krom schroeder TC 1 Operating Instructions Manual Download Page 2

TC 1, TC 2, TC 3 · Edition 07.22

EN-2

2 CHeCKInG tHe UsAGe

Tightness control for checking two safety valves before 

and after burner run, with adjustable measurement 
time for adjustment to different test volumes, leakage 
rates and inlet pressures. The TC is used in industrial 
thermoprocessing equipment, on boilers and on forced 
draught burners.

tC 1, tC 2

For gas solenoid valves, quick opening or slow opening 
with start gas rate.

tC 3

With fitted auxiliary valves for quick or slow opening 
gas solenoid valves as well as for motorized valves.

This function is only guaranteed when used within the 

specified limits – see page 10 (11 Technical data). 

Any other use is considered as non-compliant. 

2.1 type code tC 1V 

tC

 

 Tightness control 

1V

 

 For attachment to valVario 

05

 

 p

u

 max. 500 mbar  

W

 

 Mains voltage 230 V AC, 50/60 Hz 

Q

 

 Mains voltage 120 V AC, 50/60 Hz 

K

 

 Mains voltage 24 V DC 

/W

 

 Control voltage: 230 V AC, 50/60 Hz 

/Q

 

 Control voltage: 120 V AC, 50/60 Hz 

/K

 

 Control voltage: 24 V DC 

2.2 type code tC 1C, tC 2, tC 3

tC

 

 Tightness control 

1C

 

 For attachment to CG 

2

 

 For quick opening individual valves 

3

 

 For quick or slow opening individual 

valves 

R

 

 Rp internal thread 

n

 

 NPT internal thread 

05

 

 p

u

 max. 500 mbar  

W

 

 Mains voltage 230 V AC, 50/60 Hz 

Q

 

 Mains voltage 120 V AC, 50/60 Hz 

K

 

 Mains voltage 24 V DC 

/W

 

 Control voltage: 230 V AC, 50/60 Hz 

/Q

 

 Control voltage: 120 V AC, 50/60 Hz 

/K

 

 Control voltage: 24 V DC 

 

 

   

TC..N only for 120 and 24 V

2.3 type label

Gas type, measurement time, installation position, 

mains voltage, mains frequency, power consump-
tion, ambient temperature, enclosure, max. switch-on 
current and max. inlet pressure – see type label.

TC

D-49018 Osnabrück, Germany

t

M

(s)  5 10 15 20 25 30

2.4 Part designations

tC 1V

TC 1V

Connectors

5 x M16 cable glands

2 x O-rings

tC 1C

TC 1C for combination controls CG

1 x adapter  

2 x O-rings  
2 x retaining screws 

Connectors

5 x M16 cable glands

2 x O-rings

tC 2

p

z

TC 2 for solenoid valves

1 x adapter  

2 x O-rings  
2 x retaining screws 

Connectors

5 x M16 cable glands

2 x O-rings

tC 3

5

TC 3

Auxiliary valves

Valve block

5 x M16 cable glands

1 x screw plug

Summary of Contents for TC 1

Page 1: ...r This unit must be installed and commissioned in accordance with the regulations and standards in force These instructions can also be found at www docuthek com 1 2 Explanation of symbols 1 2 3 a b c Action Instruction 1 3 Liability We will not be held liable for damage resulting from non observance of the instructions and non com pliant use 1 4 Safety instructions Information that is relevant fo...

Page 2: ...ype code TC 1C TC 2 TC 3 TC Tightness control 1C For attachment to CG 2 For quick opening individual valves 3 For quick or slow opening individual valves R Rp internal thread N NPT internal thread 05 pu max 500 mbar W Mains voltage 230 V AC 50 60 Hz Q Mains voltage 120 V AC 50 60 Hz K Mains voltage 24 V DC W Control voltage 230 V AC 50 60 Hz Q Control voltage 120 V AC 50 60 Hz K Control voltage 24...

Page 3: ... with proof of closure switch VCx S or VCx G Connect the TC to the inlet pressure connection pu and the interspace pressure connection pz of the inlet valve Ensure that connections pu and pz on the TC and the gas solenoid valve are not reversed TC and bypass pilot gas valve cannot be fitted together on the same side of the double block valve In the case of a VCx combination it is recommend ed to a...

Page 4: ...not reversed pz pz pd pu TC 3 R Rp TC 3 N NPT Use a 12 x 1 5 or 8 x 1 pipe for the pipe con nections pu pd pz 1 Mount TC 3 Only use approved sealing material to seal the pipe connections 2 Seal the unused connection pz on the TC using the sealing plug supplied 4 WIRING WARNING Risk of injury Please observe the following to ensure that no damage occurs Electric shocks can be fatal Before working on...

Page 5: ... glands are to remain closed with a plug Otherwise dirt or moisture can penetrate the housing 8 Wire as shown on the connection diagram For PE wire connection 5 PE terminals are available for forwarding They are designed as distributor terminals e g to connect the PE wires of the valves to the system PE connection to the system PE must be carried out wired by the user Connection diagram for TC 1 T...

Page 6: ...of malfunction Continue with page 6 7 Setting the measure ment time 7 SETTING THE MEASUREMENT TIME The measurement time tM can be set with a jumper in increments of 5 s to max 30 s tM is set to 30 s at the factory tM 5s 10s 15s 20s 25s 30s No jumper no function The operating signal LED is permanently red see page 8 9 Assistance in the event of malfunction The longer the measurement time tM the gre...

Page 7: ...ing the measurement time tM is available at www adlatus org Calculation example Qmax 100 m3 h pu 100 mbar VP VV L x VR 7 l QL 100 m3 h x 1000 1000 100 000 l h 1000 100 l h tM s 2 5 x pu mbar x VP l QL l h 2 5 x 100 x 7 100 17 5 s Set the next highest value in this example 20 s 7 5 Setting the measurement time on the device To set the calculated measurement time the jumper in the device must be rec...

Page 8: ...operating status In the case of untested valves the 1 and 2 LEDs are yellow There is mains voltage at terminal 1 and renewed test after switching off the voltage to termi nal 10 thermostat start up signal During the test the 1 and 2 LEDs will flash yellow 8 4 After the test The 1 and 2 LEDs are green Both valves are tight Mode 1 or Mode 3 the enable signal is issued via terminal 6 when voltage is ...

Page 9: ...oo many remote resets More than 5 resets have been conducted within the last 15 minutes either automatically or manually Consecutive fault caused by a previous fault whose actual cause has not been remedied Pay attention to previous fault messages Remedy cause Then press the reset button 1 or 2 LED is permanently red The valve is leaking The TC performs a fault lock out Replace the valve Wiring of...

Page 10: ... 60 Hz 230 V AC 15 10 50 60 Hz 24 V DC 20 Power consumption all LEDs green 5 5 W at 120 V AC and 230 V AC 2 W at 24 V DC TC 3 plus 8 VA for an auxiliary valve Fine wire fuse 5 A slow acting H 250 V pursuant to IEC 60127 2 5 F1 protection of valve outputs terminals 15 and 16 fault signal terminal 12 and supply of the control inputs terminals 2 7 and 8 F2 protection of safety interlock controller en...

Page 11: ...ion is subject to the surveillance proce dure pursuant to Regulation EU 2016 426 Annex III paragraph 3 Elster GmbH 14 3 SIL and PL Safety specific characteristic values see Safety manual Technical Information TC D GB F www docuthek com 14 3 1 Safety specific characteristic values for SIL and PL Mains and control voltage 120 V AC 230 V AC Diagnostic coverage DC 91 4 Mean probability of dangerous fa...

Page 12: ...ponding recycling centre Do not dispose of the unit with the usu al domestic refuse Do not burn the product On request old units may be returned carriage paid to the manufacturer in accordance with the relevant waste legislation requirements 2022 Elster GmbH We reserve the right to make technical modifications in the interests of progress The Honeywell Thermal Solutions family of products includes...

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