Honeywell A4021 Series User Manual

7
EN2R--9023 9705R0--NE
SPECIFICATIONS
Mechanical
Model
A4021A
Dimensions
Refer to Fig. 7.
For mounting bracket dimensions refer to Fig. 8.
Weight
Including subbase: 0.65 Kg
Mounting
ZL030001 subbase.
The subbase can be assembled by 2 screws on a panel.The
cover can be removed by loosening one screw. For mounting
hole dimensions see Fig. 7. installation drawing.
Orientation
There are no restrictions in the orientation.
Environmental ratings
Ambient temperature range:
Operating :--10 ... 60 °C
Storage :--40 ... 80 °C
Humidity: :0 -- 95% RH at 40 °C (non--condensing)
Vibration :0.5 G environment
Electrical
Supply voltage
Line voltage: 220 ... 240 Vac, 50 Hz
100 ... 120 Vac, 50 Hz
Refer to Table 3.
Other voltage ranges and frequencies are available on
request.
Fusing
The A4021A should be externally fused to prevent damage to
the valve proving system, wiring or peripherals
External fuse: 16 A slow max.
Internal fuse: 5 A slow max.
Power consumption
Maximum 4.5 VA
Electrical ratings
Valve outputs: 4A, cos. ϕ 0.7
Vent valve output: 1A, cos. ϕ 0.7
Ignition controller output: 4A, cos. ϕ0.7
Alarm output: 2A, cos. ϕ 0.7
Electrical connection
4WiringconduitaccordingtoPG11areprovidedinthe
subbase. M3.5 screw terminals, including earth connection.
Enclosure
IP40
Functional
Field adjustments (calibration)
None
Test--times
Depending on O.S. number.
For A4021A1002 and A4021A1010 per valve: 25 s.
Other test times available on request.
Total test--time (depending on test time per valve)
For model A4021002 and A4021A1010: approx. 65 seconds
Reset
NON--volatile lock--out
Manual, with push--button on controller or with remote reset
button.
Design life
> 10 years or 250.000 cycles.
Recommended pressure switch
C6058A gas pressure switch

Honeywell A4021 Series Specifications

General

Brand	Honeywell
Model	A4021 Series
Category	Control Unit
Language	English