dunphy TD - Page 152

Operating Instructions For TD/TAD4 Dual Fuel Burner
June 13 152 of 165 TD/TAD4 Manual Rev 4
Specifications
Operating pressure
max. 500 mbar (50 kPa)
Test volume
4.0 l
Pressure increase by motor pump
20 mbar
Nominal voltage
(Permissible voltage range)
230 V AC (-15%) to -240 V (+6%), VPS 504 series 05: 24 VDC
For further voltages, refer to type overview
Frequency
VPS series 01-04: 50 Hz or 60 Hz
Series 05: DC
Rating requirement
During pumping time approx. 6 VA, in operation 17 VA
Prefuse (provided by customer)
10 A quick-acting or 6.3 A slow-acting fuse
Fuse installed in housing cover,
replaceable
Microfuse 6.3 slow-blow L 250 V; IEC-127-2/III (DIN 41 662)
Switching current
Operating output VPS 504 Series 01, 02, 03, 04, 05: max. 4 A
Interference output VPS 504 Series 02, 04, 05: max.1A
Refer to motor startup current!
Degree of protection
VPS 504 Series 01, 02, 03: IP 40
VPS 504 Series 04, 05: IP 54
Ambient temperature
50 Hz 230 VAC -15°C to +70°C
others: -15°C to +60°C
Release time
Approx. 10 - 26 s, depending on test volume and input pressure
Sensitivity limit
max. 50 l/h
At inlet pressures of < 50 mbar, limit pressure rates well below 50 l of
air
per hour occur due to the mode of operation. This allows for
applications
involving low inlet pressures.
Switch-on duration of control
100 % ED
Max. number of test cycles
20/h. Wait for at least 2 minutes after carrying out more than 3
consecutive
test cycles.
Installation position
vertical, horizontal, not upside down
Media
• Standard model
• Liquefied gas model
Gas families 1, 2, 3 and other gaseous media.
Not suitable for butane.
Gas family 3 and butane
The VPS 504 operates depending on pressure
build-up.
The program module starts to function when
heat is requested.
Test is performed depending on the
burner functional procedure:
Check prior to burner start or
Check during pre-purge period or
Check after burner shut-down