ÖVE Y K Y K Switzerland SEV Y Y Y Y USA Unterwriter Laboratories Y S S Y FSF Ship classification organizations German. Lloyd GL N 3 G 3 LIoyd s Register of Shipping LRS G 3 Register of USSR RS G 3 Notes Y Standard version approved G Silumin version approved K No approval necessary. Standard version can be used. S Special version approved For TÜV approved pressure switches only Manufactured and tested to VDE standards on our own responsibilty. 3 For use on ships the devices must be fitted with marine-type cable glands. Explosion-proof version approved NEMA-guidelines are fulfilled by all units in UL-approved version. 8 A.5./0005/E